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[RewriteStatepointsForGC] Reduce indentation via early continue [NFC]

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llvm-svn: 230829
This commit is contained in:
Philip Reames 2015-02-28 00:54:41 +00:00
parent c0081494c4
commit 5658248d0a
1 changed files with 36 additions and 35 deletions
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71
lib/Transforms/Scalar/RewriteStatepointsForGC.cpp
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@ -782,41 +782,42 @@ static Value *findBasePointer(Value *I, DefiningValueMapTy &cache,
PhiState state = Pair.second;
assert(!isKnownBaseResult(v) && "why did it get added?");
assert(!state.isUnknown() && "Optimistic algorithm didn't complete!");
if (state.isConflict()) {
if (isa<PHINode>(v)) {
int num_preds =
std::distance(pred_begin(v->getParent()), pred_end(v->getParent()));
assert(num_preds > 0 && "how did we reach here");
PHINode *phi = PHINode::Create(v->getType(), num_preds, "base_phi", v);
NewInsertedDefs.insert(phi);
// Add metadata marking this as a base value
auto *const_1 = ConstantInt::get(
Type::getInt32Ty(
v->getParent()->getParent()->getParent()->getContext()),
1);
auto MDConst = ConstantAsMetadata::get(const_1);
MDNode *md = MDNode::get(
v->getParent()->getParent()->getParent()->getContext(), MDConst);
phi->setMetadata("is_base_value", md);
states[v] = PhiState(PhiState::Conflict, phi);
} else if (SelectInst *sel = dyn_cast<SelectInst>(v)) {
// The undef will be replaced later
UndefValue *undef = UndefValue::get(sel->getType());
SelectInst *basesel = SelectInst::Create(sel->getCondition(), undef,
undef, "base_select", sel);
NewInsertedDefs.insert(basesel);
// Add metadata marking this as a base value
auto *const_1 = ConstantInt::get(
Type::getInt32Ty(
v->getParent()->getParent()->getParent()->getContext()),
1);
auto MDConst = ConstantAsMetadata::get(const_1);
MDNode *md = MDNode::get(
v->getParent()->getParent()->getParent()->getContext(), MDConst);
basesel->setMetadata("is_base_value", md);
states[v] = PhiState(PhiState::Conflict, basesel);
} else
llvm_unreachable("unknown conflict type");
if (!state.isConflict())
continue;
if (isa<PHINode>(v)) {
int num_preds =
std::distance(pred_begin(v->getParent()), pred_end(v->getParent()));
assert(num_preds > 0 && "how did we reach here");
PHINode *phi = PHINode::Create(v->getType(), num_preds, "base_phi", v);
NewInsertedDefs.insert(phi);
// Add metadata marking this as a base value
auto *const_1 = ConstantInt::get(
Type::getInt32Ty(
v->getParent()->getParent()->getParent()->getContext()),
1);
auto MDConst = ConstantAsMetadata::get(const_1);
MDNode *md = MDNode::get(
v->getParent()->getParent()->getParent()->getContext(), MDConst);
phi->setMetadata("is_base_value", md);
states[v] = PhiState(PhiState::Conflict, phi);
} else {
SelectInst *sel = cast<SelectInst>(v);
// The undef will be replaced later
UndefValue *undef = UndefValue::get(sel->getType());
SelectInst *basesel = SelectInst::Create(sel->getCondition(), undef,
undef, "base_select", sel);
NewInsertedDefs.insert(basesel);
// Add metadata marking this as a base value
auto *const_1 = ConstantInt::get(
Type::getInt32Ty(
v->getParent()->getParent()->getParent()->getContext()),
1);
auto MDConst = ConstantAsMetadata::get(const_1);
MDNode *md = MDNode::get(
v->getParent()->getParent()->getParent()->getContext(), MDConst);
basesel->setMetadata("is_base_value", md);
states[v] = PhiState(PhiState::Conflict, basesel);
}
}