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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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147 Result answer = frame_->CallStub(&stub, 3); | 147 Result answer = frame_->CallStub(&stub, 3); |
148 frame_->Push(&answer); | 148 frame_->Push(&answer); |
149 } | 149 } |
150 | 150 |
151 if (scope_->num_heap_slots() > 0) { | 151 if (scope_->num_heap_slots() > 0) { |
152 Comment cmnt(masm_, "[ allocate local context"); | 152 Comment cmnt(masm_, "[ allocate local context"); |
153 // Allocate local context. | 153 // Allocate local context. |
154 // Get outer context and create a new context based on it. | 154 // Get outer context and create a new context based on it. |
155 frame_->PushFunction(); | 155 frame_->PushFunction(); |
156 Result context = frame_->CallRuntime(Runtime::kNewContext, 1); | 156 Result context = frame_->CallRuntime(Runtime::kNewContext, 1); |
| 157 |
157 // Update context local. | 158 // Update context local. |
158 frame_->SaveContextRegister(); | 159 frame_->SaveContextRegister(); |
159 | 160 |
160 if (kDebug) { | 161 // Verify that the runtime call result and esi agree. |
161 JumpTarget verified_true(this); | 162 if (FLAG_debug_code) { |
162 // Verify eax and esi are the same in debug mode | |
163 __ cmp(context.reg(), Operand(esi)); | 163 __ cmp(context.reg(), Operand(esi)); |
164 context.Unuse(); | 164 __ Assert(equal, "Runtime::NewContext should end up in esi"); |
165 verified_true.Branch(equal); | |
166 frame_->SpillAll(); | |
167 __ int3(); | |
168 verified_true.Bind(); | |
169 } | 165 } |
170 } | 166 } |
171 | 167 |
172 // TODO(1241774): Improve this code: | 168 // TODO(1241774): Improve this code: |
173 // 1) only needed if we have a context | 169 // 1) only needed if we have a context |
174 // 2) no need to recompute context ptr every single time | 170 // 2) no need to recompute context ptr every single time |
175 // 3) don't copy parameter operand code from SlotOperand! | 171 // 3) don't copy parameter operand code from SlotOperand! |
176 { | 172 { |
177 Comment cmnt2(masm_, "[ copy context parameters into .context"); | 173 Comment cmnt2(masm_, "[ copy context parameters into .context"); |
178 | 174 |
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1863 Result context(this); | 1859 Result context(this); |
1864 if (node->is_catch_block()) { | 1860 if (node->is_catch_block()) { |
1865 context = frame_->CallRuntime(Runtime::kPushCatchContext, 1); | 1861 context = frame_->CallRuntime(Runtime::kPushCatchContext, 1); |
1866 } else { | 1862 } else { |
1867 context = frame_->CallRuntime(Runtime::kPushContext, 1); | 1863 context = frame_->CallRuntime(Runtime::kPushContext, 1); |
1868 } | 1864 } |
1869 | 1865 |
1870 // Update context local. | 1866 // Update context local. |
1871 frame_->SaveContextRegister(); | 1867 frame_->SaveContextRegister(); |
1872 | 1868 |
1873 if (kDebug) { | 1869 // Verify that the runtime call result and esi agree. |
1874 JumpTarget verified_true(this); | 1870 if (FLAG_debug_code) { |
1875 // Verify that the result of the runtime call and the esi register are | |
1876 // the same in debug mode. | |
1877 __ cmp(context.reg(), Operand(esi)); | 1871 __ cmp(context.reg(), Operand(esi)); |
1878 context.Unuse(); | 1872 __ Assert(equal, "Runtime::NewContext should end up in esi"); |
1879 verified_true.Branch(equal); | |
1880 frame_->SpillAll(); | |
1881 __ int3(); | |
1882 verified_true.Bind(); | |
1883 } | 1873 } |
1884 } | 1874 } |
1885 | 1875 |
1886 | 1876 |
1887 void CodeGenerator::VisitWithExitStatement(WithExitStatement* node) { | 1877 void CodeGenerator::VisitWithExitStatement(WithExitStatement* node) { |
1888 ASSERT(!in_spilled_code()); | 1878 ASSERT(!in_spilled_code()); |
1889 Comment cmnt(masm_, "[ WithExitStatement"); | 1879 Comment cmnt(masm_, "[ WithExitStatement"); |
1890 CodeForStatementPosition(node); | 1880 CodeForStatementPosition(node); |
1891 // Pop context. | 1881 // Pop context. |
1892 __ mov(esi, ContextOperand(esi, Context::PREVIOUS_INDEX)); | 1882 __ mov(esi, ContextOperand(esi, Context::PREVIOUS_INDEX)); |
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6823 | 6813 |
6824 // Slow-case: Go through the JavaScript implementation. | 6814 // Slow-case: Go through the JavaScript implementation. |
6825 __ bind(&slow); | 6815 __ bind(&slow); |
6826 __ InvokeBuiltin(Builtins::INSTANCE_OF, JUMP_FUNCTION); | 6816 __ InvokeBuiltin(Builtins::INSTANCE_OF, JUMP_FUNCTION); |
6827 } | 6817 } |
6828 | 6818 |
6829 | 6819 |
6830 #undef __ | 6820 #undef __ |
6831 | 6821 |
6832 } } // namespace v8::internal | 6822 } } // namespace v8::internal |
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