This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [tree-ssa] COND_EXPR lowering.
- From: Andrew MacLeod <amacleod at redhat dot com>
- To: Zdenek Dvorak <rakdver at atrey dot karlin dot mff dot cuni dot cz>
- Cc: gcc-patches <gcc-patches at gcc dot gnu dot org>, Jeff Law <law at redhat dot com>
- Date: 24 Oct 2003 11:33:51 -0400
- Subject: Re: [tree-ssa] COND_EXPR lowering.
- References: <1067001734.14404.2805.camel@p4>
On Fri, 2003-10-24 at 09:22, Andrew MacLeod wrote:
>
> Oops, my x86 bootstrap with this patch just died in PRE:
>
> insn-recog.c:17561: internal compiler error: virtual array
> basic_block_info[5349]: element 3537031808 out of bounds in
> insert_occ_in_preorder_dt_order_1, at tree-ssa-pre.c:903
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://gcc.gnu.org/bugs.html> for instructions.
> make[1]: *** [insn-recog.o] Error 1
> make[1]: Leaving directory `/build/tree-ssa/2003-10-21/gcc'
> make: *** [stage2_build] Error 2
>
> My source tree is a couple of days old, I'll try it with a fresh tree
> too.
>
There is a change to the dominator version of thread_edge that is
incompatible. I hacked around a bit, (leaving 2 thread_edge routines,
and modifying the one in dom.c to handle COND_EXPR's), but I get a
bootstrap error:
/src/tree-ssa/2003-10-24/gcc/gcc/combine.c: In function `simplify_shift_const':
/src/tree-ssa/2003-10-24/gcc/gcc/combine.c:9137: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
make[2]: *** [combine.o] Error 1
make[2]: Leaving directory `/build/tree-ssa/2003-10-24/gcc'
make[1]: *** [stage2_build] Error 2
make[1]: Leaving directory `/build/tree-ssa/2003-10-24/gcc'
make: *** [bootstrap] Error 2
You might want to take a look at the threading bits and see if you can
get it to bootstrap. It bootstraps without the patch.
Andrew