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/*
* Copyright (C) 2016-2017 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(WEBASSEMBLY)
#include "B3Compilation.h"
#include "RegisterAtOffsetList.h"
#include "WasmCompilationMode.h"
#include "WasmFormat.h"
#include "WasmFunctionCodeBlock.h"
#include "WasmIndexOrName.h"
#include "WasmTierUpCount.h"
#include <wtf/ThreadSafeRefCounted.h>
namespace JSC {
class LLIntOffsetsExtractor;
namespace Wasm {
class OMGForOSREntryCallee;
class Callee : public ThreadSafeRefCounted<Callee> {
WTF_MAKE_FAST_ALLOCATED;
public:
JS_EXPORT_PRIVATE virtual ~Callee();
IndexOrName indexOrName() const { return m_indexOrName; }
CompilationMode compilationMode() const { return m_compilationMode; }
virtual MacroAssemblerCodePtr<WasmEntryPtrTag> entrypoint() const = 0;
virtual RegisterAtOffsetList* calleeSaveRegisters() = 0;
virtual std::tuple<void*, void*> range() const = 0;
virtual void setOSREntryCallee(Ref<OMGForOSREntryCallee>&&)
{
RELEASE_ASSERT_NOT_REACHED();
}
void dump(PrintStream&) const;
protected:
JS_EXPORT_PRIVATE Callee(Wasm::CompilationMode);
JS_EXPORT_PRIVATE Callee(Wasm::CompilationMode, size_t, std::pair<const Name*, RefPtr<NameSection>>&&);
private:
CompilationMode m_compilationMode;
IndexOrName m_indexOrName;
};
class JITCallee : public Callee {
public:
MacroAssemblerCodePtr<WasmEntryPtrTag> entrypoint() const override { return m_entrypoint.compilation->code().retagged<WasmEntryPtrTag>(); }
RegisterAtOffsetList* calleeSaveRegisters() override { return &m_entrypoint.calleeSaveRegisters; }
Vector<UnlinkedWasmToWasmCall>& wasmToWasmCallsites() { return m_wasmToWasmCallsites; }
protected:
JS_EXPORT_PRIVATE JITCallee(Wasm::CompilationMode, Wasm::Entrypoint&&);
JS_EXPORT_PRIVATE JITCallee(Wasm::CompilationMode, Wasm::Entrypoint&&, size_t, std::pair<const Name*, RefPtr<NameSection>>&&, Vector<UnlinkedWasmToWasmCall>&&);
std::tuple<void*, void*> range() const override
{
void* start = m_entrypoint.compilation->codeRef().executableMemory()->start().untaggedPtr();
void* end = m_entrypoint.compilation->codeRef().executableMemory()->end().untaggedPtr();
return { start, end };
}
private:
Vector<UnlinkedWasmToWasmCall> m_wasmToWasmCallsites;
Wasm::Entrypoint m_entrypoint;
};
class OMGCallee final : public JITCallee {
public:
static Ref<OMGCallee> create(Wasm::Entrypoint&& entrypoint, size_t index, std::pair<const Name*, RefPtr<NameSection>>&& name, Vector<UnlinkedWasmToWasmCall>&& unlinkedCalls)
{
return adoptRef(*new OMGCallee(WTFMove(entrypoint), index, WTFMove(name), WTFMove(unlinkedCalls)));
}
private:
OMGCallee(Wasm::Entrypoint&& entrypoint, size_t index, std::pair<const Name*, RefPtr<NameSection>>&& name, Vector<UnlinkedWasmToWasmCall>&& unlinkedCalls)
: JITCallee(Wasm::CompilationMode::OMGMode, WTFMove(entrypoint), index, WTFMove(name), WTFMove(unlinkedCalls))
{
}
};
class OMGForOSREntryCallee final : public JITCallee {
public:
static Ref<OMGForOSREntryCallee> create(Wasm::Entrypoint&& entrypoint, size_t index, std::pair<const Name*, RefPtr<NameSection>>&& name, unsigned osrEntryScratchBufferSize, uint32_t loopIndex, Vector<UnlinkedWasmToWasmCall>&& unlinkedCalls)
{
return adoptRef(*new OMGForOSREntryCallee(WTFMove(entrypoint), index, WTFMove(name), osrEntryScratchBufferSize, loopIndex, WTFMove(unlinkedCalls)));
}
unsigned osrEntryScratchBufferSize() const { return m_osrEntryScratchBufferSize; }
uint32_t loopIndex() const { return m_loopIndex; }
private:
OMGForOSREntryCallee(Wasm::Entrypoint&& entrypoint, size_t index, std::pair<const Name*, RefPtr<NameSection>>&& name, unsigned osrEntryScratchBufferSize, uint32_t loopIndex, Vector<UnlinkedWasmToWasmCall>&& unlinkedCalls)
: JITCallee(Wasm::CompilationMode::OMGForOSREntryMode, WTFMove(entrypoint), index, WTFMove(name), WTFMove(unlinkedCalls))
, m_osrEntryScratchBufferSize(osrEntryScratchBufferSize)
, m_loopIndex(loopIndex)
{
}
unsigned m_osrEntryScratchBufferSize;
uint32_t m_loopIndex;
};
class EmbedderEntrypointCallee final : public JITCallee {
public:
static Ref<EmbedderEntrypointCallee> create(Wasm::Entrypoint&& entrypoint)
{
return adoptRef(*new EmbedderEntrypointCallee(WTFMove(entrypoint)));
}
private:
EmbedderEntrypointCallee(Wasm::Entrypoint&& entrypoint)
: JITCallee(Wasm::CompilationMode::EmbedderEntrypointMode, WTFMove(entrypoint))
{
}
};
class BBQCallee final : public JITCallee {
public:
static Ref<BBQCallee> create(Wasm::Entrypoint&& entrypoint, size_t index, std::pair<const Name*, RefPtr<NameSection>>&& name, std::unique_ptr<TierUpCount>&& tierUpCount, Vector<UnlinkedWasmToWasmCall>&& unlinkedCalls)
{
return adoptRef(*new BBQCallee(WTFMove(entrypoint), index, WTFMove(name), WTFMove(tierUpCount), WTFMove(unlinkedCalls)));
}
OMGForOSREntryCallee* osrEntryCallee() { return m_osrEntryCallee.get(); }
void setOSREntryCallee(Ref<OMGForOSREntryCallee>&& osrEntryCallee) override
{
m_osrEntryCallee = WTFMove(osrEntryCallee);
}
bool didStartCompilingOSREntryCallee() const { return m_didStartCompilingOSREntryCallee; }
void setDidStartCompilingOSREntryCallee(bool value) { m_didStartCompilingOSREntryCallee = value; }
OMGCallee* replacement() { return m_replacement.get(); }
void setReplacement(Ref<OMGCallee>&& replacement)
{
m_replacement = WTFMove(replacement);
}
TierUpCount* tierUpCount() { return m_tierUpCount.get(); }
private:
BBQCallee(Wasm::Entrypoint&& entrypoint, size_t index, std::pair<const Name*, RefPtr<NameSection>>&& name, std::unique_ptr<TierUpCount>&& tierUpCount, Vector<UnlinkedWasmToWasmCall>&& unlinkedCalls)
: JITCallee(Wasm::CompilationMode::BBQMode, WTFMove(entrypoint), index, WTFMove(name), WTFMove(unlinkedCalls))
, m_tierUpCount(WTFMove(tierUpCount))
{
}
RefPtr<OMGForOSREntryCallee> m_osrEntryCallee;
RefPtr<OMGCallee> m_replacement;
std::unique_ptr<TierUpCount> m_tierUpCount;
bool m_didStartCompilingOSREntryCallee { false };
};
class LLIntCallee final : public Callee {
friend LLIntOffsetsExtractor;
public:
static Ref<LLIntCallee> create(std::unique_ptr<FunctionCodeBlock> codeBlock, size_t index, std::pair<const Name*, RefPtr<NameSection>>&& name)
{
return adoptRef(*new LLIntCallee(WTFMove(codeBlock), index, WTFMove(name)));
}
JS_EXPORT_PRIVATE void setEntrypoint(MacroAssemblerCodePtr<WasmEntryPtrTag>);
JS_EXPORT_PRIVATE MacroAssemblerCodePtr<WasmEntryPtrTag> entrypoint() const override;
JS_EXPORT_PRIVATE RegisterAtOffsetList* calleeSaveRegisters() override;
JS_EXPORT_PRIVATE std::tuple<void*, void*> range() const override;
JITCallee* replacement() { return m_replacement.get(); }
void setReplacement(Ref<JITCallee>&& replacement)
{
m_replacement = WTFMove(replacement);
}
OMGForOSREntryCallee* osrEntryCallee() { return m_osrEntryCallee.get(); }
void setOSREntryCallee(Ref<OMGForOSREntryCallee>&& osrEntryCallee) override
{
m_osrEntryCallee = WTFMove(osrEntryCallee);
}
LLIntTierUpCounter& tierUpCounter() { return m_codeBlock->tierUpCounter(); }
private:
LLIntCallee(std::unique_ptr<FunctionCodeBlock> codeBlock, size_t index, std::pair<const Name*, RefPtr<NameSection>>&& name)
: Callee(Wasm::CompilationMode::LLIntMode, index, WTFMove(name))
, m_codeBlock(WTFMove(codeBlock))
{
RELEASE_ASSERT(m_codeBlock);
}
RefPtr<JITCallee> m_replacement;
RefPtr<OMGForOSREntryCallee> m_osrEntryCallee;
std::unique_ptr<FunctionCodeBlock> m_codeBlock;
MacroAssemblerCodePtr<WasmEntryPtrTag> m_entrypoint;
};
class LLIntCallees : public ThreadSafeRefCounted<LLIntCallees> {
public:
static Ref<LLIntCallees> create(Vector<Ref<LLIntCallee>>&& llintCallees)
{
return adoptRef(*new LLIntCallees(WTFMove(llintCallees)));
}
const Ref<LLIntCallee>& at(unsigned i) const
{
return m_llintCallees.at(i);
}
const Ref<LLIntCallee>* data() const
{
return m_llintCallees.data();
}
private:
LLIntCallees(Vector<Ref<LLIntCallee>>&& llintCallees)
: m_llintCallees(WTFMove(llintCallees))
{
}
Vector<Ref<LLIntCallee>> m_llintCallees;
};
} } // namespace JSC::Wasm
#endif // ENABLE(WEBASSEMBLY)