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Re: [lno] fix division by zero
- From: Richard Henderson <rth at redhat dot com>
- To: Dorit Naishlos <DORIT at il dot ibm dot com>
- Cc: Daniel Berlin <dberlin at dberlin dot org>, Toon Moene <toon at moene dot indiv dot nluug dot nl>, Pop Sébastian <pop at gauvain dot u-strasbg dot fr>, gcc-patches at gcc dot gnu dot org
- Date: Sun, 4 Jan 2004 16:52:44 -0800
- Subject: Re: [lno] fix division by zero
- References: <OFF30C0A56.97487BB8-ONC2256E11.002A0008-C2256E11.002E002D@il.ibm.com>
On Sun, Jan 04, 2004 at 10:22:27AM +0200, Dorit Naishlos wrote:
> At the end of tree-vectorizer.h you can set
> #define DBG_VECT(A)
> to
> #define DBG_VECT(A) A
> to get information on why vectorization did not occur.
> Setting
> #define DBG_VECT2(A) A
> will spit even more details.
>
> It should be changed to be cotrolled by a flag.
It should *always* be emitted to the debug file
and *never* to stderr.
r~