[libc++] Fix name of is_always_lock_free test which was never being run #106077

ldionne · 2024-08-26T14:11:30Z

No description provided.

llvmbot · 2024-08-26T14:12:12Z

@llvm/pr-subscribers-libcxx

Author: Louis Dionne (ldionne)

Changes

Full diff: https://github.com/llvm/llvm-project/pull/106077.diff

1 Files Affected:

(renamed) libcxx/test/std/atomics/atomics.lockfree/is_always_lock_free.pass.cpp ()

diff --git a/libcxx/test/std/atomics/atomics.lockfree/is_always_lock_free.cpp b/libcxx/test/std/atomics/atomics.lockfree/is_always_lock_free.pass.cpp
similarity index 100%
rename from libcxx/test/std/atomics/atomics.lockfree/is_always_lock_free.cpp
rename to libcxx/test/std/atomics/atomics.lockfree/is_always_lock_free.pass.cpp

tru · 2024-09-01T08:19:36Z

Seems like this PR caused tests to fail. Can you have a look @ldionne

tru · 2024-09-10T14:45:46Z

ping

tru · 2024-09-11T08:21:18Z

@philnik777 you approved it - but the tests are failing - I did re-run them and it still failed. Would it still be safe to merge this?

philnik777 · 2024-09-11T08:52:39Z

@philnik777 you approved it - but the tests are failing - I did re-run them and it still failed. Would it still be safe to merge this?

Not as-is. We need to suppress the diagnostic that causes the test to fail, but that's a minor change.

ldionne · 2024-09-17T14:21:44Z

Sorry, I dropped the ball on this cause I was absorbed by the modules work. Looking now.

tru · 2024-09-24T06:35:21Z

Seems like there are still a lot of CI problems here?

ldionne · 2024-10-01T16:09:00Z

libcxx/test/std/atomics/atomics.lockfree/is_always_lock_free.pass.cpp

 // UNSUPPORTED: c++03, c++11, c++14
+// XFAIL: LIBCXX-PICOLIBC-FIXME


@domin144 @mplatings I don't quite understand why this fails. There seems to be missing the __atomic_is_lock_free intrinsic on the Picolibc setup, but the other atomic tests are working. Could you take a look?

@DavidSpickett

I will merge this because we want to cherry-pick onto LLVM 19 and it's better to have this test for most platforms than for none of them, but I would really appreciate if we could address this in a follow-up.

ldionne · 2024-10-02T12:54:54Z

/cherry-pick b456619

…un (llvm#106077) (cherry picked from commit b456619)

llvmbot · 2024-10-02T13:00:14Z

/pull-request #110838

…un (llvm#106077)

Currently this test is completely xfailed as part of the patch #106077. But this test works on A and R profile, not in v7M profile. Because the test contain cases in which m-profile will fail for atomic types greater than 4 bytes in size.

…un (llvm#106077) (cherry picked from commit b456619)

cpplearner · 2024-10-19T03:22:03Z

libcxx/test/std/atomics/atomics.lockfree/is_always_lock_free.pass.cpp

@@ -45,7 +51,8 @@ void check_always_lock_free(std::atomic<T> const& a) {

  // In all cases, also sanity-check it based on the implication always-lock-free => lock-free.
  if (is_always_lock_free) {
-    std::same_as<bool> decltype(auto) is_lock_free = a.is_lock_free();
+    auto is_lock_free = a.is_lock_free();
+    ASSERT_SAME_TYPE(decltype(is_always_lock_free), bool const);


Suggested change

ASSERT_SAME_TYPE(decltype(is_always_lock_free), bool const);

ASSERT_SAME_TYPE(decltype(is_lock_free), bool);

Would you open a PR to fix this?

@ldionne

… `-Wno-psabi` (#113608) MSVC doesn't understand `-Wno-psabi`, which was introduced here by @ldionne in #106077. Using `ADDITIONAL_COMPILE_FLAGS(gcc-style-warnings)` (implemented by #75317) avoids passing this to MSVC.

@ldionne

… `-Wno-psabi` (llvm#113608) MSVC doesn't understand `-Wno-psabi`, which was introduced here by @ldionne in llvm#106077. Using `ADDITIONAL_COMPILE_FLAGS(gcc-style-warnings)` (implemented by llvm#75317) avoids passing this to MSVC.

ldionne requested a review from a team as a code owner August 26, 2024 14:11

ldionne mentioned this pull request Aug 26, 2024

[libc++] Fix bug in atomic_ref's calculation of lock_free-ness #99570

Merged

ldionne added this to the LLVM 19.X Release milestone Aug 26, 2024

llvmbot added the libc++ libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi. label Aug 26, 2024

dalg24 approved these changes Aug 26, 2024

View reviewed changes

ldionne mentioned this pull request Aug 26, 2024

[libc++][test] Add missing <concepts> to is_always_lock_free test #105966

Merged

ldionne force-pushed the review/is-always-lock-free-test-name branch from 03a3f8e to 6ff7ed8 Compare August 26, 2024 15:55

philnik777 approved these changes Sep 11, 2024

View reviewed changes

ldionne force-pushed the review/is-always-lock-free-test-name branch from 6ff7ed8 to eddceb7 Compare September 17, 2024 14:31

ldionne mentioned this pull request Sep 26, 2024

[release/19.x][libc++] Disable the clang-tidy checks to get CI back (#109989) #110162

Merged

ldionne force-pushed the review/is-always-lock-free-test-name branch 3 times, most recently from 17e0d67 to 8225a05 Compare September 30, 2024 18:29

tru force-pushed the review/is-always-lock-free-test-name branch from 8225a05 to 037efef Compare October 1, 2024 07:04

[libc++] Fix name of is_always_lock_free test which was never being run

74dd036

ldionne force-pushed the review/is-always-lock-free-test-name branch from 037efef to 74dd036 Compare October 1, 2024 13:33

FIXME for Picolibc

f68ba48

ldionne commented Oct 1, 2024

View reviewed changes

ldionne merged commit b456619 into llvm:main Oct 2, 2024
63 checks passed

ldionne deleted the review/is-always-lock-free-test-name branch October 2, 2024 12:54

llvmbot pushed a commit to llvmbot/llvm-project that referenced this pull request Oct 2, 2024

[libc++] Fix name of is_always_lock_free test which was never being r…

4043627

…un (llvm#106077) (cherry picked from commit b456619)

Sterling-Augustine pushed a commit to Sterling-Augustine/llvm-project that referenced this pull request Oct 3, 2024

[libc++] Fix name of is_always_lock_free test which was never being r…

4a6cbb3

…un (llvm#106077)

simpal01 mentioned this pull request Oct 8, 2024

Add 64bit atomic check in the is_always_lock_free_pass test. #111540

Merged

tru pushed a commit to llvmbot/llvm-project that referenced this pull request Oct 11, 2024

[libc++] Fix name of is_always_lock_free test which was never being r…

b0b36c0

…un (llvm#106077) (cherry picked from commit b456619)

cpplearner reviewed Oct 19, 2024

View reviewed changes

StephanTLavavej mentioned this pull request Oct 24, 2024

[libc++][test] Use ADDITIONAL_COMPILE_FLAGS(gcc-style-warnings) for -Wno-psabi #113608

Merged

thewtex mentioned this pull request Feb 10, 2025

llvmorg 19.1.5 libcxxabi pthread lib name #126605

Closed

		// UNSUPPORTED: c++03, c++11, c++14
		// XFAIL: LIBCXX-PICOLIBC-FIXME

	ASSERT_SAME_TYPE(decltype(is_always_lock_free), bool const);
	ASSERT_SAME_TYPE(decltype(is_lock_free), bool);

[libc++] Fix name of is_always_lock_free test which was never being run #106077

[libc++] Fix name of is_always_lock_free test which was never being run #106077

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ldionne commented Aug 26, 2024

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