mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 04:02:41 +01:00
fc07484cd4
Summary: We can use the template parameter `IsPostDom` to pick an appropriate SmallVector size to store DomTree roots for dominators and postdominators. Before, the code would always allocate memory with `std::vector`. Reviewers: dberlin, davide, sanjoy, grosser Reviewed By: grosser Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D35636 llvm-svn: 309148
87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
//=- llvm/CodeGen/MachineDominators.h ----------------------------*- C++ -*-==//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file exposes interfaces to post dominance information for
|
|
// target-specific code.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_CODEGEN_MACHINEPOSTDOMINATORS_H
|
|
#define LLVM_CODEGEN_MACHINEPOSTDOMINATORS_H
|
|
|
|
#include "llvm/CodeGen/MachineDominators.h"
|
|
#include "llvm/CodeGen/MachineFunctionPass.h"
|
|
|
|
namespace llvm {
|
|
|
|
///
|
|
/// PostDominatorTree Class - Concrete subclass of DominatorTree that is used
|
|
/// to compute the post-dominator tree.
|
|
///
|
|
struct MachinePostDominatorTree : public MachineFunctionPass {
|
|
private:
|
|
PostDomTreeBase<MachineBasicBlock> *DT;
|
|
|
|
public:
|
|
static char ID;
|
|
|
|
MachinePostDominatorTree();
|
|
|
|
~MachinePostDominatorTree() override;
|
|
|
|
FunctionPass *createMachinePostDominatorTreePass();
|
|
|
|
const SmallVectorImpl<MachineBasicBlock *> &getRoots() const {
|
|
return DT->getRoots();
|
|
}
|
|
|
|
MachineDomTreeNode *getRootNode() const {
|
|
return DT->getRootNode();
|
|
}
|
|
|
|
MachineDomTreeNode *operator[](MachineBasicBlock *BB) const {
|
|
return DT->getNode(BB);
|
|
}
|
|
|
|
MachineDomTreeNode *getNode(MachineBasicBlock *BB) const {
|
|
return DT->getNode(BB);
|
|
}
|
|
|
|
bool dominates(const MachineDomTreeNode *A,
|
|
const MachineDomTreeNode *B) const {
|
|
return DT->dominates(A, B);
|
|
}
|
|
|
|
bool dominates(const MachineBasicBlock *A, const MachineBasicBlock *B) const {
|
|
return DT->dominates(A, B);
|
|
}
|
|
|
|
bool properlyDominates(const MachineDomTreeNode *A,
|
|
const MachineDomTreeNode *B) const {
|
|
return DT->properlyDominates(A, B);
|
|
}
|
|
|
|
bool properlyDominates(const MachineBasicBlock *A,
|
|
const MachineBasicBlock *B) const {
|
|
return DT->properlyDominates(A, B);
|
|
}
|
|
|
|
MachineBasicBlock *findNearestCommonDominator(MachineBasicBlock *A,
|
|
MachineBasicBlock *B) {
|
|
return DT->findNearestCommonDominator(A, B);
|
|
}
|
|
|
|
bool runOnMachineFunction(MachineFunction &MF) override;
|
|
void getAnalysisUsage(AnalysisUsage &AU) const override;
|
|
void print(llvm::raw_ostream &OS, const Module *M = nullptr) const override;
|
|
};
|
|
} //end of namespace llvm
|
|
|
|
#endif
|