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patch that caused regression PR f/9258
- From: Janis Johnson <janis187 at us dot ibm dot com>
- To: gcc at gcc dot gnu dot org, jh at suse dot cz
- Date: Tue, 14 Jan 2003 09:55:03 -0800
- Subject: patch that caused regression PR f/9258
The regression reported in PR f/9258 ([3.2/3.3/3.4 regression] ICE in
compensate_edge, at reg-stack.c:2589) showed up with this patch:
Sat Jun 23 01:23:59 CEST 2001 Jan Hubicka <jh@suse.cz>
* flow.c (mark_set_1, attempt_auto_inc, mark_used_reg,
try_pre_increment_1): compute REG_FREQ using bb->frequency.
* regclass.c (loop_cost): Kill.
(frequency): New global variable.
(record_operand_costs): Replace loop_cost by frequency.
(scan_one_insn): Likewise.
(regclass): Likewise; set frequency according to bb->frequency.
* flow.c (split_edge): Set frequency.
I used the minimized test case from the PR and got the same ICE message.
This information has been added to the PR.
Janis