[all-commits] [llvm/llvm-project] f254ae: [libc] Add FENV_ACCESS pragma with CMake compiler ...

[Marcos Ramirez Joos via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f254ae6f7f12042d3822c64d4467fe3d385f992c
      https://github.com/llvm/llvm-project/commit/f254ae6f7f12042d3822c64d4467fe3d385f992c
  Author: Marcos Ramirez Joos <mramirezjoos.oss at proton.me>
  Date:   2026-06-01 (Mon, 01 Jun 2026)

  Changed paths:
    M libc/cmake/modules/CheckCompilerFeatures.cmake
    M libc/cmake/modules/LLVMLibCCompileOptionRules.cmake
    M libc/cmake/modules/LLVMLibCTestRules.cmake
    A libc/cmake/modules/compiler_features/check_stdc_fenv_access.cpp
    M libc/src/__support/FPUtil/FEnvImpl.h

  Log Message:
  -----------
  [libc] Add FENV_ACCESS pragma with CMake compiler feature detection (#200268)

Related to https://github.com/llvm/llvm-project/pull/199009

Added compiler feature detection for _STDC FENV_ACCESS_ pragma. It is
used to conditionally add function-scoped `#pragma STDC FENV_ACCESS ON`
to `libc/src/__support/FPUtil/FEnvAccess.h`, whenever functions from the
`<fenv.h>` header are called and the target supports the pragma.



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