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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 // 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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4255 ASSERT_EQ(POINTER_SIZE_ALIGN(frame_offset), frame_offset); | 4255 ASSERT_EQ(POINTER_SIZE_ALIGN(frame_offset), frame_offset); |
4256 __ str(value, MemOperand(fp, frame_offset)); | 4256 __ str(value, MemOperand(fp, frame_offset)); |
4257 } | 4257 } |
4258 | 4258 |
4259 | 4259 |
4260 void FullCodeGenerator::LoadContextField(Register dst, int context_index) { | 4260 void FullCodeGenerator::LoadContextField(Register dst, int context_index) { |
4261 __ ldr(dst, ContextOperand(cp, context_index)); | 4261 __ ldr(dst, ContextOperand(cp, context_index)); |
4262 } | 4262 } |
4263 | 4263 |
4264 | 4264 |
| 4265 void FullCodeGenerator::PushFunctionArgumentForContextAllocation() { |
| 4266 if (scope()->is_global_scope()) { |
| 4267 // Contexts nested in the global context have a canonical empty function |
| 4268 // as their closure, not the anonymous closure containing the global |
| 4269 // code. Pass a smi sentinel and let the runtime look up the empty |
| 4270 // function. |
| 4271 __ mov(ip, Operand(Smi::FromInt(0))); |
| 4272 } else if (scope()->is_eval_scope()) { |
| 4273 // Contexts created by a call to eval have the same closure as the |
| 4274 // context calling eval, not the anonymous closure containing the eval |
| 4275 // code. Fetch it from the context. |
| 4276 __ ldr(ip, ContextOperand(cp, Context::CLOSURE_INDEX)); |
| 4277 } else { |
| 4278 ASSERT(scope()->is_function_scope()); |
| 4279 __ ldr(ip, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
| 4280 } |
| 4281 __ push(ip); |
| 4282 } |
| 4283 |
| 4284 |
4265 // ---------------------------------------------------------------------------- | 4285 // ---------------------------------------------------------------------------- |
4266 // Non-local control flow support. | 4286 // Non-local control flow support. |
4267 | 4287 |
4268 void FullCodeGenerator::EnterFinallyBlock() { | 4288 void FullCodeGenerator::EnterFinallyBlock() { |
4269 ASSERT(!result_register().is(r1)); | 4289 ASSERT(!result_register().is(r1)); |
4270 // Store result register while executing finally block. | 4290 // Store result register while executing finally block. |
4271 __ push(result_register()); | 4291 __ push(result_register()); |
4272 // Cook return address in link register to stack (smi encoded Code* delta) | 4292 // Cook return address in link register to stack (smi encoded Code* delta) |
4273 __ sub(r1, lr, Operand(masm_->CodeObject())); | 4293 __ sub(r1, lr, Operand(masm_->CodeObject())); |
4274 ASSERT_EQ(1, kSmiTagSize + kSmiShiftSize); | 4294 ASSERT_EQ(1, kSmiTagSize + kSmiShiftSize); |
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4288 __ mov(r1, Operand(r1, ASR, 1)); // Un-smi-tag value. | 4308 __ mov(r1, Operand(r1, ASR, 1)); // Un-smi-tag value. |
4289 __ add(pc, r1, Operand(masm_->CodeObject())); | 4309 __ add(pc, r1, Operand(masm_->CodeObject())); |
4290 } | 4310 } |
4291 | 4311 |
4292 | 4312 |
4293 #undef __ | 4313 #undef __ |
4294 | 4314 |
4295 } } // namespace v8::internal | 4315 } } // namespace v8::internal |
4296 | 4316 |
4297 #endif // V8_TARGET_ARCH_ARM | 4317 #endif // V8_TARGET_ARCH_ARM |
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