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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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3759 // Record the source position of the statement as this code which | 3759 // Record the source position of the statement as this code which |
3760 // is after the code for the body actually belongs to the loop | 3760 // is after the code for the body actually belongs to the loop |
3761 // statement and not the body. | 3761 // statement and not the body. |
3762 CodeForStatementPosition(node); | 3762 CodeForStatementPosition(node); |
3763 Visit(node->next()); | 3763 Visit(node->next()); |
3764 } | 3764 } |
3765 } | 3765 } |
3766 | 3766 |
3767 // Set the type of the loop variable to smi before compiling the test | 3767 // Set the type of the loop variable to smi before compiling the test |
3768 // expression if we are in a fast smi loop condition. | 3768 // expression if we are in a fast smi loop condition. |
3769 if (node->is_fast_smi_loop()) { | 3769 if (node->is_fast_smi_loop() && has_valid_frame()) { |
3770 // Set number type of the loop variable to smi. | 3770 // Set number type of the loop variable to smi. |
3771 Slot* slot = node->loop_variable()->slot(); | 3771 Slot* slot = node->loop_variable()->slot(); |
3772 ASSERT(slot->type() == Slot::LOCAL); | 3772 ASSERT(slot->type() == Slot::LOCAL); |
3773 frame_->SetTypeForLocalAt(slot->index(), NumberInfo::Smi()); | 3773 frame_->SetTypeForLocalAt(slot->index(), NumberInfo::Smi()); |
3774 if (FLAG_debug_code) { | 3774 if (FLAG_debug_code) { |
3775 frame_->PushLocalAt(slot->index()); | 3775 frame_->PushLocalAt(slot->index()); |
3776 Result var = frame_->Pop(); | 3776 Result var = frame_->Pop(); |
3777 var.ToRegister(); | 3777 var.ToRegister(); |
3778 __ AbortIfNotSmi(var.reg(), "Loop variable not a smi."); | 3778 __ AbortIfNotSmi(var.reg(), "Loop variable not a smi."); |
3779 } | 3779 } |
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12248 | 12248 |
12249 // Call the runtime; it returns -1 (less), 0 (equal), or 1 (greater) | 12249 // Call the runtime; it returns -1 (less), 0 (equal), or 1 (greater) |
12250 // tagged as a small integer. | 12250 // tagged as a small integer. |
12251 __ bind(&runtime); | 12251 __ bind(&runtime); |
12252 __ TailCallRuntime(Runtime::kStringCompare, 2, 1); | 12252 __ TailCallRuntime(Runtime::kStringCompare, 2, 1); |
12253 } | 12253 } |
12254 | 12254 |
12255 #undef __ | 12255 #undef __ |
12256 | 12256 |
12257 } } // namespace v8::internal | 12257 } } // namespace v8::internal |
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