commit 0661b81bca9e6cb68b6a37470ed3d92c61d3593b
author Akira Hatanaka <ahatanaka@mips.com> Fri May 11 23:22:18 2012 +0000
committer Akira Hatanaka <ahatanaka@mips.com> Fri May 11 23:22:18 2012 +0000
tree 83d23668a95f0fdc38a449be3a76c5a446b32b29
parent a33015d4e0f60159e37da0a163b826db6cb7a81d

Do not replace operands of pseudo instructions with register $zero.

llvm-svn: 156663

llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp

diff --git a/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp b/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp
index 6e5bad7..027c171 100644
--- a/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp
+++ b/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp
@@ -213,7 +213,8 @@
     MachineInstr *MI = MO.getParent();
 
     // Do not replace if it is a phi's operand or is tied to def operand.
-    if (MI->isPHI() || MI->isRegTiedToDefOperand(U.getOperandNo()))
+    if (MI->isPHI() || MI->isRegTiedToDefOperand(U.getOperandNo()) ||
+        MI->isPseudo())
       continue;
 
     MO.setReg(ZeroReg);