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[CI] Build/test LLVM/Clang/libcxx on shared libc changes (#198379)

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libc is now being used/planned on being used in more places around the
repo, particularly inside of APFloat, for constexpr evaluation, and
inside of libc++. Setup premerge to handle this. I'm only aware of the
APFloat planned usage that should reland soon, but running the clang
tests should not hurt.
This commit is contained in:
Aiden Grossman 2026-05-18 15:09:29 -07:00 committed by GitHub
parent 23fdc1e9cd
commit 707f7e5212
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GPG key ID: B5690EEEBB952194
2 changed files with 22 additions and 1 deletions
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6
.ci/compute_projects.py
View file

@ -40,6 +40,7 @@ PROJECT_DEPENDENCIES = {
# just invert the dependencies list to give more control over what exactly is
# tested.
DEPENDENTS_TO_TEST = {
"libc-shared": {"llvm", "clang"},
"llvm": {
"bolt",
"clang",
@ -83,6 +84,7 @@ DEPENDENT_RUNTIMES_TO_TEST = {
"clang": {"compiler-rt", "libc"},
"clang-tools-extra": {"libc"},
"libc": {"libc"},
"libc-shared": {"libcxx", "libcxxabi", "libunwind"},
"libclc": {"libclc"},
"compiler-rt": {"compiler-rt"},
"flang": {"flang-rt"},
@ -183,10 +185,12 @@ META_PROJECTS = {
(".github", "workflows", "premerge.yaml"): ".ci",
("third-party",): ".ci",
("llvm", "utils", "lit"): "lit",
("libc", "shared"): "libc-shared",
("libc", "src", "__support", "math"): "libc-shared",
}
# Projects that should run tests but cannot be explicitly built.
SKIP_BUILD_PROJECTS = ["CIR", "lit"]
SKIP_BUILD_PROJECTS = ["CIR", "lit", "libc-shared"]
# Projects that should not run any tests. These need to be metaprojects.
SKIP_PROJECTS = ["docs", "gn"]

17
.ci/compute_projects_test.py
View file

@ -477,6 +477,23 @@ class TestComputeProjects(unittest.TestCase):
self.assertEqual(env_variables["runtimes_check_targets"], "")
self.assertEqual(env_variables["runtimes_check_targets_needs_reconfig"], "")
def test_libc_shared(self):
env_variables = compute_projects.get_env_variables(
["libc/shared/math/acos.h"], "Linux"
)
self.assertEqual(env_variables["projects_to_build"], "clang;lld;llvm")
self.assertEqual(
env_variables["project_check_targets"], "check-clang check-llvm"
)
self.assertEqual(
env_variables["runtimes_to_build"], "libc;libcxx;libcxxabi;libunwind"
)
self.assertEqual(
env_variables["runtimes_check_targets"],
"check-cxx check-cxxabi check-libc check-unwind",
)
self.assertEqual(env_variables["runtimes_check_targets_needs_reconfig"], "")
if __name__ == "__main__":
unittest.main()