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[turbofan] Cleanup in simplified lowering.

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Review-Url: https://codereview.chromium.org/2337283002
Cr-Commit-Position: refs/heads/master@{#39423}
This commit is contained in:
jarin 2016-09-14 10:26:06 -07:00 committed by Commit bot
parent d825492bb6
commit cfc0dc4ef8
1 changed files with 27 additions and 51 deletions
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78
src/compiler/simplified-lowering.cc
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@ -807,41 +807,10 @@ class RepresentationSelector {
VisitBinop(node, UseInfo::TruncatingFloat64(),
MachineRepresentation::kFloat64);
}
void VisitInt32Binop(Node* node) {
VisitBinop(node, UseInfo::TruncatingWord32(),
MachineRepresentation::kWord32);
}
void VisitWord32TruncatingBinop(Node* node) {
VisitBinop(node, UseInfo::TruncatingWord32(),
MachineRepresentation::kWord32);
}
void VisitUint32Binop(Node* node) {
VisitBinop(node, UseInfo::TruncatingWord32(),
MachineRepresentation::kWord32);
}
void VisitInt64Binop(Node* node) {
VisitBinop(node, UseInfo::TruncatingWord64(),
MachineRepresentation::kWord64);
}
void VisitUint64Binop(Node* node) {
VisitBinop(node, UseInfo::TruncatingWord64(),
MachineRepresentation::kWord64);
}
void VisitFloat64Cmp(Node* node) {
VisitBinop(node, UseInfo::TruncatingFloat64(), MachineRepresentation::kBit);
}
void VisitInt32Cmp(Node* node) {
VisitBinop(node, UseInfo::TruncatingWord32(), MachineRepresentation::kBit);
}
void VisitUint32Cmp(Node* node) {
VisitBinop(node, UseInfo::TruncatingWord32(), MachineRepresentation::kBit);
}
void VisitInt64Cmp(Node* node) {
VisitBinop(node, UseInfo::TruncatingWord64(), MachineRepresentation::kBit);
}
void VisitUint64Cmp(Node* node) {
VisitBinop(node, UseInfo::TruncatingWord64(), MachineRepresentation::kBit);
}
// Infer representation for phi-like nodes.
// The {node} parameter is only used to decide on the int64 representation.
@ -1308,12 +1277,9 @@ class RepresentationSelector {
// tho Start doesn't really produce a value, we have to say Tagged
// here, otherwise the input conversion will fail.
return VisitLeaf(node, MachineRepresentation::kTagged);
case IrOpcode::kParameter: {
case IrOpcode::kParameter:
// TODO(titzer): use representation from linkage.
ProcessInput(node, 0, UseInfo::None());
SetOutput(node, MachineRepresentation::kTagged);
return;
}
return VisitUnop(node, UseInfo::None(), MachineRepresentation::kTagged);
case IrOpcode::kInt32Constant:
return VisitLeaf(node, MachineRepresentation::kWord32);
case IrOpcode::kInt64Constant:
@ -1381,6 +1347,8 @@ class RepresentationSelector {
node->AppendInput(jsgraph_->zone(), jsgraph_->Int32Constant(0));
NodeProperties::ChangeOp(node, lowering->machine()->Word32Equal());
} else {
DCHECK_EQ(input_info->representation(),
MachineRepresentation::kTagged);
// BooleanNot(x: kRepTagged) => WordEqual(x, #false)
node->AppendInput(jsgraph_->zone(), jsgraph_->FalseConstant());
NodeProperties::ChangeOp(node, lowering->machine()->WordEqual());
@ -1402,7 +1370,8 @@ class RepresentationSelector {
rhs_type->Is(Type::Unsigned32OrMinusZeroOrNaN()) &&
OneInputCannotBe(node, type_cache_.kZeroish))) {
// => unsigned Int32Cmp
VisitUint32Cmp(node);
VisitBinop(node, UseInfo::TruncatingWord32(),
MachineRepresentation::kBit);
if (lower()) NodeProperties::ChangeOp(node, Uint32Op(node));
return;
}
@ -1412,12 +1381,14 @@ class RepresentationSelector {
rhs_type->Is(Type::Signed32OrMinusZeroOrNaN()) &&
OneInputCannotBe(node, type_cache_.kZeroish))) {
// => signed Int32Cmp
VisitInt32Cmp(node);
VisitBinop(node, UseInfo::TruncatingWord32(),
MachineRepresentation::kBit);
if (lower()) NodeProperties::ChangeOp(node, Int32Op(node));
return;
}
// => Float64Cmp
VisitFloat64Cmp(node);
VisitBinop(node, UseInfo::TruncatingFloat64(),
MachineRepresentation::kBit);
if (lower()) NodeProperties::ChangeOp(node, Float64Op(node));
return;
}
@ -1427,16 +1398,19 @@ class RepresentationSelector {
if (TypeOf(node->InputAt(0))->Is(Type::Unsigned32()) &&
TypeOf(node->InputAt(1))->Is(Type::Unsigned32())) {
// => unsigned Int32Cmp
VisitUint32Cmp(node);
VisitBinop(node, UseInfo::TruncatingWord32(),
MachineRepresentation::kBit);
if (lower()) NodeProperties::ChangeOp(node, Uint32Op(node));
} else if (TypeOf(node->InputAt(0))->Is(Type::Signed32()) &&
TypeOf(node->InputAt(1))->Is(Type::Signed32())) {
// => signed Int32Cmp
VisitInt32Cmp(node);
VisitBinop(node, UseInfo::TruncatingWord32(),
MachineRepresentation::kBit);
if (lower()) NodeProperties::ChangeOp(node, Int32Op(node));
} else {
// => Float64Cmp
VisitFloat64Cmp(node);
VisitBinop(node, UseInfo::TruncatingFloat64(),
MachineRepresentation::kBit);
if (lower()) NodeProperties::ChangeOp(node, Float64Op(node));
}
return;
@ -1460,13 +1434,15 @@ class RepresentationSelector {
if (TypeOf(node->InputAt(0))->Is(Type::Unsigned32()) &&
TypeOf(node->InputAt(1))->Is(Type::Unsigned32())) {
// => unsigned Int32Cmp
VisitUint32Cmp(node);
VisitBinop(node, UseInfo::TruncatingWord32(),
MachineRepresentation::kBit);
if (lower()) ChangeToPureOp(node, Uint32Op(node));
return;
} else if (TypeOf(node->InputAt(0))->Is(Type::Signed32()) &&
TypeOf(node->InputAt(1))->Is(Type::Signed32())) {
// => signed Int32Cmp
VisitInt32Cmp(node);
VisitBinop(node, UseInfo::TruncatingWord32(),
MachineRepresentation::kBit);
if (lower()) ChangeToPureOp(node, Int32Op(node));
return;
}
@ -1604,7 +1580,7 @@ class RepresentationSelector {
if (BothInputsAreSigned32(node)) {
if (NodeProperties::GetType(node)->Is(Type::Signed32())) {
// => signed Int32Div
VisitInt32Binop(node);
VisitWord32TruncatingBinop(node);
if (lower()) DeferReplacement(node, lowering->Int32Div(node));
return;
}
@ -1675,7 +1651,7 @@ class RepresentationSelector {
if (BothInputsAreSigned32(node)) {
if (NodeProperties::GetType(node)->Is(Type::Signed32())) {
// => signed Int32Div
VisitInt32Binop(node);
VisitWord32TruncatingBinop(node);
if (lower()) DeferReplacement(node, lowering->Int32Div(node));
return;
}
@ -1742,7 +1718,7 @@ class RepresentationSelector {
case IrOpcode::kNumberBitwiseOr:
case IrOpcode::kNumberBitwiseXor:
case IrOpcode::kNumberBitwiseAnd: {
VisitInt32Binop(node);
VisitWord32TruncatingBinop(node);
if (lower()) NodeProperties::ChangeOp(node, Int32Op(node));
return;
}
@ -1904,13 +1880,13 @@ class RepresentationSelector {
case IrOpcode::kNumberMax: {
// TODO(turbofan): We should consider feedback types here as well.
if (BothInputsAreUnsigned32(node)) {
VisitUint32Binop(node);
VisitWord32TruncatingBinop(node);
if (lower()) {
lowering->DoMax(node, lowering->machine()->Uint32LessThan(),
MachineRepresentation::kWord32);
}
} else if (BothInputsAreSigned32(node)) {
VisitInt32Binop(node);
VisitWord32TruncatingBinop(node);
if (lower()) {
lowering->DoMax(node, lowering->machine()->Int32LessThan(),
MachineRepresentation::kWord32);
@ -1930,13 +1906,13 @@ class RepresentationSelector {
case IrOpcode::kNumberMin: {
// TODO(turbofan): We should consider feedback types here as well.
if (BothInputsAreUnsigned32(node)) {
VisitUint32Binop(node);
VisitWord32TruncatingBinop(node);
if (lower()) {
lowering->DoMin(node, lowering->machine()->Uint32LessThan(),
MachineRepresentation::kWord32);
}
} else if (BothInputsAreSigned32(node)) {
VisitInt32Binop(node);
VisitWord32TruncatingBinop(node);
if (lower()) {
lowering->DoMin(node, lowering->machine()->Int32LessThan(),
MachineRepresentation::kWord32);