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/*
* Copyright (C) 2013-2023 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.
*/
#pragma once
#if ENABLE(JIT)
#include "GPRInfo.h"
#include "JITOperations.h"
namespace JSC {
namespace BaselineJITRegisters {
namespace Call {
static constexpr JSValueRegs calleeJSR { JSRInfo::jsRegT10 };
static constexpr GPRReg calleeGPR { GPRInfo::regT0 };
static constexpr GPRReg callLinkInfoGPR { GPRInfo::regT2 };
static constexpr GPRReg callTargetGPR { GPRInfo::regT5 };
}
namespace CallDirectEval {
namespace SlowPath {
static constexpr GPRReg calleeFrameGPR { GPRInfo::regT0 };
#if USE(JSVALUE64)
static constexpr GPRReg scopeGPR { GPRInfo::regT1 };
static constexpr JSValueRegs thisValueJSR { GPRInfo::regT2 };
#else
static constexpr GPRReg scopeGPR { GPRInfo::regT1 };
static constexpr JSValueRegs thisValueJSR { JSRInfo::jsRegT32 };
#endif
}
}
namespace CheckTraps {
static constexpr GPRReg bytecodeOffsetGPR { GPRInfo::nonArgGPR0 };
}
namespace Enter {
static constexpr GPRReg scratch1GPR { GPRInfo::regT4 };
static constexpr GPRReg scratch2GPR { GPRInfo::regT5 };
static constexpr JSValueRegs scratch3JSR { JSRInfo::jsRegT32 };
}
namespace Instanceof {
using SlowOperation = decltype(operationInstanceOfOptimize);
// Registers used on both Fast and Slow paths
static constexpr JSValueRegs resultJSR { JSRInfo::returnValueJSR };
static constexpr JSValueRegs valueJSR { preferredArgumentJSR<SlowOperation, 0>() };
static constexpr JSValueRegs protoJSR { preferredArgumentJSR<SlowOperation, 1>() };
static constexpr GPRReg stubInfoGPR { preferredArgumentGPR<SlowOperation, 2>() };
static constexpr auto scratchRegisters = allocatedScratchRegisters<GPRInfo, valueJSR, protoJSR, stubInfoGPR, GPRInfo::handlerGPR>;
static constexpr GPRReg scratch1GPR { scratchRegisters[0] };
static_assert(noOverlap(stubInfoGPR, valueJSR, protoJSR, GPRInfo::handlerGPR, scratch1GPR), "Required for call to slow operation");
static_assert(noOverlap(resultJSR, stubInfoGPR));
namespace Custom {
static constexpr GPRReg globalObjectGPR = stubInfoGPR;
static constexpr JSValueRegs valueJSR = Instanceof::valueJSR;
static constexpr GPRReg constructorGPR = scratch1GPR;
static constexpr JSValueRegs hasInstanceJSR = protoJSR;
}
}
namespace JFalse {
static constexpr JSValueRegs valueJSR { JSRInfo::jsRegT32 };
static constexpr GPRReg scratch1GPR { GPRInfo::regT5 };
static_assert(noOverlap(valueJSR, scratch1GPR));
}
namespace JTrue {
static constexpr JSValueRegs valueJSR { JSRInfo::jsRegT32 };
static constexpr GPRReg scratch1GPR { GPRInfo::regT5 };
static_assert(noOverlap(valueJSR, scratch1GPR));
}
namespace Throw {
using SlowOperation = decltype(operationThrow);
static constexpr GPRReg globalObjectGPR { preferredArgumentGPR<SlowOperation, 0>() };
static constexpr JSValueRegs thrownValueJSR { preferredArgumentJSR<SlowOperation, 1>() };
static constexpr GPRReg bytecodeOffsetGPR { GPRInfo::nonArgGPR0 };
static_assert(noOverlap(thrownValueJSR, bytecodeOffsetGPR), "Required for call to CTI thunk");
static_assert(noOverlap(globalObjectGPR, thrownValueJSR), "Required for call to slow operation");
}
namespace ResolveScope {
static constexpr GPRReg metadataGPR { GPRInfo::regT2 };
static constexpr GPRReg scopeGPR { GPRInfo::regT0 };
static constexpr GPRReg bytecodeOffsetGPR { GPRInfo::regT3 };
static constexpr GPRReg scratch1GPR { GPRInfo::regT5 };
static_assert(noOverlap(metadataGPR, scopeGPR, bytecodeOffsetGPR, scratch1GPR), "Required for call to CTI thunk");
}
namespace GetFromScope {
static constexpr GPRReg metadataGPR { GPRInfo::regT4 };
static constexpr GPRReg scopeGPR { GPRInfo::regT2 };
static constexpr GPRReg bytecodeOffsetGPR { GPRInfo::regT3 };
static constexpr GPRReg scratch1GPR { GPRInfo::regT5 };
static_assert(noOverlap(metadataGPR, scopeGPR, bytecodeOffsetGPR, scratch1GPR), "Required for call to CTI thunk");
}
namespace PutToScope {
static constexpr GPRReg bytecodeOffsetGPR { GPRInfo::argumentGPR2 };
}
namespace GetById {
// Registers used on both Fast and Slow paths
using SlowOperation = decltype(operationGetByIdOptimize);
static constexpr JSValueRegs resultJSR { JSRInfo::returnValueJSR };
static constexpr JSValueRegs baseJSR { preferredArgumentJSR<SlowOperation, 0>() };
static constexpr GPRReg stubInfoGPR { preferredArgumentGPR<SlowOperation, 1>() };
static constexpr auto scratchRegisters = allocatedScratchRegisters<GPRInfo, baseJSR, stubInfoGPR, GPRInfo::handlerGPR>;
static constexpr GPRReg scratch1GPR { scratchRegisters[0] };
static constexpr GPRReg scratch2GPR { scratchRegisters[1] };
static constexpr GPRReg scratch3GPR { scratchRegisters[2] };
static constexpr GPRReg scratch4GPR { scratchRegisters[3] };
static_assert(noOverlap(baseJSR, stubInfoGPR), "Required for DataIC");
static_assert(noOverlap(resultJSR, stubInfoGPR));
static_assert(noOverlap(baseJSR, stubInfoGPR, scratch1GPR, scratch2GPR, scratch3GPR, scratch4GPR), "Required for HandlerIC");
}
namespace GetByIdWithThis {
// Registers used on both Fast and Slow paths
using SlowOperation = decltype(operationGetByIdWithThisOptimize);
static constexpr JSValueRegs resultJSR { JSRInfo::returnValueJSR };
static constexpr JSValueRegs baseJSR { preferredArgumentJSR<SlowOperation, 0>() };
static constexpr JSValueRegs thisJSR { preferredArgumentJSR<SlowOperation, 1>() };
static constexpr GPRReg stubInfoGPR { preferredArgumentGPR<SlowOperation, 2>() };
static constexpr auto scratchRegisters = allocatedScratchRegisters<GPRInfo, baseJSR, thisJSR, stubInfoGPR, GPRInfo::handlerGPR>;
static constexpr GPRReg scratch1GPR { scratchRegisters[0] };
static constexpr GPRReg scratch2GPR { scratchRegisters[1] };
static_assert(noOverlap(baseJSR, thisJSR, stubInfoGPR, scratch1GPR, scratch2GPR), "Required for call to slow operation");
static_assert(noOverlap(resultJSR, stubInfoGPR));
}
namespace GetByVal {
// Registers used on both Fast and Slow paths
using SlowOperation = decltype(operationGetByValOptimize);
static constexpr JSValueRegs resultJSR { JSRInfo::returnValueJSR };
static constexpr JSValueRegs baseJSR { preferredArgumentJSR<SlowOperation, 0>() };
static constexpr JSValueRegs propertyJSR { preferredArgumentJSR<SlowOperation, 1>() };
static constexpr GPRReg stubInfoGPR { preferredArgumentGPR<SlowOperation, 2>() };
static constexpr GPRReg profileGPR { preferredArgumentGPR<SlowOperation, 3>() };
static_assert(noOverlap(baseJSR, propertyJSR, stubInfoGPR, profileGPR), "Required for DataIC");
static constexpr auto scratchRegisters = allocatedScratchRegisters<GPRInfo, baseJSR, propertyJSR, stubInfoGPR, profileGPR, GPRInfo::handlerGPR>;
static constexpr GPRReg scratch1GPR { scratchRegisters[0] };
#if USE(JSVALUE64)
static constexpr GPRReg scratch2GPR { scratchRegisters[1] };
static constexpr GPRReg scratch3GPR { scratchRegisters[2] };
static_assert(noOverlap(baseJSR, propertyJSR, stubInfoGPR, profileGPR, scratch1GPR, scratch2GPR, scratch3GPR), "Required for DataIC");
#endif
static_assert(noOverlap(resultJSR, stubInfoGPR));
}
#if USE(JSVALUE64)
namespace EnumeratorGetByVal {
// We rely on using the same registers when linking a CodeBlock and initializing registers
// for a GetByVal StubInfo.
using GetByVal::resultJSR;
using GetByVal::baseJSR;
using GetByVal::propertyJSR;
using GetByVal::stubInfoGPR;
using GetByVal::profileGPR;
using GetByVal::scratch1GPR;
using GetByVal::scratch2GPR;
using GetByVal::scratch3GPR;
static_assert(noOverlap(baseJSR, propertyJSR, stubInfoGPR, profileGPR, scratch1GPR, scratch2GPR, scratch3GPR));
static_assert(noOverlap(resultJSR, stubInfoGPR));
}
#endif
#if USE(JSVALUE64)
namespace GetByValWithThis {
// Registers used on both Fast and Slow paths
using SlowOperation = decltype(operationGetByValWithThisOptimize);
static constexpr JSValueRegs resultJSR { JSRInfo::returnValueJSR };
static constexpr JSValueRegs baseJSR { preferredArgumentJSR<SlowOperation, 0>() };
static constexpr JSValueRegs propertyJSR { preferredArgumentJSR<SlowOperation, 1>() };
static constexpr JSValueRegs thisJSR { preferredArgumentJSR<SlowOperation, 2>() };
static constexpr GPRReg stubInfoGPR { preferredArgumentGPR<SlowOperation, 3>() };
static constexpr GPRReg profileGPR { preferredArgumentGPR<SlowOperation, 4>() };
static constexpr auto scratchRegisters = allocatedScratchRegisters<GPRInfo, baseJSR, propertyJSR, thisJSR, stubInfoGPR, profileGPR, GPRInfo::handlerGPR>;
static constexpr GPRReg scratch1GPR { scratchRegisters[0] };
static_assert(noOverlap(baseJSR, propertyJSR, thisJSR, stubInfoGPR, profileGPR, GPRInfo::handlerGPR, scratch1GPR), "Required for call to slow operation");
static_assert(noOverlap(resultJSR, stubInfoGPR));
}
#endif
namespace PutById {
// Registers used on both Fast and Slow paths
using SlowOperation = decltype(operationPutByIdStrictOptimize);
static constexpr JSValueRegs valueJSR { preferredArgumentJSR<SlowOperation, 0>() };
static constexpr JSValueRegs baseJSR { preferredArgumentJSR<SlowOperation, 1>() };
static constexpr GPRReg stubInfoGPR { preferredArgumentGPR<SlowOperation, 2>() };
static constexpr auto scratchRegisters = allocatedScratchRegisters<GPRInfo, valueJSR, baseJSR, stubInfoGPR, GPRInfo::handlerGPR>;
static constexpr GPRReg scratch1GPR { scratchRegisters[0] };
static_assert(noOverlap(baseJSR, valueJSR, stubInfoGPR, scratch1GPR), "Required for DataIC");
static_assert(noOverlap(baseJSR, valueJSR, stubInfoGPR, GPRInfo::handlerGPR, scratch1GPR), "Required for call to slow operation");
#if USE(JSVALUE64)
static constexpr GPRReg scratch2GPR { scratchRegisters[1] };
static constexpr GPRReg scratch3GPR { scratchRegisters[2] };
static constexpr GPRReg scratch4GPR { scratchRegisters[3] };
static_assert(noOverlap(baseJSR, valueJSR, stubInfoGPR, GPRInfo::handlerGPR, scratch1GPR, scratch2GPR, scratch3GPR, scratch4GPR), "Required for HandlerIC");
#endif
}
namespace PutByVal {
using SlowOperation = decltype(operationPutByValStrictOptimize);
static constexpr JSValueRegs baseJSR { preferredArgumentJSR<SlowOperation, 0>() };
static constexpr JSValueRegs propertyJSR { preferredArgumentJSR<SlowOperation, 1>() };
static constexpr JSValueRegs valueJSR { preferredArgumentJSR<SlowOperation, 2>() };
static constexpr GPRReg stubInfoGPR { preferredArgumentGPR<SlowOperation, 3>() };
static constexpr GPRReg profileGPR { preferredArgumentGPR<SlowOperation, 4>() };
#if USE(JSVALUE64)
static constexpr auto scratchRegisters = allocatedScratchRegisters<GPRInfo, baseJSR, propertyJSR, valueJSR, stubInfoGPR, profileGPR, GPRInfo::handlerGPR>;
static constexpr GPRReg scratch1GPR { scratchRegisters[0] };
static constexpr GPRReg scratch2GPR { scratchRegisters[1] };
static_assert(noOverlap(baseJSR, propertyJSR, valueJSR, stubInfoGPR, profileGPR, scratch1GPR, GPRInfo::handlerGPR), "Required for call to slow operation");
static_assert(noOverlap(baseJSR, propertyJSR, valueJSR, stubInfoGPR, profileGPR, scratch1GPR, scratch2GPR), "Required for HandlerIC");
#else
static constexpr auto scratchRegisters = allocatedScratchRegisters<GPRInfo, baseJSR, propertyJSR, valueJSR, stubInfoGPR, profileGPR>;
static constexpr GPRReg scratch1GPR { scratchRegisters[0] };
#endif
}
#if USE(JSVALUE64)
namespace EnumeratorPutByVal {
// We rely on using the same registers when linking a CodeBlock and initializing registers
// for a PutByVal StubInfo.
using PutByVal::baseJSR;
using PutByVal::propertyJSR;
using PutByVal::valueJSR;
using PutByVal::profileGPR;
using PutByVal::stubInfoGPR;
using PutByVal::scratch1GPR;
using PutByVal::scratch2GPR;
}
#endif
namespace InById {
using GetById::resultJSR;
using GetById::baseJSR;
using GetById::stubInfoGPR;
using GetById::scratch1GPR;
static_assert(noOverlap(resultJSR, stubInfoGPR));
}
namespace InByVal {
using GetByVal::resultJSR;
using GetByVal::baseJSR;
using GetByVal::propertyJSR;
using GetByVal::stubInfoGPR;
using GetByVal::profileGPR;
using GetByVal::scratch1GPR;
static_assert(noOverlap(resultJSR, stubInfoGPR));
}
namespace DelById {
// Registers used on both Fast and Slow paths
using SlowOperation = decltype(operationDeleteByIdStrictOptimize);
static constexpr JSValueRegs resultJSR { JSRInfo::returnValueJSR };
static constexpr JSValueRegs baseJSR { preferredArgumentJSR<SlowOperation, 0>() };
static constexpr GPRReg stubInfoGPR { preferredArgumentGPR<SlowOperation, 1>() };
static constexpr auto scratchRegisters = allocatedScratchRegisters<GPRInfo, baseJSR, stubInfoGPR, GPRInfo::handlerGPR>;
static constexpr GPRReg scratch1GPR { scratchRegisters[0] };
static constexpr GPRReg scratch2GPR { scratchRegisters[1] };
static constexpr GPRReg scratch3GPR { scratchRegisters[2] };
static_assert(noOverlap(baseJSR, stubInfoGPR, scratch1GPR, scratch2GPR, scratch3GPR, GPRInfo::handlerGPR), "Required for call to slow operation");
static_assert(noOverlap(resultJSR.payloadGPR(), stubInfoGPR));
}
namespace DelByVal {
// Registers used on both Fast and Slow paths
using SlowOperation = decltype(operationDeleteByValStrictOptimize);
static constexpr JSValueRegs resultJSR { JSRInfo::returnValueJSR };
static constexpr JSValueRegs baseJSR { preferredArgumentJSR<SlowOperation, 0>() };
static constexpr JSValueRegs propertyJSR { preferredArgumentJSR<SlowOperation, 1>() };
static constexpr GPRReg stubInfoGPR { preferredArgumentGPR<SlowOperation, 2>() };
static constexpr auto scratchRegisters = allocatedScratchRegisters<GPRInfo, baseJSR, propertyJSR, stubInfoGPR, GPRInfo::handlerGPR>;
static constexpr GPRReg scratch1GPR { scratchRegisters[0] };
static constexpr GPRReg scratch2GPR { scratchRegisters[1] };
static constexpr GPRReg scratch3GPR { scratchRegisters[2] };
static_assert(noOverlap(baseJSR, propertyJSR, stubInfoGPR, scratch1GPR, scratch2GPR, scratch3GPR, GPRInfo::handlerGPR), "Required for call to slow operation");
static_assert(noOverlap(resultJSR.payloadGPR(), stubInfoGPR));
}
namespace PrivateBrand {
using GetByVal::baseJSR;
using GetByVal::propertyJSR;
using GetByVal::stubInfoGPR;
using GetByVal::scratch1GPR;
static_assert(noOverlap(baseJSR, propertyJSR, stubInfoGPR), "Required for DataIC");
}
} // namespace BaselineJITRegisters
} // namespace JSC
#endif // ENABLE(JIT)
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