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| author | Xiaolin Tang <tangxiaolin@loongson.cn> | 2022-11-07 22:05:16 +0800 |
|---|---|---|
| committer | caiyinyu <caiyinyu@loongson.cn> | 2022-11-14 10:02:41 +0800 |
| commit | 5fe2647d3168194f3534bbf1c02930c891a25977 (patch) | |
| tree | f06eb4d10315e86e87335375d2f18b68e40ac9aa /sysdeps/loongarch/fpu_control.h | |
| parent | 56da6a073daaf86a7044df22b8778e913db5099c (diff) | |
| download | glibc-5fe2647d3168194f3534bbf1c02930c891a25977.tar.gz glibc-5fe2647d3168194f3534bbf1c02930c891a25977.tar.xz glibc-5fe2647d3168194f3534bbf1c02930c891a25977.zip | |
LoongArch: Hard Float Support for float-point classification functions.
Use hardware Floating-point instruction fclass.{s/d} to implement
classification functions, i.e finite{f/ }, fpclassify{f/ }, isnan{f/ },
isinf{f/ }, issignaling{f/ }.
* sysdeps/loongarch/fpu/s_finite.c: New file.
* sysdeps/loongarch/fpu/s_finitef.c: Likewise.
* sysdeps/loongarch/fpu/s_fpclassify.c: Likewise.
* sysdeps/loongarch/fpu/s_fpclassifyf.c: Likewise.
* sysdeps/loongarch/fpu/s_isinf.c: Likewise.
* sysdeps/loongarch/fpu/s_isinff.c: Likewise.
* sysdeps/loongarch/fpu/s_isnan.c: Likewise.
* sysdeps/loongarch/fpu/s_isnanf.c: Likewise.
* sysdeps/loongarch/fpu/s_issignaling.c: Likewise.
* sysdeps/loongarch/fpu/s_issignalingf.c: Likewise.
* sysdeps/loongarch/fpu_control.h: Add _FCLASS_* macro.
Diffstat (limited to 'sysdeps/loongarch/fpu_control.h')
| -rw-r--r-- | sysdeps/loongarch/fpu_control.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/sysdeps/loongarch/fpu_control.h b/sysdeps/loongarch/fpu_control.h index f482395dba..13436335fe 100644 --- a/sysdeps/loongarch/fpu_control.h +++ b/sysdeps/loongarch/fpu_control.h @@ -97,6 +97,23 @@ extern void __loongarch_fpu_setcw (fpu_control_t) __THROW; /* Default control word set at startup. */ extern fpu_control_t __fpu_control; +# define _FCLASS_SNAN (1 << 0) +# define _FCLASS_QNAN (1 << 1) +# define _FCLASS_MINF (1 << 2) +# define _FCLASS_MNORM (1 << 3) +# define _FCLASS_MSUBNORM (1 << 4) +# define _FCLASS_MZERO (1 << 5) +# define _FCLASS_PINF (1 << 6) +# define _FCLASS_PNORM (1 << 7) +# define _FCLASS_PSUBNORM (1 << 8) +# define _FCLASS_PZERO (1 << 9) + +# define _FCLASS_ZERO (_FCLASS_MZERO | _FCLASS_PZERO) +# define _FCLASS_SUBNORM (_FCLASS_MSUBNORM | _FCLASS_PSUBNORM) +# define _FCLASS_NORM (_FCLASS_MNORM | _FCLASS_PNORM) +# define _FCLASS_INF (_FCLASS_MINF | _FCLASS_PINF) +# define _FCLASS_NAN (_FCLASS_SNAN | _FCLASS_QNAN) + #endif /* __loongarch_soft_float */ #endif /* fpu_control.h */ |