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-rw-r--r--lib/Driver/Compilation.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/Driver/Compilation.cpp b/lib/Driver/Compilation.cpp
index 5619212d38bb..2657faa0d3a7 100644
--- a/lib/Driver/Compilation.cpp
+++ b/lib/Driver/Compilation.cpp
@@ -101,6 +101,12 @@ bool Compilation::CleanupFileList(const ArgStringList &Files,
llvm::sys::Path P(*it);
std::string Error;
+ // Don't try to remove files which we don't have write access to (but may be
+ // able to remove). Underlying tools may have intentionally not overwritten
+ // them.
+ if (!P.canWrite())
+ continue;
+
if (P.eraseFromDisk(false, &Error)) {
// Failure is only failure if the file exists and is "regular". There is
// a race condition here due to the limited interface of