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Issue 1270803003: VM: More abstract interface for generating stub calls. (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: Created 5 years, 4 months 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" 5 #include "vm/globals.h"
6 #if defined(TARGET_ARCH_MIPS) 6 #if defined(TARGET_ARCH_MIPS)
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/compiler.h" 10 #include "vm/compiler.h"
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388 388
389 // Input parameters: 389 // Input parameters:
390 // A1: Smi-tagged argument count, may be zero. 390 // A1: Smi-tagged argument count, may be zero.
391 // FP[kParamEndSlotFromFp + 1]: Last argument. 391 // FP[kParamEndSlotFromFp + 1]: Last argument.
392 static void PushArgumentsArray(Assembler* assembler) { 392 static void PushArgumentsArray(Assembler* assembler) {
393 __ Comment("PushArgumentsArray"); 393 __ Comment("PushArgumentsArray");
394 // Allocate array to store arguments of caller. 394 // Allocate array to store arguments of caller.
395 __ LoadImmediate(A0, reinterpret_cast<intptr_t>(Object::null())); 395 __ LoadImmediate(A0, reinterpret_cast<intptr_t>(Object::null()));
396 // A0: Null element type for raw Array. 396 // A0: Null element type for raw Array.
397 // A1: Smi-tagged argument count, may be zero. 397 // A1: Smi-tagged argument count, may be zero.
398 const ExternalLabel array_label(StubCode::AllocateArrayEntryPoint()); 398 __ BranchLink(*StubCode::AllocateArray_entry());
399 __ BranchLink(&array_label);
400 __ Comment("PushArgumentsArray return"); 399 __ Comment("PushArgumentsArray return");
401 // V0: newly allocated array. 400 // V0: newly allocated array.
402 // A1: Smi-tagged argument count, may be zero (was preserved by the stub). 401 // A1: Smi-tagged argument count, may be zero (was preserved by the stub).
403 __ Push(V0); // Array is in V0 and on top of stack. 402 __ Push(V0); // Array is in V0 and on top of stack.
404 __ sll(T1, A1, 1); 403 __ sll(T1, A1, 1);
405 __ addu(T1, FP, T1); 404 __ addu(T1, FP, T1);
406 __ AddImmediate(T1, kParamEndSlotFromFp * kWordSize); 405 __ AddImmediate(T1, kParamEndSlotFromFp * kWordSize);
407 // T1: address of first argument on stack. 406 // T1: address of first argument on stack.
408 // T2: address of first argument in array. 407 // T2: address of first argument in array.
409 408
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1253 } 1252 }
1254 __ CallRuntime(kAllocateObjectRuntimeEntry, 2); // Allocate object. 1253 __ CallRuntime(kAllocateObjectRuntimeEntry, 2); // Allocate object.
1255 __ Comment("AllocationStubForClass return"); 1254 __ Comment("AllocationStubForClass return");
1256 // Pop result (newly allocated object). 1255 // Pop result (newly allocated object).
1257 __ lw(V0, Address(SP, 2 * kWordSize)); 1256 __ lw(V0, Address(SP, 2 * kWordSize));
1258 __ addiu(SP, SP, Immediate(3 * kWordSize)); // Pop arguments. 1257 __ addiu(SP, SP, Immediate(3 * kWordSize)); // Pop arguments.
1259 // V0: new object 1258 // V0: new object
1260 // Restore the frame pointer and return. 1259 // Restore the frame pointer and return.
1261 __ LeaveStubFrameAndReturn(RA); 1260 __ LeaveStubFrameAndReturn(RA);
1262 *patch_code_pc_offset = assembler->CodeSize(); 1261 *patch_code_pc_offset = assembler->CodeSize();
1263 __ BranchPatchable(&StubCode::FixAllocationStubTargetLabel()); 1262 __ BranchPatchable(*StubCode::FixAllocationStubTarget_entry());
1264 } 1263 }
1265 1264
1266 1265
1267 // Called for invoking "dynamic noSuchMethod(Invocation invocation)" function 1266 // Called for invoking "dynamic noSuchMethod(Invocation invocation)" function
1268 // from the entry code of a dart function after an error in passed argument 1267 // from the entry code of a dart function after an error in passed argument
1269 // name or number is detected. 1268 // name or number is detected.
1270 // Input parameters: 1269 // Input parameters:
1271 // RA : return address. 1270 // RA : return address.
1272 // SP : address of last argument. 1271 // SP : address of last argument.
1273 // S4: arguments descriptor array. 1272 // S4: arguments descriptor array.
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2285 // Result: 2284 // Result:
2286 // T1: entry point. 2285 // T1: entry point.
2287 void StubCode::GenerateMegamorphicLookupStub(Assembler* assembler) { 2286 void StubCode::GenerateMegamorphicLookupStub(Assembler* assembler) {
2288 EmitMegamorphicLookup(assembler, T0, T1, T1); 2287 EmitMegamorphicLookup(assembler, T0, T1, T1);
2289 __ Ret(); 2288 __ Ret();
2290 } 2289 }
2291 2290
2292 } // namespace dart 2291 } // namespace dart
2293 2292
2294 #endif // defined TARGET_ARCH_MIPS 2293 #endif // defined TARGET_ARCH_MIPS
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