b55f7512a7
Extract Flang's runtime library to use the LLVM_ENABLE_RUNTIME mechanism. It will only become active when `LLVM_ENABLE_RUNTIMES=flang-rt` is used, which also changes the `FLANG_INCLUDE_RUNTIME` to `OFF` so the old runtime build rules do not conflict. This also means that unless `LLVM_ENABLE_RUNTIMES=flang-rt` is passed, nothing changes with the current build process. Motivation: * Consistency with LLVM's other runtime libraries (compiler-rt, libc, libcxx, openmp offload, ...) * Allows compiling the runtime for multiple targets at once using the LLVM_RUNTIME_TARGETS configuration options * Installs the runtime into the compiler's per-target resource directory so it can be automatically found even when cross-compiling Also see RFC discussion at https://discourse.llvm.org/t/rfc-use-llvm-enable-runtimes-for-flangs-runtime/80826
101 lines
2.5 KiB
Python
101 lines
2.5 KiB
Python
# -*- Python -*-
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import shlex
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import lit.util
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from lit.llvm import llvm_config
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from lit.llvm.subst import ToolSubst, FindTool
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def shjoin(args, sep=" "):
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return sep.join([shlex.quote(arg) for arg in args])
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# Configuration file for the 'lit' test runner.
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# name: The name of this test suite.
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config.name = "flang-rt"
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# testFormat: The test format to use to interpret tests.
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#
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# For now we require '&&' between commands, until they get globally killed and
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# the test runner updated.
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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.
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config.suffixes = [
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".c",
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".cpp",
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".f",
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".F",
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".ff",
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".FOR",
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".for",
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".f77",
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".f90",
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".F90",
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".ff90",
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".f95",
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".F95",
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".ff95",
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".fpp",
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".FPP",
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".cuf",
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".CUF",
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".f18",
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".F18",
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".f03",
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".F03",
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".f08",
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".F08",
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".ll",
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".fir",
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".mlir",
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]
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llvm_config.use_default_substitutions()
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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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# lit writes a '.lit_test_times.txt' file into this directory.
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config.test_exec_root = config.flang_rt_binary_test_dir
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# On MacOS, -isysroot is needed to build binaries.
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isysroot_flag = []
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if config.osx_sysroot:
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isysroot_flag = ["-isysroot", config.osx_sysroot]
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tools = [
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ToolSubst(
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"%flang",
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command=config.flang,
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extra_args=isysroot_flag,
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unresolved="fatal",
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),
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ToolSubst(
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"%clang",
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command=FindTool("clang"),
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extra_args=isysroot_flag,
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unresolved="fatal",
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),
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ToolSubst("%cc", command=config.cc, extra_args=isysroot_flag, unresolved="fatal"),
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]
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llvm_config.add_tool_substitutions(tools)
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# Let tests find LLVM's standard tools (FileCheck, split-file, not, ...)
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llvm_config.with_environment("PATH", config.llvm_tools_dir, append_path=True)
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# Include path for C headers that define Flang's Fortran ABI.
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config.substitutions.append(
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("%include", os.path.join(config.flang_source_dir, "include"))
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)
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# Library path of libflang_rt.runtime.a (for lib search path when using non-Flang driver for linking)
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config.substitutions.append(("%libdir", config.flang_rt_output_resource_lib_dir))
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# For CUDA offloading, additional steps (device linking) and libraries (cudart) are needed.
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if config.flang_rt_experimental_offload_support == "CUDA":
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config.available_features.add("offload-cuda")
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