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80 column fixes.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52316 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matthijs Kooijman 2008-06-16 12:57:37 +00:00
parent b23d5adbc8
commit 710eb236e6
2 changed files with 33 additions and 16 deletions
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46
lib/Analysis/ValueTracking.cpp
View File

@ -771,7 +771,8 @@ Value *BuildSubAggregate(Value *From, Value* To, const Type *IndexedType,
for (unsigned i = 0, e = STy->getNumElements(); i != e; ++i) {
// Process each struct element recursively
Idxs.push_back(i);
To = BuildSubAggregate(From, To, STy->getElementType(i), Idxs, IdxSkip, InsertBefore);
To = BuildSubAggregate(From, To, STy->getElementType(i), Idxs, IdxSkip,
InsertBefore);
Idxs.pop_back();
}
return To;
@ -779,8 +780,13 @@ Value *BuildSubAggregate(Value *From, Value* To, const Type *IndexedType,
// Base case, the type indexed by SourceIdxs is not a struct
// Load the value from the nested struct into the sub struct (and skip
// IdxSkip indices when indexing the sub struct).
Instruction *V = llvm::ExtractValueInst::Create(From, Idxs.begin(), Idxs.end(), "tmp", &InsertBefore);
Instruction *Ins = llvm::InsertValueInst::Create(To, V, Idxs.begin() + IdxSkip, Idxs.end(), "tmp", &InsertBefore);
Instruction *V = llvm::ExtractValueInst::Create(From, Idxs.begin(),
Idxs.end(), "tmp",
&InsertBefore);
Instruction *Ins = llvm::InsertValueInst::Create(To, V,
Idxs.begin() + IdxSkip,
Idxs.end(), "tmp",
&InsertBefore);
return Ins;
}
}
@ -797,8 +803,11 @@ Value *BuildSubAggregate(Value *From, Value* To, const Type *IndexedType,
// insertvalue instructions that fill the nested struct.
//
// Any inserted instructions are inserted before InsertBefore
Value *BuildSubAggregate(Value *From, const unsigned *idx_begin, const unsigned *idx_end, Instruction &InsertBefore) {
const Type *IndexedType = ExtractValueInst::getIndexedType(From->getType(), idx_begin, idx_end);
Value *BuildSubAggregate(Value *From, const unsigned *idx_begin,
const unsigned *idx_end, Instruction &InsertBefore) {
const Type *IndexedType = ExtractValueInst::getIndexedType(From->getType(),
idx_begin,
idx_end);
Value *To = UndefValue::get(IndexedType);
SmallVector<unsigned, 10> Idxs(idx_begin, idx_end);
unsigned IdxSkip = Idxs.size();
@ -806,9 +815,9 @@ Value *BuildSubAggregate(Value *From, const unsigned *idx_begin, const unsigned
return BuildSubAggregate(From, To, IndexedType, Idxs, IdxSkip, InsertBefore);
}
/// FindInsertedValue - Given an aggregrate and an sequence of indices, see if the
/// scalar value indexed is already around as a register, for example if it were
/// inserted directly into the aggregrate.
/// FindInsertedValue - Given an aggregrate and an sequence of indices, see if
/// the scalar value indexed is already around as a register, for example if it
/// were inserted directly into the aggregrate.
Value *llvm::FindInsertedValue(Value *V, const unsigned *idx_begin,
const unsigned *idx_end, Instruction &InsertBefore) {
// Nothing to index? Just return V then (this is useful at the end of our
@ -833,12 +842,14 @@ Value *llvm::FindInsertedValue(Value *V, const unsigned *idx_begin,
else if (Constant *C = dyn_cast<Constant>(V)) {
if (isa<ConstantArray>(C) || isa<ConstantStruct>(C))
// Recursively process this constant
return FindInsertedValue(C->getOperand(*idx_begin), ++idx_begin, idx_end, InsertBefore);
return FindInsertedValue(C->getOperand(*idx_begin), ++idx_begin, idx_end,
InsertBefore);
} else if (InsertValueInst *I = dyn_cast<InsertValueInst>(V)) {
// Loop the indices for the insertvalue instruction in parallel with the
// requested indices
const unsigned *req_idx = idx_begin;
for (const unsigned *i = I->idx_begin(), *e = I->idx_end(); i != e; ++i, ++req_idx) {
for (const unsigned *i = I->idx_begin(), *e = I->idx_end();
i != e; ++i, ++req_idx) {
if (req_idx == idx_end)
// The requested index is a part of a nested aggregate. Handle this
// specially.
@ -848,12 +859,14 @@ Value *llvm::FindInsertedValue(Value *V, const unsigned *idx_begin,
// See if the (aggregrate) value inserted into has the value we are
// looking for, then.
if (*req_idx != *i)
return FindInsertedValue(I->getAggregateOperand(), idx_begin, idx_end, InsertBefore);
return FindInsertedValue(I->getAggregateOperand(), idx_begin, idx_end,
InsertBefore);
}
// If we end up here, the indices of the insertvalue match with those
// requested (though possibly only partially). Now we recursively look at
// the inserted value, passing any remaining indices.
return FindInsertedValue(I->getInsertedValueOperand(), req_idx, idx_end, InsertBefore);
return FindInsertedValue(I->getInsertedValueOperand(), req_idx, idx_end,
InsertBefore);
} else if (ExtractValueInst *I = dyn_cast<ExtractValueInst>(V)) {
// If we're extracting a value from an aggregrate that was extracted from
// something else, we can extract from that something else directly instead.
@ -868,16 +881,19 @@ Value *llvm::FindInsertedValue(Value *V, const unsigned *idx_begin,
// Start inserting at the beginning
unsigned *new_end = new_begin;
// Add indices from the extract value instruction
for (const unsigned *i = I->idx_begin(), *e = I->idx_end(); i != e; ++i, ++new_end)
for (const unsigned *i = I->idx_begin(), *e = I->idx_end();
i != e; ++i, ++new_end)
*new_end = *i;
// Add requested indices
for (const unsigned *i = idx_begin, *e = idx_end; i != e; ++i, ++new_end)
*new_end = *i;
assert((unsigned)(new_end - new_begin) == size && "Number of indices added not correct?");
assert((unsigned)(new_end - new_begin) == size
&& "Number of indices added not correct?");
return FindInsertedValue(I->getAggregateOperand(), new_begin, new_end, InsertBefore);
return FindInsertedValue(I->getAggregateOperand(), new_begin, new_end,
InsertBefore);
}
// Otherwise, we don't know (such as, extracting from a function return value
// or load instruction)

3
lib/Transforms/Scalar/InstructionCombining.cpp
View File

@ -10520,7 +10520,8 @@ Instruction *InstCombiner::visitSwitchInst(SwitchInst &SI) {
Instruction *InstCombiner::visitExtractValueInst(ExtractValueInst &EV) {
// See if we are trying to extract a known value. If so, use that instead.
if (Value *Elt = FindInsertedValue(EV.getOperand(0), EV.idx_begin(), EV.idx_end(), EV))
if (Value *Elt = FindInsertedValue(EV.getOperand(0), EV.idx_begin(),
EV.idx_end(), EV))
return ReplaceInstUsesWith(EV, Elt);
// No changes