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[Bug sanitizer/81111] Cannot build libstdc++ with -fsanitize=undefined
- From: "redi at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 16 Jun 2017 10:37:20 +0000
- Subject: [Bug sanitizer/81111] Cannot build libstdc++ with -fsanitize=undefined
- Auto-submitted: auto-generated
- References: <bug-81111-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81111
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2017-06-16
Ever confirmed|0 |1
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Reduced:
template<typename _Value>
struct __numeric_traits_integer
{
static const _Value __min = (((_Value)(-1) < 0) ? (_Value)1 <<
(sizeof(_Value) * 8 - ((_Value)(-1) < 0)) : (_Value)0);
};
template<typename _Value>
const _Value __numeric_traits_integer<_Value>::__min;
void f()
{
__numeric_traits_integer<unsigned long long>::__min;
}
$ /home/jwakely/src/gcc/build/gcc/cc1plus -fsanitize=undefined -m32 -quiet
ice.cc
ice.cc: In instantiation of ‘const long long unsigned int
__numeric_traits_integer<long long unsigned int>::__min’:
ice.cc:13:49: required from here
ice.cc:5:65: internal compiler error: Segmentation fault
static const _Value __min = (((_Value)(-1) < 0) ? (_Value)1 <<
(sizeof(_Value) * 8 - ((_Value)(-1) < 0)) : (_Value)0);
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0xde006f crash_signal
/home/jwakely/src/gcc/gcc/gcc/toplev.c:338
0xb2ba10 tree_check(tree_node*, char const*, int, char const*, tree_code)
/home/jwakely/src/gcc/gcc/gcc/tree.h:3082
0xb2ba10 gimple_body(tree_node*)
/home/jwakely/src/gcc/gcc/gcc/gimple-expr.c:317
0xb538a4 gimple_add_tmp_var(tree_node*)
/home/jwakely/src/gcc/gcc/gcc/gimplify.c:753
0xb2c1ea create_tmp_var(tree_node*, char const*)
/home/jwakely/src/gcc/gcc/gcc/gimple-expr.c:477
0xe02151 ubsan_encode_value(tree_node*, bool)
/home/jwakely/src/gcc/gcc/gcc/ubsan.c:146
0x936fd4 ubsan_instrument_shift(unsigned int, tree_code, tree_node*,
tree_node*)
/home/jwakely/src/gcc/gcc/gcc/c-family/c-ubsan.c:215
0x8a960d cp_build_binary_op(unsigned int, tree_code, tree_node*, tree_node*,
int)
/home/jwakely/src/gcc/gcc/gcc/cp/typeck.c:5282
0x671fca build_new_op_1
/home/jwakely/src/gcc/gcc/gcc/cp/call.c:6019
0x6730de build_new_op(unsigned int, tree_code, int, tree_node*, tree_node*,
tree_node*, tree_node**, int)
/home/jwakely/src/gcc/gcc/gcc/cp/call.c:6064
0x89a252 build_x_binary_op(unsigned int, tree_code, tree_node*, tree_code,
tree_node*, tree_code, tree_node**, int)
/home/jwakely/src/gcc/gcc/gcc/cp/typeck.c:3959
0x810657 tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
/home/jwakely/src/gcc/gcc/gcc/cp/pt.c:16921
0x812f16 tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
/home/jwakely/src/gcc/gcc/gcc/cp/pt.c:17469
0x806f4e tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
/home/jwakely/src/gcc/gcc/gcc/cp/pt.c:16534
0x801db0 regenerate_decl_from_template
/home/jwakely/src/gcc/gcc/gcc/cp/pt.c:22419
0x801db0 instantiate_decl(tree_node*, bool, bool)
/home/jwakely/src/gcc/gcc/gcc/cp/pt.c:22854
0x72831f maybe_instantiate_decl
/home/jwakely/src/gcc/gcc/gcc/cp/decl2.c:4995
0x72af55 mark_used(tree_node*, int)
/home/jwakely/src/gcc/gcc/gcc/cp/decl2.c:5094
0x86759a finish_id_expression(tree_node*, tree_node*, tree_node*, cp_id_kind*,
bool, bool, bool*, bool, bool, bool, bool, char const**, unsigned int)
/home/jwakely/src/gcc/gcc/gcc/cp/semantics.c:3705
0x7a3603 cp_parser_primary_expression
/home/jwakely/src/gcc/gcc/gcc/cp/parser.c:5325
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