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[Bug bootstrap/54795] [4.8 Regression] Random profiledbootstrap failure with LTO
- From: "hjl.tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 17 Nov 2012 16:47:54 +0000
- Subject: [Bug bootstrap/54795] [4.8 Regression] Random profiledbootstrap failure with LTO
- Auto-submitted: auto-generated
- References: <bug-54795-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54795
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hubicka at gcc dot gnu.org
--- Comment #9 from H.J. Lu <hjl.tools at gmail dot com> 2012-11-17 16:47:54 UTC ---
==17715== Invalid read of size 8
==17715== at 0x6B2522: output_symtab() (lto-cgraph.c:589)
==17715== by 0x6B87B5: lto_output() (lto-streamer-out.c:1000)
==17715== by 0x6E2307: ipa_write_optimization_summaries_1(opt_pass*,
lto_out_decl_state*) (passes.c:2542)
==17715== by 0x6E3257:
ipa_write_optimization_summaries(lto_symtab_encoder_d*) (passes.c:2589)
==17715== by 0x4EA5AA: lto_main() (lto.c:2693)
==17715== by 0x76FC45: compile_file() (toplev.c:545)
==17715== by 0x7717E7: toplev_main(int, char**) (toplev.c:1881)
==17715== by 0x38F3A21674: (below main) (in /usr/lib64/libc-2.15.so)
==17715== Address 0xb5caccc is not stack'd, malloc'd or (recently) free'd
588 bp = bitpack_create (ob->main_stream);
589 bp_pack_value (&bp, ref->use, 2);
590 streamer_write_bitpack (&bp);
591 nref = lto_symtab_encoder_lookup (encoder, ref->referred);
592 gcc_assert (nref != LCC_NOT_FOUND);
593 streamer_write_hwi_stream (ob->main_stream, nref);
(gdb) p ref
$1 = (ipa_ref *) 0xb5cacb0
(gdb) p ref->use
$2 = IPA_REF_LOAD
(gdb) p &ref->use
$3 = (ipa_ref_use *) 0xb5caccc
(gdb)