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Issue 754383002: Revert "Integrate the Irregexp Regular Expression Engine." (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 6 years 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 #include "vm/globals.h" // Needed here to get TARGET_ARCH_MIPS. 5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_MIPS.
6 #if defined(TARGET_ARCH_MIPS) 6 #if defined(TARGET_ARCH_MIPS)
7 7
8 #include "vm/intrinsifier.h" 8 #include "vm/intrinsifier.h"
9 9
10 #include "vm/assembler.h" 10 #include "vm/assembler.h"
11 #include "vm/dart_entry.h"
12 #include "vm/flow_graph_compiler.h" 11 #include "vm/flow_graph_compiler.h"
13 #include "vm/object.h" 12 #include "vm/object.h"
14 #include "vm/object_store.h" 13 #include "vm/object_store.h"
15 #include "vm/regexp_assembler.h"
16 #include "vm/symbols.h" 14 #include "vm/symbols.h"
17 15
18 namespace dart { 16 namespace dart {
19 17
20 DECLARE_FLAG(bool, enable_type_checks); 18 DECLARE_FLAG(bool, enable_type_checks);
21 19
22 #define __ assembler-> 20 #define __ assembler->
23 21
24 22
25 intptr_t Intrinsifier::ParameterSlotFromSp() { return -1; } 23 intptr_t Intrinsifier::ParameterSlotFromSp() { return -1; }
(...skipping 2035 matching lines...) Expand 10 before | Expand all | Expand 10 after
2061 2059
2062 void Intrinsifier::OneByteString_equality(Assembler* assembler) { 2060 void Intrinsifier::OneByteString_equality(Assembler* assembler) {
2063 StringEquality(assembler, kOneByteStringCid); 2061 StringEquality(assembler, kOneByteStringCid);
2064 } 2062 }
2065 2063
2066 2064
2067 void Intrinsifier::TwoByteString_equality(Assembler* assembler) { 2065 void Intrinsifier::TwoByteString_equality(Assembler* assembler) {
2068 StringEquality(assembler, kTwoByteStringCid); 2066 StringEquality(assembler, kTwoByteStringCid);
2069 } 2067 }
2070 2068
2071
2072 void Intrinsifier::JSRegExp_ExecuteMatch(Assembler* assembler) {
2073 if (FLAG_use_jscre) {
2074 return;
2075 }
2076 static const intptr_t kRegExpParamOffset = 2 * kWordSize;
2077 static const intptr_t kStringParamOffset = 1 * kWordSize;
2078 // start_index smi is located at 0.
2079
2080 // Incoming registers:
2081 // T0: Function. (Will be reloaded with the specialized matcher function.)
2082 // S4: Arguments descriptor. (Will be preserved.)
2083 // S5: IC-Data. (Will be preserved.)
2084
2085 // Load the specialized function pointer into T0. Leverage the fact the
2086 // string CIDs as well as stored function pointers are in sequence.
2087 __ lw(T1, Address(SP, kRegExpParamOffset));
2088 __ lw(T3, Address(SP, kStringParamOffset));
2089 __ LoadClassId(T2, T3);
2090 __ AddImmediate(T2, -kOneByteStringCid);
2091 __ sll(T2, T2, kWordSizeLog2);
2092 __ addu(T2, T2, T1);
2093 __ lw(T0, FieldAddress(T2, JSRegExp::function_offset(kOneByteStringCid)));
2094
2095 // Registers are now set up for the lazy compile stub. It expects the function
2096 // in T0, the argument descriptor in S4, and IC-Data in S5.
2097 static const intptr_t arg_count = RegExpMacroAssembler::kParamCount;
2098 __ LoadObject(S4, Array::Handle(ArgumentsDescriptor::New(arg_count)));
2099
2100 // Tail-call the function.
2101 __ lw(T3, FieldAddress(T0, Function::instructions_offset()));
2102 __ AddImmediate(T3, Instructions::HeaderSize() - kHeapObjectTag);
2103 __ jr(T3);
2104 }
2105
2106
2107 // On stack: user tag (+0). 2069 // On stack: user tag (+0).
2108 void Intrinsifier::UserTag_makeCurrent(Assembler* assembler) { 2070 void Intrinsifier::UserTag_makeCurrent(Assembler* assembler) {
2109 // T1: Isolate. 2071 // T1: Isolate.
2110 Isolate* isolate = Isolate::Current(); 2072 Isolate* isolate = Isolate::Current();
2111 __ LoadImmediate(T1, reinterpret_cast<uword>(isolate)); 2073 __ LoadImmediate(T1, reinterpret_cast<uword>(isolate));
2112 // V0: Current user tag. 2074 // V0: Current user tag.
2113 __ lw(V0, Address(T1, Isolate::current_tag_offset())); 2075 __ lw(V0, Address(T1, Isolate::current_tag_offset()));
2114 // T2: UserTag. 2076 // T2: UserTag.
2115 __ lw(T2, Address(SP, + 0 * kWordSize)); 2077 __ lw(T2, Address(SP, + 0 * kWordSize));
2116 // Set Isolate::current_tag_. 2078 // Set Isolate::current_tag_.
(...skipping 22 matching lines...) Expand all
2139 Isolate* isolate = Isolate::Current(); 2101 Isolate* isolate = Isolate::Current();
2140 __ LoadImmediate(V0, reinterpret_cast<uword>(isolate)); 2102 __ LoadImmediate(V0, reinterpret_cast<uword>(isolate));
2141 // Set return value. 2103 // Set return value.
2142 __ Ret(); 2104 __ Ret();
2143 __ delay_slot()->lw(V0, Address(V0, Isolate::current_tag_offset())); 2105 __ delay_slot()->lw(V0, Address(V0, Isolate::current_tag_offset()));
2144 } 2106 }
2145 2107
2146 } // namespace dart 2108 } // namespace dart
2147 2109
2148 #endif // defined TARGET_ARCH_MIPS 2110 #endif // defined TARGET_ARCH_MIPS
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