[llvm] [msan] Handle x86_avx512_(min|max)_p[sd]_512 intrinsics (PR #124421)

[Alexander Shaposhnikov via llvm-commits]

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@@ -4466,6 +4472,20 @@ struct MemorySanitizerVisitor : public InstVisitor<MemorySanitizerVisitor> {
       break;
     }
 
+    // Packed
+    case Intrinsic::x86_avx512_min_ps_512:
+    case Intrinsic::x86_avx512_min_pd_512:
+    case Intrinsic::x86_avx512_max_ps_512:
+    case Intrinsic::x86_avx512_max_pd_512: {
+      // These AVX512 variants contain the rounding mode as a trailing flag.
+      // Earlier variants do not have a trailing flag and are already handled
+      // by maybeHandleSimpleNomemIntrinsic(I, 0) via handleUnknownIntrinsic.
+      bool success = maybeHandleSimpleNomemIntrinsic(I, /* trailingFlags */ 1);
+      (void)success;
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alexander-shaposhnikov wrote:

nit: [[maybe_unused]]

https://github.com/llvm/llvm-project/pull/124421