diff options
Diffstat (limited to 'libgcc/config/i386/32/sfp-machine.h')
| -rw-r--r-- | libgcc/config/i386/32/sfp-machine.h | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/libgcc/config/i386/32/sfp-machine.h b/libgcc/config/i386/32/sfp-machine.h index 1600a7fe2c7..6d4e5e17912 100644 --- a/libgcc/config/i386/32/sfp-machine.h +++ b/libgcc/config/i386/32/sfp-machine.h @@ -3,11 +3,6 @@ #define _FP_WS_TYPE signed int #define _FP_I_TYPE int -/* 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_FRAC_ADD_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \ __asm__ ("add{l} {%11,%3|%3,%11}\n\t" \ "adc{l} {%9,%2|%2,%9}\n\t" \ @@ -85,122 +80,3 @@ typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__))); #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__ ("fdiv {%y0, %0|%0, %y0}" : "+t" (f)); \ - __asm__ __volatile__ ("fwait"); \ - } \ - if (_fex & FP_EX_DIVZERO) \ - { \ - float f = 1.0, g = 0.0; \ - __asm__ __volatile__ ("fdivp {%0, %y1|%y1, %0}" \ - : "+t" (f) : "u" (g) \ - : "st(1)"); \ - __asm__ __volatile__ ("fwait"); \ - } \ - 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); } -#else -# define strong_alias(name, aliasname) _strong_alias(name, aliasname) -# define _strong_alias(name, aliasname) \ - extern __typeof (name) aliasname __attribute__ ((alias (#name))); -#endif |