forked from OSchip/llvm-project
355 lines
13 KiB
Python
355 lines
13 KiB
Python
# -*- Python -*-
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# Configuration file for the 'lit' test runner.
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import os
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import sys
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import re
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import platform
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import subprocess
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import lit.util
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import lit.formats
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from lit.llvm import llvm_config
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# name: The name of this test suite.
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config.name = 'LLVM'
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# testFormat: The test format to use to interpret tests.
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config.test_format = lit.formats.ShTest(not llvm_config.use_lit_shell)
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# suffixes: A list of file extensions to treat as test files. This is overriden
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# by individual lit.local.cfg files in the test subdirectories.
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config.suffixes = ['.ll', '.c', '.cxx', '.test', '.txt', '.s', '.mir']
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# excludes: A list of directories to exclude from the testsuite. The 'Inputs'
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# subdirectories contain auxiliary inputs for various tests in their parent
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# directories.
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config.excludes = ['Inputs', 'CMakeLists.txt', 'README.txt', 'LICENSE.txt']
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# test_source_root: The root path where tests are located.
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config.test_source_root = os.path.dirname(__file__)
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# test_exec_root: The root path where tests should be run.
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config.test_exec_root = os.path.join(config.llvm_obj_root, 'test')
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# Tweak the PATH to include the tools dir.
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llvm_config.with_environment('PATH', config.llvm_tools_dir, append_path=True)
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# Propagate some variables from the host environment.
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llvm_config.with_system_environment(['HOME', 'INCLUDE', 'LIB', 'TMP', 'TEMP', 'ASAN_SYMBOLIZER_PATH', 'MSAN_SYMBOLIZER_PATH'])
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# Set up OCAMLPATH to include newly built OCaml libraries.
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top_ocaml_lib = os.path.join(config.llvm_lib_dir, 'ocaml')
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llvm_ocaml_lib = os.path.join(top_ocaml_lib, 'llvm')
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llvm_config.with_system_environment('OCAMLPATH')
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llvm_config.with_environment('OCAMLPATH', top_ocaml_lib, append_path=True)
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llvm_config.with_environment('OCAMLPATH', llvm_ocaml_lib, append_path=True)
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llvm_config.with_system_environment('CAML_LD_LIBRARY_PATH')
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llvm_config.with_environment('CAML_LD_LIBRARY_PATH', llvm_ocaml_lib, append_path=True)
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# Set up OCAMLRUNPARAM to enable backtraces in OCaml tests.
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llvm_config.with_environment('OCAMLRUNPARAM', 'b')
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# Provide the path to asan runtime lib 'libclang_rt.asan_osx_dynamic.dylib' if
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# available. This is darwin specific since it's currently only needed on darwin.
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def get_asan_rtlib():
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if not "Address" in config.llvm_use_sanitizer or \
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not "Darwin" in config.host_os or \
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not "x86" in config.host_triple:
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return ""
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try:
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import glob
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except:
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print("glob module not found, skipping get_asan_rtlib() lookup")
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return ""
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# The libclang_rt.asan_osx_dynamic.dylib path is obtained using the relative
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# path from the host cc.
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host_lib_dir = os.path.join(os.path.dirname(config.host_cc), "../lib")
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asan_dylib_dir_pattern = host_lib_dir + \
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"/clang/*/lib/darwin/libclang_rt.asan_osx_dynamic.dylib"
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found_dylibs = glob.glob(asan_dylib_dir_pattern)
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if len(found_dylibs) != 1:
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return ""
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return found_dylibs[0]
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lli = 'lli'
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# The target triple used by default by lli is the process target triple (some
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# triple appropriate for generating code for the current process) but because
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# we don't support COFF in MCJIT well enough for the tests, force ELF format on
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# Windows. FIXME: the process target triple should be used here, but this is
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# difficult to obtain on Windows.
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if re.search(r'cygwin|mingw32|windows-gnu|windows-msvc|win32', config.host_triple):
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lli += ' -mtriple='+config.host_triple+'-elf'
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config.substitutions.append( ('%lli', lli ) )
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# Similarly, have a macro to use llc with DWARF even when the host is win32.
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llc_dwarf = 'llc'
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if re.search(r'win32', config.target_triple):
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llc_dwarf += ' -mtriple='+config.target_triple.replace('-win32', '-mingw32')
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config.substitutions.append( ('%llc_dwarf', llc_dwarf) )
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# Add site-specific substitutions.
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config.substitutions.append( ('%gold', config.gold_executable) )
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config.substitutions.append( ('%go', config.go_executable) )
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config.substitutions.append( ('%llvmshlibdir', config.llvm_shlib_dir) )
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config.substitutions.append( ('%shlibext', config.llvm_shlib_ext) )
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config.substitutions.append( ('%exeext', config.llvm_exe_ext) )
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config.substitutions.append( ('%python', config.python_executable) )
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config.substitutions.append( ('%host_cc', config.host_cc) )
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# Provide the path to asan runtime lib if available. On darwin, this lib needs
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# to be loaded via DYLD_INSERT_LIBRARIES before libLTO.dylib in case the files
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# to be linked contain instrumented sanitizer code.
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ld64_cmd = config.ld64_executable
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asan_rtlib = get_asan_rtlib()
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if asan_rtlib:
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ld64_cmd = "DYLD_INSERT_LIBRARIES={} {}".format(asan_rtlib, ld64_cmd)
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config.substitutions.append( ('%ld64', ld64_cmd) )
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# OCaml substitutions.
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# Support tests for both native and bytecode builds.
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config.substitutions.append( ('%ocamlc',
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"%s ocamlc -cclib -L%s %s" %
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(config.ocamlfind_executable, config.llvm_lib_dir, config.ocaml_flags)) )
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if config.have_ocamlopt:
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config.substitutions.append( ('%ocamlopt',
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"%s ocamlopt -cclib -L%s -cclib -Wl,-rpath,%s %s" %
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(config.ocamlfind_executable, config.llvm_lib_dir, config.llvm_lib_dir, config.ocaml_flags)) )
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else:
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config.substitutions.append( ('%ocamlopt', "true" ) )
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# For each occurrence of an llvm tool name as its own word, replace it
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# with the full path to the build directory holding that tool. This
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# ensures that we are testing the tools just built and not some random
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# tools that might happen to be in the user's PATH. Thus this list
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# includes every tool placed in $(LLVM_OBJ_ROOT)/$(BuildMode)/bin
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# (llvm_tools_dir in lit parlance).
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# Avoid matching RUN line fragments that are actually part of
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# path names or options or whatever.
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# The regex is a pre-assertion to avoid matching a preceding
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# dot, hyphen, carat, or slash (.foo, -foo, etc.). Some patterns
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# also have a post-assertion to not match a trailing hyphen (foo-).
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NOJUNK = r"(?<!\.|-|\^|/|<)"
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def find_tool_substitution(pattern):
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# Extract the tool name from the pattern. This relies on the tool
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# name being surrounded by \b word match operators. If the
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# pattern starts with "| ", include it in the string to be
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# substituted.
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tool_match = re.match(r"^(\\)?((\| )?)\W+b([0-9A-Za-z-_]+)\\b\W*$",
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pattern)
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tool_pipe = tool_match.group(2)
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tool_name = tool_match.group(4)
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# Did the user specify the tool path + arguments? This allows things like
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# llvm-lit "-Dllc=llc -enable-misched -verify-machineinstrs"
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tool_path = lit_config.params.get(tool_name)
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if tool_path is None:
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tool_path = lit.util.which(tool_name, config.llvm_tools_dir)
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if tool_path is None:
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return tool_name, tool_path, tool_pipe
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if (tool_name == "llc" and
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'LLVM_ENABLE_MACHINE_VERIFIER' in os.environ and
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os.environ['LLVM_ENABLE_MACHINE_VERIFIER'] == "1"):
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tool_path += " -verify-machineinstrs"
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if (tool_name == "llvm-go"):
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tool_path += " go=" + config.go_executable
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return tool_name, tool_path, tool_pipe
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for pattern in [r"\bbugpoint\b(?!-)",
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NOJUNK + r"\bllc\b",
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r"\blli\b",
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r"\bllvm-ar\b",
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r"\bllvm-as\b",
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r"\bllvm-bcanalyzer\b",
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r"\bllvm-config\b",
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r"\bllvm-cov\b",
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r"\bllvm-cxxdump\b",
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r"\bllvm-cvtres\b",
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r"\bllvm-diff\b",
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r"\bllvm-dis\b",
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r"\bllvm-dsymutil\b",
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r"\bllvm-dwarfdump\b",
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r"\bllvm-extract\b",
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r"\bllvm-isel-fuzzer\b",
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r"\bllvm-lib\b",
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r"\bllvm-link\b",
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r"\bllvm-lto\b",
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r"\bllvm-lto2\b",
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r"\bllvm-mc\b",
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r"\bllvm-mcmarkup\b",
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r"\bllvm-modextract\b",
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r"\bllvm-nm\b",
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r"\bllvm-objcopy\b",
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r"\bllvm-objdump\b",
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r"\bllvm-pdbutil\b",
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r"\bllvm-profdata\b",
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r"\bllvm-ranlib\b",
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r"\bllvm-readobj\b",
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r"\bllvm-rtdyld\b",
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r"\bllvm-size\b",
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r"\bllvm-split\b",
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r"\bllvm-strings\b",
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r"\bllvm-tblgen\b",
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r"\bllvm-c-test\b",
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r"\bllvm-cxxfilt\b",
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r"\bllvm-xray\b",
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NOJUNK + r"\bllvm-symbolizer\b",
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NOJUNK + r"\bopt\b",
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r"\bFileCheck\b",
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r"\bobj2yaml\b",
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NOJUNK + r"\bsancov\b",
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NOJUNK + r"\bsanstats\b",
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r"\byaml2obj\b",
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r"\byaml-bench\b",
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r"\bverify-uselistorder\b",
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# Handle these specially as they are strings searched
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# for during testing.
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r"\| \bcount\b",
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r"\| \bnot\b"]:
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tool_name, tool_path, tool_pipe = find_tool_substitution(pattern)
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if not tool_path:
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# Warn, but still provide a substitution.
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lit_config.note('Did not find ' + tool_name + ' in ' + config.llvm_tools_dir)
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tool_path = config.llvm_tools_dir + '/' + tool_name
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config.substitutions.append((pattern, tool_pipe + tool_path))
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# For tools that are optional depending on the config, we won't warn
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# if they're missing.
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for pattern in [r"\bllvm-go\b",
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r"\bllvm-mt\b",
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r"\bKaleidoscope-Ch3\b",
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r"\bKaleidoscope-Ch4\b",
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r"\bKaleidoscope-Ch5\b",
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r"\bKaleidoscope-Ch6\b",
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r"\bKaleidoscope-Ch7\b",
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r"\bKaleidoscope-Ch8\b"]:
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tool_name, tool_path, tool_pipe = find_tool_substitution(pattern)
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if not tool_path:
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# Provide a substitution anyway, for the sake of consistent errors.
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tool_path = config.llvm_tools_dir + '/' + tool_name
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config.substitutions.append((pattern, tool_pipe + tool_path))
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### Targets
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config.targets = frozenset(config.targets_to_build.split())
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for arch in config.targets_to_build.split():
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config.available_features.add(arch.lower() + '-registered-target')
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### Features
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# Others/can-execute.txt
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if sys.platform not in ['win32']:
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config.available_features.add('can-execute')
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config.available_features.add('not_COFF')
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# Loadable module
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# FIXME: This should be supplied by Makefile or autoconf.
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if sys.platform in ['win32', 'cygwin']:
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loadable_module = (config.enable_shared == 1)
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else:
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loadable_module = True
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if loadable_module:
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config.available_features.add('loadable_module')
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# Static libraries are not built if BUILD_SHARED_LIBS is ON.
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if not config.build_shared_libs:
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config.available_features.add("static-libs")
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# Direct object generation
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if not 'hexagon' in config.target_triple:
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config.available_features.add("object-emission")
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# LLVM can be configured with an empty default triple
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# Some tests are "generic" and require a valid default triple
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if config.target_triple:
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config.available_features.add("default_triple")
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import subprocess
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def have_ld_plugin_support():
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if not os.path.exists(os.path.join(config.llvm_shlib_dir, 'LLVMgold.so')):
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return False
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ld_cmd = subprocess.Popen([config.gold_executable, '--help'], stdout = subprocess.PIPE, env={'LANG': 'C'})
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ld_out = ld_cmd.stdout.read().decode()
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ld_cmd.wait()
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if not '-plugin' in ld_out:
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return False
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# check that the used emulations are supported.
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emu_line = [l for l in ld_out.split('\n') if 'supported emulations' in l]
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if len(emu_line) != 1:
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return False
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emu_line = emu_line[0]
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fields = emu_line.split(':')
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if len(fields) != 3:
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return False
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emulations = fields[2].split()
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if 'elf_x86_64' not in emulations:
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return False
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if 'elf32ppc' in emulations:
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config.available_features.add('ld_emu_elf32ppc')
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ld_version = subprocess.Popen([config.gold_executable, '--version'], stdout = subprocess.PIPE, env={'LANG': 'C'})
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if not 'GNU gold' in ld_version.stdout.read().decode():
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return False
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ld_version.wait()
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return True
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if have_ld_plugin_support():
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config.available_features.add('ld_plugin')
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def have_ld64_plugin_support():
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if not config.llvm_tool_lto_build or config.ld64_executable == '':
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return False
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ld_cmd = subprocess.Popen([config.ld64_executable, '-v'], stderr = subprocess.PIPE)
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ld_out = ld_cmd.stderr.read().decode()
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ld_cmd.wait()
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if 'ld64' not in ld_out or 'LTO' not in ld_out:
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return False
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return True
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if have_ld64_plugin_support():
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config.available_features.add('ld64_plugin')
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# Ask llvm-config about asserts and global-isel.
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llvm_config.feature_config(
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[('--assertion-mode', {'ON' : 'asserts'}),
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('--has-global-isel', {'ON' : 'global-isel'})])
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if 'darwin' == sys.platform:
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try:
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sysctl_cmd = subprocess.Popen(['sysctl', 'hw.optional.fma'],
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stdout = subprocess.PIPE)
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except OSError:
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print("Could not exec sysctl")
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result = sysctl_cmd.stdout.read().decode('ascii')
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if -1 != result.find("hw.optional.fma: 1"):
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config.available_features.add('fma3')
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sysctl_cmd.wait()
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# .debug_frame is not emitted for targeting Windows x64.
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if not re.match(r'^x86_64.*-(mingw32|windows-gnu|win32)', config.target_triple):
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config.available_features.add('debug_frame')
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if config.have_libxar:
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config.available_features.add('xar')
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if config.llvm_libxml2_enabled == "1":
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config.available_features.add('libxml2')
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