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[X86] getTargetVShiftByConstNode - reduce variable scope. NFCI.

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Fixes cppcheck warning.

llvm-svn: 364561
This commit is contained in:
Simon Pilgrim 2019-06-27 16:33:44 +00:00
parent d49d428271
commit b556280f2a
1 changed files with 7 additions and 8 deletions
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15
lib/Target/X86/X86ISelLowering.cpp
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@ -21985,42 +21985,41 @@ static SDValue getTargetVShiftByConstNode(unsigned Opc, const SDLoc &dl, MVT VT,
if (ISD::isBuildVectorOfConstantSDNodes(SrcOp.getNode())) {
SmallVector<SDValue, 8> Elts;
unsigned NumElts = SrcOp->getNumOperands();
ConstantSDNode *ND;
switch(Opc) {
switch (Opc) {
default: llvm_unreachable("Unknown opcode!");
case X86ISD::VSHLI:
for (unsigned i=0; i!=NumElts; ++i) {
for (unsigned i = 0; i != NumElts; ++i) {
SDValue CurrentOp = SrcOp->getOperand(i);
if (CurrentOp->isUndef()) {
Elts.push_back(CurrentOp);
continue;
}
ND = cast<ConstantSDNode>(CurrentOp);
auto *ND = cast<ConstantSDNode>(CurrentOp);
const APInt &C = ND->getAPIntValue();
Elts.push_back(DAG.getConstant(C.shl(ShiftAmt), dl, ElementType));
}
break;
case X86ISD::VSRLI:
for (unsigned i=0; i!=NumElts; ++i) {
for (unsigned i = 0; i != NumElts; ++i) {
SDValue CurrentOp = SrcOp->getOperand(i);
if (CurrentOp->isUndef()) {
Elts.push_back(CurrentOp);
continue;
}
ND = cast<ConstantSDNode>(CurrentOp);
auto *ND = cast<ConstantSDNode>(CurrentOp);
const APInt &C = ND->getAPIntValue();
Elts.push_back(DAG.getConstant(C.lshr(ShiftAmt), dl, ElementType));
}
break;
case X86ISD::VSRAI:
for (unsigned i=0; i!=NumElts; ++i) {
for (unsigned i = 0; i != NumElts; ++i) {
SDValue CurrentOp = SrcOp->getOperand(i);
if (CurrentOp->isUndef()) {
Elts.push_back(CurrentOp);
continue;
}
ND = cast<ConstantSDNode>(CurrentOp);
auto *ND = cast<ConstantSDNode>(CurrentOp);
const APInt &C = ND->getAPIntValue();
Elts.push_back(DAG.getConstant(C.ashr(ShiftAmt), dl, ElementType));
}