[clang] [flang] [llvm] [mlir] [IR] Generalize !amdgpu.ignore.denormal.mode into !atomic.ignore.denormal.mode (PR #217585)

[Matt Arsenault via cfe-commits]

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@@ -7208,6 +7208,8 @@ Error BitcodeReader::materialize(GlobalValue *GV) {
   }
 
   for (auto &I : make_early_inc_range(instructions(F))) {
+    UpgradeInstructionMetadata(I);
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arsenm wrote:

We generally don't bother trying to upgrade metadata, it's safe to drop by design. 

https://github.com/llvm/llvm-project/pull/217585