AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-01-11 11:50:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

math: x86: Use prefix for FP_INIT_ROUNDMODE

Browse Source 
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.
This commit is contained in:
Adhemerval Zanella 2022-03-10 14:48:44 -03:00
parent 0784e7913f
commit 2fc7320668
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
sysdeps/x86/fpu/sfp-machine.h
View File

@ -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