avcodec: add stride alignment needed for AVX-512
authorJames Darnley <jdarnley@obe.tv>
Mon, 6 Nov 2017 14:43:39 +0000 (15:43 +0100)
committerJames Darnley <james.darnley@gmail.com>
Sun, 24 Dec 2017 21:02:41 +0000 (22:02 +0100)
configure
libavcodec/internal.h

index 07fb825..d3187d7 100755 (executable)
--- a/configure
+++ b/configure
@@ -1892,6 +1892,7 @@ ARCH_FEATURES="
     local_aligned
     simd_align_16
     simd_align_32
+    simd_align_64
 "
 
 BUILTIN_LIST="
@@ -2394,6 +2395,7 @@ fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
 fast_unaligned_if_any="aarch64 ppc x86"
 simd_align_16_if_any="altivec neon sse"
 simd_align_32_if_any="avx"
+simd_align_64_if_any="avx512"
 
 # system capabilities
 symver_if_any="symver_asm_label symver_gnu_asm"
index 30cb9a0..fcbdb6c 100644 (file)
@@ -87,7 +87,9 @@
 
 #define FF_SIGNBIT(x) ((x) >> CHAR_BIT * sizeof(x) - 1)
 
-#if HAVE_SIMD_ALIGN_32
+#if HAVE_SIMD_ALIGN_64
+#   define STRIDE_ALIGN 64 /* AVX-512 */
+#elif HAVE_SIMD_ALIGN_32
 #   define STRIDE_ALIGN 32
 #elif HAVE_SIMD_ALIGN_16
 #   define STRIDE_ALIGN 16