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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_MIPS | 7 #if V8_TARGET_ARCH_MIPS |
8 | 8 |
9 #include "src/bootstrapper.h" | 9 #include "src/bootstrapper.h" |
10 #include "src/code-stubs.h" | 10 #include "src/code-stubs.h" |
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3233 Label miss; | 3233 Label miss; |
3234 | 3234 |
3235 EmitLoadTypeFeedbackVector(masm, a2); | 3235 EmitLoadTypeFeedbackVector(masm, a2); |
3236 | 3236 |
3237 __ LoadGlobalFunction(Context::ARRAY_FUNCTION_INDEX, at); | 3237 __ LoadGlobalFunction(Context::ARRAY_FUNCTION_INDEX, at); |
3238 __ Branch(&miss, ne, a1, Operand(at)); | 3238 __ Branch(&miss, ne, a1, Operand(at)); |
3239 | 3239 |
3240 __ li(a0, Operand(arg_count())); | 3240 __ li(a0, Operand(arg_count())); |
3241 __ sll(at, a3, kPointerSizeLog2 - kSmiTagSize); | 3241 __ sll(at, a3, kPointerSizeLog2 - kSmiTagSize); |
3242 __ Addu(at, a2, Operand(at)); | 3242 __ Addu(at, a2, Operand(at)); |
3243 __ lw(a2, FieldMemOperand(at, FixedArray::kHeaderSize)); | 3243 __ lw(t0, FieldMemOperand(at, FixedArray::kHeaderSize)); |
3244 // Verify that a2 contains an AllocationSite | 3244 |
3245 __ AssertUndefinedOrAllocationSite(a2, at); | 3245 // Verify that t0 contains an AllocationSite |
| 3246 __ lw(t1, FieldMemOperand(t0, HeapObject::kMapOffset)); |
| 3247 __ LoadRoot(at, Heap::kAllocationSiteMapRootIndex); |
| 3248 __ Branch(&miss, ne, t1, Operand(at)); |
| 3249 |
| 3250 __ mov(a2, t0); |
3246 ArrayConstructorStub stub(masm->isolate(), arg_count()); | 3251 ArrayConstructorStub stub(masm->isolate(), arg_count()); |
3247 __ TailCallStub(&stub); | 3252 __ TailCallStub(&stub); |
3248 | 3253 |
3249 __ bind(&miss); | 3254 __ bind(&miss); |
3250 GenerateMiss(masm, IC::kCallIC_Customization_Miss); | 3255 GenerateMiss(masm, IC::kCallIC_Customization_Miss); |
3251 | 3256 |
3252 // The slow case, we need this no matter what to complete a call after a miss. | 3257 // The slow case, we need this no matter what to complete a call after a miss. |
3253 CallFunctionNoFeedback(masm, | 3258 CallFunctionNoFeedback(masm, |
3254 arg_count(), | 3259 arg_count(), |
3255 true, | 3260 true, |
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3302 | 3307 |
3303 __ bind(&extra_checks_or_miss); | 3308 __ bind(&extra_checks_or_miss); |
3304 Label miss; | 3309 Label miss; |
3305 | 3310 |
3306 __ LoadRoot(at, Heap::kMegamorphicSymbolRootIndex); | 3311 __ LoadRoot(at, Heap::kMegamorphicSymbolRootIndex); |
3307 __ Branch(&slow_start, eq, t0, Operand(at)); | 3312 __ Branch(&slow_start, eq, t0, Operand(at)); |
3308 __ LoadRoot(at, Heap::kUninitializedSymbolRootIndex); | 3313 __ LoadRoot(at, Heap::kUninitializedSymbolRootIndex); |
3309 __ Branch(&miss, eq, t0, Operand(at)); | 3314 __ Branch(&miss, eq, t0, Operand(at)); |
3310 | 3315 |
3311 if (!FLAG_trace_ic) { | 3316 if (!FLAG_trace_ic) { |
3312 // We are going megamorphic, and we don't want to visit the runtime. | 3317 // We are going megamorphic. If the feedback is a JSFunction, it is fine |
| 3318 // to handle it here. More complex cases are dealt with in the runtime. |
| 3319 __ AssertNotSmi(t0); |
| 3320 __ GetObjectType(t0, t1, t1); |
| 3321 __ Branch(&miss, ne, t1, Operand(JS_FUNCTION_TYPE)); |
3313 __ sll(t0, a3, kPointerSizeLog2 - kSmiTagSize); | 3322 __ sll(t0, a3, kPointerSizeLog2 - kSmiTagSize); |
3314 __ Addu(t0, a2, Operand(t0)); | 3323 __ Addu(t0, a2, Operand(t0)); |
3315 __ LoadRoot(at, Heap::kMegamorphicSymbolRootIndex); | 3324 __ LoadRoot(at, Heap::kMegamorphicSymbolRootIndex); |
3316 __ sw(at, FieldMemOperand(t0, FixedArray::kHeaderSize)); | 3325 __ sw(at, FieldMemOperand(t0, FixedArray::kHeaderSize)); |
3317 __ Branch(&slow_start); | 3326 __ Branch(&slow_start); |
3318 } | 3327 } |
3319 | 3328 |
3320 // We are here because tracing is on or we are going monomorphic. | 3329 // We are here because tracing is on or we are going monomorphic. |
3321 __ bind(&miss); | 3330 __ bind(&miss); |
3322 GenerateMiss(masm, IC::kCallIC_Miss); | 3331 GenerateMiss(masm, IC::kCallIC_Miss); |
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5407 MemOperand(fp, 6 * kPointerSize), | 5416 MemOperand(fp, 6 * kPointerSize), |
5408 NULL); | 5417 NULL); |
5409 } | 5418 } |
5410 | 5419 |
5411 | 5420 |
5412 #undef __ | 5421 #undef __ |
5413 | 5422 |
5414 } } // namespace v8::internal | 5423 } } // namespace v8::internal |
5415 | 5424 |
5416 #endif // V8_TARGET_ARCH_MIPS | 5425 #endif // V8_TARGET_ARCH_MIPS |
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