================
@@ -2921,6 +2921,12 @@ bool Attributor::isValidFunctionSignatureRewrite(
return false;
Function *Fn = Arg.getParent();
+ if (!Fn->canChangeSignature()) {
----------------
jhuber6 wrote:
I took a closer look, and the attributor already gates `optnone` functions on
`shouldInitialize`, so this was a complete no-op. I've dropped it for now, we
can investigate allowing the attributor to search through `optnone` functions
later.
https://github.com/llvm/llvm-project/pull/211804
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