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
|
//===- CGSCCPassManager.cpp - Managing & running CGSCC passes -------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Analysis/CGSCCPassManager.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
using namespace llvm;
static cl::opt<bool>
DebugPM("debug-cgscc-pass-manager", cl::Hidden,
cl::desc("Print CGSCC pass management debugging information"));
PreservedAnalyses CGSCCPassManager::run(LazyCallGraph::SCC &C,
CGSCCAnalysisManager *AM) {
PreservedAnalyses PA = PreservedAnalyses::all();
if (DebugPM)
dbgs() << "Starting CGSCC pass manager run.\n";
for (unsigned Idx = 0, Size = Passes.size(); Idx != Size; ++Idx) {
if (DebugPM)
dbgs() << "Running CGSCC pass: " << Passes[Idx]->name() << "\n";
PreservedAnalyses PassPA = Passes[Idx]->run(C, AM);
// If we have an active analysis manager at this level we want to ensure we
// update it as each pass runs and potentially invalidates analyses. We
// also update the preserved set of analyses based on what analyses we have
// already handled the invalidation for here and don't need to invalidate
// when finished.
if (AM)
PassPA = AM->invalidate(C, std::move(PassPA));
// Finally, we intersect the final preserved analyses to compute the
// aggregate preserved set for this pass manager.
PA.intersect(std::move(PassPA));
}
if (DebugPM)
dbgs() << "Finished CGSCC pass manager run.\n";
return PA;
}
char CGSCCAnalysisManagerModuleProxy::PassID;
CGSCCAnalysisManagerModuleProxy::Result
CGSCCAnalysisManagerModuleProxy::run(Module &M) {
assert(CGAM->empty() && "CGSCC analyses ran prior to the module proxy!");
return Result(*CGAM);
}
CGSCCAnalysisManagerModuleProxy::Result::~Result() {
// Clear out the analysis manager if we're being destroyed -- it means we
// didn't even see an invalidate call when we got invalidated.
CGAM->clear();
}
bool CGSCCAnalysisManagerModuleProxy::Result::invalidate(
Module &M, const PreservedAnalyses &PA) {
// If this proxy isn't marked as preserved, then we can't even invalidate
// individual CGSCC analyses, there may be an invalid set of SCC objects in
// the cache making it impossible to incrementally preserve them.
// Just clear the entire manager.
if (!PA.preserved(ID()))
CGAM->clear();
// Return false to indicate that this result is still a valid proxy.
return false;
}
char ModuleAnalysisManagerCGSCCProxy::PassID;
char FunctionAnalysisManagerCGSCCProxy::PassID;
FunctionAnalysisManagerCGSCCProxy::Result
FunctionAnalysisManagerCGSCCProxy::run(LazyCallGraph::SCC &C) {
assert(FAM->empty() && "Function analyses ran prior to the CGSCC proxy!");
return Result(*FAM);
}
FunctionAnalysisManagerCGSCCProxy::Result::~Result() {
// Clear out the analysis manager if we're being destroyed -- it means we
// didn't even see an invalidate call when we got invalidated.
FAM->clear();
}
bool FunctionAnalysisManagerCGSCCProxy::Result::invalidate(
LazyCallGraph::SCC &C, const PreservedAnalyses &PA) {
// If this proxy isn't marked as preserved, then we can't even invalidate
// individual function analyses, there may be an invalid set of Function
// objects in the cache making it impossible to incrementally preserve them.
// Just clear the entire manager.
if (!PA.preserved(ID()))
FAM->clear();
// Return false to indicate that this result is still a valid proxy.
return false;
}
char CGSCCAnalysisManagerFunctionProxy::PassID;
|
