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[Bug rtl-optimization/21141] [3.4 Regression] excessive stack usage
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 21 Apr 2005 06:33:19 -0000
- Subject: [Bug rtl-optimization/21141] [3.4 Regression] excessive stack usage
- References: <20050421060504.21141.vda@port.imtp.ilyichevsk.odessa.ua>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-04-21 06:33 -------
Hmm, with -fomit-frame-pointer, the stack usage goes back to an okay value:
subl $604, %esp
I think this is just another case where spills are no not reused, see PR 17838. so -fomit-frame-pointer
causes the spilling to go down. 4.0.0 reduces the stack usage by making the arrays really each 8
variables.
--
What |Removed |Added
----------------------------------------------------------------------------
OtherBugsDependingO| |17838
nThis| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21141