third_party/LLVM/test/lit.cfg - SwiftShader - Git at Google

 # -*- Python -*-

 # Configuration file for the 'lit' test runner.

 import os
 import sys
 import re

 # name: The name of this test suite.
 config.name = 'LLVM'

 # testFormat: The test format to use to interpret tests.
 config.test_format = lit.formats.TclTest()

 # To ignore test output on stderr so it doesn't trigger failures uncomment this:
 #config.test_format = lit.formats.TclTest(ignoreStdErr=True)

 # suffixes: A list of file extensions to treat as test files, this is actually
 # set by on_clone().
 config.suffixes = []

 # test_source_root: The root path where tests are located.
 config.test_source_root = os.path.dirname(__file__)

 # Tweak PATH for Win32
 if sys.platform in ['win32']:
     # Seek sane tools in directories and set to $PATH.
     path = getattr(config, 'lit_tools_dir', None)
     path = lit.getToolsPath(path,
                             config.environment['PATH'],
                             ['cmp.exe', 'grep.exe', 'sed.exe'])
     if path is not None:
         path = os.path.pathsep.join((path,
                                      config.environment['PATH']))
         config.environment['PATH'] = path

 # test_exec_root: The root path where tests should be run.
 llvm_obj_root = getattr(config, 'llvm_obj_root', None)
 if llvm_obj_root is not None:
     config.test_exec_root = os.path.join(llvm_obj_root, 'test')

 # Tweak the PATH to include the scripts dir, the tools dir, and the llvm-gcc bin
 # dir (if available).
 if llvm_obj_root is not None:
     # Include llvm-gcc first, as the llvm-gcc binaryies will not appear
     # neither in the tools nor in the scripts dir. However it might be
     # possible, that some old llvm tools are in the llvm-gcc dir. Adding
     # llvm-gcc dir first ensures, that those will always be overwritten
     # by the new tools in llvm_tools_dir. So now outdated tools are used
       # for testing
     llvmgcc_dir = getattr(config, 'llvmgcc_dir', None)
     if llvmgcc_dir:
         path = os.path.pathsep.join((os.path.join(llvmgcc_dir, 'bin'),
                                      config.environment['PATH']))
         config.environment['PATH'] = path

     llvm_src_root = getattr(config, 'llvm_src_root', None)
     if not llvm_src_root:
         lit.fatal('No LLVM source root set!')
     path = os.path.pathsep.join((os.path.join(llvm_src_root, 'test',
                                               'Scripts'),
                                  config.environment['PATH']))
     config.environment['PATH'] = path

     llvm_tools_dir = getattr(config, 'llvm_tools_dir', None)
     if not llvm_tools_dir:
         lit.fatal('No LLVM tools dir set!')
     path = os.path.pathsep.join((llvm_tools_dir, config.environment['PATH']))
     config.environment['PATH'] = path

 # Propagate 'HOME' through the environment.
 if 'HOME' in os.environ:
     config.environment['HOME'] = os.environ['HOME']

 # Propagate 'INCLUDE' through the environment.
 if 'INCLUDE' in os.environ:
     config.environment['INCLUDE'] = os.environ['INCLUDE']

 # Propagate 'LIB' through the environment.
 if 'LIB' in os.environ:
     config.environment['LIB'] = os.environ['LIB']

 # Propagate the temp directory. Windows requires this because it uses \Windows\
 # if none of these are present.
 if 'TMP' in os.environ:
     config.environment['TMP'] = os.environ['TMP']
 if 'TEMP' in os.environ:
     config.environment['TEMP'] = os.environ['TEMP']

 # Propagate LLVM_SRC_ROOT into the environment.
 config.environment['LLVM_SRC_ROOT'] = getattr(config, 'llvm_src_root', '')

 # Propagate PYTHON_EXECUTABLE into the environment
 config.environment['PYTHON_EXECUTABLE'] = getattr(config, 'python_executable',
                                                   '')

 ###

 import os

 # Check that the object root is known.
 if config.test_exec_root is None:
     # Otherwise, we haven't loaded the site specific configuration (the user is
     # probably trying to run on a test file directly, and either the site
     # configuration hasn't been created by the build system, or we are in an
     # out-of-tree build situation).

     # Check for 'llvm_site_config' user parameter, and use that if available.
     site_cfg = lit.params.get('llvm_site_config', None)
     if site_cfg and os.path.exists(site_cfg):
         lit.load_config(config, site_cfg)
         raise SystemExit

     # Try to detect the situation where we are using an out-of-tree build by
     # looking for 'llvm-config'.
     #
     # FIXME: I debated (i.e., wrote and threw away) adding logic to
     # automagically generate the lit.site.cfg if we are in some kind of fresh
     # build situation. This means knowing how to invoke the build system
     # though, and I decided it was too much magic.

     llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
     if not llvm_config:
         lit.fatal('No site specific configuration available!')

     # Get the source and object roots.
     llvm_src_root = lit.util.capture(['llvm-config', '--src-root']).strip()
     llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip()

     # Validate that we got a tree which points to here.
     this_src_root = os.path.dirname(config.test_source_root)
     if os.path.realpath(llvm_src_root) != os.path.realpath(this_src_root):
         lit.fatal('No site specific configuration available!')

     # Check that the site specific configuration exists.
     site_cfg = os.path.join(llvm_obj_root, 'test', 'lit.site.cfg')
     if not os.path.exists(site_cfg):
         lit.fatal('No site specific configuration available!')

     # Okay, that worked. Notify the user of the automagic, and reconfigure.
     lit.note('using out-of-tree build at %r' % llvm_obj_root)
     lit.load_config(config, site_cfg)
     raise SystemExit

 ###

 # Load site data from DejaGNU's site.exp.
 import re
 site_exp = {}
 # FIXME: Implement lit.site.cfg.
 for line in open(os.path.join(config.llvm_obj_root, 'test', 'site.exp')):
     m = re.match('set ([^ ]+) "(.*)"', line)
     if m:
         site_exp[m.group(1)] = m.group(2)

 # Add substitutions.
 config.substitutions.append(('%llvmgcc_only', site_exp['llvmgcc']))
 for sub in ['llvmgcc', 'llvmgxx', 'emitir', 'compile_cxx', 'compile_c',
             'link', 'shlibext', 'ocamlopt', 'llvmdsymutil', 'llvmlibsdir',
             'llvmshlibdir',
             'bugpoint_topts']:
     if sub in ('llvmgcc', 'llvmgxx'):
         config.substitutions.append(('%' + sub,
                                      site_exp[sub] + ' %emitir -w'))
     # FIXME: This is a hack to avoid LLVMC tests failing due to a clang driver
     #        warning when passing in "-fexceptions -fno-exceptions".
     elif sub == 'compile_cxx':
         config.substitutions.append(('%' + sub,
                                   site_exp[sub].replace('-fno-exceptions', '')))
     else:
         config.substitutions.append(('%' + sub, site_exp[sub]))

 # For each occurrence of an llvm tool name as its own word, replace it
 # with the full path to the build directory holding that tool.  This
 # ensures that we are testing the tools just built and not some random
 # tools that might happen to be in the user's PATH.  Thus this list
 # includes every tool placed in $(LLVM_OBJ_ROOT)/$(BuildMode)/bin
 # (llvm_tools_dir in lit parlance).
                 # Don't match 'bugpoint-' or 'clang-'.
                 # Don't match '/clang' or '-clang'.
 if os.pathsep == ';':
     pathext = os.environ.get('PATHEXT', '').split(';')
 else:
     pathext = ['']
 for pattern in [r"\bbugpoint\b(?!-)",   r"(?<!/|-)\bclang\b(?!-)",
                 r"\bgold\b",
                 r"\bllc\b",             r"\blli\b",
                 r"\bllvm-ar\b",         r"\bllvm-as\b",
                 r"\bllvm-bcanalyzer\b", r"\bllvm-config\b",
                 r"\bllvm-diff\b",       r"\bllvm-dis\b",
                 r"\bllvm-extract\b",    r"\bllvm-ld\b",
                 r"\bllvm-link\b",       r"\bllvm-mc\b",
                 r"\bllvm-nm\b",         r"\bllvm-prof\b",
                 r"\bllvm-ranlib\b",     r"\bllvm-shlib\b",
                 r"\bllvm-stub\b",       r"\bllvm2cpp\b",
                 # Don't match '-llvmc'.
                 r"(?<!-)\bllvmc\b",     r"\blto\b",
                                         # Don't match '.opt', '-opt',
                                         # '^opt' or '/opt'.
                 r"\bmacho-dump\b",      r"(?<!\.|-|\^|/)\bopt\b",
                 r"\bllvm-tblgen\b",     r"\bFileCheck\b",
                 r"\bFileUpdate\b",      r"\bc-index-test\b",
                 r"\bfpcmp\b",           r"\bllvm-PerfectShuffle\b",
                 # Handle these specially as they are strings searched
                 # for during testing.
                 r"\| \bcount\b",         r"\| \bnot\b"]:
     # Extract the tool name from the pattern.  This relies on the tool
     # name being surrounded by \b word match operators.  If the
     # pattern starts with "| ", include it in the string to be
     # substituted.
     substitution = re.sub(r"^(\\)?((\| )?)\W+b([0-9A-Za-z-_]+)\\b\W*$",
                           r"\2" + llvm_tools_dir + "/" + r"\4",
                           pattern)
     for ext in pathext:
         substitution_ext = substitution + ext
         if os.path.exists(substitution_ext):
              substitution = substitution_ext
              break
     config.substitutions.append((pattern, substitution))

 excludes = []

 # Provide target_triple for use in XFAIL and XTARGET.
 config.target_triple = site_exp['target_triplet']

 # When running under valgrind, we mangle '-vg' or '-vg_leak' onto the end of the
 # triple so we can check it with XFAIL and XTARGET.
 config.target_triple += lit.valgrindTriple

 # Provide llvm_supports_target for use in local configs.
 targets = set(site_exp["TARGETS_TO_BUILD"].split())
 def llvm_supports_target(name):
     return name in targets

 def llvm_supports_darwin_and_target(name):
     return 'darwin' in config.target_triple and llvm_supports_target(name)

 bindings = set([s.strip() for s in site_exp['llvm_bindings'].split(',')])
 def llvm_supports_binding(name):
     return name.strip() in bindings

 # Provide on_clone hook for reading 'dg.exp'.
 import os
 simpleLibData = re.compile(r"""load_lib llvm.exp

 RunLLVMTests \[lsort \[glob -nocomplain \$srcdir/\$subdir/\*\.(.*)\]\]""",
                            re.MULTILINE)
 conditionalLibData = re.compile(r"""load_lib llvm.exp

 if.*\[ ?(llvm[^ ]*) ([^ ]*) ?\].*{
  *RunLLVMTests \[lsort \[glob -nocomplain \$srcdir/\$subdir/\*\.(.*)\]\]
 \}""", re.MULTILINE)
 def on_clone(parent, cfg, for_path):
     def addSuffixes(match):
         if match[0] == '{' and match[-1] == '}':
             cfg.suffixes = ['.' + s for s in match[1:-1].split(',')]
         else:
             cfg.suffixes = ['.' + match]

     libPath = os.path.join(os.path.dirname(for_path),
                            'dg.exp')
     if not os.path.exists(libPath):
         cfg.unsupported = True
         return

     # Reset unsupported, in case we inherited it.
     cfg.unsupported = False
     lib = open(libPath).read().strip()

     # Check for a simple library.
     m = simpleLibData.match(lib)
     if m:
         addSuffixes(m.group(1))
         return

     # Check for a conditional test set.
     m = conditionalLibData.match(lib)
     if m:
         funcname,arg,match = m.groups()
         addSuffixes(match)

         func = globals().get(funcname)
         if not func:
             lit.error('unsupported predicate %r' % funcname)
         elif not func(arg):
             cfg.unsupported = True
         return
     # Otherwise, give up.
     lit.error('unable to understand %r:\n%s' % (libPath, lib))

 config.on_clone = on_clone

 ### Features

 # Shell execution
 if sys.platform not in ['win32'] or lit.getBashPath() != '':
     config.available_features.add('shell')

 # Loadable module
 # FIXME: This should be supplied by Makefile or autoconf.
 if sys.platform in ['win32', 'cygwin']:
     loadable_module = (config.enable_shared == 1)
 else:
     loadable_module = True

 if loadable_module:
     config.available_features.add('loadable_module')

 if config.enable_assertions:
     config.available_features.add('asserts')
	# -- Python --

	# Configuration file for the 'lit' test runner.

	import os
	import sys
	import re

	# name: The name of this test suite.
	config.name = 'LLVM'

	# testFormat: The test format to use to interpret tests.
	config.test_format = lit.formats.TclTest()

	# To ignore test output on stderr so it doesn't trigger failures uncomment this:
	#config.test_format = lit.formats.TclTest(ignoreStdErr=True)

	# suffixes: A list of file extensions to treat as test files, this is actually
	# set by on_clone().
	config.suffixes = []

	# test_source_root: The root path where tests are located.
	config.test_source_root = os.path.dirname(__file__)

	# Tweak PATH for Win32
	if sys.platform in ['win32']:
	# Seek sane tools in directories and set to $PATH.
	path = getattr(config, 'lit_tools_dir', None)
	path = lit.getToolsPath(path,
	config.environment['PATH'],
	['cmp.exe', 'grep.exe', 'sed.exe'])
	if path is not None:
	path = os.path.pathsep.join((path,
	config.environment['PATH']))
	config.environment['PATH'] = path

	# test_exec_root: The root path where tests should be run.
	llvm_obj_root = getattr(config, 'llvm_obj_root', None)
	if llvm_obj_root is not None:
	config.test_exec_root = os.path.join(llvm_obj_root, 'test')

	# Tweak the PATH to include the scripts dir, the tools dir, and the llvm-gcc bin
	# dir (if available).
	if llvm_obj_root is not None:
	# Include llvm-gcc first, as the llvm-gcc binaryies will not appear
	# neither in the tools nor in the scripts dir. However it might be
	# possible, that some old llvm tools are in the llvm-gcc dir. Adding
	# llvm-gcc dir first ensures, that those will always be overwritten
	# by the new tools in llvm_tools_dir. So now outdated tools are used
	# for testing
	llvmgcc_dir = getattr(config, 'llvmgcc_dir', None)
	if llvmgcc_dir:
	path = os.path.pathsep.join((os.path.join(llvmgcc_dir, 'bin'),
	config.environment['PATH']))
	config.environment['PATH'] = path

	llvm_src_root = getattr(config, 'llvm_src_root', None)
	if not llvm_src_root:
	lit.fatal('No LLVM source root set!')
	path = os.path.pathsep.join((os.path.join(llvm_src_root, 'test',
	'Scripts'),
	config.environment['PATH']))
	config.environment['PATH'] = path

	llvm_tools_dir = getattr(config, 'llvm_tools_dir', None)
	if not llvm_tools_dir:
	lit.fatal('No LLVM tools dir set!')
	path = os.path.pathsep.join((llvm_tools_dir, config.environment['PATH']))
	config.environment['PATH'] = path

	# Propagate 'HOME' through the environment.
	if 'HOME' in os.environ:
	config.environment['HOME'] = os.environ['HOME']

	# Propagate 'INCLUDE' through the environment.
	if 'INCLUDE' in os.environ:
	config.environment['INCLUDE'] = os.environ['INCLUDE']

	# Propagate 'LIB' through the environment.
	if 'LIB' in os.environ:
	config.environment['LIB'] = os.environ['LIB']

	# Propagate the temp directory. Windows requires this because it uses \Windows\
	# if none of these are present.
	if 'TMP' in os.environ:
	config.environment['TMP'] = os.environ['TMP']
	if 'TEMP' in os.environ:
	config.environment['TEMP'] = os.environ['TEMP']

	# Propagate LLVM_SRC_ROOT into the environment.
	config.environment['LLVM_SRC_ROOT'] = getattr(config, 'llvm_src_root', '')

	# Propagate PYTHON_EXECUTABLE into the environment
	config.environment['PYTHON_EXECUTABLE'] = getattr(config, 'python_executable',
	'')

	###

	import os

	# Check that the object root is known.
	if config.test_exec_root is None:
	# Otherwise, we haven't loaded the site specific configuration (the user is
	# probably trying to run on a test file directly, and either the site
	# configuration hasn't been created by the build system, or we are in an
	# out-of-tree build situation).

	# Check for 'llvm_site_config' user parameter, and use that if available.
	site_cfg = lit.params.get('llvm_site_config', None)
	if site_cfg and os.path.exists(site_cfg):
	lit.load_config(config, site_cfg)
	raise SystemExit

	# Try to detect the situation where we are using an out-of-tree build by
	# looking for 'llvm-config'.
	#
	# FIXME: I debated (i.e., wrote and threw away) adding logic to
	# automagically generate the lit.site.cfg if we are in some kind of fresh
	# build situation. This means knowing how to invoke the build system
	# though, and I decided it was too much magic.

	llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
	if not llvm_config:
	lit.fatal('No site specific configuration available!')

	# Get the source and object roots.
	llvm_src_root = lit.util.capture(['llvm-config', '--src-root']).strip()
	llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip()

	# Validate that we got a tree which points to here.
	this_src_root = os.path.dirname(config.test_source_root)
	if os.path.realpath(llvm_src_root) != os.path.realpath(this_src_root):
	lit.fatal('No site specific configuration available!')

	# Check that the site specific configuration exists.
	site_cfg = os.path.join(llvm_obj_root, 'test', 'lit.site.cfg')
	if not os.path.exists(site_cfg):
	lit.fatal('No site specific configuration available!')

	# Okay, that worked. Notify the user of the automagic, and reconfigure.
	lit.note('using out-of-tree build at %r' % llvm_obj_root)
	lit.load_config(config, site_cfg)
	raise SystemExit

	###

	# Load site data from DejaGNU's site.exp.
	import re
	site_exp = {}
	# FIXME: Implement lit.site.cfg.
	for line in open(os.path.join(config.llvm_obj_root, 'test', 'site.exp')):
	m = re.match('set ([^ ]+) "(.*)"', line)
	if m:
	site_exp[m.group(1)] = m.group(2)

	# Add substitutions.
	config.substitutions.append(('%llvmgcc_only', site_exp['llvmgcc']))
	for sub in ['llvmgcc', 'llvmgxx', 'emitir', 'compile_cxx', 'compile_c',
	'link', 'shlibext', 'ocamlopt', 'llvmdsymutil', 'llvmlibsdir',
	'llvmshlibdir',
	'bugpoint_topts']:
	if sub in ('llvmgcc', 'llvmgxx'):
	config.substitutions.append(('%' + sub,
	site_exp[sub] + ' %emitir -w'))
	# FIXME: This is a hack to avoid LLVMC tests failing due to a clang driver
	# warning when passing in "-fexceptions -fno-exceptions".
	elif sub == 'compile_cxx':
	config.substitutions.append(('%' + sub,
	site_exp[sub].replace('-fno-exceptions', '')))
	else:
	config.substitutions.append(('%' + sub, site_exp[sub]))

	# For each occurrence of an llvm tool name as its own word, replace it
	# with the full path to the build directory holding that tool. This
	# ensures that we are testing the tools just built and not some random
	# tools that might happen to be in the user's PATH. Thus this list
	# includes every tool placed in $(LLVM_OBJ_ROOT)/$(BuildMode)/bin
	# (llvm_tools_dir in lit parlance).
	# Don't match 'bugpoint-' or 'clang-'.
	# Don't match '/clang' or '-clang'.
	if os.pathsep == ';':
	pathext = os.environ.get('PATHEXT', '').split(';')
	else:
	pathext = ['']
	for pattern in [r"\bbugpoint\b(?!-)", r"(?<!/\|-)\bclang\b(?!-)",
	r"\bgold\b",
	r"\bllc\b", r"\blli\b",
	r"\bllvm-ar\b", r"\bllvm-as\b",
	r"\bllvm-bcanalyzer\b", r"\bllvm-config\b",
	r"\bllvm-diff\b", r"\bllvm-dis\b",
	r"\bllvm-extract\b", r"\bllvm-ld\b",
	r"\bllvm-link\b", r"\bllvm-mc\b",
	r"\bllvm-nm\b", r"\bllvm-prof\b",
	r"\bllvm-ranlib\b", r"\bllvm-shlib\b",
	r"\bllvm-stub\b", r"\bllvm2cpp\b",
	# Don't match '-llvmc'.
	r"(?<!-)\bllvmc\b", r"\blto\b",
	# Don't match '.opt', '-opt',
	# '^opt' or '/opt'.
	r"\bmacho-dump\b", r"(?<!\.\|-\|\^\|/)\bopt\b",
	r"\bllvm-tblgen\b", r"\bFileCheck\b",
	r"\bFileUpdate\b", r"\bc-index-test\b",
	r"\bfpcmp\b", r"\bllvm-PerfectShuffle\b",
	# Handle these specially as they are strings searched
	# for during testing.
	r"\\| \bcount\b", r"\\| \bnot\b"]:
	# Extract the tool name from the pattern. This relies on the tool
	# name being surrounded by \b word match operators. If the
	# pattern starts with "\| ", include it in the string to be
	# substituted.
	substitution = re.sub(r"^(\\)?((\\| )?)\W+b([0-9A-Za-z-_]+)\\b\W*$",
	r"\2" + llvm_tools_dir + "/" + r"\4",
	pattern)
	for ext in pathext:
	substitution_ext = substitution + ext
	if os.path.exists(substitution_ext):
	substitution = substitution_ext
	break
	config.substitutions.append((pattern, substitution))

	excludes = []

	# Provide target_triple for use in XFAIL and XTARGET.
	config.target_triple = site_exp['target_triplet']

	# When running under valgrind, we mangle '-vg' or '-vg_leak' onto the end of the
	# triple so we can check it with XFAIL and XTARGET.
	config.target_triple += lit.valgrindTriple

	# Provide llvm_supports_target for use in local configs.
	targets = set(site_exp["TARGETS_TO_BUILD"].split())
	def llvm_supports_target(name):
	return name in targets

	def llvm_supports_darwin_and_target(name):
	return 'darwin' in config.target_triple and llvm_supports_target(name)

	bindings = set([s.strip() for s in site_exp['llvm_bindings'].split(',')])
	def llvm_supports_binding(name):
	return name.strip() in bindings

	# Provide on_clone hook for reading 'dg.exp'.
	import os
	simpleLibData = re.compile(r"""load_lib llvm.exp

	RunLLVMTests \[lsort \[glob -nocomplain \$srcdir/\$subdir/\\.(.)\]\]""",
	re.MULTILINE)
	conditionalLibData = re.compile(r"""load_lib llvm.exp

	if.\[ ?(llvm[^ ]) ([^ ]) ?\].{
	RunLLVMTests \[lsort \[glob -nocomplain \$srcdir/\$subdir/\\.(.*)\]\]
	\}""", re.MULTILINE)
	def on_clone(parent, cfg, for_path):
	def addSuffixes(match):
	if match[0] == '{' and match[-1] == '}':
	cfg.suffixes = ['.' + s for s in match[1:-1].split(',')]
	else:
	cfg.suffixes = ['.' + match]

	libPath = os.path.join(os.path.dirname(for_path),
	'dg.exp')
	if not os.path.exists(libPath):
	cfg.unsupported = True
	return

	# Reset unsupported, in case we inherited it.
	cfg.unsupported = False
	lib = open(libPath).read().strip()

	# Check for a simple library.
	m = simpleLibData.match(lib)
	if m:
	addSuffixes(m.group(1))
	return

	# Check for a conditional test set.
	m = conditionalLibData.match(lib)
	if m:
	funcname,arg,match = m.groups()
	addSuffixes(match)

	func = globals().get(funcname)
	if not func:
	lit.error('unsupported predicate %r' % funcname)
	elif not func(arg):
	cfg.unsupported = True
	return
	# Otherwise, give up.
	lit.error('unable to understand %r:\n%s' % (libPath, lib))

	config.on_clone = on_clone

	### Features

	# Shell execution
	if sys.platform not in ['win32'] or lit.getBashPath() != '':
	config.available_features.add('shell')

	# Loadable module
	# FIXME: This should be supplied by Makefile or autoconf.
	if sys.platform in ['win32', 'cygwin']:
	loadable_module = (config.enable_shared == 1)
	else:
	loadable_module = True

	if loadable_module:
	config.available_features.add('loadable_module')

	if config.enable_assertions:
	config.available_features.add('asserts')