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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-03-10 14:48:44 -0300 |
|---|---|---|
| committer | Pranav Kant <prka@google.com> | 2023-09-27 19:03:26 +0000 |
| commit | aacd7e0eb6429854f6133bea49c1c4938ff30608 (patch) | |
| tree | d7ed18c576dbe2c5ead60786f6e6c58189234884 | |
| parent | fe59db4d1bb6e1030cfb95fa800503191ad4c4e8 (diff) | |
| download | glibc-aacd7e0eb6429854f6133bea49c1c4938ff30608.zip glibc-aacd7e0eb6429854f6133bea49c1c4938ff30608.tar.gz glibc-aacd7e0eb6429854f6133bea49c1c4938ff30608.tar.bz2 | |
math: x86: Use prefix for FP_INIT_ROUNDMODE
Not all compilers support the inline asm prefix '%v' to emit the avx
instruction if AVX is enable. Use a prefix instead.
Checked on x86_64-linux-gnu and i686-linux-gnu.
| -rw-r--r-- | sysdeps/x86/fpu/sfp-machine.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sysdeps/x86/fpu/sfp-machine.h b/sysdeps/x86/fpu/sfp-machine.h index fcbcf69..f06e3c0 100644 --- a/sysdeps/x86/fpu/sfp-machine.h +++ b/sysdeps/x86/fpu/sfp-machine.h @@ -48,9 +48,15 @@ typedef unsigned int UTItype __attribute__ ((mode (TI))); # define FP_RND_MASK 0x6000 +# ifdef __AVX__ +# define AVX_INSN_PREFIX "v" +# else +# define AVX_INSN_PREFIX "" +# endif + # define FP_INIT_ROUNDMODE \ do { \ - __asm__ __volatile__ ("%vstmxcsr\t%0" : "=m" (_fcw)); \ + __asm__ __volatile__ (AVX_INSN_PREFIX "stmxcsr\t%0" : "=m" (_fcw)); \ } while (0) #else # define _FP_W_TYPE_SIZE 32 |