mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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65 lines
2.1 KiB
C++
65 lines
2.1 KiB
C++
/*
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* Copyright (C) 2015 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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#include "config.h"
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#include "B3UseCounts.h"
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#if ENABLE(B3_JIT)
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#include "B3Procedure.h"
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#include "B3ValueInlines.h"
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namespace JSC { namespace B3 {
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UseCounts::UseCounts(Procedure& procedure)
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: m_counts(procedure.values().size())
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{
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Vector<Value*, 64> children;
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for (Value* value : procedure.values()) {
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children.shrink(0);
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for (Value* child : value->children()) {
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m_counts[child].numUses++;
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children.append(child);
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}
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std::sort(children.begin(), children.end());
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Value* last = nullptr;
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for (Value* child : children) {
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if (child == last)
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continue;
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m_counts[child].numUsingInstructions++;
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last = child;
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}
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}
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}
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UseCounts::~UseCounts()
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{
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}
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} } // namespace JSC::B3
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#endif // ENABLE(B3_JIT)
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