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Re: FP negation optimization
- From: Richard Henderson <rth at redhat dot com>
- To: Chris Lattner <sabre at nondot dot org>
- Cc: gcc at gcc dot gnu dot org
- Date: Sun, 1 Feb 2004 11:54:15 -0800
- Subject: Re: FP negation optimization
- References: <Pine.LNX.4.44.0402010249001.12867-100000@nondot.org>
On Sun, Feb 01, 2004 at 02:50:31AM -0600, Chris Lattner wrote:
> Is '-0.0 - X' always guaranteed to be the same as '-X' with IEEE math?
No. X == +0.0 differs.
r~