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
|
//===- DeltaManager.cpp - Runs Delta Passes to reduce Input ---------------===//
//
// 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 calls each specialized Delta pass in order to reduce the input IR
// file.
//
//===----------------------------------------------------------------------===//
#include "DeltaManager.h"
#include "ReducerWorkItem.h"
#include "TestRunner.h"
#include "deltas/Delta.h"
#include "deltas/ReduceAliases.h"
#include "deltas/ReduceArguments.h"
#include "deltas/ReduceAttributes.h"
#include "deltas/ReduceBasicBlocks.h"
#include "deltas/ReduceFunctionBodies.h"
#include "deltas/ReduceFunctions.h"
#include "deltas/ReduceGlobalObjects.h"
#include "deltas/ReduceGlobalValues.h"
#include "deltas/ReduceGlobalVarInitializers.h"
#include "deltas/ReduceGlobalVars.h"
#include "deltas/ReduceIRReferences.h"
#include "deltas/ReduceInstructionFlagsMIR.h"
#include "deltas/ReduceInstructions.h"
#include "deltas/ReduceInstructionsMIR.h"
#include "deltas/ReduceMetadata.h"
#include "deltas/ReduceModuleData.h"
#include "deltas/ReduceOperandBundles.h"
#include "deltas/ReduceOperands.h"
#include "deltas/ReduceOperandsSkip.h"
#include "deltas/ReduceOperandsToArgs.h"
#include "deltas/ReduceRegisterDefs.h"
#include "deltas/ReduceRegisterMasks.h"
#include "deltas/ReduceRegisterUses.h"
#include "deltas/ReduceSpecialGlobals.h"
#include "deltas/ReduceVirtualRegisters.h"
#include "deltas/SimplifyInstructions.h"
#include "llvm/Support/CommandLine.h"
using namespace llvm;
extern cl::OptionCategory LLVMReduceOptions;
static cl::opt<std::string>
DeltaPasses("delta-passes",
cl::desc("Delta passes to run, separated by commas. By "
"default, run all delta passes."),
cl::cat(LLVMReduceOptions));
#define DELTA_PASSES \
do { \
DELTA_PASS("special-globals", reduceSpecialGlobalsDeltaPass) \
DELTA_PASS("aliases", reduceAliasesDeltaPass) \
DELTA_PASS("function-bodies", reduceFunctionBodiesDeltaPass) \
DELTA_PASS("functions", reduceFunctionsDeltaPass) \
DELTA_PASS("basic-blocks", reduceBasicBlocksDeltaPass) \
DELTA_PASS("global-values", reduceGlobalValuesDeltaPass) \
DELTA_PASS("global-objects", reduceGlobalObjectsDeltaPass) \
DELTA_PASS("global-initializers", reduceGlobalsInitializersDeltaPass) \
DELTA_PASS("global-variables", reduceGlobalsDeltaPass) \
DELTA_PASS("metadata", reduceMetadataDeltaPass) \
DELTA_PASS("arguments", reduceArgumentsDeltaPass) \
DELTA_PASS("instructions", reduceInstructionsDeltaPass) \
DELTA_PASS("simplify-instructions", simplifyInstructionsDeltaPass) \
DELTA_PASS("operands-zero", reduceOperandsZeroDeltaPass) \
DELTA_PASS("operands-one", reduceOperandsOneDeltaPass) \
DELTA_PASS("operands-nan", reduceOperandsNaNDeltaPass) \
DELTA_PASS("operands-to-args", reduceOperandsToArgsDeltaPass) \
DELTA_PASS("operands-skip", reduceOperandsSkipDeltaPass) \
DELTA_PASS("operand-bundles", reduceOperandBundesDeltaPass) \
DELTA_PASS("attributes", reduceAttributesDeltaPass) \
DELTA_PASS("module-data", reduceModuleDataDeltaPass) \
} while (false)
#define DELTA_PASSES_MIR \
do { \
DELTA_PASS("instructions", reduceInstructionsMIRDeltaPass) \
DELTA_PASS("ir-instruction-references", \
reduceIRInstructionReferencesDeltaPass) \
DELTA_PASS("ir-block-references", reduceIRBlockReferencesDeltaPass) \
DELTA_PASS("ir-function-references", reduceIRFunctionReferencesDeltaPass) \
DELTA_PASS("instruction-flags", reduceInstructionFlagsMIRDeltaPass) \
DELTA_PASS("register-uses", reduceRegisterUsesMIRDeltaPass) \
DELTA_PASS("register-defs", reduceRegisterDefsMIRDeltaPass) \
DELTA_PASS("register-hints", reduceVirtualRegisterHintsDeltaPass) \
DELTA_PASS("register-masks", reduceRegisterMasksMIRDeltaPass) \
} while (false)
static void runAllDeltaPasses(TestRunner &Tester) {
#define DELTA_PASS(NAME, FUNC) FUNC(Tester);
if (Tester.getProgram().isMIR()) {
DELTA_PASSES_MIR;
} else {
DELTA_PASSES;
}
#undef DELTA_PASS
}
static void runDeltaPassName(TestRunner &Tester, StringRef PassName) {
#define DELTA_PASS(NAME, FUNC) \
if (PassName == NAME) { \
FUNC(Tester); \
return; \
}
if (Tester.getProgram().isMIR()) {
DELTA_PASSES_MIR;
} else {
DELTA_PASSES;
}
#undef DELTA_PASS
errs() << "unknown pass \"" << PassName << "\"\n";
exit(1);
}
void llvm::printDeltaPasses(raw_ostream &OS) {
OS << "Delta passes (pass to `--delta-passes=` as a comma separated list):\n";
#define DELTA_PASS(NAME, FUNC) OS << " " << NAME << "\n";
OS << " IR:\n";
DELTA_PASSES;
OS << " MIR:\n";
DELTA_PASSES_MIR;
#undef DELTA_PASS
}
void llvm::runDeltaPasses(TestRunner &Tester, int MaxPassIterations) {
uint64_t OldComplexity = Tester.getProgram().getComplexityScore();
for (int Iter = 0; Iter < MaxPassIterations; ++Iter) {
if (DeltaPasses.empty()) {
runAllDeltaPasses(Tester);
} else {
StringRef Passes = DeltaPasses;
while (!Passes.empty()) {
auto Split = Passes.split(",");
runDeltaPassName(Tester, Split.first);
Passes = Split.second;
}
}
uint64_t NewComplexity = Tester.getProgram().getComplexityScore();
if (NewComplexity >= OldComplexity)
break;
OldComplexity = NewComplexity;
}
}
|
