blob: 100bc93a06d56bf77b696c6cf1633442d26cb7bc (
plain)
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
|
//===- CodegenCleanup.cpp -------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "polly/CodeGen/CodegenCleanup.h"
#include "llvm/Analysis/ScopedNoAliasAA.h"
#include "llvm/Analysis/TypeBasedAliasAnalysis.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/LegacyPassManager.h"
#include "llvm/Pass.h"
#include "llvm/Support/Debug.h"
#include "llvm/Transforms/InstCombine/InstCombine.h"
#include "llvm/Transforms/Scalar.h"
#include "llvm/Transforms/Scalar/GVN.h"
#include "llvm/Transforms/Scalar/SimpleLoopUnswitch.h"
#include "llvm/Transforms/Utils.h"
#define DEBUG_TYPE "polly-cleanup"
using namespace llvm;
using namespace polly;
namespace {
class CodegenCleanup final : public FunctionPass {
private:
CodegenCleanup(const CodegenCleanup &) = delete;
const CodegenCleanup &operator=(const CodegenCleanup &) = delete;
llvm::legacy::FunctionPassManager *FPM;
public:
static char ID;
explicit CodegenCleanup() : FunctionPass(ID), FPM(nullptr) {}
/// @name FunctionPass interface
//@{
void getAnalysisUsage(llvm::AnalysisUsage &AU) const override {}
bool doInitialization(Module &M) override {
assert(!FPM);
FPM = new llvm::legacy::FunctionPassManager(&M);
// TODO: How to make parent passes discoverable?
// TODO: Should be sensitive to compiler options in PassManagerBuilder, to
// which we do not have access here.
FPM->add(createScopedNoAliasAAWrapperPass());
FPM->add(createTypeBasedAAWrapperPass());
FPM->add(createAAResultsWrapperPass());
// TODO: These are non-conditional passes that run between
// EP_ModuleOptimizerEarly and EP_VectorizerStart just to ensure we do not
// miss any optimization that would have run after Polly with
// -polly-position=early. This can probably be reduced to a more compact set
// of passes.
FPM->add(createCFGSimplificationPass());
FPM->add(createSROAPass());
FPM->add(createEarlyCSEPass());
FPM->add(createPromoteMemoryToRegisterPass());
FPM->add(createInstructionCombiningPass(true));
FPM->add(createCFGSimplificationPass());
FPM->add(createSROAPass());
FPM->add(createEarlyCSEPass(true));
FPM->add(createSpeculativeExecutionIfHasBranchDivergencePass());
FPM->add(createJumpThreadingPass());
FPM->add(createCorrelatedValuePropagationPass());
FPM->add(createCFGSimplificationPass());
FPM->add(createInstructionCombiningPass(true));
FPM->add(createLibCallsShrinkWrapPass());
FPM->add(createTailCallEliminationPass());
FPM->add(createCFGSimplificationPass());
FPM->add(createReassociatePass());
FPM->add(createLoopRotatePass(-1));
FPM->add(createGVNPass());
FPM->add(createLICMPass());
FPM->add(createSimpleLoopUnswitchLegacyPass());
FPM->add(createCFGSimplificationPass());
FPM->add(createInstructionCombiningPass(true));
FPM->add(createIndVarSimplifyPass());
FPM->add(createLoopIdiomPass());
FPM->add(createLoopDeletionPass());
FPM->add(createCFGSimplificationPass());
FPM->add(createSimpleLoopUnrollPass(3));
FPM->add(createMergedLoadStoreMotionPass());
FPM->add(createGVNPass());
FPM->add(createMemCpyOptPass());
FPM->add(createSCCPPass());
FPM->add(createBitTrackingDCEPass());
FPM->add(createInstructionCombiningPass(true));
FPM->add(createJumpThreadingPass());
FPM->add(createCorrelatedValuePropagationPass());
FPM->add(createDeadStoreEliminationPass());
FPM->add(createLICMPass());
FPM->add(createAggressiveDCEPass());
FPM->add(createCFGSimplificationPass());
FPM->add(createInstructionCombiningPass(true));
FPM->add(createFloat2IntPass());
return FPM->doInitialization();
}
bool doFinalization(Module &M) override {
bool Result = FPM->doFinalization();
delete FPM;
FPM = nullptr;
return Result;
}
bool runOnFunction(llvm::Function &F) override {
if (!F.hasFnAttribute("polly-optimized")) {
LLVM_DEBUG(
dbgs() << F.getName()
<< ": Skipping cleanup because Polly did not optimize it.");
return false;
}
LLVM_DEBUG(dbgs() << F.getName() << ": Running codegen cleanup...");
return FPM->run(F);
}
//@}
};
char CodegenCleanup::ID;
} // namespace
FunctionPass *polly::createCodegenCleanupPass() { return new CodegenCleanup(); }
INITIALIZE_PASS_BEGIN(CodegenCleanup, "polly-cleanup",
"Polly - Cleanup after code generation", false, false)
INITIALIZE_PASS_END(CodegenCleanup, "polly-cleanup",
"Polly - Cleanup after code generation", false, false)
|
