webkitgtk-2.4.11webkitgtk-2.4.11

1 files changed, 0 insertions, 149 deletions

diff --git a/Source/JavaScriptCore/ftl/FTLSaveRestore.cpp b/Source/JavaScriptCore/ftl/FTLSaveRestore.cpp
deleted file mode 100644
index c752fd22f..000000000
--- a/Source/JavaScriptCore/ftl/FTLSaveRestore.cpp
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * Copyright (C) 2013, 2014 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 "FTLSaveRestore.h"
-
-#if ENABLE(FTL_JIT)
-
-#include "FPRInfo.h"
-#include "GPRInfo.h"
-#include "MacroAssembler.h"
-#include "RegisterSet.h"
-
-namespace JSC { namespace FTL {
-
-static size_t bytesForGPRs()
-{
-    return MacroAssembler::numberOfRegisters() * sizeof(int64_t);
-}
-
-static size_t bytesForFPRs()
-{
-    // FIXME: It might be worthwhile saving the full state of the FP registers, at some point.
-    // Right now we don't need this since we only do the save/restore just prior to OSR exit, and
-    // OSR exit will be guaranteed to only need the double portion of the FP registers.
-    return MacroAssembler::numberOfFPRegisters() * sizeof(double);
-}
-
-size_t requiredScratchMemorySizeInBytes()
-{
-    return bytesForGPRs() + bytesForFPRs();
-}
-
-size_t offsetOfGPR(GPRReg reg)
-{
-    return MacroAssembler::registerIndex(reg) * sizeof(int64_t);
-}
-
-size_t offsetOfFPR(FPRReg reg)
-{
-    return bytesForGPRs() + MacroAssembler::fpRegisterIndex(reg) * sizeof(double);
-}
-
-size_t offsetOfReg(Reg reg)
-{
-    if (reg.isGPR())
-        return offsetOfGPR(reg.gpr());
-    return offsetOfFPR(reg.fpr());
-}
-
-namespace {
-
-struct Regs {
-    Regs()
-    {
-        special = RegisterSet::stackRegisters();
-        special.merge(RegisterSet::reservedHardwareRegisters());
-        
-        first = MacroAssembler::firstRegister();
-        while (special.get(first))
-            first = MacroAssembler::nextRegister(first);
-        second = MacroAssembler::nextRegister(first);
-        while (special.get(second))
-            second = MacroAssembler::nextRegister(second);
-    }
-    
-    RegisterSet special;
-    GPRReg first;
-    GPRReg second;
-};
-
-} // anonymous namespace
-
-void saveAllRegisters(MacroAssembler& jit, char* scratchMemory)
-{
-    Regs regs;
-    
-    // Get the first register out of the way, so that we can use it as a pointer.
-    jit.poke64(regs.first, 0);
-    jit.move(MacroAssembler::TrustedImmPtr(scratchMemory), regs.first);
-    
-    // Get all of the other GPRs out of the way.
-    for (MacroAssembler::RegisterID reg = regs.second; reg <= MacroAssembler::lastRegister(); reg = MacroAssembler::nextRegister(reg)) {
-        if (regs.special.get(reg))
-            continue;
-        jit.store64(reg, MacroAssembler::Address(regs.first, offsetOfGPR(reg)));
-    }
-    
-    // Restore the first register into the second one and save it.
-    jit.peek64(regs.second, 0);
-    jit.store64(regs.second, MacroAssembler::Address(regs.first, offsetOfGPR(regs.first)));
-    
-    // Finally save all FPR's.
-    for (MacroAssembler::FPRegisterID reg = MacroAssembler::firstFPRegister(); reg <= MacroAssembler::lastFPRegister(); reg = MacroAssembler::nextFPRegister(reg)) {
-        if (regs.special.get(reg))
-            continue;
-        jit.storeDouble(reg, MacroAssembler::Address(regs.first, offsetOfFPR(reg)));
-    }
-}
-
-void restoreAllRegisters(MacroAssembler& jit, char* scratchMemory)
-{
-    Regs regs;
-    
-    // Give ourselves a pointer to the scratch memory.
-    jit.move(MacroAssembler::TrustedImmPtr(scratchMemory), regs.first);
-    
-    // Restore all FPR's.
-    for (MacroAssembler::FPRegisterID reg = MacroAssembler::firstFPRegister(); reg <= MacroAssembler::lastFPRegister(); reg = MacroAssembler::nextFPRegister(reg)) {
-        if (regs.special.get(reg))
-            continue;
-        jit.loadDouble(MacroAssembler::Address(regs.first, offsetOfFPR(reg)), reg);
-    }
-    
-    for (MacroAssembler::RegisterID reg = regs.second; reg <= MacroAssembler::lastRegister(); reg = MacroAssembler::nextRegister(reg)) {
-        if (regs.special.get(reg))
-            continue;
-        jit.load64(MacroAssembler::Address(regs.first, offsetOfGPR(reg)), reg);
-    }
-    
-    jit.load64(MacroAssembler::Address(regs.first, offsetOfGPR(regs.first)), regs.first);
-}
-
-} } // namespace JSC::FTL
-
-#endif // ENABLE(FTL_JIT)
-