1 files changed, 33 insertions, 0 deletions
diff --git a/test/Modules/validate-file-content.m b/test/Modules/validate-file-content.m
new file mode 100644
index 0000000000..327a68a9b6
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+++ b/test/Modules/validate-file-content.m
@@ -0,0 +1,33 @@
+// REQUIRES: shell
+//
+// Check driver works
+// RUN: %clang -fmodules -fsyntax-only -fmodules-validate-input-files-content %s -### 2>&1 | FileCheck --check-prefix=CHECK-CC1 %s
+// CHECK-CC1: -fvalidate-ast-input-files-content
+//
+// PCH+Modules: Test that a mtime mismatch without content change is fine
+// RUN: rm -rf %t
+// RUN: mkdir %t
+// RUN: echo '// m.h' > %t/m.h
+// RUN: echo '#include "m.h"' > %t/a.h
+// RUN: echo 'module m { header "m.h" }' > %t/module.modulemap
+// RUN: %clang_cc1 -emit-pch -fmodules-cache-path=%t/cache -fmodules -fimplicit-module-maps -o %t/a.pch -I %t -x objective-c-header %t/a.h -fvalidate-ast-input-files-content
+// RUN: touch -m -a -t 202901010000 %t/m.h
+// RUN: %clang_cc1 -fsyntax-only -fmodules-cache-path=%t/cache -fmodules -fimplicit-module-maps -I %t -include-pch %t/a.pch %s -verify -fvalidate-ast-input-files-content
+//
+// PCH+Modules: Test that a mtime mismatch with content change
+// RUN: rm -rf %t
+// RUN: mkdir %t
+// RUN: echo '// m.h' > %t/m.h
+// RUN: echo '#include "m.h"' > %t/a.h
+// RUN: echo 'module m { header "m.h" }' > %t/module.modulemap
+// RUN: %clang_cc1 -emit-pch -fmodules-cache-path=%t/cache -fmodules -fimplicit-module-maps -o %t/a.pch -I %t -x objective-c-header %t/a.h -fvalidate-ast-input-files-content
+// RUN: echo '// m.x' > %t/m.h
+// RUN: touch -m -a -t 202901010000 %t/m.h
+// RUN: not %clang_cc1 -fsyntax-only -fmodules-cache-path=%t/cache -fmodules -fimplicit-module-maps -I %t -include-pch %t/a.pch %s -fvalidate-ast-input-files-content 2> %t/stderr
+// RUN: FileCheck %s < %t/stderr
+//
+// CHECK: file '[[M_H:.*[/\\]m\.h]]' has been modified since the precompiled header '[[A_PCH:.*/a\.pch]]' was built: content changed
+// CHECK: '[[M_H]]' required by '[[M_PCM:.*[/\\]m.*\.pcm]]'
+// CHECK: '[[M_PCM]]' required by '[[A_PCH]]'
+// CHECK: please rebuild precompiled header '[[A_PCH]]'
+// expected-no-diagnostics