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Delete an unused variable.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91287 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-12-14 17:08:09 +00:00
parent 440b40d865
commit 6dc1ef3923
1 changed files with 1 additions and 10 deletions
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11
lib/Transforms/Scalar/LoopStrengthReduce.cpp
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@ -90,10 +90,6 @@ namespace {
/// particular stride.
std::map<const SCEV *, IVsOfOneStride> IVsByStride;
/// StrideNoReuse - Keep track of all the strides whose ivs cannot be
/// reused (nor should they be rewritten to reuse other strides).
SmallSet<const SCEV *, 4> StrideNoReuse;
/// DeadInsts - Keep track of instructions we may have made dead, so that
/// we can remove them after we are done working.
SmallVector<WeakVH, 16> DeadInsts;
@ -983,17 +979,13 @@ const SCEV *LoopStrengthReduce::CheckForIVReuse(bool HasBaseReg,
const SCEV *const &Stride,
IVExpr &IV, const Type *Ty,
const std::vector<BasedUser>& UsersToProcess) {
if (StrideNoReuse.count(Stride))
return SE->getIntegerSCEV(0, Stride->getType());
if (const SCEVConstant *SC = dyn_cast<SCEVConstant>(Stride)) {
int64_t SInt = SC->getValue()->getSExtValue();
for (unsigned NewStride = 0, e = IU->StrideOrder.size();
NewStride != e; ++NewStride) {
std::map<const SCEV *, IVsOfOneStride>::iterator SI =
IVsByStride.find(IU->StrideOrder[NewStride]);
if (SI == IVsByStride.end() || !isa<SCEVConstant>(SI->first) ||
StrideNoReuse.count(SI->first))
if (SI == IVsByStride.end() || !isa<SCEVConstant>(SI->first))
continue;
// The other stride has no uses, don't reuse it.
std::map<const SCEV *, IVUsersOfOneStride *>::iterator UI =
@ -2766,7 +2758,6 @@ bool LoopStrengthReduce::runOnLoop(Loop *L, LPPassManager &LPM) {
// We're done analyzing this loop; release all the state we built up for it.
IVsByStride.clear();
StrideNoReuse.clear();
// Clean up after ourselves
if (!DeadInsts.empty())