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[Bug middle-end/19953] Special-case real + complex arithmetic operation (-ffast-math)
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 15 Feb 2005 06:15:12 -0000
- Subject: [Bug middle-end/19953] Special-case real + complex arithmetic operation (-ffast-math)
- References: <20050214155119.19953.Thomas.Koenig@online.de>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-02-15 06:15 -------
(In reply to comment #3)
> For addition, this is a regression against 3.3.5:
Actually it is not and here is why:
fadds .LC0
.LC0 is actually zero.
And in fact this only can happen with -funsafe-math-optimizations (or maybe with -fno-trapping-
math because a+0.0 can trap.
--
What |Removed |Added
----------------------------------------------------------------------------
Summary|[4.0 regression] Special- |Special-case real + complex
|case real + complex |arithmetic operation (-
|arithmetic operation |ffast-math)
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19953