[FFmpeg-devel] [PATCH] configure: set IceLake-AVX512 as the minimum baseline

[Wu Jianhua]

Based on IceLake-AVX512 and newer architecture, a broad
range of the subsets of AVX512 could be supported.

Signed-off-by: Wu Jianhua <jianhua.wu at intel.com>
---
 configure | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 94b30afe74..04caa25736 100755
--- a/configure
+++ b/configure
@@ -6057,7 +6057,9 @@ EOF
             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
         esac
 
-        enabled avx512 && check_x86asm avx512_external "vmovdqa32 [eax]{k1}{z}, zmm0"
+        # Only IceLake and newer architectures could enable AVX512
+        # F/CD/BW/DQ/VL/VNNI/IFMA/VBMI/VBMI2/VPOPCNTDQ/BITALG/GFNI/VAES/VPCLMULQDQ
+        enabled avx512 && check_x86asm avx512_external "vpdpwssds zmm31{k1}{z}, zmm29, zmm28"
         enabled avx2   && check_x86asm avx2_external   "vextracti128 xmm0, ymm0, 0"
         enabled xop    && check_x86asm xop_external    "vpmacsdd xmm0, xmm1, xmm2, xmm3"
         enabled fma4   && check_x86asm fma4_external   "vfmaddps ymm0, ymm1, ymm2, ymm3"
-- 
2.25.1