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-rw-r--r--include/llvm/CodeGen/RegAllocPBQP.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/RegAllocPBQP.h b/include/llvm/CodeGen/RegAllocPBQP.h
index 4122811a9e5c..21952272ffdb 100644
--- a/include/llvm/CodeGen/RegAllocPBQP.h
+++ b/include/llvm/CodeGen/RegAllocPBQP.h
@@ -21,6 +21,7 @@
#include "llvm/CodeGen/PBQP/ReductionRules.h"
#include "llvm/CodeGen/PBQPRAConstraint.h"
#include "llvm/Support/ErrorHandling.h"
+#include <set>
namespace llvm {