================
@@ -0,0 +1,17 @@
+// RUN: %clang_cc1 -verify -fsyntax-only %s
+
+int __attribute__((not_tail_called)) foo1(int a) {
+ return a + 1;
+}
+
+
+int foo2(int a) {
+ [[clang::musttail]]
+ return foo1(a); // expected-error {{cannot perform a tail call to
function 'foo1' because its signature is incompatible with the calling
function}}
----------------
AaronBallman wrote:
Good idea Erich! I don't think we need a new diagnostic though, we can reuse
`note_conflicting_attribute`, so I think this will suffice:
```
Diag(CalleeDecl->getAttr<NotTailCalledAttr>()->getLoc(),
diag::note_conflicting_attribute);
```
https://github.com/llvm/llvm-project/pull/134465
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