Changes in directory llvm/lib/CodeGen/SelectionDAG:
LegalizeDAG.cpp updated: 1.295 -> 1.296 --- Log message: don't insert an and node if it isn't needed here, this can prevent folding of lowered target nodes. --- Diffs of the changes: (+3 -1) LegalizeDAG.cpp | 4 +++- 1 files changed, 3 insertions(+), 1 deletion(-) Index: llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp diff -u llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.295 llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.296 --- llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.295 Sun Jan 29 15:02:23 2006 +++ llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp Sun Jan 29 22:22:28 2006 @@ -1284,7 +1284,9 @@ } else { // Make sure the condition is either zero or one. It may have been // promoted from something else. - Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); + unsigned NumBits = MVT::getSizeInBits(Tmp1.getValueType()); + if (!TLI.MaskedValueIsZero(Tmp1, (~0ULL >> (64-NumBits))^1)) + Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); Result = DAG.getSelectCC(Tmp1, DAG.getConstant(0, Tmp1.getValueType()), Tmp2, Tmp3, ISD::SETNE); _______________________________________________ llvm-commits mailing list llvm-commits@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits