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-rw-r--r--test/Driver/warning-options.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/test/Driver/warning-options.cpp b/test/Driver/warning-options.cpp
index 02b3e1c225..343616145d 100644
--- a/test/Driver/warning-options.cpp
+++ b/test/Driver/warning-options.cpp
@@ -13,3 +13,6 @@
// NO_PEDANTIC-NOT: -pedantic
// RUN: %clang -### -pedantic -pedantic -no-pedantic -pedantic %s 2>&1 | FileCheck -check-prefix=PEDANTIC %s
// PEDANTIC: -pedantic
+
+// PR12920: They use gcc driver. Clang tends to pass -pedantic to gcc-as and gcc-ld.
+// XFAIL: cygwin,mingw32