/* Subroutines used for code generation on IA-32.
Copyright (C) 1988, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
- 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+ 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
This file is part of GCC.
/* We assume COSTS_N_INSNS is defined as (N)*4 and an addition is 2 bytes. */
#define COSTS_N_BYTES(N) ((N) * 2)
+#define DUMMY_STRINGOP_ALGS {libcall, {{-1, libcall}}}
+
static const
struct processor_costs size_cost = { /* costs for tuning for size */
COSTS_N_BYTES (2), /* cost of an add instruction */
COSTS_N_BYTES (2), /* cost of FABS instruction. */
COSTS_N_BYTES (2), /* cost of FCHS instruction. */
COSTS_N_BYTES (2), /* cost of FSQRT instruction. */
+ {{rep_prefix_1_byte, {{-1, rep_prefix_1_byte}}},
+ {rep_prefix_1_byte, {{-1, rep_prefix_1_byte}}}},
+ {{rep_prefix_1_byte, {{-1, rep_prefix_1_byte}}},
+ {rep_prefix_1_byte, {{-1, rep_prefix_1_byte}}}}
};
/* Processor costs (relative to an add) */
COSTS_N_INSNS (22), /* cost of FABS instruction. */
COSTS_N_INSNS (24), /* cost of FCHS instruction. */
COSTS_N_INSNS (122), /* cost of FSQRT instruction. */
+ {{rep_prefix_1_byte, {{-1, rep_prefix_1_byte}}},
+ DUMMY_STRINGOP_ALGS},
+ {{rep_prefix_1_byte, {{-1, rep_prefix_1_byte}}},
+ DUMMY_STRINGOP_ALGS},
};
static const
COSTS_N_INSNS (3), /* cost of FABS instruction. */
COSTS_N_INSNS (3), /* cost of FCHS instruction. */
COSTS_N_INSNS (83), /* cost of FSQRT instruction. */
+ {{rep_prefix_4_byte, {{-1, rep_prefix_4_byte}}},
+ DUMMY_STRINGOP_ALGS},
+ {{rep_prefix_4_byte, {{-1, rep_prefix_4_byte}}},
+ DUMMY_STRINGOP_ALGS}
};
static const
COSTS_N_INSNS (1), /* cost of FABS instruction. */
COSTS_N_INSNS (1), /* cost of FCHS instruction. */
COSTS_N_INSNS (70), /* cost of FSQRT instruction. */
+ {{libcall, {{256, rep_prefix_4_byte}, {-1, libcall}}},
+ DUMMY_STRINGOP_ALGS},
+ {{libcall, {{-1, rep_prefix_4_byte}}},
+ DUMMY_STRINGOP_ALGS}
};
static const
COSTS_N_INSNS (2), /* cost of FABS instruction. */
COSTS_N_INSNS (2), /* cost of FCHS instruction. */
COSTS_N_INSNS (56), /* cost of FSQRT instruction. */
+ /* PentiumPro has optimized rep instructions for blocks aligned by 8 bytes (we ensure
+ the alignment). For small blocks inline loop is still a noticeable win, for bigger
+ blocks either rep movsl or rep movsb is way to go. Rep movsb has apparently
+ more expensive startup time in CPU, but after 4K the difference is down in the noise.
+ */
+ {{rep_prefix_4_byte, {{128, loop}, {1024, unrolled_loop},
+ {8192, rep_prefix_4_byte}, {-1, rep_prefix_1_byte}}},
+ DUMMY_STRINGOP_ALGS},
+ {{rep_prefix_4_byte, {{1024, unrolled_loop},
+ {8192, rep_prefix_4_byte}, {-1, libcall}}},
+ DUMMY_STRINGOP_ALGS}
};
static const
COSTS_N_INSNS (1), /* cost of FABS instruction. */
COSTS_N_INSNS (1), /* cost of FCHS instruction. */
COSTS_N_INSNS (54), /* cost of FSQRT instruction. */
+ {{libcall, {{256, rep_prefix_4_byte}, {-1, libcall}}},
+ DUMMY_STRINGOP_ALGS},
+ {{libcall, {{256, rep_prefix_4_byte}, {-1, libcall}}},
+ DUMMY_STRINGOP_ALGS}
};
static const
COSTS_N_INSNS (2), /* cost of FABS instruction. */
COSTS_N_INSNS (2), /* cost of FCHS instruction. */
COSTS_N_INSNS (56), /* cost of FSQRT instruction. */
+ {{libcall, {{256, rep_prefix_4_byte}, {-1, libcall}}},
+ DUMMY_STRINGOP_ALGS},
+ {{libcall, {{256, rep_prefix_4_byte}, {-1, libcall}}},
+ DUMMY_STRINGOP_ALGS}
};
static const
COSTS_N_INSNS (2), /* cost of FABS instruction. */
COSTS_N_INSNS (2), /* cost of FCHS instruction. */
COSTS_N_INSNS (35), /* cost of FSQRT instruction. */
+ /* For some reason, Athlon deals better with REP prefix (relative to loops)
+ compared to K8. Alignment becomes important after 8 bytes for memcpy and
+ 128 bytes for memset. */
+ {{libcall, {{2048, rep_prefix_4_byte}, {-1, libcall}}},
+ DUMMY_STRINGOP_ALGS},
+ {{libcall, {{2048, rep_prefix_4_byte}, {-1, libcall}}},
+ DUMMY_STRINGOP_ALGS}
};
static const
COSTS_N_INSNS (2), /* cost of FABS instruction. */
COSTS_N_INSNS (2), /* cost of FCHS instruction. */
COSTS_N_INSNS (35), /* cost of FSQRT instruction. */
+ /* K8 has optimized REP instruction for medium sized blocks, but for very small
+ blocks it is better to use loop. For large blocks, libcall can do
+ nontemporary accesses and beat inline considerably. */
+ {{libcall, {{6, loop}, {14, unrolled_loop}, {-1, rep_prefix_4_byte}}},
+ {libcall, {{16, loop}, {8192, rep_prefix_8_byte}, {-1, libcall}}}},
+ {{libcall, {{8, loop}, {24, unrolled_loop},
+ {2048, rep_prefix_4_byte}, {-1, libcall}}},
+ {libcall, {{48, unrolled_loop}, {8192, rep_prefix_8_byte}, {-1, libcall}}}}
+};
+
+struct processor_costs amdfam10_cost = {
+ COSTS_N_INSNS (1), /* cost of an add instruction */
+ COSTS_N_INSNS (2), /* cost of a lea instruction */
+ COSTS_N_INSNS (1), /* variable shift costs */
+ COSTS_N_INSNS (1), /* constant shift costs */
+ {COSTS_N_INSNS (3), /* cost of starting multiply for QI */
+ COSTS_N_INSNS (4), /* HI */
+ COSTS_N_INSNS (3), /* SI */
+ COSTS_N_INSNS (4), /* DI */
+ COSTS_N_INSNS (5)}, /* other */
+ 0, /* cost of multiply per each bit set */
+ {COSTS_N_INSNS (19), /* cost of a divide/mod for QI */
+ COSTS_N_INSNS (35), /* HI */
+ COSTS_N_INSNS (51), /* SI */
+ COSTS_N_INSNS (83), /* DI */
+ COSTS_N_INSNS (83)}, /* other */
+ COSTS_N_INSNS (1), /* cost of movsx */
+ COSTS_N_INSNS (1), /* cost of movzx */
+ 8, /* "large" insn */
+ 9, /* MOVE_RATIO */
+ 4, /* cost for loading QImode using movzbl */
+ {3, 4, 3}, /* cost of loading integer registers
+ in QImode, HImode and SImode.
+ Relative to reg-reg move (2). */
+ {3, 4, 3}, /* cost of storing integer registers */
+ 4, /* cost of reg,reg fld/fst */
+ {4, 4, 12}, /* cost of loading fp registers
+ in SFmode, DFmode and XFmode */
+ {6, 6, 8}, /* cost of storing fp registers
+ in SFmode, DFmode and XFmode */
+ 2, /* cost of moving MMX register */
+ {3, 3}, /* cost of loading MMX registers
+ in SImode and DImode */
+ {4, 4}, /* cost of storing MMX registers
+ in SImode and DImode */
+ 2, /* cost of moving SSE register */
+ {4, 4, 3}, /* cost of loading SSE registers
+ in SImode, DImode and TImode */
+ {4, 4, 5}, /* cost of storing SSE registers
+ in SImode, DImode and TImode */
+ 3, /* MMX or SSE register to integer */
+ /* On K8
+ MOVD reg64, xmmreg Double FSTORE 4
+ MOVD reg32, xmmreg Double FSTORE 4
+ On AMDFAM10
+ MOVD reg64, xmmreg Double FADD 3
+ 1/1 1/1
+ MOVD reg32, xmmreg Double FADD 3
+ 1/1 1/1 */
+ 64, /* size of prefetch block */
+ /* New AMD processors never drop prefetches; if they cannot be performed
+ immediately, they are queued. We set number of simultaneous prefetches
+ to a large constant to reflect this (it probably is not a good idea not
+ to limit number of prefetches at all, as their execution also takes some
+ time). */
+ 100, /* number of parallel prefetches */
+ 5, /* Branch cost */
+ COSTS_N_INSNS (4), /* cost of FADD and FSUB insns. */
+ COSTS_N_INSNS (4), /* cost of FMUL instruction. */
+ COSTS_N_INSNS (19), /* cost of FDIV instruction. */
+ COSTS_N_INSNS (2), /* cost of FABS instruction. */
+ COSTS_N_INSNS (2), /* cost of FCHS instruction. */
+ COSTS_N_INSNS (35), /* cost of FSQRT instruction. */
+
+ /* AMDFAM10 has optimized REP instruction for medium sized blocks, but for
+ very small blocks it is better to use loop. For large blocks, libcall can
+ do nontemporary accesses and beat inline considerably. */
+ {{libcall, {{6, loop}, {14, unrolled_loop}, {-1, rep_prefix_4_byte}}},
+ {libcall, {{16, loop}, {8192, rep_prefix_8_byte}, {-1, libcall}}}},
+ {{libcall, {{8, loop}, {24, unrolled_loop},
+ {2048, rep_prefix_4_byte}, {-1, libcall}}},
+ {libcall, {{48, unrolled_loop}, {8192, rep_prefix_8_byte}, {-1, libcall}}}}
};
static const
COSTS_N_INSNS (2), /* cost of FABS instruction. */
COSTS_N_INSNS (2), /* cost of FCHS instruction. */
COSTS_N_INSNS (43), /* cost of FSQRT instruction. */
+ {{libcall, {{12, loop_1_byte}, {-1, rep_prefix_4_byte}}},
+ DUMMY_STRINGOP_ALGS},
+ {{libcall, {{6, loop_1_byte}, {48, loop}, {20480, rep_prefix_4_byte},
+ {-1, libcall}}},
+ DUMMY_STRINGOP_ALGS},
};
static const
COSTS_N_INSNS (3), /* cost of FABS instruction. */
COSTS_N_INSNS (3), /* cost of FCHS instruction. */
COSTS_N_INSNS (44), /* cost of FSQRT instruction. */
+ {{libcall, {{12, loop_1_byte}, {-1, rep_prefix_4_byte}}},
+ {libcall, {{32, loop}, {20000, rep_prefix_8_byte},
+ {100000, unrolled_loop}, {-1, libcall}}}},
+ {{libcall, {{6, loop_1_byte}, {48, loop}, {20480, rep_prefix_4_byte},
+ {-1, libcall}}},
+ {libcall, {{24, loop}, {64, unrolled_loop},
+ {8192, rep_prefix_8_byte}, {-1, libcall}}}}
+};
+
+static const
+struct processor_costs core2_cost = {
+ COSTS_N_INSNS (1), /* cost of an add instruction */
+ COSTS_N_INSNS (1) + 1, /* cost of a lea instruction */
+ COSTS_N_INSNS (1), /* variable shift costs */
+ COSTS_N_INSNS (1), /* constant shift costs */
+ {COSTS_N_INSNS (3), /* cost of starting multiply for QI */
+ COSTS_N_INSNS (3), /* HI */
+ COSTS_N_INSNS (3), /* SI */
+ COSTS_N_INSNS (3), /* DI */
+ COSTS_N_INSNS (3)}, /* other */
+ 0, /* cost of multiply per each bit set */
+ {COSTS_N_INSNS (22), /* cost of a divide/mod for QI */
+ COSTS_N_INSNS (22), /* HI */
+ COSTS_N_INSNS (22), /* SI */
+ COSTS_N_INSNS (22), /* DI */
+ COSTS_N_INSNS (22)}, /* other */
+ COSTS_N_INSNS (1), /* cost of movsx */
+ COSTS_N_INSNS (1), /* cost of movzx */
+ 8, /* "large" insn */
+ 16, /* MOVE_RATIO */
+ 2, /* cost for loading QImode using movzbl */
+ {6, 6, 6}, /* cost of loading integer registers
+ in QImode, HImode and SImode.
+ Relative to reg-reg move (2). */
+ {4, 4, 4}, /* cost of storing integer registers */
+ 2, /* cost of reg,reg fld/fst */
+ {6, 6, 6}, /* cost of loading fp registers
+ in SFmode, DFmode and XFmode */
+ {4, 4, 4}, /* cost of loading integer registers */
+ 2, /* cost of moving MMX register */
+ {6, 6}, /* cost of loading MMX registers
+ in SImode and DImode */
+ {4, 4}, /* cost of storing MMX registers
+ in SImode and DImode */
+ 2, /* cost of moving SSE register */
+ {6, 6, 6}, /* cost of loading SSE registers
+ in SImode, DImode and TImode */
+ {4, 4, 4}, /* cost of storing SSE registers
+ in SImode, DImode and TImode */
+ 2, /* MMX or SSE register to integer */
+ 128, /* size of prefetch block */
+ 8, /* number of parallel prefetches */
+ 3, /* Branch cost */
+ COSTS_N_INSNS (3), /* cost of FADD and FSUB insns. */
+ COSTS_N_INSNS (5), /* cost of FMUL instruction. */
+ COSTS_N_INSNS (32), /* cost of FDIV instruction. */
+ COSTS_N_INSNS (1), /* cost of FABS instruction. */
+ COSTS_N_INSNS (1), /* cost of FCHS instruction. */
+ COSTS_N_INSNS (58), /* cost of FSQRT instruction. */
+ {{libcall, {{11, loop}, {-1, rep_prefix_4_byte}}},
+ {libcall, {{32, loop}, {64, rep_prefix_4_byte},
+ {8192, rep_prefix_8_byte}, {-1, libcall}}}},
+ {{libcall, {{8, loop}, {15, unrolled_loop},
+ {2048, rep_prefix_4_byte}, {-1, libcall}}},
+ {libcall, {{24, loop}, {32, unrolled_loop},
+ {8192, rep_prefix_8_byte}, {-1, libcall}}}}
};
/* Generic64 should produce code tuned for Nocona and K8. */
COSTS_N_INSNS (8), /* cost of FABS instruction. */
COSTS_N_INSNS (8), /* cost of FCHS instruction. */
COSTS_N_INSNS (40), /* cost of FSQRT instruction. */
+ {DUMMY_STRINGOP_ALGS,
+ {libcall, {{32, loop}, {8192, rep_prefix_8_byte}, {-1, libcall}}}},
+ {DUMMY_STRINGOP_ALGS,
+ {libcall, {{32, loop}, {8192, rep_prefix_8_byte}, {-1, libcall}}}}
};
/* Generic32 should produce code tuned for Athlon, PPro, Pentium4, Nocona and K8. */
COSTS_N_INSNS (8), /* cost of FABS instruction. */
COSTS_N_INSNS (8), /* cost of FCHS instruction. */
COSTS_N_INSNS (40), /* cost of FSQRT instruction. */
+ {{libcall, {{32, loop}, {8192, rep_prefix_4_byte}, {-1, libcall}}},
+ DUMMY_STRINGOP_ALGS},
+ {{libcall, {{32, loop}, {8192, rep_prefix_4_byte}, {-1, libcall}}},
+ DUMMY_STRINGOP_ALGS},
};
const struct processor_costs *ix86_cost = &pentium_cost;
#define m_486 (1<<PROCESSOR_I486)
#define m_PENT (1<<PROCESSOR_PENTIUM)
#define m_PPRO (1<<PROCESSOR_PENTIUMPRO)
+#define m_PENT4 (1<<PROCESSOR_PENTIUM4)
+#define m_NOCONA (1<<PROCESSOR_NOCONA)
+#define m_CORE2 (1<<PROCESSOR_CORE2)
+
#define m_GEODE (1<<PROCESSOR_GEODE)
-#define m_K6_GEODE (m_K6 | m_GEODE)
#define m_K6 (1<<PROCESSOR_K6)
-#define m_ATHLON (1<<PROCESSOR_ATHLON)
-#define m_PENT4 (1<<PROCESSOR_PENTIUM4)
+#define m_K6_GEODE (m_K6 | m_GEODE)
#define m_K8 (1<<PROCESSOR_K8)
+#define m_ATHLON (1<<PROCESSOR_ATHLON)
#define m_ATHLON_K8 (m_K8 | m_ATHLON)
-#define m_NOCONA (1<<PROCESSOR_NOCONA)
+#define m_AMDFAM10 (1<<PROCESSOR_AMDFAM10)
+#define m_ATHLON_K8_AMDFAM10 (m_K8 | m_ATHLON | m_AMDFAM10)
+
#define m_GENERIC32 (1<<PROCESSOR_GENERIC32)
#define m_GENERIC64 (1<<PROCESSOR_GENERIC64)
-#define m_GENERIC (m_GENERIC32 | m_GENERIC64)
/* Generic instruction choice should be common subset of supported CPUs
- (PPro/PENT4/NOCONA/Athlon/K8). */
-
-/* Leave is not affecting Nocona SPEC2000 results negatively, so enabling for
- Generic64 seems like good code size tradeoff. We can't enable it for 32bit
- generic because it is not working well with PPro base chips. */
-const int x86_use_leave = m_386 | m_K6_GEODE | m_ATHLON_K8 | m_GENERIC64;
-const int x86_push_memory = m_386 | m_K6_GEODE | m_ATHLON_K8 | m_PENT4 | m_NOCONA | m_GENERIC;
-const int x86_zero_extend_with_and = m_486 | m_PENT;
-const int x86_movx = m_ATHLON_K8 | m_PPRO | m_PENT4 | m_NOCONA | m_GENERIC | m_GEODE /* m_386 | m_K6 */;
-const int x86_double_with_add = ~m_386;
-const int x86_use_bit_test = m_386;
-const int x86_unroll_strlen = m_486 | m_PENT | m_PPRO | m_ATHLON_K8 | m_K6 | m_GENERIC;
-const int x86_cmove = m_PPRO | m_GEODE | m_ATHLON_K8 | m_PENT4 | m_NOCONA;
-const int x86_3dnow_a = m_ATHLON_K8;
-const int x86_deep_branch = m_PPRO | m_K6_GEODE | m_ATHLON_K8 | m_PENT4 | m_NOCONA | m_GENERIC;
-/* Branch hints were put in P4 based on simulation result. But
- after P4 was made, no performance benefit was observed with
- branch hints. It also increases the code size. As the result,
- icc never generates branch hints. */
-const int x86_branch_hints = 0;
-const int x86_use_sahf = m_PPRO | m_K6_GEODE | m_PENT4 | m_NOCONA | m_GENERIC32; /*m_GENERIC | m_ATHLON_K8 ? */
-/* We probably ought to watch for partial register stalls on Generic32
- compilation setting as well. However in current implementation the
- partial register stalls are not eliminated very well - they can
- be introduced via subregs synthesized by combine and can happen
- in caller/callee saving sequences.
- Because this option pays back little on PPro based chips and is in conflict
- with partial reg. dependencies used by Athlon/P4 based chips, it is better
- to leave it off for generic32 for now. */
-const int x86_partial_reg_stall = m_PPRO;
-const int x86_partial_flag_reg_stall = m_GENERIC;
-const int x86_use_himode_fiop = m_386 | m_486 | m_K6_GEODE;
-const int x86_use_simode_fiop = ~(m_PPRO | m_ATHLON_K8 | m_PENT | m_GENERIC);
-const int x86_use_mov0 = m_K6;
-const int x86_use_cltd = ~(m_PENT | m_K6 | m_GENERIC);
-const int x86_read_modify_write = ~m_PENT;
-const int x86_read_modify = ~(m_PENT | m_PPRO);
-const int x86_split_long_moves = m_PPRO;
-const int x86_promote_QImode = m_K6_GEODE | m_PENT | m_386 | m_486 | m_ATHLON_K8 | m_GENERIC; /* m_PENT4 ? */
-const int x86_fast_prefix = ~(m_PENT | m_486 | m_386);
-const int x86_single_stringop = m_386 | m_PENT4 | m_NOCONA;
-const int x86_qimode_math = ~(0);
-const int x86_promote_qi_regs = 0;
-/* On PPro this flag is meant to avoid partial register stalls. Just like
- the x86_partial_reg_stall this option might be considered for Generic32
- if our scheme for avoiding partial stalls was more effective. */
-const int x86_himode_math = ~(m_PPRO);
-const int x86_promote_hi_regs = m_PPRO;
-const int x86_sub_esp_4 = m_ATHLON_K8 | m_PPRO | m_PENT4 | m_NOCONA | m_GENERIC;
-const int x86_sub_esp_8 = m_ATHLON_K8 | m_PPRO | m_386 | m_486 | m_PENT4 | m_NOCONA | m_GENERIC;
-const int x86_add_esp_4 = m_ATHLON_K8 | m_K6_GEODE | m_PENT4 | m_NOCONA | m_GENERIC;
-const int x86_add_esp_8 = m_ATHLON_K8 | m_PPRO | m_K6_GEODE | m_386 | m_486 | m_PENT4 | m_NOCONA | m_GENERIC;
-const int x86_integer_DFmode_moves = ~(m_ATHLON_K8 | m_PENT4 | m_NOCONA | m_PPRO | m_GENERIC | m_GEODE);
-const int x86_partial_reg_dependency = m_ATHLON_K8 | m_PENT4 | m_NOCONA | m_GENERIC;
-const int x86_memory_mismatch_stall = m_ATHLON_K8 | m_PENT4 | m_NOCONA | m_GENERIC;
-const int x86_accumulate_outgoing_args = m_ATHLON_K8 | m_PENT4 | m_NOCONA | m_PPRO | m_GENERIC;
-const int x86_prologue_using_move = m_ATHLON_K8 | m_PPRO | m_GENERIC;
-const int x86_epilogue_using_move = m_ATHLON_K8 | m_PPRO | m_GENERIC;
-const int x86_shift1 = ~m_486;
-const int x86_arch_always_fancy_math_387 = m_PENT | m_PPRO | m_ATHLON_K8 | m_PENT4 | m_NOCONA | m_GENERIC;
-/* In Generic model we have an conflict here in between PPro/Pentium4 based chips
- that thread 128bit SSE registers as single units versus K8 based chips that
- divide SSE registers to two 64bit halves.
- x86_sse_partial_reg_dependency promote all store destinations to be 128bit
- to allow register renaming on 128bit SSE units, but usually results in one
- extra microop on 64bit SSE units. Experimental results shows that disabling
- this option on P4 brings over 20% SPECfp regression, while enabling it on
- K8 brings roughly 2.4% regression that can be partly masked by careful scheduling
- of moves. */
-const int x86_sse_partial_reg_dependency = m_PENT4 | m_NOCONA | m_PPRO | m_GENERIC;
-/* Set for machines where the type and dependencies are resolved on SSE
- register parts instead of whole registers, so we may maintain just
- lower part of scalar values in proper format leaving the upper part
- undefined. */
-const int x86_sse_split_regs = m_ATHLON_K8;
-const int x86_sse_typeless_stores = m_ATHLON_K8;
-const int x86_sse_load0_by_pxor = m_PPRO | m_PENT4 | m_NOCONA;
-const int x86_use_ffreep = m_ATHLON_K8;
-const int x86_rep_movl_optimal = m_386 | m_PENT | m_PPRO | m_K6_GEODE;
-const int x86_use_incdec = ~(m_PENT4 | m_NOCONA | m_GENERIC);
-
-/* ??? Allowing interunit moves makes it all too easy for the compiler to put
- integer data in xmm registers. Which results in pretty abysmal code. */
-const int x86_inter_unit_moves = 0 /* ~(m_ATHLON_K8) */;
-
-const int x86_ext_80387_constants = m_K6_GEODE | m_ATHLON | m_PENT4 | m_NOCONA | m_PPRO | m_GENERIC32;
-/* Some CPU cores are not able to predict more than 4 branch instructions in
- the 16 byte window. */
-const int x86_four_jump_limit = m_PPRO | m_ATHLON_K8 | m_PENT4 | m_NOCONA | m_GENERIC;
-const int x86_schedule = m_PPRO | m_ATHLON_K8 | m_K6_GEODE | m_PENT | m_GENERIC;
-const int x86_use_bt = m_ATHLON_K8;
-/* Compare and exchange was added for 80486. */
-const int x86_cmpxchg = ~m_386;
-/* Compare and exchange 8 bytes was added for pentium. */
-const int x86_cmpxchg8b = ~(m_386 | m_486);
-/* Compare and exchange 16 bytes was added for nocona. */
-const int x86_cmpxchg16b = m_NOCONA;
-/* Exchange and add was added for 80486. */
-const int x86_xadd = ~m_386;
-/* Byteswap was added for 80486. */
-const int x86_bswap = ~m_386;
-const int x86_pad_returns = m_ATHLON_K8 | m_GENERIC;
+ (PPro/PENT4/NOCONA/CORE2/Athlon/K8). */
+#define m_GENERIC (m_GENERIC32 | m_GENERIC64)
+
+/* Feature tests against the various tunings. */
+unsigned int ix86_tune_features[X86_TUNE_LAST] = {
+ /* X86_TUNE_USE_LEAVE: Leave does not affect Nocona SPEC2000 results
+ negatively, so enabling for Generic64 seems like good code size
+ tradeoff. We can't enable it for 32bit generic because it does not
+ work well with PPro base chips. */
+ m_386 | m_K6_GEODE | m_ATHLON_K8_AMDFAM10 | m_CORE2 | m_GENERIC64,
+
+ /* X86_TUNE_PUSH_MEMORY */
+ m_386 | m_K6_GEODE | m_ATHLON_K8_AMDFAM10 | m_PENT4
+ | m_NOCONA | m_CORE2 | m_GENERIC,
+
+ /* X86_TUNE_ZERO_EXTEND_WITH_AND */
+ m_486 | m_PENT,
+
+ /* X86_TUNE_USE_BIT_TEST */
+ m_386,
+
+ /* X86_TUNE_UNROLL_STRLEN */
+ m_486 | m_PENT | m_PPRO | m_ATHLON_K8_AMDFAM10 | m_K6 | m_CORE2 | m_GENERIC,
+
+ /* X86_TUNE_DEEP_BRANCH_PREDICTION */
+ m_PPRO | m_K6_GEODE | m_ATHLON_K8_AMDFAM10 | m_PENT4 | m_GENERIC,
+
+ /* X86_TUNE_BRANCH_PREDICTION_HINTS: Branch hints were put in P4 based
+ on simulation result. But after P4 was made, no performance benefit
+ was observed with branch hints. It also increases the code size.
+ As a result, icc never generates branch hints. */
+ 0,
+
+ /* X86_TUNE_DOUBLE_WITH_ADD */
+ ~m_386,
+
+ /* X86_TUNE_USE_SAHF */
+ m_PPRO | m_K6_GEODE | m_K8 | m_AMDFAM10 | m_PENT4
+ | m_NOCONA | m_CORE2 | m_GENERIC,
+
+ /* X86_TUNE_MOVX: Enable to zero extend integer registers to avoid
+ partial dependencies. */
+ m_ATHLON_K8_AMDFAM10 | m_PPRO | m_PENT4 | m_NOCONA
+ | m_CORE2 | m_GENERIC | m_GEODE /* m_386 | m_K6 */,
+
+ /* X86_TUNE_PARTIAL_REG_STALL: We probably ought to watch for partial
+ register stalls on Generic32 compilation setting as well. However
+ in current implementation the partial register stalls are not eliminated
+ very well - they can be introduced via subregs synthesized by combine
+ and can happen in caller/callee saving sequences. Because this option
+ pays back little on PPro based chips and is in conflict with partial reg
+ dependencies used by Athlon/P4 based chips, it is better to leave it off
+ for generic32 for now. */
+ m_PPRO,
+
+ /* X86_TUNE_PARTIAL_FLAG_REG_STALL */
+ m_CORE2 | m_GENERIC,
+
+ /* X86_TUNE_USE_HIMODE_FIOP */
+ m_386 | m_486 | m_K6_GEODE,
+
+ /* X86_TUNE_USE_SIMODE_FIOP */
+ ~(m_PPRO | m_ATHLON_K8_AMDFAM10 | m_PENT | m_CORE2 | m_GENERIC),
+
+ /* X86_TUNE_USE_MOV0 */
+ m_K6,
+
+ /* X86_TUNE_USE_CLTD */
+ ~(m_PENT | m_K6 | m_CORE2 | m_GENERIC),
+
+ /* X86_TUNE_USE_XCHGB: Use xchgb %rh,%rl instead of rolw/rorw $8,rx. */
+ m_PENT4,
+
+ /* X86_TUNE_SPLIT_LONG_MOVES */
+ m_PPRO,
+
+ /* X86_TUNE_READ_MODIFY_WRITE */
+ ~m_PENT,
+
+ /* X86_TUNE_READ_MODIFY */
+ ~(m_PENT | m_PPRO),
+
+ /* X86_TUNE_PROMOTE_QIMODE */
+ m_K6_GEODE | m_PENT | m_386 | m_486 | m_ATHLON_K8_AMDFAM10 | m_CORE2
+ | m_GENERIC /* | m_PENT4 ? */,
+
+ /* X86_TUNE_FAST_PREFIX */
+ ~(m_PENT | m_486 | m_386),
+
+ /* X86_TUNE_SINGLE_STRINGOP */
+ m_386 | m_PENT4 | m_NOCONA,
+
+ /* X86_TUNE_QIMODE_MATH */
+ ~0,
+
+ /* X86_TUNE_HIMODE_MATH: On PPro this flag is meant to avoid partial
+ register stalls. Just like X86_TUNE_PARTIAL_REG_STALL this option
+ might be considered for Generic32 if our scheme for avoiding partial
+ stalls was more effective. */
+ ~m_PPRO,
+
+ /* X86_TUNE_PROMOTE_QI_REGS */
+ 0,
+
+ /* X86_TUNE_PROMOTE_HI_REGS */
+ m_PPRO,
+
+ /* X86_TUNE_ADD_ESP_4: Enable if add/sub is preferred over 1/2 push/pop. */
+ m_ATHLON_K8_AMDFAM10 | m_K6_GEODE | m_PENT4 | m_NOCONA | m_CORE2 | m_GENERIC,
+
+ /* X86_TUNE_ADD_ESP_8 */
+ m_ATHLON_K8_AMDFAM10 | m_PPRO | m_K6_GEODE | m_386
+ | m_486 | m_PENT4 | m_NOCONA | m_CORE2 | m_GENERIC,
+
+ /* X86_TUNE_SUB_ESP_4 */
+ m_ATHLON_K8_AMDFAM10 | m_PPRO | m_PENT4 | m_NOCONA | m_CORE2 | m_GENERIC,
+
+ /* X86_TUNE_SUB_ESP_8 */
+ m_ATHLON_K8_AMDFAM10 | m_PPRO | m_386 | m_486
+ | m_PENT4 | m_NOCONA | m_CORE2 | m_GENERIC,
+
+ /* X86_TUNE_INTEGER_DFMODE_MOVES: Enable if integer moves are preferred
+ for DFmode copies */
+ ~(m_ATHLON_K8_AMDFAM10 | m_PENT4 | m_NOCONA | m_PPRO | m_CORE2
+ | m_GENERIC | m_GEODE),
+
+ /* X86_TUNE_PARTIAL_REG_DEPENDENCY */
+ m_ATHLON_K8_AMDFAM10 | m_PENT4 | m_NOCONA | m_CORE2 | m_GENERIC,
+
+ /* X86_TUNE_SSE_PARTIAL_REG_DEPENDENCY: In the Generic model we have a
+ conflict here in between PPro/Pentium4 based chips that thread 128bit
+ SSE registers as single units versus K8 based chips that divide SSE
+ registers to two 64bit halves. This knob promotes all store destinations
+ to be 128bit to allow register renaming on 128bit SSE units, but usually
+ results in one extra microop on 64bit SSE units. Experimental results
+ shows that disabling this option on P4 brings over 20% SPECfp regression,
+ while enabling it on K8 brings roughly 2.4% regression that can be partly
+ masked by careful scheduling of moves. */
+ m_PENT4 | m_NOCONA | m_PPRO | m_CORE2 | m_GENERIC | m_AMDFAM10,
+
+ /* X86_TUNE_SSE_UNALIGNED_MOVE_OPTIMAL */
+ m_AMDFAM10,
+
+ /* X86_TUNE_SSE_SPLIT_REGS: Set for machines where the type and dependencies
+ are resolved on SSE register parts instead of whole registers, so we may
+ maintain just lower part of scalar values in proper format leaving the
+ upper part undefined. */
+ m_ATHLON_K8,
+
+ /* X86_TUNE_SSE_TYPELESS_STORES */
+ m_ATHLON_K8_AMDFAM10,
+
+ /* X86_TUNE_SSE_LOAD0_BY_PXOR */
+ m_PPRO | m_PENT4 | m_NOCONA,
+
+ /* X86_TUNE_MEMORY_MISMATCH_STALL */
+ m_ATHLON_K8_AMDFAM10 | m_PENT4 | m_NOCONA | m_CORE2 | m_GENERIC,
+
+ /* X86_TUNE_PROLOGUE_USING_MOVE */
+ m_ATHLON_K8 | m_PPRO | m_CORE2 | m_GENERIC,
+
+ /* X86_TUNE_EPILOGUE_USING_MOVE */
+ m_ATHLON_K8 | m_PPRO | m_CORE2 | m_GENERIC,
+
+ /* X86_TUNE_SHIFT1 */
+ ~m_486,
+
+ /* X86_TUNE_USE_FFREEP */
+ m_ATHLON_K8_AMDFAM10,
+
+ /* X86_TUNE_INTER_UNIT_MOVES */
+ ~(m_ATHLON_K8_AMDFAM10 | m_GENERIC),
+
+ /* X86_TUNE_FOUR_JUMP_LIMIT: Some CPU cores are not able to predict more
+ than 4 branch instructions in the 16 byte window. */
+ m_PPRO | m_ATHLON_K8_AMDFAM10 | m_PENT4 | m_NOCONA | m_CORE2 | m_GENERIC,
+
+ /* X86_TUNE_SCHEDULE */
+ m_PPRO | m_ATHLON_K8_AMDFAM10 | m_K6_GEODE | m_PENT | m_CORE2 | m_GENERIC,
+
+ /* X86_TUNE_USE_BT */
+ m_ATHLON_K8_AMDFAM10,
+
+ /* X86_TUNE_USE_INCDEC */
+ ~(m_PENT4 | m_NOCONA | m_GENERIC),
+
+ /* X86_TUNE_PAD_RETURNS */
+ m_ATHLON_K8_AMDFAM10 | m_CORE2 | m_GENERIC,
+
+ /* X86_TUNE_EXT_80387_CONSTANTS */
+ m_K6_GEODE | m_ATHLON_K8 | m_PENT4 | m_NOCONA | m_PPRO | m_CORE2 | m_GENERIC,
+
+ /* X86_TUNE_SHORTEN_X87_SSE */
+ ~m_K8,
+
+ /* X86_TUNE_AVOID_VECTOR_DECODE */
+ m_K8 | m_GENERIC64,
+
+ /* X86_TUNE_PROMOTE_HIMODE_IMUL: Modern CPUs have same latency for HImode
+ and SImode multiply, but 386 and 486 do HImode multiply faster. */
+ ~(m_386 | m_486),
+
+ /* X86_TUNE_SLOW_IMUL_IMM32_MEM: Imul of 32-bit constant and memory is
+ vector path on AMD machines. */
+ m_K8 | m_GENERIC64 | m_AMDFAM10,
+
+ /* X86_TUNE_SLOW_IMUL_IMM8: Imul of 8-bit constant is vector path on AMD
+ machines. */
+ m_K8 | m_GENERIC64 | m_AMDFAM10,
+
+ /* X86_TUNE_MOVE_M1_VIA_OR: On pentiums, it is faster to load -1 via OR
+ than a MOV. */
+ m_PENT,
+
+ /* X86_TUNE_NOT_UNPAIRABLE: NOT is not pairable on Pentium, while XOR is,
+ but one byte longer. */
+ m_PENT,
+
+ /* X86_TUNE_NOT_VECTORMODE: On AMD K6, NOT is vector decoded with memory
+ operand that cannot be represented using a modRM byte. The XOR
+ replacement is long decoded, so this split helps here as well. */
+ m_K6,
+};
+
+/* Feature tests against the various architecture variations. */
+unsigned int ix86_arch_features[X86_ARCH_LAST] = {
+ /* X86_ARCH_CMOVE */
+ m_PPRO | m_GEODE | m_ATHLON_K8_AMDFAM10 | m_PENT4 | m_NOCONA,
+
+ /* X86_ARCH_CMPXCHG: Compare and exchange was added for 80486. */
+ ~m_386,
+
+ /* X86_ARCH_CMPXCHG8B: Compare and exchange 8 bytes was added for pentium. */
+ ~(m_386 | m_486),
+
+ /* X86_ARCH_XADD: Exchange and add was added for 80486. */
+ ~m_386,
+
+ /* X86_ARCH_BSWAP: Byteswap was added for 80486. */
+ ~m_386,
+};
+
+static const unsigned int x86_accumulate_outgoing_args
+ = m_ATHLON_K8_AMDFAM10 | m_PENT4 | m_NOCONA | m_PPRO | m_CORE2 | m_GENERIC;
+
+static const unsigned int x86_arch_always_fancy_math_387
+ = m_PENT | m_PPRO | m_ATHLON_K8_AMDFAM10 | m_PENT4
+ | m_NOCONA | m_CORE2 | m_GENERIC;
+
+static enum stringop_alg stringop_alg = no_stringop;
/* In case the average insn count for single function invocation is
lower than this constant, emit fast (but longer) prologue and
FLOAT_REGS, FLOAT_REGS, FLOAT_REGS, FLOAT_REGS,
/* arg pointer */
NON_Q_REGS,
- /* flags, fpsr, fpcr, dirflag, frame */
- NO_REGS, NO_REGS, NO_REGS, NO_REGS, NON_Q_REGS,
+ /* flags, fpsr, fpcr, frame */
+ NO_REGS, NO_REGS, NO_REGS, NON_Q_REGS,
SSE_REGS, SSE_REGS, SSE_REGS, SSE_REGS, SSE_REGS, SSE_REGS,
SSE_REGS, SSE_REGS,
MMX_REGS, MMX_REGS, MMX_REGS, MMX_REGS, MMX_REGS, MMX_REGS,
{
0, 2, 1, 3, 6, 7, 4, 5, /* general regs */
12, 13, 14, 15, 16, 17, 18, 19, /* fp regs */
- -1, -1, -1, -1, -1, -1, /* arg, flags, fpsr, fpcr, dir, frame */
+ -1, -1, -1, -1, -1, /* arg, flags, fpsr, fpcr, frame */
21, 22, 23, 24, 25, 26, 27, 28, /* SSE */
29, 30, 31, 32, 33, 34, 35, 36, /* MMX */
-1, -1, -1, -1, -1, -1, -1, -1, /* extended integer registers */
FIRST_REX_INT_REG /*R8 */, FIRST_REX_INT_REG + 1 /*R9 */
};
+static int const x86_64_ms_abi_int_parameter_registers[4] =
+{
+ 2 /*RCX*/, 1 /*RDX*/,
+ FIRST_REX_INT_REG /*R8 */, FIRST_REX_INT_REG + 1 /*R9 */
+};
+
static int const x86_64_int_return_registers[4] =
{
- 0 /*RAX*/, 1 /*RDI*/, 5 /*RDI*/, 4 /*RSI*/
+ 0 /*RAX*/, 1 /*RDX*/, 5 /*RDI*/, 4 /*RSI*/
};
/* The "default" register map used in 64bit mode. */
{
0, 1, 2, 3, 4, 5, 6, 7, /* general regs */
33, 34, 35, 36, 37, 38, 39, 40, /* fp regs */
- -1, -1, -1, -1, -1, -1, /* arg, flags, fpsr, fpcr, dir, frame */
+ -1, -1, -1, -1, -1, /* arg, flags, fpsr, fpcr, frame */
17, 18, 19, 20, 21, 22, 23, 24, /* SSE */
41, 42, 43, 44, 45, 46, 47, 48, /* MMX */
8,9,10,11,12,13,14,15, /* extended integer registers */
{
0, 2, 1, 3, 6, 7, 5, 4, /* general regs */
11, 12, 13, 14, 15, 16, 17, 18, /* fp regs */
- -1, 9, -1, -1, -1, -1, /* arg, flags, fpsr, fpcr, dir, frame */
+ -1, 9, -1, -1, -1, /* arg, flags, fpsr, fpcr, frame */
21, 22, 23, 24, 25, 26, 27, 28, /* SSE registers */
29, 30, 31, 32, 33, 34, 35, 36, /* MMX registers */
-1, -1, -1, -1, -1, -1, -1, -1, /* extended integer registers */
/* Which cpu are we scheduling for. */
enum processor_type ix86_tune;
+
/* Which instruction set architecture to use. */
enum processor_type ix86_arch;
/* Prefix built by ASM_GENERATE_INTERNAL_LABEL. */
char internal_label_prefix[16];
int internal_label_prefix_len;
-\f
-static bool ix86_handle_option (size_t, const char *, int);
-static void output_pic_addr_const (FILE *, rtx, int);
-static void put_condition_code (enum rtx_code, enum machine_mode,
- int, int, FILE *);
-static const char *get_some_local_dynamic_name (void);
-static int get_some_local_dynamic_name_1 (rtx *, void *);
-static rtx ix86_expand_int_compare (enum rtx_code, rtx, rtx);
-static enum rtx_code ix86_prepare_fp_compare_args (enum rtx_code, rtx *,
- rtx *);
-static bool ix86_fixed_condition_code_regs (unsigned int *, unsigned int *);
-static enum machine_mode ix86_cc_modes_compatible (enum machine_mode,
- enum machine_mode);
-static rtx get_thread_pointer (int);
-static rtx legitimize_tls_address (rtx, enum tls_model, int);
-static void get_pc_thunk_name (char [32], unsigned int);
-static rtx gen_push (rtx);
-static int ix86_flags_dependent (rtx, rtx, enum attr_type);
-static int ix86_agi_dependent (rtx, rtx, enum attr_type);
-static struct machine_function * ix86_init_machine_status (void);
-static int ix86_split_to_parts (rtx, rtx *, enum machine_mode);
-static int ix86_nsaved_regs (void);
-static void ix86_emit_save_regs (void);
-static void ix86_emit_save_regs_using_mov (rtx, HOST_WIDE_INT);
-static void ix86_emit_restore_regs_using_mov (rtx, HOST_WIDE_INT, int);
-static void ix86_output_function_epilogue (FILE *, HOST_WIDE_INT);
-static HOST_WIDE_INT ix86_GOT_alias_set (void);
-static void ix86_adjust_counter (rtx, HOST_WIDE_INT);
-static rtx ix86_expand_aligntest (rtx, int);
-static void ix86_expand_strlensi_unroll_1 (rtx, rtx, rtx);
-static int ix86_issue_rate (void);
-static int ix86_adjust_cost (rtx, rtx, rtx, int);
-static int ia32_multipass_dfa_lookahead (void);
-static void ix86_init_mmx_sse_builtins (void);
-static rtx x86_this_parameter (tree);
-static void x86_output_mi_thunk (FILE *, tree, HOST_WIDE_INT,
- HOST_WIDE_INT, tree);
-static bool x86_can_output_mi_thunk (tree, HOST_WIDE_INT, HOST_WIDE_INT, tree);
-static void x86_file_start (void);
-static void ix86_reorg (void);
-static bool ix86_expand_carry_flag_compare (enum rtx_code, rtx, rtx, rtx*);
-static tree ix86_build_builtin_va_list (void);
-static void ix86_setup_incoming_varargs (CUMULATIVE_ARGS *, enum machine_mode,
- tree, int *, int);
-static tree ix86_gimplify_va_arg (tree, tree, tree *, tree *);
-static bool ix86_scalar_mode_supported_p (enum machine_mode);
-static bool ix86_vector_mode_supported_p (enum machine_mode);
-
-static int ix86_address_cost (rtx);
-static bool ix86_cannot_force_const_mem (rtx);
-static rtx ix86_delegitimize_address (rtx);
-
-static void i386_output_dwarf_dtprel (FILE *, int, rtx) ATTRIBUTE_UNUSED;
-
-struct builtin_description;
-static rtx ix86_expand_sse_comi (const struct builtin_description *,
- tree, rtx);
-static rtx ix86_expand_sse_compare (const struct builtin_description *,
- tree, rtx);
-static rtx ix86_expand_unop1_builtin (enum insn_code, tree, rtx);
-static rtx ix86_expand_unop_builtin (enum insn_code, tree, rtx, int);
-static rtx ix86_expand_binop_builtin (enum insn_code, tree, rtx);
-static rtx ix86_expand_store_builtin (enum insn_code, tree);
-static rtx safe_vector_operand (rtx, enum machine_mode);
-static rtx ix86_expand_fp_compare (enum rtx_code, rtx, rtx, rtx, rtx *, rtx *);
-static int ix86_fp_comparison_arithmetics_cost (enum rtx_code code);
-static int ix86_fp_comparison_fcomi_cost (enum rtx_code code);
-static int ix86_fp_comparison_sahf_cost (enum rtx_code code);
-static int ix86_fp_comparison_cost (enum rtx_code code);
-static unsigned int ix86_select_alt_pic_regnum (void);
-static int ix86_save_reg (unsigned int, int);
-static void ix86_compute_frame_layout (struct ix86_frame *);
-static int ix86_comp_type_attributes (tree, tree);
-static int ix86_function_regparm (tree, tree);
-const struct attribute_spec ix86_attribute_table[];
-static bool ix86_function_ok_for_sibcall (tree, tree);
-static tree ix86_handle_cconv_attribute (tree *, tree, tree, int, bool *);
-static int ix86_value_regno (enum machine_mode, tree, tree);
-static bool contains_128bit_aligned_vector_p (tree);
-static rtx ix86_struct_value_rtx (tree, int);
-static bool ix86_ms_bitfield_layout_p (tree);
-static tree ix86_handle_struct_attribute (tree *, tree, tree, int, bool *);
-static int extended_reg_mentioned_1 (rtx *, void *);
-static bool ix86_rtx_costs (rtx, int, int, int *);
-static int min_insn_size (rtx);
-static tree ix86_md_asm_clobbers (tree outputs, tree inputs, tree clobbers);
-static bool ix86_must_pass_in_stack (enum machine_mode mode, tree type);
-static bool ix86_pass_by_reference (CUMULATIVE_ARGS *, enum machine_mode,
- tree, bool);
-static void ix86_init_builtins (void);
-static rtx ix86_expand_builtin (tree, rtx, rtx, enum machine_mode, int);
-static const char *ix86_mangle_fundamental_type (tree);
-static tree ix86_stack_protect_fail (void);
-static rtx ix86_internal_arg_pointer (void);
-static void ix86_dwarf_handle_frame_unspec (const char *, rtx, int);
-
-/* This function is only used on Solaris. */
-static void i386_solaris_elf_named_section (const char *, unsigned int, tree)
- ATTRIBUTE_UNUSED;
/* Register class used for passing given 64bit part of the argument.
These represent classes as documented by the PS ABI, with the exception
use SF or DFmode move instead of DImode to avoid reformatting penalties.
Similarly we play games with INTEGERSI_CLASS to use cheaper SImode moves
- whenever possible (upper half does contain padding).
- */
+ whenever possible (upper half does contain padding). */
enum x86_64_reg_class
{
X86_64_NO_CLASS,
X86_64_COMPLEX_X87_CLASS,
X86_64_MEMORY_CLASS
};
-static const char * const x86_64_reg_class_name[] = {
+static const char * const x86_64_reg_class_name[] =
+{
"no", "integer", "integerSI", "sse", "sseSF", "sseDF",
"sseup", "x87", "x87up", "cplx87", "no"
};
/* Table of constants used by fldpi, fldln2, etc.... */
static REAL_VALUE_TYPE ext_80387_constants_table [5];
static bool ext_80387_constants_init = 0;
-static void init_ext_80387_constants (void);
-static bool ix86_in_large_data_p (tree) ATTRIBUTE_UNUSED;
-static void ix86_encode_section_info (tree, rtx, int) ATTRIBUTE_UNUSED;
-static void x86_64_elf_unique_section (tree decl, int reloc) ATTRIBUTE_UNUSED;
-static section *x86_64_elf_select_section (tree decl, int reloc,
- unsigned HOST_WIDE_INT align)
- ATTRIBUTE_UNUSED;
+
\f
-/* Initialize the GCC target structure. */
-#undef TARGET_ATTRIBUTE_TABLE
-#define TARGET_ATTRIBUTE_TABLE ix86_attribute_table
-#if TARGET_DLLIMPORT_DECL_ATTRIBUTES
-# undef TARGET_MERGE_DECL_ATTRIBUTES
-# define TARGET_MERGE_DECL_ATTRIBUTES merge_dllimport_decl_attributes
+static struct machine_function * ix86_init_machine_status (void);
+static rtx ix86_function_value (tree, tree, bool);
+static int ix86_function_regparm (tree, tree);
+static void ix86_compute_frame_layout (struct ix86_frame *);
+static bool ix86_expand_vector_init_one_nonzero (bool, enum machine_mode,
+ rtx, rtx, int);
+
+\f
+/* The svr4 ABI for the i386 says that records and unions are returned
+ in memory. */
+#ifndef DEFAULT_PCC_STRUCT_RETURN
+#define DEFAULT_PCC_STRUCT_RETURN 1
#endif
-#undef TARGET_COMP_TYPE_ATTRIBUTES
-#define TARGET_COMP_TYPE_ATTRIBUTES ix86_comp_type_attributes
+/* Implement TARGET_HANDLE_OPTION. */
-#undef TARGET_INIT_BUILTINS
-#define TARGET_INIT_BUILTINS ix86_init_builtins
-#undef TARGET_EXPAND_BUILTIN
-#define TARGET_EXPAND_BUILTIN ix86_expand_builtin
+static bool
+ix86_handle_option (size_t code, const char *arg ATTRIBUTE_UNUSED, int value)
+{
+ switch (code)
+ {
+ case OPT_m3dnow:
+ if (!value)
+ {
+ target_flags &= ~MASK_3DNOW_A;
+ target_flags_explicit |= MASK_3DNOW_A;
+ }
+ return true;
-#undef TARGET_ASM_FUNCTION_EPILOGUE
-#define TARGET_ASM_FUNCTION_EPILOGUE ix86_output_function_epilogue
+ case OPT_mmmx:
+ if (!value)
+ {
+ target_flags &= ~(MASK_3DNOW | MASK_3DNOW_A);
+ target_flags_explicit |= MASK_3DNOW | MASK_3DNOW_A;
+ }
+ return true;
-#undef TARGET_ENCODE_SECTION_INFO
-#ifndef SUBTARGET_ENCODE_SECTION_INFO
-#define TARGET_ENCODE_SECTION_INFO ix86_encode_section_info
-#else
-#define TARGET_ENCODE_SECTION_INFO SUBTARGET_ENCODE_SECTION_INFO
-#endif
+ case OPT_msse:
+ if (!value)
+ {
+ target_flags &= ~(MASK_SSE2 | MASK_SSE3 | MASK_SSSE3
+ | MASK_SSE4A);
+ target_flags_explicit |= (MASK_SSE2 | MASK_SSE3 | MASK_SSSE3
+ | MASK_SSE4A);
+ }
+ return true;
-#undef TARGET_ASM_OPEN_PAREN
-#define TARGET_ASM_OPEN_PAREN ""
-#undef TARGET_ASM_CLOSE_PAREN
-#define TARGET_ASM_CLOSE_PAREN ""
+ case OPT_msse2:
+ if (!value)
+ {
+ target_flags &= ~(MASK_SSE3 | MASK_SSSE3 | MASK_SSE4A);
+ target_flags_explicit |= MASK_SSE3 | MASK_SSSE3 | MASK_SSE4A;
+ }
+ return true;
-#undef TARGET_ASM_ALIGNED_HI_OP
-#define TARGET_ASM_ALIGNED_HI_OP ASM_SHORT
-#undef TARGET_ASM_ALIGNED_SI_OP
-#define TARGET_ASM_ALIGNED_SI_OP ASM_LONG
-#ifdef ASM_QUAD
-#undef TARGET_ASM_ALIGNED_DI_OP
-#define TARGET_ASM_ALIGNED_DI_OP ASM_QUAD
-#endif
+ case OPT_msse3:
+ if (!value)
+ {
+ target_flags &= ~(MASK_SSSE3 | MASK_SSE4A);
+ target_flags_explicit |= MASK_SSSE3 | MASK_SSE4A;
+ }
+ return true;
-#undef TARGET_ASM_UNALIGNED_HI_OP
-#define TARGET_ASM_UNALIGNED_HI_OP TARGET_ASM_ALIGNED_HI_OP
-#undef TARGET_ASM_UNALIGNED_SI_OP
-#define TARGET_ASM_UNALIGNED_SI_OP TARGET_ASM_ALIGNED_SI_OP
-#undef TARGET_ASM_UNALIGNED_DI_OP
-#define TARGET_ASM_UNALIGNED_DI_OP TARGET_ASM_ALIGNED_DI_OP
-
-#undef TARGET_SCHED_ADJUST_COST
-#define TARGET_SCHED_ADJUST_COST ix86_adjust_cost
-#undef TARGET_SCHED_ISSUE_RATE
-#define TARGET_SCHED_ISSUE_RATE ix86_issue_rate
-#undef TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD
-#define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD \
- ia32_multipass_dfa_lookahead
-
-#undef TARGET_FUNCTION_OK_FOR_SIBCALL
-#define TARGET_FUNCTION_OK_FOR_SIBCALL ix86_function_ok_for_sibcall
-
-#ifdef HAVE_AS_TLS
-#undef TARGET_HAVE_TLS
-#define TARGET_HAVE_TLS true
-#endif
-#undef TARGET_CANNOT_FORCE_CONST_MEM
-#define TARGET_CANNOT_FORCE_CONST_MEM ix86_cannot_force_const_mem
-#undef TARGET_USE_BLOCKS_FOR_CONSTANT_P
-#define TARGET_USE_BLOCKS_FOR_CONSTANT_P hook_bool_mode_rtx_true
-
-#undef TARGET_DELEGITIMIZE_ADDRESS
-#define TARGET_DELEGITIMIZE_ADDRESS ix86_delegitimize_address
-
-#undef TARGET_MS_BITFIELD_LAYOUT_P
-#define TARGET_MS_BITFIELD_LAYOUT_P ix86_ms_bitfield_layout_p
-
-#if TARGET_MACHO
-#undef TARGET_BINDS_LOCAL_P
-#define TARGET_BINDS_LOCAL_P darwin_binds_local_p
-#endif
-
-#undef TARGET_ASM_OUTPUT_MI_THUNK
-#define TARGET_ASM_OUTPUT_MI_THUNK x86_output_mi_thunk
-#undef TARGET_ASM_CAN_OUTPUT_MI_THUNK
-#define TARGET_ASM_CAN_OUTPUT_MI_THUNK x86_can_output_mi_thunk
-
-#undef TARGET_ASM_FILE_START
-#define TARGET_ASM_FILE_START x86_file_start
-
-#undef TARGET_DEFAULT_TARGET_FLAGS
-#define TARGET_DEFAULT_TARGET_FLAGS \
- (TARGET_DEFAULT \
- | TARGET_64BIT_DEFAULT \
- | TARGET_SUBTARGET_DEFAULT \
- | TARGET_TLS_DIRECT_SEG_REFS_DEFAULT)
-
-#undef TARGET_HANDLE_OPTION
-#define TARGET_HANDLE_OPTION ix86_handle_option
-
-#undef TARGET_RTX_COSTS
-#define TARGET_RTX_COSTS ix86_rtx_costs
-#undef TARGET_ADDRESS_COST
-#define TARGET_ADDRESS_COST ix86_address_cost
-
-#undef TARGET_FIXED_CONDITION_CODE_REGS
-#define TARGET_FIXED_CONDITION_CODE_REGS ix86_fixed_condition_code_regs
-#undef TARGET_CC_MODES_COMPATIBLE
-#define TARGET_CC_MODES_COMPATIBLE ix86_cc_modes_compatible
-
-#undef TARGET_MACHINE_DEPENDENT_REORG
-#define TARGET_MACHINE_DEPENDENT_REORG ix86_reorg
-
-#undef TARGET_BUILD_BUILTIN_VA_LIST
-#define TARGET_BUILD_BUILTIN_VA_LIST ix86_build_builtin_va_list
-
-#undef TARGET_MD_ASM_CLOBBERS
-#define TARGET_MD_ASM_CLOBBERS ix86_md_asm_clobbers
-
-#undef TARGET_PROMOTE_PROTOTYPES
-#define TARGET_PROMOTE_PROTOTYPES hook_bool_tree_true
-#undef TARGET_STRUCT_VALUE_RTX
-#define TARGET_STRUCT_VALUE_RTX ix86_struct_value_rtx
-#undef TARGET_SETUP_INCOMING_VARARGS
-#define TARGET_SETUP_INCOMING_VARARGS ix86_setup_incoming_varargs
-#undef TARGET_MUST_PASS_IN_STACK
-#define TARGET_MUST_PASS_IN_STACK ix86_must_pass_in_stack
-#undef TARGET_PASS_BY_REFERENCE
-#define TARGET_PASS_BY_REFERENCE ix86_pass_by_reference
-#undef TARGET_INTERNAL_ARG_POINTER
-#define TARGET_INTERNAL_ARG_POINTER ix86_internal_arg_pointer
-#undef TARGET_DWARF_HANDLE_FRAME_UNSPEC
-#define TARGET_DWARF_HANDLE_FRAME_UNSPEC ix86_dwarf_handle_frame_unspec
-
-#undef TARGET_GIMPLIFY_VA_ARG_EXPR
-#define TARGET_GIMPLIFY_VA_ARG_EXPR ix86_gimplify_va_arg
-
-#undef TARGET_SCALAR_MODE_SUPPORTED_P
-#define TARGET_SCALAR_MODE_SUPPORTED_P ix86_scalar_mode_supported_p
-
-#undef TARGET_VECTOR_MODE_SUPPORTED_P
-#define TARGET_VECTOR_MODE_SUPPORTED_P ix86_vector_mode_supported_p
-
-#ifdef HAVE_AS_TLS
-#undef TARGET_ASM_OUTPUT_DWARF_DTPREL
-#define TARGET_ASM_OUTPUT_DWARF_DTPREL i386_output_dwarf_dtprel
-#endif
-
-#ifdef SUBTARGET_INSERT_ATTRIBUTES
-#undef TARGET_INSERT_ATTRIBUTES
-#define TARGET_INSERT_ATTRIBUTES SUBTARGET_INSERT_ATTRIBUTES
-#endif
-
-#undef TARGET_MANGLE_FUNDAMENTAL_TYPE
-#define TARGET_MANGLE_FUNDAMENTAL_TYPE ix86_mangle_fundamental_type
-
-#undef TARGET_STACK_PROTECT_FAIL
-#define TARGET_STACK_PROTECT_FAIL ix86_stack_protect_fail
-
-#undef TARGET_FUNCTION_VALUE
-#define TARGET_FUNCTION_VALUE ix86_function_value
-
-struct gcc_target targetm = TARGET_INITIALIZER;
-
-\f
-/* The svr4 ABI for the i386 says that records and unions are returned
- in memory. */
-#ifndef DEFAULT_PCC_STRUCT_RETURN
-#define DEFAULT_PCC_STRUCT_RETURN 1
-#endif
-
-/* Implement TARGET_HANDLE_OPTION. */
-
-static bool
-ix86_handle_option (size_t code, const char *arg ATTRIBUTE_UNUSED, int value)
-{
- switch (code)
- {
- case OPT_m3dnow:
- if (!value)
- {
- target_flags &= ~MASK_3DNOW_A;
- target_flags_explicit |= MASK_3DNOW_A;
- }
- return true;
-
- case OPT_mmmx:
- if (!value)
- {
- target_flags &= ~(MASK_3DNOW | MASK_3DNOW_A);
- target_flags_explicit |= MASK_3DNOW | MASK_3DNOW_A;
- }
- return true;
-
- case OPT_msse:
- if (!value)
- {
- target_flags &= ~(MASK_SSE2 | MASK_SSE3);
- target_flags_explicit |= MASK_SSE2 | MASK_SSE3;
- }
- return true;
-
- case OPT_msse2:
- if (!value)
- {
- target_flags &= ~MASK_SSE3;
- target_flags_explicit |= MASK_SSE3;
- }
- return true;
+ case OPT_mssse3:
+ if (!value)
+ {
+ target_flags &= ~MASK_SSE4A;
+ target_flags_explicit |= MASK_SSE4A;
+ }
+ return true;
default:
return true;
{
int i;
int ix86_tune_defaulted = 0;
+ unsigned int ix86_arch_mask, ix86_tune_mask;
/* Comes from final.c -- no real reason to change it. */
#define MAX_CODE_ALIGN 16
{&pentium4_cost, 0, 0, 0, 0, 0, 0, 0},
{&k8_cost, 0, 0, 16, 7, 16, 7, 16},
{&nocona_cost, 0, 0, 0, 0, 0, 0, 0},
+ {&core2_cost, 0, 0, 16, 7, 16, 7, 16},
{&generic32_cost, 0, 0, 16, 7, 16, 7, 16},
- {&generic64_cost, 0, 0, 16, 7, 16, 7, 16}
+ {&generic64_cost, 0, 0, 16, 7, 16, 7, 16},
+ {&amdfam10_cost, 0, 0, 32, 7, 32, 7, 32}
};
static const char * const cpu_names[] = TARGET_CPU_DEFAULT_NAMES;
const enum processor_type processor;
const enum pta_flags
{
- PTA_SSE = 1,
- PTA_SSE2 = 2,
- PTA_SSE3 = 4,
- PTA_MMX = 8,
- PTA_PREFETCH_SSE = 16,
- PTA_3DNOW = 32,
- PTA_3DNOW_A = 64,
- PTA_64BIT = 128,
- PTA_SSSE3 = 256
+ PTA_SSE = 1 << 0,
+ PTA_SSE2 = 1 << 1,
+ PTA_SSE3 = 1 << 2,
+ PTA_MMX = 1 << 3,
+ PTA_PREFETCH_SSE = 1 << 4,
+ PTA_3DNOW = 1 << 5,
+ PTA_3DNOW_A = 1 << 6,
+ PTA_64BIT = 1 << 7,
+ PTA_SSSE3 = 1 << 8,
+ PTA_CX16 = 1 << 9,
+ PTA_POPCNT = 1 << 10,
+ PTA_ABM = 1 << 11,
+ PTA_SSE4A = 1 << 12,
+ PTA_NO_SAHF = 1 << 13
} flags;
}
const processor_alias_table[] =
{"prescott", PROCESSOR_NOCONA, PTA_SSE | PTA_SSE2 | PTA_SSE3
| PTA_MMX | PTA_PREFETCH_SSE},
{"nocona", PROCESSOR_NOCONA, PTA_SSE | PTA_SSE2 | PTA_SSE3 | PTA_64BIT
- | PTA_MMX | PTA_PREFETCH_SSE},
+ | PTA_MMX | PTA_PREFETCH_SSE
+ | PTA_CX16 | PTA_NO_SAHF},
+ {"core2", PROCESSOR_CORE2, PTA_SSE | PTA_SSE2 | PTA_SSE3 | PTA_SSSE3
+ | PTA_64BIT | PTA_MMX
+ | PTA_PREFETCH_SSE | PTA_CX16},
{"geode", PROCESSOR_GEODE, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW
| PTA_3DNOW_A},
{"k6", PROCESSOR_K6, PTA_MMX},
{"athlon-mp", PROCESSOR_ATHLON, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW
| PTA_3DNOW_A | PTA_SSE},
{"x86-64", PROCESSOR_K8, PTA_MMX | PTA_PREFETCH_SSE | PTA_64BIT
- | PTA_SSE | PTA_SSE2 },
+ | PTA_SSE | PTA_SSE2 | PTA_NO_SAHF},
{"k8", PROCESSOR_K8, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW | PTA_64BIT
- | PTA_3DNOW_A | PTA_SSE | PTA_SSE2},
- {"opteron", PROCESSOR_K8, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW | PTA_64BIT
- | PTA_3DNOW_A | PTA_SSE | PTA_SSE2},
- {"athlon64", PROCESSOR_K8, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW | PTA_64BIT
- | PTA_3DNOW_A | PTA_SSE | PTA_SSE2},
- {"athlon-fx", PROCESSOR_K8, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW | PTA_64BIT
- | PTA_3DNOW_A | PTA_SSE | PTA_SSE2},
+ | PTA_3DNOW_A | PTA_SSE | PTA_SSE2
+ | PTA_NO_SAHF},
+ {"opteron", PROCESSOR_K8, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW
+ | PTA_64BIT | PTA_3DNOW_A | PTA_SSE
+ | PTA_SSE2 | PTA_NO_SAHF},
+ {"athlon64", PROCESSOR_K8, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW
+ | PTA_64BIT | PTA_3DNOW_A | PTA_SSE
+ | PTA_SSE2 | PTA_NO_SAHF},
+ {"athlon-fx", PROCESSOR_K8, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW
+ | PTA_64BIT | PTA_3DNOW_A | PTA_SSE
+ | PTA_SSE2 | PTA_NO_SAHF},
+ {"amdfam10", PROCESSOR_AMDFAM10, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW
+ | PTA_64BIT | PTA_3DNOW_A | PTA_SSE
+ | PTA_SSE2 | PTA_SSE3 | PTA_POPCNT
+ | PTA_ABM | PTA_SSE4A | PTA_CX16},
+ {"barcelona", PROCESSOR_AMDFAM10, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW
+ | PTA_64BIT | PTA_3DNOW_A | PTA_SSE
+ | PTA_SSE2 | PTA_SSE3 | PTA_POPCNT
+ | PTA_ABM | PTA_SSE4A | PTA_CX16},
{"generic32", PROCESSOR_GENERIC32, 0 /* flags are only used for -march switch. */ },
{"generic64", PROCESSOR_GENERIC64, PTA_64BIT /* flags are only used for -march switch. */ },
};
ix86_tune_string = "generic32";
}
}
+ if (ix86_stringop_string)
+ {
+ if (!strcmp (ix86_stringop_string, "rep_byte"))
+ stringop_alg = rep_prefix_1_byte;
+ else if (!strcmp (ix86_stringop_string, "libcall"))
+ stringop_alg = libcall;
+ else if (!strcmp (ix86_stringop_string, "rep_4byte"))
+ stringop_alg = rep_prefix_4_byte;
+ else if (!strcmp (ix86_stringop_string, "rep_8byte"))
+ stringop_alg = rep_prefix_8_byte;
+ else if (!strcmp (ix86_stringop_string, "byte_loop"))
+ stringop_alg = loop_1_byte;
+ else if (!strcmp (ix86_stringop_string, "loop"))
+ stringop_alg = loop;
+ else if (!strcmp (ix86_stringop_string, "unrolled_loop"))
+ stringop_alg = unrolled_loop;
+ else
+ error ("bad value (%s) for -mstringop-strategy= switch", ix86_stringop_string);
+ }
if (!strcmp (ix86_tune_string, "x86-64"))
warning (OPT_Wdeprecated, "-mtune=x86-64 is deprecated. Use -mtune=k8 or "
"-mtune=generic instead as appropriate.");
ix86_cmodel = flag_pic ? CM_SMALL_PIC : CM_SMALL;
else if (!strcmp (ix86_cmodel_string, "medium"))
ix86_cmodel = flag_pic ? CM_MEDIUM_PIC : CM_MEDIUM;
+ else if (!strcmp (ix86_cmodel_string, "large"))
+ ix86_cmodel = flag_pic ? CM_LARGE_PIC : CM_LARGE;
else if (flag_pic)
- sorry ("code model %s not supported in PIC mode", ix86_cmodel_string);
+ error ("code model %s does not support PIC mode", ix86_cmodel_string);
else if (!strcmp (ix86_cmodel_string, "32"))
ix86_cmodel = CM_32;
else if (!strcmp (ix86_cmodel_string, "kernel") && !flag_pic)
ix86_cmodel = CM_KERNEL;
- else if (!strcmp (ix86_cmodel_string, "large") && !flag_pic)
- ix86_cmodel = CM_LARGE;
else
error ("bad value (%s) for -mcmodel= switch", ix86_cmodel_string);
}
else
{
- ix86_cmodel = CM_32;
- if (TARGET_64BIT)
+ /* For TARGET_64BIT_MS_ABI, force pic on, in order to enable the
+ use of rip-relative addressing. This eliminates fixups that
+ would otherwise be needed if this object is to be placed in a
+ DLL, and is essentially just as efficient as direct addressing. */
+ if (TARGET_64BIT_MS_ABI)
+ ix86_cmodel = CM_SMALL_PIC, flag_pic = 1;
+ else if (TARGET_64BIT)
ix86_cmodel = flag_pic ? CM_SMALL_PIC : CM_SMALL;
+ else
+ ix86_cmodel = CM_32;
}
if (ix86_asm_string != 0)
{
if ((TARGET_64BIT == 0) != (ix86_cmodel == CM_32))
error ("code model %qs not supported in the %s bit mode",
ix86_cmodel_string, TARGET_64BIT ? "64" : "32");
- if (ix86_cmodel == CM_LARGE)
- sorry ("code model %<large%> not supported yet");
if ((TARGET_64BIT != 0) != ((target_flags & MASK_64BIT) != 0))
sorry ("%i-bit mode not compiled in",
(target_flags & MASK_64BIT) ? 64 : 32);
target_flags |= MASK_SSSE3;
if (processor_alias_table[i].flags & PTA_PREFETCH_SSE)
x86_prefetch_sse = true;
+ if (processor_alias_table[i].flags & PTA_CX16)
+ x86_cmpxchg16b = true;
+ if (processor_alias_table[i].flags & PTA_POPCNT
+ && !(target_flags_explicit & MASK_POPCNT))
+ target_flags |= MASK_POPCNT;
+ if (processor_alias_table[i].flags & PTA_ABM
+ && !(target_flags_explicit & MASK_ABM))
+ target_flags |= MASK_ABM;
+ if (processor_alias_table[i].flags & PTA_SSE4A
+ && !(target_flags_explicit & MASK_SSE4A))
+ target_flags |= MASK_SSE4A;
+ if (!(TARGET_64BIT && (processor_alias_table[i].flags & PTA_NO_SAHF)))
+ x86_sahf = true;
if (TARGET_64BIT && !(processor_alias_table[i].flags & PTA_64BIT))
error ("CPU you selected does not support x86-64 "
"instruction set");
if (i == pta_size)
error ("bad value (%s) for -march= switch", ix86_arch_string);
+ ix86_arch_mask = 1u << ix86_arch;
+ for (i = 0; i < X86_ARCH_LAST; ++i)
+ ix86_arch_features[i] &= ix86_arch_mask;
+
for (i = 0; i < pta_size; i++)
if (! strcmp (ix86_tune_string, processor_alias_table[i].name))
{
if (i == pta_size)
error ("bad value (%s) for -mtune= switch", ix86_tune_string);
+ ix86_tune_mask = 1u << ix86_tune;
+ for (i = 0; i < X86_TUNE_LAST; ++i)
+ ix86_tune_features[i] &= ix86_tune_mask;
+
if (optimize_size)
ix86_cost = &size_cost;
else
/* Validate -mregparm= value. */
if (ix86_regparm_string)
{
+ if (TARGET_64BIT)
+ warning (0, "-mregparm is ignored in 64-bit mode");
i = atoi (ix86_regparm_string);
if (i < 0 || i > REGPARM_MAX)
error ("-mregparm=%d is not between 0 and %d", i, REGPARM_MAX);
else
ix86_regparm = i;
}
- else
- if (TARGET_64BIT)
- ix86_regparm = REGPARM_MAX;
+ if (TARGET_64BIT)
+ ix86_regparm = REGPARM_MAX;
/* If the user has provided any of the -malign-* options,
warn and use that value only if -falign-* is not set.
ix86_tls_dialect_string);
}
+ if (ix87_precision_string)
+ {
+ i = atoi (ix87_precision_string);
+ if (i != 32 && i != 64 && i != 80)
+ error ("pc%d is not valid precision setting (32, 64 or 80)", i);
+ }
+
/* Keep nonleaf frame pointers. */
if (flag_omit_frame_pointer)
target_flags &= ~MASK_OMIT_LEAF_FRAME_POINTER;
/* If the architecture always has an FPU, turn off NO_FANCY_MATH_387,
since the insns won't need emulation. */
- if (x86_arch_always_fancy_math_387 & (1 << ix86_arch))
+ if (x86_arch_always_fancy_math_387 & ix86_arch_mask)
target_flags &= ~MASK_NO_FANCY_MATH_387;
/* Likewise, if the target doesn't have a 387, or we've specified
if (TARGET_SSSE3)
target_flags |= MASK_SSE3;
+ /* Turn on SSE3 builtins for -msse4a. */
+ if (TARGET_SSE4A)
+ target_flags |= MASK_SSE3;
+
/* Turn on SSE2 builtins for -msse3. */
if (TARGET_SSE3)
target_flags |= MASK_SSE2;
if (TARGET_3DNOW)
target_flags |= MASK_MMX;
+ /* Turn on POPCNT builtins for -mabm. */
+ if (TARGET_ABM)
+ target_flags |= MASK_POPCNT;
+
if (TARGET_64BIT)
{
- if (TARGET_ALIGN_DOUBLE)
- error ("-malign-double makes no sense in the 64bit mode");
if (TARGET_RTD)
- error ("-mrtd calling convention not supported in the 64bit mode");
+ warning (0, "-mrtd is ignored in 64bit mode");
/* Enable by default the SSE and MMX builtins. Do allow the user to
explicitly disable any of these. In particular, disabling SSE and
MMX for kernel code is extremely useful. */
target_flags
- |= ((MASK_SSE2 | MASK_SSE | MASK_MMX | MASK_128BIT_LONG_DOUBLE)
+ |= ((MASK_SSE2 | MASK_SSE | MASK_MMX | TARGET_SUBTARGET64_DEFAULT)
& ~target_flags_explicit);
- }
+ }
else
{
/* i386 ABI does not specify red zone. It still makes sense to use it
error ("-msseregparm used without SSE enabled");
ix86_fpmath = TARGET_FPMATH_DEFAULT;
-
if (ix86_fpmath_string != 0)
{
if (! strcmp (ix86_fpmath_string, "387"))
if (!TARGET_80387)
target_flags &= ~MASK_FLOAT_RETURNS;
- if ((x86_accumulate_outgoing_args & TUNEMASK)
+ if ((x86_accumulate_outgoing_args & ix86_tune_mask)
&& !(target_flags_explicit & MASK_ACCUMULATE_OUTGOING_ARGS)
&& !optimize_size)
target_flags |= MASK_ACCUMULATE_OUTGOING_ARGS;
target_flags |= MASK_ACCUMULATE_OUTGOING_ARGS;
}
+ /* For sane SSE instruction set generation we need fcomi instruction.
+ It is safe to enable all CMOVE instructions. */
+ if (TARGET_SSE)
+ TARGET_CMOVE = 1;
+
/* Figure out what ASM_GENERATE_INTERNAL_LABEL builds as a prefix. */
{
char *p;
set_param_value ("l1-cache-line-size", ix86_cost->prefetch_block);
}
\f
-/* switch to the appropriate section for output of DECL.
+/* Return true if this goes in large data/bss. */
+
+static bool
+ix86_in_large_data_p (tree exp)
+{
+ if (ix86_cmodel != CM_MEDIUM && ix86_cmodel != CM_MEDIUM_PIC)
+ return false;
+
+ /* Functions are never large data. */
+ if (TREE_CODE (exp) == FUNCTION_DECL)
+ return false;
+
+ if (TREE_CODE (exp) == VAR_DECL && DECL_SECTION_NAME (exp))
+ {
+ const char *section = TREE_STRING_POINTER (DECL_SECTION_NAME (exp));
+ if (strcmp (section, ".ldata") == 0
+ || strcmp (section, ".lbss") == 0)
+ return true;
+ return false;
+ }
+ else
+ {
+ HOST_WIDE_INT size = int_size_in_bytes (TREE_TYPE (exp));
+
+ /* If this is an incomplete type with size 0, then we can't put it
+ in data because it might be too big when completed. */
+ if (!size || size > ix86_section_threshold)
+ return true;
+ }
+
+ return false;
+}
+
+/* Switch to the appropriate section for output of DECL.
DECL is either a `VAR_DECL' node or a constant of some sort.
RELOC indicates whether forming the initial value of DECL requires
link-time relocations. */
+static section * x86_64_elf_select_section (tree, int, unsigned HOST_WIDE_INT)
+ ATTRIBUTE_UNUSED;
+
static section *
x86_64_elf_select_section (tree decl, int reloc,
unsigned HOST_WIDE_INT align)
{
const char *sname = NULL;
unsigned int flags = SECTION_WRITE;
- switch (categorize_decl_for_section (decl, reloc, flag_pic))
+ switch (categorize_decl_for_section (decl, reloc))
{
case SECCAT_DATA:
sname = ".ldata";
RELOC indicates whether the initial value of EXP requires
link-time relocations. */
-static void
+static void ATTRIBUTE_UNUSED
x86_64_elf_unique_section (tree decl, int reloc)
{
if ((ix86_cmodel == CM_MEDIUM || ix86_cmodel == CM_MEDIUM_PIC)
/* We only need to use .gnu.linkonce if we don't have COMDAT groups. */
bool one_only = DECL_ONE_ONLY (decl) && !HAVE_COMDAT_GROUP;
- switch (categorize_decl_for_section (decl, reloc, flag_pic))
+ switch (categorize_decl_for_section (decl, reloc))
{
case SECCAT_DATA:
case SECCAT_DATA_REL:
fprintf (file, ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",
size, align / BITS_PER_UNIT);
}
+#endif
/* Utility function for targets to use in implementing
ASM_OUTPUT_ALIGNED_BSS. */
#endif /* ASM_DECLARE_OBJECT_NAME */
ASM_OUTPUT_SKIP (file, size ? size : 1);
}
-#endif
\f
void
optimization_options (int level, int size ATTRIBUTE_UNUSED)
#endif
}
\f
-/* Table of valid machine attributes. */
-const struct attribute_spec ix86_attribute_table[] =
-{
- /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */
- /* Stdcall attribute says callee is responsible for popping arguments
- if they are not variable. */
- { "stdcall", 0, 0, false, true, true, ix86_handle_cconv_attribute },
- /* Fastcall attribute says callee is responsible for popping arguments
- if they are not variable. */
- { "fastcall", 0, 0, false, true, true, ix86_handle_cconv_attribute },
- /* Cdecl attribute says the callee is a normal C declaration */
- { "cdecl", 0, 0, false, true, true, ix86_handle_cconv_attribute },
- /* Regparm attribute specifies how many integer arguments are to be
- passed in registers. */
- { "regparm", 1, 1, false, true, true, ix86_handle_cconv_attribute },
- /* Sseregparm attribute says we are using x86_64 calling conventions
- for FP arguments. */
- { "sseregparm", 0, 0, false, true, true, ix86_handle_cconv_attribute },
- /* force_align_arg_pointer says this function realigns the stack at entry. */
- { (const char *)&ix86_force_align_arg_pointer_string, 0, 0,
- false, true, true, ix86_handle_cconv_attribute },
-#if TARGET_DLLIMPORT_DECL_ATTRIBUTES
- { "dllimport", 0, 0, false, false, false, handle_dll_attribute },
- { "dllexport", 0, 0, false, false, false, handle_dll_attribute },
- { "shared", 0, 0, true, false, false, ix86_handle_shared_attribute },
-#endif
- { "ms_struct", 0, 0, false, false, false, ix86_handle_struct_attribute },
- { "gcc_struct", 0, 0, false, false, false, ix86_handle_struct_attribute },
-#ifdef SUBTARGET_ATTRIBUTE_TABLE
- SUBTARGET_ATTRIBUTE_TABLE,
-#endif
- { NULL, 0, 0, false, false, false, NULL }
-};
-
/* Decide whether we can make a sibling call to a function. DECL is the
declaration of the function being targeted by the call and EXP is the
CALL_EXPR representing the call. */
func = decl;
else
{
- func = TREE_TYPE (TREE_OPERAND (exp, 0));
+ func = TREE_TYPE (CALL_EXPR_FN (exp));
if (POINTER_TYPE_P (func))
func = TREE_TYPE (func);
}
tree type;
/* We're looking at the CALL_EXPR, we need the type of the function. */
- type = TREE_OPERAND (exp, 0); /* pointer expression */
+ type = CALL_EXPR_FN (exp); /* pointer expression */
type = TREE_TYPE (type); /* pointer type */
type = TREE_TYPE (type); /* function type */
}
}
-#if TARGET_DLLIMPORT_DECL_ATTRIBUTES
/* Dllimport'd functions are also called indirectly. */
- if (decl && DECL_DLLIMPORT_P (decl)
+ if (TARGET_DLLIMPORT_DECL_ATTRIBUTES
+ && decl && DECL_DLLIMPORT_P (decl)
&& ix86_function_regparm (TREE_TYPE (decl), NULL) >= 3)
return false;
-#endif
/* If we forced aligned the stack, then sibcalling would unalign the
stack, which may break the called function. */
if (TARGET_64BIT)
{
- warning (OPT_Wattributes, "%qs attribute ignored",
- IDENTIFIER_POINTER (name));
+ /* Do not warn when emulating the MS ABI. */
+ if (!TARGET_64BIT_MS_ABI)
+ warning (OPT_Wattributes, "%qs attribute ignored",
+ IDENTIFIER_POINTER (name));
*no_add_attrs = true;
return NULL_TREE;
}
{
tree attr;
int regparm = ix86_regparm;
- bool user_convention = false;
- if (!TARGET_64BIT)
+ if (TARGET_64BIT)
+ return regparm;
+
+ attr = lookup_attribute ("regparm", TYPE_ATTRIBUTES (type));
+ if (attr)
+ return TREE_INT_CST_LOW (TREE_VALUE (TREE_VALUE (attr)));
+
+ if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (type)))
+ return 2;
+
+ /* Use register calling convention for local functions when possible. */
+ if (decl && flag_unit_at_a_time && !profile_flag)
{
- attr = lookup_attribute ("regparm", TYPE_ATTRIBUTES (type));
- if (attr)
+ struct cgraph_local_info *i = cgraph_local_info (decl);
+ if (i && i->local)
{
- regparm = TREE_INT_CST_LOW (TREE_VALUE (TREE_VALUE (attr)));
- user_convention = true;
- }
+ int local_regparm, globals = 0, regno;
+ struct function *f;
- if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (type)))
- {
- regparm = 2;
- user_convention = true;
- }
-
- /* Use register calling convention for local functions when possible. */
- if (!TARGET_64BIT && !user_convention && decl
- && flag_unit_at_a_time && !profile_flag)
- {
- struct cgraph_local_info *i = cgraph_local_info (decl);
- if (i && i->local)
- {
- int local_regparm, globals = 0, regno;
+ /* Make sure no regparm register is taken by a
+ global register variable. */
+ for (local_regparm = 0; local_regparm < 3; local_regparm++)
+ if (global_regs[local_regparm])
+ break;
- /* Make sure no regparm register is taken by a global register
- variable. */
- for (local_regparm = 0; local_regparm < 3; local_regparm++)
- if (global_regs[local_regparm])
- break;
- /* We can't use regparm(3) for nested functions as these use
- static chain pointer in third argument. */
- if (local_regparm == 3
- && decl_function_context (decl)
- && !DECL_NO_STATIC_CHAIN (decl))
- local_regparm = 2;
- /* If the function realigns its stackpointer, the
- prologue will clobber %ecx. If we've already
- generated code for the callee, the callee
- DECL_STRUCT_FUNCTION is gone, so we fall back to
- scanning the attributes for the self-realigning
- property. */
- if ((DECL_STRUCT_FUNCTION (decl)
- && DECL_STRUCT_FUNCTION (decl)->machine->force_align_arg_pointer)
- || (!DECL_STRUCT_FUNCTION (decl)
- && lookup_attribute (ix86_force_align_arg_pointer_string,
- TYPE_ATTRIBUTES (TREE_TYPE (decl)))))
- local_regparm = 2;
- /* Each global register variable increases register preassure,
- so the more global reg vars there are, the smaller regparm
- optimization use, unless requested by the user explicitly. */
- for (regno = 0; regno < 6; regno++)
- if (global_regs[regno])
- globals++;
- local_regparm
- = globals < local_regparm ? local_regparm - globals : 0;
-
- if (local_regparm > regparm)
- regparm = local_regparm;
- }
+ /* We can't use regparm(3) for nested functions as these use
+ static chain pointer in third argument. */
+ if (local_regparm == 3
+ && decl_function_context (decl)
+ && !DECL_NO_STATIC_CHAIN (decl))
+ local_regparm = 2;
+
+ /* If the function realigns its stackpointer, the prologue will
+ clobber %ecx. If we've already generated code for the callee,
+ the callee DECL_STRUCT_FUNCTION is gone, so we fall back to
+ scanning the attributes for the self-realigning property. */
+ f = DECL_STRUCT_FUNCTION (decl);
+ if (local_regparm == 3
+ && (f ? !!f->machine->force_align_arg_pointer
+ : !!lookup_attribute (ix86_force_align_arg_pointer_string,
+ TYPE_ATTRIBUTES (TREE_TYPE (decl)))))
+ local_regparm = 2;
+
+ /* Each global register variable increases register preassure,
+ so the more global reg vars there are, the smaller regparm
+ optimization use, unless requested by the user explicitly. */
+ for (regno = 0; regno < 6; regno++)
+ if (global_regs[regno])
+ globals++;
+ local_regparm
+ = globals < local_regparm ? local_regparm - globals : 0;
+
+ if (local_regparm > regparm)
+ regparm = local_regparm;
}
}
+
return regparm;
}
-/* Return 1 or 2, if we can pass up to 8 SFmode (1) and DFmode (2) arguments
- in SSE registers for a function with the indicated TYPE and DECL.
- DECL may be NULL when calling function indirectly
- or considering a libcall. Otherwise return 0. */
+/* Return 1 or 2, if we can pass up to SSE_REGPARM_MAX SFmode (1) and
+ DFmode (2) arguments in SSE registers for a function with the
+ indicated TYPE and DECL. DECL may be NULL when calling function
+ indirectly or considering a libcall. Otherwise return 0. */
static int
ix86_function_sseregparm (tree type, tree decl)
{
+ gcc_assert (!TARGET_64BIT);
+
/* Use SSE registers to pass SFmode and DFmode arguments if requested
by the sseregparm attribute. */
if (TARGET_SSEREGPARM
- || (type
- && lookup_attribute ("sseregparm", TYPE_ATTRIBUTES (type))))
+ || (type && lookup_attribute ("sseregparm", TYPE_ATTRIBUTES (type))))
{
if (!TARGET_SSE)
{
return 2;
}
- /* For local functions, pass SFmode (and DFmode for SSE2) arguments
- in SSE registers even for 32-bit mode and not just 3, but up to
- 8 SSE arguments in registers. */
- if (!TARGET_64BIT && decl
- && TARGET_SSE_MATH && flag_unit_at_a_time && !profile_flag)
+ /* For local functions, pass up to SSE_REGPARM_MAX SFmode
+ (and DFmode for SSE2) arguments in SSE registers. */
+ if (decl && TARGET_SSE_MATH && flag_unit_at_a_time && !profile_flag)
{
struct cgraph_local_info *i = cgraph_local_info (decl);
if (i && i->local)
return REGNO_REG_SET_P (ENTRY_BLOCK_PTR->il.rtl->global_live_at_end, 0);
}
+/* Return true if TYPE has a variable argument list. */
+
+static bool
+type_has_variadic_args_p (tree type)
+{
+ tree n, t = TYPE_ARG_TYPES (type);
+
+ if (t == NULL)
+ return false;
+
+ while ((n = TREE_CHAIN (t)) != NULL)
+ t = n;
+
+ return TREE_VALUE (t) != void_type_node;
+}
+
/* Value is the number of bytes of arguments automatically
popped when returning from a subroutine call.
FUNDECL is the declaration node of the function (as a tree),
int
ix86_return_pops_args (tree fundecl, tree funtype, int size)
{
- int rtd = TARGET_RTD && (!fundecl || TREE_CODE (fundecl) != IDENTIFIER_NODE);
+ int rtd;
+
+ /* None of the 64-bit ABIs pop arguments. */
+ if (TARGET_64BIT)
+ return 0;
+
+ rtd = TARGET_RTD && (!fundecl || TREE_CODE (fundecl) != IDENTIFIER_NODE);
/* Cdecl functions override -mrtd, and never pop the stack. */
- if (! lookup_attribute ("cdecl", TYPE_ATTRIBUTES (funtype))) {
-
- /* Stdcall and fastcall functions will pop the stack if not
- variable args. */
- if (lookup_attribute ("stdcall", TYPE_ATTRIBUTES (funtype))
- || lookup_attribute ("fastcall", TYPE_ATTRIBUTES (funtype)))
- rtd = 1;
-
- if (rtd
- && (TYPE_ARG_TYPES (funtype) == NULL_TREE
- || (TREE_VALUE (tree_last (TYPE_ARG_TYPES (funtype)))
- == void_type_node)))
- return size;
- }
+ if (! lookup_attribute ("cdecl", TYPE_ATTRIBUTES (funtype)))
+ {
+ /* Stdcall and fastcall functions will pop the stack if not
+ variable args. */
+ if (lookup_attribute ("stdcall", TYPE_ATTRIBUTES (funtype))
+ || lookup_attribute ("fastcall", TYPE_ATTRIBUTES (funtype)))
+ rtd = 1;
+
+ if (rtd && ! type_has_variadic_args_p (funtype))
+ return size;
+ }
/* Lose any fake structure return argument if it is passed on the stack. */
if (aggregate_value_p (TREE_TYPE (funtype), fundecl)
- && !TARGET_64BIT
&& !KEEP_AGGREGATE_RETURN_POINTER)
{
int nregs = ix86_function_regparm (funtype, fundecl);
-
- if (!nregs)
+ if (nregs == 0)
return GET_MODE_SIZE (Pmode);
}
ix86_function_arg_regno_p (int regno)
{
int i;
+ const int *parm_regs;
+
if (!TARGET_64BIT)
- return (regno < REGPARM_MAX
- || (TARGET_MMX && MMX_REGNO_P (regno)
- && (regno < FIRST_MMX_REG + MMX_REGPARM_MAX))
- || (TARGET_SSE && SSE_REGNO_P (regno)
- && (regno < FIRST_SSE_REG + SSE_REGPARM_MAX)));
-
- if (TARGET_SSE && SSE_REGNO_P (regno)
- && (regno < FIRST_SSE_REG + SSE_REGPARM_MAX))
- return true;
+ {
+ if (TARGET_MACHO)
+ return (regno < REGPARM_MAX
+ || (TARGET_SSE && SSE_REGNO_P (regno) && !fixed_regs[regno]));
+ else
+ return (regno < REGPARM_MAX
+ || (TARGET_MMX && MMX_REGNO_P (regno)
+ && (regno < FIRST_MMX_REG + MMX_REGPARM_MAX))
+ || (TARGET_SSE && SSE_REGNO_P (regno)
+ && (regno < FIRST_SSE_REG + SSE_REGPARM_MAX)));
+ }
+
+ if (TARGET_MACHO)
+ {
+ if (SSE_REGNO_P (regno) && TARGET_SSE)
+ return true;
+ }
+ else
+ {
+ if (TARGET_SSE && SSE_REGNO_P (regno)
+ && (regno < FIRST_SSE_REG + SSE_REGPARM_MAX))
+ return true;
+ }
+
/* RAX is used as hidden argument to va_arg functions. */
- if (!regno)
+ if (!TARGET_64BIT_MS_ABI && regno == 0)
return true;
+
+ if (TARGET_64BIT_MS_ABI)
+ parm_regs = x86_64_ms_abi_int_parameter_registers;
+ else
+ parm_regs = x86_64_int_parameter_registers;
for (i = 0; i < REGPARM_MAX; i++)
- if (regno == x86_64_int_parameter_registers[i])
+ if (regno == parm_regs[i])
return true;
return false;
}
rtx libname, /* SYMBOL_REF of library name or 0 */
tree fndecl)
{
- static CUMULATIVE_ARGS zero_cum;
- tree param, next_param;
-
- if (TARGET_DEBUG_ARG)
- {
- fprintf (stderr, "\ninit_cumulative_args (");
- if (fntype)
- fprintf (stderr, "fntype code = %s, ret code = %s",
- tree_code_name[(int) TREE_CODE (fntype)],
- tree_code_name[(int) TREE_CODE (TREE_TYPE (fntype))]);
- else
- fprintf (stderr, "no fntype");
-
- if (libname)
- fprintf (stderr, ", libname = %s", XSTR (libname, 0));
- }
-
- *cum = zero_cum;
+ memset (cum, 0, sizeof (*cum));
/* Set up the number of registers to use for passing arguments. */
cum->nregs = ix86_regparm;
cum->mmx_nregs = MMX_REGPARM_MAX;
cum->warn_sse = true;
cum->warn_mmx = true;
- cum->maybe_vaarg = false;
+ cum->maybe_vaarg = (fntype ? type_has_variadic_args_p (fntype) : !libname);
- /* Use ecx and edx registers if function has fastcall attribute,
- else look for regparm information. */
- if (fntype && !TARGET_64BIT)
+ if (!TARGET_64BIT)
{
- if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (fntype)))
+ /* If there are variable arguments, then we won't pass anything
+ in registers in 32-bit mode. */
+ if (cum->maybe_vaarg)
{
- cum->nregs = 2;
- cum->fastcall = 1;
+ cum->nregs = 0;
+ cum->sse_nregs = 0;
+ cum->mmx_nregs = 0;
+ cum->warn_sse = 0;
+ cum->warn_mmx = 0;
+ return;
}
- else
- cum->nregs = ix86_function_regparm (fntype, fndecl);
- }
-
- /* Set up the number of SSE registers used for passing SFmode
- and DFmode arguments. Warn for mismatching ABI. */
- cum->float_in_sse = ix86_function_sseregparm (fntype, fndecl);
- /* Determine if this function has variable arguments. This is
- indicated by the last argument being 'void_type_mode' if there
- are no variable arguments. If there are variable arguments, then
- we won't pass anything in registers in 32-bit mode. */
-
- if (cum->nregs || cum->mmx_nregs || cum->sse_nregs)
- {
- for (param = (fntype) ? TYPE_ARG_TYPES (fntype) : 0;
- param != 0; param = next_param)
+ /* Use ecx and edx registers if function has fastcall attribute,
+ else look for regparm information. */
+ if (fntype)
{
- next_param = TREE_CHAIN (param);
- if (next_param == 0 && TREE_VALUE (param) != void_type_node)
+ if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (fntype)))
{
- if (!TARGET_64BIT)
- {
- cum->nregs = 0;
- cum->sse_nregs = 0;
- cum->mmx_nregs = 0;
- cum->warn_sse = 0;
- cum->warn_mmx = 0;
- cum->fastcall = 0;
- cum->float_in_sse = 0;
- }
- cum->maybe_vaarg = true;
+ cum->nregs = 2;
+ cum->fastcall = 1;
}
+ else
+ cum->nregs = ix86_function_regparm (fntype, fndecl);
}
- }
- if ((!fntype && !libname)
- || (fntype && !TYPE_ARG_TYPES (fntype)))
- cum->maybe_vaarg = true;
- if (TARGET_DEBUG_ARG)
- fprintf (stderr, ", nregs=%d )\n", cum->nregs);
-
- return;
+ /* Set up the number of SSE registers used for passing SFmode
+ and DFmode arguments. Warn for mismatching ABI. */
+ cum->float_in_sse = ix86_function_sseregparm (fntype, fndecl);
+ }
}
/* Return the "natural" mode for TYPE. In most cases, this is just TYPE_MODE.
rtx ret;
n = classify_argument (mode, type, class, 0);
- if (TARGET_DEBUG_ARG)
- {
- if (!n)
- fprintf (stderr, "Memory class\n");
- else
- {
- fprintf (stderr, "Classes:");
- for (i = 0; i < n; i++)
- {
- fprintf (stderr, " %s", x86_64_reg_class_name[class[i]]);
- }
- fprintf (stderr, "\n");
- }
- }
if (!n)
return NULL;
if (!examine_argument (mode, type, in_return, &needed_intregs,
if (n == 2 && class[0] == X86_64_SSE_CLASS && class[1] == X86_64_SSEUP_CLASS
&& mode != BLKmode)
return gen_rtx_REG (mode, SSE_REGNO (sse_regno));
+
if (n == 2
&& class[0] == X86_64_X87_CLASS && class[1] == X86_64_X87UP_CLASS)
return gen_rtx_REG (XFmode, FIRST_STACK_REG);
return ret;
}
-/* Update the data in CUM to advance over an argument
- of mode MODE and data type TYPE.
- (TYPE is null for libcalls where that information may not be available.) */
+/* Update the data in CUM to advance over an argument of mode MODE
+ and data type TYPE. (TYPE is null for libcalls where that information
+ may not be available.) */
-void
-function_arg_advance (CUMULATIVE_ARGS *cum, enum machine_mode mode,
- tree type, int named)
+static void
+function_arg_advance_32 (CUMULATIVE_ARGS *cum, enum machine_mode mode,
+ tree type, HOST_WIDE_INT bytes, HOST_WIDE_INT words)
{
- int bytes =
- (mode == BLKmode) ? int_size_in_bytes (type) : (int) GET_MODE_SIZE (mode);
- int words = (bytes + UNITS_PER_WORD - 1) / UNITS_PER_WORD;
+ switch (mode)
+ {
+ default:
+ break;
- if (type)
- mode = type_natural_mode (type);
+ case BLKmode:
+ if (bytes < 0)
+ break;
+ /* FALLTHRU */
- if (TARGET_DEBUG_ARG)
- fprintf (stderr, "function_adv (sz=%d, wds=%2d, nregs=%d, ssenregs=%d, "
- "mode=%s, named=%d)\n\n",
- words, cum->words, cum->nregs, cum->sse_nregs,
- GET_MODE_NAME (mode), named);
+ case DImode:
+ case SImode:
+ case HImode:
+ case QImode:
+ cum->words += words;
+ cum->nregs -= words;
+ cum->regno += words;
- if (TARGET_64BIT)
- {
- int int_nregs, sse_nregs;
- if (!examine_argument (mode, type, 0, &int_nregs, &sse_nregs))
- cum->words += words;
- else if (sse_nregs <= cum->sse_nregs && int_nregs <= cum->nregs)
+ if (cum->nregs <= 0)
{
- cum->nregs -= int_nregs;
- cum->sse_nregs -= sse_nregs;
- cum->regno += int_nregs;
- cum->sse_regno += sse_nregs;
+ cum->nregs = 0;
+ cum->regno = 0;
}
- else
- cum->words += words;
- }
- else
- {
- switch (mode)
- {
- default:
- break;
-
- case BLKmode:
- if (bytes < 0)
- break;
- /* FALLTHRU */
-
- case DImode:
- case SImode:
- case HImode:
- case QImode:
- cum->words += words;
- cum->nregs -= words;
- cum->regno += words;
-
- if (cum->nregs <= 0)
- {
- cum->nregs = 0;
- cum->regno = 0;
- }
- break;
+ break;
- case DFmode:
- if (cum->float_in_sse < 2)
- break;
- case SFmode:
- if (cum->float_in_sse < 1)
- break;
- /* FALLTHRU */
+ case DFmode:
+ if (cum->float_in_sse < 2)
+ break;
+ case SFmode:
+ if (cum->float_in_sse < 1)
+ break;
+ /* FALLTHRU */
- case TImode:
- case V16QImode:
- case V8HImode:
- case V4SImode:
- case V2DImode:
- case V4SFmode:
- case V2DFmode:
- if (!type || !AGGREGATE_TYPE_P (type))
+ case TImode:
+ case V16QImode:
+ case V8HImode:
+ case V4SImode:
+ case V2DImode:
+ case V4SFmode:
+ case V2DFmode:
+ if (!type || !AGGREGATE_TYPE_P (type))
+ {
+ cum->sse_words += words;
+ cum->sse_nregs -= 1;
+ cum->sse_regno += 1;
+ if (cum->sse_nregs <= 0)
{
- cum->sse_words += words;
- cum->sse_nregs -= 1;
- cum->sse_regno += 1;
- if (cum->sse_nregs <= 0)
- {
- cum->sse_nregs = 0;
- cum->sse_regno = 0;
- }
+ cum->sse_nregs = 0;
+ cum->sse_regno = 0;
}
- break;
+ }
+ break;
- case V8QImode:
- case V4HImode:
- case V2SImode:
- case V2SFmode:
- if (!type || !AGGREGATE_TYPE_P (type))
+ case V8QImode:
+ case V4HImode:
+ case V2SImode:
+ case V2SFmode:
+ if (!type || !AGGREGATE_TYPE_P (type))
+ {
+ cum->mmx_words += words;
+ cum->mmx_nregs -= 1;
+ cum->mmx_regno += 1;
+ if (cum->mmx_nregs <= 0)
{
- cum->mmx_words += words;
- cum->mmx_nregs -= 1;
- cum->mmx_regno += 1;
- if (cum->mmx_nregs <= 0)
- {
- cum->mmx_nregs = 0;
- cum->mmx_regno = 0;
- }
+ cum->mmx_nregs = 0;
+ cum->mmx_regno = 0;
}
- break;
}
+ break;
}
}
+static void
+function_arg_advance_64 (CUMULATIVE_ARGS *cum, enum machine_mode mode,
+ tree type, HOST_WIDE_INT words)
+{
+ int int_nregs, sse_nregs;
+
+ if (!examine_argument (mode, type, 0, &int_nregs, &sse_nregs))
+ cum->words += words;
+ else if (sse_nregs <= cum->sse_nregs && int_nregs <= cum->nregs)
+ {
+ cum->nregs -= int_nregs;
+ cum->sse_nregs -= sse_nregs;
+ cum->regno += int_nregs;
+ cum->sse_regno += sse_nregs;
+ }
+ else
+ cum->words += words;
+}
+
+static void
+function_arg_advance_ms_64 (CUMULATIVE_ARGS *cum, HOST_WIDE_INT bytes,
+ HOST_WIDE_INT words)
+{
+ /* Otherwise, this should be passed indirect. */
+ gcc_assert (bytes == 1 || bytes == 2 || bytes == 4 || bytes == 8);
+
+ cum->words += words;
+ if (cum->nregs > 0)
+ {
+ cum->nregs -= 1;
+ cum->regno += 1;
+ }
+}
+
+void
+function_arg_advance (CUMULATIVE_ARGS *cum, enum machine_mode mode,
+ tree type, int named ATTRIBUTE_UNUSED)
+{
+ HOST_WIDE_INT bytes, words;
+
+ if (mode == BLKmode)
+ bytes = int_size_in_bytes (type);
+ else
+ bytes = GET_MODE_SIZE (mode);
+ words = (bytes + UNITS_PER_WORD - 1) / UNITS_PER_WORD;
+
+ if (type)
+ mode = type_natural_mode (type);
+
+ if (TARGET_64BIT_MS_ABI)
+ function_arg_advance_ms_64 (cum, bytes, words);
+ else if (TARGET_64BIT)
+ function_arg_advance_64 (cum, mode, type, words);
+ else
+ function_arg_advance_32 (cum, mode, type, bytes, words);
+}
+
/* Define where to put the arguments to a function.
Value is zero to push the argument on the stack,
or a hard register in which to store the argument.
NAMED is nonzero if this argument is a named parameter
(otherwise it is an extra parameter matching an ellipsis). */
-rtx
-function_arg (CUMULATIVE_ARGS *cum, enum machine_mode orig_mode,
- tree type, int named)
+static rtx
+function_arg_32 (CUMULATIVE_ARGS *cum, enum machine_mode mode,
+ enum machine_mode orig_mode, tree type,
+ HOST_WIDE_INT bytes, HOST_WIDE_INT words)
{
- enum machine_mode mode = orig_mode;
- rtx ret = NULL_RTX;
- int bytes =
- (mode == BLKmode) ? int_size_in_bytes (type) : (int) GET_MODE_SIZE (mode);
- int words = (bytes + UNITS_PER_WORD - 1) / UNITS_PER_WORD;
static bool warnedsse, warnedmmx;
- /* To simplify the code below, represent vector types with a vector mode
- even if MMX/SSE are not active. */
- if (type && TREE_CODE (type) == VECTOR_TYPE)
- mode = type_natural_mode (type);
-
- /* Handle a hidden AL argument containing number of registers for varargs
- x86-64 functions. For i386 ABI just return constm1_rtx to avoid
- any AL settings. */
+ /* Avoid the AL settings for the Unix64 ABI. */
if (mode == VOIDmode)
+ return constm1_rtx;
+
+ switch (mode)
{
- if (TARGET_64BIT)
- return GEN_INT (cum->maybe_vaarg
- ? (cum->sse_nregs < 0
- ? SSE_REGPARM_MAX
- : cum->sse_regno)
- : -1);
- else
- return constm1_rtx;
- }
- if (TARGET_64BIT)
- ret = construct_container (mode, orig_mode, type, 0, cum->nregs,
- cum->sse_nregs,
- &x86_64_int_parameter_registers [cum->regno],
- cum->sse_regno);
- else
- switch (mode)
- {
- /* For now, pass fp/complex values on the stack. */
- default:
+ default:
+ break;
+
+ case BLKmode:
+ if (bytes < 0)
break;
+ /* FALLTHRU */
+ case DImode:
+ case SImode:
+ case HImode:
+ case QImode:
+ if (words <= cum->nregs)
+ {
+ int regno = cum->regno;
- case BLKmode:
- if (bytes < 0)
- break;
- /* FALLTHRU */
- case DImode:
- case SImode:
- case HImode:
- case QImode:
- if (words <= cum->nregs)
- {
- int regno = cum->regno;
+ /* Fastcall allocates the first two DWORD (SImode) or
+ smaller arguments to ECX and EDX. */
+ if (cum->fastcall)
+ {
+ if (mode == BLKmode || mode == DImode)
+ break;
- /* Fastcall allocates the first two DWORD (SImode) or
- smaller arguments to ECX and EDX. */
- if (cum->fastcall)
- {
- if (mode == BLKmode || mode == DImode)
- break;
+ /* ECX not EAX is the first allocated register. */
+ if (regno == 0)
+ regno = 2;
+ }
+ return gen_rtx_REG (mode, regno);
+ }
+ break;
- /* ECX not EAX is the first allocated register. */
- if (regno == 0)
- regno = 2;
- }
- ret = gen_rtx_REG (mode, regno);
- }
- break;
- case DFmode:
- if (cum->float_in_sse < 2)
- break;
- case SFmode:
- if (cum->float_in_sse < 1)
- break;
- /* FALLTHRU */
- case TImode:
- case V16QImode:
- case V8HImode:
- case V4SImode:
- case V2DImode:
- case V4SFmode:
- case V2DFmode:
- if (!type || !AGGREGATE_TYPE_P (type))
- {
- if (!TARGET_SSE && !warnedsse && cum->warn_sse)
- {
- warnedsse = true;
- warning (0, "SSE vector argument without SSE enabled "
- "changes the ABI");
- }
- if (cum->sse_nregs)
- ret = gen_reg_or_parallel (mode, orig_mode,
- cum->sse_regno + FIRST_SSE_REG);
- }
+ case DFmode:
+ if (cum->float_in_sse < 2)
break;
- case V8QImode:
- case V4HImode:
- case V2SImode:
- case V2SFmode:
- if (!type || !AGGREGATE_TYPE_P (type))
- {
- if (!TARGET_MMX && !warnedmmx && cum->warn_mmx)
- {
- warnedmmx = true;
- warning (0, "MMX vector argument without MMX enabled "
- "changes the ABI");
- }
- if (cum->mmx_nregs)
- ret = gen_reg_or_parallel (mode, orig_mode,
- cum->mmx_regno + FIRST_MMX_REG);
- }
+ case SFmode:
+ if (cum->float_in_sse < 1)
break;
- }
+ /* FALLTHRU */
+ case TImode:
+ case V16QImode:
+ case V8HImode:
+ case V4SImode:
+ case V2DImode:
+ case V4SFmode:
+ case V2DFmode:
+ if (!type || !AGGREGATE_TYPE_P (type))
+ {
+ if (!TARGET_SSE && !warnedsse && cum->warn_sse)
+ {
+ warnedsse = true;
+ warning (0, "SSE vector argument without SSE enabled "
+ "changes the ABI");
+ }
+ if (cum->sse_nregs)
+ return gen_reg_or_parallel (mode, orig_mode,
+ cum->sse_regno + FIRST_SSE_REG);
+ }
+ break;
- if (TARGET_DEBUG_ARG)
- {
- fprintf (stderr,
- "function_arg (size=%d, wds=%2d, nregs=%d, mode=%4s, named=%d, ",
- words, cum->words, cum->nregs, GET_MODE_NAME (mode), named);
+ case V8QImode:
+ case V4HImode:
+ case V2SImode:
+ case V2SFmode:
+ if (!type || !AGGREGATE_TYPE_P (type))
+ {
+ if (!TARGET_MMX && !warnedmmx && cum->warn_mmx)
+ {
+ warnedmmx = true;
+ warning (0, "MMX vector argument without MMX enabled "
+ "changes the ABI");
+ }
+ if (cum->mmx_nregs)
+ return gen_reg_or_parallel (mode, orig_mode,
+ cum->mmx_regno + FIRST_MMX_REG);
+ }
+ break;
+ }
+
+ return NULL_RTX;
+}
- if (ret)
- print_simple_rtl (stderr, ret);
+static rtx
+function_arg_64 (CUMULATIVE_ARGS *cum, enum machine_mode mode,
+ enum machine_mode orig_mode, tree type)
+{
+ /* Handle a hidden AL argument containing number of registers
+ for varargs x86-64 functions. */
+ if (mode == VOIDmode)
+ return GEN_INT (cum->maybe_vaarg
+ ? (cum->sse_nregs < 0
+ ? SSE_REGPARM_MAX
+ : cum->sse_regno)
+ : -1);
+
+ return construct_container (mode, orig_mode, type, 0, cum->nregs,
+ cum->sse_nregs,
+ &x86_64_int_parameter_registers [cum->regno],
+ cum->sse_regno);
+}
+
+static rtx
+function_arg_ms_64 (CUMULATIVE_ARGS *cum, enum machine_mode mode,
+ enum machine_mode orig_mode, int named)
+{
+ unsigned int regno;
+
+ /* Avoid the AL settings for the Unix64 ABI. */
+ if (mode == VOIDmode)
+ return constm1_rtx;
+
+ /* If we've run out of registers, it goes on the stack. */
+ if (cum->nregs == 0)
+ return NULL_RTX;
+
+ regno = x86_64_ms_abi_int_parameter_registers[cum->regno];
+
+ /* Only floating point modes are passed in anything but integer regs. */
+ if (TARGET_SSE && (mode == SFmode || mode == DFmode))
+ {
+ if (named)
+ regno = cum->regno + FIRST_SSE_REG;
else
- fprintf (stderr, ", stack");
+ {
+ rtx t1, t2;
- fprintf (stderr, " )\n");
+ /* Unnamed floating parameters are passed in both the
+ SSE and integer registers. */
+ t1 = gen_rtx_REG (mode, cum->regno + FIRST_SSE_REG);
+ t2 = gen_rtx_REG (mode, regno);
+ t1 = gen_rtx_EXPR_LIST (VOIDmode, t1, const0_rtx);
+ t2 = gen_rtx_EXPR_LIST (VOIDmode, t2, const0_rtx);
+ return gen_rtx_PARALLEL (mode, gen_rtvec (2, t1, t2));
+ }
}
- return ret;
+ return gen_reg_or_parallel (mode, orig_mode, regno);
+}
+
+rtx
+function_arg (CUMULATIVE_ARGS *cum, enum machine_mode omode,
+ tree type, int named)
+{
+ enum machine_mode mode = omode;
+ HOST_WIDE_INT bytes, words;
+
+ if (mode == BLKmode)
+ bytes = int_size_in_bytes (type);
+ else
+ bytes = GET_MODE_SIZE (mode);
+ words = (bytes + UNITS_PER_WORD - 1) / UNITS_PER_WORD;
+
+ /* To simplify the code below, represent vector types with a vector mode
+ even if MMX/SSE are not active. */
+ if (type && TREE_CODE (type) == VECTOR_TYPE)
+ mode = type_natural_mode (type);
+
+ if (TARGET_64BIT_MS_ABI)
+ return function_arg_ms_64 (cum, mode, omode, named);
+ else if (TARGET_64BIT)
+ return function_arg_64 (cum, mode, omode, type);
+ else
+ return function_arg_32 (cum, mode, omode, type, bytes, words);
}
/* A C expression that indicates when an argument must be passed by
enum machine_mode mode ATTRIBUTE_UNUSED,
tree type, bool named ATTRIBUTE_UNUSED)
{
- if (!TARGET_64BIT)
- return 0;
-
- if (type && int_size_in_bytes (type) == -1)
+ if (TARGET_64BIT_MS_ABI)
{
- if (TARGET_DEBUG_ARG)
- fprintf (stderr, "function_arg_pass_by_reference\n");
- return 1;
+ if (type)
+ {
+ /* Arrays are passed by reference. */
+ if (TREE_CODE (type) == ARRAY_TYPE)
+ return true;
+
+ if (AGGREGATE_TYPE_P (type))
+ {
+ /* Structs/unions of sizes other than 8, 16, 32, or 64 bits
+ are passed by reference. */
+ int el2 = exact_log2 (int_size_in_bytes (type));
+ return !(el2 >= 0 && el2 <= 3);
+ }
+ }
+
+ /* __m128 is passed by reference. */
+ /* ??? How to handle complex? For now treat them as structs,
+ and pass them by reference if they're too large. */
+ if (GET_MODE_SIZE (mode) > 8)
+ return true;
}
+ else if (TARGET_64BIT && type && int_size_in_bytes (type) == -1)
+ return 1;
return 0;
}
}
/* Return true if N is a possible register number of function value. */
+
bool
ix86_function_value_regno_p (int regno)
{
- if (regno == 0
- || (regno == FIRST_FLOAT_REG && TARGET_FLOAT_RETURNS_IN_80387)
- || (regno == FIRST_SSE_REG && TARGET_SSE))
- return true;
+ switch (regno)
+ {
+ case 0:
+ return true;
- if (!TARGET_64BIT
- && (regno == FIRST_MMX_REG && TARGET_MMX))
- return true;
+ case FIRST_FLOAT_REG:
+ if (TARGET_64BIT_MS_ABI)
+ return false;
+ return TARGET_FLOAT_RETURNS_IN_80387;
+
+ case FIRST_SSE_REG:
+ return TARGET_SSE;
+
+ case FIRST_MMX_REG:
+ if (TARGET_MACHO || TARGET_64BIT)
+ return false;
+ return TARGET_MMX;
+ }
return false;
}
VALTYPE is the data type of the value (as a tree).
If the precise function being called is known, FUNC is its FUNCTION_DECL;
otherwise, FUNC is 0. */
-rtx
-ix86_function_value (tree valtype, tree fntype_or_decl,
- bool outgoing ATTRIBUTE_UNUSED)
+
+static rtx
+function_value_32 (enum machine_mode orig_mode, enum machine_mode mode,
+ tree fntype, tree fn)
{
- enum machine_mode natmode = type_natural_mode (valtype);
+ unsigned int regno;
- if (TARGET_64BIT)
+ /* 8-byte vector modes in %mm0. See ix86_return_in_memory for where
+ we normally prevent this case when mmx is not available. However
+ some ABIs may require the result to be returned like DImode. */
+ if (VECTOR_MODE_P (mode) && GET_MODE_SIZE (mode) == 8)
+ regno = TARGET_MMX ? FIRST_MMX_REG : 0;
+
+ /* 16-byte vector modes in %xmm0. See ix86_return_in_memory for where
+ we prevent this case when sse is not available. However some ABIs
+ may require the result to be returned like integer TImode. */
+ else if (mode == TImode
+ || (VECTOR_MODE_P (mode) && GET_MODE_SIZE (mode) == 16))
+ regno = TARGET_SSE ? FIRST_SSE_REG : 0;
+
+ /* Floating point return values in %st(0) (unless -mno-fp-ret-in-387). */
+ else if (X87_FLOAT_MODE_P (mode) && TARGET_FLOAT_RETURNS_IN_80387)
+ regno = FIRST_FLOAT_REG;
+ else
+ /* Most things go in %eax. */
+ regno = 0;
+
+ /* Override FP return register with %xmm0 for local functions when
+ SSE math is enabled or for functions with sseregparm attribute. */
+ if ((fn || fntype) && (mode == SFmode || mode == DFmode))
{
- rtx ret = construct_container (natmode, TYPE_MODE (valtype), valtype,
- 1, REGPARM_MAX, SSE_REGPARM_MAX,
- x86_64_int_return_registers, 0);
- /* For zero sized structures, construct_container return NULL, but we
- need to keep rest of compiler happy by returning meaningful value. */
- if (!ret)
- ret = gen_rtx_REG (TYPE_MODE (valtype), 0);
- return ret;
+ int sse_level = ix86_function_sseregparm (fntype, fn);
+ if ((sse_level >= 1 && mode == SFmode)
+ || (sse_level == 2 && mode == DFmode))
+ regno = FIRST_SSE_REG;
}
- else
+
+ return gen_rtx_REG (orig_mode, regno);
+}
+
+static rtx
+function_value_64 (enum machine_mode orig_mode, enum machine_mode mode,
+ tree valtype)
+{
+ rtx ret;
+
+ /* Handle libcalls, which don't provide a type node. */
+ if (valtype == NULL)
{
- tree fn = NULL_TREE, fntype;
- if (fntype_or_decl
- && DECL_P (fntype_or_decl))
- fn = fntype_or_decl;
- fntype = fn ? TREE_TYPE (fn) : fntype_or_decl;
- return gen_rtx_REG (TYPE_MODE (valtype),
- ix86_value_regno (natmode, fn, fntype));
+ switch (mode)
+ {
+ case SFmode:
+ case SCmode:
+ case DFmode:
+ case DCmode:
+ case TFmode:
+ case SDmode:
+ case DDmode:
+ case TDmode:
+ return gen_rtx_REG (mode, FIRST_SSE_REG);
+ case XFmode:
+ case XCmode:
+ return gen_rtx_REG (mode, FIRST_FLOAT_REG);
+ case TCmode:
+ return NULL;
+ default:
+ return gen_rtx_REG (mode, 0);
+ }
}
+
+ ret = construct_container (mode, orig_mode, valtype, 1,
+ REGPARM_MAX, SSE_REGPARM_MAX,
+ x86_64_int_return_registers, 0);
+
+ /* For zero sized structures, construct_container returns NULL, but we
+ need to keep rest of compiler happy by returning meaningful value. */
+ if (!ret)
+ ret = gen_rtx_REG (orig_mode, 0);
+
+ return ret;
}
-/* Return true iff type is returned in memory. */
-int
-ix86_return_in_memory (tree type)
+static rtx
+function_value_ms_64 (enum machine_mode orig_mode, enum machine_mode mode)
{
- int needed_intregs, needed_sseregs, size;
- enum machine_mode mode = type_natural_mode (type);
+ unsigned int regno = 0;
- if (TARGET_64BIT)
- return !examine_argument (mode, type, 1, &needed_intregs, &needed_sseregs);
+ if (TARGET_SSE)
+ {
+ if (mode == SFmode || mode == DFmode)
+ regno = FIRST_SSE_REG;
+ else if (VECTOR_MODE_P (mode) || GET_MODE_SIZE (mode) == 16)
+ regno = FIRST_SSE_REG;
+ }
+
+ return gen_rtx_REG (orig_mode, regno);
+}
+
+static rtx
+ix86_function_value_1 (tree valtype, tree fntype_or_decl,
+ enum machine_mode orig_mode, enum machine_mode mode)
+{
+ tree fn, fntype;
+
+ fn = NULL_TREE;
+ if (fntype_or_decl && DECL_P (fntype_or_decl))
+ fn = fntype_or_decl;
+ fntype = fn ? TREE_TYPE (fn) : fntype_or_decl;
+
+ if (TARGET_64BIT_MS_ABI)
+ return function_value_ms_64 (orig_mode, mode);
+ else if (TARGET_64BIT)
+ return function_value_64 (orig_mode, mode, valtype);
+ else
+ return function_value_32 (orig_mode, mode, fntype, fn);
+}
+
+static rtx
+ix86_function_value (tree valtype, tree fntype_or_decl,
+ bool outgoing ATTRIBUTE_UNUSED)
+{
+ enum machine_mode mode, orig_mode;
+
+ orig_mode = TYPE_MODE (valtype);
+ mode = type_natural_mode (valtype);
+ return ix86_function_value_1 (valtype, fntype_or_decl, orig_mode, mode);
+}
+
+rtx
+ix86_libcall_value (enum machine_mode mode)
+{
+ return ix86_function_value_1 (NULL, NULL, mode, mode);
+}
+
+/* Return true iff type is returned in memory. */
+
+static int
+return_in_memory_32 (tree type, enum machine_mode mode)
+{
+ HOST_WIDE_INT size;
if (mode == BLKmode)
return 1;
return 0;
}
+static int
+return_in_memory_64 (tree type, enum machine_mode mode)
+{
+ int needed_intregs, needed_sseregs;
+ return !examine_argument (mode, type, 1, &needed_intregs, &needed_sseregs);
+}
+
+static int
+return_in_memory_ms_64 (tree type, enum machine_mode mode)
+{
+ HOST_WIDE_INT size = int_size_in_bytes (type);
+
+ /* __m128 and friends are returned in xmm0. */
+ if (size == 16 && VECTOR_MODE_P (mode))
+ return 0;
+
+ /* Otherwise, the size must be exactly in [1248]. */
+ return (size != 1 && size != 2 && size != 4 && size != 8);
+}
+
+int
+ix86_return_in_memory (tree type)
+{
+ enum machine_mode mode = type_natural_mode (type);
+
+ if (TARGET_64BIT_MS_ABI)
+ return return_in_memory_ms_64 (type, mode);
+ else if (TARGET_64BIT)
+ return return_in_memory_64 (type, mode);
+ else
+ return return_in_memory_32 (type, mode);
+}
+
/* When returning SSE vector types, we have a choice of either
(1) being abi incompatible with a -march switch, or
(2) generating an error.
{
static bool warnedsse, warnedmmx;
- if (type)
+ if (!TARGET_64BIT && type)
{
/* Look at the return type of the function, not the function type. */
enum machine_mode mode = TYPE_MODE (TREE_TYPE (type));
return NULL;
}
-/* Define how to find the value returned by a library function
- assuming the value has mode MODE. */
-rtx
-ix86_libcall_value (enum machine_mode mode)
-{
- if (TARGET_64BIT)
- {
- switch (mode)
- {
- case SFmode:
- case SCmode:
- case DFmode:
- case DCmode:
- case TFmode:
- case SDmode:
- case DDmode:
- case TDmode:
- return gen_rtx_REG (mode, FIRST_SSE_REG);
- case XFmode:
- case XCmode:
- return gen_rtx_REG (mode, FIRST_FLOAT_REG);
- case TCmode:
- return NULL;
- default:
- return gen_rtx_REG (mode, 0);
- }
- }
- else
- return gen_rtx_REG (mode, ix86_value_regno (mode, NULL, NULL));
-}
-
-/* Given a mode, return the register to use for a return value. */
-
-static int
-ix86_value_regno (enum machine_mode mode, tree func, tree fntype)
-{
- gcc_assert (!TARGET_64BIT);
-
- /* 8-byte vector modes in %mm0. See ix86_return_in_memory for where
- we normally prevent this case when mmx is not available. However
- some ABIs may require the result to be returned like DImode. */
- if (VECTOR_MODE_P (mode) && GET_MODE_SIZE (mode) == 8)
- return TARGET_MMX ? FIRST_MMX_REG : 0;
-
- /* 16-byte vector modes in %xmm0. See ix86_return_in_memory for where
- we prevent this case when sse is not available. However some ABIs
- may require the result to be returned like integer TImode. */
- if (mode == TImode || (VECTOR_MODE_P (mode) && GET_MODE_SIZE (mode) == 16))
- return TARGET_SSE ? FIRST_SSE_REG : 0;
-
- /* Decimal floating point values can go in %eax, unlike other float modes. */
- if (DECIMAL_FLOAT_MODE_P (mode))
- return 0;
-
- /* Most things go in %eax, except (unless -mno-fp-ret-in-387) fp values. */
- if (!SCALAR_FLOAT_MODE_P (mode) || !TARGET_FLOAT_RETURNS_IN_80387)
- return 0;
-
- /* Floating point return values in %st(0), except for local functions when
- SSE math is enabled or for functions with sseregparm attribute. */
- if ((func || fntype)
- && (mode == SFmode || mode == DFmode))
- {
- int sse_level = ix86_function_sseregparm (fntype, func);
- if ((sse_level >= 1 && mode == SFmode)
- || (sse_level == 2 && mode == DFmode))
- return FIRST_SSE_REG;
- }
-
- return FIRST_FLOAT_REG;
-}
\f
/* Create the va_list data type. */
tree f_gpr, f_fpr, f_ovf, f_sav, record, type_decl;
/* For i386 we use plain pointer to argument area. */
- if (!TARGET_64BIT)
+ if (!TARGET_64BIT || TARGET_64BIT_MS_ABI)
return build_pointer_type (char_type_node);
record = (*lang_hooks.types.make_type) (RECORD_TYPE);
/* Worker function for TARGET_SETUP_INCOMING_VARARGS. */
static void
-ix86_setup_incoming_varargs (CUMULATIVE_ARGS *cum, enum machine_mode mode,
- tree type, int *pretend_size ATTRIBUTE_UNUSED,
- int no_rtl)
+setup_incoming_varargs_64 (CUMULATIVE_ARGS *cum)
{
- CUMULATIVE_ARGS next_cum;
- rtx save_area = NULL_RTX, mem;
+ rtx save_area, mem;
rtx label;
rtx label_ref;
rtx tmp_reg;
rtx nsse_reg;
int set;
- tree fntype;
- int stdarg_p;
int i;
- if (!TARGET_64BIT)
- return;
-
if (! cfun->va_list_gpr_size && ! cfun->va_list_fpr_size)
return;
/* Indicate to allocate space on the stack for varargs save area. */
ix86_save_varrargs_registers = 1;
-
cfun->stack_alignment_needed = 128;
- fntype = TREE_TYPE (current_function_decl);
- stdarg_p = (TYPE_ARG_TYPES (fntype) != 0
- && (TREE_VALUE (tree_last (TYPE_ARG_TYPES (fntype)))
- != void_type_node));
+ save_area = frame_pointer_rtx;
+ set = get_varargs_alias_set ();
- /* For varargs, we do not want to skip the dummy va_dcl argument.
- For stdargs, we do want to skip the last named argument. */
- next_cum = *cum;
- if (stdarg_p)
- function_arg_advance (&next_cum, mode, type, 1);
-
- if (!no_rtl)
- save_area = frame_pointer_rtx;
-
- set = get_varargs_alias_set ();
-
- for (i = next_cum.regno;
+ for (i = cum->regno;
i < ix86_regparm
- && i < next_cum.regno + cfun->va_list_gpr_size / UNITS_PER_WORD;
+ && i < cum->regno + cfun->va_list_gpr_size / UNITS_PER_WORD;
i++)
{
mem = gen_rtx_MEM (Pmode,
x86_64_int_parameter_registers[i]));
}
- if (next_cum.sse_nregs && cfun->va_list_fpr_size)
+ if (cum->sse_nregs && cfun->va_list_fpr_size)
{
/* Now emit code to save SSE registers. The AX parameter contains number
of SSE parameter registers used to call this function. We use
emit_insn (gen_rtx_SET (VOIDmode, tmp_reg,
gen_rtx_MULT (Pmode, nsse_reg,
GEN_INT (4))));
- if (next_cum.sse_regno)
+ if (cum->sse_regno)
emit_move_insn
(nsse_reg,
gen_rtx_CONST (DImode,
gen_rtx_PLUS (DImode,
label_ref,
- GEN_INT (next_cum.sse_regno * 4))));
+ GEN_INT (cum->sse_regno * 4))));
else
emit_move_insn (nsse_reg, label_ref);
emit_insn (gen_subdi3 (nsse_reg, nsse_reg, tmp_reg));
/* And finally do the dirty job! */
emit_insn (gen_sse_prologue_save (mem, nsse_reg,
- GEN_INT (next_cum.sse_regno), label));
+ GEN_INT (cum->sse_regno), label));
+ }
+}
+
+static void
+setup_incoming_varargs_ms_64 (CUMULATIVE_ARGS *cum)
+{
+ int set = get_varargs_alias_set ();
+ int i;
+
+ for (i = cum->regno; i < REGPARM_MAX; i++)
+ {
+ rtx reg, mem;
+
+ mem = gen_rtx_MEM (Pmode,
+ plus_constant (virtual_incoming_args_rtx,
+ i * UNITS_PER_WORD));
+ MEM_NOTRAP_P (mem) = 1;
+ set_mem_alias_set (mem, set);
+
+ reg = gen_rtx_REG (Pmode, x86_64_ms_abi_int_parameter_registers[i]);
+ emit_move_insn (mem, reg);
}
+}
+
+static void
+ix86_setup_incoming_varargs (CUMULATIVE_ARGS *cum, enum machine_mode mode,
+ tree type, int *pretend_size ATTRIBUTE_UNUSED,
+ int no_rtl)
+{
+ CUMULATIVE_ARGS next_cum;
+ tree fntype;
+ int stdarg_p;
+
+ /* This argument doesn't appear to be used anymore. Which is good,
+ because the old code here didn't suppress rtl generation. */
+ gcc_assert (!no_rtl);
+
+ if (!TARGET_64BIT)
+ return;
+
+ fntype = TREE_TYPE (current_function_decl);
+ stdarg_p = (TYPE_ARG_TYPES (fntype) != 0
+ && (TREE_VALUE (tree_last (TYPE_ARG_TYPES (fntype)))
+ != void_type_node));
+
+ /* For varargs, we do not want to skip the dummy va_dcl argument.
+ For stdargs, we do want to skip the last named argument. */
+ next_cum = *cum;
+ if (stdarg_p)
+ function_arg_advance (&next_cum, mode, type, 1);
+ if (TARGET_64BIT_MS_ABI)
+ setup_incoming_varargs_ms_64 (&next_cum);
+ else
+ setup_incoming_varargs_64 (&next_cum);
}
/* Implement va_start. */
tree type;
/* Only 64bit target needs something special. */
- if (!TARGET_64BIT)
+ if (!TARGET_64BIT || TARGET_64BIT_MS_ABI)
{
std_expand_builtin_va_start (valist, nextarg);
return;
n_gpr = current_function_args_info.regno;
n_fpr = current_function_args_info.sse_regno;
- if (TARGET_DEBUG_ARG)
- fprintf (stderr, "va_start: words = %d, n_gpr = %d, n_fpr = %d\n",
- (int) words, (int) n_gpr, (int) n_fpr);
-
if (cfun->va_list_gpr_size)
{
type = TREE_TYPE (gpr);
- t = build2 (MODIFY_EXPR, type, gpr,
+ t = build2 (GIMPLE_MODIFY_STMT, type, gpr,
build_int_cst (type, n_gpr * 8));
TREE_SIDE_EFFECTS (t) = 1;
expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
if (cfun->va_list_fpr_size)
{
type = TREE_TYPE (fpr);
- t = build2 (MODIFY_EXPR, type, fpr,
+ t = build2 (GIMPLE_MODIFY_STMT, type, fpr,
build_int_cst (type, n_fpr * 16 + 8*REGPARM_MAX));
TREE_SIDE_EFFECTS (t) = 1;
expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
if (words != 0)
t = build2 (PLUS_EXPR, type, t,
build_int_cst (type, words * UNITS_PER_WORD));
- t = build2 (MODIFY_EXPR, type, ovf, t);
+ t = build2 (GIMPLE_MODIFY_STMT, type, ovf, t);
TREE_SIDE_EFFECTS (t) = 1;
expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
Prologue of the function save it right above stack frame. */
type = TREE_TYPE (sav);
t = make_tree (type, frame_pointer_rtx);
- t = build2 (MODIFY_EXPR, type, sav, t);
+ t = build2 (GIMPLE_MODIFY_STMT, type, sav, t);
TREE_SIDE_EFFECTS (t) = 1;
expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
}
/* Implement va_arg. */
-tree
+static tree
ix86_gimplify_va_arg (tree valist, tree type, tree *pre_p, tree *post_p)
{
static const int intreg[6] = { 0, 1, 2, 3, 4, 5 };
enum machine_mode nat_mode;
/* Only 64bit target needs something special. */
- if (!TARGET_64BIT)
+ if (!TARGET_64BIT || TARGET_64BIT_MS_ABI)
return std_gimplify_va_arg_expr (valist, type, pre_p, post_p);
f_gpr = TYPE_FIELDS (TREE_TYPE (va_list_type_node));
/* int_addr = gpr + sav; */
t = fold_convert (ptr_type_node, gpr);
t = build2 (PLUS_EXPR, ptr_type_node, sav, t);
- t = build2 (MODIFY_EXPR, void_type_node, int_addr, t);
+ t = build2 (GIMPLE_MODIFY_STMT, void_type_node, int_addr, t);
gimplify_and_add (t, pre_p);
}
if (needed_sseregs)
/* sse_addr = fpr + sav; */
t = fold_convert (ptr_type_node, fpr);
t = build2 (PLUS_EXPR, ptr_type_node, sav, t);
- t = build2 (MODIFY_EXPR, void_type_node, sse_addr, t);
+ t = build2 (GIMPLE_MODIFY_STMT, void_type_node, sse_addr, t);
gimplify_and_add (t, pre_p);
}
if (need_temp)
/* addr = &temp; */
t = build1 (ADDR_EXPR, build_pointer_type (type), temp);
- t = build2 (MODIFY_EXPR, void_type_node, addr, t);
+ t = build2 (GIMPLE_MODIFY_STMT, void_type_node, addr, t);
gimplify_and_add (t, pre_p);
for (i = 0; i < XVECLEN (container, 0); i++)
src_offset = REGNO (reg) * 8;
}
src_addr = fold_convert (addr_type, src_addr);
- src_addr = fold (build2 (PLUS_EXPR, addr_type, src_addr,
- size_int (src_offset)));
+ src_addr = fold_build2 (PLUS_EXPR, addr_type, src_addr,
+ size_int (src_offset));
src = build_va_arg_indirect_ref (src_addr);
dest_addr = fold_convert (addr_type, addr);
- dest_addr = fold (build2 (PLUS_EXPR, addr_type, dest_addr,
- size_int (INTVAL (XEXP (slot, 1)))));
+ dest_addr = fold_build2 (PLUS_EXPR, addr_type, dest_addr,
+ size_int (INTVAL (XEXP (slot, 1))));
dest = build_va_arg_indirect_ref (dest_addr);
- t = build2 (MODIFY_EXPR, void_type_node, dest, src);
+ t = build2 (GIMPLE_MODIFY_STMT, void_type_node, dest, src);
gimplify_and_add (t, pre_p);
}
}
{
t = build2 (PLUS_EXPR, TREE_TYPE (gpr), gpr,
build_int_cst (TREE_TYPE (gpr), needed_intregs * 8));
- t = build2 (MODIFY_EXPR, TREE_TYPE (gpr), gpr, t);
+ t = build2 (GIMPLE_MODIFY_STMT, TREE_TYPE (gpr), gpr, t);
gimplify_and_add (t, pre_p);
}
if (needed_sseregs)
{
t = build2 (PLUS_EXPR, TREE_TYPE (fpr), fpr,
build_int_cst (TREE_TYPE (fpr), needed_sseregs * 16));
- t = build2 (MODIFY_EXPR, TREE_TYPE (fpr), fpr, t);
+ t = build2 (GIMPLE_MODIFY_STMT, TREE_TYPE (fpr), fpr, t);
gimplify_and_add (t, pre_p);
}
}
gimplify_expr (&t, pre_p, NULL, is_gimple_val, fb_rvalue);
- t2 = build2 (MODIFY_EXPR, void_type_node, addr, t);
+ t2 = build2 (GIMPLE_MODIFY_STMT, void_type_node, addr, t);
gimplify_and_add (t2, pre_p);
t = build2 (PLUS_EXPR, TREE_TYPE (t), t,
build_int_cst (TREE_TYPE (t), rsize * UNITS_PER_WORD));
- t = build2 (MODIFY_EXPR, TREE_TYPE (ovf), ovf, t);
+ t = build2 (GIMPLE_MODIFY_STMT, TREE_TYPE (ovf), ovf, t);
gimplify_and_add (t, pre_p);
if (container)
mem = XEXP (set, opnum);
while (GET_CODE (mem) == SUBREG)
mem = SUBREG_REG (mem);
- gcc_assert (GET_CODE (mem) == MEM);
+ gcc_assert (MEM_P (mem));
return (volatile_ok || !MEM_VOLATILE_P (mem));
}
\f
int
standard_80387_constant_p (rtx x)
{
+ enum machine_mode mode = GET_MODE (x);
+
REAL_VALUE_TYPE r;
- if (GET_CODE (x) != CONST_DOUBLE || !FLOAT_MODE_P (GET_MODE (x)))
+ if (!(X87_FLOAT_MODE_P (mode) && (GET_CODE (x) == CONST_DOUBLE)))
return -1;
- if (x == CONST0_RTX (GET_MODE (x)))
+ if (x == CONST0_RTX (mode))
return 1;
- if (x == CONST1_RTX (GET_MODE (x)))
+ if (x == CONST1_RTX (mode))
return 2;
REAL_VALUE_FROM_CONST_DOUBLE (r, x);
/* For XFmode constants, try to find a special 80387 instruction when
optimizing for size or on those CPUs that benefit from them. */
- if (GET_MODE (x) == XFmode
- && (optimize_size || x86_ext_80387_constants & TUNEMASK))
+ if (mode == XFmode
+ && (optimize_size || TARGET_EXT_80387_CONSTANTS))
{
int i;
rtx xops[3];
xops[0] = dest;
+
+ if (TARGET_VXWORKS_RTP && flag_pic)
+ {
+ /* Load (*VXWORKS_GOTT_BASE) into the PIC register. */
+ xops[2] = gen_rtx_MEM (Pmode,
+ gen_rtx_SYMBOL_REF (Pmode, VXWORKS_GOTT_BASE));
+ output_asm_insn ("mov{l}\t{%2, %0|%0, %2}", xops);
+
+ /* Load (*VXWORKS_GOTT_BASE)[VXWORKS_GOTT_INDEX] into the PIC register.
+ Use %P and a local symbol in order to print VXWORKS_GOTT_INDEX as
+ an unadorned address. */
+ xops[2] = gen_rtx_SYMBOL_REF (Pmode, VXWORKS_GOTT_INDEX);
+ SYMBOL_REF_FLAGS (xops[2]) |= SYMBOL_FLAG_LOCAL;
+ output_asm_insn ("mov{l}\t{%P2(%0), %0|%0, DWORD PTR %P2[%0]}", xops);
+ return "";
+ }
+
xops[1] = gen_rtx_SYMBOL_REF (Pmode, GOT_SYMBOL_NAME);
if (! TARGET_DEEP_BRANCH_PREDICTION || !flag_pic)
frame->to_allocate -= frame->red_zone_size;
frame->stack_pointer_offset -= frame->red_zone_size;
#if 0
- fprintf (stderr, "nregs: %i\n", frame->nregs);
- fprintf (stderr, "size: %i\n", size);
- fprintf (stderr, "alignment1: %i\n", stack_alignment_needed);
- fprintf (stderr, "padding1: %i\n", frame->padding1);
- fprintf (stderr, "va_arg: %i\n", frame->va_arg_size);
- fprintf (stderr, "padding2: %i\n", frame->padding2);
- fprintf (stderr, "to_allocate: %i\n", frame->to_allocate);
- fprintf (stderr, "red_zone_size: %i\n", frame->red_zone_size);
- fprintf (stderr, "frame_pointer_offset: %i\n", frame->frame_pointer_offset);
- fprintf (stderr, "hard_frame_pointer_offset: %i\n",
- frame->hard_frame_pointer_offset);
- fprintf (stderr, "stack_pointer_offset: %i\n", frame->stack_pointer_offset);
+ fprintf (stderr, "\n");
+ fprintf (stderr, "nregs: %ld\n", (long)frame->nregs);
+ fprintf (stderr, "size: %ld\n", (long)size);
+ fprintf (stderr, "alignment1: %ld\n", (long)stack_alignment_needed);
+ fprintf (stderr, "padding1: %ld\n", (long)frame->padding1);
+ fprintf (stderr, "va_arg: %ld\n", (long)frame->va_arg_size);
+ fprintf (stderr, "padding2: %ld\n", (long)frame->padding2);
+ fprintf (stderr, "to_allocate: %ld\n", (long)frame->to_allocate);
+ fprintf (stderr, "red_zone_size: %ld\n", (long)frame->red_zone_size);
+ fprintf (stderr, "frame_pointer_offset: %ld\n", (long)frame->frame_pointer_offset);
+ fprintf (stderr, "hard_frame_pointer_offset: %ld\n",
+ (long)frame->hard_frame_pointer_offset);
+ fprintf (stderr, "stack_pointer_offset: %ld\n", (long)frame->stack_pointer_offset);
+ fprintf (stderr, "current_function_is_leaf: %ld\n", (long)current_function_is_leaf);
+ fprintf (stderr, "current_function_calls_alloca: %ld\n", (long)current_function_calls_alloca);
+ fprintf (stderr, "x86_current_function_calls_tls_descriptor: %ld\n", (long)ix86_current_function_calls_tls_descriptor);
#endif
}
shouldn't be used together with huge frame sizes in one
function because of the frame_size check in sibcall.c. */
gcc_assert (style);
- r11 = gen_rtx_REG (DImode, FIRST_REX_INT_REG + 3 /* R11 */);
+ r11 = gen_rtx_REG (DImode, R11_REG);
insn = emit_insn (gen_rtx_SET (DImode, r11, offset));
if (style < 0)
RTX_FRAME_RELATED_P (insn) = 1;
else
{
/* Only valid for Win32. */
- rtx eax = gen_rtx_REG (SImode, 0);
- bool eax_live = ix86_eax_live_at_start_p ();
+ rtx eax = gen_rtx_REG (Pmode, 0);
+ bool eax_live;
rtx t;
- gcc_assert (!TARGET_64BIT);
+ gcc_assert (!TARGET_64BIT || TARGET_64BIT_MS_ABI);
+
+ if (TARGET_64BIT_MS_ABI)
+ eax_live = false;
+ else
+ eax_live = ix86_eax_live_at_start_p ();
if (eax_live)
{
emit_insn (gen_push (eax));
- allocate -= 4;
+ allocate -= UNITS_PER_WORD;
}
emit_move_insn (eax, GEN_INT (allocate));
- insn = emit_insn (gen_allocate_stack_worker (eax));
+ if (TARGET_64BIT)
+ insn = gen_allocate_stack_worker_64 (eax);
+ else
+ insn = gen_allocate_stack_worker_32 (eax);
+ insn = emit_insn (insn);
RTX_FRAME_RELATED_P (insn) = 1;
t = gen_rtx_PLUS (Pmode, stack_pointer_rtx, GEN_INT (-allocate));
t = gen_rtx_SET (VOIDmode, stack_pointer_rtx, t);
- frame.nregs * UNITS_PER_WORD);
else
t = plus_constant (stack_pointer_rtx, allocate);
- emit_move_insn (eax, gen_rtx_MEM (SImode, t));
+ emit_move_insn (eax, gen_rtx_MEM (Pmode, t));
}
}
if (pic_reg_used)
{
if (TARGET_64BIT)
- insn = emit_insn (gen_set_got_rex64 (pic_offset_table_rtx));
+ {
+ if (ix86_cmodel == CM_LARGE_PIC)
+ {
+ rtx tmp_reg = gen_rtx_REG (DImode,
+ FIRST_REX_INT_REG + 3 /* R11 */);
+ rtx label = gen_label_rtx ();
+ emit_label (label);
+ LABEL_PRESERVE_P (label) = 1;
+ gcc_assert (REGNO (pic_offset_table_rtx) != REGNO (tmp_reg));
+ insn = emit_insn (gen_set_rip_rex64 (pic_offset_table_rtx, label));
+ REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_MAYBE_DEAD, const0_rtx, NULL);
+ insn = emit_insn (gen_set_got_offset_rex64 (tmp_reg, label));
+ REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_MAYBE_DEAD, const0_rtx, NULL);
+ insn = emit_insn (gen_adddi3 (pic_offset_table_rtx,
+ pic_offset_table_rtx, tmp_reg));
+ }
+ else
+ insn = emit_insn (gen_set_got_rex64 (pic_offset_table_rtx));
+ }
else
insn = emit_insn (gen_set_got (pic_offset_table_rtx));
{
rtx r11;
- r11 = gen_rtx_REG (DImode, FIRST_REX_INT_REG + 3 /* R11 */);
+ r11 = gen_rtx_REG (DImode, R11_REG);
emit_move_insn (r11, GEN_INT (offset));
emit_insn (gen_adddi3 (r11, r11, pointer));
base_address = gen_rtx_MEM (Pmode, r11);
{
rtx ecx = gen_rtx_REG (SImode, 2);
- /* There is no "pascal" calling convention in 64bit ABI. */
+ /* There is no "pascal" calling convention in any 64bit ABI. */
gcc_assert (!TARGET_64BIT);
emit_insn (gen_popsi1 (ecx));
int retval = 1;
enum ix86_address_seg seg = SEG_DEFAULT;
- if (GET_CODE (addr) == REG || GET_CODE (addr) == SUBREG)
+ if (REG_P (addr) || GET_CODE (addr) == SUBREG)
base = addr;
else if (GET_CODE (addr) == PLUS)
{
/* We're called for lea too, which implements ashift on occasion. */
index = XEXP (addr, 0);
tmp = XEXP (addr, 1);
- if (GET_CODE (tmp) != CONST_INT)
+ if (!CONST_INT_P (tmp))
return 0;
scale = INTVAL (tmp);
if ((unsigned HOST_WIDE_INT) scale > 3)
/* Extract the integral value of scale. */
if (scale_rtx)
{
- if (GET_CODE (scale_rtx) != CONST_INT)
+ if (!CONST_INT_P (scale_rtx))
return 0;
scale = INTVAL (scale_rtx);
}
return cost;
}
\f
-/* If X is a machine specific address (i.e. a symbol or label being
- referenced as a displacement from the GOT implemented using an
- UNSPEC), then return the base term. Otherwise return X. */
-
-rtx
-ix86_find_base_term (rtx x)
-{
- rtx term;
-
- if (TARGET_64BIT)
- {
- if (GET_CODE (x) != CONST)
- return x;
- term = XEXP (x, 0);
- if (GET_CODE (term) == PLUS
- && (GET_CODE (XEXP (term, 1)) == CONST_INT
- || GET_CODE (XEXP (term, 1)) == CONST_DOUBLE))
- term = XEXP (term, 0);
- if (GET_CODE (term) != UNSPEC
- || XINT (term, 1) != UNSPEC_GOTPCREL)
- return x;
-
- term = XVECEXP (term, 0, 0);
-
- if (GET_CODE (term) != SYMBOL_REF
- && GET_CODE (term) != LABEL_REF)
- return x;
-
- return term;
- }
-
- term = ix86_delegitimize_address (x);
-
- if (GET_CODE (term) != SYMBOL_REF
- && GET_CODE (term) != LABEL_REF)
- return x;
-
- return term;
-}
-
/* Allow {LABEL | SYMBOL}_REF - SYMBOL_REF-FOR-PICBASE for Mach-O as
this is used for to form addresses to local data when -fPIC is in
use. */
return false;
}
-\f
+
/* Determine if a given RTX is a valid constant. We already know this
satisfies CONSTANT_P. */
if (GET_CODE (x) == PLUS)
{
- if (GET_CODE (XEXP (x, 1)) != CONST_INT)
+ if (!CONST_INT_P (XEXP (x, 1)))
return false;
x = XEXP (x, 0);
}
if (GET_CODE (x) == UNSPEC)
switch (XINT (x, 1))
{
+ case UNSPEC_GOT:
case UNSPEC_GOTOFF:
+ case UNSPEC_PLTOFF:
return TARGET_64BIT;
case UNSPEC_TPOFF:
case UNSPEC_NTPOFF:
/* TLS symbols are never valid. */
if (SYMBOL_REF_TLS_MODEL (x))
return false;
+
+ /* DLLIMPORT symbols are never valid. */
+ if (TARGET_DLLIMPORT_DECL_ATTRIBUTES
+ && SYMBOL_REF_DLLIMPORT_P (x))
+ return false;
break;
case CONST_DOUBLE:
case CONST:
inner = XEXP (x, 0);
if (GET_CODE (inner) == PLUS
- && GET_CODE (XEXP (inner, 1)) == CONST_INT)
+ && CONST_INT_P (XEXP (inner, 1)))
inner = XEXP (inner, 0);
/* Only some unspecs are valid as "constants". */
if (GET_CODE (inner) == UNSPEC)
switch (XINT (inner, 1))
{
+ case UNSPEC_GOT:
case UNSPEC_GOTOFF:
+ case UNSPEC_PLTOFF:
return TARGET_64BIT;
case UNSPEC_TPOFF:
x = XVECEXP (inner, 0, 0);
break;
op0 = XEXP (XEXP (disp, 0), 0);
op1 = XEXP (XEXP (disp, 0), 1);
- if (GET_CODE (op1) != CONST_INT
+ if (!CONST_INT_P (op1)
|| INTVAL (op1) >= 16*1024*1024
|| INTVAL (op1) < -16*1024*1024)
break;
/* TLS references should always be enclosed in UNSPEC. */
if (SYMBOL_REF_TLS_MODEL (op0))
return false;
- if (!SYMBOL_REF_FAR_ADDR_P (op0) && SYMBOL_REF_LOCAL_P (op0))
+ if (!SYMBOL_REF_FAR_ADDR_P (op0) && SYMBOL_REF_LOCAL_P (op0)
+ && ix86_cmodel != CM_LARGE_PIC)
return true;
break;
of GOT tables. We should not need these anyway. */
if (GET_CODE (disp) != UNSPEC
|| (XINT (disp, 1) != UNSPEC_GOTPCREL
- && XINT (disp, 1) != UNSPEC_GOTOFF))
+ && XINT (disp, 1) != UNSPEC_GOTOFF
+ && XINT (disp, 1) != UNSPEC_PLTOFF))
return 0;
if (GET_CODE (XVECEXP (disp, 0, 0)) != SYMBOL_REF
saw_plus = false;
if (GET_CODE (disp) == PLUS)
{
- if (GET_CODE (XEXP (disp, 1)) != CONST_INT)
+ if (!CONST_INT_P (XEXP (disp, 1)))
return 0;
disp = XEXP (disp, 0);
saw_plus = true;
case UNSPEC_GOT:
if (saw_plus)
return false;
- return GET_CODE (XVECEXP (disp, 0, 0)) == SYMBOL_REF;
+ /* We need to check for both symbols and labels because VxWorks loads
+ text labels with @GOT rather than @GOTOFF. See gotoff_operand for
+ details. */
+ return (GET_CODE (XVECEXP (disp, 0, 0)) == SYMBOL_REF
+ || GET_CODE (XVECEXP (disp, 0, 0)) == LABEL_REF);
case UNSPEC_GOTOFF:
/* Refuse GOTOFF in 64bit mode since it is always 64bit when used.
While ABI specify also 32bit relocation but we don't produce it in
if ((GET_CODE (XVECEXP (disp, 0, 0)) == SYMBOL_REF
|| GET_CODE (XVECEXP (disp, 0, 0)) == LABEL_REF)
&& !TARGET_64BIT)
- return local_symbolic_operand (XVECEXP (disp, 0, 0), Pmode);
+ return gotoff_operand (XVECEXP (disp, 0, 0), Pmode);
return false;
case UNSPEC_GOTTPOFF:
case UNSPEC_GOTNTPOFF:
be recognized. */
int
-legitimate_address_p (enum machine_mode mode, rtx addr, int strict)
+legitimate_address_p (enum machine_mode mode ATTRIBUTE_UNUSED,
+ rtx addr, int strict)
{
struct ix86_address parts;
rtx base, index, disp;
const char *reason = NULL;
rtx reason_rtx = NULL_RTX;
- if (TARGET_DEBUG_ADDR)
- {
- fprintf (stderr,
- "\n======\nGO_IF_LEGITIMATE_ADDRESS, mode = %s, strict = %d\n",
- GET_MODE_NAME (mode), strict);
- debug_rtx (addr);
- }
-
if (ix86_decompose_address (addr, &parts) <= 0)
{
reason = "decomposition failed";
if (GET_CODE (disp) != CONST
|| GET_CODE (XEXP (disp, 0)) != PLUS
|| GET_CODE (XEXP (XEXP (disp, 0), 0)) != UNSPEC
- || GET_CODE (XEXP (XEXP (disp, 0), 1)) != CONST_INT
+ || !CONST_INT_P (XEXP (XEXP (disp, 0), 1))
|| (XINT (XEXP (XEXP (disp, 0), 0), 1) != UNSPEC_DTPOFF
&& XINT (XEXP (XEXP (disp, 0), 0), 1) != UNSPEC_NTPOFF))
{
correct fix for crash to disable this test. */
}
else if (GET_CODE (disp) != LABEL_REF
- && GET_CODE (disp) != CONST_INT
+ && !CONST_INT_P (disp)
&& (GET_CODE (disp) != CONST
|| !legitimate_constant_p (disp))
&& (GET_CODE (disp) != SYMBOL_REF
}
/* Everything looks valid. */
- if (TARGET_DEBUG_ADDR)
- fprintf (stderr, "Success.\n");
return TRUE;
report_error:
- if (TARGET_DEBUG_ADDR)
- {
- fprintf (stderr, "Error: %s\n", reason);
- debug_rtx (reason_rtx);
- }
return FALSE;
}
\f
new = addr;
else if (TARGET_64BIT
&& ix86_cmodel != CM_SMALL_PIC
- && local_symbolic_operand (addr, Pmode))
+ && gotoff_operand (addr, Pmode))
{
rtx tmpreg;
/* This symbol may be referenced via a displacement from the PIC
addr = XEXP (addr, 0);
if (GET_CODE (addr) == PLUS)
{
- new = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, XEXP (addr, 0)), UNSPEC_GOTOFF);
+ new = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, XEXP (addr, 0)),
+ UNSPEC_GOTOFF);
new = gen_rtx_PLUS (Pmode, new, XEXP (addr, 1));
}
else
}
else new = gen_rtx_PLUS (Pmode, pic_offset_table_rtx, tmpreg);
}
- else if (!TARGET_64BIT && local_symbolic_operand (addr, Pmode))
+ else if (!TARGET_64BIT && gotoff_operand (addr, Pmode))
{
/* This symbol may be referenced via a displacement from the PIC
base address (@GOTOFF). */
addr = XEXP (addr, 0);
if (GET_CODE (addr) == PLUS)
{
- new = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, XEXP (addr, 0)), UNSPEC_GOTOFF);
+ new = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, XEXP (addr, 0)),
+ UNSPEC_GOTOFF);
new = gen_rtx_PLUS (Pmode, new, XEXP (addr, 1));
}
else
new = reg;
}
}
- else if (GET_CODE (addr) == SYMBOL_REF && SYMBOL_REF_TLS_MODEL (addr) == 0)
+ else if ((GET_CODE (addr) == SYMBOL_REF && SYMBOL_REF_TLS_MODEL (addr) == 0)
+ /* We can't use @GOTOFF for text labels on VxWorks;
+ see gotoff_operand. */
+ || (TARGET_VXWORKS_RTP && GET_CODE (addr) == LABEL_REF))
{
- if (TARGET_64BIT)
+ /* Given that we've already handled dllimport variables separately
+ in legitimize_address, and all other variables should satisfy
+ legitimate_pic_address_disp_p, we should never arrive here. */
+ gcc_assert (!TARGET_64BIT_MS_ABI);
+
+ if (TARGET_64BIT && ix86_cmodel != CM_LARGE_PIC)
{
new = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, addr), UNSPEC_GOTPCREL);
new = gen_rtx_CONST (Pmode, new);
regs_ever_live[PIC_OFFSET_TABLE_REGNUM] = 1;
new = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, addr), UNSPEC_GOT);
new = gen_rtx_CONST (Pmode, new);
+ if (TARGET_64BIT)
+ new = force_reg (Pmode, new);
new = gen_rtx_PLUS (Pmode, pic_offset_table_rtx, new);
new = gen_const_mem (Pmode, new);
set_mem_alias_set (new, ix86_GOT_alias_set ());
}
else
{
- if (GET_CODE (addr) == CONST_INT
+ if (CONST_INT_P (addr)
&& !x86_64_immediate_operand (addr, VOIDmode))
{
if (reg)
/* Check first to see if this is a constant offset from a @GOTOFF
symbol reference. */
- if (local_symbolic_operand (op0, Pmode)
- && GET_CODE (op1) == CONST_INT)
+ if (gotoff_operand (op0, Pmode)
+ && CONST_INT_P (op1))
{
if (!TARGET_64BIT)
{
new = legitimize_pic_address (XEXP (addr, 1),
base == reg ? NULL_RTX : reg);
- if (GET_CODE (new) == CONST_INT)
+ if (CONST_INT_P (new))
new = plus_constant (base, INTVAL (new));
else
{
return dest;
}
+/* Create or return the unique __imp_DECL dllimport symbol corresponding
+ to symbol DECL. */
+
+static GTY((if_marked ("tree_map_marked_p"), param_is (struct tree_map)))
+ htab_t dllimport_map;
+
+static tree
+get_dllimport_decl (tree decl)
+{
+ struct tree_map *h, in;
+ void **loc;
+ const char *name;
+ const char *prefix;
+ size_t namelen, prefixlen;
+ char *imp_name;
+ tree to;
+ rtx rtl;
+
+ if (!dllimport_map)
+ dllimport_map = htab_create_ggc (512, tree_map_hash, tree_map_eq, 0);
+
+ in.hash = htab_hash_pointer (decl);
+ in.base.from = decl;
+ loc = htab_find_slot_with_hash (dllimport_map, &in, in.hash, INSERT);
+ h = *loc;
+ if (h)
+ return h->to;
+
+ *loc = h = ggc_alloc (sizeof (struct tree_map));
+ h->hash = in.hash;
+ h->base.from = decl;
+ h->to = to = build_decl (VAR_DECL, NULL, ptr_type_node);
+ DECL_ARTIFICIAL (to) = 1;
+ DECL_IGNORED_P (to) = 1;
+ DECL_EXTERNAL (to) = 1;
+ TREE_READONLY (to) = 1;
+
+ name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl));
+ name = targetm.strip_name_encoding (name);
+ if (name[0] == FASTCALL_PREFIX)
+ {
+ name++;
+ prefix = "*__imp_";
+ }
+ else
+ prefix = "*__imp__";
+
+ namelen = strlen (name);
+ prefixlen = strlen (prefix);
+ imp_name = alloca (namelen + prefixlen + 1);
+ memcpy (imp_name, prefix, prefixlen);
+ memcpy (imp_name + prefixlen, name, namelen + 1);
+
+ name = ggc_alloc_string (imp_name, namelen + prefixlen);
+ rtl = gen_rtx_SYMBOL_REF (Pmode, name);
+ SET_SYMBOL_REF_DECL (rtl, to);
+ SYMBOL_REF_FLAGS (rtl) = SYMBOL_FLAG_LOCAL;
+
+ rtl = gen_const_mem (Pmode, rtl);
+ set_mem_alias_set (rtl, ix86_GOT_alias_set ());
+
+ SET_DECL_RTL (to, rtl);
+
+ return to;
+}
+
+/* Expand SYMBOL into its corresponding dllimport symbol. WANT_REG is
+ true if we require the result be a register. */
+
+static rtx
+legitimize_dllimport_symbol (rtx symbol, bool want_reg)
+{
+ tree imp_decl;
+ rtx x;
+
+ gcc_assert (SYMBOL_REF_DECL (symbol));
+ imp_decl = get_dllimport_decl (SYMBOL_REF_DECL (symbol));
+
+ x = DECL_RTL (imp_decl);
+ if (want_reg)
+ x = force_reg (Pmode, x);
+ return x;
+}
+
/* Try machine-dependent ways of modifying an illegitimate address
to be legitimate. If we find one, return the new, valid address.
This macro is used in only one place: `memory_address' in explow.c.
int changed = 0;
unsigned log;
- if (TARGET_DEBUG_ADDR)
- {
- fprintf (stderr, "\n==========\nLEGITIMIZE_ADDRESS, mode = %s\n",
- GET_MODE_NAME (mode));
- debug_rtx (x);
- }
-
log = GET_CODE (x) == SYMBOL_REF ? SYMBOL_REF_TLS_MODEL (x) : 0;
if (log)
return legitimize_tls_address (x, log, false);
if (flag_pic && SYMBOLIC_CONST (x))
return legitimize_pic_address (x, 0);
+ if (TARGET_DLLIMPORT_DECL_ATTRIBUTES)
+ {
+ if (GET_CODE (x) == SYMBOL_REF && SYMBOL_REF_DLLIMPORT_P (x))
+ return legitimize_dllimport_symbol (x, true);
+ if (GET_CODE (x) == CONST
+ && GET_CODE (XEXP (x, 0)) == PLUS
+ && GET_CODE (XEXP (XEXP (x, 0), 0)) == SYMBOL_REF
+ && SYMBOL_REF_DLLIMPORT_P (XEXP (XEXP (x, 0), 0)))
+ {
+ rtx t = legitimize_dllimport_symbol (XEXP (XEXP (x, 0), 0), true);
+ return gen_rtx_PLUS (Pmode, t, XEXP (XEXP (x, 0), 1));
+ }
+ }
+
/* Canonicalize shifts by 0, 1, 2, 3 into multiply */
if (GET_CODE (x) == ASHIFT
- && GET_CODE (XEXP (x, 1)) == CONST_INT
+ && CONST_INT_P (XEXP (x, 1))
&& (unsigned HOST_WIDE_INT) INTVAL (XEXP (x, 1)) < 4)
{
changed = 1;
/* Canonicalize shifts by 0, 1, 2, 3 into multiply. */
if (GET_CODE (XEXP (x, 0)) == ASHIFT
- && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT
+ && CONST_INT_P (XEXP (XEXP (x, 0), 1))
&& (unsigned HOST_WIDE_INT) INTVAL (XEXP (XEXP (x, 0), 1)) < 4)
{
changed = 1;
}
if (GET_CODE (XEXP (x, 1)) == ASHIFT
- && GET_CODE (XEXP (XEXP (x, 1), 1)) == CONST_INT
+ && CONST_INT_P (XEXP (XEXP (x, 1), 1))
&& (unsigned HOST_WIDE_INT) INTVAL (XEXP (XEXP (x, 1), 1)) < 4)
{
changed = 1;
rtx constant;
rtx other = NULL_RTX;
- if (GET_CODE (XEXP (x, 1)) == CONST_INT)
+ if (CONST_INT_P (XEXP (x, 1)))
{
constant = XEXP (x, 1);
other = XEXP (XEXP (XEXP (x, 0), 1), 1);
}
- else if (GET_CODE (XEXP (XEXP (XEXP (x, 0), 1), 1)) == CONST_INT)
+ else if (CONST_INT_P (XEXP (XEXP (XEXP (x, 0), 1), 1)))
{
constant = XEXP (XEXP (XEXP (x, 0), 1), 1);
other = XEXP (x, 1);
}
if (changed
- && GET_CODE (XEXP (x, 1)) == REG
- && GET_CODE (XEXP (x, 0)) == REG)
+ && REG_P (XEXP (x, 1))
+ && REG_P (XEXP (x, 0)))
return x;
if (flag_pic && SYMBOLIC_CONST (XEXP (x, 1)))
if (changed && legitimate_address_p (mode, x, FALSE))
return x;
- if (GET_CODE (XEXP (x, 0)) == REG)
+ if (REG_P (XEXP (x, 0)))
{
rtx temp = gen_reg_rtx (Pmode);
rtx val = force_operand (XEXP (x, 1), temp);
return x;
}
- else if (GET_CODE (XEXP (x, 1)) == REG)
+ else if (REG_P (XEXP (x, 1)))
{
rtx temp = gen_reg_rtx (Pmode);
rtx val = force_operand (XEXP (x, 0), temp);
break;
case SYMBOL_REF:
- output_addr_const (file, x);
- if (!TARGET_MACHO && code == 'P' && ! SYMBOL_REF_LOCAL_P (x))
+ if (! TARGET_MACHO || TARGET_64BIT)
+ output_addr_const (file, x);
+ else
+ {
+ const char *name = XSTR (x, 0);
+
+ /* Mark the decl as referenced so that cgraph will
+ output the function. */
+ if (SYMBOL_REF_DECL (x))
+ mark_decl_referenced (SYMBOL_REF_DECL (x));
+
+#if TARGET_MACHO
+ if (MACHOPIC_INDIRECT
+ && machopic_classify_symbol (x) == MACHOPIC_UNDEFINED_FUNCTION)
+ name = machopic_indirection_name (x, /*stub_p=*/true);
+#endif
+ assemble_name (file, name);
+ }
+ if (!TARGET_MACHO && !TARGET_64BIT_MS_ABI
+ && code == 'P' && ! SYMBOL_REF_LOCAL_P (x))
fputs ("@PLT", file);
break;
case PLUS:
/* Some assemblers need integer constants to appear first. */
- if (GET_CODE (XEXP (x, 0)) == CONST_INT)
+ if (CONST_INT_P (XEXP (x, 0)))
{
output_pic_addr_const (file, XEXP (x, 0), code);
putc ('+', file);
}
else
{
- gcc_assert (GET_CODE (XEXP (x, 1)) == CONST_INT);
+ gcc_assert (CONST_INT_P (XEXP (x, 1)));
output_pic_addr_const (file, XEXP (x, 1), code);
putc ('+', file);
output_pic_addr_const (file, XEXP (x, 0), code);
case UNSPEC_GOTOFF:
fputs ("@GOTOFF", file);
break;
+ case UNSPEC_PLTOFF:
+ fputs ("@PLTOFF", file);
+ break;
case UNSPEC_GOTPCREL:
fputs ("@GOTPCREL(%rip)", file);
break;
/* This is called from dwarf2out.c via TARGET_ASM_OUTPUT_DWARF_DTPREL.
We need to emit DTP-relative relocations. */
-static void
+static void ATTRIBUTE_UNUSED
i386_output_dwarf_dtprel (FILE *file, int size, rtx x)
{
fputs (ASM_LONG, file);
/* This is the result, or NULL. */
rtx result = NULL_RTX;
- if (GET_CODE (x) == MEM)
+ if (MEM_P (x))
x = XEXP (x, 0);
if (TARGET_64BIT)
if (GET_CODE (x) != CONST
|| GET_CODE (XEXP (x, 0)) != UNSPEC
|| XINT (XEXP (x, 0), 1) != UNSPEC_GOTPCREL
- || GET_CODE (orig_x) != MEM)
+ || !MEM_P (orig_x))
return orig_x;
return XVECEXP (XEXP (x, 0), 0, 0);
}
|| GET_CODE (XEXP (x, 1)) != CONST)
return orig_x;
- if (GET_CODE (XEXP (x, 0)) == REG
+ if (REG_P (XEXP (x, 0))
&& REGNO (XEXP (x, 0)) == PIC_OFFSET_TABLE_REGNUM)
/* %ebx + GOT/GOTOFF */
;
{
/* %ebx + %reg * scale + GOT/GOTOFF */
reg_addend = XEXP (x, 0);
- if (GET_CODE (XEXP (reg_addend, 0)) == REG
+ if (REG_P (XEXP (reg_addend, 0))
&& REGNO (XEXP (reg_addend, 0)) == PIC_OFFSET_TABLE_REGNUM)
reg_addend = XEXP (reg_addend, 1);
- else if (GET_CODE (XEXP (reg_addend, 1)) == REG
+ else if (REG_P (XEXP (reg_addend, 1))
&& REGNO (XEXP (reg_addend, 1)) == PIC_OFFSET_TABLE_REGNUM)
reg_addend = XEXP (reg_addend, 0);
else
return orig_x;
- if (GET_CODE (reg_addend) != REG
+ if (!REG_P (reg_addend)
&& GET_CODE (reg_addend) != MULT
&& GET_CODE (reg_addend) != ASHIFT)
return orig_x;
x = XEXP (XEXP (x, 1), 0);
if (GET_CODE (x) == PLUS
- && GET_CODE (XEXP (x, 1)) == CONST_INT)
+ && CONST_INT_P (XEXP (x, 1)))
{
const_addend = XEXP (x, 1);
x = XEXP (x, 0);
}
if (GET_CODE (x) == UNSPEC
- && ((XINT (x, 1) == UNSPEC_GOT && GET_CODE (orig_x) == MEM)
- || (XINT (x, 1) == UNSPEC_GOTOFF && GET_CODE (orig_x) != MEM)))
+ && ((XINT (x, 1) == UNSPEC_GOT && MEM_P (orig_x))
+ || (XINT (x, 1) == UNSPEC_GOTOFF && !MEM_P (orig_x))))
result = XVECEXP (x, 0, 0);
if (TARGET_MACHO && darwin_local_data_pic (x)
- && GET_CODE (orig_x) != MEM)
+ && !MEM_P (orig_x))
result = XEXP (x, 0);
if (! result)
result = gen_rtx_PLUS (Pmode, reg_addend, result);
return result;
}
+
+/* If X is a machine specific address (i.e. a symbol or label being
+ referenced as a displacement from the GOT implemented using an
+ UNSPEC), then return the base term. Otherwise return X. */
+
+rtx
+ix86_find_base_term (rtx x)
+{
+ rtx term;
+
+ if (TARGET_64BIT)
+ {
+ if (GET_CODE (x) != CONST)
+ return x;
+ term = XEXP (x, 0);
+ if (GET_CODE (term) == PLUS
+ && (CONST_INT_P (XEXP (term, 1))
+ || GET_CODE (XEXP (term, 1)) == CONST_DOUBLE))
+ term = XEXP (term, 0);
+ if (GET_CODE (term) != UNSPEC
+ || XINT (term, 1) != UNSPEC_GOTPCREL)
+ return x;
+
+ term = XVECEXP (term, 0, 0);
+
+ if (GET_CODE (term) != SYMBOL_REF
+ && GET_CODE (term) != LABEL_REF)
+ return x;
+
+ return term;
+ }
+
+ term = ix86_delegitimize_address (x);
+
+ if (GET_CODE (term) != SYMBOL_REF
+ && GET_CODE (term) != LABEL_REF)
+ return x;
+
+ return term;
+}
\f
static void
put_condition_code (enum rtx_code code, enum machine_mode mode, int reverse,
so that we can print its name in some tls_local_dynamic_base
pattern. */
+static int
+get_some_local_dynamic_name_1 (rtx *px, void *data ATTRIBUTE_UNUSED)
+{
+ rtx x = *px;
+
+ if (GET_CODE (x) == SYMBOL_REF
+ && SYMBOL_REF_TLS_MODEL (x) == TLS_MODEL_LOCAL_DYNAMIC)
+ {
+ cfun->machine->some_ld_name = XSTR (x, 0);
+ return 1;
+ }
+
+ return 0;
+}
+
static const char *
get_some_local_dynamic_name (void)
{
gcc_unreachable ();
}
-static int
-get_some_local_dynamic_name_1 (rtx *px, void *data ATTRIBUTE_UNUSED)
-{
- rtx x = *px;
-
- if (GET_CODE (x) == SYMBOL_REF
- && SYMBOL_REF_TLS_MODEL (x) == TLS_MODEL_LOCAL_DYNAMIC)
- {
- cfun->machine->some_ld_name = XSTR (x, 0);
- return 1;
- }
-
- return 0;
-}
-
/* Meaning of CODE:
L,W,B,Q,S,T -- print the opcode suffix for specified size of operand.
C -- print opcode suffix for set/cmov insn.
case ASM_INTEL:
/* Intel syntax. For absolute addresses, registers should not
be surrounded by braces. */
- if (GET_CODE (x) != REG)
+ if (!REG_P (x))
{
putc ('[', file);
PRINT_OPERAND (file, x, 0);
/* This is the size of op from size of operand. */
switch (GET_MODE_SIZE (GET_MODE (x)))
{
+ case 1:
+ putc ('b', file);
+ return;
+
case 2:
#ifdef HAVE_GAS_FILDS_FISTS
putc ('s', file);
break;
case 's':
- if (GET_CODE (x) == CONST_INT || ! SHIFT_DOUBLE_OMITS_COUNT)
+ if (CONST_INT_P (x) || ! SHIFT_DOUBLE_OMITS_COUNT)
{
PRINT_OPERAND (file, x, 0);
putc (',', file);
}
}
- if (GET_CODE (x) == REG)
+ if (REG_P (x))
print_reg (x, code, file);
- else if (GET_CODE (x) == MEM)
+ else if (MEM_P (x))
{
/* No `byte ptr' prefix for call instructions. */
if (ASSEMBLER_DIALECT == ASM_INTEL && code != 'X' && code != 'P')
x = XEXP (x, 0);
/* Avoid (%rip) for call operands. */
if (CONSTANT_ADDRESS_P (x) && code == 'P'
- && GET_CODE (x) != CONST_INT)
+ && !CONST_INT_P (x))
output_addr_const (file, x);
else if (this_is_asm_operands && ! address_operand (x, VOIDmode))
output_operand_lossage ("invalid constraints for operand");
if (code != 'P')
{
- if (GET_CODE (x) == CONST_INT || GET_CODE (x) == CONST_DOUBLE)
+ if (CONST_INT_P (x) || GET_CODE (x) == CONST_DOUBLE)
{
if (ASSEMBLER_DIALECT == ASM_ATT)
putc ('$', file);
fputs ("OFFSET FLAT:", file);
}
}
- if (GET_CODE (x) == CONST_INT)
+ if (CONST_INT_P (x))
fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (x));
else if (flag_pic)
output_pic_addr_const (file, x, code);
{
/* Displacement only requires special attention. */
- if (GET_CODE (disp) == CONST_INT)
+ if (CONST_INT_P (disp))
{
if (ASSEMBLER_DIALECT == ASM_INTEL && parts.seg == SEG_DEFAULT)
{
{
if (GET_CODE (disp) == CONST
&& GET_CODE (XEXP (disp, 0)) == PLUS
- && GET_CODE (XEXP (XEXP (disp, 0), 1)) == CONST_INT)
+ && CONST_INT_P (XEXP (XEXP (disp, 0), 1)))
disp = XEXP (XEXP (disp, 0), 0);
if (GET_CODE (disp) == LABEL_REF
|| (GET_CODE (disp) == SYMBOL_REF
/* Pull out the offset of a symbol; print any symbol itself. */
if (GET_CODE (disp) == CONST
&& GET_CODE (XEXP (disp, 0)) == PLUS
- && GET_CODE (XEXP (XEXP (disp, 0), 1)) == CONST_INT)
+ && CONST_INT_P (XEXP (XEXP (disp, 0), 1)))
{
offset = XEXP (XEXP (disp, 0), 1);
disp = gen_rtx_CONST (VOIDmode,
output_pic_addr_const (file, disp, 0);
else if (GET_CODE (disp) == LABEL_REF)
output_asm_label (disp);
- else if (GET_CODE (disp) == CONST_INT)
+ else if (CONST_INT_P (disp))
offset = disp;
else
output_addr_const (file, disp);
/* simplify_subreg refuse to split volatile memory addresses,
but we still have to handle it. */
- if (GET_CODE (op) == MEM)
+ if (MEM_P (op))
{
lo_half[num] = adjust_address (op, SImode, 0);
hi_half[num] = adjust_address (op, SImode, 4);
/* simplify_subreg refuse to split volatile memory addresses, but we
still have to handle it. */
- if (GET_CODE (op) == MEM)
+ if (MEM_P (op))
{
lo_half[num] = adjust_address (op, DImode, 0);
hi_half[num] = adjust_address (op, DImode, 8);
if (STACK_REG_P (operands[0])
&& ((REG_P (operands[1])
&& REGNO (operands[0]) == REGNO (operands[1])
- && (STACK_REG_P (operands[2]) || GET_CODE (operands[2]) == MEM))
+ && (STACK_REG_P (operands[2]) || MEM_P (operands[2])))
|| (REG_P (operands[2])
&& REGNO (operands[0]) == REGNO (operands[2])
- && (STACK_REG_P (operands[1]) || GET_CODE (operands[1]) == MEM)))
+ && (STACK_REG_P (operands[1]) || MEM_P (operands[1]))))
&& (STACK_TOP_P (operands[1]) || STACK_TOP_P (operands[2])))
; /* ok */
else
/* know operands[0] == operands[1]. */
- if (GET_CODE (operands[2]) == MEM)
+ if (MEM_P (operands[2]))
{
p = "%z2\t%2";
break;
case MINUS:
case DIV:
- if (GET_CODE (operands[1]) == MEM)
+ if (MEM_P (operands[1]))
{
p = "r%z1\t%1";
break;
}
- if (GET_CODE (operands[2]) == MEM)
+ if (MEM_P (operands[2]))
{
p = "%z2\t%2";
break;
output_asm_insn ("fld\t%y1", operands);
gcc_assert (STACK_TOP_P (operands[1]));
- gcc_assert (GET_CODE (operands[0]) == MEM);
+ gcc_assert (MEM_P (operands[0]));
+ gcc_assert (GET_MODE (operands[1]) != TFmode);
if (fisttp)
output_asm_insn ("fisttp%z0\t%0", operands);
{
static char retval[] = ".word\t0xc_df";
int regno = REGNO (operands[opno]);
-
+
gcc_assert (FP_REGNO_P (regno));
retval[9] = '0' + (regno - FIRST_STACK_REG);
void
ix86_output_addr_diff_elt (FILE *file, int value, int rel)
{
- if (TARGET_64BIT)
+ const char *directive = ASM_LONG;
+
+#ifdef ASM_QUAD
+ if (TARGET_64BIT && CASE_VECTOR_MODE == DImode)
+ directive = ASM_QUAD;
+#else
+ gcc_assert (!TARGET_64BIT);
+#endif
+ /* We can't use @GOTOFF for text labels on VxWorks; see gotoff_operand. */
+ if (TARGET_64BIT || TARGET_VXWORKS_RTP)
fprintf (file, "%s%s%d-%s%d\n",
- ASM_LONG, LPREFIX, value, LPREFIX, rel);
+ directive, LPREFIX, value, LPREFIX, rel);
else if (HAVE_AS_GOTOFF_IN_DATA)
fprintf (file, "%s%s%d@GOTOFF\n", ASM_LONG, LPREFIX, value);
#if TARGET_MACHO
/* Avoid HImode and its attendant prefix byte. */
if (GET_MODE_SIZE (GET_MODE (dest)) < 4)
dest = gen_rtx_REG (SImode, REGNO (dest));
-
tmp = gen_rtx_SET (VOIDmode, dest, const0_rtx);
/* This predicate should match that for movsi_xor and movdi_xor_rex64. */
if (op1 == op0)
return;
}
+ else if (TARGET_DLLIMPORT_DECL_ATTRIBUTES
+ && SYMBOL_REF_DLLIMPORT_P (op1))
+ op1 = legitimize_dllimport_symbol (op1, false);
}
else if (GET_CODE (op1) == CONST
&& GET_CODE (XEXP (op1, 0)) == PLUS
&& GET_CODE (XEXP (XEXP (op1, 0), 0)) == SYMBOL_REF)
{
- model = SYMBOL_REF_TLS_MODEL (XEXP (XEXP (op1, 0), 0));
+ rtx addend = XEXP (XEXP (op1, 0), 1);
+ rtx symbol = XEXP (XEXP (op1, 0), 0);
+ rtx tmp = NULL;
+
+ model = SYMBOL_REF_TLS_MODEL (symbol);
if (model)
+ tmp = legitimize_tls_address (symbol, model, true);
+ else if (TARGET_DLLIMPORT_DECL_ATTRIBUTES
+ && SYMBOL_REF_DLLIMPORT_P (symbol))
+ tmp = legitimize_dllimport_symbol (symbol, true);
+
+ if (tmp)
{
- rtx addend = XEXP (XEXP (op1, 0), 1);
- op1 = legitimize_tls_address (XEXP (XEXP (op1, 0), 0), model, true);
- op1 = force_operand (op1, NULL);
- op1 = expand_simple_binop (Pmode, PLUS, op1, addend,
+ tmp = force_operand (tmp, NULL);
+ tmp = expand_simple_binop (Pmode, PLUS, tmp, addend,
op0, 1, OPTAB_DIRECT);
- if (op1 == op0)
+ if (tmp == op0)
return;
}
}
if (MACHOPIC_PURE)
{
rtx temp = ((reload_in_progress
- || ((op0 && GET_CODE (op0) == REG)
+ || ((op0 && REG_P (op0))
&& mode == Pmode))
? op0 : gen_reg_rtx (Pmode));
op1 = machopic_indirect_data_reference (op1, temp);
}
else
{
- if (GET_CODE (op0) == MEM)
+ if (MEM_P (op0))
op1 = force_reg (Pmode, op1);
- else
- op1 = legitimize_address (op1, op1, Pmode);
+ else if (!TARGET_64BIT || !x86_64_movabs_operand (op1, Pmode))
+ {
+ rtx reg = no_new_pseudos ? op0 : NULL_RTX;
+ op1 = legitimize_pic_address (op1, reg);
+ if (op0 == op1)
+ return;
+ }
}
}
else
{
- if (GET_CODE (op0) == MEM
+ if (MEM_P (op0)
&& (PUSH_ROUNDING (GET_MODE_SIZE (mode)) != GET_MODE_SIZE (mode)
|| !push_operand (op0, mode))
- && GET_CODE (op1) == MEM)
+ && MEM_P (op1))
op1 = force_reg (mode, op1);
if (push_operand (op0, mode)
/* Implement the movmisalign patterns for SSE. Non-SSE modes go
straight to ix86_expand_vector_move. */
+/* Code generation for scalar reg-reg moves of single and double precision data:
+ if (x86_sse_partial_reg_dependency == true | x86_sse_split_regs == true)
+ movaps reg, reg
+ else
+ movss reg, reg
+ if (x86_sse_partial_reg_dependency == true)
+ movapd reg, reg
+ else
+ movsd reg, reg
+
+ Code generation for scalar loads of double precision data:
+ if (x86_sse_split_regs == true)
+ movlpd mem, reg (gas syntax)
+ else
+ movsd mem, reg
+
+ Code generation for unaligned packed loads of single precision data
+ (x86_sse_unaligned_move_optimal overrides x86_sse_partial_reg_dependency):
+ if (x86_sse_unaligned_move_optimal)
+ movups mem, reg
+
+ if (x86_sse_partial_reg_dependency == true)
+ {
+ xorps reg, reg
+ movlps mem, reg
+ movhps mem+8, reg
+ }
+ else
+ {
+ movlps mem, reg
+ movhps mem+8, reg
+ }
+
+ Code generation for unaligned packed loads of double precision data
+ (x86_sse_unaligned_move_optimal overrides x86_sse_split_regs):
+ if (x86_sse_unaligned_move_optimal)
+ movupd mem, reg
+
+ if (x86_sse_split_regs == true)
+ {
+ movlpd mem, reg
+ movhpd mem+8, reg
+ }
+ else
+ {
+ movsd mem, reg
+ movhpd mem+8, reg
+ }
+ */
void
ix86_expand_vector_move_misalign (enum machine_mode mode, rtx operands[])
}
if (TARGET_SSE2 && mode == V2DFmode)
- {
- rtx zero;
+ {
+ rtx zero;
+
+ if (TARGET_SSE_UNALIGNED_MOVE_OPTIMAL)
+ {
+ op0 = gen_lowpart (V2DFmode, op0);
+ op1 = gen_lowpart (V2DFmode, op1);
+ emit_insn (gen_sse2_movupd (op0, op1));
+ return;
+ }
/* When SSE registers are split into halves, we can avoid
writing to the top half twice. */
emit_insn (gen_sse2_loadhpd (op0, op0, m));
}
else
- {
+ {
+ if (TARGET_SSE_UNALIGNED_MOVE_OPTIMAL)
+ {
+ op0 = gen_lowpart (V4SFmode, op0);
+ op1 = gen_lowpart (V4SFmode, op1);
+ emit_insn (gen_sse_movups (op0, op1));
+ return;
+ }
+
if (TARGET_SSE_PARTIAL_REG_DEPENDENCY)
emit_move_insn (op0, CONST0_RTX (mode));
else
emit_move_insn (tmp, x);
}
+/* Helper function of ix86_fixup_binary_operands to canonicalize
+ operand order. Returns true if the operands should be swapped. */
+
+static bool
+ix86_swap_binary_operands_p (enum rtx_code code, enum machine_mode mode,
+ rtx operands[])
+{
+ rtx dst = operands[0];
+ rtx src1 = operands[1];
+ rtx src2 = operands[2];
+
+ /* If the operation is not commutative, we can't do anything. */
+ if (GET_RTX_CLASS (code) != RTX_COMM_ARITH)
+ return false;
+
+ /* Highest priority is that src1 should match dst. */
+ if (rtx_equal_p (dst, src1))
+ return false;
+ if (rtx_equal_p (dst, src2))
+ return true;
+
+ /* Next highest priority is that immediate constants come second. */
+ if (immediate_operand (src2, mode))
+ return false;
+ if (immediate_operand (src1, mode))
+ return true;
+
+ /* Lowest priority is that memory references should come second. */
+ if (MEM_P (src2))
+ return false;
+ if (MEM_P (src1))
+ return true;
+
+ return false;
+}
+
+
/* Fix up OPERANDS to satisfy ix86_binary_operator_ok. Return the
destination to use for the operation. If different from the true
destination in operands[0], a copy operation will be required. */
ix86_fixup_binary_operands (enum rtx_code code, enum machine_mode mode,
rtx operands[])
{
- int matching_memory;
- rtx src1, src2, dst;
-
- dst = operands[0];
- src1 = operands[1];
- src2 = operands[2];
+ rtx dst = operands[0];
+ rtx src1 = operands[1];
+ rtx src2 = operands[2];
- /* Recognize <var1> = <value> <op> <var1> for commutative operators */
- if (GET_RTX_CLASS (code) == RTX_COMM_ARITH
- && (rtx_equal_p (dst, src2)
- || immediate_operand (src1, mode)))
+ /* Canonicalize operand order. */
+ if (ix86_swap_binary_operands_p (code, mode, operands))
{
rtx temp = src1;
src1 = src2;
src2 = temp;
}
- /* If the destination is memory, and we do not have matching source
- operands, do things in registers. */
- matching_memory = 0;
- if (GET_CODE (dst) == MEM)
- {
- if (rtx_equal_p (dst, src1))
- matching_memory = 1;
- else if (GET_RTX_CLASS (code) == RTX_COMM_ARITH
- && rtx_equal_p (dst, src2))
- matching_memory = 2;
- else
- dst = gen_reg_rtx (mode);
- }
-
/* Both source operands cannot be in memory. */
- if (GET_CODE (src1) == MEM && GET_CODE (src2) == MEM)
+ if (MEM_P (src1) && MEM_P (src2))
{
- if (matching_memory != 2)
- src2 = force_reg (mode, src2);
+ /* Optimization: Only read from memory once. */
+ if (rtx_equal_p (src1, src2))
+ {
+ src2 = force_reg (mode, src2);
+ src1 = src2;
+ }
else
- src1 = force_reg (mode, src1);
+ src2 = force_reg (mode, src2);
}
- /* If the operation is not commutable, source 1 cannot be a constant
- or non-matching memory. */
- if ((CONSTANT_P (src1)
- || (!matching_memory && GET_CODE (src1) == MEM))
- && GET_RTX_CLASS (code) != RTX_COMM_ARITH)
+ /* If the destination is memory, and we do not have matching source
+ operands, do things in registers. */
+ if (MEM_P (dst) && !rtx_equal_p (dst, src1))
+ dst = gen_reg_rtx (mode);
+
+ /* Source 1 cannot be a constant. */
+ if (CONSTANT_P (src1))
+ src1 = force_reg (mode, src1);
+
+ /* Source 1 cannot be a non-matching memory. */
+ if (MEM_P (src1) && !rtx_equal_p (dst, src1))
src1 = force_reg (mode, src1);
- src1 = operands[1] = src1;
- src2 = operands[2] = src2;
+ operands[1] = src1;
+ operands[2] = src2;
return dst;
}
appropriate constraints. */
int
-ix86_binary_operator_ok (enum rtx_code code,
- enum machine_mode mode ATTRIBUTE_UNUSED,
+ix86_binary_operator_ok (enum rtx_code code, enum machine_mode mode,
rtx operands[3])
{
+ rtx dst = operands[0];
+ rtx src1 = operands[1];
+ rtx src2 = operands[2];
+
/* Both source operands cannot be in memory. */
- if (GET_CODE (operands[1]) == MEM && GET_CODE (operands[2]) == MEM)
- return 0;
- /* If the operation is not commutable, source 1 cannot be a constant. */
- if (CONSTANT_P (operands[1]) && GET_RTX_CLASS (code) != RTX_COMM_ARITH)
+ if (MEM_P (src1) && MEM_P (src2))
return 0;
+
+ /* Canonicalize operand order for commutative operators. */
+ if (ix86_swap_binary_operands_p (code, mode, operands))
+ {
+ rtx temp = src1;
+ src1 = src2;
+ src2 = temp;
+ }
+
/* If the destination is memory, we must have a matching source operand. */
- if (GET_CODE (operands[0]) == MEM
- && ! (rtx_equal_p (operands[0], operands[1])
- || (GET_RTX_CLASS (code) == RTX_COMM_ARITH
- && rtx_equal_p (operands[0], operands[2]))))
+ if (MEM_P (dst) && !rtx_equal_p (dst, src1))
+ return 0;
+
+ /* Source 1 cannot be a constant. */
+ if (CONSTANT_P (src1))
return 0;
- /* If the operation is not commutable and the source 1 is memory, we must
- have a matching destination. */
- if (GET_CODE (operands[1]) == MEM
- && GET_RTX_CLASS (code) != RTX_COMM_ARITH
- && ! rtx_equal_p (operands[0], operands[1]))
+
+ /* Source 1 cannot be a non-matching memory. */
+ if (MEM_P (src1) && !rtx_equal_p (dst, src1))
return 0;
+
return 1;
}
rtx operands[2] ATTRIBUTE_UNUSED)
{
/* If one of operands is memory, source and destination must match. */
- if ((GET_CODE (operands[0]) == MEM
- || GET_CODE (operands[1]) == MEM)
+ if ((MEM_P (operands[0])
+ || MEM_P (operands[1]))
&& ! rtx_equal_p (operands[0], operands[1]))
return FALSE;
return TRUE;
}
+/* Post-reload splitter for converting an SF or DFmode value in an
+ SSE register into an unsigned SImode. */
+
+void
+ix86_split_convert_uns_si_sse (rtx operands[])
+{
+ enum machine_mode vecmode;
+ rtx value, large, zero_or_two31, input, two31, x;
+
+ large = operands[1];
+ zero_or_two31 = operands[2];
+ input = operands[3];
+ two31 = operands[4];
+ vecmode = GET_MODE (large);
+ value = gen_rtx_REG (vecmode, REGNO (operands[0]));
+
+ /* Load up the value into the low element. We must ensure that the other
+ elements are valid floats -- zero is the easiest such value. */
+ if (MEM_P (input))
+ {
+ if (vecmode == V4SFmode)
+ emit_insn (gen_vec_setv4sf_0 (value, CONST0_RTX (V4SFmode), input));
+ else
+ emit_insn (gen_sse2_loadlpd (value, CONST0_RTX (V2DFmode), input));
+ }
+ else
+ {
+ input = gen_rtx_REG (vecmode, REGNO (input));
+ emit_move_insn (value, CONST0_RTX (vecmode));
+ if (vecmode == V4SFmode)
+ emit_insn (gen_sse_movss (value, value, input));
+ else
+ emit_insn (gen_sse2_movsd (value, value, input));
+ }
+
+ emit_move_insn (large, two31);
+ emit_move_insn (zero_or_two31, MEM_P (two31) ? large : two31);
+
+ x = gen_rtx_fmt_ee (LE, vecmode, large, value);
+ emit_insn (gen_rtx_SET (VOIDmode, large, x));
+
+ x = gen_rtx_AND (vecmode, zero_or_two31, large);
+ emit_insn (gen_rtx_SET (VOIDmode, zero_or_two31, x));
+
+ x = gen_rtx_MINUS (vecmode, value, zero_or_two31);
+ emit_insn (gen_rtx_SET (VOIDmode, value, x));
+
+ large = gen_rtx_REG (V4SImode, REGNO (large));
+ emit_insn (gen_ashlv4si3 (large, large, GEN_INT (31)));
+
+ x = gen_rtx_REG (V4SImode, REGNO (value));
+ if (vecmode == V4SFmode)
+ emit_insn (gen_sse2_cvttps2dq (x, value));
+ else
+ emit_insn (gen_sse2_cvttpd2dq (x, value));
+ value = x;
+
+ emit_insn (gen_xorv4si3 (value, value, large));
+}
+
+/* Convert an unsigned DImode value into a DFmode, using only SSE.
+ Expects the 64-bit DImode to be supplied in a pair of integral
+ registers. Requires SSE2; will use SSE3 if available. For x86_32,
+ -mfpmath=sse, !optimize_size only. */
+
+void
+ix86_expand_convert_uns_didf_sse (rtx target, rtx input)
+{
+ REAL_VALUE_TYPE bias_lo_rvt, bias_hi_rvt;
+ rtx int_xmm, fp_xmm;
+ rtx biases, exponents;
+ rtx x;
+
+ int_xmm = gen_reg_rtx (V4SImode);
+ if (TARGET_INTER_UNIT_MOVES)
+ emit_insn (gen_movdi_to_sse (int_xmm, input));
+ else if (TARGET_SSE_SPLIT_REGS)
+ {
+ emit_insn (gen_rtx_CLOBBER (VOIDmode, int_xmm));
+ emit_move_insn (gen_lowpart (DImode, int_xmm), input);
+ }
+ else
+ {
+ x = gen_reg_rtx (V2DImode);
+ ix86_expand_vector_init_one_nonzero (false, V2DImode, x, input, 0);
+ emit_move_insn (int_xmm, gen_lowpart (V4SImode, x));
+ }
+
+ x = gen_rtx_CONST_VECTOR (V4SImode,
+ gen_rtvec (4, GEN_INT (0x43300000UL),
+ GEN_INT (0x45300000UL),
+ const0_rtx, const0_rtx));
+ exponents = validize_mem (force_const_mem (V4SImode, x));
+
+ /* int_xmm = {0x45300000UL, fp_xmm/hi, 0x43300000, fp_xmm/lo } */
+ emit_insn (gen_sse2_punpckldq (int_xmm, int_xmm, exponents));
+
+ /* Concatenating (juxtaposing) (0x43300000UL ## fp_value_low_xmm)
+ yields a valid DF value equal to (0x1.0p52 + double(fp_value_lo_xmm)).
+ Similarly (0x45300000UL ## fp_value_hi_xmm) yields
+ (0x1.0p84 + double(fp_value_hi_xmm)).
+ Note these exponents differ by 32. */
+
+ fp_xmm = copy_to_mode_reg (V2DFmode, gen_lowpart (V2DFmode, int_xmm));
+
+ /* Subtract off those 0x1.0p52 and 0x1.0p84 biases, to produce values
+ in [0,2**32-1] and [0]+[2**32,2**64-1] respectively. */
+ real_ldexp (&bias_lo_rvt, &dconst1, 52);
+ real_ldexp (&bias_hi_rvt, &dconst1, 84);
+ biases = const_double_from_real_value (bias_lo_rvt, DFmode);
+ x = const_double_from_real_value (bias_hi_rvt, DFmode);
+ biases = gen_rtx_CONST_VECTOR (V2DFmode, gen_rtvec (2, biases, x));
+ biases = validize_mem (force_const_mem (V2DFmode, biases));
+ emit_insn (gen_subv2df3 (fp_xmm, fp_xmm, biases));
+
+ /* Add the upper and lower DFmode values together. */
+ if (TARGET_SSE3)
+ emit_insn (gen_sse3_haddv2df3 (fp_xmm, fp_xmm, fp_xmm));
+ else
+ {
+ x = copy_to_mode_reg (V2DFmode, fp_xmm);
+ emit_insn (gen_sse2_unpckhpd (fp_xmm, fp_xmm, fp_xmm));
+ emit_insn (gen_addv2df3 (fp_xmm, fp_xmm, x));
+ }
+
+ ix86_expand_vector_extract (false, target, fp_xmm, 0);
+}
+
+/* Convert an unsigned SImode value into a DFmode. Only currently used
+ for SSE, but applicable anywhere. */
+
+void
+ix86_expand_convert_uns_sidf_sse (rtx target, rtx input)
+{
+ REAL_VALUE_TYPE TWO31r;
+ rtx x, fp;
+
+ x = expand_simple_binop (SImode, PLUS, input, GEN_INT (-2147483647 - 1),
+ NULL, 1, OPTAB_DIRECT);
+
+ fp = gen_reg_rtx (DFmode);
+ emit_insn (gen_floatsidf2 (fp, x));
+
+ real_ldexp (&TWO31r, &dconst1, 31);
+ x = const_double_from_real_value (TWO31r, DFmode);
+
+ x = expand_simple_binop (DFmode, PLUS, fp, x, target, 0, OPTAB_DIRECT);
+ if (x != target)
+ emit_move_insn (target, x);
+}
+
+/* Convert a signed DImode value into a DFmode. Only used for SSE in
+ 32-bit mode; otherwise we have a direct convert instruction. */
+
+void
+ix86_expand_convert_sign_didf_sse (rtx target, rtx input)
+{
+ REAL_VALUE_TYPE TWO32r;
+ rtx fp_lo, fp_hi, x;
+
+ fp_lo = gen_reg_rtx (DFmode);
+ fp_hi = gen_reg_rtx (DFmode);
+
+ emit_insn (gen_floatsidf2 (fp_hi, gen_highpart (SImode, input)));
+
+ real_ldexp (&TWO32r, &dconst1, 32);
+ x = const_double_from_real_value (TWO32r, DFmode);
+ fp_hi = expand_simple_binop (DFmode, MULT, fp_hi, x, fp_hi, 0, OPTAB_DIRECT);
+
+ ix86_expand_convert_uns_sidf_sse (fp_lo, gen_lowpart (SImode, input));
+
+ x = expand_simple_binop (DFmode, PLUS, fp_hi, fp_lo, target,
+ 0, OPTAB_DIRECT);
+ if (x != target)
+ emit_move_insn (target, x);
+}
+
+/* Convert an unsigned SImode value into a SFmode, using only SSE.
+ For x86_32, -mfpmath=sse, !optimize_size only. */
+void
+ix86_expand_convert_uns_sisf_sse (rtx target, rtx input)
+{
+ REAL_VALUE_TYPE ONE16r;
+ rtx fp_hi, fp_lo, int_hi, int_lo, x;
+
+ real_ldexp (&ONE16r, &dconst1, 16);
+ x = const_double_from_real_value (ONE16r, SFmode);
+ int_lo = expand_simple_binop (SImode, AND, input, GEN_INT(0xffff),
+ NULL, 0, OPTAB_DIRECT);
+ int_hi = expand_simple_binop (SImode, LSHIFTRT, input, GEN_INT(16),
+ NULL, 0, OPTAB_DIRECT);
+ fp_hi = gen_reg_rtx (SFmode);
+ fp_lo = gen_reg_rtx (SFmode);
+ emit_insn (gen_floatsisf2 (fp_hi, int_hi));
+ emit_insn (gen_floatsisf2 (fp_lo, int_lo));
+ fp_hi = expand_simple_binop (SFmode, MULT, fp_hi, x, fp_hi,
+ 0, OPTAB_DIRECT);
+ fp_hi = expand_simple_binop (SFmode, PLUS, fp_hi, fp_lo, target,
+ 0, OPTAB_DIRECT);
+ if (!rtx_equal_p (target, fp_hi))
+ emit_move_insn (target, fp_hi);
+}
+
+/* A subroutine of ix86_build_signbit_mask_vector. If VECT is true,
+ then replicate the value for all elements of the vector
+ register. */
+
+rtx
+ix86_build_const_vector (enum machine_mode mode, bool vect, rtx value)
+{
+ rtvec v;
+ switch (mode)
+ {
+ case SFmode:
+ if (vect)
+ v = gen_rtvec (4, value, value, value, value);
+ else
+ v = gen_rtvec (4, value, CONST0_RTX (SFmode),
+ CONST0_RTX (SFmode), CONST0_RTX (SFmode));
+ return gen_rtx_CONST_VECTOR (V4SFmode, v);
+
+ case DFmode:
+ if (vect)
+ v = gen_rtvec (2, value, value);
+ else
+ v = gen_rtvec (2, value, CONST0_RTX (DFmode));
+ return gen_rtx_CONST_VECTOR (V2DFmode, v);
+
+ default:
+ gcc_unreachable ();
+ }
+}
+
/* A subroutine of ix86_expand_fp_absneg_operator and copysign expanders.
Create a mask for the sign bit in MODE for an SSE register. If VECT is
true, then replicate the mask for all elements of the vector register.
enum machine_mode vec_mode;
HOST_WIDE_INT hi, lo;
int shift = 63;
- rtvec v;
+ rtx v;
rtx mask;
/* Find the sign bit, sign extended to 2*HWI. */
mask = immed_double_const (lo, hi, mode == SFmode ? SImode : DImode);
mask = gen_lowpart (mode, mask);
- if (mode == SFmode)
- {
- if (vect)
- v = gen_rtvec (4, mask, mask, mask, mask);
- else
- v = gen_rtvec (4, mask, CONST0_RTX (SFmode),
- CONST0_RTX (SFmode), CONST0_RTX (SFmode));
- vec_mode = V4SFmode;
- }
- else
- {
- if (vect)
- v = gen_rtvec (2, mask, mask);
- else
- v = gen_rtvec (2, mask, CONST0_RTX (DFmode));
- vec_mode = V2DFmode;
- }
-
- return force_reg (vec_mode, gen_rtx_CONST_VECTOR (vec_mode, v));
+ v = ix86_build_const_vector (mode, vect, mask);
+ vec_mode = (mode == SFmode) ? V4SFmode : V2DFmode;
+ return force_reg (vec_mode, v);
}
/* Generate code for floating point ABS or NEG. */
enum machine_mode
ix86_cc_mode (enum rtx_code code, rtx op0, rtx op1)
{
- if (SCALAR_FLOAT_MODE_P (GET_MODE (op0)))
- return ix86_fp_compare_mode (code);
+ enum machine_mode mode = GET_MODE (op0);
+
+ if (SCALAR_FLOAT_MODE_P (mode))
+ {
+ gcc_assert (!DECIMAL_FLOAT_MODE_P (mode));
+ return ix86_fp_compare_mode (code);
+ }
+
switch (code)
{
/* Only zero flag is needed. */
}
}
-/* Return true if we should use an FCOMI instruction for this fp comparison. */
+/* Split comparison code CODE into comparisons we can do using branch
+ instructions. BYPASS_CODE is comparison code for branch that will
+ branch around FIRST_CODE and SECOND_CODE. If some of branches
+ is not required, set value to UNKNOWN.
+ We never require more than two branches. */
-int
-ix86_use_fcomi_compare (enum rtx_code code ATTRIBUTE_UNUSED)
+void
+ix86_fp_comparison_codes (enum rtx_code code, enum rtx_code *bypass_code,
+ enum rtx_code *first_code,
+ enum rtx_code *second_code)
{
- enum rtx_code swapped_code = swap_condition (code);
- return ((ix86_fp_comparison_cost (code) == ix86_fp_comparison_fcomi_cost (code))
- || (ix86_fp_comparison_cost (swapped_code)
- == ix86_fp_comparison_fcomi_cost (swapped_code)));
-}
-
-/* Swap, force into registers, or otherwise massage the two operands
- to a fp comparison. The operands are updated in place; the new
- comparison code is returned. */
+ *first_code = code;
+ *bypass_code = UNKNOWN;
+ *second_code = UNKNOWN;
-static enum rtx_code
-ix86_prepare_fp_compare_args (enum rtx_code code, rtx *pop0, rtx *pop1)
-{
- enum machine_mode fpcmp_mode = ix86_fp_compare_mode (code);
- rtx op0 = *pop0, op1 = *pop1;
- enum machine_mode op_mode = GET_MODE (op0);
- int is_sse = TARGET_SSE_MATH && SSE_FLOAT_MODE_P (op_mode);
+ /* The fcomi comparison sets flags as follows:
- /* All of the unordered compare instructions only work on registers.
- The same is true of the fcomi compare instructions. The XFmode
- compare instructions require registers except when comparing
- against zero or when converting operand 1 from fixed point to
- floating point. */
+ cmp ZF PF CF
+ > 0 0 0
+ < 0 0 1
+ = 1 0 0
+ un 1 1 1 */
- if (!is_sse
- && (fpcmp_mode == CCFPUmode
- || (op_mode == XFmode
- && ! (standard_80387_constant_p (op0) == 1
- || standard_80387_constant_p (op1) == 1)
- && GET_CODE (op1) != FLOAT)
- || ix86_use_fcomi_compare (code)))
+ switch (code)
{
- op0 = force_reg (op_mode, op0);
- op1 = force_reg (op_mode, op1);
+ case GT: /* GTU - CF=0 & ZF=0 */
+ case GE: /* GEU - CF=0 */
+ case ORDERED: /* PF=0 */
+ case UNORDERED: /* PF=1 */
+ case UNEQ: /* EQ - ZF=1 */
+ case UNLT: /* LTU - CF=1 */
+ case UNLE: /* LEU - CF=1 | ZF=1 */
+ case LTGT: /* EQ - ZF=0 */
+ break;
+ case LT: /* LTU - CF=1 - fails on unordered */
+ *first_code = UNLT;
+ *bypass_code = UNORDERED;
+ break;
+ case LE: /* LEU - CF=1 | ZF=1 - fails on unordered */
+ *first_code = UNLE;
+ *bypass_code = UNORDERED;
+ break;
+ case EQ: /* EQ - ZF=1 - fails on unordered */
+ *first_code = UNEQ;
+ *bypass_code = UNORDERED;
+ break;
+ case NE: /* NE - ZF=0 - fails on unordered */
+ *first_code = LTGT;
+ *second_code = UNORDERED;
+ break;
+ case UNGE: /* GEU - CF=0 - fails on unordered */
+ *first_code = GE;
+ *second_code = UNORDERED;
+ break;
+ case UNGT: /* GTU - CF=0 & ZF=0 - fails on unordered */
+ *first_code = GT;
+ *second_code = UNORDERED;
+ break;
+ default:
+ gcc_unreachable ();
}
- else
- {
- /* %%% We only allow op1 in memory; op0 must be st(0). So swap
- things around if they appear profitable, otherwise force op0
- into a register. */
-
- if (standard_80387_constant_p (op0) == 0
- || (GET_CODE (op0) == MEM
- && ! (standard_80387_constant_p (op1) == 0
- || GET_CODE (op1) == MEM)))
- {
- rtx tmp;
- tmp = op0, op0 = op1, op1 = tmp;
- code = swap_condition (code);
- }
-
- if (GET_CODE (op0) != REG)
- op0 = force_reg (op_mode, op0);
-
- if (CONSTANT_P (op1))
- {
- int tmp = standard_80387_constant_p (op1);
- if (tmp == 0)
- op1 = validize_mem (force_const_mem (op_mode, op1));
- else if (tmp == 1)
- {
- if (TARGET_CMOVE)
- op1 = force_reg (op_mode, op1);
- }
- else
- op1 = force_reg (op_mode, op1);
- }
- }
-
- /* Try to rearrange the comparison to make it cheaper. */
- if (ix86_fp_comparison_cost (code)
- > ix86_fp_comparison_cost (swap_condition (code))
- && (GET_CODE (op1) == REG || !no_new_pseudos))
- {
- rtx tmp;
- tmp = op0, op0 = op1, op1 = tmp;
- code = swap_condition (code);
- if (GET_CODE (op0) != REG)
- op0 = force_reg (op_mode, op0);
- }
-
- *pop0 = op0;
- *pop1 = op1;
- return code;
-}
-
-/* Convert comparison codes we use to represent FP comparison to integer
- code that will result in proper branch. Return UNKNOWN if no such code
- is available. */
-
-enum rtx_code
-ix86_fp_compare_code_to_integer (enum rtx_code code)
-{
- switch (code)
- {
- case GT:
- return GTU;
- case GE:
- return GEU;
- case ORDERED:
- case UNORDERED:
- return code;
- break;
- case UNEQ:
- return EQ;
- break;
- case UNLT:
- return LTU;
- break;
- case UNLE:
- return LEU;
- break;
- case LTGT:
- return NE;
- break;
- default:
- return UNKNOWN;
- }
-}
-
-/* Split comparison code CODE into comparisons we can do using branch
- instructions. BYPASS_CODE is comparison code for branch that will
- branch around FIRST_CODE and SECOND_CODE. If some of branches
- is not required, set value to UNKNOWN.
- We never require more than two branches. */
-
-void
-ix86_fp_comparison_codes (enum rtx_code code, enum rtx_code *bypass_code,
- enum rtx_code *first_code,
- enum rtx_code *second_code)
-{
- *first_code = code;
- *bypass_code = UNKNOWN;
- *second_code = UNKNOWN;
-
- /* The fcomi comparison sets flags as follows:
-
- cmp ZF PF CF
- > 0 0 0
- < 0 0 1
- = 1 0 0
- un 1 1 1 */
-
- switch (code)
- {
- case GT: /* GTU - CF=0 & ZF=0 */
- case GE: /* GEU - CF=0 */
- case ORDERED: /* PF=0 */
- case UNORDERED: /* PF=1 */
- case UNEQ: /* EQ - ZF=1 */
- case UNLT: /* LTU - CF=1 */
- case UNLE: /* LEU - CF=1 | ZF=1 */
- case LTGT: /* EQ - ZF=0 */
- break;
- case LT: /* LTU - CF=1 - fails on unordered */
- *first_code = UNLT;
- *bypass_code = UNORDERED;
- break;
- case LE: /* LEU - CF=1 | ZF=1 - fails on unordered */
- *first_code = UNLE;
- *bypass_code = UNORDERED;
- break;
- case EQ: /* EQ - ZF=1 - fails on unordered */
- *first_code = UNEQ;
- *bypass_code = UNORDERED;
- break;
- case NE: /* NE - ZF=0 - fails on unordered */
- *first_code = LTGT;
- *second_code = UNORDERED;
- break;
- case UNGE: /* GEU - CF=0 - fails on unordered */
- *first_code = GE;
- *second_code = UNORDERED;
- break;
- case UNGT: /* GTU - CF=0 & ZF=0 - fails on unordered */
- *first_code = GT;
- *second_code = UNORDERED;
- break;
- default:
- gcc_unreachable ();
- }
- if (!TARGET_IEEE_FP)
+ if (!TARGET_IEEE_FP)
{
*second_code = UNKNOWN;
*bypass_code = UNKNOWN;
enum rtx_code bypass_code, first_code, second_code;
/* Return arbitrarily high cost when instruction is not preferred - this
avoids gcc from using it. */
- if (!TARGET_USE_SAHF && !optimize_size)
+ if (!(TARGET_SAHF && (TARGET_USE_SAHF || optimize_size)))
return 1024;
ix86_fp_comparison_codes (code, &bypass_code, &first_code, &second_code);
return (bypass_code != UNKNOWN || second_code != UNKNOWN) + 3;
return min;
}
-/* Generate insn patterns to do a floating point compare of OPERANDS. */
+/* Return true if we should use an FCOMI instruction for this
+ fp comparison. */
-static rtx
-ix86_expand_fp_compare (enum rtx_code code, rtx op0, rtx op1, rtx scratch,
- rtx *second_test, rtx *bypass_test)
+int
+ix86_use_fcomi_compare (enum rtx_code code ATTRIBUTE_UNUSED)
{
- enum machine_mode fpcmp_mode, intcmp_mode;
- rtx tmp, tmp2;
- int cost = ix86_fp_comparison_cost (code);
- enum rtx_code bypass_code, first_code, second_code;
+ enum rtx_code swapped_code = swap_condition (code);
- fpcmp_mode = ix86_fp_compare_mode (code);
- code = ix86_prepare_fp_compare_args (code, &op0, &op1);
+ return ((ix86_fp_comparison_cost (code)
+ == ix86_fp_comparison_fcomi_cost (code))
+ || (ix86_fp_comparison_cost (swapped_code)
+ == ix86_fp_comparison_fcomi_cost (swapped_code)));
+}
- if (second_test)
- *second_test = NULL_RTX;
- if (bypass_test)
- *bypass_test = NULL_RTX;
+/* Swap, force into registers, or otherwise massage the two operands
+ to a fp comparison. The operands are updated in place; the new
+ comparison code is returned. */
- ix86_fp_comparison_codes (code, &bypass_code, &first_code, &second_code);
+static enum rtx_code
+ix86_prepare_fp_compare_args (enum rtx_code code, rtx *pop0, rtx *pop1)
+{
+ enum machine_mode fpcmp_mode = ix86_fp_compare_mode (code);
+ rtx op0 = *pop0, op1 = *pop1;
+ enum machine_mode op_mode = GET_MODE (op0);
+ int is_sse = TARGET_SSE_MATH && SSE_FLOAT_MODE_P (op_mode);
- /* Do fcomi/sahf based test when profitable. */
- if ((bypass_code == UNKNOWN || bypass_test)
- && (second_code == UNKNOWN || second_test)
- && ix86_fp_comparison_arithmetics_cost (code) > cost)
- {
- if (TARGET_CMOVE)
- {
- tmp = gen_rtx_COMPARE (fpcmp_mode, op0, op1);
- tmp = gen_rtx_SET (VOIDmode, gen_rtx_REG (fpcmp_mode, FLAGS_REG),
- tmp);
- emit_insn (tmp);
- }
- else
- {
- tmp = gen_rtx_COMPARE (fpcmp_mode, op0, op1);
- tmp2 = gen_rtx_UNSPEC (HImode, gen_rtvec (1, tmp), UNSPEC_FNSTSW);
- if (!scratch)
- scratch = gen_reg_rtx (HImode);
- emit_insn (gen_rtx_SET (VOIDmode, scratch, tmp2));
- emit_insn (gen_x86_sahf_1 (scratch));
- }
+ /* All of the unordered compare instructions only work on registers.
+ The same is true of the fcomi compare instructions. The XFmode
+ compare instructions require registers except when comparing
+ against zero or when converting operand 1 from fixed point to
+ floating point. */
- /* The FP codes work out to act like unsigned. */
- intcmp_mode = fpcmp_mode;
- code = first_code;
- if (bypass_code != UNKNOWN)
- *bypass_test = gen_rtx_fmt_ee (bypass_code, VOIDmode,
- gen_rtx_REG (intcmp_mode, FLAGS_REG),
- const0_rtx);
- if (second_code != UNKNOWN)
- *second_test = gen_rtx_fmt_ee (second_code, VOIDmode,
- gen_rtx_REG (intcmp_mode, FLAGS_REG),
- const0_rtx);
+ if (!is_sse
+ && (fpcmp_mode == CCFPUmode
+ || (op_mode == XFmode
+ && ! (standard_80387_constant_p (op0) == 1
+ || standard_80387_constant_p (op1) == 1)
+ && GET_CODE (op1) != FLOAT)
+ || ix86_use_fcomi_compare (code)))
+ {
+ op0 = force_reg (op_mode, op0);
+ op1 = force_reg (op_mode, op1);
}
else
{
- /* Sadness wrt reg-stack pops killing fpsr -- gotta get fnstsw first. */
- tmp = gen_rtx_COMPARE (fpcmp_mode, op0, op1);
- tmp2 = gen_rtx_UNSPEC (HImode, gen_rtvec (1, tmp), UNSPEC_FNSTSW);
- if (!scratch)
- scratch = gen_reg_rtx (HImode);
- emit_insn (gen_rtx_SET (VOIDmode, scratch, tmp2));
+ /* %%% We only allow op1 in memory; op0 must be st(0). So swap
+ things around if they appear profitable, otherwise force op0
+ into a register. */
- /* In the unordered case, we have to check C2 for NaN's, which
- doesn't happen to work out to anything nice combination-wise.
- So do some bit twiddling on the value we've got in AH to come
- up with an appropriate set of condition codes. */
+ if (standard_80387_constant_p (op0) == 0
+ || (MEM_P (op0)
+ && ! (standard_80387_constant_p (op1) == 0
+ || MEM_P (op1))))
+ {
+ rtx tmp;
+ tmp = op0, op0 = op1, op1 = tmp;
+ code = swap_condition (code);
+ }
- intcmp_mode = CCNOmode;
- switch (code)
+ if (!REG_P (op0))
+ op0 = force_reg (op_mode, op0);
+
+ if (CONSTANT_P (op1))
{
- case GT:
- case UNGT:
- if (code == GT || !TARGET_IEEE_FP)
+ int tmp = standard_80387_constant_p (op1);
+ if (tmp == 0)
+ op1 = validize_mem (force_const_mem (op_mode, op1));
+ else if (tmp == 1)
{
- emit_insn (gen_testqi_ext_ccno_0 (scratch, GEN_INT (0x45)));
- code = EQ;
+ if (TARGET_CMOVE)
+ op1 = force_reg (op_mode, op1);
}
else
- {
- emit_insn (gen_andqi_ext_0 (scratch, scratch, GEN_INT (0x45)));
- emit_insn (gen_addqi_ext_1 (scratch, scratch, constm1_rtx));
- emit_insn (gen_cmpqi_ext_3 (scratch, GEN_INT (0x44)));
+ op1 = force_reg (op_mode, op1);
+ }
+ }
+
+ /* Try to rearrange the comparison to make it cheaper. */
+ if (ix86_fp_comparison_cost (code)
+ > ix86_fp_comparison_cost (swap_condition (code))
+ && (REG_P (op1) || !no_new_pseudos))
+ {
+ rtx tmp;
+ tmp = op0, op0 = op1, op1 = tmp;
+ code = swap_condition (code);
+ if (!REG_P (op0))
+ op0 = force_reg (op_mode, op0);
+ }
+
+ *pop0 = op0;
+ *pop1 = op1;
+ return code;
+}
+
+/* Convert comparison codes we use to represent FP comparison to integer
+ code that will result in proper branch. Return UNKNOWN if no such code
+ is available. */
+
+enum rtx_code
+ix86_fp_compare_code_to_integer (enum rtx_code code)
+{
+ switch (code)
+ {
+ case GT:
+ return GTU;
+ case GE:
+ return GEU;
+ case ORDERED:
+ case UNORDERED:
+ return code;
+ break;
+ case UNEQ:
+ return EQ;
+ break;
+ case UNLT:
+ return LTU;
+ break;
+ case UNLE:
+ return LEU;
+ break;
+ case LTGT:
+ return NE;
+ break;
+ default:
+ return UNKNOWN;
+ }
+}
+
+/* Generate insn patterns to do a floating point compare of OPERANDS. */
+
+static rtx
+ix86_expand_fp_compare (enum rtx_code code, rtx op0, rtx op1, rtx scratch,
+ rtx *second_test, rtx *bypass_test)
+{
+ enum machine_mode fpcmp_mode, intcmp_mode;
+ rtx tmp, tmp2;
+ int cost = ix86_fp_comparison_cost (code);
+ enum rtx_code bypass_code, first_code, second_code;
+
+ fpcmp_mode = ix86_fp_compare_mode (code);
+ code = ix86_prepare_fp_compare_args (code, &op0, &op1);
+
+ if (second_test)
+ *second_test = NULL_RTX;
+ if (bypass_test)
+ *bypass_test = NULL_RTX;
+
+ ix86_fp_comparison_codes (code, &bypass_code, &first_code, &second_code);
+
+ /* Do fcomi/sahf based test when profitable. */
+ if ((TARGET_CMOVE || TARGET_SAHF)
+ && (bypass_code == UNKNOWN || bypass_test)
+ && (second_code == UNKNOWN || second_test)
+ && ix86_fp_comparison_arithmetics_cost (code) > cost)
+ {
+ if (TARGET_CMOVE)
+ {
+ tmp = gen_rtx_COMPARE (fpcmp_mode, op0, op1);
+ tmp = gen_rtx_SET (VOIDmode, gen_rtx_REG (fpcmp_mode, FLAGS_REG),
+ tmp);
+ emit_insn (tmp);
+ }
+ else
+ {
+ tmp = gen_rtx_COMPARE (fpcmp_mode, op0, op1);
+ tmp2 = gen_rtx_UNSPEC (HImode, gen_rtvec (1, tmp), UNSPEC_FNSTSW);
+ if (!scratch)
+ scratch = gen_reg_rtx (HImode);
+ emit_insn (gen_rtx_SET (VOIDmode, scratch, tmp2));
+ emit_insn (gen_x86_sahf_1 (scratch));
+ }
+
+ /* The FP codes work out to act like unsigned. */
+ intcmp_mode = fpcmp_mode;
+ code = first_code;
+ if (bypass_code != UNKNOWN)
+ *bypass_test = gen_rtx_fmt_ee (bypass_code, VOIDmode,
+ gen_rtx_REG (intcmp_mode, FLAGS_REG),
+ const0_rtx);
+ if (second_code != UNKNOWN)
+ *second_test = gen_rtx_fmt_ee (second_code, VOIDmode,
+ gen_rtx_REG (intcmp_mode, FLAGS_REG),
+ const0_rtx);
+ }
+ else
+ {
+ /* Sadness wrt reg-stack pops killing fpsr -- gotta get fnstsw first. */
+ tmp = gen_rtx_COMPARE (fpcmp_mode, op0, op1);
+ tmp2 = gen_rtx_UNSPEC (HImode, gen_rtvec (1, tmp), UNSPEC_FNSTSW);
+ if (!scratch)
+ scratch = gen_reg_rtx (HImode);
+ emit_insn (gen_rtx_SET (VOIDmode, scratch, tmp2));
+
+ /* In the unordered case, we have to check C2 for NaN's, which
+ doesn't happen to work out to anything nice combination-wise.
+ So do some bit twiddling on the value we've got in AH to come
+ up with an appropriate set of condition codes. */
+
+ intcmp_mode = CCNOmode;
+ switch (code)
+ {
+ case GT:
+ case UNGT:
+ if (code == GT || !TARGET_IEEE_FP)
+ {
+ emit_insn (gen_testqi_ext_ccno_0 (scratch, GEN_INT (0x45)));
+ code = EQ;
+ }
+ else
+ {
+ emit_insn (gen_andqi_ext_0 (scratch, scratch, GEN_INT (0x45)));
+ emit_insn (gen_addqi_ext_1 (scratch, scratch, constm1_rtx));
+ emit_insn (gen_cmpqi_ext_3 (scratch, GEN_INT (0x44)));
intcmp_mode = CCmode;
code = GEU;
}
ix86_compare_emitted = NULL_RTX;
}
else if (SCALAR_FLOAT_MODE_P (GET_MODE (op0)))
- ret = ix86_expand_fp_compare (code, op0, op1, NULL_RTX,
- second_test, bypass_test);
+ {
+ gcc_assert (!DECIMAL_FLOAT_MODE_P (GET_MODE (op0)));
+ ret = ix86_expand_fp_compare (code, op0, op1, NULL_RTX,
+ second_test, bypass_test);
+ }
else
ret = ix86_expand_int_compare (code, op0, op1);
op1 is a constant and the low word is zero, then we can just
examine the high word. */
- if (GET_CODE (hi[1]) == CONST_INT && lo[1] == const0_rtx)
+ if (CONST_INT_P (hi[1]) && lo[1] == const0_rtx)
switch (code)
{
case LT: case LTU: case GE: case GEU:
enum machine_mode mode =
GET_MODE (op0) != VOIDmode ? GET_MODE (op0) : GET_MODE (op1);
- /* Do not handle DImode compares that go through special path. Also we can't
- deal with FP compares yet. This is possible to add. */
+ /* Do not handle DImode compares that go through special path.
+ Also we can't deal with FP compares yet. This is possible to add. */
if (mode == (TARGET_64BIT ? TImode : DImode))
return false;
- if (FLOAT_MODE_P (mode))
+
+ if (SCALAR_FLOAT_MODE_P (mode))
{
rtx second_test = NULL, bypass_test = NULL;
rtx compare_op, compare_seq;
- /* Shortcut: following common codes never translate into carry flag compares. */
+ gcc_assert (!DECIMAL_FLOAT_MODE_P (mode));
+
+ /* Shortcut: following common codes never translate
+ into carry flag compares. */
if (code == EQ || code == NE || code == UNEQ || code == LTGT
|| code == ORDERED || code == UNORDERED)
return false;
/* Convert a>b into b<a or a>=b-1. */
case GTU:
case LEU:
- if (GET_CODE (op1) == CONST_INT)
+ if (CONST_INT_P (op1))
{
op1 = gen_int_mode (INTVAL (op1) + 1, GET_MODE (op0));
/* Bail out on overflow. We still can swap operands but that
if ((mode != HImode || TARGET_FAST_PREFIX)
&& (mode != (TARGET_64BIT ? TImode : DImode))
- && GET_CODE (operands[2]) == CONST_INT
- && GET_CODE (operands[3]) == CONST_INT)
+ && CONST_INT_P (operands[2])
+ && CONST_INT_P (operands[3]))
{
rtx out = operands[0];
HOST_WIDE_INT ct = INTVAL (operands[2]);
if (diff < 0)
{
+ enum machine_mode cmp_mode = GET_MODE (ix86_compare_op0);
+
HOST_WIDE_INT tmp;
tmp = ct, ct = cf, cf = tmp;
diff = -diff;
- if (FLOAT_MODE_P (GET_MODE (ix86_compare_op0)))
+
+ if (SCALAR_FLOAT_MODE_P (cmp_mode))
{
+ gcc_assert (!DECIMAL_FLOAT_MODE_P (cmp_mode));
+
/* We may be reversing unordered compare to normal compare, that
is not valid in general (we may convert non-trapping condition
to trapping one), however on i386 we currently emit all
compare_code = UNKNOWN;
if (GET_MODE_CLASS (GET_MODE (ix86_compare_op0)) == MODE_INT
- && GET_CODE (ix86_compare_op1) == CONST_INT)
+ && CONST_INT_P (ix86_compare_op1))
{
if (ix86_compare_op1 == const0_rtx
&& (code == LT || code == GE))
{
if (cf == 0)
{
+ enum machine_mode cmp_mode = GET_MODE (ix86_compare_op0);
+
cf = ct;
ct = 0;
- if (FLOAT_MODE_P (GET_MODE (ix86_compare_op0)))
- /* We may be reversing unordered compare to normal compare,
- that is not valid in general (we may convert non-trapping
- condition to trapping one), however on i386 we currently
- emit all comparisons unordered. */
- code = reverse_condition_maybe_unordered (code);
+
+ if (SCALAR_FLOAT_MODE_P (cmp_mode))
+ {
+ gcc_assert (!DECIMAL_FLOAT_MODE_P (cmp_mode));
+
+ /* We may be reversing unordered compare to normal compare,
+ that is not valid in general (we may convert non-trapping
+ condition to trapping one), however on i386 we currently
+ emit all comparisons unordered. */
+ code = reverse_condition_maybe_unordered (code);
+ }
else
{
code = reverse_condition (code);
/* If one of the two operands is an interesting constant, load a
constant with the above and mask it in with a logical operation. */
- if (GET_CODE (operands[2]) == CONST_INT)
+ if (CONST_INT_P (operands[2]))
{
var = operands[3];
if (INTVAL (operands[2]) == 0 && operands[3] != constm1_rtx)
else
return 0; /* FAIL */
}
- else if (GET_CODE (operands[3]) == CONST_INT)
+ else if (CONST_INT_P (operands[3]))
{
var = operands[2];
if (INTVAL (operands[3]) == 0 && operands[2] != constm1_rtx)
case V4SImode:
if (high_p)
unpack = gen_vec_interleave_highv4si;
- else
+ else
unpack = gen_vec_interleave_lowv4si;
break;
default:
- gcc_unreachable ();
+ gcc_unreachable ();
}
dest = gen_lowpart (imode, operands[0]);
else
size = (GET_MODE_SIZE (mode) + 4) / 8;
- gcc_assert (GET_CODE (operand) != REG || !MMX_REGNO_P (REGNO (operand)));
+ gcc_assert (!REG_P (operand) || !MMX_REGNO_P (REGNO (operand)));
gcc_assert (size >= 2 && size <= 3);
/* Optimize constant pool reference to immediates. This is used by fp
moves, that force all constants to memory to allow combining. */
- if (GET_CODE (operand) == MEM && MEM_READONLY_P (operand))
+ if (MEM_P (operand) && MEM_READONLY_P (operand))
{
rtx tmp = maybe_get_pool_constant (operand);
if (tmp)
operand = tmp;
}
- if (GET_CODE (operand) == MEM && !offsettable_memref_p (operand))
+ if (MEM_P (operand) && !offsettable_memref_p (operand))
{
/* The only non-offsetable memories we handle are pushes. */
int ok = push_operand (operand, VOIDmode);
/* Optimize constant pool reference to immediates. This is used by
fp moves, that force all constants to memory to allow combining. */
- if (GET_CODE (operands[1]) == MEM
+ if (MEM_P (operands[1])
&& GET_CODE (XEXP (operands[1], 0)) == SYMBOL_REF
&& CONSTANT_POOL_ADDRESS_P (XEXP (operands[1], 0)))
operands[1] = get_pool_constant (XEXP (operands[1], 0));
if (push_operand (operands[0], VOIDmode))
push = 1;
else
- gcc_assert (GET_CODE (operands[0]) != MEM
+ gcc_assert (!MEM_P (operands[0])
|| offsettable_memref_p (operands[0]));
nparts = ix86_split_to_parts (operands[1], part[1], GET_MODE (operands[0]));
ix86_split_to_parts (operands[0], part[0], GET_MODE (operands[0]));
/* When emitting push, take care for source operands on the stack. */
- if (push && GET_CODE (operands[1]) == MEM
+ if (push && MEM_P (operands[1])
&& reg_overlap_mentioned_p (stack_pointer_rtx, operands[1]))
{
if (nparts == 3)
/* We need to do copy in the right order in case an address register
of the source overlaps the destination. */
- if (REG_P (part[0][0]) && GET_CODE (part[1][0]) == MEM)
+ if (REG_P (part[0][0]) && MEM_P (part[1][0]))
{
if (reg_overlap_mentioned_p (part[0][0], XEXP (part[1][0], 0)))
collisions++;
/* If optimizing for size, attempt to locally unCSE nonzero constants. */
if (optimize_size)
{
- if (GET_CODE (operands[5]) == CONST_INT
+ if (CONST_INT_P (operands[5])
&& operands[5] != const0_rtx
&& REG_P (operands[2]))
{
- if (GET_CODE (operands[6]) == CONST_INT
+ if (CONST_INT_P (operands[6])
&& INTVAL (operands[6]) == INTVAL (operands[5]))
operands[6] = operands[2];
if (nparts == 3
- && GET_CODE (operands[7]) == CONST_INT
+ && CONST_INT_P (operands[7])
&& INTVAL (operands[7]) == INTVAL (operands[5]))
operands[7] = operands[2];
}
if (nparts == 3
- && GET_CODE (operands[6]) == CONST_INT
+ && CONST_INT_P (operands[6])
&& operands[6] != const0_rtx
&& REG_P (operands[3])
- && GET_CODE (operands[7]) == CONST_INT
+ && CONST_INT_P (operands[7])
&& INTVAL (operands[7]) == INTVAL (operands[6]))
operands[7] = operands[3];
}
int count;
const int single_width = mode == DImode ? 32 : 64;
- if (GET_CODE (operands[2]) == CONST_INT)
+ if (CONST_INT_P (operands[2]))
{
(mode == DImode ? split_di : split_ti) (operands, 2, low, high);
count = INTVAL (operands[2]) & (single_width * 2 - 1);
int count;
const int single_width = mode == DImode ? 32 : 64;
- if (GET_CODE (operands[2]) == CONST_INT)
+ if (CONST_INT_P (operands[2]))
{
(mode == DImode ? split_di : split_ti) (operands, 2, low, high);
count = INTVAL (operands[2]) & (single_width * 2 - 1);
int count;
const int single_width = mode == DImode ? 32 : 64;
- if (GET_CODE (operands[2]) == CONST_INT)
+ if (CONST_INT_P (operands[2]))
{
(mode == DImode ? split_di : split_ti) (operands, 2, low, high);
count = INTVAL (operands[2]) & (single_width * 2 - 1);
}
}
+/* Predict just emitted jump instruction to be taken with probability PROB. */
+static void
+predict_jump (int prob)
+{
+ rtx insn = get_last_insn ();
+ gcc_assert (JUMP_P (insn));
+ REG_NOTES (insn)
+ = gen_rtx_EXPR_LIST (REG_BR_PROB,
+ GEN_INT (prob),
+ REG_NOTES (insn));
+}
+
/* Helper function for the string operations below. Dest VARIABLE whether
it is aligned to VALUE bytes. If true, jump to the label. */
static rtx
-ix86_expand_aligntest (rtx variable, int value)
+ix86_expand_aligntest (rtx variable, int value, bool epilogue)
{
rtx label = gen_label_rtx ();
rtx tmpcount = gen_reg_rtx (GET_MODE (variable));
emit_insn (gen_andsi3 (tmpcount, variable, GEN_INT (value)));
emit_cmp_and_jump_insns (tmpcount, const0_rtx, EQ, 0, GET_MODE (variable),
1, label);
+ if (epilogue)
+ predict_jump (REG_BR_PROB_BASE * 50 / 100);
+ else
+ predict_jump (REG_BR_PROB_BASE * 90 / 100);
return label;
}
return r;
}
-/* Expand string move (memcpy) operation. Use i386 string operations when
- profitable. expand_clrmem contains similar code. */
-int
-ix86_expand_movmem (rtx dst, rtx src, rtx count_exp, rtx align_exp)
+/* Divide COUNTREG by SCALE. */
+static rtx
+scale_counter (rtx countreg, int scale)
{
- rtx srcreg, destreg, countreg, srcexp, destexp;
- enum machine_mode counter_mode;
- HOST_WIDE_INT align = 0;
- unsigned HOST_WIDE_INT count = 0;
+ rtx sc;
+ rtx piece_size_mask;
- if (GET_CODE (align_exp) == CONST_INT)
- align = INTVAL (align_exp);
+ if (scale == 1)
+ return countreg;
+ if (CONST_INT_P (countreg))
+ return GEN_INT (INTVAL (countreg) / scale);
+ gcc_assert (REG_P (countreg));
- /* Can't use any of this if the user has appropriated esi or edi. */
- if (global_regs[4] || global_regs[5])
- return 0;
+ piece_size_mask = GEN_INT (scale - 1);
+ sc = expand_simple_binop (GET_MODE (countreg), LSHIFTRT, countreg,
+ GEN_INT (exact_log2 (scale)),
+ NULL, 1, OPTAB_DIRECT);
+ return sc;
+}
- /* This simple hack avoids all inlining code and simplifies code below. */
- if (!TARGET_ALIGN_STRINGOPS)
- align = 64;
+/* Return mode for the memcpy/memset loop counter. Prefer SImode over
+ DImode for constant loop counts. */
- if (GET_CODE (count_exp) == CONST_INT)
+static enum machine_mode
+counter_mode (rtx count_exp)
+{
+ if (GET_MODE (count_exp) != VOIDmode)
+ return GET_MODE (count_exp);
+ if (GET_CODE (count_exp) != CONST_INT)
+ return Pmode;
+ if (TARGET_64BIT && (INTVAL (count_exp) & ~0xffffffff))
+ return DImode;
+ return SImode;
+}
+
+/* When SRCPTR is non-NULL, output simple loop to move memory
+ pointer to SRCPTR to DESTPTR via chunks of MODE unrolled UNROLL times,
+ overall size is COUNT specified in bytes. When SRCPTR is NULL, output the
+ equivalent loop to set memory by VALUE (supposed to be in MODE).
+
+ The size is rounded down to whole number of chunk size moved at once.
+ SRCMEM and DESTMEM provide MEMrtx to feed proper aliasing info. */
+
+
+static void
+expand_set_or_movmem_via_loop (rtx destmem, rtx srcmem,
+ rtx destptr, rtx srcptr, rtx value,
+ rtx count, enum machine_mode mode, int unroll,
+ int expected_size)
+{
+ rtx out_label, top_label, iter, tmp;
+ enum machine_mode iter_mode = counter_mode (count);
+ rtx piece_size = GEN_INT (GET_MODE_SIZE (mode) * unroll);
+ rtx piece_size_mask = GEN_INT (~((GET_MODE_SIZE (mode) * unroll) - 1));
+ rtx size;
+ rtx x_addr;
+ rtx y_addr;
+ int i;
+
+ top_label = gen_label_rtx ();
+ out_label = gen_label_rtx ();
+ iter = gen_reg_rtx (iter_mode);
+
+ size = expand_simple_binop (iter_mode, AND, count, piece_size_mask,
+ NULL, 1, OPTAB_DIRECT);
+ /* Those two should combine. */
+ if (piece_size == const1_rtx)
{
- count = INTVAL (count_exp);
- if (!TARGET_INLINE_ALL_STRINGOPS && count > 64)
- return 0;
+ emit_cmp_and_jump_insns (size, const0_rtx, EQ, NULL_RTX, iter_mode,
+ true, out_label);
+ predict_jump (REG_BR_PROB_BASE * 10 / 100);
}
+ emit_move_insn (iter, const0_rtx);
- /* Figure out proper mode for counter. For 32bits it is always SImode,
- for 64bits use SImode when possible, otherwise DImode.
- Set count to number of bytes copied when known at compile time. */
- if (!TARGET_64BIT
- || GET_MODE (count_exp) == SImode
- || x86_64_zext_immediate_operand (count_exp, VOIDmode))
- counter_mode = SImode;
- else
- counter_mode = DImode;
+ emit_label (top_label);
- gcc_assert (counter_mode == SImode || counter_mode == DImode);
+ tmp = convert_modes (Pmode, iter_mode, iter, true);
+ x_addr = gen_rtx_PLUS (Pmode, destptr, tmp);
+ destmem = change_address (destmem, mode, x_addr);
- destreg = copy_to_mode_reg (Pmode, XEXP (dst, 0));
- if (destreg != XEXP (dst, 0))
- dst = replace_equiv_address_nv (dst, destreg);
- srcreg = copy_to_mode_reg (Pmode, XEXP (src, 0));
- if (srcreg != XEXP (src, 0))
- src = replace_equiv_address_nv (src, srcreg);
-
- /* When optimizing for size emit simple rep ; movsb instruction for
- counts not divisible by 4, except when (movsl;)*(movsw;)?(movsb;)?
- sequence is shorter than mov{b,l} $count, %{ecx,cl}; rep; movsb.
- Sice of (movsl;)*(movsw;)?(movsb;)? sequence is
- count / 4 + (count & 3), the other sequence is either 4 or 7 bytes,
- but we don't know whether upper 24 (resp. 56) bits of %ecx will be
- known to be zero or not. The rep; movsb sequence causes higher
- register pressure though, so take that into account. */
-
- if ((!optimize || optimize_size)
- && (count == 0
- || ((count & 0x03)
- && (!optimize_size
- || count > 5 * 4
- || (count & 3) + count / 4 > 6))))
- {
- emit_insn (gen_cld ());
- countreg = ix86_zero_extend_to_Pmode (count_exp);
- destexp = gen_rtx_PLUS (Pmode, destreg, countreg);
- srcexp = gen_rtx_PLUS (Pmode, srcreg, countreg);
- emit_insn (gen_rep_mov (destreg, dst, srcreg, src, countreg,
- destexp, srcexp));
- }
-
- /* For constant aligned (or small unaligned) copies use rep movsl
- followed by code copying the rest. For PentiumPro ensure 8 byte
- alignment to allow rep movsl acceleration. */
-
- else if (count != 0
- && (align >= 8
- || (!TARGET_PENTIUMPRO && !TARGET_64BIT && align >= 4)
- || optimize_size || count < (unsigned int) 64))
- {
- unsigned HOST_WIDE_INT offset = 0;
- int size = TARGET_64BIT && !optimize_size ? 8 : 4;
- rtx srcmem, dstmem;
-
- emit_insn (gen_cld ());
- if (count & ~(size - 1))
- {
- if ((TARGET_SINGLE_STRINGOP || optimize_size) && count < 5 * 4)
- {
- enum machine_mode movs_mode = size == 4 ? SImode : DImode;
+ if (srcmem)
+ {
+ y_addr = gen_rtx_PLUS (Pmode, srcptr, copy_rtx (tmp));
+ srcmem = change_address (srcmem, mode, y_addr);
- while (offset < (count & ~(size - 1)))
+ /* When unrolling for chips that reorder memory reads and writes,
+ we can save registers by using single temporary.
+ Also using 4 temporaries is overkill in 32bit mode. */
+ if (!TARGET_64BIT && 0)
+ {
+ for (i = 0; i < unroll; i++)
+ {
+ if (i)
+ {
+ destmem =
+ adjust_address (copy_rtx (destmem), mode, GET_MODE_SIZE (mode));
+ srcmem =
+ adjust_address (copy_rtx (srcmem), mode, GET_MODE_SIZE (mode));
+ }
+ emit_move_insn (destmem, srcmem);
+ }
+ }
+ else
+ {
+ rtx tmpreg[4];
+ gcc_assert (unroll <= 4);
+ for (i = 0; i < unroll; i++)
+ {
+ tmpreg[i] = gen_reg_rtx (mode);
+ if (i)
{
- srcmem = adjust_automodify_address_nv (src, movs_mode,
- srcreg, offset);
- dstmem = adjust_automodify_address_nv (dst, movs_mode,
- destreg, offset);
- emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem));
- offset += size;
+ srcmem =
+ adjust_address (copy_rtx (srcmem), mode, GET_MODE_SIZE (mode));
}
+ emit_move_insn (tmpreg[i], srcmem);
+ }
+ for (i = 0; i < unroll; i++)
+ {
+ if (i)
+ {
+ destmem =
+ adjust_address (copy_rtx (destmem), mode, GET_MODE_SIZE (mode));
+ }
+ emit_move_insn (destmem, tmpreg[i]);
+ }
+ }
+ }
+ else
+ for (i = 0; i < unroll; i++)
+ {
+ if (i)
+ destmem =
+ adjust_address (copy_rtx (destmem), mode, GET_MODE_SIZE (mode));
+ emit_move_insn (destmem, value);
+ }
+
+ tmp = expand_simple_binop (iter_mode, PLUS, iter, piece_size, iter,
+ true, OPTAB_LIB_WIDEN);
+ if (tmp != iter)
+ emit_move_insn (iter, tmp);
+
+ emit_cmp_and_jump_insns (iter, size, LT, NULL_RTX, iter_mode,
+ true, top_label);
+ if (expected_size != -1)
+ {
+ expected_size /= GET_MODE_SIZE (mode) * unroll;
+ if (expected_size == 0)
+ predict_jump (0);
+ else if (expected_size > REG_BR_PROB_BASE)
+ predict_jump (REG_BR_PROB_BASE - 1);
+ else
+ predict_jump (REG_BR_PROB_BASE - (REG_BR_PROB_BASE + expected_size / 2) / expected_size);
+ }
+ else
+ predict_jump (REG_BR_PROB_BASE * 80 / 100);
+ iter = ix86_zero_extend_to_Pmode (iter);
+ tmp = expand_simple_binop (Pmode, PLUS, destptr, iter, destptr,
+ true, OPTAB_LIB_WIDEN);
+ if (tmp != destptr)
+ emit_move_insn (destptr, tmp);
+ if (srcptr)
+ {
+ tmp = expand_simple_binop (Pmode, PLUS, srcptr, iter, srcptr,
+ true, OPTAB_LIB_WIDEN);
+ if (tmp != srcptr)
+ emit_move_insn (srcptr, tmp);
+ }
+ emit_label (out_label);
+}
+
+/* Output "rep; mov" instruction.
+ Arguments have same meaning as for previous function */
+static void
+expand_movmem_via_rep_mov (rtx destmem, rtx srcmem,
+ rtx destptr, rtx srcptr,
+ rtx count,
+ enum machine_mode mode)
+{
+ rtx destexp;
+ rtx srcexp;
+ rtx countreg;
+
+ /* If the size is known, it is shorter to use rep movs. */
+ if (mode == QImode && CONST_INT_P (count)
+ && !(INTVAL (count) & 3))
+ mode = SImode;
+
+ if (destptr != XEXP (destmem, 0) || GET_MODE (destmem) != BLKmode)
+ destmem = adjust_automodify_address_nv (destmem, BLKmode, destptr, 0);
+ if (srcptr != XEXP (srcmem, 0) || GET_MODE (srcmem) != BLKmode)
+ srcmem = adjust_automodify_address_nv (srcmem, BLKmode, srcptr, 0);
+ countreg = ix86_zero_extend_to_Pmode (scale_counter (count, GET_MODE_SIZE (mode)));
+ if (mode != QImode)
+ {
+ destexp = gen_rtx_ASHIFT (Pmode, countreg,
+ GEN_INT (exact_log2 (GET_MODE_SIZE (mode))));
+ destexp = gen_rtx_PLUS (Pmode, destexp, destptr);
+ srcexp = gen_rtx_ASHIFT (Pmode, countreg,
+ GEN_INT (exact_log2 (GET_MODE_SIZE (mode))));
+ srcexp = gen_rtx_PLUS (Pmode, srcexp, srcptr);
+ }
+ else
+ {
+ destexp = gen_rtx_PLUS (Pmode, destptr, countreg);
+ srcexp = gen_rtx_PLUS (Pmode, srcptr, countreg);
+ }
+ emit_insn (gen_rep_mov (destptr, destmem, srcptr, srcmem, countreg,
+ destexp, srcexp));
+}
+
+/* Output "rep; stos" instruction.
+ Arguments have same meaning as for previous function */
+static void
+expand_setmem_via_rep_stos (rtx destmem, rtx destptr, rtx value,
+ rtx count,
+ enum machine_mode mode)
+{
+ rtx destexp;
+ rtx countreg;
+
+ if (destptr != XEXP (destmem, 0) || GET_MODE (destmem) != BLKmode)
+ destmem = adjust_automodify_address_nv (destmem, BLKmode, destptr, 0);
+ value = force_reg (mode, gen_lowpart (mode, value));
+ countreg = ix86_zero_extend_to_Pmode (scale_counter (count, GET_MODE_SIZE (mode)));
+ if (mode != QImode)
+ {
+ destexp = gen_rtx_ASHIFT (Pmode, countreg,
+ GEN_INT (exact_log2 (GET_MODE_SIZE (mode))));
+ destexp = gen_rtx_PLUS (Pmode, destexp, destptr);
+ }
+ else
+ destexp = gen_rtx_PLUS (Pmode, destptr, countreg);
+ emit_insn (gen_rep_stos (destptr, countreg, destmem, value, destexp));
+}
+
+static void
+emit_strmov (rtx destmem, rtx srcmem,
+ rtx destptr, rtx srcptr, enum machine_mode mode, int offset)
+{
+ rtx src = adjust_automodify_address_nv (srcmem, mode, srcptr, offset);
+ rtx dest = adjust_automodify_address_nv (destmem, mode, destptr, offset);
+ emit_insn (gen_strmov (destptr, dest, srcptr, src));
+}
+
+/* Output code to copy at most count & (max_size - 1) bytes from SRC to DEST. */
+static void
+expand_movmem_epilogue (rtx destmem, rtx srcmem,
+ rtx destptr, rtx srcptr, rtx count, int max_size)
+{
+ rtx src, dest;
+ if (CONST_INT_P (count))
+ {
+ HOST_WIDE_INT countval = INTVAL (count);
+ int offset = 0;
+
+ if ((countval & 0x10) && max_size > 16)
+ {
+ if (TARGET_64BIT)
+ {
+ emit_strmov (destmem, srcmem, destptr, srcptr, DImode, offset);
+ emit_strmov (destmem, srcmem, destptr, srcptr, DImode, offset + 8);
}
else
+ gcc_unreachable ();
+ offset += 16;
+ }
+ if ((countval & 0x08) && max_size > 8)
+ {
+ if (TARGET_64BIT)
+ emit_strmov (destmem, srcmem, destptr, srcptr, DImode, offset);
+ else
{
- countreg = GEN_INT ((count >> (size == 4 ? 2 : 3))
- & (TARGET_64BIT ? -1 : 0x3fffffff));
- countreg = copy_to_mode_reg (counter_mode, countreg);
- countreg = ix86_zero_extend_to_Pmode (countreg);
-
- destexp = gen_rtx_ASHIFT (Pmode, countreg,
- GEN_INT (size == 4 ? 2 : 3));
- srcexp = gen_rtx_PLUS (Pmode, destexp, srcreg);
- destexp = gen_rtx_PLUS (Pmode, destexp, destreg);
-
- emit_insn (gen_rep_mov (destreg, dst, srcreg, src,
- countreg, destexp, srcexp));
- offset = count & ~(size - 1);
+ emit_strmov (destmem, srcmem, destptr, srcptr, SImode, offset);
+ emit_strmov (destmem, srcmem, destptr, srcptr, SImode, offset + 4);
}
+ offset += 8;
}
- if (size == 8 && (count & 0x04))
+ if ((countval & 0x04) && max_size > 4)
{
- srcmem = adjust_automodify_address_nv (src, SImode, srcreg,
- offset);
- dstmem = adjust_automodify_address_nv (dst, SImode, destreg,
- offset);
- emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem));
+ emit_strmov (destmem, srcmem, destptr, srcptr, SImode, offset);
offset += 4;
}
- if (count & 0x02)
+ if ((countval & 0x02) && max_size > 2)
{
- srcmem = adjust_automodify_address_nv (src, HImode, srcreg,
- offset);
- dstmem = adjust_automodify_address_nv (dst, HImode, destreg,
- offset);
- emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem));
+ emit_strmov (destmem, srcmem, destptr, srcptr, HImode, offset);
offset += 2;
}
- if (count & 0x01)
+ if ((countval & 0x01) && max_size > 1)
{
- srcmem = adjust_automodify_address_nv (src, QImode, srcreg,
- offset);
- dstmem = adjust_automodify_address_nv (dst, QImode, destreg,
- offset);
- emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem));
+ emit_strmov (destmem, srcmem, destptr, srcptr, QImode, offset);
+ offset += 1;
}
+ return;
}
- /* The generic code based on the glibc implementation:
- - align destination to 4 bytes (8 byte alignment is used for PentiumPro
- allowing accelerated copying there)
- - copy the data using rep movsl
- - copy the rest. */
- else
+ if (max_size > 8)
{
- rtx countreg2;
- rtx label = NULL;
- rtx srcmem, dstmem;
- int desired_alignment = (TARGET_PENTIUMPRO
- && (count == 0 || count >= (unsigned int) 260)
- ? 8 : UNITS_PER_WORD);
- /* Get rid of MEM_OFFSETs, they won't be accurate. */
- dst = change_address (dst, BLKmode, destreg);
- src = change_address (src, BLKmode, srcreg);
-
- /* In case we don't know anything about the alignment, default to
- library version, since it is usually equally fast and result in
- shorter code.
-
- Also emit call when we know that the count is large and call overhead
- will not be important. */
- if (!TARGET_INLINE_ALL_STRINGOPS
- && (align < UNITS_PER_WORD || !TARGET_REP_MOVL_OPTIMAL))
- return 0;
-
- if (TARGET_SINGLE_STRINGOP)
- emit_insn (gen_cld ());
-
- countreg2 = gen_reg_rtx (Pmode);
- countreg = copy_to_mode_reg (counter_mode, count_exp);
-
- /* We don't use loops to align destination and to copy parts smaller
- than 4 bytes, because gcc is able to optimize such code better (in
- the case the destination or the count really is aligned, gcc is often
- able to predict the branches) and also it is friendlier to the
- hardware branch prediction.
-
- Using loops is beneficial for generic case, because we can
- handle small counts using the loops. Many CPUs (such as Athlon)
- have large REP prefix setup costs.
-
- This is quite costly. Maybe we can revisit this decision later or
- add some customizability to this code. */
+ count = expand_simple_binop (GET_MODE (count), AND, count, GEN_INT (max_size - 1),
+ count, 1, OPTAB_DIRECT);
+ expand_set_or_movmem_via_loop (destmem, srcmem, destptr, srcptr, NULL,
+ count, QImode, 1, 4);
+ return;
+ }
- if (count == 0 && align < desired_alignment)
+ /* When there are stringops, we can cheaply increase dest and src pointers.
+ Otherwise we save code size by maintaining offset (zero is readily
+ available from preceding rep operation) and using x86 addressing modes.
+ */
+ if (TARGET_SINGLE_STRINGOP)
+ {
+ if (max_size > 4)
{
- label = gen_label_rtx ();
- emit_cmp_and_jump_insns (countreg, GEN_INT (desired_alignment - 1),
- LEU, 0, counter_mode, 1, label);
+ rtx label = ix86_expand_aligntest (count, 4, true);
+ src = change_address (srcmem, SImode, srcptr);
+ dest = change_address (destmem, SImode, destptr);
+ emit_insn (gen_strmov (destptr, dest, srcptr, src));
+ emit_label (label);
+ LABEL_NUSES (label) = 1;
}
- if (align <= 1)
+ if (max_size > 2)
{
- rtx label = ix86_expand_aligntest (destreg, 1);
- srcmem = change_address (src, QImode, srcreg);
- dstmem = change_address (dst, QImode, destreg);
- emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem));
- ix86_adjust_counter (countreg, 1);
+ rtx label = ix86_expand_aligntest (count, 2, true);
+ src = change_address (srcmem, HImode, srcptr);
+ dest = change_address (destmem, HImode, destptr);
+ emit_insn (gen_strmov (destptr, dest, srcptr, src));
emit_label (label);
LABEL_NUSES (label) = 1;
}
- if (align <= 2)
+ if (max_size > 1)
{
- rtx label = ix86_expand_aligntest (destreg, 2);
- srcmem = change_address (src, HImode, srcreg);
- dstmem = change_address (dst, HImode, destreg);
- emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem));
- ix86_adjust_counter (countreg, 2);
+ rtx label = ix86_expand_aligntest (count, 1, true);
+ src = change_address (srcmem, QImode, srcptr);
+ dest = change_address (destmem, QImode, destptr);
+ emit_insn (gen_strmov (destptr, dest, srcptr, src));
emit_label (label);
LABEL_NUSES (label) = 1;
}
- if (align <= 4 && desired_alignment > 4)
+ }
+ else
+ {
+ rtx offset = force_reg (Pmode, const0_rtx);
+ rtx tmp;
+
+ if (max_size > 4)
{
- rtx label = ix86_expand_aligntest (destreg, 4);
- srcmem = change_address (src, SImode, srcreg);
- dstmem = change_address (dst, SImode, destreg);
- emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem));
- ix86_adjust_counter (countreg, 4);
+ rtx label = ix86_expand_aligntest (count, 4, true);
+ src = change_address (srcmem, SImode, srcptr);
+ dest = change_address (destmem, SImode, destptr);
+ emit_move_insn (dest, src);
+ tmp = expand_simple_binop (Pmode, PLUS, offset, GEN_INT (4), NULL,
+ true, OPTAB_LIB_WIDEN);
+ if (tmp != offset)
+ emit_move_insn (offset, tmp);
emit_label (label);
LABEL_NUSES (label) = 1;
}
-
- if (label && desired_alignment > 4 && !TARGET_64BIT)
+ if (max_size > 2)
+ {
+ rtx label = ix86_expand_aligntest (count, 2, true);
+ tmp = gen_rtx_PLUS (Pmode, srcptr, offset);
+ src = change_address (srcmem, HImode, tmp);
+ tmp = gen_rtx_PLUS (Pmode, destptr, offset);
+ dest = change_address (destmem, HImode, tmp);
+ emit_move_insn (dest, src);
+ tmp = expand_simple_binop (Pmode, PLUS, offset, GEN_INT (2), tmp,
+ true, OPTAB_LIB_WIDEN);
+ if (tmp != offset)
+ emit_move_insn (offset, tmp);
+ emit_label (label);
+ LABEL_NUSES (label) = 1;
+ }
+ if (max_size > 1)
{
+ rtx label = ix86_expand_aligntest (count, 1, true);
+ tmp = gen_rtx_PLUS (Pmode, srcptr, offset);
+ src = change_address (srcmem, QImode, tmp);
+ tmp = gen_rtx_PLUS (Pmode, destptr, offset);
+ dest = change_address (destmem, QImode, tmp);
+ emit_move_insn (dest, src);
emit_label (label);
LABEL_NUSES (label) = 1;
- label = NULL_RTX;
}
- if (!TARGET_SINGLE_STRINGOP)
- emit_insn (gen_cld ());
- if (TARGET_64BIT)
+ }
+}
+
+/* Output code to set at most count & (max_size - 1) bytes starting by DEST. */
+static void
+expand_setmem_epilogue_via_loop (rtx destmem, rtx destptr, rtx value,
+ rtx count, int max_size)
+{
+ count =
+ expand_simple_binop (counter_mode (count), AND, count,
+ GEN_INT (max_size - 1), count, 1, OPTAB_DIRECT);
+ expand_set_or_movmem_via_loop (destmem, NULL, destptr, NULL,
+ gen_lowpart (QImode, value), count, QImode,
+ 1, max_size / 2);
+}
+
+/* Output code to set at most count & (max_size - 1) bytes starting by DEST. */
+static void
+expand_setmem_epilogue (rtx destmem, rtx destptr, rtx value, rtx count, int max_size)
+{
+ rtx dest;
+
+ if (CONST_INT_P (count))
+ {
+ HOST_WIDE_INT countval = INTVAL (count);
+ int offset = 0;
+
+ if ((countval & 0x10) && max_size > 16)
{
- emit_insn (gen_lshrdi3 (countreg2, ix86_zero_extend_to_Pmode (countreg),
- GEN_INT (3)));
- destexp = gen_rtx_ASHIFT (Pmode, countreg2, GEN_INT (3));
+ if (TARGET_64BIT)
+ {
+ dest = adjust_automodify_address_nv (destmem, DImode, destptr, offset);
+ emit_insn (gen_strset (destptr, dest, value));
+ dest = adjust_automodify_address_nv (destmem, DImode, destptr, offset + 8);
+ emit_insn (gen_strset (destptr, dest, value));
+ }
+ else
+ gcc_unreachable ();
+ offset += 16;
}
- else
+ if ((countval & 0x08) && max_size > 8)
{
- emit_insn (gen_lshrsi3 (countreg2, countreg, const2_rtx));
- destexp = gen_rtx_ASHIFT (Pmode, countreg2, const2_rtx);
+ if (TARGET_64BIT)
+ {
+ dest = adjust_automodify_address_nv (destmem, DImode, destptr, offset);
+ emit_insn (gen_strset (destptr, dest, value));
+ }
+ else
+ {
+ dest = adjust_automodify_address_nv (destmem, SImode, destptr, offset);
+ emit_insn (gen_strset (destptr, dest, value));
+ dest = adjust_automodify_address_nv (destmem, SImode, destptr, offset + 4);
+ emit_insn (gen_strset (destptr, dest, value));
+ }
+ offset += 8;
}
- srcexp = gen_rtx_PLUS (Pmode, destexp, srcreg);
- destexp = gen_rtx_PLUS (Pmode, destexp, destreg);
- emit_insn (gen_rep_mov (destreg, dst, srcreg, src,
- countreg2, destexp, srcexp));
-
- if (label)
+ if ((countval & 0x04) && max_size > 4)
{
- emit_label (label);
- LABEL_NUSES (label) = 1;
+ dest = adjust_automodify_address_nv (destmem, SImode, destptr, offset);
+ emit_insn (gen_strset (destptr, dest, gen_lowpart (SImode, value)));
+ offset += 4;
}
- if (TARGET_64BIT && align > 4 && count != 0 && (count & 4))
+ if ((countval & 0x02) && max_size > 2)
{
- srcmem = change_address (src, SImode, srcreg);
- dstmem = change_address (dst, SImode, destreg);
- emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem));
+ dest = adjust_automodify_address_nv (destmem, HImode, destptr, offset);
+ emit_insn (gen_strset (destptr, dest, gen_lowpart (HImode, value)));
+ offset += 2;
}
- if ((align <= 4 || count == 0) && TARGET_64BIT)
+ if ((countval & 0x01) && max_size > 1)
{
- rtx label = ix86_expand_aligntest (countreg, 4);
- srcmem = change_address (src, SImode, srcreg);
- dstmem = change_address (dst, SImode, destreg);
- emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem));
- emit_label (label);
- LABEL_NUSES (label) = 1;
+ dest = adjust_automodify_address_nv (destmem, QImode, destptr, offset);
+ emit_insn (gen_strset (destptr, dest, gen_lowpart (QImode, value)));
+ offset += 1;
}
- if (align > 2 && count != 0 && (count & 2))
+ return;
+ }
+ if (max_size > 32)
+ {
+ expand_setmem_epilogue_via_loop (destmem, destptr, value, count, max_size);
+ return;
+ }
+ if (max_size > 16)
+ {
+ rtx label = ix86_expand_aligntest (count, 16, true);
+ if (TARGET_64BIT)
{
- srcmem = change_address (src, HImode, srcreg);
- dstmem = change_address (dst, HImode, destreg);
- emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem));
+ dest = change_address (destmem, DImode, destptr);
+ emit_insn (gen_strset (destptr, dest, value));
+ emit_insn (gen_strset (destptr, dest, value));
}
- if (align <= 2 || count == 0)
+ else
{
- rtx label = ix86_expand_aligntest (countreg, 2);
- srcmem = change_address (src, HImode, srcreg);
- dstmem = change_address (dst, HImode, destreg);
- emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem));
- emit_label (label);
- LABEL_NUSES (label) = 1;
+ dest = change_address (destmem, SImode, destptr);
+ emit_insn (gen_strset (destptr, dest, value));
+ emit_insn (gen_strset (destptr, dest, value));
+ emit_insn (gen_strset (destptr, dest, value));
+ emit_insn (gen_strset (destptr, dest, value));
}
- if (align > 1 && count != 0 && (count & 1))
+ emit_label (label);
+ LABEL_NUSES (label) = 1;
+ }
+ if (max_size > 8)
+ {
+ rtx label = ix86_expand_aligntest (count, 8, true);
+ if (TARGET_64BIT)
{
- srcmem = change_address (src, QImode, srcreg);
- dstmem = change_address (dst, QImode, destreg);
- emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem));
+ dest = change_address (destmem, DImode, destptr);
+ emit_insn (gen_strset (destptr, dest, value));
}
- if (align <= 1 || count == 0)
+ else
{
- rtx label = ix86_expand_aligntest (countreg, 1);
- srcmem = change_address (src, QImode, srcreg);
- dstmem = change_address (dst, QImode, destreg);
- emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem));
- emit_label (label);
- LABEL_NUSES (label) = 1;
+ dest = change_address (destmem, SImode, destptr);
+ emit_insn (gen_strset (destptr, dest, value));
+ emit_insn (gen_strset (destptr, dest, value));
}
+ emit_label (label);
+ LABEL_NUSES (label) = 1;
+ }
+ if (max_size > 4)
+ {
+ rtx label = ix86_expand_aligntest (count, 4, true);
+ dest = change_address (destmem, SImode, destptr);
+ emit_insn (gen_strset (destptr, dest, gen_lowpart (SImode, value)));
+ emit_label (label);
+ LABEL_NUSES (label) = 1;
}
+ if (max_size > 2)
+ {
+ rtx label = ix86_expand_aligntest (count, 2, true);
+ dest = change_address (destmem, HImode, destptr);
+ emit_insn (gen_strset (destptr, dest, gen_lowpart (HImode, value)));
+ emit_label (label);
+ LABEL_NUSES (label) = 1;
+ }
+ if (max_size > 1)
+ {
+ rtx label = ix86_expand_aligntest (count, 1, true);
+ dest = change_address (destmem, QImode, destptr);
+ emit_insn (gen_strset (destptr, dest, gen_lowpart (QImode, value)));
+ emit_label (label);
+ LABEL_NUSES (label) = 1;
+ }
+}
- return 1;
+/* Copy enough from DEST to SRC to align DEST known to by aligned by ALIGN to
+ DESIRED_ALIGNMENT. */
+static void
+expand_movmem_prologue (rtx destmem, rtx srcmem,
+ rtx destptr, rtx srcptr, rtx count,
+ int align, int desired_alignment)
+{
+ if (align <= 1 && desired_alignment > 1)
+ {
+ rtx label = ix86_expand_aligntest (destptr, 1, false);
+ srcmem = change_address (srcmem, QImode, srcptr);
+ destmem = change_address (destmem, QImode, destptr);
+ emit_insn (gen_strmov (destptr, destmem, srcptr, srcmem));
+ ix86_adjust_counter (count, 1);
+ emit_label (label);
+ LABEL_NUSES (label) = 1;
+ }
+ if (align <= 2 && desired_alignment > 2)
+ {
+ rtx label = ix86_expand_aligntest (destptr, 2, false);
+ srcmem = change_address (srcmem, HImode, srcptr);
+ destmem = change_address (destmem, HImode, destptr);
+ emit_insn (gen_strmov (destptr, destmem, srcptr, srcmem));
+ ix86_adjust_counter (count, 2);
+ emit_label (label);
+ LABEL_NUSES (label) = 1;
+ }
+ if (align <= 4 && desired_alignment > 4)
+ {
+ rtx label = ix86_expand_aligntest (destptr, 4, false);
+ srcmem = change_address (srcmem, SImode, srcptr);
+ destmem = change_address (destmem, SImode, destptr);
+ emit_insn (gen_strmov (destptr, destmem, srcptr, srcmem));
+ ix86_adjust_counter (count, 4);
+ emit_label (label);
+ LABEL_NUSES (label) = 1;
+ }
+ gcc_assert (desired_alignment <= 8);
}
-/* Expand string clear operation (bzero). Use i386 string operations when
- profitable. expand_movmem contains similar code. */
+/* Set enough from DEST to align DEST known to by aligned by ALIGN to
+ DESIRED_ALIGNMENT. */
+static void
+expand_setmem_prologue (rtx destmem, rtx destptr, rtx value, rtx count,
+ int align, int desired_alignment)
+{
+ if (align <= 1 && desired_alignment > 1)
+ {
+ rtx label = ix86_expand_aligntest (destptr, 1, false);
+ destmem = change_address (destmem, QImode, destptr);
+ emit_insn (gen_strset (destptr, destmem, gen_lowpart (QImode, value)));
+ ix86_adjust_counter (count, 1);
+ emit_label (label);
+ LABEL_NUSES (label) = 1;
+ }
+ if (align <= 2 && desired_alignment > 2)
+ {
+ rtx label = ix86_expand_aligntest (destptr, 2, false);
+ destmem = change_address (destmem, HImode, destptr);
+ emit_insn (gen_strset (destptr, destmem, gen_lowpart (HImode, value)));
+ ix86_adjust_counter (count, 2);
+ emit_label (label);
+ LABEL_NUSES (label) = 1;
+ }
+ if (align <= 4 && desired_alignment > 4)
+ {
+ rtx label = ix86_expand_aligntest (destptr, 4, false);
+ destmem = change_address (destmem, SImode, destptr);
+ emit_insn (gen_strset (destptr, destmem, gen_lowpart (SImode, value)));
+ ix86_adjust_counter (count, 4);
+ emit_label (label);
+ LABEL_NUSES (label) = 1;
+ }
+ gcc_assert (desired_alignment <= 8);
+}
+
+/* Given COUNT and EXPECTED_SIZE, decide on codegen of string operation. */
+static enum stringop_alg
+decide_alg (HOST_WIDE_INT count, HOST_WIDE_INT expected_size, bool memset,
+ int *dynamic_check)
+{
+ const struct stringop_algs * algs;
+
+ *dynamic_check = -1;
+ if (memset)
+ algs = &ix86_cost->memset[TARGET_64BIT != 0];
+ else
+ algs = &ix86_cost->memcpy[TARGET_64BIT != 0];
+ if (stringop_alg != no_stringop)
+ return stringop_alg;
+ /* rep; movq or rep; movl is the smallest variant. */
+ else if (optimize_size)
+ {
+ if (!count || (count & 3))
+ return rep_prefix_1_byte;
+ else
+ return rep_prefix_4_byte;
+ }
+ /* Very tiny blocks are best handled via the loop, REP is expensive to setup.
+ */
+ else if (expected_size != -1 && expected_size < 4)
+ return loop_1_byte;
+ else if (expected_size != -1)
+ {
+ unsigned int i;
+ enum stringop_alg alg = libcall;
+ for (i = 0; i < NAX_STRINGOP_ALGS; i++)
+ {
+ gcc_assert (algs->size[i].max);
+ if (algs->size[i].max >= expected_size || algs->size[i].max == -1)
+ {
+ if (algs->size[i].alg != libcall)
+ alg = algs->size[i].alg;
+ /* Honor TARGET_INLINE_ALL_STRINGOPS by picking
+ last non-libcall inline algorithm. */
+ if (TARGET_INLINE_ALL_STRINGOPS)
+ {
+ /* When the current size is best to be copied by a libcall,
+ but we are still forced to inline, run the heuristic bellow
+ that will pick code for medium sized blocks. */
+ if (alg != libcall)
+ return alg;
+ break;
+ }
+ else
+ return algs->size[i].alg;
+ }
+ }
+ gcc_assert (TARGET_INLINE_ALL_STRINGOPS);
+ }
+ /* When asked to inline the call anyway, try to pick meaningful choice.
+ We look for maximal size of block that is faster to copy by hand and
+ take blocks of at most of that size guessing that average size will
+ be roughly half of the block.
+
+ If this turns out to be bad, we might simply specify the preferred
+ choice in ix86_costs. */
+ if ((TARGET_INLINE_ALL_STRINGOPS || TARGET_INLINE_STRINGOPS_DYNAMICALLY)
+ && algs->unknown_size == libcall)
+ {
+ int max = -1;
+ enum stringop_alg alg;
+ int i;
+
+ for (i = 0; i < NAX_STRINGOP_ALGS; i++)
+ if (algs->size[i].alg != libcall && algs->size[i].alg)
+ max = algs->size[i].max;
+ if (max == -1)
+ max = 4096;
+ alg = decide_alg (count, max / 2, memset, dynamic_check);
+ gcc_assert (*dynamic_check == -1);
+ gcc_assert (alg != libcall);
+ if (TARGET_INLINE_STRINGOPS_DYNAMICALLY)
+ *dynamic_check = max;
+ return alg;
+ }
+ return algs->unknown_size;
+}
+
+/* Decide on alignment. We know that the operand is already aligned to ALIGN
+ (ALIGN can be based on profile feedback and thus it is not 100% guaranteed). */
+static int
+decide_alignment (int align,
+ enum stringop_alg alg,
+ int expected_size)
+{
+ int desired_align = 0;
+ switch (alg)
+ {
+ case no_stringop:
+ gcc_unreachable ();
+ case loop:
+ case unrolled_loop:
+ desired_align = GET_MODE_SIZE (Pmode);
+ break;
+ case rep_prefix_8_byte:
+ desired_align = 8;
+ break;
+ case rep_prefix_4_byte:
+ /* PentiumPro has special logic triggering for 8 byte aligned blocks.
+ copying whole cacheline at once. */
+ if (TARGET_PENTIUMPRO)
+ desired_align = 8;
+ else
+ desired_align = 4;
+ break;
+ case rep_prefix_1_byte:
+ /* PentiumPro has special logic triggering for 8 byte aligned blocks.
+ copying whole cacheline at once. */
+ if (TARGET_PENTIUMPRO)
+ desired_align = 8;
+ else
+ desired_align = 1;
+ break;
+ case loop_1_byte:
+ desired_align = 1;
+ break;
+ case libcall:
+ return 0;
+ }
+
+ if (optimize_size)
+ desired_align = 1;
+ if (desired_align < align)
+ desired_align = align;
+ if (expected_size != -1 && expected_size < 4)
+ desired_align = align;
+ return desired_align;
+}
+
+/* Return the smallest power of 2 greater than VAL. */
+static int
+smallest_pow2_greater_than (int val)
+{
+ int ret = 1;
+ while (ret <= val)
+ ret <<= 1;
+ return ret;
+}
+
+/* Expand string move (memcpy) operation. Use i386 string operations when
+ profitable. expand_clrmem contains similar code. The code depends upon
+ architecture, block size and alignment, but always has the same
+ overall structure:
+
+ 1) Prologue guard: Conditional that jumps up to epilogues for small
+ blocks that can be handled by epilogue alone. This is faster but
+ also needed for correctness, since prologue assume the block is larger
+ than the desired alignment.
+
+ Optional dynamic check for size and libcall for large
+ blocks is emitted here too, with -minline-stringops-dynamically.
+
+ 2) Prologue: copy first few bytes in order to get destination aligned
+ to DESIRED_ALIGN. It is emitted only when ALIGN is less than
+ DESIRED_ALIGN and and up to DESIRED_ALIGN - ALIGN bytes can be copied.
+ We emit either a jump tree on power of two sized blocks, or a byte loop.
+
+ 3) Main body: the copying loop itself, copying in SIZE_NEEDED chunks
+ with specified algorithm.
+
+ 4) Epilogue: code copying tail of the block that is too small to be
+ handled by main body (or up to size guarded by prologue guard). */
+
int
-ix86_expand_clrmem (rtx dst, rtx count_exp, rtx align_exp)
+ix86_expand_movmem (rtx dst, rtx src, rtx count_exp, rtx align_exp,
+ rtx expected_align_exp, rtx expected_size_exp)
{
- rtx destreg, zeroreg, countreg, destexp;
- enum machine_mode counter_mode;
- HOST_WIDE_INT align = 0;
+ rtx destreg;
+ rtx srcreg;
+ rtx label = NULL;
+ rtx tmp;
+ rtx jump_around_label = NULL;
+ HOST_WIDE_INT align = 1;
unsigned HOST_WIDE_INT count = 0;
+ HOST_WIDE_INT expected_size = -1;
+ int size_needed = 0, epilogue_size_needed;
+ int desired_align = 0;
+ enum stringop_alg alg;
+ int dynamic_check;
- if (GET_CODE (align_exp) == CONST_INT)
+ if (CONST_INT_P (align_exp))
align = INTVAL (align_exp);
+ /* i386 can do misaligned access on reasonably increased cost. */
+ if (CONST_INT_P (expected_align_exp)
+ && INTVAL (expected_align_exp) > align)
+ align = INTVAL (expected_align_exp);
+ if (CONST_INT_P (count_exp))
+ count = expected_size = INTVAL (count_exp);
+ if (CONST_INT_P (expected_size_exp) && count == 0)
+ expected_size = INTVAL (expected_size_exp);
- /* Can't use any of this if the user has appropriated esi. */
- if (global_regs[4])
- return 0;
+ /* Step 0: Decide on preferred algorithm, desired alignment and
+ size of chunks to be copied by main loop. */
+
+ alg = decide_alg (count, expected_size, false, &dynamic_check);
+ desired_align = decide_alignment (align, alg, expected_size);
- /* This simple hack avoids all inlining code and simplifies code below. */
if (!TARGET_ALIGN_STRINGOPS)
- align = 32;
+ align = desired_align;
+
+ if (alg == libcall)
+ return 0;
+ gcc_assert (alg != no_stringop);
+ if (!count)
+ count_exp = copy_to_mode_reg (GET_MODE (count_exp), count_exp);
+ destreg = copy_to_mode_reg (Pmode, XEXP (dst, 0));
+ srcreg = copy_to_mode_reg (Pmode, XEXP (src, 0));
+ switch (alg)
+ {
+ case libcall:
+ case no_stringop:
+ gcc_unreachable ();
+ case loop:
+ size_needed = GET_MODE_SIZE (Pmode);
+ break;
+ case unrolled_loop:
+ size_needed = GET_MODE_SIZE (Pmode) * (TARGET_64BIT ? 4 : 2);
+ break;
+ case rep_prefix_8_byte:
+ size_needed = 8;
+ break;
+ case rep_prefix_4_byte:
+ size_needed = 4;
+ break;
+ case rep_prefix_1_byte:
+ case loop_1_byte:
+ size_needed = 1;
+ break;
+ }
+
+ epilogue_size_needed = size_needed;
- if (GET_CODE (count_exp) == CONST_INT)
+ /* Step 1: Prologue guard. */
+
+ /* Alignment code needs count to be in register. */
+ if (CONST_INT_P (count_exp) && desired_align > align)
+ {
+ enum machine_mode mode = SImode;
+ if (TARGET_64BIT && (count & ~0xffffffff))
+ mode = DImode;
+ count_exp = force_reg (mode, count_exp);
+ }
+ gcc_assert (desired_align >= 1 && align >= 1);
+
+ /* Ensure that alignment prologue won't copy past end of block. */
+ if (size_needed > 1 || (desired_align > 1 && desired_align > align))
+ {
+ epilogue_size_needed = MAX (size_needed - 1, desired_align - align);
+ /* Epilogue always copies COUNT_EXP & EPILOGUE_SIZE_NEEDED bytes.
+ Make sure it is power of 2. */
+ epilogue_size_needed = smallest_pow2_greater_than (epilogue_size_needed);
+
+ label = gen_label_rtx ();
+ emit_cmp_and_jump_insns (count_exp,
+ GEN_INT (epilogue_size_needed),
+ LTU, 0, counter_mode (count_exp), 1, label);
+ if (GET_CODE (count_exp) == CONST_INT)
+ ;
+ else if (expected_size == -1 || expected_size < epilogue_size_needed)
+ predict_jump (REG_BR_PROB_BASE * 60 / 100);
+ else
+ predict_jump (REG_BR_PROB_BASE * 20 / 100);
+ }
+ /* Emit code to decide on runtime whether library call or inline should be
+ used. */
+ if (dynamic_check != -1)
+ {
+ rtx hot_label = gen_label_rtx ();
+ jump_around_label = gen_label_rtx ();
+ emit_cmp_and_jump_insns (count_exp, GEN_INT (dynamic_check - 1),
+ LEU, 0, GET_MODE (count_exp), 1, hot_label);
+ predict_jump (REG_BR_PROB_BASE * 90 / 100);
+ emit_block_move_via_libcall (dst, src, count_exp, false);
+ emit_jump (jump_around_label);
+ emit_label (hot_label);
+ }
+
+ /* Step 2: Alignment prologue. */
+
+ if (desired_align > align)
+ {
+ /* Except for the first move in epilogue, we no longer know
+ constant offset in aliasing info. It don't seems to worth
+ the pain to maintain it for the first move, so throw away
+ the info early. */
+ src = change_address (src, BLKmode, srcreg);
+ dst = change_address (dst, BLKmode, destreg);
+ expand_movmem_prologue (dst, src, destreg, srcreg, count_exp, align,
+ desired_align);
+ }
+ if (label && size_needed == 1)
+ {
+ emit_label (label);
+ LABEL_NUSES (label) = 1;
+ label = NULL;
+ }
+
+ /* Step 3: Main loop. */
+
+ switch (alg)
+ {
+ case libcall:
+ case no_stringop:
+ gcc_unreachable ();
+ case loop_1_byte:
+ expand_set_or_movmem_via_loop (dst, src, destreg, srcreg, NULL,
+ count_exp, QImode, 1, expected_size);
+ break;
+ case loop:
+ expand_set_or_movmem_via_loop (dst, src, destreg, srcreg, NULL,
+ count_exp, Pmode, 1, expected_size);
+ break;
+ case unrolled_loop:
+ /* Unroll only by factor of 2 in 32bit mode, since we don't have enough
+ registers for 4 temporaries anyway. */
+ expand_set_or_movmem_via_loop (dst, src, destreg, srcreg, NULL,
+ count_exp, Pmode, TARGET_64BIT ? 4 : 2,
+ expected_size);
+ break;
+ case rep_prefix_8_byte:
+ expand_movmem_via_rep_mov (dst, src, destreg, srcreg, count_exp,
+ DImode);
+ break;
+ case rep_prefix_4_byte:
+ expand_movmem_via_rep_mov (dst, src, destreg, srcreg, count_exp,
+ SImode);
+ break;
+ case rep_prefix_1_byte:
+ expand_movmem_via_rep_mov (dst, src, destreg, srcreg, count_exp,
+ QImode);
+ break;
+ }
+ /* Adjust properly the offset of src and dest memory for aliasing. */
+ if (CONST_INT_P (count_exp))
{
- count = INTVAL (count_exp);
- if (!TARGET_INLINE_ALL_STRINGOPS && count > 64)
- return 0;
+ src = adjust_automodify_address_nv (src, BLKmode, srcreg,
+ (count / size_needed) * size_needed);
+ dst = adjust_automodify_address_nv (dst, BLKmode, destreg,
+ (count / size_needed) * size_needed);
}
- /* Figure out proper mode for counter. For 32bits it is always SImode,
- for 64bits use SImode when possible, otherwise DImode.
- Set count to number of bytes copied when known at compile time. */
- if (!TARGET_64BIT
- || GET_MODE (count_exp) == SImode
- || x86_64_zext_immediate_operand (count_exp, VOIDmode))
- counter_mode = SImode;
else
- counter_mode = DImode;
-
- destreg = copy_to_mode_reg (Pmode, XEXP (dst, 0));
- if (destreg != XEXP (dst, 0))
- dst = replace_equiv_address_nv (dst, destreg);
-
+ {
+ src = change_address (src, BLKmode, srcreg);
+ dst = change_address (dst, BLKmode, destreg);
+ }
- /* When optimizing for size emit simple rep ; movsb instruction for
- counts not divisible by 4. The movl $N, %ecx; rep; stosb
- sequence is 7 bytes long, so if optimizing for size and count is
- small enough that some stosl, stosw and stosb instructions without
- rep are shorter, fall back into the next if. */
+ /* Step 4: Epilogue to copy the remaining bytes. */
- if ((!optimize || optimize_size)
- && (count == 0
- || ((count & 0x03)
- && (!optimize_size || (count & 0x03) + (count >> 2) > 7))))
+ if (label)
{
- emit_insn (gen_cld ());
+ /* When the main loop is done, COUNT_EXP might hold original count,
+ while we want to copy only COUNT_EXP & SIZE_NEEDED bytes.
+ Epilogue code will actually copy COUNT_EXP & EPILOGUE_SIZE_NEEDED
+ bytes. Compensate if needed. */
- countreg = ix86_zero_extend_to_Pmode (count_exp);
- zeroreg = copy_to_mode_reg (QImode, const0_rtx);
- destexp = gen_rtx_PLUS (Pmode, destreg, countreg);
- emit_insn (gen_rep_stos (destreg, countreg, dst, zeroreg, destexp));
+ if (size_needed < epilogue_size_needed)
+ {
+ tmp =
+ expand_simple_binop (counter_mode (count_exp), AND, count_exp,
+ GEN_INT (size_needed - 1), count_exp, 1,
+ OPTAB_DIRECT);
+ if (tmp != count_exp)
+ emit_move_insn (count_exp, tmp);
+ }
+ emit_label (label);
+ LABEL_NUSES (label) = 1;
}
- else if (count != 0
- && (align >= 8
- || (!TARGET_PENTIUMPRO && !TARGET_64BIT && align >= 4)
- || optimize_size || count < (unsigned int) 64))
- {
- int size = TARGET_64BIT && !optimize_size ? 8 : 4;
- unsigned HOST_WIDE_INT offset = 0;
- emit_insn (gen_cld ());
+ if (count_exp != const0_rtx && epilogue_size_needed > 1)
+ expand_movmem_epilogue (dst, src, destreg, srcreg, count_exp,
+ epilogue_size_needed);
+ if (jump_around_label)
+ emit_label (jump_around_label);
+ return 1;
+}
- zeroreg = copy_to_mode_reg (size == 4 ? SImode : DImode, const0_rtx);
- if (count & ~(size - 1))
- {
- unsigned HOST_WIDE_INT repcount;
- unsigned int max_nonrep;
+/* Helper function for memcpy. For QImode value 0xXY produce
+ 0xXYXYXYXY of wide specified by MODE. This is essentially
+ a * 0x10101010, but we can do slightly better than
+ synth_mult by unwinding the sequence by hand on CPUs with
+ slow multiply. */
+static rtx
+promote_duplicated_reg (enum machine_mode mode, rtx val)
+{
+ enum machine_mode valmode = GET_MODE (val);
+ rtx tmp;
+ int nops = mode == DImode ? 3 : 2;
- repcount = count >> (size == 4 ? 2 : 3);
- if (!TARGET_64BIT)
- repcount &= 0x3fffffff;
+ gcc_assert (mode == SImode || mode == DImode);
+ if (val == const0_rtx)
+ return copy_to_mode_reg (mode, const0_rtx);
+ if (CONST_INT_P (val))
+ {
+ HOST_WIDE_INT v = INTVAL (val) & 255;
- /* movl $N, %ecx; rep; stosl is 7 bytes, while N x stosl is N bytes.
- movl $N, %ecx; rep; stosq is 8 bytes, while N x stosq is 2xN
- bytes. In both cases the latter seems to be faster for small
- values of N. */
- max_nonrep = size == 4 ? 7 : 4;
- if (!optimize_size)
- switch (ix86_tune)
- {
- case PROCESSOR_PENTIUM4:
- case PROCESSOR_NOCONA:
- max_nonrep = 3;
- break;
- default:
- break;
- }
+ v |= v << 8;
+ v |= v << 16;
+ if (mode == DImode)
+ v |= (v << 16) << 16;
+ return copy_to_mode_reg (mode, gen_int_mode (v, mode));
+ }
- if (repcount <= max_nonrep)
- while (repcount-- > 0)
- {
- rtx mem = adjust_automodify_address_nv (dst,
- GET_MODE (zeroreg),
- destreg, offset);
- emit_insn (gen_strset (destreg, mem, zeroreg));
- offset += size;
- }
- else
- {
- countreg = copy_to_mode_reg (counter_mode, GEN_INT (repcount));
- countreg = ix86_zero_extend_to_Pmode (countreg);
- destexp = gen_rtx_ASHIFT (Pmode, countreg,
- GEN_INT (size == 4 ? 2 : 3));
- destexp = gen_rtx_PLUS (Pmode, destexp, destreg);
- emit_insn (gen_rep_stos (destreg, countreg, dst, zeroreg,
- destexp));
- offset = count & ~(size - 1);
- }
- }
- if (size == 8 && (count & 0x04))
- {
- rtx mem = adjust_automodify_address_nv (dst, SImode, destreg,
- offset);
- emit_insn (gen_strset (destreg, mem,
- gen_rtx_SUBREG (SImode, zeroreg, 0)));
- offset += 4;
- }
- if (count & 0x02)
- {
- rtx mem = adjust_automodify_address_nv (dst, HImode, destreg,
- offset);
- emit_insn (gen_strset (destreg, mem,
- gen_rtx_SUBREG (HImode, zeroreg, 0)));
- offset += 2;
- }
- if (count & 0x01)
- {
- rtx mem = adjust_automodify_address_nv (dst, QImode, destreg,
- offset);
- emit_insn (gen_strset (destreg, mem,
- gen_rtx_SUBREG (QImode, zeroreg, 0)));
- }
+ if (valmode == VOIDmode)
+ valmode = QImode;
+ if (valmode != QImode)
+ val = gen_lowpart (QImode, val);
+ if (mode == QImode)
+ return val;
+ if (!TARGET_PARTIAL_REG_STALL)
+ nops--;
+ if (ix86_cost->mult_init[mode == DImode ? 3 : 2]
+ + ix86_cost->mult_bit * (mode == DImode ? 8 : 4)
+ <= (ix86_cost->shift_const + ix86_cost->add) * nops
+ + (COSTS_N_INSNS (TARGET_PARTIAL_REG_STALL == 0)))
+ {
+ rtx reg = convert_modes (mode, QImode, val, true);
+ tmp = promote_duplicated_reg (mode, const1_rtx);
+ return expand_simple_binop (mode, MULT, reg, tmp, NULL, 1,
+ OPTAB_DIRECT);
}
else
{
- rtx countreg2;
- rtx label = NULL;
- /* Compute desired alignment of the string operation. */
- int desired_alignment = (TARGET_PENTIUMPRO
- && (count == 0 || count >= (unsigned int) 260)
- ? 8 : UNITS_PER_WORD);
-
- /* In case we don't know anything about the alignment, default to
- library version, since it is usually equally fast and result in
- shorter code.
-
- Also emit call when we know that the count is large and call overhead
- will not be important. */
- if (!TARGET_INLINE_ALL_STRINGOPS
- && (align < UNITS_PER_WORD || !TARGET_REP_MOVL_OPTIMAL))
- return 0;
-
- if (TARGET_SINGLE_STRINGOP)
- emit_insn (gen_cld ());
-
- countreg2 = gen_reg_rtx (Pmode);
- countreg = copy_to_mode_reg (counter_mode, count_exp);
- zeroreg = copy_to_mode_reg (Pmode, const0_rtx);
- /* Get rid of MEM_OFFSET, it won't be accurate. */
- dst = change_address (dst, BLKmode, destreg);
-
- if (count == 0 && align < desired_alignment)
- {
- label = gen_label_rtx ();
- emit_cmp_and_jump_insns (countreg, GEN_INT (desired_alignment - 1),
- LEU, 0, counter_mode, 1, label);
- }
- if (align <= 1)
- {
- rtx label = ix86_expand_aligntest (destreg, 1);
- emit_insn (gen_strset (destreg, dst,
- gen_rtx_SUBREG (QImode, zeroreg, 0)));
- ix86_adjust_counter (countreg, 1);
- emit_label (label);
- LABEL_NUSES (label) = 1;
- }
- if (align <= 2)
- {
- rtx label = ix86_expand_aligntest (destreg, 2);
- emit_insn (gen_strset (destreg, dst,
- gen_rtx_SUBREG (HImode, zeroreg, 0)));
- ix86_adjust_counter (countreg, 2);
- emit_label (label);
- LABEL_NUSES (label) = 1;
- }
- if (align <= 4 && desired_alignment > 4)
- {
- rtx label = ix86_expand_aligntest (destreg, 4);
- emit_insn (gen_strset (destreg, dst,
- (TARGET_64BIT
- ? gen_rtx_SUBREG (SImode, zeroreg, 0)
- : zeroreg)));
- ix86_adjust_counter (countreg, 4);
- emit_label (label);
- LABEL_NUSES (label) = 1;
- }
-
- if (label && desired_alignment > 4 && !TARGET_64BIT)
- {
- emit_label (label);
- LABEL_NUSES (label) = 1;
- label = NULL_RTX;
- }
+ rtx reg = convert_modes (mode, QImode, val, true);
- if (!TARGET_SINGLE_STRINGOP)
- emit_insn (gen_cld ());
- if (TARGET_64BIT)
- {
- emit_insn (gen_lshrdi3 (countreg2, ix86_zero_extend_to_Pmode (countreg),
- GEN_INT (3)));
- destexp = gen_rtx_ASHIFT (Pmode, countreg2, GEN_INT (3));
- }
+ if (!TARGET_PARTIAL_REG_STALL)
+ if (mode == SImode)
+ emit_insn (gen_movsi_insv_1 (reg, reg));
+ else
+ emit_insn (gen_movdi_insv_1_rex64 (reg, reg));
else
{
- emit_insn (gen_lshrsi3 (countreg2, countreg, const2_rtx));
- destexp = gen_rtx_ASHIFT (Pmode, countreg2, const2_rtx);
+ tmp = expand_simple_binop (mode, ASHIFT, reg, GEN_INT (8),
+ NULL, 1, OPTAB_DIRECT);
+ reg =
+ expand_simple_binop (mode, IOR, reg, tmp, reg, 1, OPTAB_DIRECT);
}
- destexp = gen_rtx_PLUS (Pmode, destexp, destreg);
- emit_insn (gen_rep_stos (destreg, countreg2, dst, zeroreg, destexp));
+ tmp = expand_simple_binop (mode, ASHIFT, reg, GEN_INT (16),
+ NULL, 1, OPTAB_DIRECT);
+ reg = expand_simple_binop (mode, IOR, reg, tmp, reg, 1, OPTAB_DIRECT);
+ if (mode == SImode)
+ return reg;
+ tmp = expand_simple_binop (mode, ASHIFT, reg, GEN_INT (32),
+ NULL, 1, OPTAB_DIRECT);
+ reg = expand_simple_binop (mode, IOR, reg, tmp, reg, 1, OPTAB_DIRECT);
+ return reg;
+ }
+}
- if (label)
- {
- emit_label (label);
- LABEL_NUSES (label) = 1;
- }
+/* Duplicate value VAL using promote_duplicated_reg into maximal size that will
+ be needed by main loop copying SIZE_NEEDED chunks and prologue getting
+ alignment from ALIGN to DESIRED_ALIGN. */
+static rtx
+promote_duplicated_reg_to_size (rtx val, int size_needed, int desired_align, int align)
+{
+ rtx promoted_val;
- if (TARGET_64BIT && align > 4 && count != 0 && (count & 4))
- emit_insn (gen_strset (destreg, dst,
- gen_rtx_SUBREG (SImode, zeroreg, 0)));
- if (TARGET_64BIT && (align <= 4 || count == 0))
- {
- rtx label = ix86_expand_aligntest (countreg, 4);
- emit_insn (gen_strset (destreg, dst,
- gen_rtx_SUBREG (SImode, zeroreg, 0)));
- emit_label (label);
- LABEL_NUSES (label) = 1;
- }
- if (align > 2 && count != 0 && (count & 2))
- emit_insn (gen_strset (destreg, dst,
- gen_rtx_SUBREG (HImode, zeroreg, 0)));
- if (align <= 2 || count == 0)
- {
- rtx label = ix86_expand_aligntest (countreg, 2);
- emit_insn (gen_strset (destreg, dst,
- gen_rtx_SUBREG (HImode, zeroreg, 0)));
- emit_label (label);
- LABEL_NUSES (label) = 1;
- }
- if (align > 1 && count != 0 && (count & 1))
- emit_insn (gen_strset (destreg, dst,
- gen_rtx_SUBREG (QImode, zeroreg, 0)));
- if (align <= 1 || count == 0)
- {
- rtx label = ix86_expand_aligntest (countreg, 1);
- emit_insn (gen_strset (destreg, dst,
- gen_rtx_SUBREG (QImode, zeroreg, 0)));
- emit_label (label);
- LABEL_NUSES (label) = 1;
- }
- }
- return 1;
+ if (TARGET_64BIT
+ && (size_needed > 4 || (desired_align > align && desired_align > 4)))
+ promoted_val = promote_duplicated_reg (DImode, val);
+ else if (size_needed > 2 || (desired_align > align && desired_align > 2))
+ promoted_val = promote_duplicated_reg (SImode, val);
+ else if (size_needed > 1 || (desired_align > align && desired_align > 1))
+ promoted_val = promote_duplicated_reg (HImode, val);
+ else
+ promoted_val = val;
+
+ return promoted_val;
}
-/* Expand strlen. */
+/* Expand string clear operation (bzero). Use i386 string operations when
+ profitable. See expand_movmem comment for explanation of individual
+ steps performed. */
int
-ix86_expand_strlen (rtx out, rtx src, rtx eoschar, rtx align)
+ix86_expand_setmem (rtx dst, rtx count_exp, rtx val_exp, rtx align_exp,
+ rtx expected_align_exp, rtx expected_size_exp)
{
- rtx addr, scratch1, scratch2, scratch3, scratch4;
+ rtx destreg;
+ rtx label = NULL;
+ rtx tmp;
+ rtx jump_around_label = NULL;
+ HOST_WIDE_INT align = 1;
+ unsigned HOST_WIDE_INT count = 0;
+ HOST_WIDE_INT expected_size = -1;
+ int size_needed = 0, epilogue_size_needed;
+ int desired_align = 0;
+ enum stringop_alg alg;
+ rtx promoted_val = NULL;
+ bool force_loopy_epilogue = false;
+ int dynamic_check;
+
+ if (CONST_INT_P (align_exp))
+ align = INTVAL (align_exp);
+ /* i386 can do misaligned access on reasonably increased cost. */
+ if (CONST_INT_P (expected_align_exp)
+ && INTVAL (expected_align_exp) > align)
+ align = INTVAL (expected_align_exp);
+ if (CONST_INT_P (count_exp))
+ count = expected_size = INTVAL (count_exp);
+ if (CONST_INT_P (expected_size_exp) && count == 0)
+ expected_size = INTVAL (expected_size_exp);
- /* The generic case of strlen expander is long. Avoid it's
- expanding unless TARGET_INLINE_ALL_STRINGOPS. */
+ /* Step 0: Decide on preferred algorithm, desired alignment and
+ size of chunks to be copied by main loop. */
- if (TARGET_UNROLL_STRLEN && eoschar == const0_rtx && optimize > 1
- && !TARGET_INLINE_ALL_STRINGOPS
- && !optimize_size
- && (GET_CODE (align) != CONST_INT || INTVAL (align) < 4))
- return 0;
+ alg = decide_alg (count, expected_size, true, &dynamic_check);
+ desired_align = decide_alignment (align, alg, expected_size);
- addr = force_reg (Pmode, XEXP (src, 0));
- scratch1 = gen_reg_rtx (Pmode);
+ if (!TARGET_ALIGN_STRINGOPS)
+ align = desired_align;
- if (TARGET_UNROLL_STRLEN && eoschar == const0_rtx && optimize > 1
- && !optimize_size)
+ if (alg == libcall)
+ return 0;
+ gcc_assert (alg != no_stringop);
+ if (!count)
+ count_exp = copy_to_mode_reg (counter_mode (count_exp), count_exp);
+ destreg = copy_to_mode_reg (Pmode, XEXP (dst, 0));
+ switch (alg)
{
- /* Well it seems that some optimizer does not combine a call like
- foo(strlen(bar), strlen(bar));
- when the move and the subtraction is done here. It does calculate
- the length just once when these instructions are done inside of
- output_strlen_unroll(). But I think since &bar[strlen(bar)] is
- often used and I use one fewer register for the lifetime of
- output_strlen_unroll() this is better. */
+ case libcall:
+ case no_stringop:
+ gcc_unreachable ();
+ case loop:
+ size_needed = GET_MODE_SIZE (Pmode);
+ break;
+ case unrolled_loop:
+ size_needed = GET_MODE_SIZE (Pmode) * 4;
+ break;
+ case rep_prefix_8_byte:
+ size_needed = 8;
+ break;
+ case rep_prefix_4_byte:
+ size_needed = 4;
+ break;
+ case rep_prefix_1_byte:
+ case loop_1_byte:
+ size_needed = 1;
+ break;
+ }
+ epilogue_size_needed = size_needed;
+
+ /* Step 1: Prologue guard. */
+
+ /* Alignment code needs count to be in register. */
+ if (CONST_INT_P (count_exp) && desired_align > align)
+ {
+ enum machine_mode mode = SImode;
+ if (TARGET_64BIT && (count & ~0xffffffff))
+ mode = DImode;
+ count_exp = force_reg (mode, count_exp);
+ }
+ /* Do the cheap promotion to allow better CSE across the
+ main loop and epilogue (ie one load of the big constant in the
+ front of all code. */
+ if (CONST_INT_P (val_exp))
+ promoted_val = promote_duplicated_reg_to_size (val_exp, size_needed,
+ desired_align, align);
+ /* Ensure that alignment prologue won't copy past end of block. */
+ if (size_needed > 1 || (desired_align > 1 && desired_align > align))
+ {
+ epilogue_size_needed = MAX (size_needed - 1, desired_align - align);
+ /* Epilogue always copies COUNT_EXP & EPILOGUE_SIZE_NEEDED bytes.
+ Make sure it is power of 2. */
+ epilogue_size_needed = smallest_pow2_greater_than (epilogue_size_needed);
+
+ /* To improve performance of small blocks, we jump around the VAL
+ promoting mode. This mean that if the promoted VAL is not constant,
+ we might not use it in the epilogue and have to use byte
+ loop variant. */
+ if (epilogue_size_needed > 2 && !promoted_val)
+ force_loopy_epilogue = true;
+ label = gen_label_rtx ();
+ emit_cmp_and_jump_insns (count_exp,
+ GEN_INT (epilogue_size_needed),
+ LTU, 0, counter_mode (count_exp), 1, label);
+ if (GET_CODE (count_exp) == CONST_INT)
+ ;
+ else if (expected_size == -1 || expected_size <= epilogue_size_needed)
+ predict_jump (REG_BR_PROB_BASE * 60 / 100);
+ else
+ predict_jump (REG_BR_PROB_BASE * 20 / 100);
+ }
+ if (dynamic_check != -1)
+ {
+ rtx hot_label = gen_label_rtx ();
+ jump_around_label = gen_label_rtx ();
+ emit_cmp_and_jump_insns (count_exp, GEN_INT (dynamic_check - 1),
+ LEU, 0, counter_mode (count_exp), 1, hot_label);
+ predict_jump (REG_BR_PROB_BASE * 90 / 100);
+ set_storage_via_libcall (dst, count_exp, val_exp, false);
+ emit_jump (jump_around_label);
+ emit_label (hot_label);
+ }
- emit_move_insn (out, addr);
+ /* Step 2: Alignment prologue. */
- ix86_expand_strlensi_unroll_1 (out, src, align);
+ /* Do the expensive promotion once we branched off the small blocks. */
+ if (!promoted_val)
+ promoted_val = promote_duplicated_reg_to_size (val_exp, size_needed,
+ desired_align, align);
+ gcc_assert (desired_align >= 1 && align >= 1);
- /* strlensi_unroll_1 returns the address of the zero at the end of
- the string, like memchr(), so compute the length by subtracting
- the start address. */
- if (TARGET_64BIT)
- emit_insn (gen_subdi3 (out, out, addr));
- else
- emit_insn (gen_subsi3 (out, out, addr));
+ if (desired_align > align)
+ {
+ /* Except for the first move in epilogue, we no longer know
+ constant offset in aliasing info. It don't seems to worth
+ the pain to maintain it for the first move, so throw away
+ the info early. */
+ dst = change_address (dst, BLKmode, destreg);
+ expand_setmem_prologue (dst, destreg, promoted_val, count_exp, align,
+ desired_align);
}
- else
+ if (label && size_needed == 1)
{
- rtx unspec;
- scratch2 = gen_reg_rtx (Pmode);
- scratch3 = gen_reg_rtx (Pmode);
- scratch4 = force_reg (Pmode, constm1_rtx);
+ emit_label (label);
+ LABEL_NUSES (label) = 1;
+ label = NULL;
+ }
- emit_move_insn (scratch3, addr);
- eoschar = force_reg (QImode, eoschar);
+ /* Step 3: Main loop. */
- emit_insn (gen_cld ());
- src = replace_equiv_address_nv (src, scratch3);
+ switch (alg)
+ {
+ case libcall:
+ case no_stringop:
+ gcc_unreachable ();
+ case loop_1_byte:
+ expand_set_or_movmem_via_loop (dst, NULL, destreg, NULL, promoted_val,
+ count_exp, QImode, 1, expected_size);
+ break;
+ case loop:
+ expand_set_or_movmem_via_loop (dst, NULL, destreg, NULL, promoted_val,
+ count_exp, Pmode, 1, expected_size);
+ break;
+ case unrolled_loop:
+ expand_set_or_movmem_via_loop (dst, NULL, destreg, NULL, promoted_val,
+ count_exp, Pmode, 4, expected_size);
+ break;
+ case rep_prefix_8_byte:
+ expand_setmem_via_rep_stos (dst, destreg, promoted_val, count_exp,
+ DImode);
+ break;
+ case rep_prefix_4_byte:
+ expand_setmem_via_rep_stos (dst, destreg, promoted_val, count_exp,
+ SImode);
+ break;
+ case rep_prefix_1_byte:
+ expand_setmem_via_rep_stos (dst, destreg, promoted_val, count_exp,
+ QImode);
+ break;
+ }
+ /* Adjust properly the offset of src and dest memory for aliasing. */
+ if (CONST_INT_P (count_exp))
+ dst = adjust_automodify_address_nv (dst, BLKmode, destreg,
+ (count / size_needed) * size_needed);
+ else
+ dst = change_address (dst, BLKmode, destreg);
- /* If .md starts supporting :P, this can be done in .md. */
- unspec = gen_rtx_UNSPEC (Pmode, gen_rtvec (4, src, eoschar, align,
- scratch4), UNSPEC_SCAS);
- emit_insn (gen_strlenqi_1 (scratch1, scratch3, unspec));
- if (TARGET_64BIT)
+ /* Step 4: Epilogue to copy the remaining bytes. */
+
+ if (label)
+ {
+ /* When the main loop is done, COUNT_EXP might hold original count,
+ while we want to copy only COUNT_EXP & SIZE_NEEDED bytes.
+ Epilogue code will actually copy COUNT_EXP & EPILOGUE_SIZE_NEEDED
+ bytes. Compensate if needed. */
+
+ if (size_needed < desired_align - align)
{
- emit_insn (gen_one_cmpldi2 (scratch2, scratch1));
- emit_insn (gen_adddi3 (out, scratch2, constm1_rtx));
+ tmp =
+ expand_simple_binop (counter_mode (count_exp), AND, count_exp,
+ GEN_INT (size_needed - 1), count_exp, 1,
+ OPTAB_DIRECT);
+ size_needed = desired_align - align + 1;
+ if (tmp != count_exp)
+ emit_move_insn (count_exp, tmp);
}
+ emit_label (label);
+ LABEL_NUSES (label) = 1;
+ }
+ if (count_exp != const0_rtx && epilogue_size_needed > 1)
+ {
+ if (force_loopy_epilogue)
+ expand_setmem_epilogue_via_loop (dst, destreg, val_exp, count_exp,
+ size_needed);
else
- {
- emit_insn (gen_one_cmplsi2 (scratch2, scratch1));
- emit_insn (gen_addsi3 (out, scratch2, constm1_rtx));
- }
+ expand_setmem_epilogue (dst, destreg, promoted_val, count_exp,
+ size_needed);
}
+ if (jump_around_label)
+ emit_label (jump_around_label);
return 1;
}
rtx cmp;
align = 0;
- if (GET_CODE (align_rtx) == CONST_INT)
+ if (CONST_INT_P (align_rtx))
align = INTVAL (align_rtx);
/* Loop to check 1..3 bytes for null to get an aligned pointer. */
else
emit_insn (gen_subsi3_carry (out, out, GEN_INT (3), cmp));
- emit_label (end_0_label);
+ emit_label (end_0_label);
+}
+
+/* Expand strlen. */
+
+int
+ix86_expand_strlen (rtx out, rtx src, rtx eoschar, rtx align)
+{
+ rtx addr, scratch1, scratch2, scratch3, scratch4;
+
+ /* The generic case of strlen expander is long. Avoid it's
+ expanding unless TARGET_INLINE_ALL_STRINGOPS. */
+
+ if (TARGET_UNROLL_STRLEN && eoschar == const0_rtx && optimize > 1
+ && !TARGET_INLINE_ALL_STRINGOPS
+ && !optimize_size
+ && (!CONST_INT_P (align) || INTVAL (align) < 4))
+ return 0;
+
+ addr = force_reg (Pmode, XEXP (src, 0));
+ scratch1 = gen_reg_rtx (Pmode);
+
+ if (TARGET_UNROLL_STRLEN && eoschar == const0_rtx && optimize > 1
+ && !optimize_size)
+ {
+ /* Well it seems that some optimizer does not combine a call like
+ foo(strlen(bar), strlen(bar));
+ when the move and the subtraction is done here. It does calculate
+ the length just once when these instructions are done inside of
+ output_strlen_unroll(). But I think since &bar[strlen(bar)] is
+ often used and I use one fewer register for the lifetime of
+ output_strlen_unroll() this is better. */
+
+ emit_move_insn (out, addr);
+
+ ix86_expand_strlensi_unroll_1 (out, src, align);
+
+ /* strlensi_unroll_1 returns the address of the zero at the end of
+ the string, like memchr(), so compute the length by subtracting
+ the start address. */
+ if (TARGET_64BIT)
+ emit_insn (gen_subdi3 (out, out, addr));
+ else
+ emit_insn (gen_subsi3 (out, out, addr));
+ }
+ else
+ {
+ rtx unspec;
+ scratch2 = gen_reg_rtx (Pmode);
+ scratch3 = gen_reg_rtx (Pmode);
+ scratch4 = force_reg (Pmode, constm1_rtx);
+
+ emit_move_insn (scratch3, addr);
+ eoschar = force_reg (QImode, eoschar);
+
+ src = replace_equiv_address_nv (src, scratch3);
+
+ /* If .md starts supporting :P, this can be done in .md. */
+ unspec = gen_rtx_UNSPEC (Pmode, gen_rtvec (4, src, eoschar, align,
+ scratch4), UNSPEC_SCAS);
+ emit_insn (gen_strlenqi_1 (scratch1, scratch3, unspec));
+ if (TARGET_64BIT)
+ {
+ emit_insn (gen_one_cmpldi2 (scratch2, scratch1));
+ emit_insn (gen_adddi3 (out, scratch2, constm1_rtx));
+ }
+ else
+ {
+ emit_insn (gen_one_cmplsi2 (scratch2, scratch1));
+ emit_insn (gen_addsi3 (out, scratch2, constm1_rtx));
+ }
+ }
+ return 1;
+}
+
+/* For given symbol (function) construct code to compute address of it's PLT
+ entry in large x86-64 PIC model. */
+rtx
+construct_plt_address (rtx symbol)
+{
+ rtx tmp = gen_reg_rtx (Pmode);
+ rtx unspec = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, symbol), UNSPEC_PLTOFF);
+
+ gcc_assert (GET_CODE (symbol) == SYMBOL_REF);
+ gcc_assert (ix86_cmodel == CM_LARGE_PIC);
+
+ emit_move_insn (tmp, gen_rtx_CONST (Pmode, unspec));
+ emit_insn (gen_adddi3 (tmp, tmp, pic_offset_table_rtx));
+ return tmp;
}
void
else
{
/* Static functions and indirect calls don't need the pic register. */
- if (! TARGET_64BIT && flag_pic
+ if (flag_pic && (!TARGET_64BIT || ix86_cmodel == CM_LARGE_PIC)
&& GET_CODE (XEXP (fnaddr, 0)) == SYMBOL_REF
&& ! SYMBOL_REF_LOCAL_P (XEXP (fnaddr, 0)))
use_reg (&use, pic_offset_table_rtx);
use_reg (&use, al);
}
- if (! call_insn_operand (XEXP (fnaddr, 0), Pmode))
+ if (ix86_cmodel == CM_LARGE_PIC
+ && GET_CODE (fnaddr) == MEM
+ && GET_CODE (XEXP (fnaddr, 0)) == SYMBOL_REF
+ && !local_symbolic_operand (XEXP (fnaddr, 0), VOIDmode))
+ fnaddr = gen_rtx_MEM (QImode, construct_plt_address (XEXP (fnaddr, 0)));
+ else if (! call_insn_operand (XEXP (fnaddr, 0), Pmode))
{
fnaddr = copy_to_mode_reg (Pmode, XEXP (fnaddr, 0));
fnaddr = gen_rtx_MEM (QImode, fnaddr);
{
rtx addr;
addr = copy_to_mode_reg (Pmode, XEXP (fnaddr, 0));
- fnaddr = gen_rtx_REG (Pmode, FIRST_REX_INT_REG + 3 /* R11 */);
+ fnaddr = gen_rtx_REG (Pmode, R11_REG);
emit_move_insn (fnaddr, addr);
fnaddr = gen_rtx_MEM (QImode, fnaddr);
}
extract_insn_cached (insn);
for (i = recog_data.n_operands - 1; i >= 0; --i)
- if (GET_CODE (recog_data.operand[i]) == MEM)
+ if (MEM_P (recog_data.operand[i]))
{
return memory_address_length (XEXP (recog_data.operand[i], 0));
break;
case PROCESSOR_PENTIUM4:
case PROCESSOR_ATHLON:
case PROCESSOR_K8:
+ case PROCESSOR_AMDFAM10:
case PROCESSOR_NOCONA:
case PROCESSOR_GENERIC32:
case PROCESSOR_GENERIC64:
return 3;
+ case PROCESSOR_CORE2:
+ return 4;
+
default:
return 1;
}
else
return 0;
- if (GET_CODE (set) != REG || REGNO (set) != FLAGS_REG)
+ if (!REG_P (set) || REGNO (set) != FLAGS_REG)
return 0;
/* This test is true if the dependent insn reads the flags but
int i;
extract_insn_cached (insn);
for (i = recog_data.n_operands - 1; i >= 0; --i)
- if (GET_CODE (recog_data.operand[i]) == MEM)
+ if (MEM_P (recog_data.operand[i]))
{
addr = XEXP (recog_data.operand[i], 0);
goto found;
&& (set = single_set (dep_insn)) != NULL_RTX
&& (set2 = single_set (insn)) != NULL_RTX
&& rtx_equal_p (SET_DEST (set), SET_SRC (set2))
- && GET_CODE (SET_DEST (set2)) == MEM)
+ && MEM_P (SET_DEST (set2)))
cost += 1;
/* Show ability of reorder buffer to hide latency of load by executing
case PROCESSOR_ATHLON:
case PROCESSOR_K8:
+ case PROCESSOR_AMDFAM10:
case PROCESSOR_GENERIC32:
case PROCESSOR_GENERIC64:
memory = get_attr_memory (insn);
int
ix86_data_alignment (tree type, int align)
{
- int max_align = optimize_size ? BITS_PER_WORD : 256;
+ int max_align = optimize_size ? BITS_PER_WORD : MIN (256, MAX_OFILE_ALIGNMENT);
if (AGGREGATE_TYPE_P (type)
&& TYPE_SIZE (type)
IX86_BUILTIN_CMPNGEPD,
IX86_BUILTIN_CMPORDPD,
IX86_BUILTIN_CMPUNORDPD,
- IX86_BUILTIN_CMPNEPD,
IX86_BUILTIN_CMPEQSD,
IX86_BUILTIN_CMPLTSD,
IX86_BUILTIN_CMPLESD,
IX86_BUILTIN_CMPNLESD,
IX86_BUILTIN_CMPORDSD,
IX86_BUILTIN_CMPUNORDSD,
- IX86_BUILTIN_CMPNESD,
IX86_BUILTIN_COMIEQSD,
IX86_BUILTIN_COMILTSD,
IX86_BUILTIN_PSHUFLW,
IX86_BUILTIN_PSHUFD,
- IX86_BUILTIN_PSLLW128,
- IX86_BUILTIN_PSLLD128,
- IX86_BUILTIN_PSLLQ128,
- IX86_BUILTIN_PSRAW128,
- IX86_BUILTIN_PSRAD128,
- IX86_BUILTIN_PSRLW128,
- IX86_BUILTIN_PSRLD128,
- IX86_BUILTIN_PSRLQ128,
IX86_BUILTIN_PSLLDQI128,
IX86_BUILTIN_PSLLWI128,
IX86_BUILTIN_PSLLDI128,
IX86_BUILTIN_PSRLDI128,
IX86_BUILTIN_PSRLQI128,
+ IX86_BUILTIN_PSLLDQ128,
+ IX86_BUILTIN_PSLLW128,
+ IX86_BUILTIN_PSLLD128,
+ IX86_BUILTIN_PSLLQ128,
+ IX86_BUILTIN_PSRAW128,
+ IX86_BUILTIN_PSRAD128,
+ IX86_BUILTIN_PSRLW128,
+ IX86_BUILTIN_PSRLD128,
+ IX86_BUILTIN_PSRLQ128,
+
IX86_BUILTIN_PUNPCKHBW128,
IX86_BUILTIN_PUNPCKHWD128,
IX86_BUILTIN_PUNPCKHDQ128,
IX86_BUILTIN_PABSW128,
IX86_BUILTIN_PABSD128,
+ /* AMDFAM10 - SSE4A New Instructions. */
+ IX86_BUILTIN_MOVNTSD,
+ IX86_BUILTIN_MOVNTSS,
+ IX86_BUILTIN_EXTRQI,
+ IX86_BUILTIN_EXTRQ,
+ IX86_BUILTIN_INSERTQI,
+ IX86_BUILTIN_INSERTQ,
+
IX86_BUILTIN_VEC_INIT_V2SI,
IX86_BUILTIN_VEC_INIT_V4HI,
IX86_BUILTIN_VEC_INIT_V8QI,
IX86_BUILTIN_MAX
};
-#define def_builtin(MASK, NAME, TYPE, CODE) \
-do { \
- if ((MASK) & target_flags \
- && (!((MASK) & MASK_64BIT) || TARGET_64BIT)) \
- add_builtin_function ((NAME), (TYPE), (CODE), BUILT_IN_MD, \
- NULL, NULL_TREE); \
-} while (0)
+/* Table for the ix86 builtin decls. */
+static GTY(()) tree ix86_builtins[(int) IX86_BUILTIN_MAX];
+
+/* Add a ix86 target builtin function with CODE, NAME and TYPE. Do so,
+ * if the target_flags include one of MASK. Stores the function decl
+ * in the ix86_builtins array.
+ * Returns the function decl or NULL_TREE, if the builtin was not added. */
+
+static inline tree
+def_builtin (int mask, const char *name, tree type, enum ix86_builtins code)
+{
+ tree decl = NULL_TREE;
+
+ if (mask & target_flags
+ && (!(mask & MASK_64BIT) || TARGET_64BIT))
+ {
+ decl = add_builtin_function (name, type, code, BUILT_IN_MD,
+ NULL, NULL_TREE);
+ ix86_builtins[(int) code] = decl;
+ }
+
+ return decl;
+}
+
+/* Like def_builtin, but also marks the function decl "const". */
+
+static inline tree
+def_builtin_const (int mask, const char *name, tree type,
+ enum ix86_builtins code)
+{
+ tree decl = def_builtin (mask, name, type, code);
+ if (decl)
+ TREE_READONLY (decl) = 1;
+ return decl;
+}
/* Bits for builtin_description.flag. */
BUILTIN_DESC_SWAP_OPERANDS },
{ MASK_SSE, CODE_FOR_sse_vmmaskcmpv4sf3, "__builtin_ia32_cmpngess", IX86_BUILTIN_CMPNGESS, UNGT,
BUILTIN_DESC_SWAP_OPERANDS },
- { MASK_SSE, CODE_FOR_sse_vmmaskcmpv4sf3, "__builtin_ia32_cmpordss", IX86_BUILTIN_CMPORDSS, UNORDERED, 0 },
+ { MASK_SSE, CODE_FOR_sse_vmmaskcmpv4sf3, "__builtin_ia32_cmpordss", IX86_BUILTIN_CMPORDSS, ORDERED, 0 },
{ MASK_SSE, CODE_FOR_sminv4sf3, "__builtin_ia32_minps", IX86_BUILTIN_MINPS, 0, 0 },
{ MASK_SSE, CODE_FOR_smaxv4sf3, "__builtin_ia32_maxps", IX86_BUILTIN_MAXPS, 0, 0 },
{ MASK_SSE2, CODE_FOR_sse2_cvttps2dq, 0, IX86_BUILTIN_CVTTPS2DQ, 0, 0 },
/* SSE3 */
- { MASK_SSE3, CODE_FOR_sse3_movshdup, 0, IX86_BUILTIN_MOVSHDUP, 0, 0 },
- { MASK_SSE3, CODE_FOR_sse3_movsldup, 0, IX86_BUILTIN_MOVSLDUP, 0, 0 },
+ { MASK_SSE3, CODE_FOR_sse3_movshdup, "__builtin_ia32_movshdup", IX86_BUILTIN_MOVSHDUP, 0, 0 },
+ { MASK_SSE3, CODE_FOR_sse3_movsldup, "__builtin_ia32_movsldup", IX86_BUILTIN_MOVSLDUP, 0, 0 },
/* SSSE3 */
{ MASK_SSSE3, CODE_FOR_absv16qi2, "__builtin_ia32_pabsb128", IX86_BUILTIN_PABSB128, 0, 0 },
{ MASK_SSSE3, CODE_FOR_absv2si2, "__builtin_ia32_pabsd", IX86_BUILTIN_PABSD, 0, 0 },
};
-static void
-ix86_init_builtins (void)
-{
- if (TARGET_MMX)
- ix86_init_mmx_sse_builtins ();
-}
-
/* Set up all the MMX/SSE builtins. This is not called if TARGET_MMX
is zero. Otherwise, if TARGET_SSE is not set, only expand the MMX
builtins. */
const struct builtin_description * d;
size_t i;
- tree V16QI_type_node = build_vector_type_for_mode (intQI_type_node, V16QImode);
+ tree V16QI_type_node = build_vector_type_for_mode (char_type_node, V16QImode);
tree V2SI_type_node = build_vector_type_for_mode (intSI_type_node, V2SImode);
tree V2SF_type_node = build_vector_type_for_mode (float_type_node, V2SFmode);
tree V2DI_type_node
tree V4SF_type_node = build_vector_type_for_mode (float_type_node, V4SFmode);
tree V4SI_type_node = build_vector_type_for_mode (intSI_type_node, V4SImode);
tree V4HI_type_node = build_vector_type_for_mode (intHI_type_node, V4HImode);
- tree V8QI_type_node = build_vector_type_for_mode (intQI_type_node, V8QImode);
+ tree V8QI_type_node = build_vector_type_for_mode (char_type_node, V8QImode);
tree V8HI_type_node = build_vector_type_for_mode (intHI_type_node, V8HImode);
tree pchar_type_node = build_pointer_type (char_type_node);
tree v8hi_ftype_v8hi_int
= build_function_type_list (V8HI_type_node,
V8HI_type_node, integer_type_node, NULL_TREE);
- tree v8hi_ftype_v8hi_v2di
- = build_function_type_list (V8HI_type_node,
- V8HI_type_node, V2DI_type_node, NULL_TREE);
- tree v4si_ftype_v4si_v2di
- = build_function_type_list (V4SI_type_node,
- V4SI_type_node, V2DI_type_node, NULL_TREE);
tree v4si_ftype_v8hi_v8hi
= build_function_type_list (V4SI_type_node,
V8HI_type_node, V8HI_type_node, NULL_TREE);
= build_function_type_list (void_type_node,
pchar_type_node, V16QI_type_node, NULL_TREE);
+ tree v2di_ftype_v2di_unsigned_unsigned
+ = build_function_type_list (V2DI_type_node, V2DI_type_node,
+ unsigned_type_node, unsigned_type_node,
+ NULL_TREE);
+ tree v2di_ftype_v2di_v2di_unsigned_unsigned
+ = build_function_type_list (V2DI_type_node, V2DI_type_node, V2DI_type_node,
+ unsigned_type_node, unsigned_type_node,
+ NULL_TREE);
+ tree v2di_ftype_v2di_v16qi
+ = build_function_type_list (V2DI_type_node, V2DI_type_node, V16QI_type_node,
+ NULL_TREE);
+
tree float80_type;
tree float128_type;
tree ftype;
def_builtin (MASK_SSE, "__builtin_ia32_ldmxcsr", void_ftype_unsigned, IX86_BUILTIN_LDMXCSR);
def_builtin (MASK_SSE, "__builtin_ia32_stmxcsr", unsigned_ftype_void, IX86_BUILTIN_STMXCSR);
- def_builtin (MASK_SSE, "__builtin_ia32_cvtpi2ps", v4sf_ftype_v4sf_v2si, IX86_BUILTIN_CVTPI2PS);
- def_builtin (MASK_SSE, "__builtin_ia32_cvtps2pi", v2si_ftype_v4sf, IX86_BUILTIN_CVTPS2PI);
- def_builtin (MASK_SSE, "__builtin_ia32_cvtsi2ss", v4sf_ftype_v4sf_int, IX86_BUILTIN_CVTSI2SS);
- def_builtin (MASK_SSE | MASK_64BIT, "__builtin_ia32_cvtsi642ss", v4sf_ftype_v4sf_int64, IX86_BUILTIN_CVTSI642SS);
- def_builtin (MASK_SSE, "__builtin_ia32_cvtss2si", int_ftype_v4sf, IX86_BUILTIN_CVTSS2SI);
- def_builtin (MASK_SSE | MASK_64BIT, "__builtin_ia32_cvtss2si64", int64_ftype_v4sf, IX86_BUILTIN_CVTSS2SI64);
- def_builtin (MASK_SSE, "__builtin_ia32_cvttps2pi", v2si_ftype_v4sf, IX86_BUILTIN_CVTTPS2PI);
- def_builtin (MASK_SSE, "__builtin_ia32_cvttss2si", int_ftype_v4sf, IX86_BUILTIN_CVTTSS2SI);
- def_builtin (MASK_SSE | MASK_64BIT, "__builtin_ia32_cvttss2si64", int64_ftype_v4sf, IX86_BUILTIN_CVTTSS2SI64);
+ def_builtin_const (MASK_SSE, "__builtin_ia32_cvtpi2ps", v4sf_ftype_v4sf_v2si, IX86_BUILTIN_CVTPI2PS);
+ def_builtin_const (MASK_SSE, "__builtin_ia32_cvtps2pi", v2si_ftype_v4sf, IX86_BUILTIN_CVTPS2PI);
+ def_builtin_const (MASK_SSE, "__builtin_ia32_cvtsi2ss", v4sf_ftype_v4sf_int, IX86_BUILTIN_CVTSI2SS);
+ def_builtin_const (MASK_SSE | MASK_64BIT, "__builtin_ia32_cvtsi642ss", v4sf_ftype_v4sf_int64, IX86_BUILTIN_CVTSI642SS);
+ def_builtin_const (MASK_SSE, "__builtin_ia32_cvtss2si", int_ftype_v4sf, IX86_BUILTIN_CVTSS2SI);
+ def_builtin_const (MASK_SSE | MASK_64BIT, "__builtin_ia32_cvtss2si64", int64_ftype_v4sf, IX86_BUILTIN_CVTSS2SI64);
+ def_builtin_const (MASK_SSE, "__builtin_ia32_cvttps2pi", v2si_ftype_v4sf, IX86_BUILTIN_CVTTPS2PI);
+ def_builtin_const (MASK_SSE, "__builtin_ia32_cvttss2si", int_ftype_v4sf, IX86_BUILTIN_CVTTSS2SI);
+ def_builtin_const (MASK_SSE | MASK_64BIT, "__builtin_ia32_cvttss2si64", int64_ftype_v4sf, IX86_BUILTIN_CVTTSS2SI64);
def_builtin (MASK_SSE | MASK_3DNOW_A, "__builtin_ia32_maskmovq", void_ftype_v8qi_v8qi_pchar, IX86_BUILTIN_MASKMOVQ);
def_builtin (MASK_SSE, "__builtin_ia32_rcpss", v4sf_ftype_v4sf, IX86_BUILTIN_RCPSS);
def_builtin (MASK_SSE, "__builtin_ia32_rsqrtps", v4sf_ftype_v4sf, IX86_BUILTIN_RSQRTPS);
def_builtin (MASK_SSE, "__builtin_ia32_rsqrtss", v4sf_ftype_v4sf, IX86_BUILTIN_RSQRTSS);
- def_builtin (MASK_SSE, "__builtin_ia32_sqrtps", v4sf_ftype_v4sf, IX86_BUILTIN_SQRTPS);
- def_builtin (MASK_SSE, "__builtin_ia32_sqrtss", v4sf_ftype_v4sf, IX86_BUILTIN_SQRTSS);
+ def_builtin_const (MASK_SSE, "__builtin_ia32_sqrtps", v4sf_ftype_v4sf, IX86_BUILTIN_SQRTPS);
+ def_builtin_const (MASK_SSE, "__builtin_ia32_sqrtss", v4sf_ftype_v4sf, IX86_BUILTIN_SQRTSS);
def_builtin (MASK_SSE, "__builtin_ia32_shufps", v4sf_ftype_v4sf_v4sf_int, IX86_BUILTIN_SHUFPS);
def_builtin (MASK_SSE2, "__builtin_ia32_pshufhw", v8hi_ftype_v8hi_int, IX86_BUILTIN_PSHUFHW);
def_builtin (MASK_SSE2, "__builtin_ia32_psadbw128", v2di_ftype_v16qi_v16qi, IX86_BUILTIN_PSADBW128);
- def_builtin (MASK_SSE2, "__builtin_ia32_sqrtpd", v2df_ftype_v2df, IX86_BUILTIN_SQRTPD);
- def_builtin (MASK_SSE2, "__builtin_ia32_sqrtsd", v2df_ftype_v2df, IX86_BUILTIN_SQRTSD);
+ def_builtin_const (MASK_SSE2, "__builtin_ia32_sqrtpd", v2df_ftype_v2df, IX86_BUILTIN_SQRTPD);
+ def_builtin_const (MASK_SSE2, "__builtin_ia32_sqrtsd", v2df_ftype_v2df, IX86_BUILTIN_SQRTSD);
def_builtin (MASK_SSE2, "__builtin_ia32_shufpd", v2df_ftype_v2df_v2df_int, IX86_BUILTIN_SHUFPD);
- def_builtin (MASK_SSE2, "__builtin_ia32_cvtdq2pd", v2df_ftype_v4si, IX86_BUILTIN_CVTDQ2PD);
- def_builtin (MASK_SSE2, "__builtin_ia32_cvtdq2ps", v4sf_ftype_v4si, IX86_BUILTIN_CVTDQ2PS);
+ def_builtin_const (MASK_SSE2, "__builtin_ia32_cvtdq2pd", v2df_ftype_v4si, IX86_BUILTIN_CVTDQ2PD);
+ def_builtin_const (MASK_SSE2, "__builtin_ia32_cvtdq2ps", v4sf_ftype_v4si, IX86_BUILTIN_CVTDQ2PS);
- def_builtin (MASK_SSE2, "__builtin_ia32_cvtpd2dq", v4si_ftype_v2df, IX86_BUILTIN_CVTPD2DQ);
- def_builtin (MASK_SSE2, "__builtin_ia32_cvtpd2pi", v2si_ftype_v2df, IX86_BUILTIN_CVTPD2PI);
- def_builtin (MASK_SSE2, "__builtin_ia32_cvtpd2ps", v4sf_ftype_v2df, IX86_BUILTIN_CVTPD2PS);
- def_builtin (MASK_SSE2, "__builtin_ia32_cvttpd2dq", v4si_ftype_v2df, IX86_BUILTIN_CVTTPD2DQ);
- def_builtin (MASK_SSE2, "__builtin_ia32_cvttpd2pi", v2si_ftype_v2df, IX86_BUILTIN_CVTTPD2PI);
+ def_builtin_const (MASK_SSE2, "__builtin_ia32_cvtpd2dq", v4si_ftype_v2df, IX86_BUILTIN_CVTPD2DQ);
+ def_builtin_const (MASK_SSE2, "__builtin_ia32_cvtpd2pi", v2si_ftype_v2df, IX86_BUILTIN_CVTPD2PI);
+ def_builtin_const (MASK_SSE2, "__builtin_ia32_cvtpd2ps", v4sf_ftype_v2df, IX86_BUILTIN_CVTPD2PS);
+ def_builtin_const (MASK_SSE2, "__builtin_ia32_cvttpd2dq", v4si_ftype_v2df, IX86_BUILTIN_CVTTPD2DQ);
+ def_builtin_const (MASK_SSE2, "__builtin_ia32_cvttpd2pi", v2si_ftype_v2df, IX86_BUILTIN_CVTTPD2PI);
- def_builtin (MASK_SSE2, "__builtin_ia32_cvtpi2pd", v2df_ftype_v2si, IX86_BUILTIN_CVTPI2PD);
+ def_builtin_const (MASK_SSE2, "__builtin_ia32_cvtpi2pd", v2df_ftype_v2si, IX86_BUILTIN_CVTPI2PD);
- def_builtin (MASK_SSE2, "__builtin_ia32_cvtsd2si", int_ftype_v2df, IX86_BUILTIN_CVTSD2SI);
- def_builtin (MASK_SSE2, "__builtin_ia32_cvttsd2si", int_ftype_v2df, IX86_BUILTIN_CVTTSD2SI);
- def_builtin (MASK_SSE2 | MASK_64BIT, "__builtin_ia32_cvtsd2si64", int64_ftype_v2df, IX86_BUILTIN_CVTSD2SI64);
- def_builtin (MASK_SSE2 | MASK_64BIT, "__builtin_ia32_cvttsd2si64", int64_ftype_v2df, IX86_BUILTIN_CVTTSD2SI64);
+ def_builtin_const (MASK_SSE2, "__builtin_ia32_cvtsd2si", int_ftype_v2df, IX86_BUILTIN_CVTSD2SI);
+ def_builtin_const (MASK_SSE2, "__builtin_ia32_cvttsd2si", int_ftype_v2df, IX86_BUILTIN_CVTTSD2SI);
+ def_builtin_const (MASK_SSE2 | MASK_64BIT, "__builtin_ia32_cvtsd2si64", int64_ftype_v2df, IX86_BUILTIN_CVTSD2SI64);
+ def_builtin_const (MASK_SSE2 | MASK_64BIT, "__builtin_ia32_cvttsd2si64", int64_ftype_v2df, IX86_BUILTIN_CVTTSD2SI64);
- def_builtin (MASK_SSE2, "__builtin_ia32_cvtps2dq", v4si_ftype_v4sf, IX86_BUILTIN_CVTPS2DQ);
- def_builtin (MASK_SSE2, "__builtin_ia32_cvtps2pd", v2df_ftype_v4sf, IX86_BUILTIN_CVTPS2PD);
- def_builtin (MASK_SSE2, "__builtin_ia32_cvttps2dq", v4si_ftype_v4sf, IX86_BUILTIN_CVTTPS2DQ);
+ def_builtin_const (MASK_SSE2, "__builtin_ia32_cvtps2dq", v4si_ftype_v4sf, IX86_BUILTIN_CVTPS2DQ);
+ def_builtin_const (MASK_SSE2, "__builtin_ia32_cvtps2pd", v2df_ftype_v4sf, IX86_BUILTIN_CVTPS2PD);
+ def_builtin_const (MASK_SSE2, "__builtin_ia32_cvttps2dq", v4si_ftype_v4sf, IX86_BUILTIN_CVTTPS2DQ);
- def_builtin (MASK_SSE2, "__builtin_ia32_cvtsi2sd", v2df_ftype_v2df_int, IX86_BUILTIN_CVTSI2SD);
- def_builtin (MASK_SSE2 | MASK_64BIT, "__builtin_ia32_cvtsi642sd", v2df_ftype_v2df_int64, IX86_BUILTIN_CVTSI642SD);
- def_builtin (MASK_SSE2, "__builtin_ia32_cvtsd2ss", v4sf_ftype_v4sf_v2df, IX86_BUILTIN_CVTSD2SS);
- def_builtin (MASK_SSE2, "__builtin_ia32_cvtss2sd", v2df_ftype_v2df_v4sf, IX86_BUILTIN_CVTSS2SD);
+ def_builtin_const (MASK_SSE2, "__builtin_ia32_cvtsi2sd", v2df_ftype_v2df_int, IX86_BUILTIN_CVTSI2SD);
+ def_builtin_const (MASK_SSE2 | MASK_64BIT, "__builtin_ia32_cvtsi642sd", v2df_ftype_v2df_int64, IX86_BUILTIN_CVTSI642SD);
+ def_builtin_const (MASK_SSE2, "__builtin_ia32_cvtsd2ss", v4sf_ftype_v4sf_v2df, IX86_BUILTIN_CVTSD2SS);
+ def_builtin_const (MASK_SSE2, "__builtin_ia32_cvtss2sd", v2df_ftype_v2df_v4sf, IX86_BUILTIN_CVTSS2SD);
def_builtin (MASK_SSE2, "__builtin_ia32_clflush", void_ftype_pcvoid, IX86_BUILTIN_CLFLUSH);
def_builtin (MASK_SSE2, "__builtin_ia32_lfence", void_ftype_void, IX86_BUILTIN_LFENCE);
def_builtin (MASK_SSE2, "__builtin_ia32_pmuludq", di_ftype_v2si_v2si, IX86_BUILTIN_PMULUDQ);
def_builtin (MASK_SSE2, "__builtin_ia32_pmuludq128", v2di_ftype_v4si_v4si, IX86_BUILTIN_PMULUDQ128);
- def_builtin (MASK_SSE2, "__builtin_ia32_psllw128", v8hi_ftype_v8hi_v2di, IX86_BUILTIN_PSLLW128);
- def_builtin (MASK_SSE2, "__builtin_ia32_pslld128", v4si_ftype_v4si_v2di, IX86_BUILTIN_PSLLD128);
- def_builtin (MASK_SSE2, "__builtin_ia32_psllq128", v2di_ftype_v2di_v2di, IX86_BUILTIN_PSLLQ128);
-
- def_builtin (MASK_SSE2, "__builtin_ia32_psrlw128", v8hi_ftype_v8hi_v2di, IX86_BUILTIN_PSRLW128);
- def_builtin (MASK_SSE2, "__builtin_ia32_psrld128", v4si_ftype_v4si_v2di, IX86_BUILTIN_PSRLD128);
- def_builtin (MASK_SSE2, "__builtin_ia32_psrlq128", v2di_ftype_v2di_v2di, IX86_BUILTIN_PSRLQ128);
-
- def_builtin (MASK_SSE2, "__builtin_ia32_psraw128", v8hi_ftype_v8hi_v2di, IX86_BUILTIN_PSRAW128);
- def_builtin (MASK_SSE2, "__builtin_ia32_psrad128", v4si_ftype_v4si_v2di, IX86_BUILTIN_PSRAD128);
-
def_builtin (MASK_SSE2, "__builtin_ia32_pslldqi128", v2di_ftype_v2di_int, IX86_BUILTIN_PSLLDQI128);
def_builtin (MASK_SSE2, "__builtin_ia32_psllwi128", v8hi_ftype_v8hi_int, IX86_BUILTIN_PSLLWI128);
def_builtin (MASK_SSE2, "__builtin_ia32_pslldi128", v4si_ftype_v4si_int, IX86_BUILTIN_PSLLDI128);
def_builtin (MASK_SSE2, "__builtin_ia32_psllqi128", v2di_ftype_v2di_int, IX86_BUILTIN_PSLLQI128);
+ def_builtin (MASK_SSE2, "__builtin_ia32_psllw128", v8hi_ftype_v8hi_v8hi, IX86_BUILTIN_PSLLW128);
+ def_builtin (MASK_SSE2, "__builtin_ia32_pslld128", v4si_ftype_v4si_v4si, IX86_BUILTIN_PSLLD128);
+ def_builtin (MASK_SSE2, "__builtin_ia32_psllq128", v2di_ftype_v2di_v2di, IX86_BUILTIN_PSLLQ128);
def_builtin (MASK_SSE2, "__builtin_ia32_psrldqi128", v2di_ftype_v2di_int, IX86_BUILTIN_PSRLDQI128);
def_builtin (MASK_SSE2, "__builtin_ia32_psrlwi128", v8hi_ftype_v8hi_int, IX86_BUILTIN_PSRLWI128);
def_builtin (MASK_SSE2, "__builtin_ia32_psrldi128", v4si_ftype_v4si_int, IX86_BUILTIN_PSRLDI128);
def_builtin (MASK_SSE2, "__builtin_ia32_psrlqi128", v2di_ftype_v2di_int, IX86_BUILTIN_PSRLQI128);
+ def_builtin (MASK_SSE2, "__builtin_ia32_psrlw128", v8hi_ftype_v8hi_v8hi, IX86_BUILTIN_PSRLW128);
+ def_builtin (MASK_SSE2, "__builtin_ia32_psrld128", v4si_ftype_v4si_v4si, IX86_BUILTIN_PSRLD128);
+ def_builtin (MASK_SSE2, "__builtin_ia32_psrlq128", v2di_ftype_v2di_v2di, IX86_BUILTIN_PSRLQ128);
def_builtin (MASK_SSE2, "__builtin_ia32_psrawi128", v8hi_ftype_v8hi_int, IX86_BUILTIN_PSRAWI128);
def_builtin (MASK_SSE2, "__builtin_ia32_psradi128", v4si_ftype_v4si_int, IX86_BUILTIN_PSRADI128);
+ def_builtin (MASK_SSE2, "__builtin_ia32_psraw128", v8hi_ftype_v8hi_v8hi, IX86_BUILTIN_PSRAW128);
+ def_builtin (MASK_SSE2, "__builtin_ia32_psrad128", v4si_ftype_v4si_v4si, IX86_BUILTIN_PSRAD128);
def_builtin (MASK_SSE2, "__builtin_ia32_pmaddwd128", v4si_ftype_v8hi_v8hi, IX86_BUILTIN_PMADDWD128);
def_builtin (MASK_SSE3, "__builtin_ia32_mwait",
void_ftype_unsigned_unsigned,
IX86_BUILTIN_MWAIT);
- def_builtin (MASK_SSE3, "__builtin_ia32_movshdup",
- v4sf_ftype_v4sf,
- IX86_BUILTIN_MOVSHDUP);
- def_builtin (MASK_SSE3, "__builtin_ia32_movsldup",
- v4sf_ftype_v4sf,
- IX86_BUILTIN_MOVSLDUP);
def_builtin (MASK_SSE3, "__builtin_ia32_lddqu",
v16qi_ftype_pcchar, IX86_BUILTIN_LDDQU);
def_builtin (MASK_SSSE3, "__builtin_ia32_palignr", di_ftype_di_di_int,
IX86_BUILTIN_PALIGNR);
+ /* AMDFAM10 SSE4A New built-ins */
+ def_builtin (MASK_SSE4A, "__builtin_ia32_movntsd",
+ void_ftype_pdouble_v2df, IX86_BUILTIN_MOVNTSD);
+ def_builtin (MASK_SSE4A, "__builtin_ia32_movntss",
+ void_ftype_pfloat_v4sf, IX86_BUILTIN_MOVNTSS);
+ def_builtin (MASK_SSE4A, "__builtin_ia32_extrqi",
+ v2di_ftype_v2di_unsigned_unsigned, IX86_BUILTIN_EXTRQI);
+ def_builtin (MASK_SSE4A, "__builtin_ia32_extrq",
+ v2di_ftype_v2di_v16qi, IX86_BUILTIN_EXTRQ);
+ def_builtin (MASK_SSE4A, "__builtin_ia32_insertqi",
+ v2di_ftype_v2di_v2di_unsigned_unsigned, IX86_BUILTIN_INSERTQI);
+ def_builtin (MASK_SSE4A, "__builtin_ia32_insertq",
+ v2di_ftype_v2di_v2di, IX86_BUILTIN_INSERTQ);
+
/* Access to the vec_init patterns. */
ftype = build_function_type_list (V2SI_type_node, integer_type_node,
integer_type_node, NULL_TREE);
ftype, IX86_BUILTIN_VEC_SET_V4HI);
}
+static void
+ix86_init_builtins (void)
+{
+ if (TARGET_MMX)
+ ix86_init_mmx_sse_builtins ();
+}
+
/* Errors in the source file can cause expand_expr to return const0_rtx
where we expect a vector. To avoid crashing, use one of the vector
clear instructions. */
/* Subroutine of ix86_expand_builtin to take care of binop insns. */
static rtx
-ix86_expand_binop_builtin (enum insn_code icode, tree arglist, rtx target)
+ix86_expand_binop_builtin (enum insn_code icode, tree exp, rtx target)
{
rtx pat, xops[3];
- tree arg0 = TREE_VALUE (arglist);
- tree arg1 = TREE_VALUE (TREE_CHAIN (arglist));
+ tree arg0 = CALL_EXPR_ARG (exp, 0);
+ tree arg1 = CALL_EXPR_ARG (exp, 1);
rtx op0 = expand_normal (arg0);
rtx op1 = expand_normal (arg1);
enum machine_mode tmode = insn_data[icode].operand[0].mode;
/* Subroutine of ix86_expand_builtin to take care of stores. */
static rtx
-ix86_expand_store_builtin (enum insn_code icode, tree arglist)
+ix86_expand_store_builtin (enum insn_code icode, tree exp)
{
rtx pat;
- tree arg0 = TREE_VALUE (arglist);
- tree arg1 = TREE_VALUE (TREE_CHAIN (arglist));
+ tree arg0 = CALL_EXPR_ARG (exp, 0);
+ tree arg1 = CALL_EXPR_ARG (exp, 1);
rtx op0 = expand_normal (arg0);
rtx op1 = expand_normal (arg1);
enum machine_mode mode0 = insn_data[icode].operand[0].mode;
/* Subroutine of ix86_expand_builtin to take care of unop insns. */
static rtx
-ix86_expand_unop_builtin (enum insn_code icode, tree arglist,
+ix86_expand_unop_builtin (enum insn_code icode, tree exp,
rtx target, int do_load)
{
rtx pat;
- tree arg0 = TREE_VALUE (arglist);
+ tree arg0 = CALL_EXPR_ARG (exp, 0);
rtx op0 = expand_normal (arg0);
enum machine_mode tmode = insn_data[icode].operand[0].mode;
enum machine_mode mode0 = insn_data[icode].operand[1].mode;
sqrtss, rsqrtss, rcpss. */
static rtx
-ix86_expand_unop1_builtin (enum insn_code icode, tree arglist, rtx target)
+ix86_expand_unop1_builtin (enum insn_code icode, tree exp, rtx target)
{
rtx pat;
- tree arg0 = TREE_VALUE (arglist);
+ tree arg0 = CALL_EXPR_ARG (exp, 0);
rtx op1, op0 = expand_normal (arg0);
enum machine_mode tmode = insn_data[icode].operand[0].mode;
enum machine_mode mode0 = insn_data[icode].operand[1].mode;
/* Subroutine of ix86_expand_builtin to take care of comparison insns. */
static rtx
-ix86_expand_sse_compare (const struct builtin_description *d, tree arglist,
+ix86_expand_sse_compare (const struct builtin_description *d, tree exp,
rtx target)
{
rtx pat;
- tree arg0 = TREE_VALUE (arglist);
- tree arg1 = TREE_VALUE (TREE_CHAIN (arglist));
+ tree arg0 = CALL_EXPR_ARG (exp, 0);
+ tree arg1 = CALL_EXPR_ARG (exp, 1);
rtx op0 = expand_normal (arg0);
rtx op1 = expand_normal (arg1);
rtx op2;
/* Subroutine of ix86_expand_builtin to take care of comi insns. */
static rtx
-ix86_expand_sse_comi (const struct builtin_description *d, tree arglist,
+ix86_expand_sse_comi (const struct builtin_description *d, tree exp,
rtx target)
{
rtx pat;
- tree arg0 = TREE_VALUE (arglist);
- tree arg1 = TREE_VALUE (TREE_CHAIN (arglist));
+ tree arg0 = CALL_EXPR_ARG (exp, 0);
+ tree arg1 = CALL_EXPR_ARG (exp, 1);
rtx op0 = expand_normal (arg0);
rtx op1 = expand_normal (arg1);
rtx op2;
these sorts of instructions. */
static rtx
-ix86_expand_vec_init_builtin (tree type, tree arglist, rtx target)
+ix86_expand_vec_init_builtin (tree type, tree exp, rtx target)
{
enum machine_mode tmode = TYPE_MODE (type);
enum machine_mode inner_mode = GET_MODE_INNER (tmode);
rtvec v = rtvec_alloc (n_elt);
gcc_assert (VECTOR_MODE_P (tmode));
+ gcc_assert (call_expr_nargs (exp) == n_elt);
- for (i = 0; i < n_elt; ++i, arglist = TREE_CHAIN (arglist))
+ for (i = 0; i < n_elt; ++i)
{
- rtx x = expand_normal (TREE_VALUE (arglist));
+ rtx x = expand_normal (CALL_EXPR_ARG (exp, i));
RTVEC_ELT (v, i) = gen_lowpart (inner_mode, x);
}
- gcc_assert (arglist == NULL);
-
if (!target || !register_operand (target, tmode))
target = gen_reg_rtx (tmode);
had a language-level syntax for referencing vector elements. */
static rtx
-ix86_expand_vec_ext_builtin (tree arglist, rtx target)
+ix86_expand_vec_ext_builtin (tree exp, rtx target)
{
enum machine_mode tmode, mode0;
tree arg0, arg1;
int elt;
rtx op0;
- arg0 = TREE_VALUE (arglist);
- arg1 = TREE_VALUE (TREE_CHAIN (arglist));
+ arg0 = CALL_EXPR_ARG (exp, 0);
+ arg1 = CALL_EXPR_ARG (exp, 1);
op0 = expand_normal (arg0);
elt = get_element_number (TREE_TYPE (arg0), arg1);
a language-level syntax for referencing vector elements. */
static rtx
-ix86_expand_vec_set_builtin (tree arglist)
+ix86_expand_vec_set_builtin (tree exp)
{
enum machine_mode tmode, mode1;
tree arg0, arg1, arg2;
int elt;
- rtx op0, op1;
+ rtx op0, op1, target;
- arg0 = TREE_VALUE (arglist);
- arg1 = TREE_VALUE (TREE_CHAIN (arglist));
- arg2 = TREE_VALUE (TREE_CHAIN (TREE_CHAIN (arglist)));
+ arg0 = CALL_EXPR_ARG (exp, 0);
+ arg1 = CALL_EXPR_ARG (exp, 1);
+ arg2 = CALL_EXPR_ARG (exp, 2);
tmode = TYPE_MODE (TREE_TYPE (arg0));
mode1 = TYPE_MODE (TREE_TYPE (TREE_TYPE (arg0)));
op0 = force_reg (tmode, op0);
op1 = force_reg (mode1, op1);
- ix86_expand_vector_set (true, op0, op1, elt);
+ /* OP0 is the source of these builtin functions and shouldn't be
+ modified. Create a copy, use it and return it as target. */
+ target = gen_reg_rtx (tmode);
+ emit_move_insn (target, op0);
+ ix86_expand_vector_set (true, target, op1, elt);
- return op0;
+ return target;
}
/* Expand an expression EXP that calls a built-in function,
const struct builtin_description *d;
size_t i;
enum insn_code icode;
- tree fndecl = TREE_OPERAND (TREE_OPERAND (exp, 0), 0);
- tree arglist = TREE_OPERAND (exp, 1);
- tree arg0, arg1, arg2;
- rtx op0, op1, op2, pat;
- enum machine_mode tmode, mode0, mode1, mode2, mode3;
+ tree fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0);
+ tree arg0, arg1, arg2, arg3;
+ rtx op0, op1, op2, op3, pat;
+ enum machine_mode tmode, mode0, mode1, mode2, mode3, mode4;
unsigned int fcode = DECL_FUNCTION_CODE (fndecl);
switch (fcode)
? CODE_FOR_mmx_maskmovq
: CODE_FOR_sse2_maskmovdqu);
/* Note the arg order is different from the operand order. */
- arg1 = TREE_VALUE (arglist);
- arg2 = TREE_VALUE (TREE_CHAIN (arglist));
- arg0 = TREE_VALUE (TREE_CHAIN (TREE_CHAIN (arglist)));
+ arg1 = CALL_EXPR_ARG (exp, 0);
+ arg2 = CALL_EXPR_ARG (exp, 1);
+ arg0 = CALL_EXPR_ARG (exp, 2);
op0 = expand_normal (arg0);
op1 = expand_normal (arg1);
op2 = expand_normal (arg2);
return 0;
case IX86_BUILTIN_SQRTSS:
- return ix86_expand_unop1_builtin (CODE_FOR_sse_vmsqrtv4sf2, arglist, target);
+ return ix86_expand_unop1_builtin (CODE_FOR_sse_vmsqrtv4sf2, exp, target);
case IX86_BUILTIN_RSQRTSS:
- return ix86_expand_unop1_builtin (CODE_FOR_sse_vmrsqrtv4sf2, arglist, target);
+ return ix86_expand_unop1_builtin (CODE_FOR_sse_vmrsqrtv4sf2, exp, target);
case IX86_BUILTIN_RCPSS:
- return ix86_expand_unop1_builtin (CODE_FOR_sse_vmrcpv4sf2, arglist, target);
+ return ix86_expand_unop1_builtin (CODE_FOR_sse_vmrcpv4sf2, exp, target);
case IX86_BUILTIN_LOADUPS:
- return ix86_expand_unop_builtin (CODE_FOR_sse_movups, arglist, target, 1);
+ return ix86_expand_unop_builtin (CODE_FOR_sse_movups, exp, target, 1);
case IX86_BUILTIN_STOREUPS:
- return ix86_expand_store_builtin (CODE_FOR_sse_movups, arglist);
+ return ix86_expand_store_builtin (CODE_FOR_sse_movups, exp);
case IX86_BUILTIN_LOADHPS:
case IX86_BUILTIN_LOADLPS:
: fcode == IX86_BUILTIN_LOADLPS ? CODE_FOR_sse_loadlps
: fcode == IX86_BUILTIN_LOADHPD ? CODE_FOR_sse2_loadhpd
: CODE_FOR_sse2_loadlpd);
- arg0 = TREE_VALUE (arglist);
- arg1 = TREE_VALUE (TREE_CHAIN (arglist));
+ arg0 = CALL_EXPR_ARG (exp, 0);
+ arg1 = CALL_EXPR_ARG (exp, 1);
op0 = expand_normal (arg0);
op1 = expand_normal (arg1);
tmode = insn_data[icode].operand[0].mode;
case IX86_BUILTIN_STORELPS:
icode = (fcode == IX86_BUILTIN_STOREHPS ? CODE_FOR_sse_storehps
: CODE_FOR_sse_storelps);
- arg0 = TREE_VALUE (arglist);
- arg1 = TREE_VALUE (TREE_CHAIN (arglist));
+ arg0 = CALL_EXPR_ARG (exp, 0);
+ arg1 = CALL_EXPR_ARG (exp, 1);
op0 = expand_normal (arg0);
op1 = expand_normal (arg1);
mode0 = insn_data[icode].operand[0].mode;
return const0_rtx;
case IX86_BUILTIN_MOVNTPS:
- return ix86_expand_store_builtin (CODE_FOR_sse_movntv4sf, arglist);
+ return ix86_expand_store_builtin (CODE_FOR_sse_movntv4sf, exp);
case IX86_BUILTIN_MOVNTQ:
- return ix86_expand_store_builtin (CODE_FOR_sse_movntdi, arglist);
+ return ix86_expand_store_builtin (CODE_FOR_sse_movntdi, exp);
case IX86_BUILTIN_LDMXCSR:
- op0 = expand_normal (TREE_VALUE (arglist));
+ op0 = expand_normal (CALL_EXPR_ARG (exp, 0));
target = assign_386_stack_local (SImode, SLOT_TEMP);
emit_move_insn (target, op0);
emit_insn (gen_sse_ldmxcsr (target));
icode = (fcode == IX86_BUILTIN_SHUFPS
? CODE_FOR_sse_shufps
: CODE_FOR_sse2_shufpd);
- arg0 = TREE_VALUE (arglist);
- arg1 = TREE_VALUE (TREE_CHAIN (arglist));
- arg2 = TREE_VALUE (TREE_CHAIN (TREE_CHAIN (arglist)));
+ arg0 = CALL_EXPR_ARG (exp, 0);
+ arg1 = CALL_EXPR_ARG (exp, 1);
+ arg2 = CALL_EXPR_ARG (exp, 2);
op0 = expand_normal (arg0);
op1 = expand_normal (arg1);
op2 = expand_normal (arg2);
: fcode == IX86_BUILTIN_PSHUFLW ? CODE_FOR_sse2_pshuflw
: fcode == IX86_BUILTIN_PSHUFD ? CODE_FOR_sse2_pshufd
: CODE_FOR_mmx_pshufw);
- arg0 = TREE_VALUE (arglist);
- arg1 = TREE_VALUE (TREE_CHAIN (arglist));
+ arg0 = CALL_EXPR_ARG (exp, 0);
+ arg1 = CALL_EXPR_ARG (exp, 1);
op0 = expand_normal (arg0);
op1 = expand_normal (arg1);
tmode = insn_data[icode].operand[0].mode;
emit_insn (pat);
return target;
+ case IX86_BUILTIN_PSLLWI128:
+ icode = CODE_FOR_ashlv8hi3;
+ goto do_pshifti;
+ case IX86_BUILTIN_PSLLDI128:
+ icode = CODE_FOR_ashlv4si3;
+ goto do_pshifti;
+ case IX86_BUILTIN_PSLLQI128:
+ icode = CODE_FOR_ashlv2di3;
+ goto do_pshifti;
+ case IX86_BUILTIN_PSRAWI128:
+ icode = CODE_FOR_ashrv8hi3;
+ goto do_pshifti;
+ case IX86_BUILTIN_PSRADI128:
+ icode = CODE_FOR_ashrv4si3;
+ goto do_pshifti;
+ case IX86_BUILTIN_PSRLWI128:
+ icode = CODE_FOR_lshrv8hi3;
+ goto do_pshifti;
+ case IX86_BUILTIN_PSRLDI128:
+ icode = CODE_FOR_lshrv4si3;
+ goto do_pshifti;
+ case IX86_BUILTIN_PSRLQI128:
+ icode = CODE_FOR_lshrv2di3;
+ goto do_pshifti;
+ do_pshifti:
+ arg0 = CALL_EXPR_ARG (exp, 0);
+ arg1 = CALL_EXPR_ARG (exp, 1);
+ op0 = expand_normal (arg0);
+ op1 = expand_normal (arg1);
+
+ if (!CONST_INT_P (op1))
+ {
+ error ("shift must be an immediate");
+ return const0_rtx;
+ }
+ if (INTVAL (op1) < 0 || INTVAL (op1) > 255)
+ op1 = GEN_INT (255);
+
+ tmode = insn_data[icode].operand[0].mode;
+ mode1 = insn_data[icode].operand[1].mode;
+ if (! (*insn_data[icode].operand[1].predicate) (op0, mode1))
+ op0 = copy_to_reg (op0);
+
+ target = gen_reg_rtx (tmode);
+ pat = GEN_FCN (icode) (target, op0, op1);
+ if (!pat)
+ return 0;
+ emit_insn (pat);
+ return target;
+
+ case IX86_BUILTIN_PSLLW128:
+ icode = CODE_FOR_ashlv8hi3;
+ goto do_pshift;
+ case IX86_BUILTIN_PSLLD128:
+ icode = CODE_FOR_ashlv4si3;
+ goto do_pshift;
+ case IX86_BUILTIN_PSLLQ128:
+ icode = CODE_FOR_ashlv2di3;
+ goto do_pshift;
+ case IX86_BUILTIN_PSRAW128:
+ icode = CODE_FOR_ashrv8hi3;
+ goto do_pshift;
+ case IX86_BUILTIN_PSRAD128:
+ icode = CODE_FOR_ashrv4si3;
+ goto do_pshift;
+ case IX86_BUILTIN_PSRLW128:
+ icode = CODE_FOR_lshrv8hi3;
+ goto do_pshift;
+ case IX86_BUILTIN_PSRLD128:
+ icode = CODE_FOR_lshrv4si3;
+ goto do_pshift;
+ case IX86_BUILTIN_PSRLQ128:
+ icode = CODE_FOR_lshrv2di3;
+ goto do_pshift;
+ do_pshift:
+ arg0 = CALL_EXPR_ARG (exp, 0);
+ arg1 = CALL_EXPR_ARG (exp, 1);
+ op0 = expand_normal (arg0);
+ op1 = expand_normal (arg1);
+
+ tmode = insn_data[icode].operand[0].mode;
+ mode1 = insn_data[icode].operand[1].mode;
+
+ if (! (*insn_data[icode].operand[1].predicate) (op0, mode1))
+ op0 = copy_to_reg (op0);
+
+ op1 = simplify_gen_subreg (TImode, op1, GET_MODE (op1), 0);
+ if (! (*insn_data[icode].operand[2].predicate) (op1, TImode))
+ op1 = copy_to_reg (op1);
+
+ target = gen_reg_rtx (tmode);
+ pat = GEN_FCN (icode) (target, op0, op1);
+ if (!pat)
+ return 0;
+ emit_insn (pat);
+ return target;
+
case IX86_BUILTIN_PSLLDQI128:
case IX86_BUILTIN_PSRLDQI128:
- icode = ( fcode == IX86_BUILTIN_PSLLDQI128 ? CODE_FOR_sse2_ashlti3
+ icode = (fcode == IX86_BUILTIN_PSLLDQI128 ? CODE_FOR_sse2_ashlti3
: CODE_FOR_sse2_lshrti3);
- arg0 = TREE_VALUE (arglist);
- arg1 = TREE_VALUE (TREE_CHAIN (arglist));
+ arg0 = CALL_EXPR_ARG (exp, 0);
+ arg1 = CALL_EXPR_ARG (exp, 1);
op0 = expand_normal (arg0);
op1 = expand_normal (arg1);
tmode = insn_data[icode].operand[0].mode;
return const0_rtx;
}
target = gen_reg_rtx (V2DImode);
- pat = GEN_FCN (icode) (simplify_gen_subreg (tmode, target, V2DImode, 0), op0, op1);
+ pat = GEN_FCN (icode) (simplify_gen_subreg (tmode, target, V2DImode, 0),
+ op0, op1);
if (! pat)
return 0;
emit_insn (pat);
return NULL_RTX;
case IX86_BUILTIN_PAVGUSB:
- return ix86_expand_binop_builtin (CODE_FOR_mmx_uavgv8qi3, arglist, target);
+ return ix86_expand_binop_builtin (CODE_FOR_mmx_uavgv8qi3, exp, target);
case IX86_BUILTIN_PF2ID:
- return ix86_expand_unop_builtin (CODE_FOR_mmx_pf2id, arglist, target, 0);
+ return ix86_expand_unop_builtin (CODE_FOR_mmx_pf2id, exp, target, 0);
case IX86_BUILTIN_PFACC:
- return ix86_expand_binop_builtin (CODE_FOR_mmx_haddv2sf3, arglist, target);
+ return ix86_expand_binop_builtin (CODE_FOR_mmx_haddv2sf3, exp, target);
case IX86_BUILTIN_PFADD:
- return ix86_expand_binop_builtin (CODE_FOR_mmx_addv2sf3, arglist, target);
+ return ix86_expand_binop_builtin (CODE_FOR_mmx_addv2sf3, exp, target);
case IX86_BUILTIN_PFCMPEQ:
- return ix86_expand_binop_builtin (CODE_FOR_mmx_eqv2sf3, arglist, target);
+ return ix86_expand_binop_builtin (CODE_FOR_mmx_eqv2sf3, exp, target);
case IX86_BUILTIN_PFCMPGE:
- return ix86_expand_binop_builtin (CODE_FOR_mmx_gev2sf3, arglist, target);
+ return ix86_expand_binop_builtin (CODE_FOR_mmx_gev2sf3, exp, target);
case IX86_BUILTIN_PFCMPGT:
- return ix86_expand_binop_builtin (CODE_FOR_mmx_gtv2sf3, arglist, target);
+ return ix86_expand_binop_builtin (CODE_FOR_mmx_gtv2sf3, exp, target);
case IX86_BUILTIN_PFMAX:
- return ix86_expand_binop_builtin (CODE_FOR_mmx_smaxv2sf3, arglist, target);
+ return ix86_expand_binop_builtin (CODE_FOR_mmx_smaxv2sf3, exp, target);
case IX86_BUILTIN_PFMIN:
- return ix86_expand_binop_builtin (CODE_FOR_mmx_sminv2sf3, arglist, target);
+ return ix86_expand_binop_builtin (CODE_FOR_mmx_sminv2sf3, exp, target);
case IX86_BUILTIN_PFMUL:
- return ix86_expand_binop_builtin (CODE_FOR_mmx_mulv2sf3, arglist, target);
+ return ix86_expand_binop_builtin (CODE_FOR_mmx_mulv2sf3, exp, target);
case IX86_BUILTIN_PFRCP:
- return ix86_expand_unop_builtin (CODE_FOR_mmx_rcpv2sf2, arglist, target, 0);
+ return ix86_expand_unop_builtin (CODE_FOR_mmx_rcpv2sf2, exp, target, 0);
case IX86_BUILTIN_PFRCPIT1:
- return ix86_expand_binop_builtin (CODE_FOR_mmx_rcpit1v2sf3, arglist, target);
+ return ix86_expand_binop_builtin (CODE_FOR_mmx_rcpit1v2sf3, exp, target);
case IX86_BUILTIN_PFRCPIT2:
- return ix86_expand_binop_builtin (CODE_FOR_mmx_rcpit2v2sf3, arglist, target);
+ return ix86_expand_binop_builtin (CODE_FOR_mmx_rcpit2v2sf3, exp, target);
case IX86_BUILTIN_PFRSQIT1:
- return ix86_expand_binop_builtin (CODE_FOR_mmx_rsqit1v2sf3, arglist, target);
+ return ix86_expand_binop_builtin (CODE_FOR_mmx_rsqit1v2sf3, exp, target);
case IX86_BUILTIN_PFRSQRT:
- return ix86_expand_unop_builtin (CODE_FOR_mmx_rsqrtv2sf2, arglist, target, 0);
+ return ix86_expand_unop_builtin (CODE_FOR_mmx_rsqrtv2sf2, exp, target, 0);
case IX86_BUILTIN_PFSUB:
- return ix86_expand_binop_builtin (CODE_FOR_mmx_subv2sf3, arglist, target);
+ return ix86_expand_binop_builtin (CODE_FOR_mmx_subv2sf3, exp, target);
case IX86_BUILTIN_PFSUBR:
- return ix86_expand_binop_builtin (CODE_FOR_mmx_subrv2sf3, arglist, target);
+ return ix86_expand_binop_builtin (CODE_FOR_mmx_subrv2sf3, exp, target);
case IX86_BUILTIN_PI2FD:
- return ix86_expand_unop_builtin (CODE_FOR_mmx_floatv2si2, arglist, target, 0);
+ return ix86_expand_unop_builtin (CODE_FOR_mmx_floatv2si2, exp, target, 0);
case IX86_BUILTIN_PMULHRW:
- return ix86_expand_binop_builtin (CODE_FOR_mmx_pmulhrwv4hi3, arglist, target);
+ return ix86_expand_binop_builtin (CODE_FOR_mmx_pmulhrwv4hi3, exp, target);
case IX86_BUILTIN_PF2IW:
- return ix86_expand_unop_builtin (CODE_FOR_mmx_pf2iw, arglist, target, 0);
+ return ix86_expand_unop_builtin (CODE_FOR_mmx_pf2iw, exp, target, 0);
case IX86_BUILTIN_PFNACC:
- return ix86_expand_binop_builtin (CODE_FOR_mmx_hsubv2sf3, arglist, target);
+ return ix86_expand_binop_builtin (CODE_FOR_mmx_hsubv2sf3, exp, target);
case IX86_BUILTIN_PFPNACC:
- return ix86_expand_binop_builtin (CODE_FOR_mmx_addsubv2sf3, arglist, target);
+ return ix86_expand_binop_builtin (CODE_FOR_mmx_addsubv2sf3, exp, target);
case IX86_BUILTIN_PI2FW:
- return ix86_expand_unop_builtin (CODE_FOR_mmx_pi2fw, arglist, target, 0);
+ return ix86_expand_unop_builtin (CODE_FOR_mmx_pi2fw, exp, target, 0);
case IX86_BUILTIN_PSWAPDSI:
- return ix86_expand_unop_builtin (CODE_FOR_mmx_pswapdv2si2, arglist, target, 0);
+ return ix86_expand_unop_builtin (CODE_FOR_mmx_pswapdv2si2, exp, target, 0);
case IX86_BUILTIN_PSWAPDSF:
- return ix86_expand_unop_builtin (CODE_FOR_mmx_pswapdv2sf2, arglist, target, 0);
+ return ix86_expand_unop_builtin (CODE_FOR_mmx_pswapdv2sf2, exp, target, 0);
case IX86_BUILTIN_SQRTSD:
- return ix86_expand_unop1_builtin (CODE_FOR_sse2_vmsqrtv2df2, arglist, target);
+ return ix86_expand_unop1_builtin (CODE_FOR_sse2_vmsqrtv2df2, exp, target);
case IX86_BUILTIN_LOADUPD:
- return ix86_expand_unop_builtin (CODE_FOR_sse2_movupd, arglist, target, 1);
+ return ix86_expand_unop_builtin (CODE_FOR_sse2_movupd, exp, target, 1);
case IX86_BUILTIN_STOREUPD:
- return ix86_expand_store_builtin (CODE_FOR_sse2_movupd, arglist);
+ return ix86_expand_store_builtin (CODE_FOR_sse2_movupd, exp);
case IX86_BUILTIN_MFENCE:
emit_insn (gen_sse2_mfence ());
return 0;
case IX86_BUILTIN_CLFLUSH:
- arg0 = TREE_VALUE (arglist);
+ arg0 = CALL_EXPR_ARG (exp, 0);
op0 = expand_normal (arg0);
icode = CODE_FOR_sse2_clflush;
if (! (*insn_data[icode].operand[0].predicate) (op0, Pmode))
return 0;
case IX86_BUILTIN_MOVNTPD:
- return ix86_expand_store_builtin (CODE_FOR_sse2_movntv2df, arglist);
+ return ix86_expand_store_builtin (CODE_FOR_sse2_movntv2df, exp);
case IX86_BUILTIN_MOVNTDQ:
- return ix86_expand_store_builtin (CODE_FOR_sse2_movntv2di, arglist);
+ return ix86_expand_store_builtin (CODE_FOR_sse2_movntv2di, exp);
case IX86_BUILTIN_MOVNTI:
- return ix86_expand_store_builtin (CODE_FOR_sse2_movntsi, arglist);
+ return ix86_expand_store_builtin (CODE_FOR_sse2_movntsi, exp);
case IX86_BUILTIN_LOADDQU:
- return ix86_expand_unop_builtin (CODE_FOR_sse2_movdqu, arglist, target, 1);
+ return ix86_expand_unop_builtin (CODE_FOR_sse2_movdqu, exp, target, 1);
case IX86_BUILTIN_STOREDQU:
- return ix86_expand_store_builtin (CODE_FOR_sse2_movdqu, arglist);
+ return ix86_expand_store_builtin (CODE_FOR_sse2_movdqu, exp);
case IX86_BUILTIN_MONITOR:
- arg0 = TREE_VALUE (arglist);
- arg1 = TREE_VALUE (TREE_CHAIN (arglist));
- arg2 = TREE_VALUE (TREE_CHAIN (TREE_CHAIN (arglist)));
+ arg0 = CALL_EXPR_ARG (exp, 0);
+ arg1 = CALL_EXPR_ARG (exp, 1);
+ arg2 = CALL_EXPR_ARG (exp, 2);
op0 = expand_normal (arg0);
op1 = expand_normal (arg1);
op2 = expand_normal (arg2);
return 0;
case IX86_BUILTIN_MWAIT:
- arg0 = TREE_VALUE (arglist);
- arg1 = TREE_VALUE (TREE_CHAIN (arglist));
+ arg0 = CALL_EXPR_ARG (exp, 0);
+ arg1 = CALL_EXPR_ARG (exp, 1);
op0 = expand_normal (arg0);
op1 = expand_normal (arg1);
if (!REG_P (op0))
return 0;
case IX86_BUILTIN_LDDQU:
- return ix86_expand_unop_builtin (CODE_FOR_sse3_lddqu, arglist,
+ return ix86_expand_unop_builtin (CODE_FOR_sse3_lddqu, exp,
target, 1);
case IX86_BUILTIN_PALIGNR:
icode = CODE_FOR_ssse3_palignrti;
mode = V2DImode;
}
- arg0 = TREE_VALUE (arglist);
- arg1 = TREE_VALUE (TREE_CHAIN (arglist));
- arg2 = TREE_VALUE (TREE_CHAIN (TREE_CHAIN (arglist)));
+ arg0 = CALL_EXPR_ARG (exp, 0);
+ arg1 = CALL_EXPR_ARG (exp, 1);
+ arg2 = CALL_EXPR_ARG (exp, 2);
op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0);
op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0);
op2 = expand_expr (arg2, NULL_RTX, VOIDmode, 0);
emit_insn (pat);
return target;
+ case IX86_BUILTIN_MOVNTSD:
+ return ix86_expand_store_builtin (CODE_FOR_sse4a_vmmovntv2df, exp);
+
+ case IX86_BUILTIN_MOVNTSS:
+ return ix86_expand_store_builtin (CODE_FOR_sse4a_vmmovntv4sf, exp);
+
+ case IX86_BUILTIN_INSERTQ:
+ case IX86_BUILTIN_EXTRQ:
+ icode = (fcode == IX86_BUILTIN_EXTRQ
+ ? CODE_FOR_sse4a_extrq
+ : CODE_FOR_sse4a_insertq);
+ arg0 = CALL_EXPR_ARG (exp, 0);
+ arg1 = CALL_EXPR_ARG (exp, 1);
+ op0 = expand_normal (arg0);
+ op1 = expand_normal (arg1);
+ tmode = insn_data[icode].operand[0].mode;
+ mode1 = insn_data[icode].operand[1].mode;
+ mode2 = insn_data[icode].operand[2].mode;
+ if (! (*insn_data[icode].operand[1].predicate) (op0, mode1))
+ op0 = copy_to_mode_reg (mode1, op0);
+ if (! (*insn_data[icode].operand[2].predicate) (op1, mode2))
+ op1 = copy_to_mode_reg (mode2, op1);
+ if (optimize || target == 0
+ || GET_MODE (target) != tmode
+ || ! (*insn_data[icode].operand[0].predicate) (target, tmode))
+ target = gen_reg_rtx (tmode);
+ pat = GEN_FCN (icode) (target, op0, op1);
+ if (! pat)
+ return NULL_RTX;
+ emit_insn (pat);
+ return target;
+
+ case IX86_BUILTIN_EXTRQI:
+ icode = CODE_FOR_sse4a_extrqi;
+ arg0 = CALL_EXPR_ARG (exp, 0);
+ arg1 = CALL_EXPR_ARG (exp, 1);
+ arg2 = CALL_EXPR_ARG (exp, 2);
+ op0 = expand_normal (arg0);
+ op1 = expand_normal (arg1);
+ op2 = expand_normal (arg2);
+ tmode = insn_data[icode].operand[0].mode;
+ mode1 = insn_data[icode].operand[1].mode;
+ mode2 = insn_data[icode].operand[2].mode;
+ mode3 = insn_data[icode].operand[3].mode;
+ if (! (*insn_data[icode].operand[1].predicate) (op0, mode1))
+ op0 = copy_to_mode_reg (mode1, op0);
+ if (! (*insn_data[icode].operand[2].predicate) (op1, mode2))
+ {
+ error ("index mask must be an immediate");
+ return gen_reg_rtx (tmode);
+ }
+ if (! (*insn_data[icode].operand[3].predicate) (op2, mode3))
+ {
+ error ("length mask must be an immediate");
+ return gen_reg_rtx (tmode);
+ }
+ if (optimize || target == 0
+ || GET_MODE (target) != tmode
+ || ! (*insn_data[icode].operand[0].predicate) (target, tmode))
+ target = gen_reg_rtx (tmode);
+ pat = GEN_FCN (icode) (target, op0, op1, op2);
+ if (! pat)
+ return NULL_RTX;
+ emit_insn (pat);
+ return target;
+
+ case IX86_BUILTIN_INSERTQI:
+ icode = CODE_FOR_sse4a_insertqi;
+ arg0 = CALL_EXPR_ARG (exp, 0);
+ arg1 = CALL_EXPR_ARG (exp, 1);
+ arg2 = CALL_EXPR_ARG (exp, 2);
+ arg3 = CALL_EXPR_ARG (exp, 3);
+ op0 = expand_normal (arg0);
+ op1 = expand_normal (arg1);
+ op2 = expand_normal (arg2);
+ op3 = expand_normal (arg3);
+ tmode = insn_data[icode].operand[0].mode;
+ mode1 = insn_data[icode].operand[1].mode;
+ mode2 = insn_data[icode].operand[2].mode;
+ mode3 = insn_data[icode].operand[3].mode;
+ mode4 = insn_data[icode].operand[4].mode;
+
+ if (! (*insn_data[icode].operand[1].predicate) (op0, mode1))
+ op0 = copy_to_mode_reg (mode1, op0);
+
+ if (! (*insn_data[icode].operand[2].predicate) (op1, mode2))
+ op1 = copy_to_mode_reg (mode2, op1);
+
+ if (! (*insn_data[icode].operand[3].predicate) (op2, mode3))
+ {
+ error ("index mask must be an immediate");
+ return gen_reg_rtx (tmode);
+ }
+ if (! (*insn_data[icode].operand[4].predicate) (op3, mode4))
+ {
+ error ("length mask must be an immediate");
+ return gen_reg_rtx (tmode);
+ }
+ if (optimize || target == 0
+ || GET_MODE (target) != tmode
+ || ! (*insn_data[icode].operand[0].predicate) (target, tmode))
+ target = gen_reg_rtx (tmode);
+ pat = GEN_FCN (icode) (target, op0, op1, op2, op3);
+ if (! pat)
+ return NULL_RTX;
+ emit_insn (pat);
+ return target;
+
case IX86_BUILTIN_VEC_INIT_V2SI:
case IX86_BUILTIN_VEC_INIT_V4HI:
case IX86_BUILTIN_VEC_INIT_V8QI:
- return ix86_expand_vec_init_builtin (TREE_TYPE (exp), arglist, target);
+ return ix86_expand_vec_init_builtin (TREE_TYPE (exp), exp, target);
case IX86_BUILTIN_VEC_EXT_V2DF:
case IX86_BUILTIN_VEC_EXT_V2DI:
case IX86_BUILTIN_VEC_EXT_V8HI:
case IX86_BUILTIN_VEC_EXT_V2SI:
case IX86_BUILTIN_VEC_EXT_V4HI:
- return ix86_expand_vec_ext_builtin (arglist, target);
+ return ix86_expand_vec_ext_builtin (exp, target);
case IX86_BUILTIN_VEC_SET_V8HI:
case IX86_BUILTIN_VEC_SET_V4HI:
- return ix86_expand_vec_set_builtin (arglist);
+ return ix86_expand_vec_set_builtin (exp);
default:
break;
|| d->icode == CODE_FOR_sse_vmmaskcmpv4sf3
|| d->icode == CODE_FOR_sse2_maskcmpv2df3
|| d->icode == CODE_FOR_sse2_vmmaskcmpv2df3)
- return ix86_expand_sse_compare (d, arglist, target);
+ return ix86_expand_sse_compare (d, exp, target);
- return ix86_expand_binop_builtin (d->icode, arglist, target);
+ return ix86_expand_binop_builtin (d->icode, exp, target);
}
for (i = 0, d = bdesc_1arg; i < ARRAY_SIZE (bdesc_1arg); i++, d++)
if (d->code == fcode)
- return ix86_expand_unop_builtin (d->icode, arglist, target, 0);
+ return ix86_expand_unop_builtin (d->icode, exp, target, 0);
for (i = 0, d = bdesc_comi; i < ARRAY_SIZE (bdesc_comi); i++, d++)
if (d->code == fcode)
- return ix86_expand_sse_comi (d, arglist, target);
+ return ix86_expand_sse_comi (d, exp, target);
gcc_unreachable ();
}
+/* Returns a function decl for a vectorized version of the builtin function
+ with builtin function code FN and the result vector type TYPE, or NULL_TREE
+ if it is not available. */
+
+static tree
+ix86_builtin_vectorized_function (enum built_in_function fn, tree type_out,
+ tree type_in)
+{
+ enum machine_mode in_mode, out_mode;
+ int in_n, out_n;
+
+ if (TREE_CODE (type_out) != VECTOR_TYPE
+ || TREE_CODE (type_in) != VECTOR_TYPE)
+ return NULL_TREE;
+
+ out_mode = TYPE_MODE (TREE_TYPE (type_out));
+ out_n = TYPE_VECTOR_SUBPARTS (type_out);
+ in_mode = TYPE_MODE (TREE_TYPE (type_in));
+ in_n = TYPE_VECTOR_SUBPARTS (type_in);
+
+ switch (fn)
+ {
+ case BUILT_IN_SQRT:
+ if (out_mode == DFmode && out_n == 2
+ && in_mode == DFmode && in_n == 2)
+ return ix86_builtins[IX86_BUILTIN_SQRTPD];
+ return NULL_TREE;
+
+ case BUILT_IN_SQRTF:
+ if (out_mode == SFmode && out_n == 4
+ && in_mode == SFmode && in_n == 4)
+ return ix86_builtins[IX86_BUILTIN_SQRTPS];
+ return NULL_TREE;
+
+ case BUILT_IN_LRINTF:
+ if (out_mode == SImode && out_n == 4
+ && in_mode == SFmode && in_n == 4)
+ return ix86_builtins[IX86_BUILTIN_CVTPS2DQ];
+ return NULL_TREE;
+
+ default:
+ ;
+ }
+
+ return NULL_TREE;
+}
+
+/* Returns a decl of a function that implements conversion of the
+ input vector of type TYPE, or NULL_TREE if it is not available. */
+
+static tree
+ix86_builtin_conversion (enum tree_code code, tree type)
+{
+ if (TREE_CODE (type) != VECTOR_TYPE)
+ return NULL_TREE;
+
+ switch (code)
+ {
+ case FLOAT_EXPR:
+ switch (TYPE_MODE (type))
+ {
+ case V4SImode:
+ return ix86_builtins[IX86_BUILTIN_CVTDQ2PS];
+ default:
+ return NULL_TREE;
+ }
+
+ case FIX_TRUNC_EXPR:
+ switch (TYPE_MODE (type))
+ {
+ case V4SFmode:
+ return ix86_builtins[IX86_BUILTIN_CVTTPS2DQ];
+ default:
+ return NULL_TREE;
+ }
+ default:
+ return NULL_TREE;
+
+ }
+}
+
/* Store OPERAND to the memory after reload is completed. This means
that we can't easily use assign_stack_local. */
rtx
if (TARGET_SSE_MATH && SSE_FLOAT_MODE_P (mode))
return MAYBE_SSE_CLASS_P (class) ? SSE_REGS : NO_REGS;
- if (TARGET_80387 && SCALAR_FLOAT_MODE_P (mode))
+ if (X87_FLOAT_MODE_P (mode))
{
if (class == FP_TOP_SSE_REGS)
return FP_TOP_REG;
/* If the target says that inter-unit moves are more expensive
than moving through memory, then don't generate them. */
- if (!TARGET_INTER_UNIT_MOVES && !optimize_size)
+ if (!TARGET_INTER_UNIT_MOVES)
return true;
/* Between SSE and general, we have moves no larger than word size. */
if (GET_MODE_SIZE (mode) > UNITS_PER_WORD)
return true;
-
- /* ??? For the cost of one register reformat penalty, we could use
- the same instructions to move SFmode and DFmode data, but the
- relevant move patterns don't support those alternatives. */
- if (mode == SFmode || mode == DFmode)
- return true;
}
return false;
/* If MODE2 is only appropriate for an SSE register, then tie with
any other mode acceptable to SSE registers. */
- if (GET_MODE_SIZE (mode2) >= 8
+ if (GET_MODE_SIZE (mode2) == 16
&& ix86_hard_regno_mode_ok (FIRST_SSE_REG, mode2))
- return ix86_hard_regno_mode_ok (FIRST_SSE_REG, mode1);
+ return (GET_MODE_SIZE (mode1) == 16
+ && ix86_hard_regno_mode_ok (FIRST_SSE_REG, mode1));
- /* If MODE2 is appropriate for an MMX (or SSE) register, then tie
+ /* If MODE2 is appropriate for an MMX register, then tie
with any other mode acceptable to MMX registers. */
if (GET_MODE_SIZE (mode2) == 8
&& ix86_hard_regno_mode_ok (FIRST_MMX_REG, mode2))
- return ix86_hard_regno_mode_ok (FIRST_MMX_REG, mode1);
+ return (GET_MODE_SIZE (mode1) == 8
+ && ix86_hard_regno_mode_ok (FIRST_MMX_REG, mode1));
return false;
}
return false;
case ASHIFT:
- if (GET_CODE (XEXP (x, 1)) == CONST_INT
+ if (CONST_INT_P (XEXP (x, 1))
&& (GET_MODE (XEXP (x, 0)) != DImode || TARGET_64BIT))
{
HOST_WIDE_INT value = INTVAL (XEXP (x, 1));
case ROTATERT:
if (!TARGET_64BIT && GET_MODE (XEXP (x, 0)) == DImode)
{
- if (GET_CODE (XEXP (x, 1)) == CONST_INT)
+ if (CONST_INT_P (XEXP (x, 1)))
{
if (INTVAL (XEXP (x, 1)) > 32)
*total = ix86_cost->shift_const + COSTS_N_INSNS (2);
}
else
{
- if (GET_CODE (XEXP (x, 1)) == CONST_INT)
+ if (CONST_INT_P (XEXP (x, 1)))
*total = ix86_cost->shift_const;
else
*total = ix86_cost->shift_var;
return false;
case MULT:
- if (FLOAT_MODE_P (mode))
+ if (SSE_FLOAT_MODE_P (mode) && TARGET_SSE_MATH)
+ {
+ /* ??? SSE scalar cost should be used here. */
+ *total = ix86_cost->fmul;
+ return false;
+ }
+ else if (X87_FLOAT_MODE_P (mode))
+ {
+ *total = ix86_cost->fmul;
+ return false;
+ }
+ else if (FLOAT_MODE_P (mode))
{
+ /* ??? SSE vector cost should be used here. */
*total = ix86_cost->fmul;
return false;
}
rtx op0 = XEXP (x, 0);
rtx op1 = XEXP (x, 1);
int nbits;
- if (GET_CODE (XEXP (x, 1)) == CONST_INT)
+ if (CONST_INT_P (XEXP (x, 1)))
{
unsigned HOST_WIDE_INT value = INTVAL (XEXP (x, 1));
for (nbits = 0; value != 0; value &= value - 1)
if (GET_CODE (op0) == GET_CODE (op1))
is_mulwiden = 1, op1 = XEXP (op1, 0);
- else if (GET_CODE (op1) == CONST_INT)
+ else if (CONST_INT_P (op1))
{
if (GET_CODE (op0) == SIGN_EXTEND)
is_mulwiden = trunc_int_for_mode (INTVAL (op1), inner_mode)
case UDIV:
case MOD:
case UMOD:
- if (FLOAT_MODE_P (mode))
+ if (SSE_FLOAT_MODE_P (mode) && TARGET_SSE_MATH)
+ /* ??? SSE cost should be used here. */
+ *total = ix86_cost->fdiv;
+ else if (X87_FLOAT_MODE_P (mode))
+ *total = ix86_cost->fdiv;
+ else if (FLOAT_MODE_P (mode))
+ /* ??? SSE vector cost should be used here. */
*total = ix86_cost->fdiv;
else
*total = ix86_cost->divide[MODE_INDEX (mode)];
return false;
case PLUS:
- if (FLOAT_MODE_P (mode))
- *total = ix86_cost->fadd;
- else if (GET_MODE_CLASS (mode) == MODE_INT
+ if (GET_MODE_CLASS (mode) == MODE_INT
&& GET_MODE_BITSIZE (mode) <= GET_MODE_BITSIZE (Pmode))
{
if (GET_CODE (XEXP (x, 0)) == PLUS
&& GET_CODE (XEXP (XEXP (x, 0), 0)) == MULT
- && GET_CODE (XEXP (XEXP (XEXP (x, 0), 0), 1)) == CONST_INT
+ && CONST_INT_P (XEXP (XEXP (XEXP (x, 0), 0), 1))
&& CONSTANT_P (XEXP (x, 1)))
{
HOST_WIDE_INT val = INTVAL (XEXP (XEXP (XEXP (x, 0), 0), 1));
}
}
else if (GET_CODE (XEXP (x, 0)) == MULT
- && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT)
+ && CONST_INT_P (XEXP (XEXP (x, 0), 1)))
{
HOST_WIDE_INT val = INTVAL (XEXP (XEXP (x, 0), 1));
if (val == 2 || val == 4 || val == 8)
/* FALLTHRU */
case MINUS:
- if (FLOAT_MODE_P (mode))
+ if (SSE_FLOAT_MODE_P (mode) && TARGET_SSE_MATH)
+ {
+ /* ??? SSE cost should be used here. */
+ *total = ix86_cost->fadd;
+ return false;
+ }
+ else if (X87_FLOAT_MODE_P (mode))
{
*total = ix86_cost->fadd;
return false;
}
+ else if (FLOAT_MODE_P (mode))
+ {
+ /* ??? SSE vector cost should be used here. */
+ *total = ix86_cost->fadd;
+ return false;
+ }
/* FALLTHRU */
case AND:
/* FALLTHRU */
case NEG:
- if (FLOAT_MODE_P (mode))
+ if (SSE_FLOAT_MODE_P (mode) && TARGET_SSE_MATH)
+ {
+ /* ??? SSE cost should be used here. */
+ *total = ix86_cost->fchs;
+ return false;
+ }
+ else if (X87_FLOAT_MODE_P (mode))
+ {
+ *total = ix86_cost->fchs;
+ return false;
+ }
+ else if (FLOAT_MODE_P (mode))
{
+ /* ??? SSE vector cost should be used here. */
*total = ix86_cost->fchs;
return false;
}
case COMPARE:
if (GET_CODE (XEXP (x, 0)) == ZERO_EXTRACT
&& XEXP (XEXP (x, 0), 1) == const1_rtx
- && GET_CODE (XEXP (XEXP (x, 0), 2)) == CONST_INT
+ && CONST_INT_P (XEXP (XEXP (x, 0), 2))
&& XEXP (x, 1) == const0_rtx)
{
/* This kind of construct is implemented using test[bwl].
return false;
case FLOAT_EXTEND:
- if (!TARGET_SSE_MATH
- || mode == XFmode
- || (mode == DFmode && !TARGET_SSE2))
- /* For standard 80387 constants, raise the cost to prevent
- compress_float_constant() to generate load from memory. */
- switch (standard_80387_constant_p (XEXP (x, 0)))
- {
- case -1:
- case 0:
- *total = 0;
- break;
- case 1: /* 0.0 */
- *total = 1;
- break;
- default:
- *total = (x86_ext_80387_constants & TUNEMASK
- || optimize_size
- ? 1 : 0);
- }
+ if (!(SSE_FLOAT_MODE_P (mode) && TARGET_SSE_MATH))
+ *total = 0;
return false;
case ABS:
- if (FLOAT_MODE_P (mode))
+ if (SSE_FLOAT_MODE_P (mode) && TARGET_SSE_MATH)
+ /* ??? SSE cost should be used here. */
+ *total = ix86_cost->fabs;
+ else if (X87_FLOAT_MODE_P (mode))
+ *total = ix86_cost->fabs;
+ else if (FLOAT_MODE_P (mode))
+ /* ??? SSE vector cost should be used here. */
*total = ix86_cost->fabs;
return false;
case SQRT:
- if (FLOAT_MODE_P (mode))
+ if (SSE_FLOAT_MODE_P (mode) && TARGET_SSE_MATH)
+ /* ??? SSE cost should be used here. */
+ *total = ix86_cost->fsqrt;
+ else if (X87_FLOAT_MODE_P (mode))
+ *total = ix86_cost->fsqrt;
+ else if (FLOAT_MODE_P (mode))
+ /* ??? SSE vector cost should be used here. */
*total = ix86_cost->fsqrt;
return false;
x86_this_parameter (tree function)
{
tree type = TREE_TYPE (function);
+ bool aggr = aggregate_value_p (TREE_TYPE (type), type) != 0;
if (TARGET_64BIT)
{
- int n = aggregate_value_p (TREE_TYPE (type), type) != 0;
- return gen_rtx_REG (DImode, x86_64_int_parameter_registers[n]);
+ const int *parm_regs;
+
+ if (TARGET_64BIT_MS_ABI)
+ parm_regs = x86_64_ms_abi_int_parameter_registers;
+ else
+ parm_regs = x86_64_int_parameter_registers;
+ return gen_rtx_REG (DImode, parm_regs[aggr]);
}
- if (ix86_function_regparm (type, function) > 0)
+ if (ix86_function_regparm (type, function) > 0
+ && !type_has_variadic_args_p (type))
{
- tree parm;
-
- parm = TYPE_ARG_TYPES (type);
- /* Figure out whether or not the function has a variable number of
- arguments. */
- for (; parm; parm = TREE_CHAIN (parm))
- if (TREE_VALUE (parm) == void_type_node)
- break;
- /* If not, the this parameter is in the first argument. */
- if (parm)
- {
- int regno = 0;
- if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (type)))
- regno = 2;
- return gen_rtx_REG (SImode, regno);
- }
+ int regno = 0;
+ if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (type)))
+ regno = 2;
+ return gen_rtx_REG (SImode, regno);
}
- if (aggregate_value_p (TREE_TYPE (type), type))
- return gen_rtx_MEM (SImode, plus_constant (stack_pointer_rtx, 8));
- else
- return gen_rtx_MEM (SImode, plus_constant (stack_pointer_rtx, 4));
+ return gen_rtx_MEM (SImode, plus_constant (stack_pointer_rtx, aggr ? 8 : 4));
}
/* Determine whether x86_output_mi_thunk can succeed. */
{
if (!x86_64_general_operand (xops[0], DImode))
{
- tmp = gen_rtx_REG (DImode, FIRST_REX_INT_REG + 2 /* R10 */);
+ tmp = gen_rtx_REG (DImode, R10_REG);
xops[1] = tmp;
output_asm_insn ("mov{q}\t{%1, %0|%0, %1}", xops);
xops[0] = tmp;
if (vcall_offset)
{
if (TARGET_64BIT)
- tmp = gen_rtx_REG (DImode, FIRST_REX_INT_REG + 2 /* R10 */);
+ tmp = gen_rtx_REG (DImode, R10_REG);
else
{
int tmp_regno = 2 /* ECX */;
if (lookup_attribute ("fastcall",
- TYPE_ATTRIBUTES (TREE_TYPE (function))))
+ TYPE_ATTRIBUTES (TREE_TYPE (function))))
tmp_regno = 0 /* EAX */;
tmp = gen_rtx_REG (SImode, tmp_regno);
}
xops[0] = gen_rtx_MEM (Pmode, plus_constant (tmp, vcall_offset));
if (TARGET_64BIT && !memory_operand (xops[0], Pmode))
{
- rtx tmp2 = gen_rtx_REG (DImode, FIRST_REX_INT_REG + 3 /* R11 */);
+ rtx tmp2 = gen_rtx_REG (DImode, R11_REG);
xops[0] = GEN_INT (vcall_offset);
xops[1] = tmp2;
output_asm_insn ("mov{q}\t{%0, %1|%1, %0}", xops);
{
if (!flag_pic || (*targetm.binds_local_p) (function))
output_asm_insn ("jmp\t%P0", xops);
+ /* All thunks should be in the same object as their target,
+ and thus binds_local_p should be true. */
+ else if (TARGET_64BIT_MS_ABI)
+ gcc_unreachable ();
else
{
tmp = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, xops[0]), UNSPEC_GOTPCREL);
x86_function_profiler (FILE *file, int labelno ATTRIBUTE_UNUSED)
{
if (TARGET_64BIT)
- if (flag_pic)
- {
+ {
#ifndef NO_PROFILE_COUNTERS
- fprintf (file, "\tleaq\t%sP%d@(%%rip),%%r11\n", LPREFIX, labelno);
+ fprintf (file, "\tleaq\t%sP%d@(%%rip),%%r11\n", LPREFIX, labelno);
#endif
+
+ if (!TARGET_64BIT_MS_ABI && flag_pic)
fprintf (file, "\tcall\t*%s@GOTPCREL(%%rip)\n", MCOUNT_NAME);
- }
- else
- {
-#ifndef NO_PROFILE_COUNTERS
- fprintf (file, "\tmovq\t$%sP%d,%%r11\n", LPREFIX, labelno);
-#endif
+ else
fprintf (file, "\tcall\t%s\n", MCOUNT_NAME);
- }
+ }
else if (flag_pic)
{
#ifndef NO_PROFILE_COUNTERS
if (GET_CODE (PATTERN (insn)) == UNSPEC_VOLATILE
&& XINT (PATTERN (insn), 1) == UNSPECV_ALIGN)
return 0;
- if (GET_CODE (insn) == JUMP_INSN
+ if (JUMP_P (insn)
&& (GET_CODE (PATTERN (insn)) == ADDR_VEC
|| GET_CODE (PATTERN (insn)) == ADDR_DIFF_VEC))
return 0;
/* Important case - calls are always 5 bytes.
It is common to have many calls in the row. */
- if (GET_CODE (insn) == CALL_INSN
+ if (CALL_P (insn)
&& symbolic_reference_mentioned_p (PATTERN (insn))
&& !SIBLING_CALL_P (insn))
return 5;
/* For normal instructions we may rely on the sizes of addresses
and the presence of symbol to require 4 bytes of encoding.
This is not the case for jumps where references are PC relative. */
- if (GET_CODE (insn) != JUMP_INSN)
+ if (!JUMP_P (insn))
{
l = get_attr_length_address (insn);
if (l < 4 && symbolic_reference_mentioned_p (PATTERN (insn)))
if (dump_file)
fprintf(dump_file, "Insn %i estimated to %i bytes\n",
INSN_UID (insn), min_insn_size (insn));
- if ((GET_CODE (insn) == JUMP_INSN
+ if ((JUMP_P (insn)
&& GET_CODE (PATTERN (insn)) != ADDR_VEC
&& GET_CODE (PATTERN (insn)) != ADDR_DIFF_VEC)
- || GET_CODE (insn) == CALL_INSN)
+ || CALL_P (insn))
njumps++;
else
continue;
while (njumps > 3)
{
start = NEXT_INSN (start);
- if ((GET_CODE (start) == JUMP_INSN
+ if ((JUMP_P (start)
&& GET_CODE (PATTERN (start)) != ADDR_VEC
&& GET_CODE (PATTERN (start)) != ADDR_DIFF_VEC)
- || GET_CODE (start) == CALL_INSN)
+ || CALL_P (start))
njumps--, isjump = 1;
else
isjump = 0;
rtx prev;
bool replace = false;
- if (GET_CODE (ret) != JUMP_INSN || GET_CODE (PATTERN (ret)) != RETURN
+ if (!JUMP_P (ret) || GET_CODE (PATTERN (ret)) != RETURN
|| !maybe_hot_bb_p (bb))
continue;
for (prev = PREV_INSN (ret); prev; prev = PREV_INSN (prev))
- if (active_insn_p (prev) || GET_CODE (prev) == CODE_LABEL)
+ if (active_insn_p (prev) || LABEL_P (prev))
break;
- if (prev && GET_CODE (prev) == CODE_LABEL)
+ if (prev && LABEL_P (prev))
{
edge e;
edge_iterator ei;
{
prev = prev_active_insn (ret);
if (prev
- && ((GET_CODE (prev) == JUMP_INSN && any_condjump_p (prev))
- || GET_CODE (prev) == CALL_INSN))
+ && ((JUMP_P (prev) && any_condjump_p (prev))
+ || CALL_P (prev)))
replace = true;
/* Empty functions get branch mispredict even when the jump destination
is not visible to us. */
mode = GET_MODE (out);
neglab = gen_label_rtx ();
donelab = gen_label_rtx ();
- i1 = gen_reg_rtx (Pmode);
f0 = gen_reg_rtx (mode);
- emit_cmp_and_jump_insns (in, const0_rtx, LT, const0_rtx, Pmode, 0, neglab);
+ emit_cmp_and_jump_insns (in, const0_rtx, LT, const0_rtx, inmode, 0, neglab);
+
+ expand_float (out, in, 0);
- emit_insn (gen_rtx_SET (VOIDmode, out, gen_rtx_FLOAT (mode, in)));
emit_jump_insn (gen_jump (donelab));
emit_barrier ();
emit_label (neglab);
- i0 = expand_simple_binop (Pmode, LSHIFTRT, in, const1_rtx, NULL, 1, OPTAB_DIRECT);
- i1 = expand_simple_binop (Pmode, AND, in, const1_rtx, NULL, 1, OPTAB_DIRECT);
- i0 = expand_simple_binop (Pmode, IOR, i0, i1, i0, 1, OPTAB_DIRECT);
+ i0 = expand_simple_binop (inmode, LSHIFTRT, in, const1_rtx, NULL,
+ 1, OPTAB_DIRECT);
+ i1 = expand_simple_binop (inmode, AND, in, const1_rtx, NULL,
+ 1, OPTAB_DIRECT);
+ i0 = expand_simple_binop (inmode, IOR, i0, i1, i0, 1, OPTAB_DIRECT);
+
expand_float (f0, i0, 0);
+
emit_insn (gen_rtx_SET (VOIDmode, out, gen_rtx_PLUS (mode, f0, f0)));
emit_label (donelab);
clobbers);
clobbers = tree_cons (NULL_TREE, build_string (4, "fpsr"),
clobbers);
- clobbers = tree_cons (NULL_TREE, build_string (7, "dirflag"),
- clobbers);
return clobbers;
}
-/* Return true if this goes in small data/bss. */
-
-static bool
-ix86_in_large_data_p (tree exp)
-{
- if (ix86_cmodel != CM_MEDIUM && ix86_cmodel != CM_MEDIUM_PIC)
- return false;
-
- /* Functions are never large data. */
- if (TREE_CODE (exp) == FUNCTION_DECL)
- return false;
-
- if (TREE_CODE (exp) == VAR_DECL && DECL_SECTION_NAME (exp))
- {
- const char *section = TREE_STRING_POINTER (DECL_SECTION_NAME (exp));
- if (strcmp (section, ".ldata") == 0
- || strcmp (section, ".lbss") == 0)
- return true;
- return false;
- }
- else
- {
- HOST_WIDE_INT size = int_size_in_bytes (TREE_TYPE (exp));
-
- /* If this is an incomplete type with size 0, then we can't put it
- in data because it might be too big when completed. */
- if (!size || size > ix86_section_threshold)
- return true;
- }
+/* Implements target vector targetm.asm.encode_section_info. This
+ is not used by netware. */
- return false;
-}
-static void
+static void ATTRIBUTE_UNUSED
ix86_encode_section_info (tree decl, rtx rtl, int first)
{
default_encode_section_info (decl, rtl, first);
const char *
output_387_reg_move (rtx insn, rtx *operands)
{
- if (REG_P (operands[1])
- && find_regno_note (insn, REG_DEAD, REGNO (operands[1])))
+ if (REG_P (operands[0]))
+ {
+ if (REG_P (operands[1])
+ && find_regno_note (insn, REG_DEAD, REGNO (operands[1])))
+ {
+ if (REGNO (operands[0]) == FIRST_STACK_REG)
+ return output_387_ffreep (operands, 0);
+ return "fstp\t%y0";
+ }
+ if (STACK_TOP_P (operands[0]))
+ return "fld%z1\t%y1";
+ return "fst\t%y0";
+ }
+ else if (MEM_P (operands[0]))
{
- if (REGNO (operands[0]) == FIRST_STACK_REG)
- return output_387_ffreep (operands, 0);
- return "fstp\t%y0";
+ gcc_assert (REG_P (operands[1]));
+ if (find_regno_note (insn, REG_DEAD, REGNO (operands[1])))
+ return "fstp%z0\t%y0";
+ else
+ {
+ /* There is no non-popping store to memory for XFmode.
+ So if we need one, follow the store with a load. */
+ if (GET_MODE (operands[0]) == XFmode)
+ return "fstp%z0\t%y0\n\tfld%z0\t%y0";
+ else
+ return "fst%z0\t%y0";
+ }
}
- if (STACK_TOP_P (operands[0]))
- return "fld%z1\t%y1";
- return "fst\t%y0";
+ else
+ gcc_unreachable();
}
/* Output code to perform a conditional jump to LABEL, if C2 flag in
emit_insn (gen_x86_fnstsw_1 (reg));
- if (TARGET_USE_SAHF)
+ if (TARGET_SAHF && (TARGET_USE_SAHF || optimize_size))
{
emit_insn (gen_x86_sahf_1 (reg));
gen_rtx_LABEL_REF (VOIDmode, label),
pc_rtx);
temp = gen_rtx_SET (VOIDmode, pc_rtx, temp);
+
emit_jump_insn (temp);
+ predict_jump (REG_BR_PROB_BASE * 10 / 100);
}
/* Output code to perform a log1p XFmode calculation. */
emit_jump_insn (gen_bge (label1));
emit_move_insn (tmp2, standard_80387_constant_rtx (4)); /* fldln2 */
- emit_insn (gen_fyl2xp1_xf3 (op0, tmp2, op1));
+ emit_insn (gen_fyl2xp1xf3_i387 (op0, op1, tmp2));
emit_jump (label2);
emit_label (label1);
emit_move_insn (tmp, CONST1_RTX (XFmode));
emit_insn (gen_addxf3 (tmp, op1, tmp));
emit_move_insn (tmp2, standard_80387_constant_rtx (4)); /* fldln2 */
- emit_insn (gen_fyl2x_xf3 (op0, tmp2, tmp));
+ emit_insn (gen_fyl2xxf3_i387 (op0, tmp, tmp2));
emit_label (label2);
}
/* Solaris implementation of TARGET_ASM_NAMED_SECTION. */
-static void
+static void ATTRIBUTE_UNUSED
i386_solaris_elf_named_section (const char *name, unsigned int flags,
tree decl)
{
emit_move_insn (operand0, res);
}
+\f
+/* Table of valid machine attributes. */
+static const struct attribute_spec ix86_attribute_table[] =
+{
+ /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */
+ /* Stdcall attribute says callee is responsible for popping arguments
+ if they are not variable. */
+ { "stdcall", 0, 0, false, true, true, ix86_handle_cconv_attribute },
+ /* Fastcall attribute says callee is responsible for popping arguments
+ if they are not variable. */
+ { "fastcall", 0, 0, false, true, true, ix86_handle_cconv_attribute },
+ /* Cdecl attribute says the callee is a normal C declaration */
+ { "cdecl", 0, 0, false, true, true, ix86_handle_cconv_attribute },
+ /* Regparm attribute specifies how many integer arguments are to be
+ passed in registers. */
+ { "regparm", 1, 1, false, true, true, ix86_handle_cconv_attribute },
+ /* Sseregparm attribute says we are using x86_64 calling conventions
+ for FP arguments. */
+ { "sseregparm", 0, 0, false, true, true, ix86_handle_cconv_attribute },
+ /* force_align_arg_pointer says this function realigns the stack at entry. */
+ { (const char *)&ix86_force_align_arg_pointer_string, 0, 0,
+ false, true, true, ix86_handle_cconv_attribute },
+#if TARGET_DLLIMPORT_DECL_ATTRIBUTES
+ { "dllimport", 0, 0, false, false, false, handle_dll_attribute },
+ { "dllexport", 0, 0, false, false, false, handle_dll_attribute },
+ { "shared", 0, 0, true, false, false, ix86_handle_shared_attribute },
+#endif
+ { "ms_struct", 0, 0, false, false, false, ix86_handle_struct_attribute },
+ { "gcc_struct", 0, 0, false, false, false, ix86_handle_struct_attribute },
+#ifdef SUBTARGET_ATTRIBUTE_TABLE
+ SUBTARGET_ATTRIBUTE_TABLE,
+#endif
+ { NULL, 0, 0, false, false, false, NULL }
+};
+
+/* Initialize the GCC target structure. */
+#undef TARGET_ATTRIBUTE_TABLE
+#define TARGET_ATTRIBUTE_TABLE ix86_attribute_table
+#if TARGET_DLLIMPORT_DECL_ATTRIBUTES
+# undef TARGET_MERGE_DECL_ATTRIBUTES
+# define TARGET_MERGE_DECL_ATTRIBUTES merge_dllimport_decl_attributes
+#endif
+
+#undef TARGET_COMP_TYPE_ATTRIBUTES
+#define TARGET_COMP_TYPE_ATTRIBUTES ix86_comp_type_attributes
+
+#undef TARGET_INIT_BUILTINS
+#define TARGET_INIT_BUILTINS ix86_init_builtins
+#undef TARGET_EXPAND_BUILTIN
+#define TARGET_EXPAND_BUILTIN ix86_expand_builtin
+
+#undef TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION
+#define TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION ix86_builtin_vectorized_function
+#undef TARGET_VECTORIZE_BUILTIN_CONVERSION
+#define TARGET_VECTORIZE_BUILTIN_CONVERSION ix86_builtin_conversion
+
+#undef TARGET_ASM_FUNCTION_EPILOGUE
+#define TARGET_ASM_FUNCTION_EPILOGUE ix86_output_function_epilogue
+
+#undef TARGET_ENCODE_SECTION_INFO
+#ifndef SUBTARGET_ENCODE_SECTION_INFO
+#define TARGET_ENCODE_SECTION_INFO ix86_encode_section_info
+#else
+#define TARGET_ENCODE_SECTION_INFO SUBTARGET_ENCODE_SECTION_INFO
+#endif
+
+#undef TARGET_ASM_OPEN_PAREN
+#define TARGET_ASM_OPEN_PAREN ""
+#undef TARGET_ASM_CLOSE_PAREN
+#define TARGET_ASM_CLOSE_PAREN ""
+
+#undef TARGET_ASM_ALIGNED_HI_OP
+#define TARGET_ASM_ALIGNED_HI_OP ASM_SHORT
+#undef TARGET_ASM_ALIGNED_SI_OP
+#define TARGET_ASM_ALIGNED_SI_OP ASM_LONG
+#ifdef ASM_QUAD
+#undef TARGET_ASM_ALIGNED_DI_OP
+#define TARGET_ASM_ALIGNED_DI_OP ASM_QUAD
+#endif
+
+#undef TARGET_ASM_UNALIGNED_HI_OP
+#define TARGET_ASM_UNALIGNED_HI_OP TARGET_ASM_ALIGNED_HI_OP
+#undef TARGET_ASM_UNALIGNED_SI_OP
+#define TARGET_ASM_UNALIGNED_SI_OP TARGET_ASM_ALIGNED_SI_OP
+#undef TARGET_ASM_UNALIGNED_DI_OP
+#define TARGET_ASM_UNALIGNED_DI_OP TARGET_ASM_ALIGNED_DI_OP
+
+#undef TARGET_SCHED_ADJUST_COST
+#define TARGET_SCHED_ADJUST_COST ix86_adjust_cost
+#undef TARGET_SCHED_ISSUE_RATE
+#define TARGET_SCHED_ISSUE_RATE ix86_issue_rate
+#undef TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD
+#define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD \
+ ia32_multipass_dfa_lookahead
+
+#undef TARGET_FUNCTION_OK_FOR_SIBCALL
+#define TARGET_FUNCTION_OK_FOR_SIBCALL ix86_function_ok_for_sibcall
+
+#ifdef HAVE_AS_TLS
+#undef TARGET_HAVE_TLS
+#define TARGET_HAVE_TLS true
+#endif
+#undef TARGET_CANNOT_FORCE_CONST_MEM
+#define TARGET_CANNOT_FORCE_CONST_MEM ix86_cannot_force_const_mem
+#undef TARGET_USE_BLOCKS_FOR_CONSTANT_P
+#define TARGET_USE_BLOCKS_FOR_CONSTANT_P hook_bool_mode_rtx_true
+
+#undef TARGET_DELEGITIMIZE_ADDRESS
+#define TARGET_DELEGITIMIZE_ADDRESS ix86_delegitimize_address
+
+#undef TARGET_MS_BITFIELD_LAYOUT_P
+#define TARGET_MS_BITFIELD_LAYOUT_P ix86_ms_bitfield_layout_p
+
+#if TARGET_MACHO
+#undef TARGET_BINDS_LOCAL_P
+#define TARGET_BINDS_LOCAL_P darwin_binds_local_p
+#endif
+#if TARGET_DLLIMPORT_DECL_ATTRIBUTES
+#undef TARGET_BINDS_LOCAL_P
+#define TARGET_BINDS_LOCAL_P i386_pe_binds_local_p
+#endif
+
+#undef TARGET_ASM_OUTPUT_MI_THUNK
+#define TARGET_ASM_OUTPUT_MI_THUNK x86_output_mi_thunk
+#undef TARGET_ASM_CAN_OUTPUT_MI_THUNK
+#define TARGET_ASM_CAN_OUTPUT_MI_THUNK x86_can_output_mi_thunk
+
+#undef TARGET_ASM_FILE_START
+#define TARGET_ASM_FILE_START x86_file_start
+
+#undef TARGET_DEFAULT_TARGET_FLAGS
+#define TARGET_DEFAULT_TARGET_FLAGS \
+ (TARGET_DEFAULT \
+ | TARGET_64BIT_DEFAULT \
+ | TARGET_SUBTARGET_DEFAULT \
+ | TARGET_TLS_DIRECT_SEG_REFS_DEFAULT)
+
+#undef TARGET_HANDLE_OPTION
+#define TARGET_HANDLE_OPTION ix86_handle_option
+
+#undef TARGET_RTX_COSTS
+#define TARGET_RTX_COSTS ix86_rtx_costs
+#undef TARGET_ADDRESS_COST
+#define TARGET_ADDRESS_COST ix86_address_cost
+
+#undef TARGET_FIXED_CONDITION_CODE_REGS
+#define TARGET_FIXED_CONDITION_CODE_REGS ix86_fixed_condition_code_regs
+#undef TARGET_CC_MODES_COMPATIBLE
+#define TARGET_CC_MODES_COMPATIBLE ix86_cc_modes_compatible
+
+#undef TARGET_MACHINE_DEPENDENT_REORG
+#define TARGET_MACHINE_DEPENDENT_REORG ix86_reorg
+
+#undef TARGET_BUILD_BUILTIN_VA_LIST
+#define TARGET_BUILD_BUILTIN_VA_LIST ix86_build_builtin_va_list
+
+#undef TARGET_MD_ASM_CLOBBERS
+#define TARGET_MD_ASM_CLOBBERS ix86_md_asm_clobbers
+
+#undef TARGET_PROMOTE_PROTOTYPES
+#define TARGET_PROMOTE_PROTOTYPES hook_bool_tree_true
+#undef TARGET_STRUCT_VALUE_RTX
+#define TARGET_STRUCT_VALUE_RTX ix86_struct_value_rtx
+#undef TARGET_SETUP_INCOMING_VARARGS
+#define TARGET_SETUP_INCOMING_VARARGS ix86_setup_incoming_varargs
+#undef TARGET_MUST_PASS_IN_STACK
+#define TARGET_MUST_PASS_IN_STACK ix86_must_pass_in_stack
+#undef TARGET_PASS_BY_REFERENCE
+#define TARGET_PASS_BY_REFERENCE ix86_pass_by_reference
+#undef TARGET_INTERNAL_ARG_POINTER
+#define TARGET_INTERNAL_ARG_POINTER ix86_internal_arg_pointer
+#undef TARGET_DWARF_HANDLE_FRAME_UNSPEC
+#define TARGET_DWARF_HANDLE_FRAME_UNSPEC ix86_dwarf_handle_frame_unspec
+#undef TARGET_STRICT_ARGUMENT_NAMING
+#define TARGET_STRICT_ARGUMENT_NAMING hook_bool_CUMULATIVE_ARGS_true
+
+#undef TARGET_GIMPLIFY_VA_ARG_EXPR
+#define TARGET_GIMPLIFY_VA_ARG_EXPR ix86_gimplify_va_arg
+
+#undef TARGET_SCALAR_MODE_SUPPORTED_P
+#define TARGET_SCALAR_MODE_SUPPORTED_P ix86_scalar_mode_supported_p
+
+#undef TARGET_VECTOR_MODE_SUPPORTED_P
+#define TARGET_VECTOR_MODE_SUPPORTED_P ix86_vector_mode_supported_p
+
+#ifdef HAVE_AS_TLS
+#undef TARGET_ASM_OUTPUT_DWARF_DTPREL
+#define TARGET_ASM_OUTPUT_DWARF_DTPREL i386_output_dwarf_dtprel
+#endif
+
+#ifdef SUBTARGET_INSERT_ATTRIBUTES
+#undef TARGET_INSERT_ATTRIBUTES
+#define TARGET_INSERT_ATTRIBUTES SUBTARGET_INSERT_ATTRIBUTES
+#endif
+
+#undef TARGET_MANGLE_FUNDAMENTAL_TYPE
+#define TARGET_MANGLE_FUNDAMENTAL_TYPE ix86_mangle_fundamental_type
+
+#undef TARGET_STACK_PROTECT_FAIL
+#define TARGET_STACK_PROTECT_FAIL ix86_stack_protect_fail
+
+#undef TARGET_FUNCTION_VALUE
+#define TARGET_FUNCTION_VALUE ix86_function_value
+
+struct gcc_target targetm = TARGET_INITIALIZER;
+\f
#include "gt-i386.h"
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