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[Reassociate] use dyn_cast instead of isa+cast; NFCI

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llvm-svn: 318212
This commit is contained in:
Sanjay Patel 2017-11-14 23:03:56 +00:00
parent a0cefd153d
commit 5cbaa253c7
1 changed files with 9 additions and 9 deletions
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18
lib/Transforms/Scalar/Reassociate.cpp
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@ -143,20 +143,20 @@ XorOpnd::XorOpnd(Value *V) {
/// Return true if V is an instruction of the specified opcode and if it
/// only has one use.
static BinaryOperator *isReassociableOp(Value *V, unsigned Opcode) {
if (V->hasOneUse() && isa<Instruction>(V) &&
cast<Instruction>(V)->getOpcode() == Opcode &&
(!isa<FPMathOperator>(V) || cast<Instruction>(V)->isFast()))
return cast<BinaryOperator>(V);
auto *I = dyn_cast<Instruction>(V);
if (I && I->hasOneUse() && I->getOpcode() == Opcode)
if (!isa<FPMathOperator>(I) || I->isFast())
return cast<BinaryOperator>(I);
return nullptr;
}
static BinaryOperator *isReassociableOp(Value *V, unsigned Opcode1,
unsigned Opcode2) {
if (V->hasOneUse() && isa<Instruction>(V) &&
(cast<Instruction>(V)->getOpcode() == Opcode1 ||
cast<Instruction>(V)->getOpcode() == Opcode2) &&
(!isa<FPMathOperator>(V) || cast<Instruction>(V)->isFast()))
return cast<BinaryOperator>(V);
auto *I = dyn_cast<Instruction>(V);
if (I && I->hasOneUse() &&
(I->getOpcode() == Opcode1 || I->getOpcode() == Opcode2))
if (!isa<FPMathOperator>(I) || I->isFast())
return cast<BinaryOperator>(I);
return nullptr;
}