https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118541
--- Comment #2 from Florian Weimer <fw at gcc dot gnu.org> --- This is about these glibc test suite failures, right? FAIL: math/test-double-acospi FAIL: math/test-float-acospi FAIL: math/test-float32-acospi FAIL: math/test-float32x-acospi FAIL: math/test-float64-acospi I see those with GCC 11.5. The detailed test output looks like this: testing double (without inline functions) Failure: acospi (qNaN): Exception "Invalid operation" set Failure: acospi (-qNaN): Exception "Invalid operation" set Failure: acospi_downward (qNaN): Exception "Invalid operation" set Failure: acospi_downward (-qNaN): Exception "Invalid operation" set Failure: acospi_towardzero (qNaN): Exception "Invalid operation" set Failure: acospi_towardzero (-qNaN): Exception "Invalid operation" set Failure: acospi_upward (qNaN): Exception "Invalid operation" set Failure: acospi_upward (-qNaN): Exception "Invalid operation" set Test suite completed: 4 max error test cases, 444 input tests, - with 1784 tests for exception flags, - with 436 tests for errno executed. 8 errors occurred.