Add a CC1 option -verify-pch

This option will:
- load the given pch file
- verify it is not out of date by stat'ing dependencies, and
- return 0 on success and non-zero on error

llvm-svn: 200884

1 files changed, 1 insertions, 0 deletions

diff --git a/clang/lib/Frontend/FrontendAction.cpp b/clang/lib/Frontend/FrontendAction.cpp
index 0baf3e5e1fb..13a0787e427 100644
--- a/clang/lib/Frontend/FrontendAction.cpp
+++ b/clang/lib/Frontend/FrontendAction.cpp
@@ -314,6 +314,7 @@ bool FrontendAction::BeginSourceFile(CompilerInstance &CI,
                                 CI.getPreprocessorOpts().ImplicitPCHInclude,
                                 CI.getPreprocessorOpts().DisablePCHValidation,
                             CI.getPreprocessorOpts().AllowPCHWithCompilerErrors,
+                            /*AllowConfigurationMismatch*/false,
                                 DeserialListener);
       if (!CI.getASTContext().getExternalSource())
         goto failure;