aboutsummaryrefslogtreecommitdiff
path: root/lib/Frontend/PrintPreprocessedOutput.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/Frontend/PrintPreprocessedOutput.cpp')
-rw-r--r--lib/Frontend/PrintPreprocessedOutput.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Frontend/PrintPreprocessedOutput.cpp b/lib/Frontend/PrintPreprocessedOutput.cpp
index cfaf8a23b1..5ae02f97bd 100644
--- a/lib/Frontend/PrintPreprocessedOutput.cpp
+++ b/lib/Frontend/PrintPreprocessedOutput.cpp
@@ -263,6 +263,7 @@ void PrintPPOutputPPCallbacks::FileChanged(SourceLocation Loc,
// predefines buffer.
if (DumpHeaderIncludes && HasProcessedPredefines &&
Reason == PPCallbacks::EnterFile) {
+ // Write to a temporary string to avoid unnecessary flushing on errs().
llvm::SmallString<256> Msg;
llvm::raw_svector_ostream OS(Msg);
for (unsigned i = 0; i != CurrentIncludeDepth; ++i)