r305898 - Fix unused-variable compilation error.

[Haojian Wu via cfe-commits]

Author: hokein
Date: Wed Jun 21 06:26:58 2017
New Revision: 305898

URL: http://llvm.org/viewvc/llvm-project?rev=305898&view=rev
Log:
Fix unused-variable compilation error.

Modified:
    cfe/trunk/lib/Frontend/PrecompiledPreamble.cpp

Modified: cfe/trunk/lib/Frontend/PrecompiledPreamble.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/PrecompiledPreamble.cpp?rev=305898&r1=305897&r2=305898&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/PrecompiledPreamble.cpp (original)
+++ cfe/trunk/lib/Frontend/PrecompiledPreamble.cpp Wed Jun 21 06:26:58 2017
@@ -73,12 +73,14 @@ TemporaryFiles::~TemporaryFiles() {
 void TemporaryFiles::addFile(StringRef File) {
   llvm::MutexGuard Guard(Mutex);
   auto IsInserted = Files.insert(File).second;
+  (void)IsInserted;
   assert(IsInserted && "File has already been added");
 }
 
 void TemporaryFiles::removeFile(StringRef File) {
   llvm::MutexGuard Guard(Mutex);
   auto WasPresent = Files.erase(File);
+  (void)WasPresent;
   assert(WasPresent && "File was not tracked");
   llvm::sys::fs::remove(File);
 }