mirror of
https://github.com/gcc-mirror/gcc.git
synced 2024-11-21 13:40:47 +00:00
21c9fd9688
My earlier libquadmath change apparently broke mingw32 build, while on Linux <bits/endian.h> is included and defines these, on Mingw apparently that isn't the case, while soft-fp wants a guarantee that sfp-machine.h defines these. 2024-04-09 Jakub Jelinek <jakub@redhat.com> * sfp-machine.h (__LITTLE_ENDIAN, __BIG_ENDIAN, __BYTE_ORDER): Define if __BYTE_ORDER isn't defined.
60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
/* libquadmath uses soft-fp only for sqrtq and only for
|
|
the positive finite case, so it doesn't care about
|
|
NaN representation, nor tininess after rounding vs.
|
|
before rounding, all it cares about is current rounding
|
|
mode and raising inexact exceptions. */
|
|
#if __SIZEOF_LONG__ == 8
|
|
#define _FP_W_TYPE_SIZE 64
|
|
#define _FP_I_TYPE long long
|
|
#define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0
|
|
#else
|
|
#define _FP_W_TYPE_SIZE 32
|
|
#define _FP_I_TYPE int
|
|
#define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0, 0, 0
|
|
#endif
|
|
#define _FP_W_TYPE unsigned _FP_I_TYPE
|
|
#define _FP_WS_TYPE signed _FP_I_TYPE
|
|
#define _FP_QNANNEGATEDP 0
|
|
#define _FP_NANSIGN_Q 1
|
|
#define _FP_KEEPNANFRACP 1
|
|
#define _FP_TININESS_AFTER_ROUNDING 0
|
|
#ifndef __BYTE_ORDER
|
|
#define __LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__
|
|
#define __BIG_ENDIAN __ORDER_BIG_ENDIAN__
|
|
#define __BYTE_ORDER __BYTE_ORDER__
|
|
#endif
|
|
#define _FP_DECL_EX \
|
|
unsigned int fp_roundmode __attribute__ ((unused)) = FP_RND_NEAREST;
|
|
#define FP_ROUNDMODE fp_roundmode
|
|
#define FP_INIT_ROUNDMODE \
|
|
do \
|
|
{ \
|
|
switch (fegetround ()) \
|
|
{ \
|
|
case FE_UPWARD: \
|
|
fp_roundmode = FP_RND_PINF; \
|
|
break; \
|
|
case FE_DOWNWARD: \
|
|
fp_roundmode = FP_RND_MINF; \
|
|
break; \
|
|
case FE_TOWARDZERO: \
|
|
fp_roundmode = FP_RND_ZERO; \
|
|
break; \
|
|
default: \
|
|
break; \
|
|
} \
|
|
} \
|
|
while (0)
|
|
#define FP_HANDLE_EXCEPTIONS \
|
|
do \
|
|
{ \
|
|
if (_fex & FP_EX_INEXACT) \
|
|
{ \
|
|
volatile double eight = 8.0; \
|
|
volatile double eps \
|
|
= DBL_EPSILON; \
|
|
eight += eps; \
|
|
} \
|
|
} \
|
|
while (0)
|