diff options
| author | Frank Barchard <fbarchard@google.com> | 2016-10-14 16:34:08 -0700 |
|---|---|---|
| committer | Frank Barchard <fbarchard@google.com> | 2016-10-14 16:34:08 -0700 |
| commit | fdcf524aacb38b1e476f82abe5dc2e7dbf07dbc7 (patch) | |
| tree | f1bd8fc866e8f6601189d1ac571518b228af03bf /source/cpu_id.cc | |
| parent | 5333e94e70fffcb126fe507cabbaefa0783b8125 (diff) | |
| download | libyuv-fdcf524aacb38b1e476f82abe5dc2e7dbf07dbc7.tar.gz | |
Add f16c (halffloat) cpuid
R=wangcheng@google.com, hubbe@chromium.org
BUG=libyuv:560
Review URL: https://codereview.chromium.org/2418763006 .
Diffstat (limited to 'source/cpu_id.cc')
| -rw-r--r-- | source/cpu_id.cc | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/source/cpu_id.cc b/source/cpu_id.cc index 27e2467b..4fb168d7 100644 --- a/source/cpu_id.cc +++ b/source/cpu_id.cc @@ -229,19 +229,21 @@ int InitCpuFlags(void) { if (cpu_info0[0] >= 7) { CpuId(7, 0, cpu_info7); } - cpu_info = ((cpu_info1[3] & 0x04000000) ? kCpuHasSSE2 : 0) | + cpu_info = kCpuHasX86 | + ((cpu_info1[3] & 0x04000000) ? kCpuHasSSE2 : 0) | ((cpu_info1[2] & 0x00000200) ? kCpuHasSSSE3 : 0) | ((cpu_info1[2] & 0x00080000) ? kCpuHasSSE41 : 0) | ((cpu_info1[2] & 0x00100000) ? kCpuHasSSE42 : 0) | - ((cpu_info7[1] & 0x00000200) ? kCpuHasERMS : 0) | - ((cpu_info1[2] & 0x00001000) ? kCpuHasFMA3 : 0) | - kCpuHasX86; + ((cpu_info7[1] & 0x00000200) ? kCpuHasERMS : 0); #ifdef HAS_XGETBV // AVX requires CPU has AVX, XSAVE and OSXSave for xgetbv if (((cpu_info1[2] & 0x1c000000) == 0x1c000000) && // AVX and OSXSave ((GetXCR0() & 6) == 6)) { // Test OS saves YMM registers - cpu_info |= ((cpu_info7[1] & 0x00000020) ? kCpuHasAVX2 : 0) | kCpuHasAVX; + cpu_info |= kCpuHasAVX | + ((cpu_info7[1] & 0x00000020) ? kCpuHasAVX2 : 0) | + ((cpu_info1[2] & 0x00001000) ? kCpuHasFMA3 : 0) | + ((cpu_info1[2] & 0x20000000) ? kCpuHasF16C : 0); // Detect AVX512bw if ((GetXCR0() & 0xe0) == 0xe0) { @@ -281,6 +283,10 @@ int InitCpuFlags(void) { if (TestEnv("LIBYUV_DISABLE_AVX3")) { cpu_info &= ~kCpuHasAVX3; } + if (TestEnv("LIBYUV_DISABLE_F16C")) { + cpu_info &= ~kCpuHasF16C; + } + #endif #if defined(__mips__) && defined(__linux__) #if defined(__mips_dspr2) |