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-rw-r--r--clang/test/Driver/clang_f_opts.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/clang/test/Driver/clang_f_opts.c b/clang/test/Driver/clang_f_opts.c
index 95204f26400..1bd2e140b20 100644
--- a/clang/test/Driver/clang_f_opts.c
+++ b/clang/test/Driver/clang_f_opts.c
@@ -57,3 +57,9 @@
// RUN: %clang -### -S -ftree-slp-vectorize -fno-slp-vectorize %s 2>&1 | FileCheck -check-prefix=CHECK-NO-SLP-VECTORIZE %s
// CHECK-SLP-VECTORIZE: "-vectorize"
// CHECK-NO-SLP-VECTORIZE-NOT: "-vectorize"
+
+// RUN: %clang -### -S -fextended-identifiers %s 2>&1 | FileCheck -check-prefix=CHECK-EXTENDED-IDENTIFIERS %s
+// RUN: %clang -### -S -fno-extended-identifiers %s 2>&1 | FileCheck -check-prefix=CHECK-NO-EXTENDED-IDENTIFIERS %s
+// CHECK-EXTENDED-IDENTIFIERS: "-cc1"
+// CHECK-EXTENDED-IDENTIFIERS-NOT: "-fextended-identifiers"
+// CHECK-NO-EXTENDED-IDENTIFIERS: error: unsupported option '-fno-extended-identifiers'
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