================
@@ -0,0 +1,64 @@
+// RUN: %clang_cc1 %s -verify -Wimplicit-int-conversion
+// RUN: %clang_cc1 %s -verify -Wimplicit-int-conversion
-Wno-implicit-int-conversion-on-negation -DNO_DIAG
+
+char test_char(char x) {
+ return -x;
+#ifndef NO_DIAG
+ // expected-warning@-2 {{implicit conversion loses integer precision}}
----------------
AaronBallman wrote:
Is this actually checking for the new diagnostic ("on negation")? If so, you
should update the expected warning to include the whole diagnostic text.
https://github.com/llvm/llvm-project/pull/139429
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