[llvm-commits] CVS: llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp

[Chris Lattner]

Changes in directory llvm/lib/CodeGen/SelectionDAG:

TargetLowering.cpp updated: 1.117 -> 1.118
---
Log message:

same patch as the previous one, but the symmetric case


---
Diffs of the changes:  (+1 -1)

 TargetLowering.cpp |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)


Index: llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
diff -u llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp:1.117 llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp:1.118
--- llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp:1.117	Fri May 18 19:43:44 2007
+++ llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp	Fri May 18 19:46:51 2007
@@ -1808,7 +1808,7 @@
         if (DAG.isCommutativeBinOp(N1.getOpcode())) {
           return DAG.getSetCC(VT, N1.getOperand(0),
                           DAG.getConstant(0, N1.getValueType()), Cond);
-        } else {
+        } else if (N1.Val->hasOneUse()) {
           assert(N1.getOpcode() == ISD::SUB && "Unexpected operation!");
           // X == (Z-X)  --> X<<1 == Z
           SDOperand SH = DAG.getNode(ISD::SHL, N1.getValueType(), N0,