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Use A.append(...) instead of A.insert(A.end(), ...) when A is a

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SmallVector, and other SmallVector simplifications.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106452 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2010-06-21 19:47:52 +00:00
parent 658ebcc7ec
commit 403a8cdda5
9 changed files with 26 additions and 29 deletions
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lib/Transforms/Scalar/LoopStrengthReduce.cpp
+6 -7
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@@ -1951,7 +1951,7 @@ void LSRInstance::CollectInterestingTypesAndFactors() {
Strides.insert(AR->getStepRecurrence(SE));
Worklist.push_back(AR->getStart());
} else if (const SCEVAddExpr *Add = dyn_cast<SCEVAddExpr>(S)) {
Worklist.insert(Worklist.end(), Add->op_begin(), Add->op_end());
Worklist.append(Add->op_begin(), Add->op_end());
}
} while (!Worklist.empty());
}
@@ -2118,7 +2118,7 @@ LSRInstance::CollectLoopInvariantFixupsAndFormulae() {
const SCEV *S = Worklist.pop_back_val();
if (const SCEVNAryExpr *N = dyn_cast<SCEVNAryExpr>(S))
Worklist.insert(Worklist.end(), N->op_begin(), N->op_end());
Worklist.append(N->op_begin(), N->op_end());
else if (const SCEVCastExpr *C = dyn_cast<SCEVCastExpr>(S))
Worklist.push_back(C->getOperand());
else if (const SCEVUDivExpr *D = dyn_cast<SCEVUDivExpr>(S)) {
@@ -2248,11 +2248,10 @@ void LSRInstance::GenerateReassociations(LSRUse &LU, unsigned LUIdx,
continue;
// Collect all operands except *J.
SmallVector<const SCEV *, 8> InnerAddOps;
for (SmallVectorImpl<const SCEV *>::const_iterator K = AddOps.begin(),
KE = AddOps.end(); K != KE; ++K)
if (K != J)
InnerAddOps.push_back(*K);
SmallVector<const SCEV *, 8> InnerAddOps
( ((const SmallVector<const SCEV *, 8> &)AddOps).begin(), J);
InnerAddOps.append
(next(J), ((const SmallVector<const SCEV *, 8> &)AddOps).end());
// Don't leave just a constant behind in a register if the constant could
// be folded into an immediate field.