[Bug optimization/8092] [3.3/3.4 regression] cross-jump triggers too often
rth at redhat dot com
gcc-bugzilla@gcc.gnu.org
Sat Dec 27 09:03:00 GMT 2003
------- Additional Comments From rth at redhat dot com 2003-12-27 05:02 -------
Subject: Re: [3.3/3.4 regression] cross-jump triggers too often
On Fri, Dec 26, 2003 at 09:11:55PM -0000, bernd dot paysan at gmx dot de wrote:
> A central dispatcher is *bad*, because the branch predictor can not make
> up any correlation between jump location and jump target.
No, this causes unacceptable compile-time problems. Did you not
see the bits in bb-reorder that undo this? Are they not working
for some reason?
r~
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8092
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