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[Bug sanitizer/63855] [5 Regression] ICE: SIGSEGV in ipa_comdats with -fsanitize=null
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 18 Nov 2014 12:05:28 +0000
- Subject: [Bug sanitizer/63855] [5 Regression] ICE: SIGSEGV in ipa_comdats with -fsanitize=null
- Auto-submitted: auto-generated
- References: <bug-63855-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63855
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hubicka at gcc dot gnu.org
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
The ICE is in the ipa-comdats.c pass, on a decl that has been created by:
#4 0x000000000122e121 in make_node_stat (code=FUNCTION_DECL) at
../../gcc/tree.c:951
#5 0x000000000123c20c in build_decl_stat (loc=7698, code=FUNCTION_DECL,
name=<identifier_node 0x7ffff1a0b688 _GLOBAL__sub_I_b>,
type=<function_type 0x7ffff188a0a8>) at ../../gcc/tree.c:4521
#6 0x00000000007b4473 in build_lang_decl_loc (loc=7698, code=FUNCTION_DECL,
name=<identifier_node 0x7ffff1a0b688 _GLOBAL__sub_I_b>,
type=<function_type 0x7ffff188a0a8>) at ../../gcc/cp/lex.c:540
#7 0x00000000007b4446 in build_lang_decl (code=FUNCTION_DECL,
name=<identifier_node 0x7ffff1a0b688 _GLOBAL__sub_I_b>,
type=<function_type 0x7ffff188a0a8>) at ../../gcc/cp/lex.c:529
#8 0x0000000000798cf3 in start_objects (method_type=73, initp=65535) at
../../gcc/cp/decl2.c:3319
#9 0x000000000079a388 in generate_ctor_or_dtor_function (constructor_p=true,
priority=65535, locus=0x7fffffffe130) at ../../gcc/cp/decl2.c:3925
#10 0x000000000079a479 in generate_ctor_and_dtor_functions_for_priority
(n=0x234b490, data=0x7fffffffe130) at ../../gcc/cp/decl2.c:3955
#11 0x00000000018d00ff in splay_tree_foreach_helper (data=0x7fffffffe130,
fn=0x79a42e <generate_ctor_and_dtor_functions_for_priority(splay_tree_node,
void*)>, node=0x234b490) at ../../libiberty/splay-tree.c:242
#12 splay_tree_foreach (sp=<optimized out>, fn=0x79a42e
<generate_ctor_and_dtor_functions_for_priority(splay_tree_node, void*)>,
data=0x7fffffffe130) at ../../libiberty/splay-tree.c:566
#13 0x000000000079c8b7 in cp_write_global_declarations () at
../../gcc/cp/decl2.c:4657
#14 0x0000000000f5f213 in compile_file () at ../../gcc/toplev.c:584
I don't see how the sanitizer could be at fault here, looks like an IPA bug to
me instead.