diff options
Diffstat (limited to 'gcc/config/mips/mips.h')
| -rw-r--r-- | gcc/config/mips/mips.h | 69 |
1 files changed, 61 insertions, 8 deletions
diff --git a/gcc/config/mips/mips.h b/gcc/config/mips/mips.h index 3b784c8883d..4a355ba1943 100644 --- a/gcc/config/mips/mips.h +++ b/gcc/config/mips/mips.h @@ -1,6 +1,6 @@ /* Definitions of target machine for GNU compiler. MIPS version. Copyright (C) 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998 - 1999, 2000, 2001, 2002 Free Software Foundation, Inc. + 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. Contributed by A. Lichnewsky (lich@inria.inria.fr). Changed by Michael Meissner (meissner@osf.org). 64 bit r4000 support by Ian Lance Taylor (ian@cygnus.com) and @@ -1487,8 +1487,14 @@ do { \ the next available register. */ #define FP_INC (TARGET_FLOAT64 || TARGET_SINGLE_FLOAT ? 1 : 2) -/* The largest size of value that can be held in floating-point registers. */ -#define UNITS_PER_FPVALUE (TARGET_SOFT_FLOAT ? 0 : FP_INC * UNITS_PER_FPREG) +/* The largest size of value that can be held in floating-point + registers and moved with a single instruction. */ +#define UNITS_PER_HWFPVALUE (TARGET_SOFT_FLOAT ? 0 : FP_INC * UNITS_PER_FPREG) + +/* The largest size of value that can be held in floating-point + registers. */ +#define UNITS_PER_FPVALUE \ + (TARGET_SOFT_FLOAT ? 0 : (LONG_DOUBLE_TYPE_SIZE / BITS_PER_UNIT)) /* The number of bytes in a double. */ #define UNITS_PER_DOUBLE (TYPE_PRECISION (double_type_node) / BITS_PER_UNIT) @@ -1535,7 +1541,21 @@ do { \ /* A C expression for the size in bits of the type `long double' on the target machine. If you don't define this, the default is two words. */ -#define LONG_DOUBLE_TYPE_SIZE 64 +#define LONG_DOUBLE_TYPE_SIZE \ + (mips_abi == ABI_N32 || mips_abi == ABI_64 ? 128 : 64) + +/* long double is not a fixed mode, but the idea is that, if we + support long double, we also want a 128-bit integer type. */ +#define MAX_FIXED_MODE_SIZE LONG_DOUBLE_TYPE_SIZE + +#ifdef IN_LIBGCC2 +#if (defined _ABIN32 && _MIPS_SIM == _ABIN32) \ + || (defined _ABI64 && _MIPS_SIM == _ABI64) +# define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128 +# else +# define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64 +# endif +#endif /* Width in bits of a pointer. See also the macro `Pmode' defined below. */ @@ -1562,7 +1582,7 @@ do { \ #define STRUCTURE_SIZE_BOUNDARY 8 /* There is no point aligning anything to a rounder boundary than this. */ -#define BIGGEST_ALIGNMENT 64 +#define BIGGEST_ALIGNMENT LONG_DOUBLE_TYPE_SIZE /* Set this nonzero if move instructions will actually fail to work when given unaligned data. */ @@ -2326,8 +2346,8 @@ extern enum reg_class mips_char_to_class[256]; #define CLASS_MAX_NREGS(CLASS, MODE) mips_class_max_nregs (CLASS, MODE) -#define CANNOT_CHANGE_MODE_CLASS(FROM, TO) \ - mips_cannot_change_mode_class (FROM, TO) +#define CANNOT_CHANGE_MODE_CLASS(FROM, TO, CLASS) \ + mips_cannot_change_mode_class (FROM, TO, CLASS) /* Stack layout; function entry, exit and calling. */ @@ -2624,7 +2644,9 @@ extern enum reg_class mips_char_to_class[256]; On the MIPS, R2 R3 and F0 F2 are the only register thus used. Currently, R2 and F0 are only implemented here (C has no complex type) */ -#define FUNCTION_VALUE_REGNO_P(N) ((N) == GP_RETURN || (N) == FP_RETURN) +#define FUNCTION_VALUE_REGNO_P(N) ((N) == GP_RETURN || (N) == FP_RETURN \ + || (LONG_DOUBLE_TYPE_SIZE == 128 && FP_RETURN != GP_RETURN \ + && (N) == FP_RETURN + 2)) /* 1 if N is a possible register number for function argument passing. We have no FP argument registers when soft-float. When FP registers @@ -4663,3 +4685,34 @@ while (0) /* Generate calls to memcpy, etc., not bcopy, etc. */ #define TARGET_MEM_FUNCTIONS + +#ifndef __mips16 +/* Since the bits of the _init and _fini function is spread across + many object files, each potentially with its own GP, we must assume + we need to load our GP. We don't preserve $gp or $ra, since each + init/fini chunk is supposed to initialize $gp, and crti/crtn + already take care of preserving $ra and, when appropriate, $gp. */ +#if _MIPS_SIM == _MIPS_SIM_ABI32 +#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \ + asm (SECTION_OP "\n\ + .set noreorder\n\ + bal 1f\n\ + nop\n\ +1: .cpload $31\n\ + .set reorder\n\ + jal " USER_LABEL_PREFIX #FUNC "\n\ + " TEXT_SECTION_ASM_OP); +#endif /* Switch to #elif when we're no longer limited by K&R C. */ +#if (defined _ABIN32 && _MIPS_SIM == _ABIN32) \ + || (defined _ABI64 && _MIPS_SIM == _ABI64) +#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \ + asm (SECTION_OP "\n\ + .set noreorder\n\ + bal 1f\n\ + nop\n\ +1: .set reorder\n\ + .cpsetup $31, $2, 1b\n\ + jal " USER_LABEL_PREFIX #FUNC "\n\ + " TEXT_SECTION_ASM_OP); +#endif +#endif |