mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-23 04:09:40 +00:00
96 lines
2.8 KiB
C++
96 lines
2.8 KiB
C++
/*
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* Copyright (C) 2012, 2014 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#if ENABLE(DFG_JIT)
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namespace JSC { namespace DFG {
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enum BranchDirection : uint8_t {
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// This is not a branch and so there is no branch direction, or
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// the branch direction has yet to be set.
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InvalidBranchDirection,
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// The branch takes the true case.
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TakeTrue,
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// The branch takes the false case.
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TakeFalse,
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// For all we know, the branch could go either direction, so we
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// have to assume the worst.
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TakeBoth
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};
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static inline const char* branchDirectionToString(BranchDirection branchDirection)
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{
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switch (branchDirection) {
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case InvalidBranchDirection:
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return "InvalidBranchDirection";
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case TakeTrue:
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return "TakeTrue";
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case TakeFalse:
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return "TakeFalse";
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case TakeBoth:
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return "TakeBoth";
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}
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RELEASE_ASSERT_NOT_REACHED();
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return "InvalidBranchDirection";
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}
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static inline bool isKnownDirection(BranchDirection branchDirection)
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{
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switch (branchDirection) {
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case TakeTrue:
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case TakeFalse:
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return true;
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default:
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return false;
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}
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}
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static inline bool branchCondition(BranchDirection branchDirection)
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{
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if (branchDirection == TakeTrue)
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return true;
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ASSERT(branchDirection == TakeFalse);
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return false;
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}
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} } // namespace JSC::DFG
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namespace WTF {
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inline void printInternal(PrintStream& out, JSC::DFG::BranchDirection direction)
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{
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out.print(JSC::DFG::branchDirectionToString(direction));
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}
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} // namespace WTF
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#endif // ENABLE(DFG_JIT)
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