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Forgot to propagate debug loc info here.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63371 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2009-01-30 02:49:26 +00:00
parent 3311a1f8f0
commit 73e16b2869
1 changed files with 4 additions and 2 deletions
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4
lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@ -1306,7 +1306,7 @@ SDValue DAGCombiner::visitMUL(SDNode *N) {
// single-use add), we should put the negate there. // single-use add), we should put the negate there.
return DAG.getNode(ISD::SUB, N->getDebugLoc(), VT, return DAG.getNode(ISD::SUB, N->getDebugLoc(), VT,
DAG.getConstant(0, VT), DAG.getConstant(0, VT),
DAG.getNode(ISD::SHL, VT, N0, DAG.getNode(ISD::SHL, N->getDebugLoc(), VT, N0,
DAG.getConstant(Log2_64(-N1C->getSExtValue()), DAG.getConstant(Log2_64(-N1C->getSExtValue()),
TLI.getShiftAmountTy()))); TLI.getShiftAmountTy())));
// (mul (shl X, c1), c2) -> (mul X, c2 << c1) // (mul (shl X, c1), c2) -> (mul X, c2 << c1)
@ -1332,6 +1332,7 @@ SDValue DAGCombiner::visitMUL(SDNode *N) {
N1.getNode()->hasOneUse()) { N1.getNode()->hasOneUse()) {
Sh = N1; Y = N0; Sh = N1; Y = N0;
} }
if (Sh.getNode()) { if (Sh.getNode()) {
SDValue Mul = DAG.getNode(ISD::MUL, N->getDebugLoc(), VT, SDValue Mul = DAG.getNode(ISD::MUL, N->getDebugLoc(), VT,
Sh.getOperand(0), Y); Sh.getOperand(0), Y);
@ -1339,6 +1340,7 @@ SDValue DAGCombiner::visitMUL(SDNode *N) {
Mul, Sh.getOperand(1)); Mul, Sh.getOperand(1));
} }
} }
// fold (mul (add x, c1), c2) -> (add (mul x, c2), c1*c2) // fold (mul (add x, c1), c2) -> (add (mul x, c2), c1*c2)
if (N1C && N0.getOpcode() == ISD::ADD && N0.getNode()->hasOneUse() && if (N1C && N0.getOpcode() == ISD::ADD && N0.getNode()->hasOneUse() &&
isa<ConstantSDNode>(N0.getOperand(1))) isa<ConstantSDNode>(N0.getOperand(1)))