[llvm] [RFC] Memory Model Relaxation Annotations (PR #78569)

[Pierre van Houtryve via llvm-commits]

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@@ -496,7 +497,8 @@ void Instruction::dropUBImplyingAttrsAndMetadata() {
   // !noundef and various AA metadata must be dropped, as it generally produces
   // immediate undefined behavior.
   unsigned KnownIDs[] = {LLVMContext::MD_annotation, LLVMContext::MD_range,
-                         LLVMContext::MD_nonnull, LLVMContext::MD_align};
+                         LLVMContext::MD_nonnull, LLVMContext::MD_align,
+                         LLVMContext::MD_mmra};
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Pierre-vh wrote:

This is indeed not needed, I removed it

https://github.com/llvm/llvm-project/pull/78569