[NFC] Fix build failure in ScopDetection

In some build environments, the C++ compiler is unable to infer the
correct type for the DenseMap::insert in isErrorBlock. Typing out
std::make_pair helps.

diff --git a/polly/lib/Analysis/ScopDetection.cpp b/polly/lib/Analysis/ScopDetection.cpp
index aab8741..4dfcf34 100644 (file)
--- a/polly/lib/Analysis/ScopDetection.cpp
+++ b/polly/lib/Analysis/ScopDetection.cpp
@@ -1469,7 +1469,7 @@ bool ScopDetection::isErrorBlock(llvm::BasicBlock &BB, const llvm::Region &R) {
   if (!PollyAllowErrorBlocks)
     return false;
 
-  auto It = ErrorBlockCache.insert({{&BB, &R}, false});
+  auto It = ErrorBlockCache.insert({std::make_pair(&BB, &R), false});
   if (!It.second)
     return It.first->getSecond();