1 files changed, 32 insertions, 0 deletions
diff --git a/test/PCH/include-timestamp.cpp b/test/PCH/include-timestamp.cpp
new file mode 100644
index 0000000000000..d7d0fab13ac53
--- /dev/null
+++ b/test/PCH/include-timestamp.cpp
@@ -0,0 +1,32 @@
+// Test that the timestamp is not included in the produced pch file with
+// -fno-pch-timestamp.
+
+// Copying files allow for read-only checkouts to run this test.
+// RUN: cp %S/Inputs/pragma-once2-pch.h %T
+// RUN: cp %S/Inputs/pragma-once2.h %T
+// RUN: cp %s %t1.cpp
+
+// Check timestamp is included by default.
+// RUN: %clang_cc1 -x c++-header -emit-pch -o %t %T/pragma-once2-pch.h
+// RUN: touch -m -a -t 201008011501 %T/pragma-once2.h
+// RUN: not %clang_cc1 -include-pch %t %t1.cpp 2>&1 | FileCheck -check-prefix=CHECK-TIMESTAMP %s
+
+// Check bitcode output as well.
+// RUN: llvm-bcanalyzer -dump %t | FileCheck -check-prefix=CHECK-BITCODE-TIMESTAMP-ON %s
+
+// Check timestamp inclusion is disabled by -fno-pch-timestamp.
+// RUN: %clang_cc1 -x c++-header -emit-pch -o %t %T/pragma-once2-pch.h -fno-pch-timestamp
+// RUN: touch -m -a -t 201008011502 %T/pragma-once2.h
+// RUN: %clang_cc1 -include-pch %t %t1.cpp 2>&1
+
+// Check bitcode output as well.
+// RUN: llvm-bcanalyzer -dump %t | FileCheck -check-prefix=CHECK-BITCODE-TIMESTAMP-OFF %s
+
+#include "pragma-once2.h"
+
+void g() { f(); }
+
+// CHECK-BITCODE-TIMESTAMP-ON: <INPUT_FILE abbrevid={{.*}} op0={{.*}} op1={{.*}} op2={{[^0]}}
+// CHECK-BITCODE-TIMESTAMP-OFF: <INPUT_FILE abbrevid={{.*}} op0={{.*}} op1={{.*}} op2={{[0]}}
+
+// CHECK-TIMESTAMP: fatal error: file {{.*}} has been modified since the precompiled header {{.*}} was built