/* Definitions of target machine for GNU compiler, for IBM RS/6000.
Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+ 2010, 2011
Free Software Foundation, Inc.
Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu)
/* Note that some other tm.h files include this one and then override
many of the definitions. */
+#ifndef RS6000_OPTS_H
+#include "config/rs6000/rs6000-opts.h"
+#endif
+
/* Definitions for the object file format. These are set at
compile-time. */
#define TARGET_AIX 0
#endif
+#ifndef TARGET_AIX_OS
+#define TARGET_AIX_OS 0
+#endif
+
/* Control whether function entry points use a "dot" symbol when
ABI_AIX. */
#define DOT_SYMBOLS 1
%{mcpu=e500mc: -me500mc} \
%{mcpu=e500mc64: -me500mc64} \
%{maltivec: -maltivec} \
+%{mvsx: -mvsx %{!maltivec: -maltivec} %{!mcpu*: %(asm_cpu_power7)}} \
-many"
#define CPP_DEFAULT_SPEC ""
#define TARGET_SECURE_PLT 0
#endif
-/* Code model for 64-bit linux.
- small: 16-bit toc offsets.
- medium: 32-bit toc offsets, static data and code within 2G of TOC pointer.
- large: 32-bit toc offsets, no limit on static data and code. */
-enum rs6000_cmodel {
- CMODEL_SMALL,
- CMODEL_MEDIUM,
- CMODEL_LARGE
-};
-
#ifndef TARGET_CMODEL
#define TARGET_CMODEL CMODEL_SMALL
#endif
#define TARGET_DEFAULT (MASK_POWER | MASK_MULTIPLE | MASK_STRING)
-/* Processor type. Order must match cpu attribute in MD file. */
-enum processor_type
- {
- PROCESSOR_RIOS1,
- PROCESSOR_RIOS2,
- PROCESSOR_RS64A,
- PROCESSOR_MPCCORE,
- PROCESSOR_PPC403,
- PROCESSOR_PPC405,
- PROCESSOR_PPC440,
- PROCESSOR_PPC476,
- PROCESSOR_PPC601,
- PROCESSOR_PPC603,
- PROCESSOR_PPC604,
- PROCESSOR_PPC604e,
- PROCESSOR_PPC620,
- PROCESSOR_PPC630,
- PROCESSOR_PPC750,
- PROCESSOR_PPC7400,
- PROCESSOR_PPC7450,
- PROCESSOR_PPC8540,
- PROCESSOR_PPCE300C2,
- PROCESSOR_PPCE300C3,
- PROCESSOR_PPCE500MC,
- PROCESSOR_PPCE500MC64,
- PROCESSOR_POWER4,
- PROCESSOR_POWER5,
- PROCESSOR_POWER6,
- PROCESSOR_POWER7,
- PROCESSOR_CELL,
- PROCESSOR_PPCA2
-};
-
/* FPU operations supported.
Each use of TARGET_SINGLE_FLOAT or TARGET_DOUBLE_FLOAT must
also test TARGET_HARD_FLOAT. */
#define TARGET_SIMPLE_FPU 0
#define TARGET_XILINX_FPU 0
-extern enum processor_type rs6000_cpu;
-
/* Recast the processor type to the cpu attribute. */
#define rs6000_cpu_attr ((enum attr_cpu)rs6000_cpu)
#define PROCESSOR_DEFAULT PROCESSOR_RIOS1
#define PROCESSOR_DEFAULT64 PROCESSOR_RS64A
-/* FP processor type. */
-enum fpu_type_t
-{
- FPU_NONE, /* No FPU */
- FPU_SF_LITE, /* Limited Single Precision FPU */
- FPU_DF_LITE, /* Limited Double Precision FPU */
- FPU_SF_FULL, /* Full Single Precision FPU */
- FPU_DF_FULL /* Full Double Single Precision FPU */
-};
-
extern enum fpu_type_t fpu_type;
/* Specify the dialect of assembler to use. New mnemonics is dialect one
and the old mnemonics are dialect zero. */
#define ASSEMBLER_DIALECT (TARGET_NEW_MNEMONICS ? 1 : 0)
-/* Types of costly dependences. */
-enum rs6000_dependence_cost
- {
- max_dep_latency = 1000,
- no_dep_costly,
- all_deps_costly,
- true_store_to_load_dep_costly,
- store_to_load_dep_costly
- };
-
-/* Types of nop insertion schemes in sched target hook sched_finish. */
-enum rs6000_nop_insertion
- {
- sched_finish_regroup_exact = 1000,
- sched_finish_pad_groups,
- sched_finish_none
- };
-
-/* Dispatch group termination caused by an insn. */
-enum group_termination
- {
- current_group,
- previous_group
- };
-
/* rs6000_select[0] is reserved for the default cpu defined via --with-cpu */
struct rs6000_cpu_select
{
extern struct rs6000_cpu_select rs6000_select[];
/* Debug support */
-extern const char *rs6000_debug_name; /* Name for -mdebug-xxxx option */
-extern int rs6000_debug_stack; /* debug stack applications */
-extern int rs6000_debug_arg; /* debug argument handling */
-extern int rs6000_debug_reg; /* debug register handling */
-extern int rs6000_debug_addr; /* debug memory addressing */
-extern int rs6000_debug_cost; /* debug rtx_costs */
-
-#define TARGET_DEBUG_STACK rs6000_debug_stack
-#define TARGET_DEBUG_ARG rs6000_debug_arg
-#define TARGET_DEBUG_REG rs6000_debug_reg
-#define TARGET_DEBUG_ADDR rs6000_debug_addr
-#define TARGET_DEBUG_COST rs6000_debug_cost
-
-extern const char *rs6000_traceback_name; /* Type of traceback table. */
-
-/* These are separate from target_flags because we've run out of bits
- there. */
-extern int rs6000_long_double_type_size;
-extern int rs6000_ieeequad;
-extern int rs6000_altivec_abi;
-extern int rs6000_spe_abi;
-extern int rs6000_spe;
-extern int rs6000_float_gprs;
-extern int rs6000_alignment_flags;
-extern const char *rs6000_sched_insert_nops_str;
-extern enum rs6000_nop_insertion rs6000_sched_insert_nops;
-extern int rs6000_xilinx_fpu;
-
-/* Describe which vector unit to use for a given machine mode. */
-enum rs6000_vector {
- VECTOR_NONE, /* Type is not a vector or not supported */
- VECTOR_ALTIVEC, /* Use altivec for vector processing */
- VECTOR_VSX, /* Use VSX for vector processing */
- VECTOR_PAIRED, /* Use paired floating point for vectors */
- VECTOR_SPE, /* Use SPE for vector processing */
- VECTOR_OTHER /* Some other vector unit */
-};
+#define MASK_DEBUG_STACK 0x01 /* debug stack applications */
+#define MASK_DEBUG_ARG 0x02 /* debug argument handling */
+#define MASK_DEBUG_REG 0x04 /* debug register handling */
+#define MASK_DEBUG_ADDR 0x08 /* debug memory addressing */
+#define MASK_DEBUG_COST 0x10 /* debug rtx codes */
+#define MASK_DEBUG_TARGET 0x20 /* debug target attribute/pragma */
+#define MASK_DEBUG_ALL (MASK_DEBUG_STACK \
+ | MASK_DEBUG_ARG \
+ | MASK_DEBUG_REG \
+ | MASK_DEBUG_ADDR \
+ | MASK_DEBUG_COST \
+ | MASK_DEBUG_TARGET)
+
+#define TARGET_DEBUG_STACK (rs6000_debug & MASK_DEBUG_STACK)
+#define TARGET_DEBUG_ARG (rs6000_debug & MASK_DEBUG_ARG)
+#define TARGET_DEBUG_REG (rs6000_debug & MASK_DEBUG_REG)
+#define TARGET_DEBUG_ADDR (rs6000_debug & MASK_DEBUG_ADDR)
+#define TARGET_DEBUG_COST (rs6000_debug & MASK_DEBUG_COST)
+#define TARGET_DEBUG_TARGET (rs6000_debug & MASK_DEBUG_TARGET)
extern enum rs6000_vector rs6000_vector_unit[];
#define TARGET_E500_DOUBLE 0
#define CHECK_E500_OPTIONS do { } while (0)
+/* ISA 2.01 allowed FCFID to be done in 32-bit, previously it was 64-bit only.
+ Enable 32-bit fcfid's on any of the switches for newer ISA machines or
+ XILINX. */
+#define TARGET_FCFID (TARGET_POWERPC64 \
+ || TARGET_POPCNTB /* ISA 2.02 */ \
+ || TARGET_CMPB /* ISA 2.05 */ \
+ || TARGET_POPCNTD /* ISA 2.06 */ \
+ || TARGET_XILINX_FPU)
+
+#define TARGET_FCTIDZ TARGET_FCFID
+#define TARGET_STFIWX TARGET_PPC_GFXOPT
+#define TARGET_LFIWAX TARGET_CMPB
+#define TARGET_LFIWZX TARGET_POPCNTD
+#define TARGET_FCFIDS TARGET_POPCNTD
+#define TARGET_FCFIDU TARGET_POPCNTD
+#define TARGET_FCFIDUS TARGET_POPCNTD
+#define TARGET_FCTIDUZ TARGET_POPCNTD
+#define TARGET_FCTIWUZ TARGET_POPCNTD
+
/* E500 processors only support plain "sync", not lwsync. */
#define TARGET_NO_LWSYNC TARGET_E500
#define RS6000_RECIP_HIGH_PRECISION_P(MODE) \
((MODE) == SFmode || (MODE) == V4SFmode || TARGET_RECIP_PRECISION)
-/* Sometimes certain combinations of command options do not make sense
- on a particular target machine. You can define a macro
- `OVERRIDE_OPTIONS' to take account of this. This macro, if
- defined, is executed once just after all the command options have
- been parsed.
-
- Do not use this macro to turn on various extra optimizations for
- `-O'. That is what `OPTIMIZATION_OPTIONS' is for.
-
- On the RS/6000 this is used to define the target cpu type. */
-
-#define OVERRIDE_OPTIONS rs6000_override_options (TARGET_CPU_DEFAULT)
-
-/* Define this to change the optimizations performed by default. */
-#define OPTIMIZATION_OPTIONS(LEVEL,SIZE) optimization_options(LEVEL,SIZE)
-
-/* Show we can debug even without a frame pointer. */
-#define CAN_DEBUG_WITHOUT_FP
+/* The default CPU for TARGET_OPTION_OVERRIDE. */
+#define OPTION_TARGET_CPU_DEFAULT TARGET_CPU_DEFAULT
/* Target pragma. */
#define REGISTER_TARGET_PRAGMAS() do { \
c_register_pragma (0, "longcall", rs6000_pragma_longcall); \
+ targetm.target_option.pragma_parse = rs6000_pragma_target_parse; \
targetm.resolve_overloaded_builtin = altivec_resolve_overloaded_builtin; \
} while (0)
#define HARD_REGNO_NREGS(REGNO, MODE) rs6000_hard_regno_nregs[(MODE)][(REGNO)]
+/* When setting up caller-save slots (MODE == VOIDmode) ensure we allocate
+ enough space to account for vectors in FP regs. */
+#define HARD_REGNO_CALLER_SAVE_MODE(REGNO, NREGS, MODE) \
+ (TARGET_VSX \
+ && ((MODE) == VOIDmode || VSX_VECTOR_MODE (MODE) \
+ || ALTIVEC_VECTOR_MODE (MODE)) \
+ && FP_REGNO_P (REGNO) \
+ ? V2DFmode \
+ : choose_hard_reg_mode ((REGNO), (NREGS), false))
+
#define HARD_REGNO_CALL_PART_CLOBBERED(REGNO, MODE) \
(((TARGET_32BIT && TARGET_POWERPC64 \
&& (GET_MODE_SIZE (MODE) > 4) \
#define PAIRED_VECTOR_MODE(MODE) \
((MODE) == V2SFmode)
-#define UNITS_PER_SIMD_WORD(MODE) \
- (TARGET_VSX ? UNITS_PER_VSX_WORD \
- : (TARGET_ALTIVEC ? UNITS_PER_ALTIVEC_WORD \
- : (TARGET_SPE ? UNITS_PER_SPE_WORD \
- : (TARGET_PAIRED_FLOAT ? UNITS_PER_PAIRED_WORD \
- : UNITS_PER_WORD))))
-
/* Value is TRUE if hard register REGNO can hold a value of
machine-mode MODE. */
#define HARD_REGNO_MODE_OK(REGNO, MODE) \
#define HARD_REGNO_RENAME_OK(SRC, DST) \
(! ALTIVEC_REGNO_P (DST) || df_regs_ever_live_p (DST))
-/* A C expression returning the cost of moving data from a register of class
- CLASS1 to one of CLASS2. */
-
-#define REGISTER_MOVE_COST rs6000_register_move_cost
-
-/* A C expressions returning the cost of moving data of MODE from a register to
- or from memory. */
-
-#define MEMORY_MOVE_COST rs6000_memory_move_cost
-
/* Specify the cost of a branch insn; roughly the number of extra insns that
should be added to avoid a branch.
#define FIXED_SCRATCH 0
-/* Define this macro to change register usage conditional on target
- flags. */
-
-#define CONDITIONAL_REGISTER_USAGE rs6000_conditional_register_usage ()
-
/* Specify the registers used for certain standard purposes.
The values of these macros are register numbers. */
{ 0xffffffff, 0xffffffff, 0xffffffff, 0x0003ffff } /* ALL_REGS */ \
}
-/* The following macro defines cover classes for Integrated Register
- Allocator. Cover classes is a set of non-intersected register
- classes covering all hard registers used for register allocation
- purpose. Any move between two registers of a cover class should be
- cheaper than load or store of the registers. The macro value is
- array of register classes with LIM_REG_CLASSES used as the end
- marker.
-
- We need two IRA_COVER_CLASSES, one for pre-VSX, and the other for VSX to
- account for the Altivec and Floating registers being subsets of the VSX
- register set. */
-
-#define IRA_COVER_CLASSES_PRE_VSX \
-{ \
- GENERAL_REGS, SPECIAL_REGS, FLOAT_REGS, ALTIVEC_REGS, /* VSX_REGS, */ \
- /* VRSAVE_REGS,*/ VSCR_REGS, SPE_ACC_REGS, SPEFSCR_REGS, \
- /* MQ_REGS, LINK_REGS, CTR_REGS, */ \
- CR_REGS, CA_REGS, LIM_REG_CLASSES \
-}
-
-#define IRA_COVER_CLASSES_VSX \
-{ \
- GENERAL_REGS, SPECIAL_REGS, /* FLOAT_REGS, ALTIVEC_REGS, */ VSX_REGS, \
- /* VRSAVE_REGS,*/ VSCR_REGS, SPE_ACC_REGS, SPEFSCR_REGS, \
- /* MQ_REGS, LINK_REGS, CTR_REGS, */ \
- CR_REGS, CA_REGS, LIM_REG_CLASSES \
-}
-
/* The same information, inverted:
Return the class number of the smallest class containing
reg number REGNO. This could be a conditional expression
/* Stack layout; function entry, exit and calling. */
-/* Enumeration to give which calling sequence to use. */
-enum rs6000_abi {
- ABI_NONE,
- ABI_AIX, /* IBM's AIX */
- ABI_V4, /* System V.4/eabi */
- ABI_DARWIN /* Apple's Darwin (OS X kernel) */
-};
-
-extern enum rs6000_abi rs6000_current_abi; /* available for use by subtarget */
-
/* Define this if pushing a word on the stack
makes the stack pointer a smaller address. */
#define STACK_GROWS_DOWNWARD
found in the variable crtl->outgoing_args_size. */
#define ACCUMULATE_OUTGOING_ARGS 1
-/* 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),
- FUNTYPE is the data type of the function (as a tree),
- or for a library call it is an identifier node for the subroutine name.
- SIZE is the number of bytes of arguments passed on the stack. */
-
-#define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) 0
-
/* Define how to find the value returned by a library function
assuming the value has mode MODE. */
int sysv_gregno; /* next available GP register */
int intoffset; /* running offset in struct (darwin64) */
int use_stack; /* any part of struct on stack (darwin64) */
+ int floats_in_gpr; /* count of SFmode floats taking up
+ GPR space (darwin64) */
int named; /* false for varargs params */
+ int escapes; /* if function visible outside tu */
} CUMULATIVE_ARGS;
/* Initialize a variable CUM of type CUMULATIVE_ARGS
for a call to a function whose data type is FNTYPE.
For a library call, FNTYPE is 0. */
-#define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \
- init_cumulative_args (&CUM, FNTYPE, LIBNAME, FALSE, FALSE, N_NAMED_ARGS)
+#define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, FNDECL, N_NAMED_ARGS) \
+ init_cumulative_args (&CUM, FNTYPE, LIBNAME, FALSE, FALSE, \
+ N_NAMED_ARGS, FNDECL, VOIDmode)
/* Similar, but when scanning the definition of a procedure. We always
set NARGS_PROTOTYPE large so we never return an EXPR_LIST. */
#define INIT_CUMULATIVE_INCOMING_ARGS(CUM, FNTYPE, LIBNAME) \
- init_cumulative_args (&CUM, FNTYPE, LIBNAME, TRUE, FALSE, 1000)
+ init_cumulative_args (&CUM, FNTYPE, LIBNAME, TRUE, FALSE, \
+ 1000, current_function_decl, VOIDmode)
/* Like INIT_CUMULATIVE_ARGS' but only used for outgoing libcalls. */
#define INIT_CUMULATIVE_LIBCALL_ARGS(CUM, MODE, LIBNAME) \
- init_cumulative_args (&CUM, NULL_TREE, LIBNAME, FALSE, TRUE, 0)
-
-/* 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.) */
-
-#define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \
- function_arg_advance (&CUM, MODE, TYPE, NAMED, 0)
-
-/* Determine where to put an argument to a function.
- Value is zero to push the argument on the stack,
- or a hard register in which to store the argument.
-
- MODE is the argument's machine mode.
- TYPE is the data type of the argument (as a tree).
- This is null for libcalls where that information may
- not be available.
- CUM is a variable of type CUMULATIVE_ARGS which gives info about
- the preceding args and about the function being called.
- NAMED is nonzero if this argument is a named parameter
- (otherwise it is an extra parameter matching an ellipsis).
-
- On RS/6000 the first eight words of non-FP are normally in registers
- and the rest are pushed. The first 13 FP args are in registers.
-
- If this is floating-point and no prototype is specified, we use
- both an FP and integer register (or possibly FP reg and stack). Library
- functions (when TYPE is zero) always have the proper types for args,
- so we can pass the FP value just in one register. emit_library_function
- doesn't support EXPR_LIST anyway. */
-
-#define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \
- function_arg (&CUM, MODE, TYPE, NAMED)
+ init_cumulative_args (&CUM, NULL_TREE, LIBNAME, FALSE, TRUE, \
+ 0, NULL_TREE, MODE)
/* If defined, a C expression which determines whether, and in which
direction, to pad out an argument with extra space. The value
#define FUNCTION_ARG_PADDING(MODE, TYPE) function_arg_padding (MODE, TYPE)
-/* If defined, a C expression that gives the alignment boundary, in bits,
- of an argument with the specified mode and type. If it is not defined,
- PARM_BOUNDARY is used for all arguments. */
-
-#define FUNCTION_ARG_BOUNDARY(MODE, TYPE) \
- function_arg_boundary (MODE, TYPE)
-
#define PAD_VARARGS_DOWN \
(FUNCTION_ARG_PADDING (TYPE_MODE (type), type) == downward)
if ((LOG) != 0) \
fprintf (FILE, "\t.align %d\n", (LOG))
+/* How to align the given loop. */
+#define LOOP_ALIGN(LABEL) rs6000_loop_align(LABEL)
+
/* Pick up the return address upon entry to a procedure. Used for
dwarf2 unwind information. This also enables the table driven
mechanism. */
#define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address (FILE, ADDR)
-#define OUTPUT_ADDR_CONST_EXTRA(STREAM, X, FAIL) \
- do \
- if (!rs6000_output_addr_const_extra (STREAM, X)) \
- goto FAIL; \
- while (0)
-
/* uncomment for disabling the corresponding default options */
/* #define MACHINE_no_sched_interblock */
/* #define MACHINE_no_sched_speculative */
/* #define MACHINE_no_sched_speculative_load */
/* General flags. */
-extern int flag_pic;
-extern int optimize;
-extern int flag_expensive_optimizations;
extern int frame_pointer_needed;
/* Classification of the builtin functions to properly set the declaration tree
RS6000_BTI_pixel_V8HI, /* __vector __pixel */
RS6000_BTI_long, /* long_integer_type_node */
RS6000_BTI_unsigned_long, /* long_unsigned_type_node */
+ RS6000_BTI_long_long, /* long_long_integer_type_node */
+ RS6000_BTI_unsigned_long_long, /* long_long_unsigned_type_node */
RS6000_BTI_INTQI, /* intQI_type_node */
RS6000_BTI_UINTQI, /* unsigned_intQI_type_node */
RS6000_BTI_INTHI, /* intHI_type_node */
#define bool_V2DI_type_node (rs6000_builtin_types[RS6000_BTI_bool_V2DI])
#define pixel_V8HI_type_node (rs6000_builtin_types[RS6000_BTI_pixel_V8HI])
+#define long_long_integer_type_internal_node (rs6000_builtin_types[RS6000_BTI_long_long])
+#define long_long_unsigned_type_internal_node (rs6000_builtin_types[RS6000_BTI_unsigned_long_long])
#define long_integer_type_internal_node (rs6000_builtin_types[RS6000_BTI_long])
#define long_unsigned_type_internal_node (rs6000_builtin_types[RS6000_BTI_unsigned_long])
#define intQI_type_internal_node (rs6000_builtin_types[RS6000_BTI_INTQI])
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