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| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, 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 part of ssa; | 5 part of ssa; |
| 6 | 6 |
| 7 /** | 7 /** |
| 8 * [InvokeDynamicSpecializer] and its subclasses are helpers to | 8 * [InvokeDynamicSpecializer] and its subclasses are helpers to |
| 9 * optimize intercepted dynamic calls. It knows what input types | 9 * optimize intercepted dynamic calls. It knows what input types |
| 10 * would be beneficial for performance, and how to change a invoke | 10 * would be beneficial for performance, and how to change a invoke |
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| 362 if (inputsArePositiveIntegers(instruction, compiler)) { | 362 if (inputsArePositiveIntegers(instruction, compiler)) { |
| 363 JavaScriptBackend backend = compiler.backend; | 363 JavaScriptBackend backend = compiler.backend; |
| 364 return backend.positiveIntType; | 364 return backend.positiveIntType; |
| 365 } | 365 } |
| 366 return super.computeTypeFromInputTypes(instruction, compiler); | 366 return super.computeTypeFromInputTypes(instruction, compiler); |
| 367 } | 367 } |
| 368 | 368 |
| 369 bool isNotZero(HInstruction instruction, Compiler compiler) { | 369 bool isNotZero(HInstruction instruction, Compiler compiler) { |
| 370 if (!instruction.isConstantInteger()) return false; | 370 if (!instruction.isConstantInteger()) return false; |
| 371 HConstant rightConstant = instruction; | 371 HConstant rightConstant = instruction; |
| 372 IntConstant intConstant = rightConstant.constant; | 372 IntConstantValue intConstant = rightConstant.constant; |
| 373 int count = intConstant.value; | 373 int count = intConstant.primitiveValue; |
| 374 return count != 0; | 374 return count != 0; |
| 375 } | 375 } |
| 376 | 376 |
| 377 HInstruction tryConvertToBuiltin(HInvokeDynamic instruction, | 377 HInstruction tryConvertToBuiltin(HInvokeDynamic instruction, |
| 378 Compiler compiler) { | 378 Compiler compiler) { |
| 379 HInstruction left = instruction.inputs[1]; | 379 HInstruction left = instruction.inputs[1]; |
| 380 HInstruction right = instruction.inputs[2]; | 380 HInstruction right = instruction.inputs[2]; |
| 381 if (isBuiltin(instruction, compiler)) { | 381 if (isBuiltin(instruction, compiler)) { |
| 382 if (right.isPositiveInteger(compiler) && isNotZero(right, compiler)) { | 382 if (right.isPositiveInteger(compiler) && isNotZero(right, compiler)) { |
| 383 if (left.isUInt31(compiler)) { | 383 if (left.isUInt31(compiler)) { |
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| 412 JavaScriptBackend backend = compiler.backend; | 412 JavaScriptBackend backend = compiler.backend; |
| 413 if (left.isPrimitiveOrNull(compiler)) { | 413 if (left.isPrimitiveOrNull(compiler)) { |
| 414 return backend.uint32Type; | 414 return backend.uint32Type; |
| 415 } | 415 } |
| 416 return super.computeTypeFromInputTypes(instruction, compiler); | 416 return super.computeTypeFromInputTypes(instruction, compiler); |
| 417 } | 417 } |
| 418 | 418 |
| 419 bool argumentLessThan32(HInstruction instruction) { | 419 bool argumentLessThan32(HInstruction instruction) { |
| 420 if (!instruction.isConstantInteger()) return false; | 420 if (!instruction.isConstantInteger()) return false; |
| 421 HConstant rightConstant = instruction; | 421 HConstant rightConstant = instruction; |
| 422 IntConstant intConstant = rightConstant.constant; | 422 IntConstantValue intConstant = rightConstant.constant; |
| 423 int count = intConstant.value; | 423 int count = intConstant.primitiveValue; |
| 424 return count >= 0 && count <= 31; | 424 return count >= 0 && count <= 31; |
| 425 } | 425 } |
| 426 | 426 |
| 427 bool isPositive(HInstruction instruction, Compiler compiler) { | 427 bool isPositive(HInstruction instruction, Compiler compiler) { |
| 428 // TODO: We should use the value range analysis. Currently, ranges | 428 // TODO: We should use the value range analysis. Currently, ranges |
| 429 // are discarded just after the analysis. | 429 // are discarded just after the analysis. |
| 430 return instruction.isPositiveInteger(compiler); | 430 return instruction.isPositiveInteger(compiler); |
| 431 } | 431 } |
| 432 } | 432 } |
| 433 | 433 |
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| 719 } | 719 } |
| 720 | 720 |
| 721 HInstruction newBuiltinVariant(HInvokeDynamic instruction, | 721 HInstruction newBuiltinVariant(HInvokeDynamic instruction, |
| 722 Compiler compiler) { | 722 Compiler compiler) { |
| 723 JavaScriptBackend backend = compiler.backend; | 723 JavaScriptBackend backend = compiler.backend; |
| 724 return new HLessEqual( | 724 return new HLessEqual( |
| 725 instruction.inputs[1], instruction.inputs[2], | 725 instruction.inputs[1], instruction.inputs[2], |
| 726 instruction.selector, backend.boolType); | 726 instruction.selector, backend.boolType); |
| 727 } | 727 } |
| 728 } | 728 } |
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