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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-03-10 14:48:44 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-09-05 10:54:41 -0300 |
| commit | 2fc7320668ee843f9d1e5a2ec6c6fdbf00c735a3 (patch) | |
| tree | 318b1aac031ffd33005b14f3b9abebc43c0ecb8d | |
| parent | 0784e7913f97370388d590b32afeab48522b7026 (diff) | |
| download | glibc-2fc7320668ee843f9d1e5a2ec6c6fdbf00c735a3.tar.gz glibc-2fc7320668ee843f9d1e5a2ec6c6fdbf00c735a3.tar.xz glibc-2fc7320668ee843f9d1e5a2ec6c6fdbf00c735a3.zip | |
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 5892f4f5fe..bc3fe332df 100644 --- a/sysdeps/x86/fpu/sfp-machine.h +++ b/sysdeps/x86/fpu/sfp-machine.h @@ -39,9 +39,15 @@ 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 |