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[SCEV] Use cast<> instead of dyn_cast; NFC

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llvm-svn: 272758
This commit is contained in:
Sanjoy Das
2016-06-15 06:53:51 +00:00
parent a4c2d150d0
commit aba989f454
1 changed files with 2 additions and 4 deletions
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6
llvm/lib/Analysis/ScalarEvolution.cpp
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@@ -8674,8 +8674,7 @@ ScalarEvolution::howManyLessThans(const SCEV *LHS, const SCEV *RHS,
// overflow, in which case if RHS - Start is a constant, we don't need to // overflow, in which case if RHS - Start is a constant, we don't need to
// do a max operation since we can just figure it out statically // do a max operation since we can just figure it out statically
if (NoWrap && isa<SCEVConstant>(Diff)) { if (NoWrap && isa<SCEVConstant>(Diff)) {
APInt D = dyn_cast<const SCEVConstant>(Diff)->getAPInt(); if (cast<SCEVConstant>(Diff)->getAPInt().isNegative())
if (D.isNegative())
End = Start; End = Start;
} else } else
End = IsSigned ? getSMaxExpr(RHS, Start) End = IsSigned ? getSMaxExpr(RHS, Start)
@@ -8761,8 +8760,7 @@ ScalarEvolution::howManyGreaterThans(const SCEV *LHS, const SCEV *RHS,
// overflow, in which case if RHS - Start is a constant, we don't need to // overflow, in which case if RHS - Start is a constant, we don't need to
// do a max operation since we can just figure it out statically // do a max operation since we can just figure it out statically
if (NoWrap && isa<SCEVConstant>(Diff)) { if (NoWrap && isa<SCEVConstant>(Diff)) {
APInt D = dyn_cast<const SCEVConstant>(Diff)->getAPInt(); if (!cast<SCEVConstant>(Diff)->getAPInt().isNegative())
if (!D.isNegative())
End = Start; End = Start;
} else } else
End = IsSigned ? getSMinExpr(RHS, Start) End = IsSigned ? getSMinExpr(RHS, Start)