Delete temporary output files when an error occurs during PCH reading.

This reduces the spam make test leaves behind in /tmp. The assert isn't
particularly useful because it's not run with -disable-free (the default when
using the clang driver) but should cover all -cc1 tests.

llvm-svn: 165910

2 files changed, 2 insertions, 0 deletions

diff --git a/clang/lib/Frontend/CompilerInstance.cpp b/clang/lib/Frontend/CompilerInstance.cpp
index 24f38d428b0..c50a6514446 100644
--- a/clang/lib/Frontend/CompilerInstance.cpp
+++ b/clang/lib/Frontend/CompilerInstance.cpp
@@ -52,6 +52,7 @@ CompilerInstance::CompilerInstance()
 }
 
 CompilerInstance::~CompilerInstance() {
+  assert(OutputFiles.empty() && "Still output files in flight?");
 }
 
 void CompilerInstance::setInvocation(CompilerInvocation *Value) {
diff --git a/clang/lib/Frontend/FrontendAction.cpp b/clang/lib/Frontend/FrontendAction.cpp
index ca8511247a3..c8e41def8e3 100644
--- a/clang/lib/Frontend/FrontendAction.cpp
+++ b/clang/lib/Frontend/FrontendAction.cpp
@@ -316,6 +316,7 @@ bool FrontendAction::BeginSourceFile(CompilerInstance &CI,
 
   if (HasBegunSourceFile)
     CI.getDiagnosticClient().EndSourceFile();
+  CI.clearOutputFiles(/*EraseFiles=*/true);
   setCurrentInput(FrontendInputFile());
   setCompilerInstance(0);
   return false;