[llvm-commits] CVS: llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
Chris Lattner
lattner at cs.uiuc.edu
Tue Aug 30 09:56:31 PDT 2005
Changes in directory llvm/lib/CodeGen/SelectionDAG:
LegalizeDAG.cpp updated: 1.178 -> 1.179
---
Log message:
Fix a miscompile of PtrDist/bc. Sign extending bools is not the right thing,
at least tends to expose problems elsewhere.
---
Diffs of the changes: (+4 -1)
LegalizeDAG.cpp | 5 ++++-
1 files changed, 4 insertions(+), 1 deletion(-)
Index: llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
diff -u llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.178 llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.179
--- llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.178 Mon Aug 29 21:44:00 2005
+++ llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp Tue Aug 30 11:56:19 2005
@@ -2011,7 +2011,10 @@
Result = DAG.getNode(ISD::UNDEF, NVT);
break;
case ISD::Constant:
- Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op);
+ if (VT != MVT::i1)
+ Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op);
+ else
+ Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op);
assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?");
break;
case ISD::ConstantFP:
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