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[Bug tree-optimization/15524] [4.0 Regression] jump threading on trees is slow with switch statements with large # of cases
- From: "ebotcazou at libertysurf dot fr" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 21 Nov 2004 07:13:00 -0000
- Subject: [Bug tree-optimization/15524] [4.0 Regression] jump threading on trees is slow with switch statements with large # of cases
- References: <20040518194300.15524.pinskia@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From ebotcazou at libertysurf dot fr 2004-11-21 07:12 -------
Subject: Re: [4.0 Regression] jump threading on trees is slow with switch statements with large # of cases
> I haven't seen the comparison failure on i686 -- if I had I never
> would have checked in the patch. PPC is the only other kind of box
> I have here locally.
Right, the problem seems to be very sensitive to the environment. H.J. saw it
on AMD64 while I didn't.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15524