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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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| 3175 __ ldr(r1, MemOperand(sp, kNextOffset)); | 3175 __ ldr(r1, MemOperand(sp, kNextOffset)); |
| 3176 __ str(r1, MemOperand(r3)); | 3176 __ str(r1, MemOperand(r3)); |
| 3177 ASSERT(StackHandlerConstants::kCodeOffset == 0); // first field is code | 3177 ASSERT(StackHandlerConstants::kCodeOffset == 0); // first field is code |
| 3178 __ add(sp, sp, Operand(StackHandlerConstants::kSize - kPointerSize)); | 3178 __ add(sp, sp, Operand(StackHandlerConstants::kSize - kPointerSize)); |
| 3179 // Code slot popped. | 3179 // Code slot popped. |
| 3180 __ push(r0); | 3180 __ push(r0); |
| 3181 | 3181 |
| 3182 // --- Finally block --- | 3182 // --- Finally block --- |
| 3183 __ bind(&finally_block); | 3183 __ bind(&finally_block); |
| 3184 | 3184 |
| 3185 // We keep a single element on the stack - the (possibly faked) | 3185 // Push the state on the stack. |
| 3186 // result - while evaluating the finally block. Record it, so that a | 3186 __ push(r2); |
| 3187 // break/continue crossing this statement can restore the stack. | 3187 |
| 3188 const int kFinallyStackSize = 1 * kPointerSize; | 3188 // We keep two elements on the stack - the (possibly faked) result |
| 3189 // and the state - while evaluating the finally block. Record it, so |
| 3190 // that a break/continue crossing this statement can restore the |
| 3191 // stack. |
| 3192 const int kFinallyStackSize = 2 * kPointerSize; |
| 3189 break_stack_height_ += kFinallyStackSize; | 3193 break_stack_height_ += kFinallyStackSize; |
| 3190 | 3194 |
| 3191 // Push the state on the stack. If necessary move the state to a | |
| 3192 // local variable to avoid having extra values on the stack while | |
| 3193 // evaluating the finally block. | |
| 3194 __ push(r2); | |
| 3195 if (node->finally_var() != NULL) { | |
| 3196 Reference target(this, node->finally_var()); | |
| 3197 SetValue(&target); | |
| 3198 ASSERT(target.size() == 0); // no extra stuff on the stack | |
| 3199 __ pop(); // remove the extra avalue that was pushed above | |
| 3200 } | |
| 3201 | |
| 3202 // Generate code for the statements in the finally block. | 3195 // Generate code for the statements in the finally block. |
| 3203 VisitStatements(node->finally_block()->statements()); | 3196 VisitStatements(node->finally_block()->statements()); |
| 3204 | 3197 |
| 3205 // Get the state from the stack - or the local variable. | 3198 // Restore state and return value or faked TOS. |
| 3206 if (node->finally_var() != NULL) { | |
| 3207 Reference target(this, node->finally_var()); | |
| 3208 GetValue(&target); | |
| 3209 } | |
| 3210 __ pop(r2); | 3199 __ pop(r2); |
| 3211 | |
| 3212 // Restore return value or faked TOS. | |
| 3213 __ pop(r0); | 3200 __ pop(r0); |
| 3214 | |
| 3215 // Record the fact that the result has been removed from the stack. | |
| 3216 break_stack_height_ -= kFinallyStackSize; | 3201 break_stack_height_ -= kFinallyStackSize; |
| 3217 | 3202 |
| 3218 // Generate code that jumps to the right destination for all used | 3203 // Generate code that jumps to the right destination for all used |
| 3219 // shadow labels. | 3204 // shadow labels. |
| 3220 for (int i = 0; i <= nof_escapes; i++) { | 3205 for (int i = 0; i <= nof_escapes; i++) { |
| 3221 if (shadows[i]->is_bound()) { | 3206 if (shadows[i]->is_bound()) { |
| 3222 __ cmp(r2, Operand(Smi::FromInt(JUMPING + i))); | 3207 __ cmp(r2, Operand(Smi::FromInt(JUMPING + i))); |
| 3223 if (shadows[i]->shadowed() != &function_return_) { | 3208 if (shadows[i]->shadowed() != &function_return_) { |
| 3224 Label next; | 3209 Label next; |
| 3225 __ b(ne, &next); | 3210 __ b(ne, &next); |
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| 4542 bool is_eval) { | 4527 bool is_eval) { |
| 4543 Handle<Code> code = ArmCodeGenerator::MakeCode(fun, script, is_eval); | 4528 Handle<Code> code = ArmCodeGenerator::MakeCode(fun, script, is_eval); |
| 4544 if (!code.is_null()) { | 4529 if (!code.is_null()) { |
| 4545 Counters::total_compiled_code_size.Increment(code->instruction_size()); | 4530 Counters::total_compiled_code_size.Increment(code->instruction_size()); |
| 4546 } | 4531 } |
| 4547 return code; | 4532 return code; |
| 4548 } | 4533 } |
| 4549 | 4534 |
| 4550 | 4535 |
| 4551 } } // namespace v8::internal | 4536 } } // namespace v8::internal |
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