llvm/polly/lib/Transform/CodePreparation.cpp

//===---- CodePreparation.cpp - Code preparation for Scop Detection -------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// The Polly code preparation pass is executed before SCoP detection. Its
// currently only splits the entry block of the SCoP to make room for alloc
// instructions as they are generated during code generation.
//
// XXX: In the future, we should remove the need for this pass entirely and
// instead add this spitting to the code generation pass.
//
//===----------------------------------------------------------------------===//

#include "polly/CodePreparation.h"
#include "polly/LinkAllPasses.h"
#include "polly/Support/ScopHelper.h"
#include "llvm/Analysis/DominanceFrontier.h"
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/Analysis/RegionInfo.h"
#include "llvm/Analysis/ScalarEvolution.h"
#include "llvm/InitializePasses.h"

usingnamespacellvm;
usingnamespacepolly;

namespace {

/// Prepare the IR for the scop detection.
///
class CodePreparation final : public FunctionPass { … };
} // namespace

PreservedAnalyses CodePreparationPass::run(Function &F,
                                           FunctionAnalysisManager &FAM) { … }

void CodePreparation::clear() { … }

CodePreparation::~CodePreparation() { … }

void CodePreparation::getAnalysisUsage(AnalysisUsage &AU) const { … }

bool CodePreparation::runOnFunction(Function &F) { … }

void CodePreparation::releaseMemory() { … }

void CodePreparation::print(raw_ostream &OS, const Module *) const { … }

char CodePreparation::ID = …;
char &polly::CodePreparationID = …;

Pass *polly::createCodePreparationPass() { … }

INITIALIZE_PASS_BEGIN(CodePreparation, "polly-prepare",
                      "Polly - Prepare code for polly", false, false)
INITIALIZE_PASS_DEPENDENCY(LoopInfoWrapperPass)
INITIALIZE_PASS_END(CodePreparation, "polly-prepare",
                    "Polly - Prepare code for polly", false, false)