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
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
//===- FileCheck.cpp - Check that File's Contents match what is expected --===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// FileCheck does a line-by line check of a file that validates whether it
// contains the expected content. This is useful for regression tests etc.
//
// This program exits with an exit status of 2 on error, exit status of 0 if
// the file matched the expected contents, and exit status of 1 if it did not
// contain the expected contents.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/InitLLVM.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/FileCheck.h"
using namespace llvm;
static cl::opt<std::string>
CheckFilename(cl::Positional, cl::desc("<check-file>"), cl::Required);
static cl::opt<std::string>
InputFilename("input-file", cl::desc("File to check (defaults to stdin)"),
cl::init("-"), cl::value_desc("filename"));
static cl::list<std::string> CheckPrefixes(
"check-prefix",
cl::desc("Prefix to use from check file (defaults to 'CHECK')"));
static cl::alias CheckPrefixesAlias(
"check-prefixes", cl::aliasopt(CheckPrefixes), cl::CommaSeparated,
cl::NotHidden,
cl::desc(
"Alias for -check-prefix permitting multiple comma separated values"));
static cl::opt<bool> NoCanonicalizeWhiteSpace(
"strict-whitespace",
cl::desc("Do not treat all horizontal whitespace as equivalent"));
static cl::list<std::string> ImplicitCheckNot(
"implicit-check-not",
cl::desc("Add an implicit negative check with this pattern to every\n"
"positive check. This can be used to ensure that no instances of\n"
"this pattern occur which are not matched by a positive pattern"),
cl::value_desc("pattern"));
static cl::list<std::string> GlobalDefines("D", cl::Prefix,
cl::desc("Define a variable to be used in capture patterns."),
cl::value_desc("VAR=VALUE"));
static cl::opt<bool> AllowEmptyInput(
"allow-empty", cl::init(false),
cl::desc("Allow the input file to be empty. This is useful when making\n"
"checks that some error message does not occur, for example."));
static cl::opt<bool> MatchFullLines(
"match-full-lines", cl::init(false),
cl::desc("Require all positive matches to cover an entire input line.\n"
"Allows leading and trailing whitespace if --strict-whitespace\n"
"is not also passed."));
static cl::opt<bool> EnableVarScope(
"enable-var-scope", cl::init(false),
cl::desc("Enables scope for regex variables. Variables with names that\n"
"do not start with '$' will be reset at the beginning of\n"
"each CHECK-LABEL block."));
static cl::opt<bool> AllowDeprecatedDagOverlap(
"allow-deprecated-dag-overlap", cl::init(false),
cl::desc("Enable overlapping among matches in a group of consecutive\n"
"CHECK-DAG directives. This option is deprecated and is only\n"
"provided for convenience as old tests are migrated to the new\n"
"non-overlapping CHECK-DAG implementation.\n"));
static cl::opt<bool> Verbose("v", cl::init(false),
cl::desc("Print directive pattern matches.\n"));
static cl::opt<bool> VerboseVerbose(
"vv", cl::init(false),
cl::desc("Print information helpful in diagnosing internal FileCheck\n"
"issues. Implies -v.\n"));
static const char * DumpInputEnv = "FILECHECK_DUMP_INPUT_ON_FAILURE";
static cl::opt<bool> DumpInputOnFailure(
"dump-input-on-failure", cl::init(std::getenv(DumpInputEnv)),
cl::desc("Dump original input to stderr before failing.\n"
"The value can be also controlled using\n"
"FILECHECK_DUMP_INPUT_ON_FAILURE environment variable.\n"));
typedef cl::list<std::string>::const_iterator prefix_iterator;
static void DumpCommandLine(int argc, char **argv) {
errs() << "FileCheck command line: ";
for (int I = 0; I < argc; I++)
errs() << " " << argv[I];
errs() << "\n";
}
int main(int argc, char **argv) {
InitLLVM X(argc, argv);
cl::ParseCommandLineOptions(argc, argv);
FileCheckRequest Req;
for (auto Prefix : CheckPrefixes)
Req.CheckPrefixes.push_back(Prefix);
for (auto CheckNot : ImplicitCheckNot)
Req.ImplicitCheckNot.push_back(CheckNot);
for (auto G : GlobalDefines)
Req.GlobalDefines.push_back(G);
Req.AllowEmptyInput = AllowEmptyInput;
Req.EnableVarScope = EnableVarScope;
Req.AllowDeprecatedDagOverlap = AllowDeprecatedDagOverlap;
Req.Verbose = Verbose;
Req.VerboseVerbose = VerboseVerbose;
Req.NoCanonicalizeWhiteSpace = NoCanonicalizeWhiteSpace;
Req.MatchFullLines = MatchFullLines;
if (VerboseVerbose)
Req.Verbose = true;
FileCheck FC(Req);
if (!FC.ValidateCheckPrefixes()) {
errs() << "Supplied check-prefix is invalid! Prefixes must be unique and "
"start with a letter and contain only alphanumeric characters, "
"hyphens and underscores\n";
return 2;
}
Regex PrefixRE = FC.buildCheckPrefixRegex();
std::string REError;
if (!PrefixRE.isValid(REError)) {
errs() << "Unable to combine check-prefix strings into a prefix regular "
"expression! This is likely a bug in FileCheck's verification of "
"the check-prefix strings. Regular expression parsing failed "
"with the following error: "
<< REError << "\n";
return 2;
}
SourceMgr SM;
// Read the expected strings from the check file.
ErrorOr<std::unique_ptr<MemoryBuffer>> CheckFileOrErr =
MemoryBuffer::getFileOrSTDIN(CheckFilename);
if (std::error_code EC = CheckFileOrErr.getError()) {
errs() << "Could not open check file '" << CheckFilename
<< "': " << EC.message() << '\n';
return 2;
}
MemoryBuffer &CheckFile = *CheckFileOrErr.get();
SmallString<4096> CheckFileBuffer;
StringRef CheckFileText = FC.CanonicalizeFile(CheckFile, CheckFileBuffer);
SM.AddNewSourceBuffer(MemoryBuffer::getMemBuffer(
CheckFileText, CheckFile.getBufferIdentifier()),
SMLoc());
std::vector<FileCheckString> CheckStrings;
if (FC.ReadCheckFile(SM, CheckFileText, PrefixRE, CheckStrings))
return 2;
// Open the file to check and add it to SourceMgr.
ErrorOr<std::unique_ptr<MemoryBuffer>> InputFileOrErr =
MemoryBuffer::getFileOrSTDIN(InputFilename);
if (std::error_code EC = InputFileOrErr.getError()) {
errs() << "Could not open input file '" << InputFilename
<< "': " << EC.message() << '\n';
return 2;
}
MemoryBuffer &InputFile = *InputFileOrErr.get();
if (InputFile.getBufferSize() == 0 && !AllowEmptyInput) {
errs() << "FileCheck error: '" << InputFilename << "' is empty.\n";
DumpCommandLine(argc, argv);
return 2;
}
SmallString<4096> InputFileBuffer;
StringRef InputFileText = FC.CanonicalizeFile(InputFile, InputFileBuffer);
SM.AddNewSourceBuffer(MemoryBuffer::getMemBuffer(
InputFileText, InputFile.getBufferIdentifier()),
SMLoc());
int ExitCode =
FC.CheckInput(SM, InputFileText, CheckStrings) ? EXIT_SUCCESS : 1;
if (ExitCode == 1 && DumpInputOnFailure)
errs() << "Full input was:\n<<<<<<\n" << InputFileText << "\n>>>>>>\n";
return ExitCode;
}
|
