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advanced.cpp
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advanced.cpp
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* File: InstructionsAdvanced.cpp
* Author: pgess <v.melnychenko@xreate.org>
*
* Created on June 26, 2016, 6:00 PM
*/
//#include <compilation/transformations.h>
#include "compilation/advanced.h"
#include "compilation/containers.h"
#include "compilation/transformersaturation.h"
#include "query/context.h"
#include "query/containers.h"
#include "llvmlayer.h"
#include "ast.h"
using namespace std;
using namespace llvm;
using namespace xreate;
using namespace xreate::containers;
using namespace xreate::compilation;
#define NAME(x) (hintRetVar.empty()? x : hintRetVar)
#define UNUSED(x) (void)(x)
#define EXPAND_CONTEXT \
LLVMLayer* llvm = context.pass->man->llvm; \
compilation::ICodeScopeUnit* scope = context.scope; \
compilation::IFunctionUnit* function = context.function;
Advanced::Advanced(compilation::Context ctx)
: context(ctx), tyNum(static_cast<llvm::IntegerType*> (ctx.pass->man->llvm->toLLVMType(ExpandedType(TypeAnnotation(TypePrimitive::Num))))) {
}
llvm::Value*
Advanced::compileMapSolidOutput(const Expression &expr, const std::string hintRetVar) {
EXPAND_CONTEXT
UNUSED(scope);
//initialization
Symbol symbolIn = Attachments::get<Symbol>(expr.getOperands()[0]);
ImplementationRec<SOLID> implIn = containers::Query::queryImplementation(symbolIn).extract<SOLID>(); // impl of input list
size_t size = implIn.size;
CodeScope* scopeLoop = expr.blocks.front();
std::string varEl = scopeLoop->__bindings[0];
Iterator* it = Iterator::create(context, symbolIn);
llvm::Value *rangeFrom = it->begin();
llvm::Value *rangeTo = it->end();
//definitions
ArrayType* tyNumArray = (ArrayType*) (llvm->toLLVMType(ExpandedType(TypeAnnotation(tag_array, TypePrimitive::Num, size))));
llvm::IRBuilder<> &builder = llvm->builder;
llvm::BasicBlock *blockLoop = llvm::BasicBlock::Create(llvm::getGlobalContext(), "loop", function->raw);
llvm::BasicBlock *blockBeforeLoop = builder.GetInsertBlock();
llvm::BasicBlock *blockAfterLoop = llvm::BasicBlock::Create(llvm::getGlobalContext(), "postloop", function->raw);
Value* dataOut = llvm->builder.CreateAlloca(tyNumArray, ConstantInt::get(tyNum, size), NAME("map"));
// * initial check
Value* condBefore = builder.CreateICmpSLE(rangeFrom, rangeTo);
builder.CreateCondBr(condBefore, blockLoop, blockAfterLoop);
// create PHI:
builder.SetInsertPoint(blockLoop);
llvm::PHINode *stateLoop = builder.CreatePHI(tyNum, 2, "mapIt");
stateLoop->addIncoming(rangeFrom, blockBeforeLoop);
// loop body:
Value* elIn = it->get(stateLoop, varEl);
compilation::ICodeScopeUnit* scopeLoopUnit = function->getScopeUnit(scopeLoop);
scopeLoopUnit->bindArg(elIn, move(varEl));
Value* elOut = scopeLoopUnit->compile();
Value *pElOut = builder.CreateGEP(dataOut, ArrayRef<Value *>(std::vector<Value*>{ConstantInt::get(tyNum, 0), stateLoop}));
builder.CreateStore(elOut, pElOut);
//next iteration preparing
Value *stateLoopNext = builder.CreateAdd(stateLoop, llvm::ConstantInt::get(tyNum, 1));
stateLoop->addIncoming(stateLoopNext, builder.GetInsertBlock());
//next iteration checks:
Value* condAfter = builder.CreateICmpSLE(stateLoopNext, rangeTo);
builder.CreateCondBr(condAfter, blockLoop, blockAfterLoop);
//finalization:
builder.SetInsertPoint(blockAfterLoop);
return dataOut;
}
Value*
Advanced::compileArrayIndex(llvm::Value* aggregate, std::vector<llvm::Value *> indexes, std::string hintRetVar) {
EXPAND_CONTEXT
UNUSED(function);
UNUSED(scope);
indexes.insert(indexes.begin(), llvm::ConstantInt::get(tyNum, 0));
llvm::Value *pEl = llvm->builder.CreateGEP(aggregate, llvm::ArrayRef<llvm::Value *>(indexes));
return llvm->builder.CreateLoad(pEl, NAME("el"));
}
Value*
Advanced::compileStructIndex(llvm::Value* aggregate, const ExpandedType& t, const std::string& idx) {
EXPAND_CONTEXT
UNUSED(scope);
UNUSED(function);
TypeUtils types(llvm);
std::vector<std::string>&& fields = types.getStructFields(t);
for (unsigned i = 0, size = fields.size(); i < size; ++i) {
if (fields.at(i) == idx) {
//TODO DISABLEDFEATURE validptr
// TODO review safety check: validPtr for `aggregate`
// SECTIONTAG validptr exception
// std::vector<llvm::Value*> refs;
// llvm::BasicBlock *blockSafe = llvm::BasicBlock::Create(llvm::getGlobalContext(), "safe", function->raw);
// PointerType* tyAggr = dyn_cast<PointerType>(aggregate->getType());
// llvm::Value* null = llvm::ConstantPointerNull::get(tyAggr);
// Value* condNull = llvm->builder.CreateICmpNE(aggregate, null);
//
// llvm::BasicBlock *blockException = llvm::BasicBlock::Create(llvm::getGlobalContext(), "exception", function->raw);
// llvm->builder.CreateCondBr(condNull, blockSafe, blockException);
// llvm->initExceptionBlock(blockException);
//
// llvm->builder.SetInsertPoint(blockSafe);
//dereference pointer
if (types.isPointer(t)) {
llvm::Value* addr = llvm->builder.CreateConstGEP2_32(nullptr, aggregate, 0, i);
return llvm->builder.CreateLoad(addr);
}
aggregate->getType()->dump();
return llvm->builder.CreateExtractValue(aggregate, llvm::ArrayRef<unsigned>{i});
}
}
assert(false && "not found required struct field");
return nullptr;
}
llvm::Value*
Advanced::compileFold(const Expression& fold, const std::string& hintRetVar) {
EXPAND_CONTEXT
assert(fold.op == Operator::FOLD);
//initialization:
Symbol varInSymbol = Attachments::get<Symbol>(fold.getOperands()[0]);
Implementation info = Query::queryImplementation(varInSymbol);
Iterator* it = Iterator::create(context, varInSymbol);
llvm::Value* rangeBegin = it->begin();
llvm::Value* rangeEnd = it->end();
llvm::Value* accumInit = scope->process(fold.getOperands()[1]);
std::string varIn = fold.getOperands()[0].getValueString();
std::string varAccum = fold.bindings[1];
std::string varEl = fold.bindings[0];
llvm::BasicBlock *blockBeforeLoop = llvm->builder.GetInsertBlock();
std::unique_ptr<TransformerSaturation> transformerSaturation(new TransformerSaturation(blockBeforeLoop, context.pass->managerTransformations));
llvm::BasicBlock *blockLoop = llvm::BasicBlock::Create(llvm::getGlobalContext(), "fold", function->raw);
llvm::BasicBlock *blockLoopBody = llvm::BasicBlock::Create(llvm::getGlobalContext(), "fold_body", function->raw);
llvm::BasicBlock *blockAfterLoop = llvm::BasicBlock::Create(llvm::getGlobalContext(), "fold_after", function->raw);
llvm::BasicBlock *blockNext = llvm::BasicBlock::Create(llvm::getGlobalContext(), "fold_next", function->raw);
llvm->builder.CreateBr(blockLoop);
// * create phi
llvm->builder.SetInsertPoint(blockLoop);
llvm::PHINode *accum = llvm->builder.CreatePHI(accumInit->getType(), 2, varAccum);
accum->addIncoming(accumInit, blockBeforeLoop);
llvm::PHINode *itLoop = llvm->builder.CreatePHI(rangeBegin->getType(), 2, "foldIt");
itLoop->addIncoming(rangeBegin, blockBeforeLoop);
// * loop checks
Value* condRange = llvm->builder.CreateICmpNE(itLoop, rangeEnd);
llvm->builder.CreateCondBr(condRange, blockLoopBody, blockAfterLoop);
// * loop body
llvm->builder.SetInsertPoint(blockLoopBody);
CodeScope* scopeLoop = fold.blocks.front();
compilation::ICodeScopeUnit* loopUnit = function->getScopeUnit(scopeLoop);
Value* elIn = it->get(itLoop);
loopUnit->bindArg(accum, move(varAccum));
loopUnit->bindArg(elIn, move(varEl));
Value* accumNext = loopUnit->compile();
// * Loop saturation checks
bool flagSaturationTriggered = transformerSaturation->insertSaturationChecks(blockNext, blockAfterLoop, context);
llvm::BasicBlock* blockSaturation = llvm->builder.GetInsertBlock();
if (!flagSaturationTriggered){
llvm->builder.CreateBr(blockNext);
}
// * computing next iteration state
llvm->builder.SetInsertPoint(blockNext);
Value *itLoopNext = it->advance(itLoop);
accum->addIncoming(accumNext, llvm->builder.GetInsertBlock());
itLoop->addIncoming(itLoopNext, llvm->builder.GetInsertBlock());
llvm->builder.CreateBr(blockLoop);
// * finalization:
llvm->builder.SetInsertPoint(blockAfterLoop);
if (!flagSaturationTriggered){
return accum;
}
llvm::PHINode* result = llvm->builder.CreatePHI(accumInit->getType(), 2);
result->addIncoming(accum, blockLoop);
result->addIncoming(accumNext, blockSaturation);
return result;
}
llvm::Value*
Advanced::compileFoldInf(const Expression& fold, const std::string& hintRetVar) {
EXPAND_CONTEXT
assert(fold.op == Operator::FOLD_INF);
std::string accumName = fold.bindings[0];
llvm::Value* accumInit = scope->process(fold.getOperands()[0]);
llvm::BasicBlock *blockBeforeLoop = llvm->builder.GetInsertBlock();
llvm::BasicBlock *blockLoop = llvm::BasicBlock::Create(llvm::getGlobalContext(), "foldinf", function->raw);
llvm::BasicBlock *blockNext = llvm::BasicBlock::Create(llvm::getGlobalContext(), "foldinf_next", function->raw);
llvm::BasicBlock *blockAfterLoop = llvm::BasicBlock::Create(llvm::getGlobalContext(), "foldinf_post", function->raw);
std::unique_ptr<TransformerSaturation> transformerSaturation(new TransformerSaturation(blockBeforeLoop, context.pass->managerTransformations));
llvm->builder.CreateBr(blockLoop);
// * create phi
llvm->builder.SetInsertPoint(blockLoop);
llvm::PHINode *accum = llvm->builder.CreatePHI(accumInit->getType(), 2, accumName);
accum->addIncoming(accumInit, blockBeforeLoop);
// * loop body
CodeScope* scopeLoop = fold.blocks.front();
compilation::ICodeScopeUnit* unitLoop = function->getScopeUnit(scopeLoop);
unitLoop->bindArg(accum, move(accumName));
Value* accumNext = unitLoop->compile();
// * Loop saturation checks
bool flagSaturationTriggered = transformerSaturation->insertSaturationChecks(blockNext, blockAfterLoop, context);
assert(flagSaturationTriggered);
// * computing next iteration state
llvm->builder.SetInsertPoint(blockNext);
accum->addIncoming(accumNext, llvm->builder.GetInsertBlock());
llvm->builder.CreateBr(blockLoop);
// finalization:
llvm->builder.SetInsertPoint(blockAfterLoop);
return accumNext;
}
llvm::Value*
Advanced::compileIf(const Expression& exprIf, const std::string& hintRetVar) {
EXPAND_CONTEXT
//initialization:
const Expression& condExpr = exprIf.getOperands()[0];
llvm::IRBuilder<>& builder = llvm->builder;
//llvm::Type* tyResultType = llvm->toLLVMType(llvm->ast->expandType(exprIf.type));
llvm::BasicBlock *blockAfter = llvm::BasicBlock::Create(llvm::getGlobalContext(), "ifAfter", function->raw);
llvm::BasicBlock *blockTrue = llvm::BasicBlock::Create(llvm::getGlobalContext(), "ifTrue", function->raw);
llvm::BasicBlock *blockFalse = llvm::BasicBlock::Create(llvm::getGlobalContext(), "ifFalse", function->raw);
llvm::Value* cond = scope->process(condExpr);
llvm->builder.CreateCondBr(cond, blockTrue, blockFalse);
builder.SetInsertPoint(blockTrue);
CodeScope* scopeTrue = exprIf.blocks.front();
llvm::Value* resultTrue = function->getScopeUnit(scopeTrue)->compile();
blockTrue = builder.GetInsertBlock();
builder.CreateBr(blockAfter);
builder.SetInsertPoint(blockFalse);
CodeScope* scopeFalse = exprIf.blocks.back();
llvm::Value* resultFalse = function->getScopeUnit(scopeFalse)->compile();
blockFalse = builder.GetInsertBlock();
builder.CreateBr(blockAfter);
builder.SetInsertPoint(blockAfter);
llvm::PHINode *ret = builder.CreatePHI(resultTrue->getType(), 2, NAME("if"));
ret->addIncoming(resultTrue, blockTrue);
ret->addIncoming(resultFalse, blockFalse);
return ret;
}
//TODO Switch: default variant no needed when all possible conditions are considered
llvm::Value*
Advanced::compileSwitch(const Expression& exprSwitch, const std::string& hintRetVar) {
EXPAND_CONTEXT
AST* root = context.pass->man->root;
UNUSED(function);
assert(exprSwitch.operands.size() >= 2);
assert(exprSwitch.operands[1].op == Operator::CASE_DEFAULT && "No default case in Switch Statement");
int countCases = exprSwitch.operands.size() - 1;
llvm::IRBuilder<>& builder = llvm->builder;
llvm::BasicBlock* blockProlog = builder.GetInsertBlock();
llvm::BasicBlock *blockEpilog = llvm::BasicBlock::Create(llvm::getGlobalContext(), "switchAfter", function->raw);
builder.SetInsertPoint(blockEpilog);
llvm::Type* exprSwitchType = llvm->toLLVMType(root->getType(exprSwitch));
llvm::PHINode *ret = builder.CreatePHI(exprSwitchType, countCases, NAME("switch"));
builder.SetInsertPoint(blockProlog);
llvm::Value * conditionSwitch = scope->process(exprSwitch.operands[0]);
llvm::BasicBlock *blockDefault = llvm::BasicBlock::Create(llvm::getGlobalContext(), "caseDefault", function->raw);
llvm::SwitchInst * instructionSwitch = builder.CreateSwitch(conditionSwitch, blockDefault, countCases);
for (int size = exprSwitch.operands.size(), i = 2; i < size; ++i) {
llvm::BasicBlock *blockCase = llvm::BasicBlock::Create(llvm::getGlobalContext(), "case" + std::to_string(i), function->raw);
llvm::Value* condCase = function->getScopeUnit(exprSwitch.operands[i].blocks.front())->compile();
builder.SetInsertPoint(blockCase);
llvm::Value* resultCase = function->getScopeUnit(exprSwitch.operands[i].blocks.back())->compile();
builder.CreateBr(blockEpilog);
ret->addIncoming(resultCase, builder.GetInsertBlock());
builder.SetInsertPoint(blockProlog);
instructionSwitch->addCase(dyn_cast<llvm::ConstantInt>(condCase), blockCase);
}
//compile default block:
builder.SetInsertPoint(blockDefault);
CodeScope* scopeDefault = exprSwitch.operands[1].blocks.front();
llvm::Value* resultDefault = function->getScopeUnit(scopeDefault)->compile();
builder.CreateBr(blockEpilog);
ret->addIncoming(resultDefault, builder.GetInsertBlock());
builder.SetInsertPoint(blockEpilog);
return ret;
}
//TODO recognize cases to make const arrays/stored in global mem/stack alloced.
llvm::Value*
Advanced::compileListAsSolidArray(const Expression &expr, const std::string& hintRetVar) {
EXPAND_CONTEXT
UNUSED(scope);
UNUSED(function);
AST* root = context.pass->man->root;
const size_t& length = expr.getOperands().size();
const Expression& expression = expr;
llvm::Value* zero = ConstantInt::get(tyNum, 0);
llvm::Value* one = ConstantInt::get(tyNum, 1);
ExpandedType typAggrExpanded = root->getType(expression);
assert(typAggrExpanded->__operator == TypeOperator::ARRAY);
llvm::Type* typEl = llvm->toLLVMType(ExpandedType(typAggrExpanded->__operands[0]));
ArrayType* typAggr = (ArrayType*) llvm::ArrayType::get(typEl, length);
llvm::Value* list = llvm->builder.CreateAlloca(typAggr, ConstantInt::get(Type::getInt32Ty(llvm::getGlobalContext()), length, false), hintRetVar);
const std::vector<Expression>& operands = expression.getOperands();
llvm::Value* addrOperand = llvm->builder.CreateGEP(typAggr, list, ArrayRef<Value *>(std::vector<Value*>{zero, zero}));
llvm->builder.CreateStore(scope->process(operands.front()), addrOperand) ;
for (auto i=++operands.begin(); i!=operands.end(); ++i){
addrOperand = llvm->builder.CreateGEP(typEl, addrOperand, ArrayRef<Value *>(std::vector<Value*>{one}));
llvm->builder.CreateStore(scope->process(*i), addrOperand) ;
}
return list;
// Value* listDest = l.builder.CreateAlloca(typList, ConstantInt::get(typI32, __size), *hintRetVar);
// l.buil1der.CreateMemCpy(listDest, listSource, __size, 16);
}
llvm::Value*
Advanced::compileConstantStringAsPChar(const string& data, const std::string& hintRetVar) {
EXPAND_CONTEXT
UNUSED(function);
UNUSED(scope);
Type* typPchar = PointerType::getUnqual(Type::getInt8Ty(llvm::getGlobalContext()));
//ArrayType* typStr = (ArrayType*) (llvm->toLLVMType(ExpandedType(TypeAnnotation(tag_array, TypePrimitive::I8, size+1))));
/*
std::vector<Constant *> chars;
chars.reserve(size+1);
for (size_t i=0; i< size; ++i){
chars[i] = ConstantInt::get(typI8, (unsigned char) data[i]);
}
chars[size] = ConstantInt::get(typI8, 0);
*/
Value* rawData = ConstantDataArray::getString(llvm::getGlobalContext(), data);
Value* rawPtrData = llvm->builder.CreateAlloca(rawData->getType(), ConstantInt::get(Type::getInt32Ty(llvm::getGlobalContext()), 1, false));
llvm->builder.CreateStore(rawData, rawPtrData);
return llvm->builder.CreateCast(llvm::Instruction::BitCast, rawPtrData, typPchar, hintRetVar);
}
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