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#include "Array.h"
#include "preprocessor/llvm_includes_start.h"
#include <llvm/IR/Module.h>
#include <llvm/IR/Function.h>
#include "preprocessor/llvm_includes_end.h"
#include "RuntimeManager.h"
#include "Runtime.h"
#include "Utils.h"
namespace dev
{
namespace eth
{
namespace jit
{
static const auto c_reallocStep = 1;
static const auto c_reallocMultipier = 2;
llvm::Value* LazyFunction::call(llvm::IRBuilder<>& _builder, std::initializer_list<llvm::Value*> const& _args, llvm::Twine const& _name)
{
if (!m_func)
m_func = m_creator();
return _builder.CreateCall(m_func, {_args.begin(), _args.size()}, _name);
}
llvm::Function* Array::createArrayPushFunc()
{
llvm::Type* argTypes[] = {m_array->getType(), Type::Word};
auto func = llvm::Function::Create(llvm::FunctionType::get(Type::Void, argTypes, false), llvm::Function::PrivateLinkage, "array.push", getModule());
func->setDoesNotThrow();
func->setDoesNotCapture(1);
auto arrayPtr = &func->getArgumentList().front();
arrayPtr->setName("arrayPtr");
auto value = arrayPtr->getNextNode();
value->setName("value");
InsertPointGuard guard{m_builder};
auto entryBB = llvm::BasicBlock::Create(m_builder.getContext(), "Entry", func);
auto reallocBB = llvm::BasicBlock::Create(m_builder.getContext(), "Realloc", func);
auto pushBB = llvm::BasicBlock::Create(m_builder.getContext(), "Push", func);
m_builder.SetInsertPoint(entryBB);
auto dataPtr = m_builder.CreateStructGEP(arrayPtr, 0, "dataPtr");
auto sizePtr = m_builder.CreateStructGEP(arrayPtr, 1, "sizePtr");
auto capPtr = m_builder.CreateStructGEP(arrayPtr, 2, "capPtr");
auto data = m_builder.CreateLoad(dataPtr, "data");
auto size = m_builder.CreateLoad(sizePtr, "size");
auto cap = m_builder.CreateLoad(capPtr, "cap");
auto reallocReq = m_builder.CreateICmpEQ(cap, size, "reallocReq");
m_builder.CreateCondBr(reallocReq, reallocBB, pushBB);
m_builder.SetInsertPoint(reallocBB);
auto newCap = m_builder.CreateNUWAdd(cap, m_builder.getInt64(c_reallocStep), "newCap");
//newCap = m_builder.CreateNUWMul(newCap, m_builder.getInt64(c_reallocMultipier));
auto reallocSize = m_builder.CreateShl(newCap, 5, "reallocSize"); // size in bytes: newCap * 32
auto bytes = m_builder.CreateBitCast(data, Type::BytePtr, "bytes");
auto newBytes = m_reallocFunc.call(m_builder, {bytes, reallocSize}, "newBytes");
auto newData = m_builder.CreateBitCast(newBytes, Type::WordPtr, "newData");
m_builder.CreateStore(newData, dataPtr);
m_builder.CreateStore(newCap, capPtr);
m_builder.CreateBr(pushBB);
m_builder.SetInsertPoint(pushBB);
auto dataPhi = m_builder.CreatePHI(Type::WordPtr, 2, "dataPhi");
dataPhi->addIncoming(data, entryBB);
dataPhi->addIncoming(newData, reallocBB);
auto newElemPtr = m_builder.CreateGEP(dataPhi, size, "newElemPtr");
m_builder.CreateStore(value, newElemPtr);
auto newSize = m_builder.CreateNUWAdd(size, m_builder.getInt64(1), "newSize");
m_builder.CreateStore(newSize, sizePtr);
m_builder.CreateRetVoid();
return func;
}
llvm::Function* Array::createArraySetFunc()
{
llvm::Type* argTypes[] = {m_array->getType(), Type::Size, Type::Word};
auto func = llvm::Function::Create(llvm::FunctionType::get(Type::Void, argTypes, false), llvm::Function::PrivateLinkage, "array.set", getModule());
func->setDoesNotThrow();
func->setDoesNotCapture(1);
auto arrayPtr = &func->getArgumentList().front();
arrayPtr->setName("arrayPtr");
auto index = arrayPtr->getNextNode();
index->setName("index");
auto value = index->getNextNode();
value->setName("value");
InsertPointGuard guard{m_builder};
m_builder.SetInsertPoint(llvm::BasicBlock::Create(m_builder.getContext(), {}, func));
auto dataPtr = m_builder.CreateStructGEP(arrayPtr, 0, "dataPtr");
auto data = m_builder.CreateLoad(dataPtr, "data");
auto valuePtr = m_builder.CreateGEP(data, index, "valuePtr");
m_builder.CreateStore(value, valuePtr);
m_builder.CreateRetVoid();
return func;
}
llvm::Function* Array::createArrayGetFunc()
{
llvm::Type* argTypes[] = {m_array->getType(), Type::Size};
auto func = llvm::Function::Create(llvm::FunctionType::get(Type::Word, argTypes, false), llvm::Function::PrivateLinkage, "array.get", getModule());
func->setDoesNotThrow();
func->setDoesNotCapture(1);
auto arrayPtr = &func->getArgumentList().front();
arrayPtr->setName("arrayPtr");
auto index = arrayPtr->getNextNode();
index->setName("index");
InsertPointGuard guard{m_builder};
m_builder.SetInsertPoint(llvm::BasicBlock::Create(m_builder.getContext(), {}, func));
auto dataPtr = m_builder.CreateStructGEP(arrayPtr, 0, "dataPtr");
auto data = m_builder.CreateLoad(dataPtr, "data");
auto valuePtr = m_builder.CreateGEP(data, index, "valuePtr");
auto value = m_builder.CreateLoad(valuePtr, "value");
m_builder.CreateRet(value);
return func;
}
llvm::Function* Array::createGetPtrFunc()
{
llvm::Type* argTypes[] = {m_array->getType(), Type::Size};
auto func = llvm::Function::Create(llvm::FunctionType::get(Type::WordPtr, argTypes, false), llvm::Function::PrivateLinkage, "array.getPtr", getModule());
func->setDoesNotThrow();
func->setDoesNotCapture(1);
auto arrayPtr = &func->getArgumentList().front();
arrayPtr->setName("arrayPtr");
auto index = arrayPtr->getNextNode();
index->setName("index");
InsertPointGuard guard{m_builder};
m_builder.SetInsertPoint(llvm::BasicBlock::Create(m_builder.getContext(), {}, func));
auto dataPtr = m_builder.CreateBitCast(arrayPtr, Type::BytePtr->getPointerTo(), "dataPtr");
auto data = m_builder.CreateLoad(dataPtr, "data");
auto bytePtr = m_builder.CreateGEP(data, index, "bytePtr");
auto wordPtr = m_builder.CreateBitCast(bytePtr, Type::WordPtr, "wordPtr");
m_builder.CreateRet(wordPtr);
return func;
}
llvm::Function* Array::createFreeFunc()
{
auto func = llvm::Function::Create(llvm::FunctionType::get(Type::Void, m_array->getType(), false), llvm::Function::PrivateLinkage, "array.free", getModule());
func->setDoesNotThrow();
func->setDoesNotCapture(1);
auto freeFunc = llvm::Function::Create(llvm::FunctionType::get(Type::Void, Type::BytePtr, false), llvm::Function::ExternalLinkage, "ext_free", getModule());
freeFunc->setDoesNotThrow();
freeFunc->setDoesNotCapture(1);
auto arrayPtr = &func->getArgumentList().front();
arrayPtr->setName("arrayPtr");
InsertPointGuard guard{m_builder};
m_builder.SetInsertPoint(llvm::BasicBlock::Create(m_builder.getContext(), {}, func));
auto dataPtr = m_builder.CreateStructGEP(arrayPtr, 0, "dataPtr");
auto data = m_builder.CreateLoad(dataPtr, "data");
auto mem = m_builder.CreateBitCast(data, Type::BytePtr, "mem");
m_builder.CreateCall(freeFunc, mem);
m_builder.CreateRetVoid();
return func;
}
llvm::Function* Array::getReallocFunc()
{
if (auto func = getModule()->getFunction("ext_realloc"))
return func;
llvm::Type* reallocArgTypes[] = {Type::BytePtr, Type::Size};
auto reallocFunc = llvm::Function::Create(llvm::FunctionType::get(Type::BytePtr, reallocArgTypes, false), llvm::Function::ExternalLinkage, "ext_realloc", getModule());
reallocFunc->setDoesNotThrow();
reallocFunc->setDoesNotAlias(0);
reallocFunc->setDoesNotCapture(1);
return reallocFunc;
}
llvm::Function* Array::createExtendFunc()
{
llvm::Type* argTypes[] = {m_array->getType(), Type::Size};
auto func = llvm::Function::Create(llvm::FunctionType::get(Type::Void, argTypes, false), llvm::Function::PrivateLinkage, "array.extend", getModule());
func->setDoesNotThrow();
func->setDoesNotCapture(1);
auto arrayPtr = &func->getArgumentList().front();
arrayPtr->setName("arrayPtr");
auto newSize = arrayPtr->getNextNode();
newSize->setName("newSize");
InsertPointGuard guard{m_builder};
m_builder.SetInsertPoint(llvm::BasicBlock::Create(m_builder.getContext(), {}, func));
auto dataPtr = m_builder.CreateBitCast(arrayPtr, Type::BytePtr->getPointerTo(), "dataPtr");// TODO: Use byte* in Array
auto sizePtr = m_builder.CreateStructGEP(arrayPtr, 1, "sizePtr");
auto capPtr = m_builder.CreateStructGEP(arrayPtr, 2, "capPtr");
auto data = m_builder.CreateLoad(dataPtr, "data");
auto size = m_builder.CreateLoad(sizePtr, "size");
auto extSize = m_builder.CreateNUWSub(newSize, size, "extSize");
auto newData = m_reallocFunc.call(m_builder, {data, newSize}, "newData"); // TODO: Check realloc result for null
auto extPtr = m_builder.CreateGEP(newData, size, "extPtr");
m_builder.CreateMemSet(extPtr, m_builder.getInt8(0), extSize, 16);
m_builder.CreateStore(newData, dataPtr);
m_builder.CreateStore(newSize, sizePtr);
m_builder.CreateStore(newSize, capPtr);
m_builder.CreateRetVoid();
return func;
}
llvm::Type* Array::getType()
{
llvm::Type* elementTys[] = {Type::WordPtr, Type::Size, Type::Size};
static auto arrayTy = llvm::StructType::create(elementTys, "Array");
return arrayTy;
}
Array::Array(llvm::IRBuilder<>& _builder, char const* _name) :
CompilerHelper(_builder),
m_pushFunc([this](){ return createArrayPushFunc(); }),
m_setFunc([this](){ return createArraySetFunc(); }),
m_getFunc([this](){ return createArrayGetFunc(); }),
m_freeFunc([this](){ return createFreeFunc(); })
{
m_array = m_builder.CreateAlloca(getType(), nullptr, _name);
m_builder.CreateStore(llvm::ConstantAggregateZero::get(getType()), m_array);
}
Array::Array(llvm::IRBuilder<>& _builder, llvm::Value* _array) :
CompilerHelper(_builder),
m_array(_array),
m_pushFunc([this](){ return createArrayPushFunc(); }),
m_setFunc([this](){ return createArraySetFunc(); }),
m_getFunc([this](){ return createArrayGetFunc(); }),
m_freeFunc([this](){ return createFreeFunc(); })
{
m_builder.CreateStore(llvm::ConstantAggregateZero::get(getType()), m_array);
}
void Array::pop(llvm::Value* _count)
{
auto sizePtr = m_builder.CreateStructGEP(m_array, 1, "sizePtr");
auto size = m_builder.CreateLoad(sizePtr, "size");
auto newSize = m_builder.CreateNUWSub(size, _count, "newSize");
m_builder.CreateStore(newSize, sizePtr);
}
llvm::Value* Array::size(llvm::Value* _array)
{
auto sizePtr = m_builder.CreateStructGEP(_array ? _array : m_array, 1, "sizePtr");
return m_builder.CreateLoad(sizePtr, "array.size");
}
void Array::extend(llvm::Value* _arrayPtr, llvm::Value* _size)
{
assert(_arrayPtr->getType() == m_array->getType());
assert(_size->getType() == Type::Size);
m_extendFunc.call(m_builder, {_arrayPtr, _size});
}
}
}
}
extern "C"
{
EXPORT void* ext_realloc(void* _data, size_t _size) noexcept
{
return std::realloc(_data, _size);
}
EXPORT void ext_free(void* _data) noexcept
{
std::free(_data);
}
}