source: icGREP/icgrep-devel/llvm-3.8.0.src/test/lit.cfg

Last change on this file was 5027, checked in by cameron, 3 years ago

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1# -*- Python -*-
2
3# Configuration file for the 'lit' test runner.
4
5import os
6import sys
7import re
8import platform
9
10import lit.util
11import lit.formats
12
13# name: The name of this test suite.
14config.name = 'LLVM'
15
16# Tweak PATH for Win32 to decide to use bash.exe or not.
17if sys.platform in ['win32']:
18    # Seek sane tools in directories and set to $PATH.
19    path = getattr(config, 'lit_tools_dir', None)
20    path = lit_config.getToolsPath(path,
21                                   config.environment['PATH'],
22                                   ['cmp.exe', 'grep.exe', 'sed.exe'])
23    if path is not None:
24        path = os.path.pathsep.join((path,
25                                     config.environment['PATH']))
26        config.environment['PATH'] = path
27
28# Choose between lit's internal shell pipeline runner and a real shell.  If
29# LIT_USE_INTERNAL_SHELL is in the environment, we use that as an override.
30use_lit_shell = os.environ.get("LIT_USE_INTERNAL_SHELL")
31if use_lit_shell:
32    # 0 is external, "" is default, and everything else is internal.
33    execute_external = (use_lit_shell == "0")
34else:
35    # Otherwise we default to internal on Windows and external elsewhere, as
36    # bash on Windows is usually very slow.
37    execute_external = (not sys.platform in ['win32'])
38
39# testFormat: The test format to use to interpret tests.
40config.test_format = lit.formats.ShTest(execute_external)
41
42# suffixes: A list of file extensions to treat as test files. This is overriden
43# by individual lit.local.cfg files in the test subdirectories.
44config.suffixes = ['.ll', '.c', '.cxx', '.test', '.txt', '.s']
45
46# excludes: A list of directories to exclude from the testsuite. The 'Inputs'
47# subdirectories contain auxiliary inputs for various tests in their parent
48# directories.
49config.excludes = ['Inputs', 'CMakeLists.txt', 'README.txt', 'LICENSE.txt']
50
51# test_source_root: The root path where tests are located.
52config.test_source_root = os.path.dirname(__file__)
53
54# test_exec_root: The root path where tests should be run.
55llvm_obj_root = getattr(config, 'llvm_obj_root', None)
56if llvm_obj_root is not None:
57    config.test_exec_root = os.path.join(llvm_obj_root, 'test')
58
59# Tweak the PATH to include the tools dir.
60if llvm_obj_root is not None:
61    llvm_tools_dir = getattr(config, 'llvm_tools_dir', None)
62    if not llvm_tools_dir:
63        lit_config.fatal('No LLVM tools dir set!')
64    path = os.path.pathsep.join((llvm_tools_dir, config.environment['PATH']))
65    config.environment['PATH'] = path
66
67# Propagate 'HOME' through the environment.
68if 'HOME' in os.environ:
69    config.environment['HOME'] = os.environ['HOME']
70
71# Propagate 'INCLUDE' through the environment.
72if 'INCLUDE' in os.environ:
73    config.environment['INCLUDE'] = os.environ['INCLUDE']
74
75# Propagate 'LIB' through the environment.
76if 'LIB' in os.environ:
77    config.environment['LIB'] = os.environ['LIB']
78
79# Propagate the temp directory. Windows requires this because it uses \Windows\
80# if none of these are present.
81if 'TMP' in os.environ:
82    config.environment['TMP'] = os.environ['TMP']
83if 'TEMP' in os.environ:
84    config.environment['TEMP'] = os.environ['TEMP']
85
86# Propagate LLVM_SRC_ROOT into the environment.
87config.environment['LLVM_SRC_ROOT'] = getattr(config, 'llvm_src_root', '')
88
89# Propagate PYTHON_EXECUTABLE into the environment
90config.environment['PYTHON_EXECUTABLE'] = getattr(config, 'python_executable',
91                                                  '')
92
93# Propagate path to symbolizer for ASan/MSan.
94for symbolizer in ['ASAN_SYMBOLIZER_PATH', 'MSAN_SYMBOLIZER_PATH']:
95    if symbolizer in os.environ:
96        config.environment[symbolizer] = os.environ[symbolizer]
97
98# Set up OCAMLPATH to include newly built OCaml libraries.
99llvm_lib_dir = getattr(config, 'llvm_lib_dir', None)
100if llvm_lib_dir is None:
101    if llvm_obj_root is not None:
102        llvm_lib_dir = os.path.join(llvm_obj_root, 'lib')
103
104if llvm_lib_dir is not None:
105    llvm_ocaml_lib = os.path.join(llvm_lib_dir, 'ocaml')
106    if llvm_ocaml_lib is not None:
107        if 'OCAMLPATH' in os.environ:
108            ocamlpath = os.path.pathsep.join((llvm_ocaml_lib, os.environ['OCAMLPATH']))
109            config.environment['OCAMLPATH'] = ocamlpath
110        else:
111            config.environment['OCAMLPATH'] = llvm_ocaml_lib
112
113        if 'CAML_LD_LIBRARY_PATH' in os.environ:
114            caml_ld_library_path = os.path.pathsep.join((llvm_ocaml_lib,
115                                        os.environ['CAML_LD_LIBRARY_PATH']))
116            config.environment['CAML_LD_LIBRARY_PATH'] = caml_ld_library_path
117        else:
118            config.environment['CAML_LD_LIBRARY_PATH'] = llvm_ocaml_lib
119
120# Set up OCAMLRUNPARAM to enable backtraces in OCaml tests.
121config.environment['OCAMLRUNPARAM'] = 'b'
122
123###
124
125import os
126
127# Check that the object root is known.
128if config.test_exec_root is None:
129    # Otherwise, we haven't loaded the site specific configuration (the user is
130    # probably trying to run on a test file directly, and either the site
131    # configuration hasn't been created by the build system, or we are in an
132    # out-of-tree build situation).
133
134    # Check for 'llvm_site_config' user parameter, and use that if available.
135    site_cfg = lit_config.params.get('llvm_site_config', None)
136    if site_cfg and os.path.exists(site_cfg):
137        lit_config.load_config(config, site_cfg)
138        raise SystemExit
139
140    # Try to detect the situation where we are using an out-of-tree build by
141    # looking for 'llvm-config'.
142    #
143    # FIXME: I debated (i.e., wrote and threw away) adding logic to
144    # automagically generate the lit.site.cfg if we are in some kind of fresh
145    # build situation. This means knowing how to invoke the build system
146    # though, and I decided it was too much magic.
147
148    llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
149    if not llvm_config:
150        lit_config.fatal('No site specific configuration available!')
151
152    # Get the source and object roots.
153    llvm_src_root = lit.util.capture(['llvm-config', '--src-root']).strip()
154    llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip()
155
156    # Validate that we got a tree which points to here.
157    this_src_root = os.path.dirname(config.test_source_root)
158    if os.path.realpath(llvm_src_root) != os.path.realpath(this_src_root):
159        lit_config.fatal('No site specific configuration available!')
160
161    # Check that the site specific configuration exists.
162    site_cfg = os.path.join(llvm_obj_root, 'test', 'lit.site.cfg')
163    if not os.path.exists(site_cfg):
164        lit_config.fatal('No site specific configuration available!')
165
166    # Okay, that worked. Notify the user of the automagic, and reconfigure.
167    lit_config.note('using out-of-tree build at %r' % llvm_obj_root)
168    lit_config.load_config(config, site_cfg)
169    raise SystemExit
170
171###
172
173lli = 'lli'
174# The target triple used by default by lli is the process target triple (some
175# triple appropriate for generating code for the current process) but because
176# we don't support COFF in MCJIT well enough for the tests, force ELF format on
177# Windows.  FIXME: the process target triple should be used here, but this is
178# difficult to obtain on Windows.
179if re.search(r'cygwin|mingw32|windows-gnu|windows-msvc|win32', config.host_triple):
180  lli += ' -mtriple='+config.host_triple+'-elf'
181config.substitutions.append( ('%lli', lli ) )
182
183# Similarly, have a macro to use llc with DWARF even when the host is win32.
184llc_dwarf = 'llc'
185if re.search(r'win32', config.target_triple):
186  llc_dwarf += ' -mtriple='+config.target_triple.replace('-win32', '-mingw32')
187config.substitutions.append( ('%llc_dwarf', llc_dwarf) )
188
189# Add site-specific substitutions.
190config.substitutions.append( ('%gold', config.gold_executable) )
191config.substitutions.append( ('%ld64', config.ld64_executable) )
192config.substitutions.append( ('%go', config.go_executable) )
193config.substitutions.append( ('%llvmshlibdir', config.llvm_shlib_dir) )
194config.substitutions.append( ('%shlibext', config.llvm_shlib_ext) )
195config.substitutions.append( ('%exeext', config.llvm_exe_ext) )
196config.substitutions.append( ('%python', config.python_executable) )
197config.substitutions.append( ('%host_cc', config.host_cc) )
198
199# OCaml substitutions.
200# Support tests for both native and bytecode builds.
201config.substitutions.append( ('%ocamlc',
202    "%s ocamlc -cclib -L%s %s" %
203        (config.ocamlfind_executable, llvm_lib_dir, config.ocaml_flags)) )
204if config.have_ocamlopt in ('1', 'TRUE'):
205    config.substitutions.append( ('%ocamlopt',
206        "%s ocamlopt -cclib -L%s -cclib -Wl,-rpath,%s %s" %
207            (config.ocamlfind_executable, llvm_lib_dir, llvm_lib_dir, config.ocaml_flags)) )
208else:
209    config.substitutions.append( ('%ocamlopt', "true" ) )
210
211# For each occurrence of an llvm tool name as its own word, replace it
212# with the full path to the build directory holding that tool.  This
213# ensures that we are testing the tools just built and not some random
214# tools that might happen to be in the user's PATH.  Thus this list
215# includes every tool placed in $(LLVM_OBJ_ROOT)/$(BuildMode)/bin
216# (llvm_tools_dir in lit parlance).
217
218# Avoid matching RUN line fragments that are actually part of
219# path names or options or whatever.
220# The regex is a pre-assertion to avoid matching a preceding
221# dot, hyphen, carat, or slash (.foo, -foo, etc.).  Some patterns
222# also have a post-assertion to not match a trailing hyphen (foo-).
223NOJUNK = r"(?<!\.|-|\^|/)"
224
225
226def find_tool_substitution(pattern):
227    # Extract the tool name from the pattern.  This relies on the tool
228    # name being surrounded by \b word match operators.  If the
229    # pattern starts with "| ", include it in the string to be
230    # substituted.
231    tool_match = re.match(r"^(\\)?((\| )?)\W+b([0-9A-Za-z-_]+)\\b\W*$",
232                          pattern)
233    tool_pipe = tool_match.group(2)
234    tool_name = tool_match.group(4)
235    # Did the user specify the tool path + arguments? This allows things like
236    # llvm-lit "-Dllc=llc -enable-misched -verify-machineinstrs"
237    tool_path = lit_config.params.get(tool_name)
238    if tool_path is None:
239        tool_path = lit.util.which(tool_name, llvm_tools_dir)
240        if tool_path is None:
241            return tool_name, tool_path, tool_pipe
242    if (tool_name == "llc" and
243       'LLVM_ENABLE_MACHINE_VERIFIER' in os.environ and
244       os.environ['LLVM_ENABLE_MACHINE_VERIFIER'] == "1"):
245        tool_path += " -verify-machineinstrs"
246    if (tool_name == "llvm-go"):
247        tool_path += " go=" + config.go_executable
248    return tool_name, tool_path, tool_pipe
249
250
251for pattern in [r"\bbugpoint\b(?!-)",
252                NOJUNK + r"\bllc\b",
253                r"\blli\b",
254                r"\bllvm-ar\b",
255                r"\bllvm-as\b",
256                r"\bllvm-bcanalyzer\b",
257                r"\bllvm-config\b",
258                r"\bllvm-cov\b",
259                r"\bllvm-cxxdump\b",
260                r"\bllvm-diff\b",
261                r"\bllvm-dis\b",
262                r"\bllvm-dsymutil\b",
263                r"\bllvm-dwarfdump\b",
264                r"\bllvm-extract\b",
265                r"\bllvm-lib\b",
266                r"\bllvm-link\b",
267                r"\bllvm-lto\b",
268                r"\bllvm-mc\b",
269                r"\bllvm-mcmarkup\b",
270                r"\bllvm-nm\b",
271                r"\bllvm-objdump\b",
272                r"\bllvm-profdata\b",
273                r"\bllvm-ranlib\b",
274                r"\bllvm-readobj\b",
275                r"\bllvm-rtdyld\b",
276                r"\bllvm-size\b",
277                r"\bllvm-split\b",
278                r"\bllvm-tblgen\b",
279                r"\bllvm-c-test\b",
280                NOJUNK + r"\bllvm-symbolizer\b",
281                NOJUNK + r"\bopt\b",
282                r"\bFileCheck\b",
283                r"\bobj2yaml\b",
284                NOJUNK + r"\bsancov\b",
285                r"\byaml2obj\b",
286                r"\byaml-bench\b",
287                r"\bverify-uselistorder\b",
288                # Handle these specially as they are strings searched
289                # for during testing.
290                r"\| \bcount\b",
291                r"\| \bnot\b"]:
292    tool_name, tool_path, tool_pipe = find_tool_substitution(pattern)
293    if not tool_path:
294        # Warn, but still provide a substitution.
295        lit_config.note('Did not find ' + tool_name + ' in ' + llvm_tools_dir)
296        tool_path = llvm_tools_dir + '/' + tool_name
297    config.substitutions.append((pattern, tool_pipe + tool_path))
298
299# For tools that are optional depending on the config, we won't warn
300# if they're missing.
301for pattern in [r"\bllvm-go\b",
302                r"\bKaleidoscope-Ch3\b",
303                r"\bKaleidoscope-Ch4\b",
304                r"\bKaleidoscope-Ch5\b",
305                r"\bKaleidoscope-Ch6\b",
306                r"\bKaleidoscope-Ch7\b",
307                r"\bKaleidoscope-Ch8\b"]:
308    tool_name, tool_path, tool_pipe = find_tool_substitution(pattern)
309    if not tool_path:
310        # Provide a substitution anyway, for the sake of consistent errors.
311        tool_path = llvm_tools_dir + '/' + tool_name
312    config.substitutions.append((pattern, tool_pipe + tool_path))
313
314
315### Targets
316
317config.targets = frozenset(config.targets_to_build.split())
318
319### Features
320
321# Shell execution
322if execute_external:
323    config.available_features.add('shell')
324
325# Others/can-execute.txt
326if sys.platform not in ['win32']:
327    config.available_features.add('can-execute')
328
329# Loadable module
330# FIXME: This should be supplied by Makefile or autoconf.
331if sys.platform in ['win32', 'cygwin']:
332    loadable_module = (config.enable_shared == 1)
333else:
334    loadable_module = True
335
336if loadable_module:
337    config.available_features.add('loadable_module')
338
339# Sanitizers.
340if config.llvm_use_sanitizer == "Address":
341    config.available_features.add("asan")
342if (config.llvm_use_sanitizer == "Memory" or
343        config.llvm_use_sanitizer == "MemoryWithOrigins"):
344    config.available_features.add("msan")
345else:
346    config.available_features.add("not_msan")
347if config.llvm_use_sanitizer == "Undefined":
348    config.available_features.add("ubsan")
349else:
350    config.available_features.add("not_ubsan")
351
352# Check if we should run long running tests.
353if lit_config.params.get("run_long_tests", None) == "true":
354    config.available_features.add("long_tests")
355
356# Direct object generation
357if not 'hexagon' in config.target_triple:
358    config.available_features.add("object-emission")
359
360if config.have_zlib == "1":
361    config.available_features.add("zlib")
362else:
363    config.available_features.add("nozlib")
364
365# LLVM can be configured with an empty default triple
366# Some tests are "generic" and require a valid default triple
367if config.target_triple:
368    config.available_features.add("default_triple")
369    if re.match(r'^x86_64.*-linux', config.target_triple):
370      config.available_features.add("x86_64-linux")
371
372# Native compilation: host arch == default triple arch
373# FIXME: Consider cases that target can be executed
374# even if host_triple were different from target_triple.
375if config.host_triple == config.target_triple:
376    config.available_features.add("native")
377
378import subprocess
379
380def have_ld_plugin_support():
381    if not os.path.exists(os.path.join(config.llvm_shlib_dir, 'LLVMgold.so')):
382        return False
383
384    ld_cmd = subprocess.Popen([config.gold_executable, '--help'], stdout = subprocess.PIPE, env={'LANG': 'C'})
385    ld_out = ld_cmd.stdout.read().decode()
386    ld_cmd.wait()
387
388    if not '-plugin' in ld_out:
389        return False
390
391    # check that the used emulations are supported.
392    emu_line = [l for l in ld_out.split('\n') if 'supported emulations' in l]
393    if len(emu_line) != 1:
394        return False
395    emu_line = emu_line[0]
396    fields = emu_line.split(':')
397    if len(fields) != 3:
398        return False
399    emulations = fields[2].split()
400    if 'elf_x86_64' not in emulations:
401        return False
402    if 'elf32ppc' in emulations:
403        config.available_features.add('ld_emu_elf32ppc')
404
405    ld_version = subprocess.Popen([config.gold_executable, '--version'], stdout = subprocess.PIPE, env={'LANG': 'C'})
406    if not 'GNU gold' in ld_version.stdout.read().decode():
407        return False
408    ld_version.wait()
409
410    return True
411
412if have_ld_plugin_support():
413    config.available_features.add('ld_plugin')
414
415def have_ld64_plugin_support():
416    if config.ld64_executable == '':
417        return False
418
419    ld_cmd = subprocess.Popen([config.ld64_executable, '-v'], stderr = subprocess.PIPE)
420    ld_out = ld_cmd.stderr.read().decode()
421    ld_cmd.wait()
422
423    if 'ld64' not in ld_out or 'LTO' not in ld_out:
424        return False
425
426    return True
427
428if have_ld64_plugin_support():
429    config.available_features.add('ld64_plugin')
430
431# Ask llvm-config about assertion mode.
432try:
433    llvm_config_cmd = subprocess.Popen(
434        [os.path.join(llvm_tools_dir, 'llvm-config'), '--assertion-mode'],
435        stdout = subprocess.PIPE,
436        env=config.environment)
437except OSError:
438    print("Could not find llvm-config in " + llvm_tools_dir)
439    exit(42)
440
441if re.search(r'ON', llvm_config_cmd.stdout.read().decode('ascii')):
442    config.available_features.add('asserts')
443llvm_config_cmd.wait()
444
445if 'darwin' == sys.platform:
446    try:
447        sysctl_cmd = subprocess.Popen(['sysctl', 'hw.optional.fma'],
448                                    stdout = subprocess.PIPE)
449    except OSError:
450        print("Could not exec sysctl")
451    result = sysctl_cmd.stdout.read().decode('ascii')
452    if -1 != result.find("hw.optional.fma: 1"):
453        config.available_features.add('fma3')
454    sysctl_cmd.wait()
455
456if platform.system() in ['Windows'] and re.match(r'.*-win32$', config.target_triple):
457    # For tests that require Windows to run.
458    config.available_features.add('system-windows')
459
460# .debug_frame is not emitted for targeting Windows x64.
461if not re.match(r'^x86_64.*-(mingw32|windows-gnu|win32)', config.target_triple):
462    config.available_features.add('debug_frame')
463
464# Check if we should use gmalloc.
465use_gmalloc_str = lit_config.params.get('use_gmalloc', None)
466if use_gmalloc_str is not None:
467    if use_gmalloc_str.lower() in ('1', 'true'):
468        use_gmalloc = True
469    elif use_gmalloc_str.lower() in ('', '0', 'false'):
470        use_gmalloc = False
471    else:
472        lit_config.fatal('user parameter use_gmalloc should be 0 or 1')
473else:
474    # Default to not using gmalloc
475    use_gmalloc = False
476
477# Allow use of an explicit path for gmalloc library.
478# Will default to '/usr/lib/libgmalloc.dylib' if not set.
479gmalloc_path_str = lit_config.params.get('gmalloc_path',
480                                         '/usr/lib/libgmalloc.dylib')
481
482if use_gmalloc:
483     config.environment.update({'DYLD_INSERT_LIBRARIES' : gmalloc_path_str})
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