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x86: Add CPU flag for the i686 cmov instruction

This commit is contained in:
Diego Biurrun 2012-06-19 22:55:26 +02:00
parent 29686d6ea3
commit 65345a5a30
3 changed files with 7 additions and 1 deletions
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4
libavutil/cpu.c
View File

@ -47,7 +47,7 @@ void av_set_cpu_flags_mask(int mask)
int av_parse_cpu_flags(const char *s)
{
#define CPUFLAG_MMX2 (AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMX2)
#define CPUFLAG_MMX2 (AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMX2 | AV_CPU_FLAG_CMOV)
#define CPUFLAG_3DNOW (AV_CPU_FLAG_3DNOW | AV_CPU_FLAG_MMX)
#define CPUFLAG_3DNOWEXT (AV_CPU_FLAG_3DNOWEXT | CPUFLAG_3DNOW)
#define CPUFLAG_SSE (AV_CPU_FLAG_SSE | CPUFLAG_MMX2)
@ -82,6 +82,7 @@ int av_parse_cpu_flags(const char *s)
{ "fma4" , NULL, 0, AV_OPT_TYPE_CONST, { CPUFLAG_FMA4 }, .unit = "flags" },
{ "3dnow" , NULL, 0, AV_OPT_TYPE_CONST, { CPUFLAG_3DNOW }, .unit = "flags" },
{ "3dnowext", NULL, 0, AV_OPT_TYPE_CONST, { CPUFLAG_3DNOWEXT }, .unit = "flags" },
{ "cmov", NULL, 0, AV_OPT_TYPE_CONST, { AV_CPU_FLAG_CMOV }, .unit = "flags" },
#elif ARCH_ARM
{ "armv5te", NULL, 0, AV_OPT_TYPE_CONST, { AV_CPU_FLAG_ARMV5TE }, .unit = "flags" },
{ "armv6", NULL, 0, AV_OPT_TYPE_CONST, { AV_CPU_FLAG_ARMV6 }, .unit = "flags" },
@ -143,6 +144,7 @@ static const struct {
{ AV_CPU_FLAG_FMA4, "fma4" },
{ AV_CPU_FLAG_3DNOW, "3dnow" },
{ AV_CPU_FLAG_3DNOWEXT, "3dnowext" },
{ AV_CPU_FLAG_CMOV, "cmov" },
#endif
{ 0 }
};

2
libavutil/cpu.h
View File

@ -40,6 +40,8 @@
#define AV_CPU_FLAG_AVX 0x4000 ///< AVX functions: requires OS support even if YMM registers aren't used
#define AV_CPU_FLAG_XOP 0x0400 ///< Bulldozer XOP functions
#define AV_CPU_FLAG_FMA4 0x0800 ///< Bulldozer FMA4 functions
#define AV_CPU_FLAG_CMOV 0x1000 ///< i686 cmov
#define AV_CPU_FLAG_ALTIVEC 0x0001 ///< standard
#define AV_CPU_FLAG_ARMV5TE (1 << 0)

2
libavutil/x86/cpu.c
View File

@ -83,6 +83,8 @@ int ff_get_cpu_flags_x86(void)
cpuid(1, eax, ebx, ecx, std_caps);
family = ((eax>>8)&0xf) + ((eax>>20)&0xff);
model = ((eax>>4)&0xf) + ((eax>>12)&0xf0);
if (std_caps & (1 << 15))
rval |= AV_CPU_FLAG_CMOV;
if (std_caps & (1<<23))
rval |= AV_CPU_FLAG_MMX;
if (std_caps & (1<<25))