[PATCH] Fix -ffast-math flags handling inconsistencies

[Ulrich Weigand]

Joseph Myers wrote:
> On Mon, 10 Feb 2020, Ulrich Weigand wrote:
> > I'm not sure how this can be implemented in the current option handling
> > framework.  The -ffast-math handling case would have to check whether
> > or not there is any explicit use of -f(no-)finite-math-only; is there
> > any infrastructure to readily perform such a test?
> 
> Pass opts_set as well as opts to set_fast_math_flags, and use it for 
> checking whether an option was explicitly specified (whether enabled or 
> disabled) on the command line.

Ah, I see.  I'll update the patch accordingly.  Thanks!

I guess I still need to check for the opts->frontend_set_... flags
as well -- those are not reflected in opts_set, right?

Bye,
Ulrich

-- 
  Dr. Ulrich Weigand
  GNU/Linux compilers and toolchain
  Ulrich.Weigand@de.ibm.com