[test] Test -Werror=foo -Wfoo & -Werror -Wno-error=foo -Wfoo

Clang now matches GCC in the two cases. D109981 fixed the second case though it did not call out the effect.
llvm · Apr 16, 2022 · 468c7b6 · 468c7b6
1 parent 847c398
commit 468c7b6
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/clang/test/Misc/diag-mapping2.c b/clang/test/Misc/diag-mapping2.c
@@ -11,9 +11,11 @@
 
 // -Werror can map this one warning to error.
 // RUN: not %clang_cc1 %s -Werror=#warnings 2>&1 | grep "error: foo"
+// RUN: not %clang_cc1 %s -Werror=#warnings -W#warnings 2>&1 | grep "error: foo"
 
-// -Wno-error= overrides -Werror.  rdar://3158301
+// -Wno-error= overrides -Werror. -Wno-error applies to a subsequent warning of the same name.
 // RUN: %clang_cc1 %s -Werror -Wno-error=#warnings 2>&1 | grep "warning: foo"
+// RUN: %clang_cc1 %s -Werror -Wno-error=#warnings -W#warnings 2>&1 | grep "warning: foo"
 
 // -Wno-error overrides -Werror.  PR4715
 // RUN: %clang_cc1 %s -Werror -Wno-error 2>&1 | grep "warning: foo"