1 files changed, 0 insertions, 134 deletions
diff --git a/Source/JavaScriptCore/jit/SetupVarargsFrame.cpp b/Source/JavaScriptCore/jit/SetupVarargsFrame.cpp
deleted file mode 100644
index 9e133ccda..000000000
--- a/Source/JavaScriptCore/jit/SetupVarargsFrame.cpp
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * Copyright (C) 2015 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 "SetupVarargsFrame.h"
-
-#if ENABLE(JIT)
-
-#include "Interpreter.h"
-#include "JSCInlines.h"
-#include "StackAlignment.h"
-
-namespace JSC {
-
-void emitSetVarargsFrame(CCallHelpers& jit, GPRReg lengthGPR, bool lengthIncludesThis, GPRReg numUsedSlotsGPR, GPRReg resultGPR)
-{
-    jit.move(numUsedSlotsGPR, resultGPR);
-    jit.addPtr(lengthGPR, resultGPR);
-    jit.addPtr(CCallHelpers::TrustedImm32(JSStack::CallFrameHeaderSize + (lengthIncludesThis? 0 : 1)), resultGPR);
-    
-    // resultGPR now has the required frame size in Register units
-    // Round resultGPR to next multiple of stackAlignmentRegisters()
-    jit.addPtr(CCallHelpers::TrustedImm32(stackAlignmentRegisters() - 1), resultGPR);
-    jit.andPtr(CCallHelpers::TrustedImm32(~(stackAlignmentRegisters() - 1)), resultGPR);
-    
-    // Now resultGPR has the right stack frame offset in Register units.
-    jit.negPtr(resultGPR);
-    jit.lshiftPtr(CCallHelpers::Imm32(3), resultGPR);
-    jit.addPtr(GPRInfo::callFrameRegister, resultGPR);
-}
-
-void emitSetupVarargsFrameFastCase(CCallHelpers& jit, GPRReg numUsedSlotsGPR, GPRReg scratchGPR1, GPRReg scratchGPR2, GPRReg scratchGPR3, ValueRecovery argCountRecovery, VirtualRegister firstArgumentReg, unsigned firstVarArgOffset, CCallHelpers::JumpList& slowCase)
-{
-    CCallHelpers::JumpList end;
-    
-    if (argCountRecovery.isConstant()) {
-        // FIXME: We could constant-fold a lot of the computation below in this case.
-        // https://bugs.webkit.org/show_bug.cgi?id=141486
-        jit.move(CCallHelpers::TrustedImm32(argCountRecovery.constant().asInt32()), scratchGPR1);
-    } else
-        jit.load32(CCallHelpers::payloadFor(argCountRecovery.virtualRegister()), scratchGPR1);
-    if (firstVarArgOffset) {
-        CCallHelpers::Jump sufficientArguments = jit.branch32(CCallHelpers::GreaterThan, scratchGPR1, CCallHelpers::TrustedImm32(firstVarArgOffset + 1));
-        jit.move(CCallHelpers::TrustedImm32(1), scratchGPR1);
-        CCallHelpers::Jump endVarArgs = jit.jump();
-        sufficientArguments.link(&jit);
-        jit.sub32(CCallHelpers::TrustedImm32(firstVarArgOffset), scratchGPR1);
-        endVarArgs.link(&jit);
-    }
-    slowCase.append(jit.branch32(CCallHelpers::Above, scratchGPR1, CCallHelpers::TrustedImm32(maxArguments + 1)));
-    
-    emitSetVarargsFrame(jit, scratchGPR1, true, numUsedSlotsGPR, scratchGPR2);
-
-    slowCase.append(jit.branchPtr(CCallHelpers::Above, CCallHelpers::AbsoluteAddress(jit.vm()->addressOfStackLimit()), scratchGPR2));
-
-    // Initialize ArgumentCount.
-    jit.store32(scratchGPR1, CCallHelpers::Address(scratchGPR2, JSStack::ArgumentCount * static_cast<int>(sizeof(Register)) + PayloadOffset));
-
-    // Copy arguments.
-    jit.signExtend32ToPtr(scratchGPR1, scratchGPR1);
-    CCallHelpers::Jump done = jit.branchSubPtr(CCallHelpers::Zero, CCallHelpers::TrustedImm32(1), scratchGPR1);
-    // scratchGPR1: argumentCount
-
-    CCallHelpers::Label copyLoop = jit.label();
-    int argOffset = (firstArgumentReg.offset() - 1 + firstVarArgOffset) * static_cast<int>(sizeof(Register));
-#if USE(JSVALUE64)
-    jit.load64(CCallHelpers::BaseIndex(GPRInfo::callFrameRegister, scratchGPR1, CCallHelpers::TimesEight, argOffset), scratchGPR3);
-    jit.store64(scratchGPR3, CCallHelpers::BaseIndex(scratchGPR2, scratchGPR1, CCallHelpers::TimesEight, CallFrame::thisArgumentOffset() * static_cast<int>(sizeof(Register))));
-#else // USE(JSVALUE64), so this begins the 32-bit case
-    jit.load32(CCallHelpers::BaseIndex(GPRInfo::callFrameRegister, scratchGPR1, CCallHelpers::TimesEight, argOffset + TagOffset), scratchGPR3);
-    jit.store32(scratchGPR3, CCallHelpers::BaseIndex(scratchGPR2, scratchGPR1, CCallHelpers::TimesEight, CallFrame::thisArgumentOffset() * static_cast<int>(sizeof(Register)) + TagOffset));
-    jit.load32(CCallHelpers::BaseIndex(GPRInfo::callFrameRegister, scratchGPR1, CCallHelpers::TimesEight, argOffset + PayloadOffset), scratchGPR3);
-    jit.store32(scratchGPR3, CCallHelpers::BaseIndex(scratchGPR2, scratchGPR1, CCallHelpers::TimesEight, CallFrame::thisArgumentOffset() * static_cast<int>(sizeof(Register)) + PayloadOffset));
-#endif // USE(JSVALUE64), end of 32-bit case
-    jit.branchSubPtr(CCallHelpers::NonZero, CCallHelpers::TrustedImm32(1), scratchGPR1).linkTo(copyLoop, &jit);
-    
-    done.link(&jit);
-}
-
-void emitSetupVarargsFrameFastCase(CCallHelpers& jit, GPRReg numUsedSlotsGPR, GPRReg scratchGPR1, GPRReg scratchGPR2, GPRReg scratchGPR3, unsigned firstVarArgOffset, CCallHelpers::JumpList& slowCase)
-{
-    emitSetupVarargsFrameFastCase(jit, numUsedSlotsGPR, scratchGPR1, scratchGPR2, scratchGPR3, nullptr, firstVarArgOffset, slowCase);
-}
-
-void emitSetupVarargsFrameFastCase(CCallHelpers& jit, GPRReg numUsedSlotsGPR, GPRReg scratchGPR1, GPRReg scratchGPR2, GPRReg scratchGPR3, InlineCallFrame* inlineCallFrame, unsigned firstVarArgOffset, CCallHelpers::JumpList& slowCase)
-{
-    ValueRecovery argumentCountRecovery;
-    VirtualRegister firstArgumentReg;
-    if (inlineCallFrame) {
-        if (inlineCallFrame->isVarargs()) {
-            argumentCountRecovery = ValueRecovery::displacedInJSStack(
-                inlineCallFrame->argumentCountRegister, DataFormatInt32);
-        } else {
-            argumentCountRecovery = ValueRecovery::constant(
-                jsNumber(inlineCallFrame->arguments.size()));
-        }
-        if (inlineCallFrame->arguments.size() > 1)
-            firstArgumentReg = inlineCallFrame->arguments[1].virtualRegister();
-        else
-            firstArgumentReg = VirtualRegister(0);
-    } else {
-        argumentCountRecovery = ValueRecovery::displacedInJSStack(
-            VirtualRegister(JSStack::ArgumentCount), DataFormatInt32);
-        firstArgumentReg = VirtualRegister(CallFrame::argumentOffset(0));
-    }
-    emitSetupVarargsFrameFastCase(jit, numUsedSlotsGPR, scratchGPR1, scratchGPR2, scratchGPR3, argumentCountRecovery, firstArgumentReg, firstVarArgOffset, slowCase);
-}
-
-} // namespace JSC
-
-#endif // ENABLE(JIT)
-