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[Bug fortran/5900] [g77 & gfortran] Lapack regressions since g77 2.95.2
- From: "Thomas dot Koenig at online dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 11 Feb 2005 12:09:04 -0000
- Subject: [Bug fortran/5900] [g77 & gfortran] Lapack regressions since g77 2.95.2
- References: <20020309112600.5900.schmid@snake.iap.physik.tu-darmstadt.de>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From Thomas dot Koenig at online dot de 2005-02-11 12:09 -------
(In reply to comment #39)
> One suspect is this code snippet from gcc/config/ia64.c :
>
> static bool
> ia64_rtx_costs (rtx x, int code, int outer_code, int *total)
> case DIV:
> case UDIV:
> case MOD:
> case UMOD:
> /* We make divide expensive, so that divide-by-constant will be
> optimized to a multiply. */
> *total = COSTS_N_INSNS (60);
That's not it. I changed that one to a low value, and still got
the same results.
Thomas
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=5900