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FTLOutput.cpp
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992 lines (837 loc) · 30 KB
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/*
* Copyright (C) 2013-2019 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 "FTLOutput.h"
#if ENABLE(FTL_JIT)
#include "B3AtomicValue.h"
#include "B3BasicBlockInlines.h"
#include "B3Const32Value.h"
#include "B3FenceValue.h"
#include "B3MathExtras.h"
#include "B3MemoryValue.h"
#include "B3SlotBaseValue.h"
#include "B3StackmapGenerationParams.h"
#include "B3UpsilonValue.h"
#include "B3ValueInlines.h"
#include "ProbeContext.h"
#include "SuperSampler.h"
namespace JSC { namespace FTL {
using namespace B3;
Output::Output(State& state)
: m_proc(*state.proc)
{
}
Output::~Output() = default;
void Output::initialize(AbstractHeapRepository& heaps)
{
m_heaps = &heaps;
}
LBasicBlock Output::newBlock()
{
LBasicBlock result = m_proc.addBlock(m_frequency);
if (!m_nextBlock)
m_blockOrder.append(result);
else
m_blockOrder.insertBefore(m_nextBlock, result);
return result;
}
void Output::applyBlockOrder()
{
m_proc.setBlockOrder(m_blockOrder);
}
LBasicBlock Output::appendTo(LBasicBlock block, LBasicBlock nextBlock)
{
appendTo(block);
return insertNewBlocksBefore(nextBlock);
}
void Output::appendTo(LBasicBlock block)
{
m_block = block;
}
void Output::probeDebugPrint(const String& str, LValue value)
{
PatchpointValue* result = patchpoint(Void);
result->append(value, ValueRep::SomeRegister);
result->setGenerator(
[=] (CCallHelpers& jit, const StackmapGenerationParams& params) {
auto reg = params.at(0).gpr();
jit.probeDebug([=](Probe::Context& ctx) {
dataLogLn(str, " value: ", ctx.gpr<uint64_t>(reg));
});
});
result->effects = Effects::forCall();
}
LValue Output::framePointer()
{
return m_block->appendNew<B3::Value>(m_proc, B3::FramePointer, origin());
}
SlotBaseValue* Output::lockedStackSlot(uint64_t bytes)
{
return m_block->appendNew<SlotBaseValue>(m_proc, origin(), m_proc.addStackSlot(bytes));
}
LValue Output::constBool(bool value)
{
if (value)
return booleanTrue;
return booleanFalse;
}
LValue Output::constInt32(int32_t value)
{
return m_block->appendNew<B3::Const32Value>(m_proc, origin(), value);
}
LValue Output::constInt64(int64_t value)
{
return m_block->appendNew<B3::Const64Value>(m_proc, origin(), value);
}
LValue Output::constDouble(double value)
{
return m_block->appendNew<B3::ConstDoubleValue>(m_proc, origin(), value);
}
LValue Output::phi(LType type)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Phi, type, origin());
}
LValue Output::opaque(LValue value)
{
return m_block->appendNew<Value>(m_proc, Opaque, origin(), value);
}
LValue Output::extract(LValue value, unsigned index)
{
return m_block->appendNew<ExtractValue>(m_proc, origin(), m_proc.typeAtOffset(value->type(), index), value, index);
}
LValue Output::add(LValue left, LValue right)
{
if (Value* result = left->addConstant(m_proc, right)) {
m_block->append(result);
return result;
}
return m_block->appendNew<B3::Value>(m_proc, B3::Add, origin(), left, right);
}
LValue Output::sub(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Sub, origin(), left, right);
}
LValue Output::mul(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Mul, origin(), left, right);
}
LValue Output::div(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Div, origin(), left, right);
}
LValue Output::chillDiv(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, chill(B3::Div), origin(), left, right);
}
LValue Output::mod(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Mod, origin(), left, right);
}
LValue Output::chillMod(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, chill(B3::Mod), origin(), left, right);
}
LValue Output::neg(LValue value)
{
return m_block->appendNew<Value>(m_proc, B3::Neg, origin(), value);
}
LValue Output::purifyNaN(LValue value)
{
return m_block->appendNew<Value>(m_proc, B3::PurifyNaN, origin(), value);
}
LValue Output::doubleAdd(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Add, origin(), left, right);
}
LValue Output::doubleSub(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Sub, origin(), left, right);
}
LValue Output::doubleMul(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Mul, origin(), left, right);
}
LValue Output::doubleDiv(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Div, origin(), left, right);
}
LValue Output::doubleMod(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Mod, origin(), left, right);
}
LValue Output::bitAnd(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::BitAnd, origin(), left, right);
}
LValue Output::bitOr(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::BitOr, origin(), left, right);
}
LValue Output::bitXor(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::BitXor, origin(), left, right);
}
LValue Output::shl(LValue left, LValue right)
{
right = castToInt32(right);
if (Value* result = left->shlConstant(m_proc, right)) {
m_block->append(result);
return result;
}
return m_block->appendNew<B3::Value>(m_proc, B3::Shl, origin(), left, right);
}
LValue Output::aShr(LValue left, LValue right)
{
right = castToInt32(right);
if (Value* result = left->sShrConstant(m_proc, right)) {
m_block->append(result);
return result;
}
return m_block->appendNew<B3::Value>(m_proc, B3::SShr, origin(), left, right);
}
LValue Output::lShr(LValue left, LValue right)
{
right = castToInt32(right);
if (Value* result = left->zShrConstant(m_proc, right)) {
m_block->append(result);
return result;
}
return m_block->appendNew<B3::Value>(m_proc, B3::ZShr, origin(), left, right);
}
LValue Output::bitNot(LValue value)
{
return m_block->appendNew<B3::Value>(m_proc, B3::BitXor, origin(),
value,
m_block->appendIntConstant(m_proc, origin(), value->type(), -1));
}
LValue Output::logicalNot(LValue value)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Equal, origin(), value, int32Zero);
}
LValue Output::ctlz32(LValue operand)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Clz, origin(), operand);
}
LValue Output::doubleAbs(LValue value)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Abs, origin(), value);
}
LValue Output::doubleCeil(LValue operand)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Ceil, origin(), operand);
}
LValue Output::doubleFloor(LValue operand)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Floor, origin(), operand);
}
LValue Output::doubleTrunc(LValue operand)
{
return m_block->appendNew<B3::Value>(m_proc, B3::FTrunc, origin(), operand);
}
LValue Output::doubleUnary(DFG::Arith::UnaryType type, LValue value)
{
return callWithoutSideEffects(B3::Double, DFG::arithUnaryFunction(type), value);
}
LValue Output::doubleStdPow(LValue xOperand, LValue yOperand)
{
return callWithoutSideEffects(B3::Double, Math::stdPowDouble, xOperand, yOperand);
}
LValue Output::doublePowi(LValue x, LValue y)
{
// FIXME: powDoubleInt32() should be inlined here since Output knows about block layout and
// should be involved in any operation that creates blocks.
// https://bugs.webkit.org/show_bug.cgi?id=152223
auto result = powDoubleInt32(m_proc, m_block, origin(), x, y);
m_block = result.first;
return result.second;
}
LValue Output::doubleSqrt(LValue value)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Sqrt, origin(), value);
}
LValue Output::doubleMax(LValue lhs, LValue rhs)
{
return m_block->appendNew<B3::Value>(m_proc, B3::FMax, origin(), lhs, rhs);
}
LValue Output::doubleMin(LValue lhs, LValue rhs)
{
return m_block->appendNew<B3::Value>(m_proc, B3::FMin, origin(), lhs, rhs);
}
LValue Output::doubleToInt32(LValue value)
{
PatchpointValue* result = patchpoint(Int32);
result->append(value, ValueRep::SomeRegister);
result->setGenerator(
[] (CCallHelpers& jit, const StackmapGenerationParams& params) {
jit.truncateDoubleToInt32(params[1].fpr(), params[0].gpr());
});
result->effects = Effects::none();
return result;
}
LValue Output::doubleToInt64(LValue value)
{
PatchpointValue* result = patchpoint(Int64);
result->append(value, ValueRep::SomeRegister);
result->setGenerator(
[] (CCallHelpers& jit, const StackmapGenerationParams& params) {
jit.truncateDoubleToInt64(params[1].fpr(), params[0].gpr());
});
result->effects = Effects::none();
return result;
}
LValue Output::doubleToUInt32(LValue value)
{
PatchpointValue* result = patchpoint(Int32);
result->append(value, ValueRep::SomeRegister);
result->setGenerator(
[] (CCallHelpers& jit, const StackmapGenerationParams& params) {
jit.truncateDoubleToUint32(params[1].fpr(), params[0].gpr());
});
result->effects = Effects::none();
return result;
}
LValue Output::signExt32To64(LValue value)
{
return m_block->appendNew<B3::Value>(m_proc, B3::SExt32, origin(), value);
}
LValue Output::signExt32ToPtr(LValue value)
{
return signExt32To64(value);
}
LValue Output::zeroExt(LValue value, LType type)
{
if (value->type() == type)
return value;
if (value->hasInt32())
return m_block->appendIntConstant(m_proc, origin(), Int64, static_cast<uint64_t>(static_cast<uint32_t>(value->asInt32())));
return m_block->appendNew<B3::Value>(m_proc, B3::ZExt32, origin(), value);
}
LValue Output::intToDouble(LValue value)
{
return m_block->appendNew<B3::Value>(m_proc, B3::IToD, origin(), value);
}
LValue Output::unsignedToDouble(LValue value)
{
return intToDouble(zeroExt(value, Int64));
}
LValue Output::castToInt32(LValue value)
{
if (value->type() == Int32)
return value;
if (value->hasInt64())
return constInt32(static_cast<int32_t>(value->asInt64()));
return m_block->appendNew<B3::Value>(m_proc, B3::Trunc, origin(), value);
}
LValue Output::doubleToFloat(LValue value)
{
return m_block->appendNew<B3::Value>(m_proc, B3::DoubleToFloat, origin(), value);
}
LValue Output::floatToDouble(LValue value)
{
return m_block->appendNew<B3::Value>(m_proc, B3::FloatToDouble, origin(), value);
}
LValue Output::load(TypedPointer pointer, LType type)
{
LValue load = m_block->appendNew<MemoryValue>(m_proc, Load, type, origin(), pointer.value());
m_heaps->decorateMemory(pointer.heap(), load);
return load;
}
LValue Output::load8SignExt32(TypedPointer pointer)
{
LValue load = m_block->appendNew<MemoryValue>(m_proc, Load8S, Int32, origin(), pointer.value());
m_heaps->decorateMemory(pointer.heap(), load);
return load;
}
LValue Output::load8ZeroExt32(TypedPointer pointer)
{
LValue load = m_block->appendNew<MemoryValue>(m_proc, Load8Z, Int32, origin(), pointer.value());
m_heaps->decorateMemory(pointer.heap(), load);
return load;
}
LValue Output::load16SignExt32(TypedPointer pointer)
{
LValue load = m_block->appendNew<MemoryValue>(m_proc, Load16S, Int32, origin(), pointer.value());
m_heaps->decorateMemory(pointer.heap(), load);
return load;
}
LValue Output::load16ZeroExt32(TypedPointer pointer)
{
LValue load = m_block->appendNew<MemoryValue>(m_proc, Load16Z, Int32, origin(), pointer.value());
m_heaps->decorateMemory(pointer.heap(), load);
return load;
}
LValue Output::store(LValue value, TypedPointer pointer)
{
LValue store = m_block->appendNew<MemoryValue>(m_proc, Store, origin(), value, pointer.value());
m_heaps->decorateMemory(pointer.heap(), store);
return store;
}
FenceValue* Output::fence(const AbstractHeap* read, const AbstractHeap* write)
{
FenceValue* result = m_block->appendNew<FenceValue>(m_proc, origin());
m_heaps->decorateFenceRead(read, result);
m_heaps->decorateFenceWrite(write, result);
return result;
}
LValue Output::store32As8(LValue value, TypedPointer pointer)
{
LValue store = m_block->appendNew<MemoryValue>(m_proc, Store8, origin(), value, pointer.value());
m_heaps->decorateMemory(pointer.heap(), store);
return store;
}
LValue Output::store32As16(LValue value, TypedPointer pointer)
{
LValue store = m_block->appendNew<MemoryValue>(m_proc, Store16, origin(), value, pointer.value());
m_heaps->decorateMemory(pointer.heap(), store);
return store;
}
LValue Output::storeDoubleAsFloat16(LValue value, TypedPointer pointer)
{
PatchpointValue* result = patchpoint(Void);
result->append(value, ValueRep::SomeRegister);
result->append(pointer.value(), ValueRep::SomeRegister);
result->numFPScratchRegisters = 1;
result->setGenerator(
[](CCallHelpers& jit, const StackmapGenerationParams& params) {
FPRReg scratchFPR = params.fpScratch(0);
jit.convertDoubleToFloat16(params[0].fpr(), scratchFPR);
jit.storeFloat16(scratchFPR, CCallHelpers::Address(params[1].gpr()));
});
auto effects = Effects::none();
effects.writes = HeapRange::top();
effects.controlDependent = true;
result->effects = effects;
return result;
}
LValue Output::baseIndex(LValue base, LValue index, Scale scale, ptrdiff_t offset)
{
LValue accumulatedOffset;
switch (scale) {
case ScaleOne:
accumulatedOffset = index;
break;
case ScaleTwo:
accumulatedOffset = shl(index, intPtrOne);
break;
case ScaleFour:
accumulatedOffset = shl(index, intPtrTwo);
break;
case ScaleEight:
case ScalePtr:
accumulatedOffset = shl(index, intPtrThree);
break;
}
if (offset)
accumulatedOffset = add(accumulatedOffset, constIntPtr(offset));
return add(base, accumulatedOffset);
}
LValue Output::equal(LValue left, LValue right)
{
TriState result = left->equalConstant(right);
if (result != TriState::Indeterminate)
return constBool(result == TriState::True);
return m_block->appendNew<B3::Value>(m_proc, B3::Equal, origin(), left, right);
}
LValue Output::notEqual(LValue left, LValue right)
{
TriState result = left->notEqualConstant(right);
if (result != TriState::Indeterminate)
return constBool(result == TriState::True);
return m_block->appendNew<B3::Value>(m_proc, B3::NotEqual, origin(), left, right);
}
LValue Output::above(LValue left, LValue right)
{
TriState result = left->aboveConstant(right);
if (result != TriState::Indeterminate)
return constBool(result == TriState::True);
return m_block->appendNew<B3::Value>(m_proc, B3::Above, origin(), left, right);
}
LValue Output::aboveOrEqual(LValue left, LValue right)
{
TriState result = left->aboveEqualConstant(right);
if (result != TriState::Indeterminate)
return constBool(result == TriState::True);
return m_block->appendNew<B3::Value>(m_proc, B3::AboveEqual, origin(), left, right);
}
LValue Output::below(LValue left, LValue right)
{
TriState result = left->belowConstant(right);
if (result != TriState::Indeterminate)
return constBool(result == TriState::True);
return m_block->appendNew<B3::Value>(m_proc, B3::Below, origin(), left, right);
}
LValue Output::belowOrEqual(LValue left, LValue right)
{
TriState result = left->belowEqualConstant(right);
if (result != TriState::Indeterminate)
return constBool(result == TriState::True);
return m_block->appendNew<B3::Value>(m_proc, B3::BelowEqual, origin(), left, right);
}
LValue Output::greaterThan(LValue left, LValue right)
{
TriState result = left->greaterThanConstant(right);
if (result != TriState::Indeterminate)
return constBool(result == TriState::True);
return m_block->appendNew<B3::Value>(m_proc, B3::GreaterThan, origin(), left, right);
}
LValue Output::greaterThanOrEqual(LValue left, LValue right)
{
TriState result = left->greaterEqualConstant(right);
if (result != TriState::Indeterminate)
return constBool(result == TriState::True);
return m_block->appendNew<B3::Value>(m_proc, B3::GreaterEqual, origin(), left, right);
}
LValue Output::lessThan(LValue left, LValue right)
{
TriState result = left->lessThanConstant(right);
if (result != TriState::Indeterminate)
return constBool(result == TriState::True);
return m_block->appendNew<B3::Value>(m_proc, B3::LessThan, origin(), left, right);
}
LValue Output::lessThanOrEqual(LValue left, LValue right)
{
TriState result = left->lessEqualConstant(right);
if (result != TriState::Indeterminate)
return constBool(result == TriState::True);
return m_block->appendNew<B3::Value>(m_proc, B3::LessEqual, origin(), left, right);
}
LValue Output::doubleEqual(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Equal, origin(), left, right);
}
LValue Output::doubleEqualOrUnordered(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::EqualOrUnordered, origin(), left, right);
}
LValue Output::doubleNotEqualOrUnordered(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::NotEqual, origin(), left, right);
}
LValue Output::doubleLessThan(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::LessThan, origin(), left, right);
}
LValue Output::doubleLessThanOrEqual(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::LessEqual, origin(), left, right);
}
LValue Output::doubleGreaterThan(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::GreaterThan, origin(), left, right);
}
LValue Output::doubleGreaterThanOrEqual(LValue left, LValue right)
{
return m_block->appendNew<B3::Value>(m_proc, B3::GreaterEqual, origin(), left, right);
}
LValue Output::doubleNotEqualAndOrdered(LValue left, LValue right)
{
return logicalNot(doubleEqualOrUnordered(left, right));
}
LValue Output::doubleLessThanOrUnordered(LValue left, LValue right)
{
return logicalNot(doubleGreaterThanOrEqual(left, right));
}
LValue Output::doubleLessThanOrEqualOrUnordered(LValue left, LValue right)
{
return logicalNot(doubleGreaterThan(left, right));
}
LValue Output::doubleGreaterThanOrUnordered(LValue left, LValue right)
{
return logicalNot(doubleLessThanOrEqual(left, right));
}
LValue Output::doubleGreaterThanOrEqualOrUnordered(LValue left, LValue right)
{
return logicalNot(doubleLessThan(left, right));
}
LValue Output::isZero32(LValue value)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Equal, origin(), value, int32Zero);
}
LValue Output::notZero32(LValue value)
{
return m_block->appendNew<B3::Value>(m_proc, B3::NotEqual, origin(), value, int32Zero);
}
LValue Output::isZero64(LValue value)
{
return m_block->appendNew<B3::Value>(m_proc, B3::Equal, origin(), value, int64Zero);
}
LValue Output::notZero64(LValue value)
{
return m_block->appendNew<B3::Value>(m_proc, B3::NotEqual, origin(), value, int64Zero);
}
LValue Output::select(LValue value, LValue left, LValue right, SelectPredictability predictability)
{
if (value->hasInt32()) {
if (value->asInt32())
return left;
else
return right;
}
if (predictability == SelectPredictability::NotPredictable)
return m_block->appendNew<B3::Value>(m_proc, B3::Select, origin(), value, left, right);
LBasicBlock continuation = newBlock();
LBasicBlock leftTakenBlock = newBlock();
LBasicBlock rightTakenBlock = newBlock();
m_block->appendNewControlValue(
m_proc, B3::Branch, origin(), value,
FrequentedBlock(leftTakenBlock, predictability != SelectPredictability::RightLikely ? FrequencyClass::Normal : FrequencyClass::Rare),
FrequentedBlock(rightTakenBlock, predictability != SelectPredictability::LeftLikely ? FrequencyClass::Normal : FrequencyClass::Rare));
LValue phi = continuation->appendNew<B3::Value>(m_proc, B3::Phi, left->type(), origin());
leftTakenBlock->appendNew<B3::UpsilonValue>(m_proc, origin(), left, phi);
leftTakenBlock->appendNewControlValue(m_proc, B3::Jump, origin(), B3::FrequentedBlock(continuation));
rightTakenBlock->appendNew<B3::UpsilonValue>(m_proc, origin(), right, phi);
rightTakenBlock->appendNewControlValue(m_proc, B3::Jump, origin(), B3::FrequentedBlock(continuation));
m_block = continuation;
return phi;
}
LValue Output::atomicXchgAdd(LValue operand, TypedPointer pointer, Width width)
{
LValue result = m_block->appendNew<AtomicValue>(m_proc, AtomicXchgAdd, origin(), width, operand, pointer.value(), 0, HeapRange(), HeapRange());
m_heaps->decorateMemory(pointer.heap(), result);
return result;
}
LValue Output::atomicXchgAnd(LValue operand, TypedPointer pointer, Width width)
{
LValue result = m_block->appendNew<AtomicValue>(m_proc, AtomicXchgAnd, origin(), width, operand, pointer.value(), 0, HeapRange(), HeapRange());
m_heaps->decorateMemory(pointer.heap(), result);
return result;
}
LValue Output::atomicXchgOr(LValue operand, TypedPointer pointer, Width width)
{
LValue result = m_block->appendNew<AtomicValue>(m_proc, AtomicXchgOr, origin(), width, operand, pointer.value(), 0, HeapRange(), HeapRange());
m_heaps->decorateMemory(pointer.heap(), result);
return result;
}
LValue Output::atomicXchgSub(LValue operand, TypedPointer pointer, Width width)
{
LValue result = m_block->appendNew<AtomicValue>(m_proc, AtomicXchgSub, origin(), width, operand, pointer.value(), 0, HeapRange(), HeapRange());
m_heaps->decorateMemory(pointer.heap(), result);
return result;
}
LValue Output::atomicXchgXor(LValue operand, TypedPointer pointer, Width width)
{
LValue result = m_block->appendNew<AtomicValue>(m_proc, AtomicXchgXor, origin(), width, operand, pointer.value(), 0, HeapRange(), HeapRange());
m_heaps->decorateMemory(pointer.heap(), result);
return result;
}
LValue Output::atomicXchg(LValue operand, TypedPointer pointer, Width width)
{
LValue result = m_block->appendNew<AtomicValue>(m_proc, AtomicXchg, origin(), width, operand, pointer.value(), 0, HeapRange(), HeapRange());
m_heaps->decorateMemory(pointer.heap(), result);
return result;
}
LValue Output::atomicStrongCAS(LValue expected, LValue newValue, TypedPointer pointer, Width width)
{
LValue result = m_block->appendNew<AtomicValue>(m_proc, AtomicStrongCAS, origin(), width, expected, newValue, pointer.value(), 0, HeapRange(), HeapRange());
m_heaps->decorateMemory(pointer.heap(), result);
return result;
}
void Output::jump(LBasicBlock destination)
{
m_block->appendNewControlValue(m_proc, B3::Jump, origin(), B3::FrequentedBlock(destination));
}
void Output::branch(LValue condition, LBasicBlock taken, Weight takenWeight, LBasicBlock notTaken, Weight notTakenWeight)
{
m_block->appendNewControlValue(
m_proc, B3::Branch, origin(), condition,
FrequentedBlock(taken, takenWeight.frequencyClass()),
FrequentedBlock(notTaken, notTakenWeight.frequencyClass()));
}
void Output::check(LValue condition, WeightedTarget taken, Weight notTakenWeight)
{
LBasicBlock continuation = newBlock();
branch(condition, taken, WeightedTarget(continuation, notTakenWeight));
appendTo(continuation);
}
void Output::check(LValue condition, WeightedTarget taken)
{
check(condition, taken, taken.weight().inverse());
}
void Output::ret(LValue value)
{
m_block->appendNewControlValue(m_proc, B3::Return, origin(), value);
}
void Output::verify(LValue value)
{
CheckValue* check = speculate(logicalNot(value));
check->setGenerator([] (CCallHelpers& jit, const B3::StackmapGenerationParams&) {
jit.breakpoint();
});
}
void Output::unreachable()
{
m_block->appendNewControlValue(m_proc, B3::Oops, origin());
}
void Output::appendSuccessor(WeightedTarget target)
{
m_block->appendSuccessor(target.frequentedBlock());
}
CheckValue* Output::speculate(LValue value)
{
return m_block->appendNew<B3::CheckValue>(m_proc, B3::Check, origin(), value);
}
CheckValue* Output::speculateAdd(LValue left, LValue right)
{
return m_block->appendNew<B3::CheckValue>(m_proc, B3::CheckAdd, origin(), left, right);
}
CheckValue* Output::speculateSub(LValue left, LValue right)
{
return m_block->appendNew<B3::CheckValue>(m_proc, B3::CheckSub, origin(), left, right);
}
CheckValue* Output::speculateMul(LValue left, LValue right)
{
return m_block->appendNew<B3::CheckValue>(m_proc, B3::CheckMul, origin(), left, right);
}
PatchpointValue* Output::patchpoint(LType type)
{
return m_block->appendNew<B3::PatchpointValue>(m_proc, type, origin());
}
void Output::trap()
{
m_block->appendNewControlValue(m_proc, B3::Oops, origin());
}
ValueFromBlock Output::anchor(LValue value)
{
B3::UpsilonValue* upsilon = m_block->appendNew<B3::UpsilonValue>(m_proc, origin(), value);
return ValueFromBlock(upsilon, m_block);
}
LValue Output::bitCast(LValue value, LType type)
{
ASSERT_UNUSED(type, type == Int64 || type == Double);
return m_block->appendNew<B3::Value>(m_proc, B3::BitwiseCast, origin(), value);
}
LValue Output::fround(LValue doubleValue)
{
return floatToDouble(doubleToFloat(doubleValue));
}
LValue Output::f16round(LValue doubleValue)
{
PatchpointValue* result = patchpoint(Double);
result->append(doubleValue, ValueRep::SomeRegister);
result->setGenerator(
[](CCallHelpers& jit, const StackmapGenerationParams& params) {
jit.convertDoubleToFloat16(params[1].fpr(), params[0].fpr());
jit.convertFloat16ToDouble(params[0].fpr(), params[0].fpr());
});
return result;
}
LValue Output::load(TypedPointer pointer, LoadType type)
{
switch (type) {
case Load8SignExt32:
return load8SignExt32(pointer);
case Load8ZeroExt32:
return load8ZeroExt32(pointer);
case Load16SignExt32:
return load8SignExt32(pointer);
case Load16ZeroExt32:
return load8ZeroExt32(pointer);
case Load32:
return load32(pointer);
case Load64:
return load64(pointer);
case LoadPtr:
return loadPtr(pointer);
case LoadFloat:
return loadFloat(pointer);
case LoadDouble:
return loadDouble(pointer);
}
RELEASE_ASSERT_NOT_REACHED();
return nullptr;
}
LValue Output::loadFloat16AsDouble(TypedPointer pointer)
{
PatchpointValue* result = patchpoint(Double);
result->append(pointer.value(), ValueRep::SomeRegister);
result->setGenerator(
[](CCallHelpers& jit, const StackmapGenerationParams& params) {
jit.loadFloat16(CCallHelpers::Address(params[1].gpr()), params[0].fpr());
jit.convertFloat16ToDouble(params[0].fpr(), params[0].fpr());
});
auto effects = Effects::none();
effects.reads = HeapRange::top();
effects.controlDependent = true;
result->effects = effects;
return result;
}
LValue Output::store(LValue value, TypedPointer pointer, StoreType type)
{
switch (type) {
case Store32As8:
return store32As8(value, pointer);
case Store32As16:
return store32As16(value, pointer);
case Store32:
return store32(value, pointer);
case Store64:
return store64(value, pointer);
case StorePtr:
return storePtr(value, pointer);
case StoreFloat:
return storeFloat(value, pointer);
case StoreDouble:
return storeDouble(value, pointer);
}
RELEASE_ASSERT_NOT_REACHED();
return nullptr;
}
TypedPointer Output::absolute(const void* address)
{
return TypedPointer(m_heaps->absolute[address], constIntPtr(address));
}
void Output::incrementSuperSamplerCount()
{
TypedPointer counter = absolute(std::bit_cast<void*>(&g_superSamplerCount));
store32(add(load32(counter), int32One), counter);
}
void Output::decrementSuperSamplerCount()
{
TypedPointer counter = absolute(std::bit_cast<void*>(&g_superSamplerCount));
store32(sub(load32(counter), int32One), counter);
}
void Output::addIncomingToPhi(LValue phi, ValueFromBlock value)
{
if (value)
value.value()->as<B3::UpsilonValue>()->setPhi(phi);
}
void Output::entrySwitch(const Vector<LBasicBlock>& cases)
{
RELEASE_ASSERT(cases.size() == m_proc.numEntrypoints());
m_block->appendNew<Value>(m_proc, B3::EntrySwitch, origin());
for (LBasicBlock block : cases)
m_block->appendSuccessor(FrequentedBlock(block));
}
TypedPointer Output::baseIndex(IndexedAbstractHeap& heap, LValue base, LValue index, JSValue indexAsConstant, ptrdiff_t offset, LValue mask)
{
if (indexAsConstant.isInt32())
return address(base, heap.at(indexAsConstant.asInt32()), offset);
if (mask)
index = bitAnd(mask, index);
LValue result = add(base, mul(index, constIntPtr(heap.elementSize())));
return TypedPointer(heap.atAnyIndex(), addPtr(result, heap.offset() + offset));
}
} } // namespace JSC::FTL
#endif // ENABLE(FTL_JIT)
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