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x86: use raw opcode for xgetbv instruction

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This allows the CPU detection to work with assemblers not supporting
the xgetbv mnemonic.  These include clang and some BSD versions.

All AVX code will be written for yasm, where the main assembler
is not involved.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-02-20 14:38:32 +00:00
parent d2bbf82e65
commit ef66953875
1 changed files with 1 additions and 1 deletions
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2
libavutil/x86/cpu.c
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@ -36,7 +36,7 @@
: "0" (index));
#define xgetbv(index,eax,edx) \
__asm__ ("xgetbv" : "=a"(eax), "=d"(edx) : "c" (index))
__asm__ (".byte 0x0f, 0x01, 0xd0" : "=a"(eax), "=d"(edx) : "c" (index))
/* Function to test if multimedia instructions are supported... */
int ff_get_cpu_flags_x86(void)