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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 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 1209 | 1209 |
| 1210 | 1210 |
| 1211 void MacroAssembler::TailCallStub(CodeStub* stub) { | 1211 void MacroAssembler::TailCallStub(CodeStub* stub) { |
| 1212 ASSERT(allow_stub_calls_ || | 1212 ASSERT(allow_stub_calls_ || |
| 1213 stub->CompilingCallsToThisStubIsGCSafe(isolate())); | 1213 stub->CompilingCallsToThisStubIsGCSafe(isolate())); |
| 1214 Jump(stub->GetCode(isolate()), RelocInfo::CODE_TARGET); | 1214 Jump(stub->GetCode(isolate()), RelocInfo::CODE_TARGET); |
| 1215 } | 1215 } |
| 1216 | 1216 |
| 1217 | 1217 |
| 1218 void MacroAssembler::CallRuntime(const Runtime::Function* f, | 1218 void MacroAssembler::CallRuntime(const Runtime::Function* f, |
| 1219 int num_arguments) { | 1219 int num_arguments, |
| 1220 SaveFPRegsMode save_doubles) { |
| 1220 // All arguments must be on the stack before this function is called. | 1221 // All arguments must be on the stack before this function is called. |
| 1221 // x0 holds the return value after the call. | 1222 // x0 holds the return value after the call. |
| 1222 | 1223 |
| 1223 // Check that the number of arguments matches what the function expects. | 1224 // Check that the number of arguments matches what the function expects. |
| 1224 // If f->nargs is -1, the function can accept a variable number of arguments. | 1225 // If f->nargs is -1, the function can accept a variable number of arguments. |
| 1225 if (f->nargs >= 0 && f->nargs != num_arguments) { | 1226 if (f->nargs >= 0 && f->nargs != num_arguments) { |
| 1226 // Illegal operation: drop the stack arguments and return undefined. | 1227 // Illegal operation: drop the stack arguments and return undefined. |
| 1227 if (num_arguments > 0) { | 1228 if (num_arguments > 0) { |
| 1228 Drop(num_arguments); | 1229 Drop(num_arguments); |
| 1229 } | 1230 } |
| 1230 LoadRoot(x0, Heap::kUndefinedValueRootIndex); | 1231 LoadRoot(x0, Heap::kUndefinedValueRootIndex); |
| 1231 return; | 1232 return; |
| 1232 } | 1233 } |
| 1233 | 1234 |
| 1234 // Place the necessary arguments. | 1235 // Place the necessary arguments. |
| 1235 Mov(x0, num_arguments); | 1236 Mov(x0, num_arguments); |
| 1236 Mov(x1, Operand(ExternalReference(f, isolate()))); | 1237 Mov(x1, Operand(ExternalReference(f, isolate()))); |
| 1237 | 1238 |
| 1238 CEntryStub stub(1); | 1239 CEntryStub stub(1, save_doubles); |
| 1239 CallStub(&stub); | 1240 CallStub(&stub); |
| 1240 } | 1241 } |
| 1241 | 1242 |
| 1242 | |
| 1243 void MacroAssembler::CallRuntime(Runtime::FunctionId fid, int num_arguments) { | |
| 1244 CallRuntime(Runtime::FunctionForId(fid), num_arguments); | |
| 1245 } | |
| 1246 | |
| 1247 | |
| 1248 void MacroAssembler::CallRuntimeSaveDoubles(Runtime::FunctionId id) { | |
| 1249 const Runtime::Function* function = Runtime::FunctionForId(id); | |
| 1250 | |
| 1251 // Place the necessary arguments. | |
| 1252 Mov(x0, function->nargs); | |
| 1253 Mov(x1, Operand(ExternalReference(function, isolate()))); | |
| 1254 | |
| 1255 CEntryStub stub(1, kSaveFPRegs); | |
| 1256 CallStub(&stub); | |
| 1257 } | |
| 1258 | |
| 1259 | 1243 |
| 1260 static int AddressOffset(ExternalReference ref0, ExternalReference ref1) { | 1244 static int AddressOffset(ExternalReference ref0, ExternalReference ref1) { |
| 1261 return ref0.address() - ref1.address(); | 1245 return ref0.address() - ref1.address(); |
| 1262 } | 1246 } |
| 1263 | 1247 |
| 1264 | 1248 |
| 1265 void MacroAssembler::CallApiFunctionAndReturn( | 1249 void MacroAssembler::CallApiFunctionAndReturn( |
| 1266 ExternalReference function, | 1250 ExternalReference function, |
| 1267 Address function_address, | 1251 Address function_address, |
| 1268 ExternalReference thunk_ref, | 1252 ExternalReference thunk_ref, |
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| 4713 } | 4697 } |
| 4714 } | 4698 } |
| 4715 | 4699 |
| 4716 | 4700 |
| 4717 #undef __ | 4701 #undef __ |
| 4718 | 4702 |
| 4719 | 4703 |
| 4720 } } // namespace v8::internal | 4704 } } // namespace v8::internal |
| 4721 | 4705 |
| 4722 #endif // V8_TARGET_ARCH_A64 | 4706 #endif // V8_TARGET_ARCH_A64 |
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