================
@@ -1343,6 +1343,11 @@ llvm::Value
*CodeGenFunction::EmitLifetimeStart(llvm::TypeSize Size,
if (!ShouldEmitLifetimeMarkers)
return nullptr;
+ // No lifetimes on promise alloca, or middle end passes will assume promise
+ // dead after lifetime.end, leading to mis-optimization
+ if (Addr->getName() == "__promise")
----------------
NewSigma wrote:
Thank you for catching that. I've now used VarDecl::getName and tested it on
non-assert builds.
https://github.com/llvm/llvm-project/pull/140548
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