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| author | Keith Packard via Newlib <newlib@sourceware.org> | 2020-08-08 15:34:12 -0700 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2020-08-10 21:01:46 +0200 |
| commit | 0c1989070ee1d849c7a25ad2eb6c8e3fb1df6393 (patch) | |
| tree | 1acbfbf1b4a6a0a7beef9cc9590eb67b3d44f4e5 /newlib | |
| parent | 432b331c79a379ef92635fc173b4689b6d5b3feb (diff) | |
| download | newlib-0c1989070ee1d849c7a25ad2eb6c8e3fb1df6393.zip newlib-0c1989070ee1d849c7a25ad2eb6c8e3fb1df6393.tar.gz newlib-0c1989070ee1d849c7a25ad2eb6c8e3fb1df6393.tar.bz2 | |
libm: Detect fast fmaf support
Anything with fast FMA is assumed to have fast FMAF, along with
32-bit arms that advertise 32-bit FP support and __ARM_FEATURE_FMA
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'newlib')
| -rw-r--r-- | newlib/libm/common/math_config.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/newlib/libm/common/math_config.h b/newlib/libm/common/math_config.h index df8f8d6..e7a8bb7 100644 --- a/newlib/libm/common/math_config.h +++ b/newlib/libm/common/math_config.h @@ -79,6 +79,14 @@ # endif #endif +#ifndef HAVE_FAST_FMAF +# if HAVE_FAST_FMA || (__ARM_FEATURE_FMA && (__ARM_FP & 4)) +# define HAVE_FAST_FMAF 1 +# else +# define HAVE_FAST_FMAF 0 +# endif +#endif + #if HAVE_FAST_ROUND /* When set, the roundtoint and converttoint functions are provided with the semantics documented below. */ |