llvm-project.git/libc/test/src/math/smoke/acoshf_test.cpp, branch users/mingmingl-llvm/samplefdo-profile-format

[libc] Clean up errno header usage in a few math/smoke tests. (#157517)

2025-09-08T18:09:34+00:00

Most of the unit tests don't (or don't need to) read/write libc_errno
code directly - it's cleared by the ErrnoCheckingTest harness, and is
verified by framework-provided scripts such as EXPECT_MATH_ERRNO.

Use the following rule of thumb for header inclusion:
* if you use libc_errno in code literally, include
src/__support/libc_errno.h
* if you only rely on errno constants, include hdr/errno_macros.h

This PR only updates a few tests for acos/asin variants, as a
proof-of-concept. If it goes in, a follow-up PR would update the rest.

[libc][NFC] Add stdint.h proxy header to fix dependency issue with includes. (#150303)

2025-07-24T00:19:52+00:00

https://github.com/llvm/llvm-project/issues/149993

[libc] Move libc_errno.h to libc/src/__support and make LIBC_ERRNO_MODE_SYSTEM to be header-only. (#143187)

2025-06-11T20:25:27+00:00

This is the first step in preparation for:
https://discourse.llvm.org/t/rfc-make-clang-builtin-math-functions-constexpr-with-llvm-libc-to-support-c-23-constexpr-math-functions/86450

[libc][math] Fix signaling NaN handling for math functions. (#133347)

2025-04-08T13:23:38+00:00

Add tests for signaling NaNs, and fix function behavior for handling
signaling NaN input.

Fixes https://github.com/llvm/llvm-project/issues/124812

[libc][math] Add tests and fix some issues with FTZ/DAZ modes. (#113744)

2024-10-26T14:55:20+00:00

[libc] remove errno.h includes (#110934)

2024-10-05T23:31:36+00:00

[libc] Add proxy header math_macros.h. (#87598)

2024-04-05T22:21:16+00:00

Context: https://github.com/llvm/llvm-project/pull/87017

- Add proxy header `libc/hdr/math_macros.h` that will:
  - include `` in overlay mode,
- include `"include/llvm-libc-macros/math-macros.h"` in full build mode.
- Its corresponding CMake target `libc.hdr.math_macros` will only depend
on `libc.include.math` and `libc.include.llvm-libc-macros.math_macros`
in full build mode.
- Replace all `#include "include/llvm-libc-macros/math-macros.h"` with
`#include "hdr/math_macros.h"`.
- Add dependency to `libc.hdr.math_macros` CMake target when using
`add_fp_unittest`.
- Update the remaining dependency.
- Update bazel overlay: add `libc:hdr_math_macros` target, and replacing
all dependency on `libc:llvm_libc_macros_math_macros` with
`libc:hdr_math_macros`.

[libc] Remove direct math.h includes (#85324)

2024-03-18T21:19:33+00:00

Reland of #84991

A downstream overlay mode user ran into issues with the isnan macro not
working in our sources with a specific libc configuration. This patch
replaces the last direct includes of math.h with our internal
math_macros.h, along with the necessary build system changes.

[libc] Move libc_errno inside of LIBC_NAMESPACE (#80774)

2024-02-06T09:36:05+00:00

Having libc_errno outside of the namespace causes versioning issues when
trying to link the tests against LLVM-libc. Most of this patch is just
moving libc_errno inside the namespace in tests. This isn't necessary in
the function implementations since those are already inside the
namespace.

[libc][math][NFC] Remove global scope constants declaration in math tests (#69558)

2023-10-19T14:30:11+00:00

Clean up usage of `DECLARE_SPECIAL_CONSTANTS` in global scope.