webkitgtk-2.4.11webkitgtk-2.4.11

1 files changed, 0 insertions, 192 deletions

diff --git a/Source/JavaScriptCore/b3/B3LowerMacrosAfterOptimizations.cpp b/Source/JavaScriptCore/b3/B3LowerMacrosAfterOptimizations.cpp
deleted file mode 100644
index 96e741e61..000000000
--- a/Source/JavaScriptCore/b3/B3LowerMacrosAfterOptimizations.cpp
+++ /dev/null
@@ -1,192 +0,0 @@
-/*
- * Copyright (C) 2015-2016 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
- */
-
-#include "config.h"
-#include "B3LowerMacrosAfterOptimizations.h"
-
-#if ENABLE(B3_JIT)
-
-#include "B3BasicBlockInlines.h"
-#include "B3BlockInsertionSet.h"
-#include "B3CCallValue.h"
-#include "B3ConstDoubleValue.h"
-#include "B3ConstFloatValue.h"
-#include "B3ConstPtrValue.h"
-#include "B3InsertionSetInlines.h"
-#include "B3PhaseScope.h"
-
-namespace JSC { namespace B3 {
-
-namespace {
-
-class LowerMacros {
-public:
-    LowerMacros(Procedure& proc)
-        : m_proc(proc)
-        , m_blockInsertionSet(proc)
-        , m_insertionSet(proc)
-    {
-    }
-
-    bool run()
-    {
-        for (BasicBlock* block : m_proc) {
-            m_block = block;
-            processCurrentBlock();
-        }
-        m_changed |= m_blockInsertionSet.execute();
-        if (m_changed) {
-            m_proc.resetReachability();
-            m_proc.invalidateCFG();
-        }
-        return m_changed;
-    }
-    
-private:
-    void processCurrentBlock()
-    {
-        for (m_index = 0; m_index < m_block->size(); ++m_index) {
-            m_value = m_block->at(m_index);
-            m_origin = m_value->origin();
-            switch (m_value->opcode()) {
-            case Abs: {
-                // ARM supports this instruction natively.
-                if (isARM64())
-                    break;
-
-                Value* mask = nullptr;
-                if (m_value->type() == Double)
-                    mask = m_insertionSet.insert<ConstDoubleValue>(m_index, m_origin, bitwise_cast<double>(~(1ll << 63)));
-                else if (m_value->type() == Float)
-                    mask = m_insertionSet.insert<ConstFloatValue>(m_index, m_origin, bitwise_cast<float>(~(1 << 31)));
-                else
-                    RELEASE_ASSERT_NOT_REACHED();
-                Value* result = m_insertionSet.insert<Value>(m_index, BitAnd, m_origin, m_value->child(0), mask);
-                m_value->replaceWithIdentity(result);
-                break;
-            }
-            case Ceil: {
-                if (MacroAssembler::supportsFloatingPointRounding())
-                    break;
-
-                Value* functionAddress = nullptr;
-                if (m_value->type() == Double) {
-                    double (*ceilDouble)(double) = ceil;
-                    functionAddress = m_insertionSet.insert<ConstPtrValue>(m_index, m_origin, ceilDouble);
-                } else if (m_value->type() == Float)
-                    functionAddress = m_insertionSet.insert<ConstPtrValue>(m_index, m_origin, ceilf);
-                else
-                    RELEASE_ASSERT_NOT_REACHED();
-
-                Value* result = m_insertionSet.insert<CCallValue>(m_index,
-                    m_value->type(),
-                    m_origin,
-                    Effects::none(),
-                    functionAddress,
-                    m_value->child(0));
-                m_value->replaceWithIdentity(result);
-                break;
-            }
-            case Floor: {
-                if (MacroAssembler::supportsFloatingPointRounding())
-                    break;
-
-                Value* functionAddress = nullptr;
-                if (m_value->type() == Double) {
-                    double (*floorDouble)(double) = floor;
-                    functionAddress = m_insertionSet.insert<ConstPtrValue>(m_index, m_origin, floorDouble);
-                } else if (m_value->type() == Float)
-                    functionAddress = m_insertionSet.insert<ConstPtrValue>(m_index, m_origin, floorf);
-                else
-                    RELEASE_ASSERT_NOT_REACHED();
-
-                Value* result = m_insertionSet.insert<CCallValue>(m_index,
-                    m_value->type(),
-                    m_origin,
-                    Effects::none(),
-                    functionAddress,
-                    m_value->child(0));
-                m_value->replaceWithIdentity(result);
-                break;
-            }
-            case Neg: {
-                if (!isFloat(m_value->type()))
-                    break;
-                
-                // X86 is odd in that it requires this.
-                if (!isX86())
-                    break;
-
-                Value* mask = nullptr;
-                if (m_value->type() == Double)
-                    mask = m_insertionSet.insert<ConstDoubleValue>(m_index, m_origin, -0.0);
-                else {
-                    RELEASE_ASSERT(m_value->type() == Float);
-                    mask = m_insertionSet.insert<ConstFloatValue>(m_index, m_origin, -0.0f);
-                }
-
-                Value* result = m_insertionSet.insert<Value>(
-                    m_index, BitXor, m_origin, m_value->child(0), mask);
-                m_value->replaceWithIdentity(result);
-                break;
-            }
-            default:
-                break;
-            }
-        }
-        m_insertionSet.execute(m_block);
-    }
-    
-    Procedure& m_proc;
-    BlockInsertionSet m_blockInsertionSet;
-    InsertionSet m_insertionSet;
-    BasicBlock* m_block;
-    unsigned m_index;
-    Value* m_value;
-    Origin m_origin;
-    bool m_changed { false };
-};
-
-bool lowerMacrosImpl(Procedure& proc)
-{
-    LowerMacros lowerMacros(proc);
-    return lowerMacros.run();
-}
-
-} // anonymous namespace
-
-bool lowerMacrosAfterOptimizations(Procedure& proc)
-{
-    PhaseScope phaseScope(proc, "lowerMacrosAfterOptimizations");
-    bool result = lowerMacrosImpl(proc);
-    if (shouldValidateIR())
-        RELEASE_ASSERT(!lowerMacrosImpl(proc));
-    return result;
-}
-
-} } // namespace JSC::B3
-
-#endif // ENABLE(B3_JIT)
-