Changes in directory llvm/lib/Target:
TargetLowering.cpp updated: 1.27 -> 1.28 --- Log message: Implement some feedback from sabre --- Diffs of the changes: (+5 -5) TargetLowering.cpp | 10 +++++----- 1 files changed, 5 insertions(+), 5 deletions(-) Index: llvm/lib/Target/TargetLowering.cpp diff -u llvm/lib/Target/TargetLowering.cpp:1.27 llvm/lib/Target/TargetLowering.cpp:1.28 --- llvm/lib/Target/TargetLowering.cpp:1.27 Fri Feb 3 16:24:05 2006 +++ llvm/lib/Target/TargetLowering.cpp Fri Feb 3 16:38:07 2006 @@ -135,14 +135,14 @@ /// set operation such as a sign extend or or/xor with constant whose only /// use is Op. If it returns true, the old node that sets bits which are /// not demanded is returned in Old, and its replacement node is returned in -/// New, such that callers of SetBitsAreZero may call CombineTo on them if +/// New, such that callers of DemandedBitsAreZero may call CombineTo on them if /// desired. bool TargetLowering::DemandedBitsAreZero(const SDOperand &Op, uint64_t Mask, SDOperand &Old, SDOperand &New, SelectionDAG &DAG) { // If the operation has more than one use, we're not interested in it. // Tracking down and checking all uses would be problematic and slow. - if (!Op.hasOneUse()) + if (!Op.Val->hasOneUse()) return false; switch (Op.getOpcode()) { @@ -164,11 +164,11 @@ MVT::ValueType EVT = cast<VTSDNode>(Op.getOperand(1))->getVT(); unsigned ExtendBits = MVT::getSizeInBits(EVT); // If we're extending from something smaller than MVT::i64 and all of the - // sign extension bits are masked, return true and set New to be a zero - // extend inreg from the same type. + // sign extension bits are masked, return true and set New to be the + // first operand, since we no longer care what the high bits are. if (ExtendBits < 64 && ((Mask & (~0ULL << ExtendBits)) == 0)) { Old = Op; - New = DAG.getZeroExtendInReg(Op.getOperand(0), EVT); + New = Op.getOperand(0); return true; } break; _______________________________________________ llvm-commits mailing list llvm-commits@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits