[llvm-branch-commits] [clang] [flang] [llvm] [Flang] LLVM_ENABLE_RUNTIMES=flang-rt (PR #110217)

[via llvm-branch-commits]

vdonaldson wrote:

> I built this again, compilation of `flang-rt` on windows fails with:
> 
> ```
> C:\bld\flang-split_1738115904732\work\flang-rt\lib\flang_rt\exceptions.cpp(46,31): error: use of undeclared identifier '__FE_DENORM'
>    46 |   static constexpr uint32_t s{__FE_DENORM}; // nonstandard, not a #define
>       |                               ^
> ```

The reference to `__FE_DENORM` in `flang/runtime/exceptions.cpp` is:
```
#if __x86_64__
  static constexpr uint32_t s{__FE_DENORM}; // nonstandard, not a #define
#else
  static constexpr uint32_t s{0};
#endif
```
I'm not aware of any problems with this code in current build environments. If there could be a problem in some environment associated with the code under discussion, the directive could be modified to something like

`#if defined(__x86_64__) && !defined(__WIN32)`

https://github.com/llvm/llvm-project/pull/110217