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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #if V8_TARGET_ARCH_ARM64 | 5 #if V8_TARGET_ARCH_ARM64 |
6 | 6 |
7 #include "src/arm64/frames-arm64.h" | 7 #include "src/arm64/frames-arm64.h" |
8 #include "src/codegen.h" | 8 #include "src/codegen.h" |
9 #include "src/debug/debug.h" | 9 #include "src/debug/debug.h" |
10 #include "src/deoptimizer.h" | 10 #include "src/deoptimizer.h" |
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1179 // arguments should be consecutive above this, in the same order as | 1179 // arguments should be consecutive above this, in the same order as |
1180 // they are to be pushed onto the stack. | 1180 // they are to be pushed onto the stack. |
1181 // -- x1 : the target to call (can be any Object). | 1181 // -- x1 : the target to call (can be any Object). |
1182 // ----------------------------------- | 1182 // ----------------------------------- |
1183 | 1183 |
1184 // Find the address of the last argument. | 1184 // Find the address of the last argument. |
1185 __ add(x3, x0, Operand(1)); // Add one for receiver. | 1185 __ add(x3, x0, Operand(1)); // Add one for receiver. |
1186 __ lsl(x3, x3, kPointerSizeLog2); | 1186 __ lsl(x3, x3, kPointerSizeLog2); |
1187 __ sub(x4, x2, x3); | 1187 __ sub(x4, x2, x3); |
1188 | 1188 |
| 1189 // TODO(mythria): Add a stack check before pushing arguments. |
1189 // Push the arguments. | 1190 // Push the arguments. |
1190 Label loop_header, loop_check; | 1191 Label loop_header, loop_check; |
1191 __ Mov(x5, jssp); | 1192 __ Mov(x5, jssp); |
1192 __ Claim(x3, 1); | 1193 __ Claim(x3, 1); |
1193 __ B(&loop_check); | 1194 __ B(&loop_check); |
1194 __ Bind(&loop_header); | 1195 __ Bind(&loop_header); |
1195 // TODO(rmcilroy): Push two at a time once we ensure we keep stack aligned. | 1196 // TODO(rmcilroy): Push two at a time once we ensure we keep stack aligned. |
1196 __ Ldr(x3, MemOperand(x2, -kPointerSize, PostIndex)); | 1197 __ Ldr(x3, MemOperand(x2, -kPointerSize, PostIndex)); |
1197 __ Str(x3, MemOperand(x5, -kPointerSize, PreIndex)); | 1198 __ Str(x3, MemOperand(x5, -kPointerSize, PreIndex)); |
1198 __ Bind(&loop_check); | 1199 __ Bind(&loop_check); |
1199 __ Cmp(x2, x4); | 1200 __ Cmp(x2, x4); |
1200 __ B(gt, &loop_header); | 1201 __ B(gt, &loop_header); |
1201 | 1202 |
1202 // Call the target. | 1203 // Call the target. |
1203 if (function_type == CallableType::kJSFunction) { | 1204 if (function_type == CallableType::kJSFunction) { |
1204 __ Jump(masm->isolate()->builtins()->CallFunction(ConvertReceiverMode::kAny, | 1205 __ Jump(masm->isolate()->builtins()->CallFunction(ConvertReceiverMode::kAny, |
1205 tail_call_mode), | 1206 tail_call_mode), |
1206 RelocInfo::CODE_TARGET); | 1207 RelocInfo::CODE_TARGET); |
1207 } else { | 1208 } else { |
1208 DCHECK_EQ(function_type, CallableType::kAny); | 1209 DCHECK_EQ(function_type, CallableType::kAny); |
1209 __ Jump(masm->isolate()->builtins()->Call(ConvertReceiverMode::kAny, | 1210 __ Jump(masm->isolate()->builtins()->Call(ConvertReceiverMode::kAny, |
1210 tail_call_mode), | 1211 tail_call_mode), |
1211 RelocInfo::CODE_TARGET); | 1212 RelocInfo::CODE_TARGET); |
1212 } | 1213 } |
1213 } | 1214 } |
1214 | 1215 |
1215 // static | 1216 // static |
1216 void Builtins::Generate_InterpreterPushArgsAndConstruct(MacroAssembler* masm) { | 1217 void Builtins::Generate_InterpreterPushArgsAndConstructImpl( |
| 1218 MacroAssembler* masm, CallableType construct_type) { |
1217 // ----------- S t a t e ------------- | 1219 // ----------- S t a t e ------------- |
1218 // -- x0 : argument count (not including receiver) | 1220 // -- x0 : argument count (not including receiver) |
1219 // -- x3 : new target | 1221 // -- x3 : new target |
1220 // -- x1 : constructor to call | 1222 // -- x1 : constructor to call |
1221 // -- x2 : address of the first argument | 1223 // -- x2 : allocation site feedback if available, undefined otherwise |
| 1224 // -- x4 : address of the first argument |
1222 // ----------------------------------- | 1225 // ----------------------------------- |
1223 | 1226 |
1224 // Find the address of the last argument. | 1227 // Find the address of the last argument. |
1225 __ add(x5, x0, Operand(1)); // Add one for receiver (to be constructed). | 1228 __ add(x5, x0, Operand(1)); // Add one for receiver (to be constructed). |
1226 __ lsl(x5, x5, kPointerSizeLog2); | 1229 __ lsl(x5, x5, kPointerSizeLog2); |
1227 | 1230 |
1228 // Set stack pointer and where to stop. | 1231 // Set stack pointer and where to stop. |
1229 __ Mov(x6, jssp); | 1232 __ Mov(x6, jssp); |
1230 __ Claim(x5, 1); | 1233 __ Claim(x5, 1); |
1231 __ sub(x4, x6, x5); | 1234 __ sub(x7, x6, x5); |
1232 | 1235 |
1233 // Push a slot for the receiver. | 1236 // Push a slot for the receiver. |
1234 __ Str(xzr, MemOperand(x6, -kPointerSize, PreIndex)); | 1237 __ Str(xzr, MemOperand(x6, -kPointerSize, PreIndex)); |
1235 | 1238 |
1236 Label loop_header, loop_check; | 1239 Label loop_header, loop_check; |
| 1240 // TODO(mythria): Add a stack check before pushing arguments. |
1237 // Push the arguments. | 1241 // Push the arguments. |
1238 __ B(&loop_check); | 1242 __ B(&loop_check); |
1239 __ Bind(&loop_header); | 1243 __ Bind(&loop_header); |
1240 // TODO(rmcilroy): Push two at a time once we ensure we keep stack aligned. | 1244 // TODO(rmcilroy): Push two at a time once we ensure we keep stack aligned. |
1241 __ Ldr(x5, MemOperand(x2, -kPointerSize, PostIndex)); | 1245 __ Ldr(x5, MemOperand(x4, -kPointerSize, PostIndex)); |
1242 __ Str(x5, MemOperand(x6, -kPointerSize, PreIndex)); | 1246 __ Str(x5, MemOperand(x6, -kPointerSize, PreIndex)); |
1243 __ Bind(&loop_check); | 1247 __ Bind(&loop_check); |
1244 __ Cmp(x6, x4); | 1248 __ Cmp(x6, x7); |
1245 __ B(gt, &loop_header); | 1249 __ B(gt, &loop_header); |
1246 | 1250 |
1247 // Call the constructor with x0, x1, and x3 unmodified. | 1251 __ AssertUndefinedOrAllocationSite(x2, x6); |
1248 __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); | 1252 if (construct_type == CallableType::kJSFunction) { |
| 1253 __ AssertFunction(x1); |
| 1254 |
| 1255 // Tail call to the function-specific construct stub (still in the caller |
| 1256 // context at this point). |
| 1257 __ Ldr(x4, FieldMemOperand(x1, JSFunction::kSharedFunctionInfoOffset)); |
| 1258 __ Ldr(x4, FieldMemOperand(x4, SharedFunctionInfo::kConstructStubOffset)); |
| 1259 __ Add(x4, x4, Code::kHeaderSize - kHeapObjectTag); |
| 1260 __ Br(x4); |
| 1261 } else { |
| 1262 DCHECK_EQ(construct_type, CallableType::kAny); |
| 1263 // Call the constructor with x0, x1, and x3 unmodified. |
| 1264 __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); |
| 1265 } |
1249 } | 1266 } |
1250 | 1267 |
1251 void Builtins::Generate_InterpreterEnterBytecodeDispatch(MacroAssembler* masm) { | 1268 void Builtins::Generate_InterpreterEnterBytecodeDispatch(MacroAssembler* masm) { |
1252 // Set the return address to the correct point in the interpreter entry | 1269 // Set the return address to the correct point in the interpreter entry |
1253 // trampoline. | 1270 // trampoline. |
1254 Smi* interpreter_entry_return_pc_offset( | 1271 Smi* interpreter_entry_return_pc_offset( |
1255 masm->isolate()->heap()->interpreter_entry_return_pc_offset()); | 1272 masm->isolate()->heap()->interpreter_entry_return_pc_offset()); |
1256 DCHECK_NE(interpreter_entry_return_pc_offset, Smi::FromInt(0)); | 1273 DCHECK_NE(interpreter_entry_return_pc_offset, Smi::FromInt(0)); |
1257 __ LoadObject(x1, masm->isolate()->builtins()->InterpreterEntryTrampoline()); | 1274 __ LoadObject(x1, masm->isolate()->builtins()->InterpreterEntryTrampoline()); |
1258 __ Add(lr, x1, Operand(interpreter_entry_return_pc_offset->value() + | 1275 __ Add(lr, x1, Operand(interpreter_entry_return_pc_offset->value() + |
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3033 __ Unreachable(); | 3050 __ Unreachable(); |
3034 } | 3051 } |
3035 } | 3052 } |
3036 | 3053 |
3037 #undef __ | 3054 #undef __ |
3038 | 3055 |
3039 } // namespace internal | 3056 } // namespace internal |
3040 } // namespace v8 | 3057 } // namespace v8 |
3041 | 3058 |
3042 #endif // V8_TARGET_ARCH_ARM | 3059 #endif // V8_TARGET_ARCH_ARM |
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