Hexagon: Pass to replace tranfer/copy instructions into combine instruction
where possible.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181817 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Hexagon/HexagonTargetMachine.cpp b/lib/Target/Hexagon/HexagonTargetMachine.cpp
index f08da4d..676dff2 100644
--- a/lib/Target/Hexagon/HexagonTargetMachine.cpp
+++ b/lib/Target/Hexagon/HexagonTargetMachine.cpp
@@ -162,6 +162,7 @@
   HexagonTargetObjectFile &TLOF =
     (HexagonTargetObjectFile&)(getTargetLowering()->getObjFileLowering());
 
+  addPass(createHexagonCopyToCombine());
   if (getOptLevel() != CodeGenOpt::None)
     addPass(&IfConverterID);
   if (!TLOF.IsSmallDataEnabled()) {