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[Bug rtl-optimization/17860] Wrong generated code for loop with varying bound
- From: "rguenth at tat dot physik dot uni-tuebingen dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 7 Oct 2004 10:18:44 -0000
- Subject: [Bug rtl-optimization/17860] Wrong generated code for loop with varying bound
- References: <20041006125056.17860.tal.agmon@nsc.com>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From rguenth at tat dot physik dot uni-tuebingen dot de 2004-10-07 10:18 -------
Subject: Re: Wrong generated code for loop with
varying bound
> Also not related to loop invariant motion. The source is a bogus
> NOTE_INSN_LOOP_VTOP note: after CSE and GCSE's constant propagation, the loop
> is not anymore a duplicate of the loop-entry test:
Yes, 06.cse is the first wrong dump for with -O, 04.jump looks sane.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17860