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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 interface HVisitor<R> { | 5 interface HVisitor<R> { |
6 R visitAdd(HAdd node); | 6 R visitAdd(HAdd node); |
7 R visitBailoutTarget(HBailoutTarget node); | 7 R visitBailoutTarget(HBailoutTarget node); |
8 R visitBitAnd(HBitAnd node); | 8 R visitBitAnd(HBitAnd node); |
9 R visitBitNot(HBitNot node); | 9 R visitBitNot(HBitNot node); |
10 R visitBitOr(HBitOr node); | 10 R visitBitOr(HBitOr node); |
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752 // Changes flags. | 752 // Changes flags. |
753 static const int FLAG_CHANGES_SOMETHING = 0; | 753 static const int FLAG_CHANGES_SOMETHING = 0; |
754 static const int FLAG_CHANGES_COUNT = FLAG_CHANGES_SOMETHING + 1; | 754 static const int FLAG_CHANGES_COUNT = FLAG_CHANGES_SOMETHING + 1; |
755 | 755 |
756 // Depends flags (one for each changes flag). | 756 // Depends flags (one for each changes flag). |
757 static const int FLAG_DEPENDS_ON_SOMETHING = FLAG_CHANGES_COUNT; | 757 static const int FLAG_DEPENDS_ON_SOMETHING = FLAG_CHANGES_COUNT; |
758 | 758 |
759 // Other flags. | 759 // Other flags. |
760 static const int FLAG_USE_GVN = FLAG_DEPENDS_ON_SOMETHING + 1; | 760 static const int FLAG_USE_GVN = FLAG_DEPENDS_ON_SOMETHING + 1; |
761 | 761 |
762 // Type codes. | 762 // DartType codes. |
kasperl
2012/08/30 14:11:27
Remove Dart again.
| |
763 static const int UNDEFINED_TYPECODE = -1; | 763 static const int UNDEFINED_TYPECODE = -1; |
764 static const int BOOLIFY_TYPECODE = 0; | 764 static const int BOOLIFY_TYPECODE = 0; |
765 static const int TYPE_GUARD_TYPECODE = 1; | 765 static const int TYPE_GUARD_TYPECODE = 1; |
766 static const int BOUNDS_CHECK_TYPECODE = 2; | 766 static const int BOUNDS_CHECK_TYPECODE = 2; |
767 static const int INTEGER_CHECK_TYPECODE = 3; | 767 static const int INTEGER_CHECK_TYPECODE = 3; |
768 static const int INVOKE_INTERCEPTOR_TYPECODE = 4; | 768 static const int INVOKE_INTERCEPTOR_TYPECODE = 4; |
769 static const int ADD_TYPECODE = 5; | 769 static const int ADD_TYPECODE = 5; |
770 static const int DIVIDE_TYPECODE = 6; | 770 static const int DIVIDE_TYPECODE = 6; |
771 static const int MODULO_TYPECODE = 7; | 771 static const int MODULO_TYPECODE = 7; |
772 static const int MULTIPLY_TYPECODE = 8; | 772 static const int MULTIPLY_TYPECODE = 8; |
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2395 // because the integer check will simply throw if it fails. | 2395 // because the integer check will simply throw if it fails. |
2396 return HType.UNKNOWN; | 2396 return HType.UNKNOWN; |
2397 } | 2397 } |
2398 | 2398 |
2399 bool isBuiltin(HTypeMap types) | 2399 bool isBuiltin(HTypeMap types) |
2400 => receiver.isMutableArray(types) && index.isInteger(types); | 2400 => receiver.isMutableArray(types) && index.isInteger(types); |
2401 bool isJsStatement(HTypeMap types) => !isBuiltin(types); | 2401 bool isJsStatement(HTypeMap types) => !isBuiltin(types); |
2402 } | 2402 } |
2403 | 2403 |
2404 class HIs extends HInstruction { | 2404 class HIs extends HInstruction { |
2405 final Type typeExpression; | 2405 final DartType typeExpression; |
2406 final bool nullOk; | 2406 final bool nullOk; |
2407 | 2407 |
2408 HIs.withTypeInfoCall(this.typeExpression, HInstruction expression, | 2408 HIs.withTypeInfoCall(this.typeExpression, HInstruction expression, |
2409 HInstruction typeInfo, [this.nullOk = false]) | 2409 HInstruction typeInfo, [this.nullOk = false]) |
2410 : super(<HInstruction>[expression, typeInfo]); | 2410 : super(<HInstruction>[expression, typeInfo]); |
2411 | 2411 |
2412 HIs(this.typeExpression, HInstruction expression, [this.nullOk = false]) | 2412 HIs(this.typeExpression, HInstruction expression, [this.nullOk = false]) |
2413 : super(<HInstruction>[expression]); | 2413 : super(<HInstruction>[expression]); |
2414 | 2414 |
2415 HInstruction get expression => inputs[0]; | 2415 HInstruction get expression => inputs[0]; |
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2801 HBasicBlock get start => expression.start; | 2801 HBasicBlock get start => expression.start; |
2802 HBasicBlock get end { | 2802 HBasicBlock get end { |
2803 // We don't create a switch block if there are no cases. | 2803 // We don't create a switch block if there are no cases. |
2804 assert(!statements.isEmpty()); | 2804 assert(!statements.isEmpty()); |
2805 return statements.last().end; | 2805 return statements.last().end; |
2806 } | 2806 } |
2807 | 2807 |
2808 bool accept(HStatementInformationVisitor visitor) => | 2808 bool accept(HStatementInformationVisitor visitor) => |
2809 visitor.visitSwitchInfo(this); | 2809 visitor.visitSwitchInfo(this); |
2810 } | 2810 } |
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