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| author | Andrew Senkevich <andrew.senkevich@intel.com> | 2015-12-07 21:58:26 +0300 |
|---|---|---|
| committer | Andrew Senkevich <andrew.senkevich@intel.com> | 2015-12-07 21:58:26 +0300 |
| commit | 377ed004f2c5b498e0620426a0af447172351f35 (patch) | |
| tree | fef8d735932661766b531d2daac7d229ffdee061 | |
| parent | 5d1d4918eebdaaf0ab0a5baf28c502c32c21f12e (diff) | |
| download | glibc-377ed004f2c5b498e0620426a0af447172351f35.tar.gz glibc-377ed004f2c5b498e0620426a0af447172351f35.tar.xz glibc-377ed004f2c5b498e0620426a0af447172351f35.zip | |
Utilize x86_64 vector math functions w/o -fopenmp.
This patch allows to use x86_64 vector math functions with GCC 6.*
without OpenMP SIMD constructs. For additional details please visit
<https://sourceware.org/glibc/wiki/libmvec#Example_2>.
* sysdeps/x86/fpu/bits/math-vector.h: W/o -fopenmp declare vector math
functions with GCC 6.* __attribute__ ((__simd__)).
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | sysdeps/x86/fpu/bits/math-vector.h | 6 |
2 files changed, 11 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 379ba75ee1..7d9622b0ba 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2015-12-07 Andrew Senkevich <andrew.senkevich@intel.com> + + * sysdeps/x86/fpu/bits/math-vector.h: W/o -fopenmp use GCC 6.* + __attribute__ ((__simd__)) for vector math function declarations. + 2015-12-04 Paul Eggert <eggert@cs.ucla.edu> Fix typo in strncat, wcsncat manual entries diff --git a/sysdeps/x86/fpu/bits/math-vector.h b/sysdeps/x86/fpu/bits/math-vector.h index f3bfb869d4..495e895df9 100644 --- a/sysdeps/x86/fpu/bits/math-vector.h +++ b/sysdeps/x86/fpu/bits/math-vector.h @@ -28,6 +28,12 @@ # if defined _OPENMP && _OPENMP >= 201307 /* OpenMP case. */ # define __DECL_SIMD_x86_64 _Pragma ("omp declare simd notinbranch") +# elif __GNUC_PREREQ (6,0) +/* W/o OpenMP use GCC 6.* __attribute__ ((__simd__)). */ +# define __DECL_SIMD_x86_64 __attribute__ ((__simd__ ("notinbranch"))) +# endif + +# ifdef __DECL_SIMD_x86_64 # undef __DECL_SIMD_cos # define __DECL_SIMD_cos __DECL_SIMD_x86_64 # undef __DECL_SIMD_cosf |