[Bug rtl-optimization/15725] ICE in EXECUTE_IF_SET_IN_REG_SET macro when gcc built with BOOT_CFLAGS="-g -O2 -fold-unroll-loops"

[dave at hiauly1 dot hia dot nrc dot ca]

------- 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


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15725