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Re: [gfortran] Fix NEAREST constant folder

From: Richard Henderson <rth at redhat dot com>
To: Paul Brook <paul at codesourcery dot com>
Cc: fortran at gcc dot gnu dot org, Steve Kargl <sgk at troutmask dot apl dot washington dot edu>, Tobias Schl?ter <tobias dot schlueter at physik dot uni-muenchen dot de>, patch <gcc-patches at gcc dot gnu dot org>
Date: Tue, 12 Apr 2005 18:02:18 -0700
Subject: Re: [gfortran] Fix NEAREST constant folder
References: <4259364C.3040109@physik.uni-muenchen.de> <20050412213919.GE32617@redhat.com> <20050412220050.GA73395@troutmask.apl.washington.edu> <200504122309.13264.paul@codesourcery.com>

On Tue, Apr 12, 2005 at 11:09:12PM +0100, Paul Brook wrote:
> Wouldn't that cause double rounding?
> MPFR would round to the full precision, then we'd round again to simulate the 
> reduced precision from the denormal.

No, because we wouldn't round, we'd truncate, just like the real
hardware would.


r~

References:
- [gfortran] Fix NEAREST constant folder
  - From: Tobias Schlüter
- Re: [gfortran] Fix NEAREST constant folder
  - From: Richard Henderson
- Re: [gfortran] Fix NEAREST constant folder
  - From: Steve Kargl
- Re: [gfortran] Fix NEAREST constant folder
  - From: Paul Brook

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