diff options
Diffstat (limited to 'gcc/config/i386/sfp-machine.h')
| -rw-r--r-- | gcc/config/i386/sfp-machine.h | 144 |
1 files changed, 3 insertions, 141 deletions
diff --git a/gcc/config/i386/sfp-machine.h b/gcc/config/i386/sfp-machine.h index 190e3cb0e81..f2df869653f 100644 --- a/gcc/config/i386/sfp-machine.h +++ b/gcc/config/i386/sfp-machine.h @@ -1,143 +1,5 @@ -#define _FP_W_TYPE_SIZE 64 -#define _FP_W_TYPE unsigned long -#define _FP_WS_TYPE signed long -#define _FP_I_TYPE long - -typedef int TItype __attribute__ ((mode (TI))); -typedef unsigned int UTItype __attribute__ ((mode (TI))); - -#define TI_BITS (__CHAR_BIT__ * (int)sizeof(TItype)) - -/* The type of the result of a floating point comparison. This must - match `__libgcc_cmp_return__' in GCC for the target. */ -typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__))); -#define CMPtype __gcc_CMPtype - -#define _FP_MUL_MEAT_Q(R,X,Y) \ - _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) - -#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y) - -#define _FP_NANFRAC_S _FP_QNANBIT_S -#define _FP_NANFRAC_D _FP_QNANBIT_D -#define _FP_NANFRAC_E _FP_QNANBIT_E, 0 -#define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0 -#define _FP_NANSIGN_S 1 -#define _FP_NANSIGN_D 1 -#define _FP_NANSIGN_E 1 -#define _FP_NANSIGN_Q 1 - -#define _FP_KEEPNANFRACP 1 - -/* Here is something Intel misdesigned: the specs don't define - the case where we have two NaNs with same mantissas, but - different sign. Different operations pick up different NaNs. */ -#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ - do { \ - if (_FP_FRAC_GT_##wc(X, Y) \ - || (_FP_FRAC_EQ_##wc(X,Y) && (OP == '+' || OP == '*'))) \ - { \ - R##_s = X##_s; \ - _FP_FRAC_COPY_##wc(R,X); \ - } \ - else \ - { \ - R##_s = Y##_s; \ - _FP_FRAC_COPY_##wc(R,Y); \ - } \ - R##_c = FP_CLS_NAN; \ - } while (0) - -#define FP_EX_INVALID 0x01 -#define FP_EX_DENORM 0x02 -#define FP_EX_DIVZERO 0x04 -#define FP_EX_OVERFLOW 0x08 -#define FP_EX_UNDERFLOW 0x10 -#define FP_EX_INEXACT 0x20 - -struct fenv -{ - unsigned short int __control_word; - unsigned short int __unused1; - unsigned short int __status_word; - unsigned short int __unused2; - unsigned short int __tags; - unsigned short int __unused3; - unsigned int __eip; - unsigned short int __cs_selector; - unsigned int __opcode:11; - unsigned int __unused4:5; - unsigned int __data_offset; - unsigned short int __data_selector; - unsigned short int __unused5; -}; - -#define FP_HANDLE_EXCEPTIONS \ - do { \ - if (_fex & FP_EX_INVALID) \ - { \ - float f = 0.0; \ - __asm__ __volatile__ ("divss %0, %0 " : : "x" (f)); \ - } \ - if (_fex & FP_EX_DIVZERO) \ - { \ - float f = 1.0, g = 0.0; \ - __asm__ __volatile__ ("divss %1, %0" : : "x" (f), "x" (g)); \ - } \ - if (_fex & FP_EX_OVERFLOW) \ - { \ - struct fenv temp; \ - __asm__ __volatile__ ("fnstenv %0" : "=m" (temp)); \ - temp.__status_word |= FP_EX_OVERFLOW; \ - __asm__ __volatile__ ("fldenv %0" : : "m" (temp)); \ - __asm__ __volatile__ ("fwait"); \ - } \ - if (_fex & FP_EX_UNDERFLOW) \ - { \ - struct fenv temp; \ - __asm__ __volatile__ ("fnstenv %0" : "=m" (temp)); \ - temp.__status_word |= FP_EX_UNDERFLOW; \ - __asm__ __volatile__ ("fldenv %0" : : "m" (temp)); \ - __asm__ __volatile__ ("fwait"); \ - } \ - if (_fex & FP_EX_INEXACT) \ - { \ - struct fenv temp; \ - __asm__ __volatile__ ("fnstenv %0" : "=m" (temp)); \ - temp.__status_word |= FP_EX_INEXACT; \ - __asm__ __volatile__ ("fldenv %0" : : "m" (temp)); \ - __asm__ __volatile__ ("fwait"); \ - } \ - } while (0) - -#define FP_RND_NEAREST 0 -#define FP_RND_ZERO 0xc00 -#define FP_RND_PINF 0x800 -#define FP_RND_MINF 0x400 - -#define _FP_DECL_EX \ - unsigned short _fcw __attribute__ ((unused)) = FP_RND_NEAREST - -#define FP_INIT_ROUNDMODE \ - do { \ - __asm__ ("fnstcw %0" : "=m" (_fcw)); \ - } while (0) - -#define FP_ROUNDMODE (_fcw & 0xc00) - -#define __LITTLE_ENDIAN 1234 -#define __BIG_ENDIAN 4321 - -#define __BYTE_ORDER __LITTLE_ENDIAN - -/* Define ALIASNAME as a strong alias for NAME. */ -#if defined __MACH__ -/* Mach-O doesn't support aliasing. If these functions ever return - anything but CMPtype we need to revisit this... */ -#define strong_alias(name, aliasname) \ - CMPtype aliasname (TFtype a, TFtype b) { return name(a, b); } +#ifdef __x86_64__ +#include "config/i386/64/sfp-machine.h" #else -# define strong_alias(name, aliasname) _strong_alias(name, aliasname) -# define _strong_alias(name, aliasname) \ - extern __typeof (name) aliasname __attribute__ ((alias (#name))); +#include "config/i386/32/sfp-machine.h" #endif |