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authorJames Almer <jamrial@gmail.com>2014-02-22 04:54:01 +0000
committerJanne Grunau <janne-libav@jannau.net>2014-02-23 15:29:36 +0100
commit1b932eb1508f550fac9e911923a0383efda53aa3 (patch)
tree1dadb7a0429d30648b3e22a7926bf8b1b03e4ac9 /libavutil/cpu.c
parent10b0161d78148f46eaffb29ea022378947eaef2c (diff)
x86: add detection for FMA3 instruction set
Based on x264 code Signed-off-by: James Almer <jamrial@gmail.com>
Diffstat (limited to 'libavutil/cpu.c')
-rw-r--r--libavutil/cpu.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/libavutil/cpu.c b/libavutil/cpu.c
index 8c2cfb87cc..972e4eb79f 100644
--- a/libavutil/cpu.c
+++ b/libavutil/cpu.c
@@ -87,6 +87,7 @@ int av_parse_cpu_flags(const char *s)
#define CPUFLAG_SSE42 (AV_CPU_FLAG_SSE42 | CPUFLAG_SSE4)
#define CPUFLAG_AVX (AV_CPU_FLAG_AVX | CPUFLAG_SSE42)
#define CPUFLAG_XOP (AV_CPU_FLAG_XOP | CPUFLAG_AVX)
+#define CPUFLAG_FMA3 (AV_CPU_FLAG_FMA3 | CPUFLAG_AVX)
#define CPUFLAG_FMA4 (AV_CPU_FLAG_FMA4 | CPUFLAG_AVX)
#define CPUFLAG_AVX2 (AV_CPU_FLAG_AVX2 | CPUFLAG_AVX)
static const AVOption cpuflags_opts[] = {
@@ -107,6 +108,7 @@ int av_parse_cpu_flags(const char *s)
{ "sse4.2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE42 }, .unit = "flags" },
{ "avx" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AVX }, .unit = "flags" },
{ "xop" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_XOP }, .unit = "flags" },
+ { "fma3" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_FMA3 }, .unit = "flags" },
{ "fma4" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_FMA4 }, .unit = "flags" },
{ "avx2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AVX2 }, .unit = "flags" },
{ "3dnow" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_3DNOW }, .unit = "flags" },
@@ -204,6 +206,7 @@ static const struct {
{ AV_CPU_FLAG_SSE42, "sse4.2" },
{ AV_CPU_FLAG_AVX, "avx" },
{ AV_CPU_FLAG_XOP, "xop" },
+ { AV_CPU_FLAG_FMA3, "fma3" },
{ AV_CPU_FLAG_FMA4, "fma4" },
{ AV_CPU_FLAG_3DNOW, "3dnow" },
{ AV_CPU_FLAG_3DNOWEXT, "3dnowext" },