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Re: [PATCH] Fix segfault with -fdump-tree-all-all
The patch below passed bootstrap and testsuite with no new regressions
on linux-i386. I did not bootstrap ADA though (so that the test
finished overnight) but I hope that does not matter with such a small
change in debug dumping code.
OK, to commit?
Thanks,
Martin
On Wed, Mar 19, 2008 at 07:18:11PM +0100, Martin Jambor wrote:
> Changelog:
>
> 2008-03-19 Martin Jambor <mjambor@suse.cz>
>
> * tree-data-ref.c (dump_data_dependence_relation): Avoid data
> reference dumps if ddr is NULL or dependence is unknown.
>
> Patch:
>
> Index: gcc/tree-data-ref.c
> ===================================================================
> --- gcc/tree-data-ref.c (revision 133342)
> +++ gcc/tree-data-ref.c (working copy)
> @@ -358,17 +358,20 @@ dump_data_dependence_relation (FILE *out
> {
> struct data_reference *dra, *drb;
>
> - dra = DDR_A (ddr);
> - drb = DDR_B (ddr);
> fprintf (outf, "(Data Dep: \n");
>
> + if (!ddr || DDR_ARE_DEPENDENT (ddr) == chrec_dont_know)
> + {
> + fprintf (outf, " (don't know)\n)\n");
> + return;
> + }
> +
> + dra = DDR_A (ddr);
> + drb = DDR_B (ddr);
> dump_data_reference (outf, dra);
> dump_data_reference (outf, drb);
>
> - if (DDR_ARE_DEPENDENT (ddr) == chrec_dont_know)
> - fprintf (outf, " (don't know)\n");
> -
> - else if (DDR_ARE_DEPENDENT (ddr) == chrec_known)
> + if (DDR_ARE_DEPENDENT (ddr) == chrec_known)
> fprintf (outf, " (no dependence)\n");
>
> else if (DDR_ARE_DEPENDENT (ddr) == NULL_TREE)