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| author | Chris Lattner <sabre@nondot.org> | 2005-01-18 21:57:59 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2005-01-18 21:57:59 +0000 |
| commit | d5d56825123665b60d4eada0a4ad7d0adc5cf3a3 (patch) | |
| tree | 4dc51114ff1061264fb9dc1657e1da3ace415a97 | |
| parent | 477c9318526fd79794fdb058cd4189a79441cbcb (diff) | |
Zero is cheaper than sign extend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19675 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 8c6c10d583..52e723a57e 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -793,7 +793,7 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { case ISD::SIGN_EXTEND: Result = PromoteOp(Node->getOperand(0)); // NOTE: Any extend would work here... - Result = DAG.getNode(ISD::SIGN_EXTEND, Op.getValueType(), Result); + Result = DAG.getNode(ISD::ZERO_EXTEND, Op.getValueType(), Result); Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), Result, Node->getOperand(0).getValueType()); break; |