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Revert this dag combine change:
Fold (zext (and x, cst)) -> (and (zext x), cst) DAG combiner likes to optimize expression in the other way so this would end up cause an infinite looping. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91574 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -3202,19 +3202,6 @@ SDValue DAGCombiner::visitZERO_EXTEND(SDNode *N) {
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X, DAG.getConstant(Mask, VT));
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}
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// Fold (zext (and x, cst)) -> (and (zext x), cst)
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if (N0.getOpcode() == ISD::AND &&
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N0.getOperand(1).getOpcode() == ISD::Constant &&
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N0.getOperand(0).getOpcode() != ISD::TRUNCATE &&
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N0.getOperand(0).hasOneUse()) {
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APInt Mask = cast<ConstantSDNode>(N0.getOperand(1))->getAPIntValue();
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Mask.zext(VT.getSizeInBits());
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return DAG.getNode(ISD::AND, N->getDebugLoc(), VT,
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DAG.getNode(ISD::ZERO_EXTEND, N->getDebugLoc(), VT,
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N0.getOperand(0)),
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DAG.getConstant(Mask, VT));
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}
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// fold (zext (load x)) -> (zext (truncate (zextload x)))
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if (ISD::isNON_EXTLoad(N0.getNode()) &&
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((!LegalOperations && !cast<LoadSDNode>(N0)->isVolatile()) ||
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@ -1,9 +1,9 @@
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; RUN: llc < %s -march=cellspu > %t1.s
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; RUN: grep and %t1.s | count 230
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; RUN: grep and %t1.s | count 234
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; RUN: grep andc %t1.s | count 85
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; RUN: grep andi %t1.s | count 39
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; RUN: grep andhi %t1.s | count 28
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; RUN: grep andbi %t1.s | count 2
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; RUN: grep andi %t1.s | count 37
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; RUN: grep andhi %t1.s | count 30
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; RUN: grep andbi %t1.s | count 4
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target datalayout = "E-p:32:32:128-f64:64:128-f32:32:128-i64:32:128-i32:32:128-i16:16:128-i8:8:128-i1:8:128-a0:0:128-v128:128:128-s0:128:128"
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target triple = "spu"
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