Check optmask for avx512

AntoinePrv · AntoinePrv · commit 53f214908f49 · 2026-04-08T12:19:43.000+02:00
diff --git a/include/xsimd/config/xsimd_cpu_features_x86.hpp b/include/xsimd/config/xsimd_cpu_features_x86.hpp
@@ -594,8 +594,9 @@ namespace xsimd
 
         inline bool avx512_enabled() const noexcept
         {
-            // Check all SSE, AVX, and AVX512 bits even though AVX512 must imply AVX and SSE
-            return xcr0().all_bits_set<x86_xcr0::xcr0::sse, x86_xcr0::xcr0::avx, x86_xcr0::xcr0::zmm_hi256>();
+            // Check all SSE, AVX, optmask, and AVX512 bits even though AVX512 must
+            // imply AVX, SSE, and masked operations.
+            return xcr0().all_bits_set<x86_xcr0::xcr0::sse, x86_xcr0::xcr0::avx, x86_xcr0::xcr0::opmask, x86_xcr0::xcr0::zmm_hi256>();
         }
 
         /**

Original file line number	Diff line number	Diff line change
`@@ -594,8 +594,9 @@ namespace xsimd`
`594`	`594`
`595`	`595`	`inline bool avx512_enabled() const noexcept`
`596`	`596`	`{`
`597`		`- // Check all SSE, AVX, and AVX512 bits even though AVX512 must imply AVX and SSE`
`598`		`- return xcr0().all_bits_set<x86_xcr0::xcr0::sse, x86_xcr0::xcr0::avx, x86_xcr0::xcr0::zmm_hi256>();`
	`597`	`+ // Check all SSE, AVX, optmask, and AVX512 bits even though AVX512 must`
	`598`	`+ // imply AVX, SSE, and masked operations.`
	`599`	`+ return xcr0().all_bits_set<x86_xcr0::xcr0::sse, x86_xcr0::xcr0::avx, x86_xcr0::xcr0::opmask, x86_xcr0::xcr0::zmm_hi256>();`
`599`	`600`	`}`
`600`	`601`
`601`	`602`	`/**`