[llvm] [LLVM] Add new attribute `optdebug` to optimize for debugging (PR #66632)

[Paul T Robinson via llvm-commits]

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@@ -2325,6 +2325,7 @@ void CodeGenModule::SetLLVMFunctionAttributesForDefinition(const Decl *D,
       B.addAttribute(llvm::Attribute::Naked);
 
     // OptimizeNone wins over OptimizeForSize and MinSize.
+    F->removeFnAttr(llvm::Attribute::OptimizeForDebugging);
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pogo59 wrote:

Given that this patch doesn't have any other clang changes, this one can be deferred to a later patch where clang actually applies the attribute.

https://github.com/llvm/llvm-project/pull/66632