1 files changed, 12 insertions, 0 deletions
diff --git a/llvm/include/llvm/CodeGen/CalcSpillWeights.h b/llvm/include/llvm/CodeGen/CalcSpillWeights.h
index 0b6ed079b38e..bfd5bab3d1c0 100644
--- a/llvm/include/llvm/CodeGen/CalcSpillWeights.h
+++ b/llvm/include/llvm/CodeGen/CalcSpillWeights.h
@@ -80,6 +80,18 @@ class VirtRegMap;
     /// live intervals.
     void calculateSpillWeightsAndHints();
 
+    /// Return the preferred allocation register for reg, given a COPY
+    /// instruction.
+    static Register copyHint(const MachineInstr *MI, unsigned Reg,
+                             const TargetRegisterInfo &TRI,
+                             const MachineRegisterInfo &MRI);
+
+    /// Determine if all values in LI are rematerializable.
+    static bool isRematerializable(const LiveInterval &LI,
+                                   const LiveIntervals &LIS,
+                                   const VirtRegMap &VRM,
+                                   const TargetInstrInfo &TII);
+
   protected:
     /// Helper function for weight calculations.
     /// (Re)compute LI's spill weight and allocation hint, or, for non null