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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" | 5 #include "vm/globals.h" |
6 #if defined(TARGET_ARCH_ARM) | 6 #if defined(TARGET_ARCH_ARM) |
7 | 7 |
8 #include "vm/assembler.h" | 8 #include "vm/assembler.h" |
9 #include "vm/code_generator.h" | 9 #include "vm/code_generator.h" |
10 #include "vm/cpu.h" | 10 #include "vm/cpu.h" |
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2116 __ bx(R1); | 2116 __ bx(R1); |
2117 | 2117 |
2118 __ Bind(&miss); | 2118 __ Bind(&miss); |
2119 __ LoadIsolate(R2); | 2119 __ LoadIsolate(R2); |
2120 __ ldr(CODE_REG, Address(R2, Isolate::ic_miss_code_offset())); | 2120 __ ldr(CODE_REG, Address(R2, Isolate::ic_miss_code_offset())); |
2121 __ ldr(R1, FieldAddress(CODE_REG, Code::entry_point_offset())); | 2121 __ ldr(R1, FieldAddress(CODE_REG, Code::entry_point_offset())); |
2122 __ bx(R1); | 2122 __ bx(R1); |
2123 } | 2123 } |
2124 | 2124 |
2125 | 2125 |
| 2126 // Called from switchable IC calls. |
| 2127 // R0: receiver |
| 2128 // R9: SingleTargetCache |
| 2129 // Passed to target: |
| 2130 // CODE_REG: target Code object |
| 2131 void StubCode::GenerateSingleTargetCallStub(Assembler* assembler) { |
| 2132 __ NoMonomorphicCheckedEntry(); |
| 2133 |
| 2134 Label miss; |
| 2135 |
| 2136 __ LoadClassIdMayBeSmi(R1, R0); |
| 2137 __ ldrh(R2, FieldAddress(R9, SingleTargetCache::lower_limit_offset())); |
| 2138 __ ldrh(R3, FieldAddress(R9, SingleTargetCache::upper_limit_offset())); |
| 2139 |
| 2140 __ cmp(R1, Operand(R2)); |
| 2141 __ b(&miss, LT); |
| 2142 __ cmp(R1, Operand(R3)); |
| 2143 __ b(&miss, GT); |
| 2144 |
| 2145 __ ldr(R1, FieldAddress(R9, SingleTargetCache::entry_point_offset())); |
| 2146 __ ldr(CODE_REG, FieldAddress(R9, SingleTargetCache::target_offset())); |
| 2147 __ bx(R1); |
| 2148 |
| 2149 __ Bind(&miss); |
| 2150 __ EnterStubFrame(); |
| 2151 __ Push(R0); // Preserve receiver. |
| 2152 |
| 2153 __ PushObject(Object::null_object()); // Result. |
| 2154 __ Push(R0); // Arg0: Receiver |
| 2155 __ CallRuntime(kSingleTargetMissRuntimeEntry, 1); |
| 2156 __ Drop(1); |
| 2157 __ Pop(R9); // result = IC |
| 2158 |
| 2159 __ Pop(R0); // Restore receiver. |
| 2160 __ LeaveStubFrame(); |
| 2161 |
| 2162 __ ldr(CODE_REG, Address(THR, Thread::ic_lookup_through_code_stub_offset())); |
| 2163 __ ldr(R1, FieldAddress(CODE_REG, Code::checked_entry_point_offset())); |
| 2164 __ bx(R1); |
| 2165 } |
| 2166 |
| 2167 |
2126 // Called from the monomorphic checked entry. | 2168 // Called from the monomorphic checked entry. |
2127 // R0: receiver | 2169 // R0: receiver |
2128 void StubCode::GenerateMonomorphicMissStub(Assembler* assembler) { | 2170 void StubCode::GenerateMonomorphicMissStub(Assembler* assembler) { |
2129 __ EnterStubFrame(); | 2171 __ EnterStubFrame(); |
2130 __ Push(R0); // Preserve receiver. | 2172 __ Push(R0); // Preserve receiver. |
2131 | 2173 |
2132 __ PushObject(Object::null_object()); // Result. | 2174 __ PushObject(Object::null_object()); // Result. |
2133 __ Push(R0); // Arg0: Receiver | 2175 __ Push(R0); // Arg0: Receiver |
2134 __ CallRuntime(kMonomorphicMissRuntimeEntry, 1); | 2176 __ CallRuntime(kMonomorphicMissRuntimeEntry, 1); |
2135 __ Drop(1); | 2177 __ Drop(1); |
2136 __ Pop(R9); // result = IC | 2178 __ Pop(R9); // result = IC |
2137 | 2179 |
2138 __ Pop(R0); // Restore receiver. | 2180 __ Pop(R0); // Restore receiver. |
2139 __ LeaveStubFrame(); | 2181 __ LeaveStubFrame(); |
2140 | 2182 |
2141 __ ldr(CODE_REG, Address(THR, Thread::ic_lookup_through_code_stub_offset())); | 2183 __ ldr(CODE_REG, Address(THR, Thread::ic_lookup_through_code_stub_offset())); |
2142 __ ldr(R1, FieldAddress(CODE_REG, Code::checked_entry_point_offset())); | 2184 __ ldr(R1, FieldAddress(CODE_REG, Code::checked_entry_point_offset())); |
2143 __ bx(R1); | 2185 __ bx(R1); |
2144 } | 2186 } |
2145 | 2187 |
2146 | 2188 |
2147 void StubCode::GenerateFrameAwaitingMaterializationStub(Assembler* assembler) { | 2189 void StubCode::GenerateFrameAwaitingMaterializationStub(Assembler* assembler) { |
2148 __ bkpt(0); | 2190 __ bkpt(0); |
2149 } | 2191 } |
2150 | 2192 |
2151 } // namespace dart | 2193 } // namespace dart |
2152 | 2194 |
2153 #endif // defined TARGET_ARCH_ARM | 2195 #endif // defined TARGET_ARCH_ARM |
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