| 1 | //===- MachineCycleAnalysis.h - Cycle Info for Machine IR -------*- C++ -*-===// |
|---|
| 2 | // |
|---|
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
|---|
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
|---|
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
|---|
| 6 | // |
|---|
| 7 | //===----------------------------------------------------------------------===// |
|---|
| 8 | // |
|---|
| 9 | // This file defines the MachineCycleInfo class, which is a thin wrapper over |
|---|
| 10 | // the Machine IR instance of GenericCycleInfo. |
|---|
| 11 | // |
|---|
| 12 | //===----------------------------------------------------------------------===// |
|---|
| 13 | |
|---|
| 14 | #ifndef LLVM_CODEGEN_MACHINECYCLEANALYSIS_H |
|---|
| 15 | #define LLVM_CODEGEN_MACHINECYCLEANALYSIS_H |
|---|
| 16 | |
|---|
| 17 | #include "llvm/ADT/GenericCycleInfo.h" |
|---|
| 18 | #include "llvm/CodeGen/MachineFunctionPass.h" |
|---|
| 19 | #include "llvm/CodeGen/MachineSSAContext.h" |
|---|
| 20 | |
|---|
| 21 | namespace llvm { |
|---|
| 22 | |
|---|
| 23 | using MachineCycleInfo = GenericCycleInfo<MachineSSAContext>; |
|---|
| 24 | using MachineCycle = MachineCycleInfo::CycleT; |
|---|
| 25 | |
|---|
| 26 | /// Legacy analysis pass which computes a \ref MachineCycleInfo. |
|---|
| 27 | class MachineCycleInfoWrapperPass : public MachineFunctionPass { |
|---|
| 28 | MachineFunction *F = nullptr; |
|---|
| 29 | MachineCycleInfo CI; |
|---|
| 30 | |
|---|
| 31 | public: |
|---|
| 32 | static char ID; |
|---|
| 33 | |
|---|
| 34 | MachineCycleInfoWrapperPass(); |
|---|
| 35 | |
|---|
| 36 | MachineCycleInfo &getCycleInfo() { return CI; } |
|---|
| 37 | const MachineCycleInfo &getCycleInfo() const { return CI; } |
|---|
| 38 | |
|---|
| 39 | bool runOnMachineFunction(MachineFunction &F) override; |
|---|
| 40 | void getAnalysisUsage(AnalysisUsage &AU) const override; |
|---|
| 41 | void releaseMemory() override; |
|---|
| 42 | void print(raw_ostream &OS, const Module *M = nullptr) const override; |
|---|
| 43 | }; |
|---|
| 44 | |
|---|
| 45 | // TODO: add this function to GenericCycle template after implementing IR |
|---|
| 46 | // version. |
|---|
| 47 | bool isCycleInvariant(const MachineCycle *Cycle, MachineInstr &I); |
|---|
| 48 | |
|---|
| 49 | } // end namespace llvm |
|---|
| 50 | |
|---|
| 51 | #endif // LLVM_CODEGEN_MACHINECYCLEANALYSIS_H |
|---|
| 52 | |
|---|
