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1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2014, 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_ARM64. | 5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_ARM64. |
6 #if defined(TARGET_ARCH_ARM64) | 6 #if defined(TARGET_ARCH_ARM64) |
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" | 11 #include "vm/dart_entry.h" |
12 #include "vm/flow_graph_compiler.h" | 12 #include "vm/flow_graph_compiler.h" |
13 #include "vm/object.h" | 13 #include "vm/object.h" |
14 #include "vm/object_store.h" | 14 #include "vm/object_store.h" |
15 #include "vm/regexp_assembler.h" | 15 #include "vm/regexp_assembler.h" |
16 #include "vm/symbols.h" | 16 #include "vm/symbols.h" |
17 | 17 |
18 namespace dart { | 18 namespace dart { |
19 | 19 |
| 20 DECLARE_FLAG(bool, interpret_irregexp); |
| 21 |
20 // When entering intrinsics code: | 22 // When entering intrinsics code: |
21 // R5: IC Data | 23 // R5: IC Data |
22 // R4: Arguments descriptor | 24 // R4: Arguments descriptor |
23 // LR: Return address | 25 // LR: Return address |
24 // The R5, R4 registers can be destroyed only if there is no slow-path, i.e. | 26 // The R5, R4 registers can be destroyed only if there is no slow-path, i.e. |
25 // if the intrinsified method always executes a return. | 27 // if the intrinsified method always executes a return. |
26 // The FP register should not be modified, because it is used by the profiler. | 28 // The FP register should not be modified, because it is used by the profiler. |
27 | 29 |
28 #define __ assembler-> | 30 #define __ assembler-> |
29 | 31 |
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2060 StringEquality(assembler, kOneByteStringCid); | 2062 StringEquality(assembler, kOneByteStringCid); |
2061 } | 2063 } |
2062 | 2064 |
2063 | 2065 |
2064 void Intrinsifier::TwoByteString_equality(Assembler* assembler) { | 2066 void Intrinsifier::TwoByteString_equality(Assembler* assembler) { |
2065 StringEquality(assembler, kTwoByteStringCid); | 2067 StringEquality(assembler, kTwoByteStringCid); |
2066 } | 2068 } |
2067 | 2069 |
2068 | 2070 |
2069 void Intrinsifier::JSRegExp_ExecuteMatch(Assembler* assembler) { | 2071 void Intrinsifier::JSRegExp_ExecuteMatch(Assembler* assembler) { |
| 2072 if (FLAG_interpret_irregexp) return; |
| 2073 |
2070 static const intptr_t kRegExpParamOffset = 2 * kWordSize; | 2074 static const intptr_t kRegExpParamOffset = 2 * kWordSize; |
2071 static const intptr_t kStringParamOffset = 1 * kWordSize; | 2075 static const intptr_t kStringParamOffset = 1 * kWordSize; |
2072 // start_index smi is located at offset 0. | 2076 // start_index smi is located at offset 0. |
2073 | 2077 |
2074 // Incoming registers: | 2078 // Incoming registers: |
2075 // R0: Function. (Will be reloaded with the specialized matcher function.) | 2079 // R0: Function. (Will be reloaded with the specialized matcher function.) |
2076 // R4: Arguments descriptor. (Will be preserved.) | 2080 // R4: Arguments descriptor. (Will be preserved.) |
2077 // R5: Unknown. (Must be GC safe on tail call.) | 2081 // R5: Unknown. (Must be GC safe on tail call.) |
2078 | 2082 |
2079 // Load the specialized function pointer into R0. Leverage the fact the | 2083 // Load the specialized function pointer into R0. Leverage the fact the |
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2133 Isolate* isolate = Isolate::Current(); | 2137 Isolate* isolate = Isolate::Current(); |
2134 __ LoadImmediate(R1, reinterpret_cast<uword>(isolate), kNoPP); | 2138 __ LoadImmediate(R1, reinterpret_cast<uword>(isolate), kNoPP); |
2135 // Set return value to Isolate::current_tag_. | 2139 // Set return value to Isolate::current_tag_. |
2136 __ ldr(R0, Address(R1, Isolate::current_tag_offset())); | 2140 __ ldr(R0, Address(R1, Isolate::current_tag_offset())); |
2137 __ ret(); | 2141 __ ret(); |
2138 } | 2142 } |
2139 | 2143 |
2140 } // namespace dart | 2144 } // namespace dart |
2141 | 2145 |
2142 #endif // defined TARGET_ARCH_ARM64 | 2146 #endif // defined TARGET_ARCH_ARM64 |
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