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[Bug tree-optimization/65337] [5/6 Regression] bootstrap-lto gnat1 linktime ICE: gcc/ada/exp_aggr.adb:6570:0: internal compiler error: in forward_edge_to_pdom, at tree-ssa-dce.c:1086
- From: "hubicka at ucw dot cz" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 03 Jun 2015 23:51:41 +0000
- Subject: [Bug tree-optimization/65337] [5/6 Regression] bootstrap-lto gnat1 linktime ICE: gcc/ada/exp_aggr.adb:6570:0: internal compiler error: in forward_edge_to_pdom, at tree-ssa-dce.c:1086
- Auto-submitted: auto-generated
- References: <bug-65337-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65337
--- Comment #10 from Jan Hubicka <hubicka at ucw dot cz> ---
> /home/snoonan/Development/ec2-packages/gcc-multilib/src/gcc-build/prev-gcc/gnat1
>
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to process 16017]
> 0x0000000000c354ed in ei_edge (i=...) at
> /home/snoonan/Development/ec2-packages/gcc-multilib/src/gcc-5-20150602/gcc/basic-block.h:460
> 460 return EDGE_I (ei_container (i), i.index);
> (gdb) thread apply all bt full
>
> Thread 2 (process 16017):
> #0 0x0000000000c354ed in ei_edge (i=...) at
> /home/snoonan/Development/ec2-packages/gcc-multilib/src/gcc-5-20150602/gcc/basic-block.h:460
> No locals.
> #1 0x0000000000c376cf in inverted_post_order_compute (post_order=0x2e3d9a0,
> start_points=0x2bb0858 <bb_contains_live_stmts>) at
> /home/snoonan/Development/ec2-packages/gcc-multilib/src/gcc-5-20150602/gcc/cfganal.c:837
I see, it looks like a bug in inverted_post_order_compute that is different ICE
I saw at
ppc64. I will take a look.
Honza