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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/compiler/operator-properties.h"
#include "src/compiler/js-operator.h"
#include "src/compiler/linkage.h"
#include "src/compiler/opcodes.h"
namespace v8 {
namespace internal {
namespace compiler {
// static
bool OperatorProperties::HasContextInput(const Operator* op) {
IrOpcode::Value opcode = static_cast<IrOpcode::Value>(op->opcode());
return IrOpcode::IsJsOpcode(opcode);
}
// static
bool OperatorProperties::HasFrameStateInput(const Operator* op) {
switch (op->opcode()) {
case IrOpcode::kCheckpoint:
case IrOpcode::kFrameState:
return true;
case IrOpcode::kJSCallRuntime: {
const CallRuntimeParameters& p = CallRuntimeParametersOf(op);
return Linkage::NeedsFrameStateInput(p.id());
}
// Strict equality cannot lazily deoptimize.
case IrOpcode::kJSStrictEqual:
return false;
// Generator creation cannot call back into arbitrary JavaScript.
case IrOpcode::kJSCreateGeneratorObject:
return false;
// Binary operations
case IrOpcode::kJSAdd:
case IrOpcode::kJSSubtract:
case IrOpcode::kJSMultiply:
case IrOpcode::kJSDivide:
case IrOpcode::kJSModulus:
// Bitwise operations
case IrOpcode::kJSBitwiseOr:
case IrOpcode::kJSBitwiseXor:
case IrOpcode::kJSBitwiseAnd:
// Shift operations
case IrOpcode::kJSShiftLeft:
case IrOpcode::kJSShiftRight:
case IrOpcode::kJSShiftRightLogical:
// Compare operations
case IrOpcode::kJSEqual:
case IrOpcode::kJSGreaterThan:
case IrOpcode::kJSGreaterThanOrEqual:
case IrOpcode::kJSLessThan:
case IrOpcode::kJSLessThanOrEqual:
case IrOpcode::kJSHasProperty:
case IrOpcode::kJSHasInPrototypeChain:
case IrOpcode::kJSInstanceOf:
case IrOpcode::kJSOrdinaryHasInstance:
// Object operations
case IrOpcode::kJSCreate:
case IrOpcode::kJSCreateArguments:
case IrOpcode::kJSCreateArray:
case IrOpcode::kJSCreateLiteralArray:
case IrOpcode::kJSCreateLiteralObject:
case IrOpcode::kJSCreateLiteralRegExp:
// Property access operations
case IrOpcode::kJSLoadNamed:
case IrOpcode::kJSStoreNamed:
case IrOpcode::kJSLoadProperty:
case IrOpcode::kJSStoreProperty:
case IrOpcode::kJSLoadGlobal:
case IrOpcode::kJSStoreGlobal:
case IrOpcode::kJSStoreNamedOwn:
case IrOpcode::kJSStoreDataPropertyInLiteral:
case IrOpcode::kJSDeleteProperty:
// Context operations
case IrOpcode::kJSCreateScriptContext:
// Conversions
case IrOpcode::kJSToInteger:
case IrOpcode::kJSToLength:
case IrOpcode::kJSToName:
case IrOpcode::kJSToNumber:
case IrOpcode::kJSToObject:
case IrOpcode::kJSToString:
case IrOpcode::kJSToPrimitiveToString:
// Call operations
case IrOpcode::kJSConstructForwardVarargs:
case IrOpcode::kJSConstruct:
case IrOpcode::kJSConstructWithArrayLike:
case IrOpcode::kJSConstructWithSpread:
case IrOpcode::kJSCallForwardVarargs:
case IrOpcode::kJSCall:
case IrOpcode::kJSCallWithArrayLike:
case IrOpcode::kJSCallWithSpread:
// Misc operations
case IrOpcode::kJSStringConcat:
case IrOpcode::kJSForInNext:
case IrOpcode::kJSForInPrepare:
case IrOpcode::kJSStackCheck:
case IrOpcode::kJSDebugger:
case IrOpcode::kJSGetSuperConstructor:
return true;
default:
return false;
}
}
// static
int OperatorProperties::GetTotalInputCount(const Operator* op) {
return op->ValueInputCount() + GetContextInputCount(op) +
GetFrameStateInputCount(op) + op->EffectInputCount() +
op->ControlInputCount();
}
// static
bool OperatorProperties::IsBasicBlockBegin(const Operator* op) {
Operator::Opcode const opcode = op->opcode();
return opcode == IrOpcode::kStart || opcode == IrOpcode::kEnd ||
opcode == IrOpcode::kDead || opcode == IrOpcode::kLoop ||
opcode == IrOpcode::kMerge || opcode == IrOpcode::kIfTrue ||
opcode == IrOpcode::kIfFalse || opcode == IrOpcode::kIfSuccess ||
opcode == IrOpcode::kIfException || opcode == IrOpcode::kIfValue ||
opcode == IrOpcode::kIfDefault;
}
} // namespace compiler
} // namespace internal
} // namespace v8
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