================
@@ -5284,8 +5284,22 @@ void Sema::InstantiateFunctionDefinition(SourceLocation
PointOfInstantiation,
savedContext.pop();
}
- DeclGroupRef DG(Function);
- Consumer.HandleTopLevelDecl(DG);
+ // With CWG2369, we substitute constraints before instantiating the
associated
+ // function template. This helps prevent potential code generation for
+ // dependent types, particularly under the MS ABI.
----------------
cor3ntin wrote:
```suggestion
// We never need to emit the code for a lambda in unevaluated context.
// We also can't mangle a lambda in the require clause of a function template
// during constraint checking as the MSI ABI would need to mangle the (not
yet specialized) enclosing declaration
// FIXME: Should we try to skip this for non-lambda functions too?
```
https://github.com/llvm/llvm-project/pull/122423
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