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[Bug rtl-optimization/15725] ICE in EXECUTE_IF_SET_IN_REG_SET macro when gcc built with BOOT_CFLAGS="-g -O2 -fold-unroll-loops"
- From: "dave at hiauly1 dot hia dot nrc dot ca" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 29 May 2004 22:37:22 -0000
- Subject: [Bug rtl-optimization/15725] ICE in EXECUTE_IF_SET_IN_REG_SET macro when gcc built with BOOT_CFLAGS="-g -O2 -fold-unroll-loops"
- References: <20040529175822.15725.danglin@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca 2004-05-29 22:37 -------
Subject: Re: ICE in EXECUTE_IF_SET_IN_REG_SET mac
> 2004-05-17 Eric Botcazou <ebotcazou@libertysurf.fr>
>
> PR optimization/11841
> * loop.h (REGNO_LAST_NOTE_LUID): New macro.
> * unroll.c (unroll_loop): Take into account notes when deciding
> whether a pseudo is local to the loop.
Have you tried the testcase in 11841 with -fold-unroll-loops and 3.4?
I'm not totally sure but I think this uses essentially the unrolling code
present in 3.3. I think this is also why Richard didn't have problems
with 3.4.
Dave
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15725