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+# -*- Python -*-
+
+import os
+import platform
+import re
+import subprocess
+
+
+# Configuration file for the 'lit' test runner.
+
+# name: The name of this test suite.
+config.name = 'Clang'
+
+# Tweak PATH for Win32
+if platform.system() == 'Windows':
+ # 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
+
+# testFormat: The test format to use to interpret tests.
+#
+# For now we require '&&' between commands, until they get globally killed and
+# the test runner updated.
+execute_external = (platform.system() != 'Windows'
+ or lit.getBashPath() not in [None, ""])
+config.test_format = lit.formats.ShTest(execute_external)
+
+# suffixes: A list of file extensions to treat as test files.
+config.suffixes = ['.c', '.cpp', '.m', '.mm', '.cu', '.ll', '.cl', '.s']
+
+# test_source_root: The root path where tests are located.
+config.test_source_root = os.path.dirname(__file__)
+
+# test_exec_root: The root path where tests should be run.
+clang_obj_root = getattr(config, 'clang_obj_root', None)
+if clang_obj_root is not None:
+ config.test_exec_root = os.path.join(clang_obj_root, 'test')
+
+# Set llvm_{src,obj}_root for use by others.
+config.llvm_src_root = getattr(config, 'llvm_src_root', None)
+config.llvm_obj_root = getattr(config, 'llvm_obj_root', None)
+
+# Clear some environment variables that might affect Clang.
+#
+# This first set of vars are read by Clang, but shouldn't affect tests
+# that aren't specifically looking for these features, or are required
+# simply to run the tests at all.
+#
+# FIXME: Should we have a tool that enforces this?
+
+# safe_env_vars = ('TMPDIR', 'TEMP', 'TMP', 'USERPROFILE', 'PWD',
+# 'MACOSX_DEPLOYMENT_TARGET', 'IPHONEOS_DEPLOYMENT_TARGET',
+# 'IOS_SIMULATOR_DEPLOYMENT_TARGET',
+# 'VCINSTALLDIR', 'VC100COMNTOOLS', 'VC90COMNTOOLS',
+# 'VC80COMNTOOLS')
+possibly_dangerous_env_vars = ['COMPILER_PATH', 'RC_DEBUG_OPTIONS',
+ 'CINDEXTEST_PREAMBLE_FILE', 'LIBRARY_PATH',
+ 'CPATH', 'C_INCLUDE_PATH', 'CPLUS_INCLUDE_PATH',
+ 'OBJC_INCLUDE_PATH', 'OBJCPLUS_INCLUDE_PATH',
+ 'LIBCLANG_TIMING', 'LIBCLANG_OBJTRACKING',
+ 'LIBCLANG_LOGGING', 'LIBCLANG_BGPRIO_INDEX',
+ 'LIBCLANG_BGPRIO_EDIT', 'LIBCLANG_NOTHREADS',
+ 'LIBCLANG_RESOURCE_USAGE',
+ 'LIBCLANG_CODE_COMPLETION_LOGGING']
+# Clang/Win32 may refer to %INCLUDE%. vsvarsall.bat sets it.
+if platform.system() != 'Windows':
+ possibly_dangerous_env_vars.append('INCLUDE')
+for name in possibly_dangerous_env_vars:
+ if name in config.environment:
+ del config.environment[name]
+
+# Tweak the PATH to include the tools dir and the scripts dir.
+if clang_obj_root is not None:
+ 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
+
+ llvm_libs_dir = getattr(config, 'llvm_libs_dir', None)
+ if not llvm_libs_dir:
+ lit.fatal('No LLVM libs dir set!')
+ path = os.path.pathsep.join((llvm_libs_dir,
+ config.environment.get('LD_LIBRARY_PATH','')))
+ config.environment['LD_LIBRARY_PATH'] = path
+
+###
+
+# 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 'clang_site_config' user parameter, and use that if available.
+ site_cfg = lit.params.get('clang_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. We should solve this by just having
+ # the .cfg files generated during the configuration step.
+
+ 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()
+ clang_src_root = os.path.join(llvm_src_root, "tools", "clang")
+ clang_obj_root = os.path.join(llvm_obj_root, "tools", "clang")
+
+ # Validate that we got a tree which points to here, using the standard
+ # tools/clang layout.
+ this_src_root = os.path.dirname(config.test_source_root)
+ if os.path.realpath(clang_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(clang_obj_root, 'test', 'lit.site.cfg')
+ if not os.path.exists(site_cfg):
+ lit.fatal('No site specific configuration available! You may need to '
+ 'run "make test" in your Clang build directory.')
+
+ # Okay, that worked. Notify the user of the automagic, and reconfigure.
+ lit.note('using out-of-tree build at %r' % clang_obj_root)
+ lit.load_config(config, site_cfg)
+ raise SystemExit
+
+###
+
+# Discover the 'clang' and 'clangcc' to use.
+
+import os
+
+def inferClang(PATH):
+ # Determine which clang to use.
+ clang = os.getenv('CLANG')
+
+ # If the user set clang in the environment, definitely use that and don't
+ # try to validate.
+ if clang:
+ return clang
+
+ # Otherwise look in the path.
+ clang = lit.util.which('clang', PATH)
+
+ if not clang:
+ lit.fatal("couldn't find 'clang' program, try setting "
+ "CLANG in your environment")
+
+ return clang
+
+# When running under valgrind, we mangle '-vg' onto the end of the triple so we
+# can check it with XFAIL and XTARGET.
+if lit.useValgrind:
+ config.target_triple += '-vg'
+
+config.clang = inferClang(config.environment['PATH']).replace('\\', '/')
+if not lit.quiet:
+ lit.note('using clang: %r' % config.clang)
+
+# Note that when substituting %clang_cc1 also fill in the include directory of
+# the builtin headers. Those are part of even a freestanding environment, but
+# Clang relies on the driver to locate them.
+def getClangBuiltinIncludeDir(clang):
+ # FIXME: Rather than just getting the version, we should have clang print
+ # out its resource dir here in an easy to scrape form.
+ cmd = subprocess.Popen([clang, '-print-file-name=include'],
+ stdout=subprocess.PIPE)
+ if not cmd.stdout:
+ lit.fatal("Couldn't find the include dir for Clang ('%s')" % clang)
+ return cmd.stdout.read().strip()
+
+config.substitutions.append( ('%clang_cc1', '%s -cc1 -internal-isystem %s'
+ % (config.clang,
+ getClangBuiltinIncludeDir(config.clang))) )
+
+config.substitutions.append( ('%clangxx', ' ' + config.clang +
+ ' -ccc-clang-cxx -ccc-cxx '))
+config.substitutions.append( ('%clang', ' ' + config.clang + ' ') )
+config.substitutions.append( ('%test_debuginfo', ' ' + config.llvm_src_root + '/utils/test_debuginfo.pl ') )
+
+# FIXME: Find nicer way to prohibit this.
+config.substitutions.append(
+ (' clang ', """*** Do not use 'clang' in tests, use '%clang'. ***""") )
+config.substitutions.append(
+ (' clang\+\+ ', """*** Do not use 'clang++' in tests, use '%clangxx'. ***"""))
+config.substitutions.append(
+ (' clang-cc ',
+ """*** Do not use 'clang-cc' in tests, use '%clang_cc1'. ***""") )
+config.substitutions.append(
+ (' clang -cc1 ',
+ """*** Do not use 'clang -cc1' in tests, use '%clang_cc1'. ***""") )
+config.substitutions.append(
+ (' %clang-cc1 ',
+ """*** invalid substitution, use '%clang_cc1'. ***""") )
+
+###
+
+# Set available features we allow tests to conditionalize on.
+#
+# As of 2011.08, crash-recovery tests still do not pass on FreeBSD.
+if platform.system() not in ['FreeBSD']:
+ config.available_features.add('crash-recovery')
+
+# Shell execution
+if platform.system() not in ['Windows'] or lit.getBashPath() != '':
+ config.available_features.add('shell')
+
+# Registered Targets
+def get_llc_props(tool):
+ set_of_targets = set()
+ enable_assertions = False
+
+ cmd = subprocess.Popen([tool, '-version'], stdout=subprocess.PIPE)
+
+ # Parse the stdout to get the list of registered targets.
+ parse_targets = False
+ for line in cmd.stdout:
+ if parse_targets:
+ m = re.match( r'(.*) - ', line)
+ if m is not None:
+ set_of_targets.add(m.group(1).strip() + '-registered-target')
+ else:
+ break
+ elif "Registered Targets:" in line:
+ parse_targets = True
+
+ if re.search(r'with assertions', line):
+ enable_assertions = True
+
+ return {"set_of_targets": set_of_targets,
+ "enable_assertions": enable_assertions}
+
+llc_props = get_llc_props(os.path.join(llvm_tools_dir, 'llc'))
+if len(llc_props['set_of_targets']) > 0:
+ config.available_features.update(llc_props['set_of_targets'])
+else:
+ lit.fatal('No Targets Registered with the LLVM Tools!')
+
+if llc_props['enable_assertions']:
+ config.available_features.add('asserts')