#include "target.h"
#include "target-def.h"
+#ifdef HALF_PIC_DEBUG
+#include "halfpic.h"
+#endif
+
#ifdef __GNU_STAB__
#define STAB_CODE_TYPE enum __stab_debug_code
#else
/* Enumeration for all of the relational tests, so that we can build
arrays indexed by the test type, and not worry about the order
- of EQ, NE, etc. */
+ of EQ, NE, etc. */
enum internal_test {
ITEST_EQ,
ATTRIBUTE_NORETURN;
static int symbolic_expression_p PARAMS ((rtx));
static void mips_add_gc_roots PARAMS ((void));
+static bool mips_assemble_integer PARAMS ((rtx, unsigned int, int));
static void mips_output_function_epilogue PARAMS ((FILE *, HOST_WIDE_INT));
static void mips_output_function_prologue PARAMS ((FILE *, HOST_WIDE_INT));
static enum processor_type mips_parse_cpu PARAMS ((const char *));
start and end boundaries). */
int sdb_label_count = 0;
-/* Next label # for each statement for Silicon Graphics IRIS systems. */
+/* Next label # for each statement for Silicon Graphics IRIS systems. */
int sym_lineno = 0;
/* Non-zero if inside of a function, because the stupid MIPS asm can't
/* which instruction set architecture to use. */
int mips_isa;
-#ifdef MIPS_ABI_DEFAULT
-/* Which ABI to use. This is defined to a constant in mips.h if the target
- doesn't support multiple ABIs. */
+/* which abi to use. */
int mips_abi;
-#endif
/* Strings to hold which cpu and instruction set architecture to use. */
const char *mips_cpu_string; /* for -mcpu=<xxx> */
/* This is only used to determine if an type size setting option was
explicitly specified (-mlong64, -mint64, -mlong32). The specs
- set this option if such an option is used. */
+ set this option if such an option is used. */
const char *mips_explicit_type_size_string;
/* Whether we are generating mips16 hard float code. In mips16 mode
avoid using up another bit in target_flags. */
const char *mips_entry_string;
+const char *mips_cache_flush_func = CACHE_FLUSH_FUNC;
+
/* Whether we should entry and exit pseudo-ops in mips16 mode. */
int mips_entry;
/* Mips software names for the registers, used to overwrite the
mips_reg_names array. */
-char mips_sw_reg_names[][8] =
+static const char mips_sw_reg_names[][8] =
{
"$zero","$at", "$v0", "$v1", "$a0", "$a1", "$a2", "$a3",
"$t0", "$t1", "$t2", "$t3", "$t4", "$t5", "$t6", "$t7",
};
/* Map hard register number to register class */
-enum reg_class mips_regno_to_class[] =
+const enum reg_class mips_regno_to_class[] =
{
GR_REGS, GR_REGS, M16_NA_REGS, M16_NA_REGS,
M16_REGS, M16_REGS, M16_REGS, M16_REGS,
};
\f
/* Initialize the GCC target structure. */
+#undef TARGET_ASM_ALIGNED_HI_OP
+#define TARGET_ASM_ALIGNED_HI_OP "\t.half\t"
+#undef TARGET_ASM_ALIGNED_SI_OP
+#define TARGET_ASM_ALIGNED_SI_OP "\t.word\t"
+#undef TARGET_ASM_INTEGER
+#define TARGET_ASM_INTEGER mips_assemble_integer
+
+#if TARGET_IRIX5 && !TARGET_IRIX6
+#undef TARGET_ASM_UNALIGNED_HI_OP
+#define TARGET_ASM_UNALIGNED_HI_OP "\t.align 0\n\t.half\t"
+#undef TARGET_ASM_UNALIGNED_SI_OP
+#define TARGET_ASM_UNALIGNED_SI_OP "\t.align 0\n\t.word\t"
+#endif
+
#undef TARGET_ASM_FUNCTION_PROLOGUE
#define TARGET_ASM_FUNCTION_PROLOGUE mips_output_function_prologue
#undef TARGET_ASM_FUNCTION_EPILOGUE
return register_operand (op, mode);
}
-/* Return truth value of whether OP is a integer which fits in 16 bits */
+/* Return truth value of whether OP is an integer which fits in 16 bits. */
int
small_int (op, mode)
}
/* Return truth value of whether OP is a register or the constant 0,
- even in mips16 mode. */
+ even in mips16 mode. */
int
true_reg_or_0_operand (op, mode)
if (GET_CODE (op) != SYMBOL_REF)
return 0;
- /* let's be paranoid.... */
+ /* let's be paranoid.... */
if (! SMALL_INT (offset))
return 0;
}
return 1;
/* Similarly, we accept a case where the memory address is
- itself on the stack, and will be reloaded. */
+ itself on the stack, and will be reloaded. */
if (GET_CODE (addr) == MEM)
{
rtx maddr;
}
/* Check for constant before stripping off SUBREG, so that we don't
- accept (subreg (const_int)) which will fail to reload. */
+ accept (subreg (const_int)) which will fail to reload. */
if (CONSTANT_ADDRESS_P (xinsn)
&& ! (mips_split_addresses && mips_check_split (xinsn, mode))
&& (! TARGET_MIPS16 || mips16_constant (xinsn, mode, 1, 0)))
if (ret == 0)
{
- abort_with_insn (insn, "Bad move");
+ abort_with_insn (insn, "bad move");
return 0;
}
if (TARGET_FLOAT64)
{
if (!TARGET_64BIT)
- abort_with_insn (insn, "Bad move");
+ abort_with_insn (insn, "bad move");
#ifdef TARGET_FP_CALL_32
if (FP_CALL_GP_REG_P (regno1))
if (TARGET_FLOAT64)
{
if (!TARGET_64BIT)
- abort_with_insn (insn, "Bad move");
+ abort_with_insn (insn, "bad move");
#ifdef TARGET_FP_CALL_32
if (FP_CALL_GP_REG_P (regno0))
if (ret == 0)
{
- abort_with_insn (insn, "Bad move");
+ abort_with_insn (insn, "bad move");
return 0;
}
return 2;
}
- /* ... fall through ... */
+ /* ... fall through ... */
case SYMBOL_REF:
return SYMBOL_REF_FLAG (addr) ? 1 : 2;
The block move type can be one of the following:
BLOCK_MOVE_NORMAL Do all of the block move.
BLOCK_MOVE_NOT_LAST Do all but the last store.
- BLOCK_MOVE_LAST Do just the last store. */
+ BLOCK_MOVE_LAST Do just the last store. */
const char *
output_block_move (insn, operands, num_regs, move_type)
else if (num_regs < 1)
abort_with_insn (insn,
- "Cannot do block move, not enough scratch registers");
+ "cannot do block move, not enough scratch registers");
while (bytes > 0)
{
}
*cum = zero_cum;
+ cum->prototype = (fntype && TYPE_ARG_TYPES (fntype));
/* Determine if this function has variable arguments. This is
indicated by the last argument being 'void_type_mode' if there
are no variable arguments. The standard MIPS calling sequence
- passes all arguments in the general purpose registers in this case. */
+ passes all arguments in the general purpose registers in this case. */
for (param = fntype ? TYPE_ARG_TYPES (fntype) : 0;
param != 0; param = next_param)
Note that the GPR save area is not constant size, due to optimization
in the prologue. Hence, we can't use a design with two pointers
and two offsets, although we could have designed this with two pointers
- and three offsets. */
+ and three offsets. */
tree
if (mips_abi == ABI_EABI)
{
int gpr_save_area_size;
- /* Note UNITS_PER_WORD is 4 bytes or 8, depending on TARGET_64BIT. */
+ /* Note UNITS_PER_WORD is 4 bytes or 8, depending on TARGET_64BIT. */
if (int_arg_words < 8 )
/* Adjust for the prologue's economy measure */
gpr_save_area_size = (8 - int_arg_words) * UNITS_PER_WORD;
/* Emit code setting a pointer into the overflow (shared-stack) area.
If there were more than 8 non-float formals, or more than 8
float formals, then this pointer isn't to the base of the area.
- In that case, it must point to where the first vararg is. */
+ In that case, it must point to where the first vararg is. */
size_excess = 0;
if (float_formals > floats_passed_in_regs)
size_excess += (float_formals-floats_passed_in_regs) * 8;
take into account the exact sequence of floats and non-floats
which make up the excess. That calculation should be rolled
into the code which sets the current_function_args_info struct.
- The above then reduces to a fetch from that struct. */
+ The above then reduces to a fetch from that struct. */
t = make_tree (TREE_TYPE (ovfl), virtual_incoming_args_rtx);
t = build (MODIFY_EXPR, TREE_TYPE (ovfl), ovfl, t);
expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
- /* Emit code setting a ptr to the base of the overflow area. */
+ /* Emit code setting a ptr to the base of the overflow area. */
t = make_tree (TREE_TYPE (gtop), virtual_incoming_args_rtx);
t = build (MODIFY_EXPR, TREE_TYPE (gtop), gtop, t);
expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
If mips4, this is gpr_save_area_size below the overflow area.
If mips2, also round down to an 8-byte boundary, since the FPR
save area is 8-byte aligned, and GPR is 4-byte-aligned.
- Therefore there can be a 4-byte gap between the save areas. */
+ Therefore there can be a 4-byte gap between the save areas. */
gprv = make_tree (TREE_TYPE (ftop), virtual_incoming_args_rtx);
fpr_save_offset = gpr_save_area_size;
if (!TARGET_64BIT)
/* TARGET_SOFT_FLOAT or TARGET_SINGLE_FLOAT */
/* Everything is in the GPR save area, or in the overflow
- area which is contiguous with it. */
+ area which is contiguous with it. */
int offset = -gpr_save_area_size;
if (gpr_save_area_size == 0)
if (TARGET_SOFT_FLOAT || TARGET_SINGLE_FLOAT)
{
/* Case of all args in a merged stack. No need to check bounds,
- just advance valist along the stack. */
+ just advance valist along the stack. */
tree gpr = valist;
if (! indirect
return addr_rtx;
}
- /* Not a simple merged stack. Need ptrs and indexes left by va_start. */
+ /* Not a simple merged stack. Need ptrs and indexes left by va_start. */
f_ovfl = TYPE_FIELDS (va_list_type_node);
f_gtop = TREE_CHAIN (f_ovfl);
if (TREE_CODE (type) == REAL_TYPE)
{
- /* Emit code to branch if foff == 0. */
+ /* Emit code to branch if foff == 0. */
r = expand_expr (foff, NULL_RTX, TYPE_MODE (TREE_TYPE (foff)),
EXPAND_NORMAL);
- emit_cmp_and_jump_insns (r, const0_rtx, EQ,
- const1_rtx, GET_MODE (r), 1, 1, lab_false);
+ emit_cmp_and_jump_insns (r, const0_rtx, EQ, const1_rtx, GET_MODE (r),
+ 1, lab_false);
/* Emit code for addr_rtx = ftop - foff */
t = build (MINUS_EXPR, TREE_TYPE (ftop), ftop, foff );
/* For mips2, the overflow area contains mixed size items.
If a 4-byte int is followed by an 8-byte float, then
natural alignment causes a 4 byte gap.
- So, dynamically adjust ovfl up to a multiple of 8. */
+ So, dynamically adjust ovfl up to a multiple of 8. */
t = build (BIT_AND_EXPR, TREE_TYPE (ovfl), ovfl,
build_int_2 (7, 0));
t = build (PLUS_EXPR, TREE_TYPE (ovfl), ovfl, t);
}
/* Emit code for addr_rtx = the ovfl pointer into overflow area.
- Regardless of mips2, postincrement the ovfl pointer by 8. */
+ Regardless of mips2, postincrement the ovfl pointer by 8. */
t = build (POSTINCREMENT_EXPR, TREE_TYPE(ovfl), ovfl,
size_int (8));
r = expand_expr (t, addr_rtx, Pmode, EXPAND_NORMAL);
/* In mips2, int takes 32 bits of the GPR save area, but
longlong takes an aligned 64 bits. So, emit code
to zero the low order bits of goff, thus aligning
- the later calculation of (gtop-goff) upwards. */
+ the later calculation of (gtop-goff) upwards. */
t = build (BIT_AND_EXPR, TREE_TYPE (goff), goff,
build_int_2 (-8, -1));
t = build (MODIFY_EXPR, TREE_TYPE (goff), goff, t);
expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
}
- /* Emit code to branch if goff == 0. */
+ /* Emit code to branch if goff == 0. */
r = expand_expr (goff, NULL_RTX, TYPE_MODE (TREE_TYPE (goff)),
EXPAND_NORMAL);
- emit_cmp_and_jump_insns (r, const0_rtx, EQ,
- const1_rtx, GET_MODE (r), 1, 1, lab_false);
+ emit_cmp_and_jump_insns (r, const0_rtx, EQ, const1_rtx, GET_MODE (r),
+ 1, lab_false);
- /* Emit code for addr_rtx = gtop - goff. */
+ /* Emit code for addr_rtx = gtop - goff. */
t = build (MINUS_EXPR, TREE_TYPE (gtop), gtop, goff);
r = expand_expr (t, addr_rtx, Pmode, EXPAND_NORMAL);
if (r != addr_rtx)
emit_move_insn (addr_rtx, r);
- /* Note that mips2 int is 32 bit, but mips2 longlong is 64. */
+ /* Note that mips2 int is 32 bit, but mips2 longlong is 64. */
if (! TARGET_64BIT && TYPE_PRECISION (type) == 64)
step_size = 8;
else
step_size = UNITS_PER_WORD;
/* Emit code for goff = goff - step_size.
- Advances the offset up GPR save area over the item. */
+ Advances the offset up GPR save area over the item. */
t = build (MINUS_EXPR, TREE_TYPE (goff), goff,
build_int_2 (step_size, 0));
t = build (MODIFY_EXPR, TREE_TYPE (goff), goff, t);
}
else
{
- /* Not EABI. */
+ /* Not EABI. */
int align;
/* ??? The original va-mips.h did always align, despite the fact
/* If both single-float and soft-float are set, then clear the one that
was set by TARGET_DEFAULT, leaving the one that was set by the
user. We assume here that the specs prevent both being set by the
- user. */
+ user. */
#ifdef TARGET_DEFAULT
if (TARGET_SINGLE_FLOAT && TARGET_SOFT_FLOAT)
target_flags &= ~((TARGET_DEFAULT) & (MASK_SOFT_FLOAT | MASK_SINGLE_FLOAT));
}
#ifdef MIPS_ABI_DEFAULT
- /* Get the ABI to use. */
+ /* Get the ABI to use. */
if (mips_abi_string == (char *) 0)
mips_abi = MIPS_ABI_DEFAULT;
else if (! strcmp (mips_abi_string, "32"))
|| mips_abi == ABI_64))
target_flags |= MASK_LONG64;
- /* ??? This doesn't work yet, so don't let people try to use it. */
- if (mips_abi == ABI_32)
- error ("The -mabi=32 support does not work yet.");
-
#else
if (mips_abi_string)
- error ("This target does not support the -mabi switch.");
+ error ("this target does not support the -mabi switch");
#endif
#ifdef MIPS_CPU_STRING_DEFAULT
mips_tune = PROCESSOR_R8000;
break;
case 32:
- mips_arch_string = "4kc";
- mips_arch = PROCESSOR_R4KC;
+ mips_tune_string = "4kc";
+ mips_tune = PROCESSOR_R4KC;
break;
case 64:
- mips_arch_string = "5kc";
- mips_arch = PROCESSOR_R5KC;
+ mips_tune_string = "5kc";
+ mips_tune = PROCESSOR_R5KC;
break;
}
}
}
- /* Handle processor configuration based on architecture. */
- if (TARGET_MIPS4100
- || TARGET_MIPS3900
- || TARGET_MIPS4KC
- || TARGET_MIPS5KC)
- target_flags |= MASK_SOFT_FLOAT;
-
-
if ((mips_arch == PROCESSOR_R3000 && (mips_isa != 1))
|| (mips_arch == PROCESSOR_R4KC && mips_isa != 32)
|| ((mips_arch == PROCESSOR_R5KC
if (mips_entry_string != NULL)
{
if (*mips_entry_string != '\0')
- error ("Invalid option `entry%s'", mips_entry_string);
+ error ("invalid option `entry%s'", mips_entry_string);
if (! TARGET_MIPS16)
warning ("-mentry is only meaningful with -mips-16");
/* sdbout_parms does not want this to crash for unrecognized cases. */
#if 0
else if (reg != arg_pointer_rtx)
- abort_with_insn (addr, "mips_debugger_offset called with non stack/frame/arg pointer.");
+ abort_with_insn (addr, "mips_debugger_offset called with non stack/frame/arg pointer");
#endif
return offset;
break;
default:
- error ("PRINT_OPERAND: Unknown punctuation '%c'", letter);
+ error ("PRINT_OPERAND: unknown punctuation '%c'", letter);
break;
}
{
case REG:
if (! TARGET_MIPS16 && REGNO (addr) == ARG_POINTER_REGNUM)
- abort_with_insn (addr, "Arg pointer not eliminated.");
+ abort_with_insn (addr, "arg pointer not eliminated");
fprintf (file, "0(%s)", reg_names [REGNO (addr)]);
break;
register rtx arg1 = XEXP (addr, 1);
if (! mips_split_addresses)
- abort_with_insn (addr, "PRINT_OPERAND_ADDRESS, Spurious LO_SUM.");
+ abort_with_insn (addr, "PRINT_OPERAND_ADDRESS, Spurious LO_SUM");
if (GET_CODE (arg0) != REG)
abort_with_insn (addr,
- "PRINT_OPERAND_ADDRESS, LO_SUM with #1 not REG.");
+ "PRINT_OPERAND_ADDRESS, LO_SUM with #1 not REG");
fprintf (file, "%%lo(");
print_operand_address (file, arg1);
abort_with_insn (addr, "PRINT_OPERAND_ADDRESS, invalid insn #2");
if (REGNO (reg) == ARG_POINTER_REGNUM)
- abort_with_insn (addr, "Arg pointer not eliminated.");
+ abort_with_insn (addr, "arg pointer not eliminated");
if (TARGET_MIPS16
&& GET_CODE (offset) == CONST
break;
}
}
+\f
+/* Target hook for assembling integer objects. It appears that the Irix
+ 6 assembler can't handle 64-bit decimal integers, so avoid printing
+ such an integer here. */
+static bool
+mips_assemble_integer (x, size, aligned_p)
+ rtx x;
+ unsigned int size;
+ int aligned_p;
+{
+ if ((TARGET_64BIT || TARGET_GAS) && size == 8 && aligned_p)
+ {
+ fputs ("\t.dword\t", asm_out_file);
+ if (HOST_BITS_PER_WIDE_INT < 64 || GET_CODE (x) != CONST_INT)
+ output_addr_const (asm_out_file, x);
+ else
+ print_operand (asm_out_file, x, 'X');
+ fputc ('\n', asm_out_file);
+ return true;
+ }
+ return default_assemble_integer (x, size, aligned_p);
+}
\f
/* If optimizing for the global pointer, keep track of all of the externs, so
that at the end of the file, we can emit the appropriate .extern
#ifdef ASM_OUTPUT_UNDEF_FUNCTION
int
mips_output_external_libcall (file, name)
- FILE *file;
+ FILE *file ATTRIBUTE_UNUSED;
const char *name;
{
register struct extern_list *p;
mips_asm_file_start (stream)
FILE *stream;
{
- const char * abi_string = NULL;
-
ASM_OUTPUT_SOURCE_FILENAME (stream, main_input_filename);
/* Versions of the MIPS assembler before 2.20 generate errors if a branch
if (TARGET_MIPS_AS && optimize && flag_delayed_branch)
fprintf (stream, "\t.set\tnobopt\n");
-#ifdef OBJECT_FORMAT_ELF
- /* Generate a special section to describe the ABI switches used to produce
- the resultant binary. This used to be done by the assembler setting bits
- in the ELF header's flags field, but we have run out of bits. GDB needs
- this information in order to be able to correctly debug these binaries.
- See the function mips_gdbarch_init() in gdb/mips-tdep.c. */
- switch (mips_abi)
- {
- case ABI_32: abi_string = "abi32"; break;
- case ABI_N32: abi_string = "abiN32"; break;
- case ABI_64: abi_string = "abi64"; break;
- case ABI_O64: abi_string = "abiO64"; break;
- case ABI_EABI: abi_string = TARGET_64BIT ? "eabi64" : "eabi32"; break;
- case ABI_MEABI:abi_string = TARGET_64BIT ? "meabi64" : "meabi32"; break;
- default:
- abort ();
- }
- /* Note - we use fprintf directly rather than called named_section()
- because in this way we can avoid creating an allocated section. We
- do not want this section to take up any space in the running
- executable. */
- fprintf (stream, "\t.section .mdebug.%s\n", abi_string);
+ if (TARGET_GAS)
+ {
+#if defined(OBJECT_FORMAT_ELF)
+ /* Generate a special section to describe the ABI switches used to
+ produce the resultant binary. This used to be done by the assembler
+ setting bits in the ELF header's flags field, but we have run out of
+ bits. GDB needs this information in order to be able to correctly
+ debug these binaries. See the function mips_gdbarch_init() in
+ gdb/mips-tdep.c. */
+ const char * abi_string = NULL;
+
+ switch (mips_abi)
+ {
+ case ABI_32: abi_string = "abi32"; break;
+ case ABI_N32: abi_string = "abiN32"; break;
+ case ABI_64: abi_string = "abi64"; break;
+ case ABI_O64: abi_string = "abiO64"; break;
+ case ABI_EABI: abi_string = TARGET_64BIT ? "eabi64" : "eabi32"; break;
+ case ABI_MEABI:abi_string = TARGET_64BIT ? "meabi64" : "meabi32"; break;
+ default:
+ abort ();
+ }
+ /* Note - we use fprintf directly rather than called named_section()
+ because in this way we can avoid creating an allocated section. We
+ do not want this section to take up any space in the running
+ executable. */
+ fprintf (stream, "\t.section .mdebug.%s\n", abi_string);
- /* Restore the default section. */
- fprintf (stream, "\t.previous\n");
+ /* Restore the default section. */
+ fprintf (stream, "\t.previous\n");
#endif
+ }
}
}
\f
-/* Output a double precision value to the assembler. If both the
- host and target are IEEE, emit the values in hex. */
-
-void
-mips_output_double (stream, value)
- FILE *stream;
- REAL_VALUE_TYPE value;
-{
-#ifdef REAL_VALUE_TO_TARGET_DOUBLE
- long value_long[2];
- REAL_VALUE_TO_TARGET_DOUBLE (value, value_long);
-
- fprintf (stream, "\t.word\t0x%08lx\t\t# %.20g\n\t.word\t0x%08lx\n",
- value_long[0], value, value_long[1]);
-#else
- fprintf (stream, "\t.double\t%.20g\n", value);
-#endif
-}
-
-/* Output a single precision value to the assembler. If both the
- host and target are IEEE, emit the values in hex. */
-
-void
-mips_output_float (stream, value)
- FILE *stream;
- REAL_VALUE_TYPE value;
-{
-#ifdef REAL_VALUE_TO_TARGET_SINGLE
- long value_long;
- REAL_VALUE_TO_TARGET_SINGLE (value, value_long);
-
- fprintf (stream, "\t.word\t0x%08lx\t\t# %.12g (float)\n", value_long, value);
-#else
- fprintf (stream, "\t.float\t%.12g\n", value);
-#endif
-}
-\f
/* Return the bytes needed to compute the frame pointer from the current
stack pointer.
call to mcount. */
if (total_size == extra_size
&& (mips_abi == ABI_32 || mips_abi == ABI_O64 || mips_abi == ABI_EABI)
- && ! profile_flag)
+ && ! current_function_profile)
total_size = extra_size = 0;
else if (TARGET_ABICALLS)
{
}
else
dwarf_expr = mips_frame_set (GET_MODE (reg), REGNO (reg), offset);
-
+
mips_annotate_frame_insn (emit_move_insn (mem, reg), dwarf_expr);
}
{
long mask = current_frame_info.mask;
long fmask = current_frame_info.fmask;
+ long real_mask = mask;
int regno;
rtx base_reg_rtx;
HOST_WIDE_INT base_offset;
&& ! BITSET_P (mask, HARD_FRAME_POINTER_REGNUM - GP_REG_FIRST))
abort ();
+ /* Do not restore GP under certain conditions. */
+ if (! store_p
+ && TARGET_ABICALLS
+ && (mips_abi == ABI_32 || mips_abi == ABI_O64))
+ mask &= ~(1 << (PIC_OFFSET_TABLE_REGNUM - GP_REG_FIRST));
+
if (mask == 0 && fmask == 0)
return;
if (gp_offset < 0 || end_offset < 0)
internal_error
- ("gp_offset (%ld) or end_offset (%ld) is less than zero.",
+ ("gp_offset (%ld) or end_offset (%ld) is less than zero",
(long) gp_offset, (long) end_offset);
/* If we see a large frame in mips16 mode, we save the registers
if (store_p)
mips_emit_frame_related_store (mem_rtx, reg_rtx, gp_offset);
- else if (!TARGET_ABICALLS
- || (mips_abi != ABI_32 && mips_abi != ABI_O64)
- || regno != (PIC_OFFSET_TABLE_REGNUM - GP_REG_FIRST))
+ else
{
emit_move_insn (reg_rtx, mem_rtx);
if (TARGET_MIPS16
}
else
{
- if (store_p || !TARGET_ABICALLS
- || (mips_abi != ABI_32 && mips_abi != ABI_O64)
- || regno != (PIC_OFFSET_TABLE_REGNUM - GP_REG_FIRST))
+ int r = regno;
+
+ /* The mips16 does not have an instruction to
+ load $31, so we load $7 instead, and work
+ things out in the caller. */
+ if (TARGET_MIPS16 && ! store_p && r == GP_REG_FIRST + 31)
+ r = GP_REG_FIRST + 7;
+ /* The mips16 sometimes needs to save $18. */
+ if (TARGET_MIPS16
+ && regno != GP_REG_FIRST + 31
+ && ! M16_REG_P (regno))
{
- int r = regno;
-
- /* The mips16 does not have an instruction to
- load $31, so we load $7 instead, and work
- things out in the caller. */
- if (TARGET_MIPS16 && ! store_p && r == GP_REG_FIRST + 31)
- r = GP_REG_FIRST + 7;
- /* The mips16 sometimes needs to save $18. */
- if (TARGET_MIPS16
- && regno != GP_REG_FIRST + 31
- && ! M16_REG_P (regno))
+ if (! store_p)
+ r = GP_REG_FIRST + 6;
+ else
{
- if (! store_p)
- r = GP_REG_FIRST + 6;
- else
- {
- r = GP_REG_FIRST + 3;
- fprintf (file, "\tmove\t%s,%s\n",
- reg_names[r], reg_names[regno]);
- }
+ r = GP_REG_FIRST + 3;
+ fprintf (file, "\tmove\t%s,%s\n",
+ reg_names[r], reg_names[regno]);
}
- fprintf (file, "\t%s\t%s,",
- (TARGET_64BIT
- ? (store_p) ? "sd" : "ld"
- : (store_p) ? "sw" : "lw"),
- reg_names[r]);
- fprintf (file, HOST_WIDE_INT_PRINT_DEC,
- gp_offset - base_offset);
- fprintf (file, "(%s)\n", reg_names[REGNO(base_reg_rtx)]);
- if (! store_p
- && TARGET_MIPS16
- && regno != GP_REG_FIRST + 31
- && ! M16_REG_P (regno))
- fprintf (file, "\tmove\t%s,%s\n",
- reg_names[regno], reg_names[r]);
}
-
+ fprintf (file, "\t%s\t%s,",
+ (TARGET_64BIT
+ ? (store_p) ? "sd" : "ld"
+ : (store_p) ? "sw" : "lw"),
+ reg_names[r]);
+ fprintf (file, HOST_WIDE_INT_PRINT_DEC,
+ gp_offset - base_offset);
+ fprintf (file, "(%s)\n", reg_names[REGNO(base_reg_rtx)]);
+ if (! store_p
+ && TARGET_MIPS16
+ && regno != GP_REG_FIRST + 31
+ && ! M16_REG_P (regno))
+ fprintf (file, "\tmove\t%s,%s\n",
+ reg_names[regno], reg_names[r]);
}
gp_offset -= GET_MODE_SIZE (gpr_mode);
}
+ /* If the restore is being supressed, still take into account
+ the offset at which it is stored. */
+ else if (BITSET_P (real_mask, regno - GP_REG_FIRST))
+ {
+ gp_offset -= GET_MODE_SIZE (gpr_mode);
+ }
}
else
base_reg_rtx = 0, base_offset = 0;
if (fp_offset < 0 || end_offset < 0)
internal_error
- ("fp_offset (%ld) or end_offset (%ld) is less than zero.",
+ ("fp_offset (%ld) or end_offset (%ld) is less than zero",
(long) fp_offset, (long) end_offset);
else if (fp_offset < 32768)
#ifndef FUNCTION_NAME_ALREADY_DECLARED
const char *fnname;
#endif
- long tsize = current_frame_info.total_size;
+ HOST_WIDE_INT tsize = current_frame_info.total_size;
ASM_OUTPUT_SOURCE_FILENAME (file, DECL_SOURCE_FILE (current_function_decl));
(reg_names[(frame_pointer_needed)
? HARD_FRAME_POINTER_REGNUM : STACK_POINTER_REGNUM]),
((frame_pointer_needed && TARGET_MIPS16)
- ? (tsize - current_function_outgoing_args_size)
- : tsize),
- reg_names[31 + GP_REG_FIRST],
+ ? ((long) tsize - current_function_outgoing_args_size)
+ : (long) tsize),
+ reg_names[GP_REG_FIRST + 31],
current_frame_info.var_size,
current_frame_info.num_gp,
current_frame_info.num_fp,
/* Require:
OLD_SP == *FRAMEREG + FRAMESIZE => can find old_sp from nominated FP reg.
- HIGHEST_GP_SAVED == *FRAMEREG + FRAMESIZE + GPOFFSET => can find saved regs. */
+ HIGHEST_GP_SAVED == *FRAMEREG + FRAMESIZE + GPOFFSET => can find saved regs. */
}
if (mips_entry && ! mips_can_use_return_insn ())
|| GET_CODE (offset) != CONST_INT)
continue;
if (REGNO (base) == (unsigned) STACK_POINTER_REGNUM
- && (unsigned HOST_WIDE_INT) INTVAL (offset)
- == tsize + (REGNO (src) - 4) * UNITS_PER_WORD)
+ && INTVAL (offset) == tsize + (REGNO (src) - 4) * UNITS_PER_WORD)
;
else if (REGNO (base) == (unsigned) HARD_FRAME_POINTER_REGNUM
- && ((unsigned HOST_WIDE_INT) INTVAL (offset)
+ && (INTVAL (offset)
== (tsize
+ (REGNO (src) - 4) * UNITS_PER_WORD
- current_function_outgoing_args_size)))
{
fprintf (file, "\t%s\t%s,%s,%ld\n",
(Pmode == DImode ? "dsubu" : "subu"),
- sp_str, sp_str, tsize);
+ sp_str, sp_str, (long) tsize);
fprintf (file, "\t.cprestore %ld\n", current_frame_info.args_size);
}
the varargs special argument, and treat it as part of the
variable arguments.
- This is only needed if store_args_on_stack is true. */
+ This is only needed if store_args_on_stack is true. */
INIT_CUMULATIVE_ARGS (args_so_far, fntype, NULL_RTX, 0);
regno = GP_ARG_FIRST;
pattern = RTVEC_ELT (adjust, i);
if (GET_CODE (pattern) != SET
|| GET_CODE (SET_SRC (pattern)) != ASHIFT)
- abort_with_insn (pattern, "Insn is not a shift");
+ abort_with_insn (pattern, "insn is not a shift");
PUT_CODE (SET_SRC (pattern), ASHIFTRT);
insn = emit_insn (pattern);
int offset = (regno - GP_ARG_FIRST) * UNITS_PER_WORD;
rtx ptr = stack_pointer_rtx;
- /* If we are doing svr4-abi, sp has already been decremented by tsize. */
+ /* If we are doing svr4-abi, sp has already been decremented by tsize. */
if (TARGET_ABICALLS)
offset += tsize;
/* If we are profiling, make sure no instructions are scheduled before
the call to mcount. */
- if (profile_flag || profile_block_flag)
+ if (current_function_profile)
emit_insn (gen_blockage ());
}
\f
/* Do any necessary cleanup after a function to restore stack, frame,
- and regs. */
+ and regs. */
#define RA_MASK BITMASK_HIGH /* 1 << 31 */
#define PIC_OFFSET_TABLE_MASK (1 << (PIC_OFFSET_TABLE_REGNUM - GP_REG_FIRST))
if (! reload_completed)
return 0;
- if (regs_ever_live[31] || profile_flag)
+ if (regs_ever_live[31] || current_function_profile)
return 0;
/* In mips16 mode, a function which returns a floating point value
{
/* Don't pass the actual CUM to FUNCTION_ARG, because we would
get double copies of any offsets generated for small structs
- passed in registers. */
+ passed in registers. */
CUMULATIVE_ARGS temp;
temp = *cum;
if (FUNCTION_ARG (temp, mode, type, named) != 0)
/* We build the stub code by hand. That's the only way we can
do it, since we can't generate 32 bit code during a 16 bit
- compilation. */
+ compilation. */
/* We don't want the assembler to insert any nops here. */
fprintf (asm_out_file, "\t.set\tnoreorder\n");
{
/* If we haven't had a barrier within 0x8000 bytes of a
constant reference or we are at the end of the function,
- emit a barrier now. */
+ emit a barrier now. */
rtx label, jump, barrier;
LENGTH is the length (in bytes) of the sequence we are to generate.
That tells us whether to generate a simple conditional branch, or a
reversed conditional branch around a `jr' instruction. */
-char *
+const char *
mips_output_conditional_branch (insn,
operands,
two_operands_p,
break;
case LTU:
- /* A condition which will always be false. */
+ /* A condition which will always be false. */
code = NE;
op1 = "%.";
break;
.set reorder
l:
- Because we have to jump four bytes *past* the following
- instruction if this branch was annulled, we can't just use
- a label, as in the picture above; there's no way to put the
- label after the next instruction, as the assembler does not
- accept `.L+4' as the target of a branch. (We can't just
- wait until the next instruction is output; it might be a
- macro and take up more than four bytes. Once again, we see
- why we want to eliminate macros.)
-
- If the branch is annulled, we jump four more bytes that we
- would otherwise; that way we skip the annulled instruction
- in the delay slot. */
+ */
- const char *const target
- = ((mips_branch_likely || length == 16) ? ".+16" : ".+12");
- char *c;
+ rtx orig_target;
+ rtx target = gen_label_rtx ();
- strcpy (buffer, "%(%<");
- c = strchr (buffer, '\0');
- /* Generate the reversed comparision. This takes four
+ output_asm_insn ("%(%<", 0);
+ orig_target = operands[1];
+ operands[1] = target;
+ /* Generate the reversed comparison. This takes four
bytes. */
if (float_p)
- sprintf (c, "%%*b%s\t%%Z2%s",
- inverted_p ? comp : inverted_comp,
- target);
+ sprintf (buffer, "%%*b%s\t%%Z2%%1",
+ inverted_p ? comp : inverted_comp);
else
- sprintf (c, "%%*b%s%s\t%s%s,%s",
+ sprintf (buffer, "%%*b%s%s\t%s%s,%%1",
inverted_p ? comp : inverted_comp,
need_z_p ? "z" : "",
op1,
- op2,
- target);
- strcat (c, "\n\tnop\n\tj\t%1");
- if (length == 16)
- /* The delay slot was unfilled. Since we're inside
- .noreorder, the assembler will not fill in the NOP for
- us, so we must do it ourselves. */
- strcat (buffer, "\n\tnop");
- strcat (buffer, "%>%)");
- return buffer;
+ op2);
+ output_asm_insn (buffer, operands);
+ operands[1] = orig_target;
+
+ output_asm_insn ("nop\n\tj\t%1", operands);
+
+ if (length == 16)
+ output_asm_insn ("nop", 0);
+ else
+ {
+ /* Output delay slot instruction. */
+ rtx insn = final_sequence;
+ final_scan_insn (XVECEXP (insn, 0, 1), asm_out_file,
+ optimize, 0, 1);
+ INSN_DELETED_P (XVECEXP (insn, 0, 1)) = 1;
+ }
+ output_asm_insn ("%>%)", 0);
+ ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
+ CODE_LABEL_NUMBER (target));
+ return "";
}
/* We do not currently use this code. It handles jumps to
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