blob: 3c154c5899ec1cfe1b10cec6369787d551419df4 [file] [log] [blame]
# -*- Python -*-
# Configuration file for the 'lit' test runner.
import os
import sys
import re
import platform
import subprocess
import lit.util
import lit.formats
from lit.llvm import llvm_config
from lit.llvm.subst import FindTool
from lit.llvm.subst import ToolSubst
# name: The name of this test suite. = 'LLVM'
# testFormat: The test format to use to interpret tests.
config.test_format = lit.formats.ShTest(not llvm_config.use_lit_shell)
# suffixes: A list of file extensions to treat as test files. This is overriden
# by individual lit.local.cfg files in the test subdirectories.
config.suffixes = ['.ll', '.c', '.cxx', '.test', '.txt', '.s', '.mir']
# 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.llvm_obj_root, 'test')
# Tweak the PATH to include the tools dir.
llvm_config.with_environment('PATH', config.llvm_tools_dir, append_path=True)
# Propagate some variables from the host environment.
# Set up OCAMLPATH to include newly built OCaml libraries.
top_ocaml_lib = os.path.join(config.llvm_lib_dir, 'ocaml')
llvm_ocaml_lib = os.path.join(top_ocaml_lib, 'llvm')
llvm_config.with_environment('OCAMLPATH', top_ocaml_lib, append_path=True)
llvm_config.with_environment('OCAMLPATH', llvm_ocaml_lib, append_path=True)
'CAML_LD_LIBRARY_PATH', llvm_ocaml_lib, append_path=True)
# Set up OCAMLRUNPARAM to enable backtraces in OCaml tests.
llvm_config.with_environment('OCAMLRUNPARAM', 'b')
# Provide the path to asan runtime lib 'libclang_rt.asan_osx_dynamic.dylib' if
# available. This is darwin specific since it's currently only needed on darwin.
def get_asan_rtlib():
if not 'Address' in config.llvm_use_sanitizer or \
not 'Darwin' in config.host_os or \
not 'x86' in config.host_triple:
return ''
import glob
print('glob module not found, skipping get_asan_rtlib() lookup')
return ''
# The libclang_rt.asan_osx_dynamic.dylib path is obtained using the relative
# path from the host cc.
host_lib_dir = os.path.join(os.path.dirname(config.host_cc), '../lib')
asan_dylib_dir_pattern = host_lib_dir + \
found_dylibs = glob.glob(asan_dylib_dir_pattern)
if len(found_dylibs) != 1:
return ''
return found_dylibs[0]
# Add site-specific substitutions.
config.substitutions.append(('%llvmshlibdir', config.llvm_shlib_dir))
config.substitutions.append(('%shlibext', config.llvm_shlib_ext))
config.substitutions.append(('%exeext', config.llvm_exe_ext))
lli_args = []
# The target triple used by default by lli is the process target triple (some
# triple appropriate for generating code for the current process) but because
# we don't support COFF in MCJIT well enough for the tests, force ELF format on
# Windows. FIXME: the process target triple should be used here, but this is
# difficult to obtain on Windows.
if'cygwin|windows-gnu|windows-msvc', config.host_triple):
lli_args = ['-mtriple=' + config.host_triple + '-elf']
llc_args = []
# Similarly, have a macro to use llc with DWARF even when the host is Windows
if'windows-msvc', config.target_triple):
llc_args = [' -mtriple=' +
config.target_triple.replace('-msvc', '-gnu')]
# Provide the path to asan runtime lib if available. On darwin, this lib needs
# to be loaded via DYLD_INSERT_LIBRARIES before libLTO.dylib in case the files
# to be linked contain instrumented sanitizer code.
ld64_cmd = config.ld64_executable
asan_rtlib = get_asan_rtlib()
if asan_rtlib:
ld64_cmd = 'DYLD_INSERT_LIBRARIES={} {}'.format(asan_rtlib, ld64_cmd)
ocamlc_command = '%s ocamlc -cclib -L%s %s' % (
config.ocamlfind_executable, config.llvm_lib_dir, config.ocaml_flags)
ocamlopt_command = 'true'
if config.have_ocamlopt:
ocamlopt_command = '%s ocamlopt -cclib -L%s -cclib -Wl,-rpath,%s %s' % (
config.ocamlfind_executable, config.llvm_lib_dir, config.llvm_lib_dir, config.ocaml_flags)
opt_viewer_cmd = '%s %s/tools/opt-viewer/' % (sys.executable, config.llvm_src_root)
tools = [
ToolSubst('%lli', FindTool('lli'), post='.', extra_args=lli_args),
ToolSubst('%llc_dwarf', FindTool('llc'), extra_args=llc_args),
ToolSubst('%go', config.go_executable, unresolved='ignore'),
ToolSubst('%gold', config.gold_executable, unresolved='ignore'),
ToolSubst('%ld64', ld64_cmd, unresolved='ignore'),
ToolSubst('%ocamlc', ocamlc_command, unresolved='ignore'),
ToolSubst('%ocamlopt', ocamlopt_command, unresolved='ignore'),
ToolSubst('%opt-viewer', opt_viewer_cmd),
ToolSubst('%llvm-objcopy', FindTool('llvm-objcopy')),
ToolSubst('%llvm-strip', FindTool('llvm-strip')),
# FIXME: Why do we have both `lli` and `%lli` that do slightly different things?
'dsymutil', 'lli', 'lli-child-target', 'llvm-ar', 'llvm-as',
'llvm-bcanalyzer', 'llvm-config', 'llvm-cov', 'llvm-cxxdump', 'llvm-cvtres',
'llvm-diff', 'llvm-dis', 'llvm-dwarfdump', 'llvm-exegesis', 'llvm-extract',
'llvm-isel-fuzzer', 'llvm-opt-fuzzer', 'llvm-lib', 'llvm-link', 'llvm-lto',
'llvm-lto2', 'llvm-mc', 'llvm-mca', 'llvm-modextract', 'llvm-nm',
'llvm-objcopy', 'llvm-objdump', 'llvm-pdbutil', 'llvm-profdata',
'llvm-ranlib', 'llvm-readelf', 'llvm-readobj', 'llvm-rtdyld', 'llvm-size',
'llvm-split', 'llvm-strings', 'llvm-strip', 'llvm-tblgen', 'llvm-undname',
'llvm-c-test', 'llvm-cxxfilt', 'llvm-xray', 'yaml2obj', 'obj2yaml',
'yaml-bench', 'verify-uselistorder', 'bugpoint', 'llc', 'llvm-symbolizer',
'opt', 'sancov', 'sanstats'])
# The following tools are optional
ToolSubst('llvm-go', unresolved='ignore'),
ToolSubst('llvm-mt', unresolved='ignore'),
ToolSubst('Kaleidoscope-Ch3', unresolved='ignore'),
ToolSubst('Kaleidoscope-Ch4', unresolved='ignore'),
ToolSubst('Kaleidoscope-Ch5', unresolved='ignore'),
ToolSubst('Kaleidoscope-Ch6', unresolved='ignore'),
ToolSubst('Kaleidoscope-Ch7', unresolved='ignore'),
ToolSubst('Kaleidoscope-Ch8', unresolved='ignore')])
llvm_config.add_tool_substitutions(tools, config.llvm_tools_dir)
# Targets
config.targets = frozenset(config.targets_to_build.split())
for arch in config.targets_to_build.split():
config.available_features.add(arch.lower() + '-registered-target')
# Features
known_arches = ["x86_64", "mips64", "ppc64", "aarch64"]
if (config.host_ldflags.find("-m32") < 0
and any(config.llvm_host_triple.startswith(x) for x in known_arches)):
# Others/can-execute.txt
if sys.platform not in ['win32']:
# Loadable module
# FIXME: This should be supplied by Makefile or autoconf.
if sys.platform in ['win32', 'cygwin']:
loadable_module = (config.enable_shared == 1)
loadable_module = True
if loadable_module:
# Static libraries are not built if BUILD_SHARED_LIBS is ON.
if not config.build_shared_libs and not config.link_llvm_dylib:
def have_cxx_shared_library():
readobj_exe = lit.util.which('llvm-readobj', config.llvm_tools_dir)
if not readobj_exe:
print('llvm-readobj not found')
return False
readobj_cmd = subprocess.Popen(
[readobj_exe, '-needed-libs', readobj_exe], stdout=subprocess.PIPE)
except OSError:
print('could not exec llvm-readobj')
return False
readobj_out ='ascii')
regex = re.compile(r'(libc\+\+|libstdc\+\+|msvcp).*\.(so|dylib|dll)')
needed_libs = False
for line in readobj_out.splitlines():
if 'NeededLibraries [' in line:
needed_libs = True
if ']' in line:
needed_libs = False
if needed_libs and
return True
return False
if have_cxx_shared_library():
# Direct object generation
if not 'hexagon' in config.target_triple:
# LLVM can be configured with an empty default triple
# Some tests are "generic" and require a valid default triple
if config.target_triple:
import subprocess
def have_ld_plugin_support():
if not os.path.exists(os.path.join(config.llvm_shlib_dir, 'LLVMgold' + config.llvm_shlib_ext)):
return False
ld_cmd = subprocess.Popen(
[config.gold_executable, '--help'], stdout=subprocess.PIPE, env={'LANG': 'C'})
ld_out =
if not '-plugin' in ld_out:
return False
# check that the used emulations are supported.
emu_line = [l for l in ld_out.split('\n') if 'supported emulations' in l]
if len(emu_line) != 1:
return False
emu_line = emu_line[0]
fields = emu_line.split(':')
if len(fields) != 3:
return False
emulations = fields[2].split()
if 'elf_x86_64' not in emulations:
return False
if 'elf32ppc' in emulations:
ld_version = subprocess.Popen(
[config.gold_executable, '--version'], stdout=subprocess.PIPE, env={'LANG': 'C'})
if not 'GNU gold' in
return False
return True
if have_ld_plugin_support():
def have_ld64_plugin_support():
if not config.llvm_tool_lto_build or config.ld64_executable == '':
return False
ld_cmd = subprocess.Popen(
[config.ld64_executable, '-v'], stderr=subprocess.PIPE)
ld_out =
if 'ld64' not in ld_out or 'LTO' not in ld_out:
return False
return True
if have_ld64_plugin_support():
# Ask llvm-config about asserts and global-isel.
[('--assertion-mode', {'ON': 'asserts'}),
('--has-global-isel', {'ON': 'global-isel'})])
if 'darwin' == sys.platform:
sysctl_cmd = subprocess.Popen(['sysctl', 'hw.optional.fma'],
except OSError:
print('Could not exec sysctl')
result ='ascii')
if -1 != result.find('hw.optional.fma: 1'):
# .debug_frame is not emitted for targeting Windows x64.
if not re.match(r'^x86_64.*-(windows-gnu|windows-msvc)', config.target_triple):
if config.have_libxar:
if config.enable_threads:
if config.llvm_libxml2_enabled == '1':
if config.have_opt_viewer_modules: