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Unified Diff: pkg/compiler/lib/src/ssa/invoke_dynamic_specializers.dart

Issue 693183006: Revert "Move dart2js from sdk/lib/_internal/compiler to pkg/compiler" (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 6 years, 1 month ago
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Index: pkg/compiler/lib/src/ssa/invoke_dynamic_specializers.dart
diff --git a/pkg/compiler/lib/src/ssa/invoke_dynamic_specializers.dart b/pkg/compiler/lib/src/ssa/invoke_dynamic_specializers.dart
deleted file mode 100644
index 5511118ee603a6cf9148ffdf3f5150b14cfe79f6..0000000000000000000000000000000000000000
--- a/pkg/compiler/lib/src/ssa/invoke_dynamic_specializers.dart
+++ /dev/null
@@ -1,749 +0,0 @@
-// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-part of ssa;
-
-/**
- * [InvokeDynamicSpecializer] and its subclasses are helpers to
- * optimize intercepted dynamic calls. It knows what input types
- * would be beneficial for performance, and how to change a invoke
- * dynamic to a builtin instruction (e.g. HIndex, HBitNot).
- */
-class InvokeDynamicSpecializer {
- const InvokeDynamicSpecializer();
-
- TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction,
- Compiler compiler) {
- Selector selector = instruction.selector;
- return TypeMaskFactory.inferredTypeForSelector(selector, compiler);
- }
-
- HInstruction tryConvertToBuiltin(HInvokeDynamic instruction,
- Compiler compiler) {
- return null;
- }
-
- Operation operation(ConstantSystem constantSystem) => null;
-
- static InvokeDynamicSpecializer lookupSpecializer(Selector selector) {
- if (selector.kind == SelectorKind.INDEX) {
- return selector.name == '[]'
- ? const IndexSpecializer()
- : const IndexAssignSpecializer();
- } else if (selector.kind == SelectorKind.OPERATOR) {
- if (selector.name == 'unary-') {
- return const UnaryNegateSpecializer();
- } else if (selector.name == '~') {
- return const BitNotSpecializer();
- } else if (selector.name == '+') {
- return const AddSpecializer();
- } else if (selector.name == '-') {
- return const SubtractSpecializer();
- } else if (selector.name == '*') {
- return const MultiplySpecializer();
- } else if (selector.name == '/') {
- return const DivideSpecializer();
- } else if (selector.name == '~/') {
- return const TruncatingDivideSpecializer();
- } else if (selector.name == '%') {
- return const ModuloSpecializer();
- } else if (selector.name == '>>') {
- return const ShiftRightSpecializer();
- } else if (selector.name == '<<') {
- return const ShiftLeftSpecializer();
- } else if (selector.name == '&') {
- return const BitAndSpecializer();
- } else if (selector.name == '|') {
- return const BitOrSpecializer();
- } else if (selector.name == '^') {
- return const BitXorSpecializer();
- } else if (selector.name == '==') {
- return const EqualsSpecializer();
- } else if (selector.name == '<') {
- return const LessSpecializer();
- } else if (selector.name == '<=') {
- return const LessEqualSpecializer();
- } else if (selector.name == '>') {
- return const GreaterSpecializer();
- } else if (selector.name == '>=') {
- return const GreaterEqualSpecializer();
- }
- } else if (selector.kind == SelectorKind.CALL) {
- if (selector.argumentCount == 1 && selector.namedArguments.length == 0) {
- if (selector.name == 'codeUnitAt') {
- return const CodeUnitAtSpecializer();
- }
- }
- }
- return const InvokeDynamicSpecializer();
- }
-}
-
-class IndexAssignSpecializer extends InvokeDynamicSpecializer {
- const IndexAssignSpecializer();
-
- HInstruction tryConvertToBuiltin(HInvokeDynamic instruction,
- Compiler compiler) {
- if (instruction.inputs[1].isMutableIndexable(compiler)) {
- if (!instruction.inputs[2].isInteger(compiler)
- && compiler.enableTypeAssertions) {
- // We want the right checked mode error.
- return null;
- }
- return new HIndexAssign(instruction.inputs[1],
- instruction.inputs[2],
- instruction.inputs[3],
- instruction.selector);
- }
- return null;
- }
-}
-
-class IndexSpecializer extends InvokeDynamicSpecializer {
- const IndexSpecializer();
-
- HInstruction tryConvertToBuiltin(HInvokeDynamic instruction,
- Compiler compiler) {
- if (!instruction.inputs[1].isIndexablePrimitive(compiler)) return null;
- if (!instruction.inputs[2].isInteger(compiler)
- && compiler.enableTypeAssertions) {
- // We want the right checked mode error.
- return null;
- }
- TypeMask receiverType =
- instruction.getDartReceiver(compiler).instructionType;
- Selector refined = new TypedSelector(receiverType, instruction.selector,
- compiler.world);
- TypeMask type = TypeMaskFactory.inferredTypeForSelector(refined, compiler);
- return new HIndex(
- instruction.inputs[1], instruction.inputs[2],
- instruction.selector, type);
- }
-}
-
-class BitNotSpecializer extends InvokeDynamicSpecializer {
- const BitNotSpecializer();
-
- UnaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.bitNot;
- }
-
- TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction,
- Compiler compiler) {
- // All bitwise operations on primitive types either produce an
- // integer or throw an error.
- JavaScriptBackend backend = compiler.backend;
- if (instruction.inputs[1].isPrimitiveOrNull(compiler)) {
- return backend.uint32Type;
- }
- return super.computeTypeFromInputTypes(instruction, compiler);
- }
-
- HInstruction tryConvertToBuiltin(HInvokeDynamic instruction,
- Compiler compiler) {
- JavaScriptBackend backend = compiler.backend;
- HInstruction input = instruction.inputs[1];
- if (input.isNumber(compiler)) {
- return new HBitNot(input, instruction.selector,
- computeTypeFromInputTypes(instruction, compiler));
- }
- return null;
- }
-}
-
-class UnaryNegateSpecializer extends InvokeDynamicSpecializer {
- const UnaryNegateSpecializer();
-
- UnaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.negate;
- }
-
- TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction,
- Compiler compiler) {
- TypeMask operandType = instruction.inputs[1].instructionType;
- if (instruction.inputs[1].isNumberOrNull(compiler)) return operandType;
- return super.computeTypeFromInputTypes(instruction, compiler);
- }
-
- HInstruction tryConvertToBuiltin(HInvokeDynamic instruction,
- Compiler compiler) {
- HInstruction input = instruction.inputs[1];
- if (input.isNumber(compiler)) {
- return new HNegate(input, instruction.selector, input.instructionType);
- }
- return null;
- }
-}
-
-abstract class BinaryArithmeticSpecializer extends InvokeDynamicSpecializer {
- const BinaryArithmeticSpecializer();
-
- TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction,
- Compiler compiler) {
- HInstruction left = instruction.inputs[1];
- HInstruction right = instruction.inputs[2];
- JavaScriptBackend backend = compiler.backend;
- if (left.isIntegerOrNull(compiler) && right.isIntegerOrNull(compiler)) {
- return backend.intType;
- }
- if (left.isNumberOrNull(compiler)) {
- if (left.isDoubleOrNull(compiler) || right.isDoubleOrNull(compiler)) {
- return backend.doubleType;
- }
- return backend.numType;
- }
- return super.computeTypeFromInputTypes(instruction, compiler);
- }
-
- bool isBuiltin(HInvokeDynamic instruction, Compiler compiler) {
- return instruction.inputs[1].isNumber(compiler)
- && instruction.inputs[2].isNumber(compiler);
- }
-
- HInstruction tryConvertToBuiltin(HInvokeDynamic instruction,
- Compiler compiler) {
- if (isBuiltin(instruction, compiler)) {
- HInstruction builtin = newBuiltinVariant(instruction, compiler);
- if (builtin != null) return builtin;
- // Even if there is no builtin equivalent instruction, we know
- // the instruction does not have any side effect, and that it
- // can be GVN'ed.
- clearAllSideEffects(instruction);
- }
- return null;
- }
-
- void clearAllSideEffects(HInstruction instruction) {
- instruction.sideEffects.clearAllSideEffects();
- instruction.sideEffects.clearAllDependencies();
- instruction.setUseGvn();
- }
-
- bool inputsArePositiveIntegers(HInstruction instruction, Compiler compiler) {
- HInstruction left = instruction.inputs[1];
- HInstruction right = instruction.inputs[2];
- JavaScriptBackend backend = compiler.backend;
- return left.isPositiveIntegerOrNull(compiler)
- && right.isPositiveIntegerOrNull(compiler);
- }
-
- HInstruction newBuiltinVariant(HInvokeDynamic instruction, Compiler compiler);
-
- Selector renameToOptimizedSelector(String name,
- Selector selector,
- Compiler compiler) {
- if (selector.name == name) return selector;
- JavaScriptBackend backend = compiler.backend;
- Selector newSelector = new Selector(
- SelectorKind.CALL, name, backend.interceptorsLibrary,
- selector.argumentCount);
- return selector.mask == null
- ? newSelector
- : new TypedSelector(selector.mask, newSelector, compiler.world);
- }
-}
-
-class AddSpecializer extends BinaryArithmeticSpecializer {
- const AddSpecializer();
-
- TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction,
- Compiler compiler) {
- if (inputsArePositiveIntegers(instruction, compiler)) {
- JavaScriptBackend backend = compiler.backend;
- return backend.positiveIntType;
- }
- return super.computeTypeFromInputTypes(instruction, compiler);
- }
-
- BinaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.add;
- }
-
- HInstruction newBuiltinVariant(HInvokeDynamic instruction,
- Compiler compiler) {
- return new HAdd(
- instruction.inputs[1], instruction.inputs[2],
- instruction.selector, computeTypeFromInputTypes(instruction, compiler));
- }
-}
-
-class DivideSpecializer extends BinaryArithmeticSpecializer {
- const DivideSpecializer();
-
- BinaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.divide;
- }
-
- TypeMask computeTypeFromInputTypes(HInstruction instruction,
- Compiler compiler) {
- HInstruction left = instruction.inputs[1];
- JavaScriptBackend backend = compiler.backend;
- if (left.isNumberOrNull(compiler)) {
- return backend.doubleType;
- }
- return super.computeTypeFromInputTypes(instruction, compiler);
- }
-
- HInstruction newBuiltinVariant(HInvokeDynamic instruction,
- Compiler compiler) {
- JavaScriptBackend backend = compiler.backend;
- return new HDivide(
- instruction.inputs[1], instruction.inputs[2],
- instruction.selector, backend.doubleType);
- }
-}
-
-class ModuloSpecializer extends BinaryArithmeticSpecializer {
- const ModuloSpecializer();
-
- TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction,
- Compiler compiler) {
- if (inputsArePositiveIntegers(instruction, compiler)) {
- JavaScriptBackend backend = compiler.backend;
- return backend.positiveIntType;
- }
- return super.computeTypeFromInputTypes(instruction, compiler);
- }
-
- BinaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.modulo;
- }
-
- HInstruction newBuiltinVariant(HInvokeDynamic instruction,
- Compiler compiler) {
- // Modulo cannot be mapped to the native operator (different semantics).
- return null;
- }
-}
-
-class MultiplySpecializer extends BinaryArithmeticSpecializer {
- const MultiplySpecializer();
-
- BinaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.multiply;
- }
-
- TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction,
- Compiler compiler) {
- if (inputsArePositiveIntegers(instruction, compiler)) {
- JavaScriptBackend backend = compiler.backend;
- return backend.positiveIntType;
- }
- return super.computeTypeFromInputTypes(instruction, compiler);
- }
-
- HInstruction newBuiltinVariant(HInvokeDynamic instruction,
- Compiler compiler) {
- return new HMultiply(
- instruction.inputs[1], instruction.inputs[2],
- instruction.selector, computeTypeFromInputTypes(instruction, compiler));
- }
-}
-
-class SubtractSpecializer extends BinaryArithmeticSpecializer {
- const SubtractSpecializer();
-
- BinaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.subtract;
- }
-
- HInstruction newBuiltinVariant(HInvokeDynamic instruction,
- Compiler compiler) {
- return new HSubtract(
- instruction.inputs[1], instruction.inputs[2],
- instruction.selector, computeTypeFromInputTypes(instruction, compiler));
- }
-}
-
-class TruncatingDivideSpecializer extends BinaryArithmeticSpecializer {
- const TruncatingDivideSpecializer();
-
- BinaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.truncatingDivide;
- }
-
- TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction,
- Compiler compiler) {
- if (inputsArePositiveIntegers(instruction, compiler)) {
- JavaScriptBackend backend = compiler.backend;
- return backend.positiveIntType;
- }
- return super.computeTypeFromInputTypes(instruction, compiler);
- }
-
- bool isNotZero(HInstruction instruction, Compiler compiler) {
- if (!instruction.isConstantInteger()) return false;
- HConstant rightConstant = instruction;
- IntConstantValue intConstant = rightConstant.constant;
- int count = intConstant.primitiveValue;
- return count != 0;
- }
-
- HInstruction tryConvertToBuiltin(HInvokeDynamic instruction,
- Compiler compiler) {
- HInstruction left = instruction.inputs[1];
- HInstruction right = instruction.inputs[2];
- if (isBuiltin(instruction, compiler)) {
- if (right.isPositiveInteger(compiler) && isNotZero(right, compiler)) {
- if (left.isUInt31(compiler)) {
- return newBuiltinVariant(instruction, compiler);
- }
- // We can call _tdivFast because the rhs is a 32bit integer
- // and not 0, nor -1.
- instruction.selector = renameToOptimizedSelector(
- '_tdivFast', instruction.selector, compiler);
- }
- clearAllSideEffects(instruction);
- }
- return null;
- }
-
- HInstruction newBuiltinVariant(HInvokeDynamic instruction,
- Compiler compiler) {
- return new HTruncatingDivide(
- instruction.inputs[1], instruction.inputs[2],
- instruction.selector, computeTypeFromInputTypes(instruction, compiler));
- }
-}
-
-abstract class BinaryBitOpSpecializer extends BinaryArithmeticSpecializer {
- const BinaryBitOpSpecializer();
-
- TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction,
- Compiler compiler) {
- // All bitwise operations on primitive types either produce an
- // integer or throw an error.
- HInstruction left = instruction.inputs[1];
- JavaScriptBackend backend = compiler.backend;
- if (left.isPrimitiveOrNull(compiler)) {
- return backend.uint32Type;
- }
- return super.computeTypeFromInputTypes(instruction, compiler);
- }
-
- bool argumentLessThan32(HInstruction instruction) {
- if (!instruction.isConstantInteger()) return false;
- HConstant rightConstant = instruction;
- IntConstantValue intConstant = rightConstant.constant;
- int count = intConstant.primitiveValue;
- return count >= 0 && count <= 31;
- }
-
- bool isPositive(HInstruction instruction, Compiler compiler) {
- // TODO: We should use the value range analysis. Currently, ranges
- // are discarded just after the analysis.
- return instruction.isPositiveInteger(compiler);
- }
-}
-
-class ShiftLeftSpecializer extends BinaryBitOpSpecializer {
- const ShiftLeftSpecializer();
-
- BinaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.shiftLeft;
- }
-
- HInstruction tryConvertToBuiltin(HInvokeDynamic instruction,
- Compiler compiler) {
- HInstruction left = instruction.inputs[1];
- HInstruction right = instruction.inputs[2];
- if (left.isNumber(compiler)) {
- if (argumentLessThan32(right)) {
- return newBuiltinVariant(instruction, compiler);
- }
- // Even if there is no builtin equivalent instruction, we know
- // the instruction does not have any side effect, and that it
- // can be GVN'ed.
- clearAllSideEffects(instruction);
- Selector selector = instruction.selector;
- if (isPositive(right, compiler)) {
- instruction.selector = renameToOptimizedSelector(
- '_shlPositive', instruction.selector, compiler);
- }
- }
- return null;
- }
-
- HInstruction newBuiltinVariant(HInvokeDynamic instruction,
- Compiler compiler) {
- JavaScriptBackend backend = compiler.backend;
- return new HShiftLeft(
- instruction.inputs[1], instruction.inputs[2],
- instruction.selector, computeTypeFromInputTypes(instruction, compiler));
- }
-}
-
-class ShiftRightSpecializer extends BinaryBitOpSpecializer {
- const ShiftRightSpecializer();
-
- TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction,
- Compiler compiler) {
- HInstruction left = instruction.inputs[1];
- HInstruction right = instruction.inputs[2];
- JavaScriptBackend backend = compiler.backend;
- if (left.isUInt32(compiler)) return left.instructionType;
- return super.computeTypeFromInputTypes(instruction, compiler);
- }
-
- HInstruction tryConvertToBuiltin(HInvokeDynamic instruction,
- Compiler compiler) {
- HInstruction left = instruction.inputs[1];
- HInstruction right = instruction.inputs[2];
- if (left.isNumber(compiler)) {
- if (argumentLessThan32(right) && isPositive(left, compiler)) {
- return newBuiltinVariant(instruction, compiler);
- }
- // Even if there is no builtin equivalent instruction, we know
- // the instruction does not have any side effect, and that it
- // can be GVN'ed.
- clearAllSideEffects(instruction);
- if (isPositive(right, compiler) && isPositive(left, compiler)) {
- instruction.selector = renameToOptimizedSelector(
- '_shrBothPositive', instruction.selector, compiler);
- } else if (isPositive(left, compiler) && right.isNumber(compiler)) {
- instruction.selector = renameToOptimizedSelector(
- '_shrReceiverPositive', instruction.selector, compiler);
- } else if (isPositive(right, compiler)) {
- instruction.selector = renameToOptimizedSelector(
- '_shrOtherPositive', instruction.selector, compiler);
- }
- }
- return null;
- }
-
- HInstruction newBuiltinVariant(HInvokeDynamic instruction,
- Compiler compiler) {
- JavaScriptBackend backend = compiler.backend;
- return new HShiftRight(
- instruction.inputs[1], instruction.inputs[2],
- instruction.selector, computeTypeFromInputTypes(instruction, compiler));
- }
-
- BinaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.shiftRight;
- }
-}
-
-class BitOrSpecializer extends BinaryBitOpSpecializer {
- const BitOrSpecializer();
-
- BinaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.bitOr;
- }
-
- TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction,
- Compiler compiler) {
- HInstruction left = instruction.inputs[1];
- HInstruction right = instruction.inputs[2];
- JavaScriptBackend backend = compiler.backend;
- if (left.isUInt31(compiler) && right.isUInt31(compiler)) {
- return backend.uint31Type;
- }
- return super.computeTypeFromInputTypes(instruction, compiler);
- }
-
- HInstruction newBuiltinVariant(HInvokeDynamic instruction,
- Compiler compiler) {
- JavaScriptBackend backend = compiler.backend;
- return new HBitOr(
- instruction.inputs[1], instruction.inputs[2],
- instruction.selector, computeTypeFromInputTypes(instruction, compiler));
- }
-}
-
-class BitAndSpecializer extends BinaryBitOpSpecializer {
- const BitAndSpecializer();
-
- BinaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.bitAnd;
- }
-
- TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction,
- Compiler compiler) {
- HInstruction left = instruction.inputs[1];
- HInstruction right = instruction.inputs[2];
- JavaScriptBackend backend = compiler.backend;
- if (left.isUInt31(compiler) || right.isUInt31(compiler)) {
- return backend.uint31Type;
- }
- return super.computeTypeFromInputTypes(instruction, compiler);
- }
-
- HInstruction newBuiltinVariant(HInvokeDynamic instruction,
- Compiler compiler) {
- JavaScriptBackend backend = compiler.backend;
- return new HBitAnd(
- instruction.inputs[1], instruction.inputs[2],
- instruction.selector, computeTypeFromInputTypes(instruction, compiler));
- }
-}
-
-class BitXorSpecializer extends BinaryBitOpSpecializer {
- const BitXorSpecializer();
-
- BinaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.bitXor;
- }
-
- TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction,
- Compiler compiler) {
- HInstruction left = instruction.inputs[1];
- HInstruction right = instruction.inputs[2];
- JavaScriptBackend backend = compiler.backend;
- if (left.isUInt31(compiler) && right.isUInt31(compiler)) {
- return backend.uint31Type;
- }
- return super.computeTypeFromInputTypes(instruction, compiler);
- }
-
- HInstruction newBuiltinVariant(HInvokeDynamic instruction,
- Compiler compiler) {
- JavaScriptBackend backend = compiler.backend;
- return new HBitXor(
- instruction.inputs[1], instruction.inputs[2],
- instruction.selector, computeTypeFromInputTypes(instruction, compiler));
- }
-}
-
-abstract class RelationalSpecializer extends InvokeDynamicSpecializer {
- const RelationalSpecializer();
-
- TypeMask computeTypeFromInputTypes(HInvokeDynamic instruction,
- Compiler compiler) {
- JavaScriptBackend backend = compiler.backend;
- if (instruction.inputs[1].isPrimitiveOrNull(compiler)) {
- return backend.boolType;
- }
- return super.computeTypeFromInputTypes(instruction, compiler);
- }
-
- HInstruction tryConvertToBuiltin(HInvokeDynamic instruction,
- Compiler compiler) {
- HInstruction left = instruction.inputs[1];
- HInstruction right = instruction.inputs[2];
- if (left.isNumber(compiler) && right.isNumber(compiler)) {
- return newBuiltinVariant(instruction, compiler);
- }
- return null;
- }
-
- HInstruction newBuiltinVariant(HInvokeDynamic instruction, Compiler compiler);
-}
-
-class EqualsSpecializer extends RelationalSpecializer {
- const EqualsSpecializer();
-
- HInstruction tryConvertToBuiltin(HInvokeDynamic instruction,
- Compiler compiler) {
- HInstruction left = instruction.inputs[1];
- HInstruction right = instruction.inputs[2];
- TypeMask instructionType = left.instructionType;
- if (right.isConstantNull() || left.isPrimitiveOrNull(compiler)) {
- return newBuiltinVariant(instruction, compiler);
- }
- World world = compiler.world;
- Selector selector =
- new TypedSelector(instructionType, instruction.selector, world);
- JavaScriptBackend backend = compiler.backend;
- Iterable<Element> matches = world.allFunctions.filter(selector);
- // This test relies the on `Object.==` and `Interceptor.==` always being
- // implemented because if the selector matches by subtype, it still will be
- // a regular object or an interceptor.
- if (matches.every(backend.isDefaultEqualityImplementation)) {
- return newBuiltinVariant(instruction, compiler);
- }
- return null;
- }
-
- BinaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.equal;
- }
-
- HInstruction newBuiltinVariant(HInvokeDynamic instruction,
- Compiler compiler) {
- JavaScriptBackend backend = compiler.backend;
- return new HIdentity(
- instruction.inputs[1], instruction.inputs[2],
- instruction.selector, backend.boolType);
- }
-}
-
-class LessSpecializer extends RelationalSpecializer {
- const LessSpecializer();
-
- BinaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.less;
- }
-
- HInstruction newBuiltinVariant(HInvokeDynamic instruction,
- Compiler compiler) {
- JavaScriptBackend backend = compiler.backend;
- return new HLess(
- instruction.inputs[1], instruction.inputs[2],
- instruction.selector, backend.boolType);
- }
-}
-
-class GreaterSpecializer extends RelationalSpecializer {
- const GreaterSpecializer();
-
- BinaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.greater;
- }
-
- HInstruction newBuiltinVariant(HInvokeDynamic instruction,
- Compiler compiler) {
- JavaScriptBackend backend = compiler.backend;
- return new HGreater(
- instruction.inputs[1], instruction.inputs[2],
- instruction.selector, backend.boolType);
- }
-}
-
-class GreaterEqualSpecializer extends RelationalSpecializer {
- const GreaterEqualSpecializer();
-
- BinaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.greaterEqual;
- }
-
- HInstruction newBuiltinVariant(HInvokeDynamic instruction,
- Compiler compiler) {
- JavaScriptBackend backend = compiler.backend;
- return new HGreaterEqual(
- instruction.inputs[1], instruction.inputs[2],
- instruction.selector, backend.boolType);
- }
-}
-
-class LessEqualSpecializer extends RelationalSpecializer {
- const LessEqualSpecializer();
-
- BinaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.lessEqual;
- }
-
- HInstruction newBuiltinVariant(HInvokeDynamic instruction,
- Compiler compiler) {
- JavaScriptBackend backend = compiler.backend;
- return new HLessEqual(
- instruction.inputs[1], instruction.inputs[2],
- instruction.selector, backend.boolType);
- }
-}
-
-class CodeUnitAtSpecializer extends InvokeDynamicSpecializer {
- const CodeUnitAtSpecializer();
-
- BinaryOperation operation(ConstantSystem constantSystem) {
- return constantSystem.codeUnitAt;
- }
-
- HInstruction tryConvertToBuiltin(HInvokeDynamic instruction,
- Compiler compiler) {
- // TODO(sra): Implement a builtin HCodeUnitAt instruction and the same index
- // bounds checking optimizations as for HIndex.
- return null;
- }
-}
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