Michael Kruse b55f7512a7
[Flang] LLVM_ENABLE_RUNTIMES=flang-rt (#110217)
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
2025-02-16 15:39:52 +01:00

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Python

# -*- Python -*-
import os
import lit.formats
# name: The name of this test suite.
config.name = "flang-rt-Unit"
# suffixes: A list of file extensions to treat as test files.
config.suffixes = []
# test_source_root: The root path where unit test binaries are located.
config.test_source_root = os.path.join(config.flangrt_binary_dir, "unittests")
# test_exec_root: The root path where tests should be run.
# lit writes a '.lit_test_times.txt' file into this directory.
config.test_exec_root = config.flang_rt_binary_test_dir
# testFormat: The test format to use to interpret tests.
config.test_format = lit.formats.GoogleTest(config.llvm_build_mode, "Tests")