[FFmpeg-devel] [PATCH 05/11] avcodec: add stride alignment needed for AVX-512

[James Darnley]

---
 configure             | 2 ++
 libavcodec/internal.h | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 146a87324c..fce8030d91 100755
--- a/configure
+++ b/configure
@@ -1886,6 +1886,7 @@ ARCH_FEATURES="
     local_aligned
     simd_align_16
     simd_align_32
+    simd_align_64
 "
 
 BUILTIN_LIST="
@@ -2385,6 +2386,7 @@ 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"
diff --git a/libavcodec/internal.h b/libavcodec/internal.h
index 7748f09f54..84070431ed 100644
--- a/libavcodec/internal.h
+++ b/libavcodec/internal.h
@@ -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
-- 
2.15.0