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| author | Aurelien Jarno <aurelien@aurel32.net> | 2016-07-31 23:45:52 +0200 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2016-08-03 13:35:22 +0200 |
| commit | bdf20beac183c705abef5aef8de2db5fac00bc8b (patch) | |
| tree | 85346cf83298702d3a4c3c5874918c671ea51427 /sysdeps/ieee754 | |
| parent | 3ef3f1b93fdf20143865cc16dd75f39a7f0fac2f (diff) | |
| download | glibc-bdf20beac183c705abef5aef8de2db5fac00bc8b.zip glibc-bdf20beac183c705abef5aef8de2db5fac00bc8b.tar.gz glibc-bdf20beac183c705abef5aef8de2db5fac00bc8b.tar.bz2 | |
sparc64: add a VIS3 version of ceil, floor and trunc
sparc64 passes floating point values in the floating point registers.
As the the generic ceil, floor and trunc functions use integer
instructions, it makes sense to provide a VIS3 version consisting in
the the generic version compiled with -mvis3. GCC will then use
movdtox, movxtod, movwtos and movstow instructions.
sparc32 passes the floating point values in the integer registers, so it
doesn't make sense to do the same.
Changelog:
* sysdeps/ieee754/dbl-64/s_trunc.c: Avoid alias renamed.
* sysdeps/ieee754/dbl-64/wordsize-64/s_trunc.c: Likewise.
* sysdeps/ieee754/flt-32/s_truncf.c: Likewise.
* sysdeps/sparc/sparc64/fpu/multiarch/Makefile
[$(subdir) = math && $(have-as-vis3) = yes] (libm-sysdep_routines):
Add s_ceilf-vis3, s_ceil-vis3, s_floorf-vis3, s_floor-vis3,
s_truncf-vis3, s_trunc-vis3.
(CFLAGS-s_ceilf-vis3.c): New. Set to -Wa,-Av9d -mvis3.
(CFLAGS-s_ceil-vis3.c): Likewise.
(CFLAGS-s_floorf-vis3.c): Likewise.
(CFLAGS-s_floor-vis3.c): Likewise.
(CFLAGS-s_truncf-vis3.c): Likewise.
(CFLAGS-s_trunc-vis3.c): Likewise.
* sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-vis3.c: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_ceil.c: Likewise.
* sysdeps/sparc/sparc64/fpu/multiarch/s_ceilf-vis3.c: Likewise.
* sysdeps/sparc/sparc64/fpu/multiarch/s_ceilf.c: Likewise.
* sysdeps/sparc/sparc64/fpu/multiarch/s_floor-vis3.c: Likewise.
* sysdeps/sparc/sparc64/fpu/multiarch/s_floor.c: Likewise.
* sysdeps/sparc/sparc64/fpu/multiarch/s_floorf-vis3.c: Likewise.
* sysdeps/sparc/sparc64/fpu/multiarch/s_floorf.c: Likewise.
* sysdeps/sparc/sparc64/fpu/multiarch/s_trunc-vis3.c: Likewise.
* sysdeps/sparc/sparc64/fpu/multiarch/s_trunc.c: Likewise.
* sysdeps/sparc/sparc64/fpu/multiarch/s_truncf-vis3.c: Likewise.
* sysdeps/sparc/sparc64/fpu/multiarch/s_truncf.c: Likewise.
Diffstat (limited to 'sysdeps/ieee754')
| -rw-r--r-- | sysdeps/ieee754/dbl-64/s_trunc.c | 4 | ||||
| -rw-r--r-- | sysdeps/ieee754/dbl-64/wordsize-64/s_trunc.c | 4 | ||||
| -rw-r--r-- | sysdeps/ieee754/flt-32/s_truncf.c | 2 |
3 files changed, 8 insertions, 2 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_trunc.c b/sysdeps/ieee754/dbl-64/s_trunc.c index f64e097..7663f61 100644 --- a/sysdeps/ieee754/dbl-64/s_trunc.c +++ b/sysdeps/ieee754/dbl-64/s_trunc.c @@ -53,8 +53,10 @@ __trunc (double x) return x; } +#ifndef __trunc weak_alias (__trunc, trunc) -#ifdef NO_LONG_DOUBLE +# ifdef NO_LONG_DOUBLE strong_alias (__trunc, __truncl) weak_alias (__trunc, truncl) +# endif #endif diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/s_trunc.c b/sysdeps/ieee754/dbl-64/wordsize-64/s_trunc.c index 81ac55e..f961e52 100644 --- a/sysdeps/ieee754/dbl-64/wordsize-64/s_trunc.c +++ b/sysdeps/ieee754/dbl-64/wordsize-64/s_trunc.c @@ -48,8 +48,10 @@ __trunc (double x) return x; } +#ifndef __trunc weak_alias (__trunc, trunc) -#ifdef NO_LONG_DOUBLE +# ifdef NO_LONG_DOUBLE strong_alias (__trunc, __truncl) weak_alias (__trunc, truncl) +# endif #endif diff --git a/sysdeps/ieee754/flt-32/s_truncf.c b/sysdeps/ieee754/flt-32/s_truncf.c index 43d35c7..5228ec6 100644 --- a/sysdeps/ieee754/flt-32/s_truncf.c +++ b/sysdeps/ieee754/flt-32/s_truncf.c @@ -48,4 +48,6 @@ __truncf (float x) return x; } +#ifndef __truncf weak_alias (__truncf, truncf) +#endif |