X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FCodeGen%2FRegisterCoalescer.h;h=47c3df14606d19a1e6e75fdc5a5317257ac61479;hb=27cfb7a41d02e2f36f9dbcd467b557116c86c3f0;hp=8a6df988f1bb854e807fc96fc702961337c0b871;hpb=a7542d5f870c5d98960d1676e23ac1d1d975d7e5;p=oota-llvm.git

diff --git a/lib/CodeGen/RegisterCoalescer.h b/lib/CodeGen/RegisterCoalescer.h
index 8a6df988f1b..47c3df14606 100644
--- a/lib/CodeGen/RegisterCoalescer.h
+++ b/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*);