[PowerPC] Enable interleaved-access vectorization

[oota-llvm.git] / lib / CodeGen / SpillPlacement.h

diff --git a/lib/CodeGen/SpillPlacement.h b/lib/CodeGen/SpillPlacement.h
index 03cf5cd74246e5fb4299a3ef81284c8cd3cb2d67..03dd58d6e9a978a52f13d03f5eb2112af5b4d36e 100644 (file)
--- a/lib/CodeGen/SpillPlacement.h
+++ b/lib/CodeGen/SpillPlacement.h
@@ -62,11 +62,15 @@ class SpillPlacement : public MachineFunctionPass {
   // Block frequencies are computed once. Indexed by block number.
   SmallVector<BlockFrequency, 8> BlockFrequencies;
 
+  /// Decision threshold. A node gets the output value 0 if the weighted sum of
+  /// its inputs falls in the open interval (-Threshold;Threshold).
+  BlockFrequency Threshold;
+
 public:
   static char ID; // Pass identification, replacement for typeid.
 
   SpillPlacement() : MachineFunctionPass(ID), nodes(nullptr) {}
-  ~SpillPlacement() { releaseMemory(); }
+  ~SpillPlacement() override { releaseMemory(); }
 
   /// BorderConstraint - A basic block has separate constraints for entry and
   /// exit.
@@ -152,6 +156,7 @@ private:
   void releaseMemory() override;
 
   void activate(unsigned);
+  void setThreshold(const BlockFrequency &Entry);
 };
 
 } // end namespace llvm