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LSR minor bug fix in RateRegister.

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No test case. Noticed by inspection and I doubt it ever affects the
outcome of the overall heuristic, let alone final codegen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140431 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick 2011-09-23 23:05:19 +00:00
parent b0387f9e06
commit b5b7c96ce4
1 changed files with 1 additions and 1 deletions
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2
lib/Transforms/Scalar/LoopStrengthReduce.cpp
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@ -728,7 +728,7 @@ void Cost::RateRegister(const SCEV *Reg,
// Add the step value register, if it needs one.
// TODO: The non-affine case isn't precisely modeled here.
if (!AR->isAffine() || !isa<SCEVConstant>(AR->getOperand(1)))
if (!Regs.count(AR->getStart()))
if (!Regs.count(AR->getOperand(1)))
RateRegister(AR->getOperand(1), Regs, L, SE, DT);
}
++NumRegs;