[lit] Rename lld and clang lit configs to end in .py

This follows in line with a previous patch of renaming LLVM's.

Working on these files is difficult in certain operating systems
and/or environments that don't like handling python code with a
non .py file extension.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@313892 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 351 insertions, 0 deletions

diff --git a/test/lit.cfg.py b/test/lit.cfg.py
new file mode 100644
index 0000000000..f1bb4578dc
--- /dev/null
+++ b/test/lit.cfg.py
@@ -0,0 +1,351 @@
+# -*- Python -*-
+
+import os
+import platform
+import re
+import subprocess
+import tempfile
+
+import lit.formats
+import lit.util
+
+from lit.llvm import llvm_config
+
+# Configuration file for the 'lit' test runner.
+
+# name: The name of this test suite.
+config.name = 'Clang'
+
+# 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.
+config.test_format = lit.formats.ShTest(not llvm_config.use_lit_shell)
+
+# suffixes: A list of file extensions to treat as test files.
+config.suffixes = ['.c', '.cpp', '.cppm', '.m', '.mm', '.cu', '.ll', '.cl', '.s', '.S', '.modulemap', '.test', '.rs']
+
+# excludes: A list of directories to exclude from the testsuite. The 'Inputs'
+# subdirectories contain auxiliary inputs for various tests in their parent
+# directories.
+config.excludes = ['Inputs', 'CMakeLists.txt', 'README.txt', 'LICENSE.txt']
+
+# 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.
+config.test_exec_root = os.path.join(config.clang_obj_root, 'test')
+
+# 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',
+#                  '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')
+
+llvm_config.clear_environment(possibly_dangerous_env_vars)
+
+# Tweak the PATH to include the tools dir and the scripts dir.
+llvm_config.with_environment('PATH', [config.llvm_tools_dir, config.clang_tools_dir], append_path=True)
+
+llvm_config.with_environment('LD_LIBRARY_PATH', [config.llvm_shlib_dir, config.llvm_libs_dir], append_path=True)
+
+# Propagate path to symbolizer for ASan/MSan.
+llvm_config.with_system_environment(['ASAN_SYMBOLIZER_PATH', 'MSAN_SYMBOLIZER_PATH'])
+
+# Discover the 'clang' and 'clangcc' to use.
+
+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_config.fatal("couldn't find 'clang' program, try setting "
+                         "CLANG in your environment")
+
+    return clang
+
+config.clang = inferClang(config.environment['PATH']).replace('\\', '/')
+if not lit_config.quiet:
+    lit_config.note('using clang: %r' % config.clang)
+
+# Plugins (loadable modules)
+# TODO: This should be supplied by Makefile or autoconf.
+if sys.platform in ['win32', 'cygwin']:
+    has_plugins = config.enable_shared
+else:
+    has_plugins = True
+
+if has_plugins and config.llvm_plugin_ext:
+    config.available_features.add('plugins')
+
+config.substitutions.append( ('%llvmshlibdir', config.llvm_shlib_dir) )
+config.substitutions.append( ('%pluginext', config.llvm_plugin_ext) )
+config.substitutions.append( ('%PATH%', config.environment['PATH']) )
+
+if config.clang_examples:
+    config.available_features.add('examples')
+
+# 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,
+                           env=config.environment)
+    if not cmd.stdout:
+      lit_config.fatal("Couldn't find the include dir for Clang ('%s')" % clang)
+    dir = cmd.stdout.read().strip()
+    if sys.platform in ['win32'] and not llvm_config.use_lit_shell:
+        # Don't pass dosish path separator to msys bash.exe.
+        dir = dir.replace('\\', '/')
+    # Ensure the result is an ascii string, across Python2.5+ - Python3.
+    return str(dir.decode('ascii'))
+
+def makeItaniumABITriple(triple):
+    m = re.match(r'(\w+)-(\w+)-(\w+)', triple)
+    if not m:
+      lit_config.fatal("Could not turn '%s' into Itanium ABI triple" % triple)
+    if m.group(3).lower() != 'win32':
+      # All non-win32 triples use the Itanium ABI.
+      return triple
+    return m.group(1) + '-' + m.group(2) + '-mingw32'
+
+def makeMSABITriple(triple):
+    m = re.match(r'(\w+)-(\w+)-(\w+)', triple)
+    if not m:
+      lit_config.fatal("Could not turn '%s' into MS ABI triple" % triple)
+    isa = m.group(1).lower()
+    vendor = m.group(2).lower()
+    os = m.group(3).lower()
+    if os == 'win32':
+      # If the OS is win32, we're done.
+      return triple
+    if isa.startswith('x86') or isa == 'amd64' or re.match(r'i\d86', isa):
+      # For x86 ISAs, adjust the OS.
+      return isa + '-' + vendor + '-win32'
+    # -win32 is not supported for non-x86 targets; use a default.
+    return 'i686-pc-win32'
+
+config.substitutions.append( ('%clang_analyze_cc1',
+                              '%clang_cc1 -analyze %analyze') )
+config.substitutions.append( ('%clang_cc1',
+                              '%s -cc1 -internal-isystem %s -nostdsysteminc'
+                              % (config.clang,
+                                 getClangBuiltinIncludeDir(config.clang))) )
+config.substitutions.append( ('%clang_cpp', ' ' + config.clang +
+                              ' --driver-mode=cpp '))
+config.substitutions.append( ('%clang_cl', ' ' + config.clang +
+                              ' --driver-mode=cl '))
+config.substitutions.append( ('%clangxx', ' ' + config.clang +
+                              ' --driver-mode=g++ '))
+config.substitutions.append( ('%clang', ' ' + config.clang + ' ') )
+config.substitutions.append( ('%test_debuginfo', ' ' + config.llvm_src_root + '/utils/test_debuginfo.pl ') )
+config.substitutions.append( ('%itanium_abi_triple', makeItaniumABITriple(config.target_triple)) )
+config.substitutions.append( ('%ms_abi_triple', makeMSABITriple(config.target_triple)) )
+config.substitutions.append( ('%resource_dir', getClangBuiltinIncludeDir(config.clang)) )
+config.substitutions.append( ('%python', config.python_executable) )
+
+# The host triple might not be set, at least if we're compiling clang from
+# an already installed llvm.
+if config.host_triple and config.host_triple != '@LLVM_HOST_TRIPLE@':
+    config.substitutions.append( ('%target_itanium_abi_host_triple', '--target=%s' % makeItaniumABITriple(config.host_triple)) )
+else:
+    config.substitutions.append( ('%target_itanium_abi_host_triple', '') )
+
+config.substitutions.append( ('%src_include_dir', config.clang_src_dir + '/include') )
+
+# 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 -analyze ',
+     """*** Do not use 'clang -cc1 -analyze' in tests, use '%clang_analyze_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'. ***""") )
+config.substitutions.append(
+    (' %clang-cpp ',
+     """*** invalid substitution, use '%clang_cpp'. ***""") )
+config.substitutions.append(
+    (' %clang-cl ',
+     """*** invalid substitution, use '%clang_cl'. ***""") )
+
+# For each occurrence of a clang 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.
+tool_dirs = os.path.pathsep.join((config.clang_tools_dir, config.llvm_tools_dir))
+
+# Regex assertions to reject neighbor hyphens/dots (seen in some tests).
+# For example, don't match 'clang-check-' or '.clang-format'.
+NoPreHyphenDot = r"(?<!(-|\.))"
+NoPostHyphenDot = r"(?!(-|\.))"
+NoPostBar = r"(?!(/|\\))"
+
+tool_patterns = [r"\bFileCheck\b",
+                 r"\bc-index-test\b",
+                 NoPreHyphenDot + r"\bclang-check\b" + NoPostHyphenDot,
+                 NoPreHyphenDot + r"\bclang-diff\b" + NoPostHyphenDot,
+                 NoPreHyphenDot + r"\bclang-format\b" + NoPostHyphenDot,
+                 # FIXME: Some clang test uses opt?
+                 NoPreHyphenDot + r"\bopt\b" + NoPostBar + NoPostHyphenDot,
+                 # Handle these specially as they are strings searched
+                 # for during testing.
+                 r"\| \bcount\b",
+                 r"\| \bnot\b"]
+
+if config.clang_examples:
+    tool_patterns.append(NoPreHyphenDot + r"\bclang-interpreter\b" + NoPostHyphenDot)
+
+for pattern in tool_patterns:
+    # 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.
+    tool_match = re.match(r"^(\\)?((\| )?)\W+b([0-9A-Za-z-_]+)\\b\W*$",
+                          pattern)
+    tool_pipe = tool_match.group(2)
+    tool_name = tool_match.group(4)
+    tool_path = lit.util.which(tool_name, tool_dirs)
+    if not tool_path:
+        # Warn, but still provide a substitution.
+        lit_config.note('Did not find ' + tool_name + ' in ' + tool_dirs)
+        tool_path = config.clang_tools_dir + '/' + tool_name
+    config.substitutions.append((pattern, tool_pipe + tool_path))
+
+###
+
+# Set available features we allow tests to conditionalize on.
+#
+if config.clang_default_cxx_stdlib != '':
+    config.available_features.add('default-cxx-stdlib-set')
+
+# Enabled/disabled features
+if config.clang_staticanalyzer:
+    config.available_features.add("staticanalyzer")
+
+    if config.clang_staticanalyzer_z3 == '1':
+        config.available_features.add("z3")
+
+# 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')
+
+# ANSI escape sequences in non-dumb terminal
+if platform.system() not in ['Windows']:
+    config.available_features.add('ansi-escape-sequences')
+
+# Capability to print utf8 to the terminal.
+# Windows expects codepage, unless Wide API.
+if platform.system() not in ['Windows']:
+    config.available_features.add('utf8-capable-terminal')
+
+# Support for libgcc runtime. Used to rule out tests that require
+# clang to run with -rtlib=libgcc.
+if platform.system() not in ['Darwin', 'Fuchsia']:
+    config.available_features.add('libgcc')
+
+# Case-insensitive file system
+def is_filesystem_case_insensitive():
+    handle, path = tempfile.mkstemp(prefix='case-test', dir=config.test_exec_root)
+    isInsensitive = os.path.exists(
+        os.path.join(
+            os.path.dirname(path),
+            os.path.basename(path).upper()
+            ))
+    os.close(handle)
+    os.remove(path)
+    return isInsensitive
+
+if is_filesystem_case_insensitive():
+    config.available_features.add('case-insensitive-filesystem')
+
+# Tests that require the /dev/fd filesystem.
+if os.path.exists("/dev/fd/0") and sys.platform not in ['cygwin']:
+    config.available_features.add('dev-fd-fs')
+
+# Not set on native MS environment.
+if not re.match(r'.*-win32$', config.target_triple):
+    config.available_features.add('non-ms-sdk')
+
+# Not set on native PS4 environment.
+if not re.match(r'.*-scei-ps4', config.target_triple):
+    config.available_features.add('non-ps4-sdk')
+
+# [PR8833] LLP64-incompatible tests
+if not re.match(r'^x86_64.*-(win32|mingw32|windows-gnu)$', config.target_triple):
+    config.available_features.add('LP64')
+
+# [PR12920] "clang-driver" -- set if gcc driver is not used.
+if not re.match(r'.*-(cygwin)$', config.target_triple):
+    config.available_features.add('clang-driver')
+
+# [PR18856] Depends to remove opened file. On win32, a file could be removed
+# only if all handles were closed.
+if platform.system() not in ['Windows']:
+    config.available_features.add('can-remove-opened-file')
+
+def calculate_arch_features(arch_string):
+    features = []
+    for arch in arch_string.split():
+        features.append(arch.lower() + '-registered-target')
+    return features
+
+llvm_config.feature_config(
+  [('--assertion-mode', {'ON' : 'asserts'}),
+   ('--cxxflags', {r'-D_GLIBCXX_DEBUG\b' : 'libstdcxx-safe-mode'}),
+   ('--targets-built', calculate_arch_features)
+  ])
+
+if lit.util.which('xmllint'):
+    config.available_features.add('xmllint')
+
+if config.enable_backtrace:
+    config.available_features.add("backtrace")
+
+# Check if we should allow outputs to console.
+run_console_tests = int(lit_config.params.get('enable_console', '0'))
+if run_console_tests != 0:
+  config.available_features.add('console')
+
+lit.util.usePlatformSdkOnDarwin(config, lit_config)
+macOSSDKVersion = lit.util.findPlatformSdkVersionOnMacOS(config, lit_config)
+if macOSSDKVersion is not None:
+    config.available_features.add('macos-sdk-' + macOSSDKVersion)