[cfe-commits] [PATCH] Add -fexcess-precision option.

[Hal Finkel]

On Thu, 21 Jun 2012 15:28:40 -0700
Lang Hames <lhames at gmail.com> wrote:

> Hey,
> 
> 
> > My point is that we *just* changed the name a few days ago. Now is
> > the prime time to change it in light of the present discussion.
> 
> 
> Yep - I'll rename the LLVM flag for consistency with the frontend
> version.

Speaking of names, the gcc manual now says:

(quote)
-ffp-contract=style
    -ffp-contract=off disables floating-point expression contraction.
-ffp-contract=fast enables floating-point expression contraction such
as forming of fused multiply-add operations if the target has native
support for them. -ffp-contract=on enables floating-point expression
contraction if allowed by the language standard. This is currently not
implemented and treated equal to -ffp-contract=off.

    The default is -ffp-contract=fast. 
(end quote)

So it seems that gcc has named the option -ffp-contract -- we should
probably do the same. We can accept gcc's fast/on/off as synonyms for
our preferred keywords (I'm specifically talking about clang here).

 -Hal

> 
> - Lang.



-- 
Hal Finkel
Postdoctoral Appointee
Leadership Computing Facility
Argonne National Laboratory