1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
//===- ScopPass.cpp - The base class of Passes that operate on Polly IR ---===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This file contains the definitions of the ScopPass members.
//
//===----------------------------------------------------------------------===//
#include "polly/ScopPass.h"
#include "polly/ScopInfo.h"
#include "llvm/Analysis/BasicAliasAnalysis.h"
#include "llvm/Analysis/GlobalsModRef.h"
#include "llvm/Analysis/LazyBlockFrequencyInfo.h"
#include "llvm/Analysis/LazyBranchProbabilityInfo.h"
#include "llvm/Analysis/OptimizationRemarkEmitter.h"
#include "llvm/Analysis/ScalarEvolutionAliasAnalysis.h"
#include "llvm/Analysis/TargetTransformInfo.h"
using namespace llvm;
using namespace polly;
bool ScopPass::runOnRegion(Region *R, RGPassManager &RGM) {
S = nullptr;
if (skipRegion(*R))
return false;
if ((S = getAnalysis<ScopInfoRegionPass>().getScop()))
return runOnScop(*S);
return false;
}
void ScopPass::print(raw_ostream &OS, const Module *M) const {
if (S)
printScop(OS, *S);
}
void ScopPass::getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<ScopInfoRegionPass>();
AU.addPreserved<AAResultsWrapperPass>();
AU.addPreserved<BasicAAWrapperPass>();
AU.addPreserved<LoopInfoWrapperPass>();
AU.addPreserved<DominatorTreeWrapperPass>();
AU.addPreserved<GlobalsAAWrapperPass>();
AU.addPreserved<ScopDetectionWrapperPass>();
AU.addPreserved<ScalarEvolutionWrapperPass>();
AU.addPreserved<SCEVAAWrapperPass>();
AU.addPreserved<OptimizationRemarkEmitterWrapperPass>();
AU.addPreserved<LazyBlockFrequencyInfoPass>();
AU.addPreserved<LazyBranchProbabilityInfoPass>();
AU.addPreserved<RegionInfoPass>();
AU.addPreserved<ScopInfoRegionPass>();
AU.addPreserved<TargetTransformInfoWrapperPass>();
}
namespace polly {
template class OwningInnerAnalysisManagerProxy<ScopAnalysisManager, Function>;
}
namespace llvm {
template class PassManager<Scop, ScopAnalysisManager,
ScopStandardAnalysisResults &, SPMUpdater &>;
template class InnerAnalysisManagerProxy<ScopAnalysisManager, Function>;
template class OuterAnalysisManagerProxy<FunctionAnalysisManager, Scop,
ScopStandardAnalysisResults &>;
template <>
PreservedAnalyses
PassManager<Scop, ScopAnalysisManager, ScopStandardAnalysisResults &,
SPMUpdater &>::run(Scop &S, ScopAnalysisManager &AM,
ScopStandardAnalysisResults &AR, SPMUpdater &U) {
auto PA = PreservedAnalyses::all();
for (auto &Pass : Passes) {
auto PassPA = Pass->run(S, AM, AR, U);
AM.invalidate(S, PassPA);
PA.intersect(std::move(PassPA));
}
// All analyses for 'this' Scop have been invalidated above.
// If ScopPasses affect break other scops they have to propagate this
// information through the updater
PA.preserveSet<AllAnalysesOn<Scop>>();
return PA;
}
bool ScopAnalysisManagerFunctionProxy::Result::invalidate(
Function &F, const PreservedAnalyses &PA,
FunctionAnalysisManager::Invalidator &Inv) {
// First, check whether our ScopInfo is about to be invalidated
auto PAC = PA.getChecker<ScopAnalysisManagerFunctionProxy>();
if (!(PAC.preserved() || PAC.preservedSet<AllAnalysesOn<Function>>()) ||
Inv.invalidate<ScopInfoAnalysis>(F, PA) ||
Inv.invalidate<ScalarEvolutionAnalysis>(F, PA) ||
Inv.invalidate<LoopAnalysis>(F, PA) ||
Inv.invalidate<DominatorTreeAnalysis>(F, PA)) {
// As everything depends on ScopInfo, we must drop all existing results
for (auto &S : *SI)
if (auto *scop = S.second.get())
if (InnerAM)
InnerAM->clear(*scop, scop->getName());
InnerAM = nullptr;
return true; // Invalidate the proxy result as well.
}
bool allPreserved = PA.allAnalysesInSetPreserved<AllAnalysesOn<Scop>>();
// Invalidate all non-preserved analyses
// Even if all analyses were preserved, we still need to run deferred
// invalidation
for (auto &S : *SI) {
Optional<PreservedAnalyses> InnerPA;
auto *scop = S.second.get();
if (!scop)
continue;
if (auto *OuterProxy =
InnerAM->getCachedResult<FunctionAnalysisManagerScopProxy>(*scop)) {
for (const auto &InvPair : OuterProxy->getOuterInvalidations()) {
auto *OuterAnalysisID = InvPair.first;
const auto &InnerAnalysisIDs = InvPair.second;
if (Inv.invalidate(OuterAnalysisID, F, PA)) {
if (!InnerPA)
InnerPA = PA;
for (auto *InnerAnalysisID : InnerAnalysisIDs)
InnerPA->abandon(InnerAnalysisID);
}
}
if (InnerPA) {
InnerAM->invalidate(*scop, *InnerPA);
continue;
}
}
if (!allPreserved)
InnerAM->invalidate(*scop, PA);
}
return false; // This proxy is still valid
}
template <>
ScopAnalysisManagerFunctionProxy::Result
ScopAnalysisManagerFunctionProxy::run(Function &F,
FunctionAnalysisManager &FAM) {
return Result(*InnerAM, FAM.getResult<ScopInfoAnalysis>(F));
}
} // namespace llvm
namespace polly {
template <>
OwningScopAnalysisManagerFunctionProxy::Result
OwningScopAnalysisManagerFunctionProxy::run(Function &F,
FunctionAnalysisManager &FAM) {
return Result(InnerAM, FAM.getResult<ScopInfoAnalysis>(F));
}
} // namespace polly
|
