[cfe-dev] -frounding-math and llvm?

[Eli Friedman]

On Wed, Aug 3, 2011 at 8:45 AM, Jack Howarth <howarth at bromo.med.uc.edu> wrote:
>   What exactly is the situation with support for -frounding-math in llvm-gcc/clang? I ask
> because we are seeing regressions in the ppl 0.11.2 testsuite when compiling with either llvm-gcc
> or clang from Xcode 4.1 as well as clang svn. The ppl developers seem to be seeing warnings to
> the effect...
>
> clang: warning: argument unused during compilation: '-frounding-math'
>
> in their builds.
>
> http://www.cs.unipr.it/pipermail/ppl-devel/2011-August/017559.html
>
> Thanks in advance for any clarifications on the status of -frounding-math in the llvm
> based compilers.

Not supported, and I don't know of anyone who plans on working on it
(or FENV_ACCESS) in the near future.

-Eli