[libc-commits] [libc] [llvm] [libc][math] Refactor iscanonical-issignaling-nan family to header-only (PR #195581)
LLVM Continuous Integration via libc-commits
libc-commits at lists.llvm.org
Sun May 3 23:35:32 PDT 2026
llvm-ci wrote:
LLVM Buildbot has detected a new failure on builder `libc-arm32-qemu-debian-dbg` running on `libc-arm32-qemu-debian` while building `libc,utils` at step 4 "annotate".
Full details are available at: https://lab.llvm.org/buildbot/#/builders/215/builds/21571
<details>
<summary>Here is the relevant piece of the build log for the reference</summary>
```
Step 4 (annotate) failure: 'python ../llvm-zorg/zorg/buildbot/builders/annotated/libc-linux.py ...' (failure)
...
[==========] Running 2 tests from 1 test suite.
[ RUN ] LlvmLibcwctype.ValidPropertiesReturnNonZero
[ OK ] LlvmLibcwctype.ValidPropertiesReturnNonZero (1 ms)
[ RUN ] LlvmLibcwctype.InvalidPropertiesReturnZero
[ OK ] LlvmLibcwctype.InvalidPropertiesReturnZero (442 us)
Ran 2 tests. PASS: 2 FAIL: 0
[2450/2503] Linking CXX executable libc/test/src/wctype/libc.test.src.wctype.iswctype_test.__unit__.__build__
[2451/2503] Building CXX object libc/test/src/inttypes/CMakeFiles/libc.test.src.inttypes.imaxdiv_test.__unit__.__build__.dir/imaxdiv_test.cpp.o
[2452/2503] Building CXX object libc/test/src/inttypes/CMakeFiles/libc.test.src.inttypes.imaxabs_test.__unit__.__build__.dir/imaxabs_test.cpp.o
[2453/2503] Building CXX object libc/test/shared/CMakeFiles/libc.test.shared.shared_math_constexpr_test.__unit__.__build__.dir/shared_math_constexpr_test.cpp.o
FAILED: libc/test/shared/CMakeFiles/libc.test.shared.shared_math_constexpr_test.__unit__.__build__.dir/shared_math_constexpr_test.cpp.o
/usr/bin/clang++ --target=arm-linux-gnueabihf --sysroot=/opt/sysroot-deb-armhf-stable -DLIBC_NAMESPACE=__llvm_libc_21_0_0_git -D_DEBUG -I/home/llvm-libc-buildbot/buildbot-worker/libc-arm32-qemu-debian/libc-arm32-qemu-debian-dbg/llvm-project/libc -I/home/llvm-libc-buildbot/buildbot-worker/libc-arm32-qemu-debian/libc-arm32-qemu-debian-dbg/build/libc -isystem /home/llvm-libc-buildbot/buildbot-worker/libc-arm32-qemu-debian/libc-arm32-qemu-debian-dbg/build/libc/include -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wstring-conversion -Wno-pass-failed -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -g --target=arm-linux-gnueabihf -static -D__LIBC_MISC_MATH_BASIC_OPS_OPT -DLIBC_QSORT_IMPL=LIBC_QSORT_QUICK_SORT -DLIBC_COPT_STRING_LENGTH_IMPL=element -DLIBC_COPT_FIND_FIRST_CHARACTER_IMPL=element -DLIBC_ADD_NULL_CHECKS -DLIBC_ERRNO_MODE=LIBC_ERRNO_MODE_DEFAULT -DLIBC_THREAD_MODE=LIBC_THREAD_MODE_PLATFORM -DLIBC_COPT_TIMEOUT_ENSURE_MONOTONICITY -DLIBC_CONF_WCTYPE_MODE=LIBC_WCTYPE_MODE_ASCII -DLIBC_COPT_RAW_MUTEX_DEFAULT_SPIN_COUNT=100 -fpie -Wall -Wextra -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wno-c99-extensions -Wno-gnu-imaginary-constant -Wno-pedantic -Wstrict-prototypes -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wthread-safety -DLIBC_TEST=UNIT -Xclang -fconstexpr-steps=1000000 -std=gnu++17 -MD -MT libc/test/shared/CMakeFiles/libc.test.shared.shared_math_constexpr_test.__unit__.__build__.dir/shared_math_constexpr_test.cpp.o -MF libc/test/shared/CMakeFiles/libc.test.shared.shared_math_constexpr_test.__unit__.__build__.dir/shared_math_constexpr_test.cpp.o.d -o libc/test/shared/CMakeFiles/libc.test.shared.shared_math_constexpr_test.__unit__.__build__.dir/shared_math_constexpr_test.cpp.o -c /home/llvm-libc-buildbot/buildbot-worker/libc-arm32-qemu-debian/libc-arm32-qemu-debian-dbg/llvm-project/libc/test/shared/shared_math_constexpr_test.cpp
error: unknown argument: '-fconstexpr-steps=1000000'
[2454/2503] Building CXX object libc/test/src/sys/socket/linux/CMakeFiles/libc.test.src.sys.socket.linux.sockaddr_storage_test.__build__.dir/sockaddr_storage_test.cpp.o
[2455/2503] Running unit test libc.test.src.wctype.iswctype_test.__unit__
[==========] Running 13 tests from 1 test suite.
[ RUN ] LlvmLibciswctype.Alnum
[ OK ] LlvmLibciswctype.Alnum (1 ms)
[ RUN ] LlvmLibciswctype.Alpha
[ OK ] LlvmLibciswctype.Alpha (414 us)
[ RUN ] LlvmLibciswctype.Blank
[ OK ] LlvmLibciswctype.Blank (375 us)
[ RUN ] LlvmLibciswctype.Cntrl
[ OK ] LlvmLibciswctype.Cntrl (512 us)
[ RUN ] LlvmLibciswctype.Digit
[ OK ] LlvmLibciswctype.Digit (389 us)
[ RUN ] LlvmLibciswctype.Graph
[ OK ] LlvmLibciswctype.Graph (470 us)
[ RUN ] LlvmLibciswctype.Lower
[ OK ] LlvmLibciswctype.Lower (354 us)
[ RUN ] LlvmLibciswctype.Print
[ OK ] LlvmLibciswctype.Print (407 us)
[ RUN ] LlvmLibciswctype.Punct
[ OK ] LlvmLibciswctype.Punct (440 us)
[ RUN ] LlvmLibciswctype.Space
[ OK ] LlvmLibciswctype.Space (560 us)
[ RUN ] LlvmLibciswctype.Upper
[ OK ] LlvmLibciswctype.Upper (383 us)
[ RUN ] LlvmLibciswctype.XDigit
[ OK ] LlvmLibciswctype.XDigit (552 us)
[ RUN ] LlvmLibciswctype.InvalidDescriptor
[ OK ] LlvmLibciswctype.InvalidDescriptor (167 us)
Ran 13 tests. PASS: 13 FAIL: 0
[2456/2503] Building CXX object libc/test/src/poll/CMakeFiles/libc.test.src.poll.poll_test.__build__.dir/poll_test.cpp.o
[2457/2503] Building CXX object libc/test/src/sys/personality/linux/CMakeFiles/libc.test.src.sys.personality.linux.personality_test.__build__.dir/personality_test.cpp.o
[2458/2503] Building CXX object libc/test/src/sys/mman/linux/CMakeFiles/libc.test.src.sys.mman.linux.mmap_test.__build__.dir/mmap_test.cpp.o
[2459/2503] Building CXX object libc/test/src/inttypes/CMakeFiles/libc.test.src.inttypes.strtoimax_test.__unit__.__build__.dir/strtoimax_test.cpp.o
[2460/2503] Linking CXX executable libc/test/src/inttypes/libc.test.src.inttypes.imaxdiv_test.__unit__.__build__
[2461/2503] Building CXX object libc/test/src/inttypes/CMakeFiles/libc.test.src.inttypes.strtoumax_test.__unit__.__build__.dir/strtoumax_test.cpp.o
Step 7 (libc-unit-tests) failure: libc-unit-tests (failure)
...
[==========] Running 2 tests from 1 test suite.
[ RUN ] LlvmLibcwctype.ValidPropertiesReturnNonZero
[ OK ] LlvmLibcwctype.ValidPropertiesReturnNonZero (1 ms)
[ RUN ] LlvmLibcwctype.InvalidPropertiesReturnZero
[ OK ] LlvmLibcwctype.InvalidPropertiesReturnZero (442 us)
Ran 2 tests. PASS: 2 FAIL: 0
[2450/2503] Linking CXX executable libc/test/src/wctype/libc.test.src.wctype.iswctype_test.__unit__.__build__
[2451/2503] Building CXX object libc/test/src/inttypes/CMakeFiles/libc.test.src.inttypes.imaxdiv_test.__unit__.__build__.dir/imaxdiv_test.cpp.o
[2452/2503] Building CXX object libc/test/src/inttypes/CMakeFiles/libc.test.src.inttypes.imaxabs_test.__unit__.__build__.dir/imaxabs_test.cpp.o
[2453/2503] Building CXX object libc/test/shared/CMakeFiles/libc.test.shared.shared_math_constexpr_test.__unit__.__build__.dir/shared_math_constexpr_test.cpp.o
FAILED: libc/test/shared/CMakeFiles/libc.test.shared.shared_math_constexpr_test.__unit__.__build__.dir/shared_math_constexpr_test.cpp.o
/usr/bin/clang++ --target=arm-linux-gnueabihf --sysroot=/opt/sysroot-deb-armhf-stable -DLIBC_NAMESPACE=__llvm_libc_21_0_0_git -D_DEBUG -I/home/llvm-libc-buildbot/buildbot-worker/libc-arm32-qemu-debian/libc-arm32-qemu-debian-dbg/llvm-project/libc -I/home/llvm-libc-buildbot/buildbot-worker/libc-arm32-qemu-debian/libc-arm32-qemu-debian-dbg/build/libc -isystem /home/llvm-libc-buildbot/buildbot-worker/libc-arm32-qemu-debian/libc-arm32-qemu-debian-dbg/build/libc/include -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wstring-conversion -Wno-pass-failed -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -g --target=arm-linux-gnueabihf -static -D__LIBC_MISC_MATH_BASIC_OPS_OPT -DLIBC_QSORT_IMPL=LIBC_QSORT_QUICK_SORT -DLIBC_COPT_STRING_LENGTH_IMPL=element -DLIBC_COPT_FIND_FIRST_CHARACTER_IMPL=element -DLIBC_ADD_NULL_CHECKS -DLIBC_ERRNO_MODE=LIBC_ERRNO_MODE_DEFAULT -DLIBC_THREAD_MODE=LIBC_THREAD_MODE_PLATFORM -DLIBC_COPT_TIMEOUT_ENSURE_MONOTONICITY -DLIBC_CONF_WCTYPE_MODE=LIBC_WCTYPE_MODE_ASCII -DLIBC_COPT_RAW_MUTEX_DEFAULT_SPIN_COUNT=100 -fpie -Wall -Wextra -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wno-c99-extensions -Wno-gnu-imaginary-constant -Wno-pedantic -Wstrict-prototypes -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wthread-safety -DLIBC_TEST=UNIT -Xclang -fconstexpr-steps=1000000 -std=gnu++17 -MD -MT libc/test/shared/CMakeFiles/libc.test.shared.shared_math_constexpr_test.__unit__.__build__.dir/shared_math_constexpr_test.cpp.o -MF libc/test/shared/CMakeFiles/libc.test.shared.shared_math_constexpr_test.__unit__.__build__.dir/shared_math_constexpr_test.cpp.o.d -o libc/test/shared/CMakeFiles/libc.test.shared.shared_math_constexpr_test.__unit__.__build__.dir/shared_math_constexpr_test.cpp.o -c /home/llvm-libc-buildbot/buildbot-worker/libc-arm32-qemu-debian/libc-arm32-qemu-debian-dbg/llvm-project/libc/test/shared/shared_math_constexpr_test.cpp
error: unknown argument: '-fconstexpr-steps=1000000'
[2454/2503] Building CXX object libc/test/src/sys/socket/linux/CMakeFiles/libc.test.src.sys.socket.linux.sockaddr_storage_test.__build__.dir/sockaddr_storage_test.cpp.o
[2455/2503] Running unit test libc.test.src.wctype.iswctype_test.__unit__
[==========] Running 13 tests from 1 test suite.
[ RUN ] LlvmLibciswctype.Alnum
[ OK ] LlvmLibciswctype.Alnum (1 ms)
[ RUN ] LlvmLibciswctype.Alpha
[ OK ] LlvmLibciswctype.Alpha (414 us)
[ RUN ] LlvmLibciswctype.Blank
[ OK ] LlvmLibciswctype.Blank (375 us)
[ RUN ] LlvmLibciswctype.Cntrl
[ OK ] LlvmLibciswctype.Cntrl (512 us)
[ RUN ] LlvmLibciswctype.Digit
[ OK ] LlvmLibciswctype.Digit (389 us)
[ RUN ] LlvmLibciswctype.Graph
[ OK ] LlvmLibciswctype.Graph (470 us)
[ RUN ] LlvmLibciswctype.Lower
[ OK ] LlvmLibciswctype.Lower (354 us)
[ RUN ] LlvmLibciswctype.Print
[ OK ] LlvmLibciswctype.Print (407 us)
[ RUN ] LlvmLibciswctype.Punct
[ OK ] LlvmLibciswctype.Punct (440 us)
[ RUN ] LlvmLibciswctype.Space
[ OK ] LlvmLibciswctype.Space (560 us)
[ RUN ] LlvmLibciswctype.Upper
[ OK ] LlvmLibciswctype.Upper (383 us)
[ RUN ] LlvmLibciswctype.XDigit
[ OK ] LlvmLibciswctype.XDigit (552 us)
[ RUN ] LlvmLibciswctype.InvalidDescriptor
[ OK ] LlvmLibciswctype.InvalidDescriptor (167 us)
Ran 13 tests. PASS: 13 FAIL: 0
[2456/2503] Building CXX object libc/test/src/poll/CMakeFiles/libc.test.src.poll.poll_test.__build__.dir/poll_test.cpp.o
[2457/2503] Building CXX object libc/test/src/sys/personality/linux/CMakeFiles/libc.test.src.sys.personality.linux.personality_test.__build__.dir/personality_test.cpp.o
[2458/2503] Building CXX object libc/test/src/sys/mman/linux/CMakeFiles/libc.test.src.sys.mman.linux.mmap_test.__build__.dir/mmap_test.cpp.o
[2459/2503] Building CXX object libc/test/src/inttypes/CMakeFiles/libc.test.src.inttypes.strtoimax_test.__unit__.__build__.dir/strtoimax_test.cpp.o
[2460/2503] Linking CXX executable libc/test/src/inttypes/libc.test.src.inttypes.imaxdiv_test.__unit__.__build__
[2461/2503] Building CXX object libc/test/src/inttypes/CMakeFiles/libc.test.src.inttypes.strtoumax_test.__unit__.__build__.dir/strtoumax_test.cpp.o
```
</details>
https://github.com/llvm/llvm-project/pull/195581
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