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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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/codegen.h" | 5 #include "src/codegen.h" |
6 #include "src/deoptimizer.h" | 6 #include "src/deoptimizer.h" |
7 #include "src/full-codegen/full-codegen.h" | 7 #include "src/full-codegen/full-codegen.h" |
8 #include "src/register-configuration.h" | 8 #include "src/register-configuration.h" |
9 #include "src/safepoint-table.h" | 9 #include "src/safepoint-table.h" |
10 | 10 |
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147 // Get the address of the location in the code object (a3) (return | 147 // Get the address of the location in the code object (a3) (return |
148 // address for lazy deoptimization) and compute the fp-to-sp delta in | 148 // address for lazy deoptimization) and compute the fp-to-sp delta in |
149 // register t0. | 149 // register t0. |
150 __ mov(a3, ra); | 150 __ mov(a3, ra); |
151 // Correct one word for bailout id. | 151 // Correct one word for bailout id. |
152 __ Addu(t0, sp, Operand(kSavedRegistersAreaSize + (1 * kPointerSize))); | 152 __ Addu(t0, sp, Operand(kSavedRegistersAreaSize + (1 * kPointerSize))); |
153 | 153 |
154 __ Subu(t0, fp, t0); | 154 __ Subu(t0, fp, t0); |
155 | 155 |
156 // Allocate a new deoptimizer object. | 156 // Allocate a new deoptimizer object. |
| 157 __ PrepareCallCFunction(6, t1); |
157 // Pass four arguments in a0 to a3 and fifth & sixth arguments on stack. | 158 // Pass four arguments in a0 to a3 and fifth & sixth arguments on stack. |
158 __ PrepareCallCFunction(6, t1); | 159 __ mov(a0, zero_reg); |
| 160 Label context_check; |
| 161 __ lw(a1, MemOperand(fp, CommonFrameConstants::kContextOrFrameTypeOffset)); |
| 162 __ JumpIfSmi(a1, &context_check); |
159 __ lw(a0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); | 163 __ lw(a0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
160 __ li(a1, Operand(type())); // bailout type, | 164 __ bind(&context_check); |
| 165 __ li(a1, Operand(type())); // Bailout type. |
161 // a2: bailout id already loaded. | 166 // a2: bailout id already loaded. |
162 // a3: code address or 0 already loaded. | 167 // a3: code address or 0 already loaded. |
163 __ sw(t0, CFunctionArgumentOperand(5)); // Fp-to-sp delta. | 168 __ sw(t0, CFunctionArgumentOperand(5)); // Fp-to-sp delta. |
164 __ li(t1, Operand(ExternalReference::isolate_address(isolate()))); | 169 __ li(t1, Operand(ExternalReference::isolate_address(isolate()))); |
165 __ sw(t1, CFunctionArgumentOperand(6)); // Isolate. | 170 __ sw(t1, CFunctionArgumentOperand(6)); // Isolate. |
166 // Call Deoptimizer::New(). | 171 // Call Deoptimizer::New(). |
167 { | 172 { |
168 AllowExternalCallThatCantCauseGC scope(masm()); | 173 AllowExternalCallThatCantCauseGC scope(masm()); |
169 __ CallCFunction(ExternalReference::new_deoptimizer_function(isolate()), 6); | 174 __ CallCFunction(ExternalReference::new_deoptimizer_function(isolate()), 6); |
170 } | 175 } |
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376 // No embedded constant pool support. | 381 // No embedded constant pool support. |
377 UNREACHABLE(); | 382 UNREACHABLE(); |
378 } | 383 } |
379 | 384 |
380 | 385 |
381 #undef __ | 386 #undef __ |
382 | 387 |
383 | 388 |
384 } // namespace internal | 389 } // namespace internal |
385 } // namespace v8 | 390 } // namespace v8 |
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