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Fix a memory leak in if_delgroups() introduced in r334118.
[FreeBSD/FreeBSD.git] / contrib / llvm-project / llvm / lib / MCA / Context.cpp
1 //===---------------------------- Context.cpp -------------------*- 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 /// \file
9 ///
10 /// This file defines a class for holding ownership of various simulated
11 /// hardware units.  A Context also provides a utility routine for constructing
12 /// a default out-of-order pipeline with fetch, dispatch, execute, and retire
13 /// stages.
14 ///
15 //===----------------------------------------------------------------------===//
16
17 #include "llvm/MCA/Context.h"
18 #include "llvm/MCA/HardwareUnits/RegisterFile.h"
19 #include "llvm/MCA/HardwareUnits/RetireControlUnit.h"
20 #include "llvm/MCA/HardwareUnits/Scheduler.h"
21 #include "llvm/MCA/Stages/DispatchStage.h"
22 #include "llvm/MCA/Stages/EntryStage.h"
23 #include "llvm/MCA/Stages/ExecuteStage.h"
24 #include "llvm/MCA/Stages/MicroOpQueueStage.h"
25 #include "llvm/MCA/Stages/RetireStage.h"
26
27 namespace llvm {
28 namespace mca {
29
30 std::unique_ptr<Pipeline>
31 Context::createDefaultPipeline(const PipelineOptions &Opts, InstrBuilder &IB,
32                                SourceMgr &SrcMgr) {
33   const MCSchedModel &SM = STI.getSchedModel();
34
35   // Create the hardware units defining the backend.
36   auto RCU = llvm::make_unique<RetireControlUnit>(SM);
37   auto PRF = llvm::make_unique<RegisterFile>(SM, MRI, Opts.RegisterFileSize);
38   auto LSU = llvm::make_unique<LSUnit>(SM, Opts.LoadQueueSize,
39                                        Opts.StoreQueueSize, Opts.AssumeNoAlias);
40   auto HWS = llvm::make_unique<Scheduler>(SM, *LSU);
41
42   // Create the pipeline stages.
43   auto Fetch = llvm::make_unique<EntryStage>(SrcMgr);
44   auto Dispatch = llvm::make_unique<DispatchStage>(STI, MRI, Opts.DispatchWidth,
45                                                    *RCU, *PRF);
46   auto Execute =
47       llvm::make_unique<ExecuteStage>(*HWS, Opts.EnableBottleneckAnalysis);
48   auto Retire = llvm::make_unique<RetireStage>(*RCU, *PRF);
49
50   // Pass the ownership of all the hardware units to this Context.
51   addHardwareUnit(std::move(RCU));
52   addHardwareUnit(std::move(PRF));
53   addHardwareUnit(std::move(LSU));
54   addHardwareUnit(std::move(HWS));
55
56   // Build the pipeline.
57   auto StagePipeline = llvm::make_unique<Pipeline>();
58   StagePipeline->appendStage(std::move(Fetch));
59   if (Opts.MicroOpQueueSize)
60     StagePipeline->appendStage(llvm::make_unique<MicroOpQueueStage>(
61         Opts.MicroOpQueueSize, Opts.DecodersThroughput));
62   StagePipeline->appendStage(std::move(Dispatch));
63   StagePipeline->appendStage(std::move(Execute));
64   StagePipeline->appendStage(std::move(Retire));
65   return StagePipeline;
66 }
67
68 } // namespace mca
69 } // namespace llvm