From e89a1795987327106de20c781fc841d21b9ce7b4 Mon Sep 17 00:00:00 2001
From: Argyrios Kyrtzidis <akyrtzi@gmail.com>
Date: Tue, 16 Feb 2016 05:39:33 +0000
Subject: [Frontend] Make sure WrapperFrontendAction updates CurrentInput after
 calling BeginSourceFileAction.

I don't have a test case to add unfortunately.

llvm-svn: 260937
---
 clang/lib/Frontend/FrontendAction.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'clang/lib/Frontend/FrontendAction.cpp')

diff --git a/clang/lib/Frontend/FrontendAction.cpp b/clang/lib/Frontend/FrontendAction.cpp
index a8166a647d5..cdaa18a7a31 100644
--- a/clang/lib/Frontend/FrontendAction.cpp
+++ b/clang/lib/Frontend/FrontendAction.cpp
@@ -559,7 +559,10 @@ bool WrapperFrontendAction::BeginSourceFileAction(CompilerInstance &CI,
                                                   StringRef Filename) {
   WrappedAction->setCurrentInput(getCurrentInput());
   WrappedAction->setCompilerInstance(&CI);
-  return WrappedAction->BeginSourceFileAction(CI, Filename);
+  auto Ret = WrappedAction->BeginSourceFileAction(CI, Filename);
+  // BeginSourceFileAction may change CurrentInput, e.g. during module builds.
+  setCurrentInput(WrappedAction->getCurrentInput());
+  return Ret;
 }
 void WrapperFrontendAction::ExecuteAction() {
   WrappedAction->ExecuteAction();
-- 
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