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| author | Kyle Siefring <kylesiefring@gmail.com> | 2017-10-31 11:19:19 -0400 |
|---|---|---|
| committer | Kyle Siefring <kylesiefring@gmail.com> | 2017-11-03 13:37:23 -0400 |
| commit | b383a17fa4c36a4242816ba6a1c57dca46d042d6 (patch) | |
| tree | c8d97ab3e073051572fc5852e1266a5851929690 /vpx_ports | |
| parent | 3bf02ad74af5602c153a318b04cc311acdc7584d (diff) | |
| download | libvpx-b383a17fa4c36a4242816ba6a1c57dca46d042d6.tar libvpx-b383a17fa4c36a4242816ba6a1c57dca46d042d6.tar.gz libvpx-b383a17fa4c36a4242816ba6a1c57dca46d042d6.tar.bz2 libvpx-b383a17fa4c36a4242816ba6a1c57dca46d042d6.zip | |
Support building AVX-512 and implement sadx4 for AVX-512
The added AVX-512 support requires the subset of AVX-512 added in Skylake-X.
Change-Id: I39666b00d10bf96d06c709823663eb09b89265b7
Diffstat (limited to 'vpx_ports')
| -rw-r--r-- | vpx_ports/x86.h | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/vpx_ports/x86.h b/vpx_ports/x86.h index 5aabb9e3a..ced65ac05 100644 --- a/vpx_ports/x86.h +++ b/vpx_ports/x86.h @@ -151,16 +151,17 @@ static INLINE uint64_t xgetbv(void) { #endif #endif -#define HAS_MMX 0x01 -#define HAS_SSE 0x02 -#define HAS_SSE2 0x04 -#define HAS_SSE3 0x08 -#define HAS_SSSE3 0x10 -#define HAS_SSE4_1 0x20 -#define HAS_AVX 0x40 -#define HAS_AVX2 0x80 +#define HAS_MMX 0x001 +#define HAS_SSE 0x002 +#define HAS_SSE2 0x004 +#define HAS_SSE3 0x008 +#define HAS_SSSE3 0x010 +#define HAS_SSE4_1 0x020 +#define HAS_AVX 0x040 +#define HAS_AVX2 0x080 +#define HAS_AVX512 0x100 #ifndef BIT -#define BIT(n) (1 << n) +#define BIT(n) (1u << n) #endif static INLINE int x86_simd_caps(void) { @@ -209,6 +210,12 @@ static INLINE int x86_simd_caps(void) { cpuid(7, 0, reg_eax, reg_ebx, reg_ecx, reg_edx); if (reg_ebx & BIT(5)) flags |= HAS_AVX2; + + // bits 16 (AVX-512F) & 17 (AVX-512DQ) & 28 (AVX-512CD) & + // 30 (AVX-512BW) & 32 (AVX-512VL) + if ((reg_ebx & (BIT(16) | BIT(17) | BIT(28) | BIT(30) | BIT(31))) == + (BIT(16) | BIT(17) | BIT(28) | BIT(30) | BIT(31))) + flags |= HAS_AVX512; } } } |