[Orc] Include <system_error> in OrcTargetClient.

[oota-llvm.git] / include / llvm / CodeGen / RegAllocPBQP.h

diff --git a/include/llvm/CodeGen/RegAllocPBQP.h b/include/llvm/CodeGen/RegAllocPBQP.h
index c7bb07b46a07bcfe40c51ef2c691b5ecb43151b8..4122811a9e5cebe1dbc084cd0dda5aef655f05f8 100644 (file)
--- a/include/llvm/CodeGen/RegAllocPBQP.h
+++ b/include/llvm/CodeGen/RegAllocPBQP.h
@@ -134,7 +134,7 @@ inline hash_code hash_value(const AllowedRegVector &OptRegs) {
                       hash_combine_range(OStart, OEnd));
 }
 
-/// \brief Holds graph-level metadata relevent to PBQP RA problems.
+/// \brief Holds graph-level metadata relevant to PBQP RA problems.
 class GraphMetadata {
 private:
   typedef ValuePool<AllowedRegVector> AllowedRegVecPool;
@@ -544,8 +544,10 @@ private:
   public:
     SpillCostComparator(const Graph& G) : G(G) {}
     bool operator()(NodeId N1Id, NodeId N2Id) {
-      PBQPNum N1SC = G.getNodeCosts(N1Id)[0] / G.getNodeDegree(N1Id);
-      PBQPNum N2SC = G.getNodeCosts(N2Id)[0] / G.getNodeDegree(N2Id);
+      PBQPNum N1SC = G.getNodeCosts(N1Id)[0];
+      PBQPNum N2SC = G.getNodeCosts(N2Id)[0];
+      if (N1SC == N2SC)
+        return G.getNodeDegree(N1Id) < G.getNodeDegree(N2Id);
       return N1SC < N2SC;
     }
   private: