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| 1 // Copyright 2009 the V8 project authors. All rights reserved. | |
| 2 // Redistribution and use in source and binary forms, with or without | |
| 3 // modification, are permitted provided that the following conditions are | |
| 4 // met: | |
| 5 // | |
| 6 // * Redistributions of source code must retain the above copyright | |
| 7 // notice, this list of conditions and the following disclaimer. | |
| 8 // * Redistributions in binary form must reproduce the above | |
| 9 // copyright notice, this list of conditions and the following | |
| 10 // disclaimer in the documentation and/or other materials provided | |
| 11 // with the distribution. | |
| 12 // * Neither the name of Google Inc. nor the names of its | |
| 13 // contributors may be used to endorse or promote products derived | |
| 14 // from this software without specific prior written permission. | |
| 15 // | |
| 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 27 | |
| 28 #include "v8.h" | |
| 29 | |
| 30 #include "codegen-inl.h" | |
| 31 #include "jump-target-inl.h" | |
| 32 #include "register-allocator-inl.h" | |
| 33 | |
| 34 namespace v8 { | |
| 35 namespace internal { | |
| 36 | |
| 37 // ------------------------------------------------------------------------- | |
| 38 // JumpTarget implementation. | |
| 39 | |
| 40 void JumpTarget::Jump() { | |
| 41 DoJump(); | |
| 42 } | |
| 43 | |
| 44 | |
| 45 void JumpTarget::Branch(Condition cc, Hint hint) { | |
| 46 DoBranch(cc, hint); | |
| 47 } | |
| 48 | |
| 49 | |
| 50 void JumpTarget::Bind() { | |
| 51 DoBind(); | |
| 52 } | |
| 53 | |
| 54 | |
| 55 // ------------------------------------------------------------------------- | |
| 56 // ShadowTarget implementation. | |
| 57 | |
| 58 ShadowTarget::ShadowTarget(BreakTarget* shadowed) { | |
| 59 ASSERT(shadowed != NULL); | |
| 60 other_target_ = shadowed; | |
| 61 | |
| 62 #ifdef DEBUG | |
| 63 is_shadowing_ = true; | |
| 64 #endif | |
| 65 // While shadowing this shadow target saves the state of the original. | |
| 66 shadowed->CopyTo(this); | |
| 67 | |
| 68 // The original's state is reset. | |
| 69 shadowed->Unuse(); | |
| 70 ASSERT(cgen()->has_valid_frame()); | |
| 71 shadowed->set_expected_height(cgen()->frame()->height()); | |
| 72 } | |
| 73 | |
| 74 | |
| 75 void ShadowTarget::StopShadowing() { | |
| 76 ASSERT(is_shadowing_); | |
| 77 | |
| 78 // The states of this target, which was shadowed, and the original | |
| 79 // target, which was shadowing, are swapped. | |
| 80 BreakTarget temp; | |
| 81 other_target_->CopyTo(&temp); | |
| 82 CopyTo(other_target_); | |
| 83 temp.CopyTo(this); | |
| 84 temp.Unuse(); | |
| 85 | |
| 86 #ifdef DEBUG | |
| 87 is_shadowing_ = false; | |
| 88 #endif | |
| 89 } | |
| 90 | |
| 91 } } // namespace v8::internal | |
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Chromium Code Reviews
Issue 6811012:
Remove some dead code. (Closed)
Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge