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Use dyn_cast instead of isa and cast. 

No functionality change.

llvm-svn: 164924
This commit is contained in:
Jakub Staszak 2012-09-30 21:24:57 +00:00
parent f064b65a94
commit ec5a2f248f
1 changed files with 8 additions and 10 deletions
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18
llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
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@ -136,13 +136,11 @@ bool ISD::isBuildVectorAllOnes(const SDNode *N) {
// constants are. // constants are.
SDValue NotZero = N->getOperand(i); SDValue NotZero = N->getOperand(i);
unsigned EltSize = N->getValueType(0).getVectorElementType().getSizeInBits(); unsigned EltSize = N->getValueType(0).getVectorElementType().getSizeInBits();
if (isa<ConstantSDNode>(NotZero)) { if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(NotZero)) {
if (cast<ConstantSDNode>(NotZero)->getAPIntValue().countTrailingOnes() < if (CN->getAPIntValue().countTrailingOnes() < EltSize)
EltSize)
return false; return false;
} else if (isa<ConstantFPSDNode>(NotZero)) { } else if (ConstantFPSDNode *CFPN = dyn_cast<ConstantFPSDNode>(NotZero)) {
if (cast<ConstantFPSDNode>(NotZero)->getValueAPF() if (CFPN->getValueAPF().bitcastToAPInt().countTrailingOnes() < EltSize)
.bitcastToAPInt().countTrailingOnes() < EltSize)
return false; return false;
} else } else
return false; return false;
@ -179,11 +177,11 @@ bool ISD::isBuildVectorAllZeros(const SDNode *N) {
// Do not accept build_vectors that aren't all constants or which have non-0 // Do not accept build_vectors that aren't all constants or which have non-0
// elements. // elements.
SDValue Zero = N->getOperand(i); SDValue Zero = N->getOperand(i);
if (isa<ConstantSDNode>(Zero)) { if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Zero)) {
if (!cast<ConstantSDNode>(Zero)->isNullValue()) if (!CN->isNullValue())
return false; return false;
} else if (isa<ConstantFPSDNode>(Zero)) { } else if (ConstantFPSDNode *CFPN = dyn_cast<ConstantFPSDNode>(Zero)) {
if (!cast<ConstantFPSDNode>(Zero)->getValueAPF().isPosZero()) if (!CFPN->getValueAPF().isPosZero())
return false; return false;
} else } else
return false; return false;