1 files changed, 7 insertions, 0 deletions
diff --git a/contrib/llvm/lib/CodeGen/RegisterCoalescer.h b/contrib/llvm/lib/CodeGen/RegisterCoalescer.h
index 8a6df988f1bb..47c3df14606d 100644
--- a/contrib/llvm/lib/CodeGen/RegisterCoalescer.h
+++ b/contrib/llvm/lib/CodeGen/RegisterCoalescer.h
@@ -63,6 +63,13 @@ namespace llvm {
       : TRI(tri), DstReg(0), SrcReg(0), DstIdx(0), SrcIdx(0),
         Partial(false), CrossClass(false), Flipped(false), NewRC(0) {}
 
+    /// Create a CoalescerPair representing a virtreg-to-physreg copy.
+    /// No need to call setRegisters().
+    CoalescerPair(unsigned VirtReg, unsigned PhysReg,
+                  const TargetRegisterInfo &tri)
+      : TRI(tri), DstReg(PhysReg), SrcReg(VirtReg), DstIdx(0), SrcIdx(0),
+        Partial(false), CrossClass(false), Flipped(false), NewRC(0) {}
+
     /// setRegisters - set registers to match the copy instruction MI. Return
     /// false if MI is not a coalescable copy instruction.
     bool setRegisters(const MachineInstr*);