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Prefer SmallVector::append/insert over push_back loops.

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Same functionality, but hoists the vector growth out of the loop.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229500 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer
2015-02-17 15:29:18 +00:00
parent 93e8e46202
commit 1a50a12b43
27 changed files with 72 additions and 159 deletions
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13
lib/IR/DIBuilder.cpp
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@@ -94,9 +94,8 @@ void DIBuilder::finalize() {
for (unsigned i = 0, e = SPs.getNumElements(); i != e; ++i) {
DISubprogram SP(SPs.getElement(i));
if (MDNode *Temp = SP.getVariablesNodes()) {
SmallVector<Metadata *, 4> Variables;
for (Metadata *V : PreservedVariables.lookup(SP))
Variables.push_back(V);
const auto &PV = PreservedVariables.lookup(SP);
SmallVector<Metadata *, 4> Variables(PV.begin(), PV.end());
DIArray AV = getOrCreateArray(Variables);
DIType(Temp).replaceAllUsesWith(AV);
}
@@ -105,9 +104,8 @@ void DIBuilder::finalize() {
DIArray GVs = getOrCreateArray(AllGVs);
DIType(TempGVs).replaceAllUsesWith(GVs);
SmallVector<Metadata *, 16> RetainValuesI;
for (unsigned I = 0, E = AllImportedModules.size(); I < E; I++)
RetainValuesI.push_back(AllImportedModules[I]);
SmallVector<Metadata *, 16> RetainValuesI(AllImportedModules.begin(),
AllImportedModules.end());
DIArray IMs = getOrCreateArray(RetainValuesI);
DIType(TempImportedModules).replaceAllUsesWith(IMs);
@@ -758,8 +756,7 @@ static DIType createTypeWithFlags(LLVMContext &Context, DIType Ty,
assert(N && "Unexpected input DIType!");
// Update header field.
Elts.push_back(setTypeFlagsInHeader(Ty.getHeader(), FlagsToSet).get(Context));
for (unsigned I = 1, E = N->getNumOperands(); I != E; ++I)
Elts.push_back(N->getOperand(I));
Elts.append(N->op_begin() + 1, N->op_end());
return DIType(MDNode::get(Context, Elts));
}