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[Bug bootstrap/16504] [3.5 Regression] ICE in gmon-sol2, stage2
- From: "ebotcazou at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 14 Jul 2004 22:09:35 -0000
- Subject: [Bug bootstrap/16504] [3.5 Regression] ICE in gmon-sol2, stage2
- References: <20040712224154.16504.James.W.Mckelvey@jpl.nasa.gov>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From ebotcazou at gcc dot gnu dot org 2004-07-14 22:09 -------
The stage2 compiler (and more precisely reload.c:combine_reloads) is miscompiled
by the stage1 compiler. The bug stems from a bad interaction between libcalls,
CSE and loop invariant motion that would probably not be easy to fix.
However, I don't want to fix it because it uncovered what appears to be a major
problem in:
2004-07-09 David S. Miller <davem@nuts.davemloft.net>
* config/sparc/sparc.h (processor_costs): Define.
(sparc_costs): Declare.
* config/sparc/sparc.c (cypress_costs, supersparc_costs,
hypersparc_costs, sparclet_costs, ultrasparc_costs,
ultrasparc3_costs): New.
(sparc_override_options): Set sparc_costs as appropriate.
(sparc_rtx_costs): Use sparc_costs instead of messy
conditionals.
The bootstrap failure should go away after this problem is corrected.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16504