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Always merge profitable shifts on A9, not just when they have a single use.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141248 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Cameron Zwarich 2011-10-05 23:39:02 +00:00
parent d78ebe1e12
commit 8f8aa815b4
1 changed files with 2 additions and 6 deletions
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8
lib/Target/ARM/ARMISelDAGToDAG.cpp
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@ -555,9 +555,7 @@ bool ARMDAGToDAGISel::SelectLdStSOReg(SDValue N, SDValue &Base, SDValue &Offset,
if (ConstantSDNode *Sh = if (ConstantSDNode *Sh =
dyn_cast<ConstantSDNode>(N.getOperand(0).getOperand(1))) { dyn_cast<ConstantSDNode>(N.getOperand(0).getOperand(1))) {
ShAmt = Sh->getZExtValue(); ShAmt = Sh->getZExtValue();
if (!Subtarget->isCortexA9() || if (isShifterOpProfitable(N.getOperand(0), ShOpcVal, ShAmt)) {
(N.hasOneUse() &&
isShifterOpProfitable(N.getOperand(0), ShOpcVal, ShAmt))) {
Offset = N.getOperand(0).getOperand(0); Offset = N.getOperand(0).getOperand(0);
Base = N.getOperand(1); Base = N.getOperand(1);
} else { } else {
@ -697,9 +695,7 @@ AddrMode2Type ARMDAGToDAGISel::SelectAddrMode2Worker(SDValue N,
if (ConstantSDNode *Sh = if (ConstantSDNode *Sh =
dyn_cast<ConstantSDNode>(N.getOperand(0).getOperand(1))) { dyn_cast<ConstantSDNode>(N.getOperand(0).getOperand(1))) {
ShAmt = Sh->getZExtValue(); ShAmt = Sh->getZExtValue();
if (!Subtarget->isCortexA9() || if (isShifterOpProfitable(N.getOperand(0), ShOpcVal, ShAmt)) {
(N.hasOneUse() &&
isShifterOpProfitable(N.getOperand(0), ShOpcVal, ShAmt))) {
Offset = N.getOperand(0).getOperand(0); Offset = N.getOperand(0).getOperand(0);
Base = N.getOperand(1); Base = N.getOperand(1);
} else { } else {