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Re: Do less generous pointer globbing in alias.c
- From: Andreas Schwab <schwab at linux-m68k dot org>
- To: Jan Hubicka <hubicka at ucw dot cz>
- Cc: Richard Biener <rguenther at suse dot de>, gcc-patches at gcc dot gnu dot org
- Date: Sun, 31 May 2015 09:13:21 +0200
- Subject: Re: Do less generous pointer globbing in alias.c
- Authentication-results: sourceware.org; auth=none
- References: <alpine dot LSU dot 2 dot 11 dot 1505271046320 dot 30088 at zhemvz dot fhfr dot qr> <20150527144221 dot GB51385 at kam dot mff dot cuni dot cz> <20150527145821 dot GC51385 at kam dot mff dot cuni dot cz> <20150527150413 dot GD51385 at kam dot mff dot cuni dot cz> <5B58CC66-6A43-401E-9A83-A26D076D2A45 at suse dot de> <20150528132943 dot GA8474 at kam dot mff dot cuni dot cz> <alpine dot LSU dot 2 dot 11 dot 1505281544250 dot 30088 at zhemvz dot fhfr dot qr> <20150528140924 dot GA86368 at kam dot mff dot cuni dot cz> <20150528201251 dot GA407 at kam dot mff dot cuni dot cz> <87siadai4f dot fsf at igel dot home> <20150530215235 dot GA74695 at kam dot mff dot cuni dot cz>
Jan Hubicka <hubicka@ucw.cz> writes:
> I am not sure I have access to working ia64 box. Can you possibly help me
> to debug this? Is it devirtualization related?
Here's a backtrace:
0x4000000000422311 in bitmap_obstack_alloc_stat (
bit_obstack=0x400000000194cf20 <ipa_icf::sem_item_optimizer::parse_funcs_and_vars()+1312>) at ../../gcc/bitmap.c:288
288 bit_obstack->heads = (struct bitmap_head *) map->first;
(gdb) bt full
#0 0x4000000000422311 in bitmap_obstack_alloc_stat (
bit_obstack=0x400000000194cf20 <ipa_icf::sem_item_optimizer::parse_funcs_and_vars()+1312>) at ../../gcc/bitmap.c:288
map = 0x8401880020420020
#1 0x400000000192bf10 in ipa_icf::sem_item::setup (this=0x2000000000ab0350,
stack=0x400000000194cf20 <ipa_icf::sem_item_optimizer::parse_funcs_and_vars()+1312>) at ../../gcc/ipa-icf.c:224
No locals.
#2 0x400000000194c730 in ipa_icf::sem_variable::sem_variable (
this=0x2000000000ab0350, node=0x6000000000309430, _hash=3188864,
stack=0x400000000194cf20 <ipa_icf::sem_item_optimizer::parse_funcs_and_vars()+1312>) at ../../gcc/ipa-icf.c:1847
No locals.
#3 0x400000000194c690 in sem_function (stack=0x600000000008c4d8 <dump_flags>,
hash=0, node=0x7fffffff, this=0x2000000000966920)
at ../../gcc/ipa-icf.c:286
No locals.
#4 ipa_icf::sem_function::parse (node=0x7fffffff,
stack=0x600000000008c4d8 <dump_flags>) at ../../gcc/ipa-icf.c:1701
fndecl = <optimized out>
func = <optimized out>
__FUNCTION__ = "parse"
#5 0x4000000000d24110 in execute_ipa_summary_passes (
ipa_pass=0x2000000000ab0350) at ../../gcc/passes.c:2143
pass = 0x2000000000ab0350
#6 0x400000000194eb00 in ipa_icf::ipa_icf_generate_summary ()
at ../../gcc/ipa-icf.c:3502
No locals.
#7 0x60000000001230b0 in default_target_ira_int ()
No symbol table info available.
#8 0x400000000192bf10 in ipa_icf::sem_item::setup (this=0xffffffffffffffc0,
stack=0x0) at ../../gcc/ipa-icf.c:224
No locals.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."