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Issue 1815333002: Simpler regex names: (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: sync Created 4 years, 9 months ago
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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 // The intrinsic code below is executed before a method has built its frame. 5 // The intrinsic code below is executed before a method has built its frame.
6 // The return address is on the stack and the arguments below it. 6 // The return address is on the stack and the arguments below it.
7 // Registers EDX (arguments descriptor) and ECX (function) must be preserved. 7 // Registers EDX (arguments descriptor) and ECX (function) must be preserved.
8 // Each intrinsification method returns true if the corresponding 8 // Each intrinsification method returns true if the corresponding
9 // Dart method was intrinsified. 9 // Dart method was intrinsified.
10 10
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2076 void Intrinsifier::OneByteString_equality(Assembler* assembler) { 2076 void Intrinsifier::OneByteString_equality(Assembler* assembler) {
2077 StringEquality(assembler, kOneByteStringCid); 2077 StringEquality(assembler, kOneByteStringCid);
2078 } 2078 }
2079 2079
2080 2080
2081 void Intrinsifier::TwoByteString_equality(Assembler* assembler) { 2081 void Intrinsifier::TwoByteString_equality(Assembler* assembler) {
2082 StringEquality(assembler, kTwoByteStringCid); 2082 StringEquality(assembler, kTwoByteStringCid);
2083 } 2083 }
2084 2084
2085 2085
2086 void Intrinsifier::JSRegExp_ExecuteMatch(Assembler* assembler) { 2086 void Intrinsifier::RegExp_ExecuteMatch(Assembler* assembler) {
2087 if (FLAG_interpret_irregexp) return; 2087 if (FLAG_interpret_irregexp) return;
2088 2088
2089 static const intptr_t kRegExpParamOffset = 3 * kWordSize; 2089 static const intptr_t kRegExpParamOffset = 3 * kWordSize;
2090 static const intptr_t kStringParamOffset = 2 * kWordSize; 2090 static const intptr_t kStringParamOffset = 2 * kWordSize;
2091 // start_index smi is located at offset 1. 2091 // start_index smi is located at offset 1.
2092 2092
2093 // Incoming registers: 2093 // Incoming registers:
2094 // EAX: Function. (Will be loaded with the specialized matcher function.) 2094 // EAX: Function. (Will be loaded with the specialized matcher function.)
2095 // ECX: Unknown. (Must be GC safe on tail call.) 2095 // ECX: Unknown. (Must be GC safe on tail call.)
2096 // EDX: Arguments descriptor. (Will be preserved.) 2096 // EDX: Arguments descriptor. (Will be preserved.)
2097 2097
2098 // Load the specialized function pointer into EAX. Leverage the fact the 2098 // Load the specialized function pointer into EAX. Leverage the fact the
2099 // string CIDs as well as stored function pointers are in sequence. 2099 // string CIDs as well as stored function pointers are in sequence.
2100 __ movl(EBX, Address(ESP, kRegExpParamOffset)); 2100 __ movl(EBX, Address(ESP, kRegExpParamOffset));
2101 __ movl(EDI, Address(ESP, kStringParamOffset)); 2101 __ movl(EDI, Address(ESP, kStringParamOffset));
2102 __ LoadClassId(EDI, EDI); 2102 __ LoadClassId(EDI, EDI);
2103 __ SubImmediate(EDI, Immediate(kOneByteStringCid)); 2103 __ SubImmediate(EDI, Immediate(kOneByteStringCid));
2104 __ movl(EAX, FieldAddress(EBX, EDI, TIMES_4, 2104 __ movl(EAX, FieldAddress(EBX, EDI, TIMES_4,
2105 JSRegExp::function_offset(kOneByteStringCid))); 2105 RegExp::function_offset(kOneByteStringCid)));
2106 2106
2107 // Registers are now set up for the lazy compile stub. It expects the function 2107 // Registers are now set up for the lazy compile stub. It expects the function
2108 // in EAX, the argument descriptor in EDX, and IC-Data in ECX. 2108 // in EAX, the argument descriptor in EDX, and IC-Data in ECX.
2109 __ xorl(ECX, ECX); 2109 __ xorl(ECX, ECX);
2110 2110
2111 // Tail-call the function. 2111 // Tail-call the function.
2112 __ movl(EDI, FieldAddress(EAX, Function::entry_point_offset())); 2112 __ movl(EDI, FieldAddress(EAX, Function::entry_point_offset()));
2113 __ jmp(EDI); 2113 __ jmp(EDI);
2114 } 2114 }
2115 2115
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2142 void Intrinsifier::Profiler_getCurrentTag(Assembler* assembler) { 2142 void Intrinsifier::Profiler_getCurrentTag(Assembler* assembler) {
2143 __ LoadIsolate(EAX); 2143 __ LoadIsolate(EAX);
2144 __ movl(EAX, Address(EAX, Isolate::current_tag_offset())); 2144 __ movl(EAX, Address(EAX, Isolate::current_tag_offset()));
2145 __ ret(); 2145 __ ret();
2146 } 2146 }
2147 2147
2148 #undef __ 2148 #undef __
2149 } // namespace dart 2149 } // namespace dart
2150 2150
2151 #endif // defined TARGET_ARCH_IA32 2151 #endif // defined TARGET_ARCH_IA32
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