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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 #if V8_TARGET_ARCH_MIPS64 | 5 #if V8_TARGET_ARCH_MIPS64 |
6 | 6 |
7 // Note on Mips implementation: | 7 // Note on Mips implementation: |
8 // | 8 // |
9 // The result_register() for mips is the 'v0' register, which is defined | 9 // The result_register() for mips is the 'v0' register, which is defined |
10 // by the ABI to contain function return values. However, the first | 10 // by the ABI to contain function return values. However, the first |
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3178 | 3178 |
3179 // Call the construct call builtin that handles allocation and | 3179 // Call the construct call builtin that handles allocation and |
3180 // constructor invocation. | 3180 // constructor invocation. |
3181 SetConstructCallPosition(expr); | 3181 SetConstructCallPosition(expr); |
3182 | 3182 |
3183 // Load function and argument count into a1 and a0. | 3183 // Load function and argument count into a1 and a0. |
3184 __ li(a0, Operand(arg_count)); | 3184 __ li(a0, Operand(arg_count)); |
3185 __ ld(a1, MemOperand(sp, arg_count * kPointerSize)); | 3185 __ ld(a1, MemOperand(sp, arg_count * kPointerSize)); |
3186 | 3186 |
3187 // Record call targets in unoptimized code. | 3187 // Record call targets in unoptimized code. |
3188 if (FLAG_pretenuring_call_new) { | |
3189 EnsureSlotContainsAllocationSite(expr->AllocationSiteFeedbackSlot()); | |
3190 DCHECK(expr->AllocationSiteFeedbackSlot().ToInt() == | |
3191 expr->CallNewFeedbackSlot().ToInt() + 1); | |
3192 } | |
3193 | |
3194 __ li(a2, FeedbackVector()); | 3188 __ li(a2, FeedbackVector()); |
3195 __ li(a3, Operand(SmiFromSlot(expr->CallNewFeedbackSlot()))); | 3189 __ li(a3, Operand(SmiFromSlot(expr->CallNewFeedbackSlot()))); |
3196 | 3190 |
3197 CallConstructStub stub(isolate(), RECORD_CONSTRUCTOR_TARGET); | 3191 CallConstructStub stub(isolate(), RECORD_CONSTRUCTOR_TARGET); |
3198 __ Call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL); | 3192 __ Call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL); |
3199 PrepareForBailoutForId(expr->ReturnId(), TOS_REG); | 3193 PrepareForBailoutForId(expr->ReturnId(), TOS_REG); |
3200 // Restore context register. | 3194 // Restore context register. |
3201 __ ld(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); | 3195 __ ld(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
3202 context()->Plug(v0); | 3196 context()->Plug(v0); |
3203 } | 3197 } |
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3224 | 3218 |
3225 // Load original constructor into a4. | 3219 // Load original constructor into a4. |
3226 VisitForAccumulatorValue(super_call_ref->new_target_var()); | 3220 VisitForAccumulatorValue(super_call_ref->new_target_var()); |
3227 __ mov(a4, result_register()); | 3221 __ mov(a4, result_register()); |
3228 | 3222 |
3229 // Load function and argument count into a1 and a0. | 3223 // Load function and argument count into a1 and a0. |
3230 __ li(a0, Operand(arg_count)); | 3224 __ li(a0, Operand(arg_count)); |
3231 __ ld(a1, MemOperand(sp, arg_count * kPointerSize)); | 3225 __ ld(a1, MemOperand(sp, arg_count * kPointerSize)); |
3232 | 3226 |
3233 // Record call targets in unoptimized code. | 3227 // Record call targets in unoptimized code. |
3234 if (FLAG_pretenuring_call_new) { | |
3235 UNREACHABLE(); | |
3236 /* TODO(dslomov): support pretenuring. | |
3237 EnsureSlotContainsAllocationSite(expr->AllocationSiteFeedbackSlot()); | |
3238 DCHECK(expr->AllocationSiteFeedbackSlot().ToInt() == | |
3239 expr->CallNewFeedbackSlot().ToInt() + 1); | |
3240 */ | |
3241 } | |
3242 | |
3243 __ li(a2, FeedbackVector()); | 3228 __ li(a2, FeedbackVector()); |
3244 __ li(a3, Operand(SmiFromSlot(expr->CallFeedbackSlot()))); | 3229 __ li(a3, Operand(SmiFromSlot(expr->CallFeedbackSlot()))); |
3245 | 3230 |
3246 CallConstructStub stub(isolate(), SUPER_CALL_RECORD_TARGET); | 3231 CallConstructStub stub(isolate(), SUPER_CALL_RECORD_TARGET); |
3247 __ Call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL); | 3232 __ Call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL); |
3248 | 3233 |
3249 RecordJSReturnSite(expr); | 3234 RecordJSReturnSite(expr); |
3250 | 3235 |
3251 // Restore context register. | 3236 // Restore context register. |
3252 __ ld(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); | 3237 __ ld(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
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5254 reinterpret_cast<uint64_t>( | 5239 reinterpret_cast<uint64_t>( |
5255 isolate->builtins()->OsrAfterStackCheck()->entry())); | 5240 isolate->builtins()->OsrAfterStackCheck()->entry())); |
5256 return OSR_AFTER_STACK_CHECK; | 5241 return OSR_AFTER_STACK_CHECK; |
5257 } | 5242 } |
5258 | 5243 |
5259 | 5244 |
5260 } // namespace internal | 5245 } // namespace internal |
5261 } // namespace v8 | 5246 } // namespace v8 |
5262 | 5247 |
5263 #endif // V8_TARGET_ARCH_MIPS64 | 5248 #endif // V8_TARGET_ARCH_MIPS64 |
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