[all-commits] [llvm/llvm-project] 59eb0d: [libc][math] Add isnanf128 (#199206)

[Vedant Neve via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 59eb0d2c6126a5b84cfb7f7c351c2bcfefa88bb0
      https://github.com/llvm/llvm-project/commit/59eb0d2c6126a5b84cfb7f7c351c2bcfefa88bb0
  Author: Vedant Neve <vedantneve13 at gmail.com>
  Date:   2026-06-10 (Wed, 10 Jun 2026)

  Changed paths:
    M libc/config/baremetal/aarch64/entrypoints.txt
    M libc/config/baremetal/arm/entrypoints.txt
    M libc/config/baremetal/riscv/entrypoints.txt
    M libc/config/darwin/aarch64/entrypoints.txt
    M libc/config/linux/aarch64/entrypoints.txt
    M libc/config/linux/riscv/entrypoints.txt
    M libc/config/linux/x86_64/entrypoints.txt
    M libc/include/math.yaml
    M libc/shared/math.h
    A libc/shared/math/isnanf128.h
    M libc/src/__support/math/CMakeLists.txt
    A libc/src/__support/math/isnanf128.h
    M libc/src/math/CMakeLists.txt
    M libc/src/math/generic/CMakeLists.txt
    A libc/src/math/generic/isnanf128.cpp
    A libc/src/math/isnanf128.h
    M libc/test/shared/CMakeLists.txt
    M libc/test/shared/shared_math_constexpr_test.cpp
    M libc/test/shared/shared_math_test.cpp
    M libc/test/src/math/smoke/CMakeLists.txt
    A libc/test/src/math/smoke/isnanf128_test.cpp
    M utils/bazel/llvm-project-overlay/libc/BUILD.bazel
    M utils/bazel/llvm-project-overlay/libc/test/src/math/smoke/BUILD.bazel

  Log Message:
  -----------
  [libc][math] Add isnanf128 (#199206)

## Summary

- Add a fputil-based isnanf128 implementation and wire it into libc math
entrypoints, public math header generation, and shared math wrappers.

- Add smoke test coverage for float128 NaN classification and shared
math runtime/constexpr coverage.

Part of #195400

---------

Signed-off-by: Vedant Neve <vedantneve13 at gmail.com>



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