mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 11:13:28 +01:00
094f90bc65
Simplify things a bit by removing unnecessary full type qualification. This also happens to avoid a build break with now-unsupported Visual Studio 2015. Differential Review: https://reviews.llvm.org/D64588 llvm-svn: 365913
90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
//===- IteratedDominanceFrontier.h - Calculate IDF --------------*- C++ -*-===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_ANALYSIS_IDF_H
|
|
#define LLVM_ANALYSIS_IDF_H
|
|
|
|
#include "llvm/IR/CFGDiff.h"
|
|
#include "llvm/Support/GenericIteratedDominanceFrontier.h"
|
|
|
|
namespace llvm {
|
|
|
|
class BasicBlock;
|
|
|
|
namespace IDFCalculatorDetail {
|
|
|
|
/// Specialization for BasicBlock for the optional use of GraphDiff.
|
|
template <bool IsPostDom> struct ChildrenGetterTy<BasicBlock, IsPostDom> {
|
|
using NodeRef = BasicBlock *;
|
|
using ChildrenTy = SmallVector<BasicBlock *, 8>;
|
|
|
|
ChildrenGetterTy() = default;
|
|
ChildrenGetterTy(const GraphDiff<BasicBlock *, IsPostDom> *GD) : GD(GD) {
|
|
assert(GD);
|
|
}
|
|
|
|
ChildrenTy get(const NodeRef &N);
|
|
|
|
const GraphDiff<BasicBlock *, IsPostDom> *GD = nullptr;
|
|
};
|
|
|
|
} // end of namespace IDFCalculatorDetail
|
|
|
|
template <bool IsPostDom>
|
|
class IDFCalculator final : public IDFCalculatorBase<BasicBlock, IsPostDom> {
|
|
public:
|
|
using IDFCalculatorBase =
|
|
typename llvm::IDFCalculatorBase<BasicBlock, IsPostDom>;
|
|
using ChildrenGetterTy = typename IDFCalculatorBase::ChildrenGetterTy;
|
|
|
|
IDFCalculator(DominatorTreeBase<BasicBlock, IsPostDom> &DT)
|
|
: IDFCalculatorBase(DT) {}
|
|
|
|
IDFCalculator(DominatorTreeBase<BasicBlock, IsPostDom> &DT,
|
|
const GraphDiff<BasicBlock *, IsPostDom> *GD)
|
|
: IDFCalculatorBase(DT, ChildrenGetterTy(GD)) {
|
|
assert(GD);
|
|
}
|
|
};
|
|
|
|
using ForwardIDFCalculator = IDFCalculator<false>;
|
|
using ReverseIDFCalculator = IDFCalculator<true>;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Implementation.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
namespace IDFCalculatorDetail {
|
|
|
|
template <bool IsPostDom>
|
|
typename ChildrenGetterTy<BasicBlock, IsPostDom>::ChildrenTy
|
|
ChildrenGetterTy<BasicBlock, IsPostDom>::get(const NodeRef &N) {
|
|
|
|
using OrderedNodeTy =
|
|
typename IDFCalculatorBase<BasicBlock, IsPostDom>::OrderedNodeTy;
|
|
|
|
if (!GD) {
|
|
auto Children = children<OrderedNodeTy>(N);
|
|
return {Children.begin(), Children.end()};
|
|
}
|
|
|
|
using SnapShotBBPairTy =
|
|
std::pair<const GraphDiff<BasicBlock *, IsPostDom> *, OrderedNodeTy>;
|
|
|
|
ChildrenTy Ret;
|
|
for (const auto &SnapShotBBPair : children<SnapShotBBPairTy>({GD, N}))
|
|
Ret.emplace_back(SnapShotBBPair.second);
|
|
return Ret;
|
|
}
|
|
|
|
} // end of namespace IDFCalculatorDetail
|
|
|
|
} // end of namespace llvm
|
|
|
|
#endif
|