https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92478
Bug ID: 92478
Summary: [8 Regression] ICE: Segmentation fault
Product: gcc
Version: 8.3.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: anbu1024.me at gmail dot com
Target Milestone: ---
$ cat test.c
void bar ( char * a , unsigned int b )
{
static char const array[] = "STRING" ;
__builtin_strcpy (a , &array[b == 0] );
}
$ gcc-snapshot7 --version
gcc (GCC) 7.4.1 20191107
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
$ gcc-snapshot7 test.c
/usr/lib/x86_64-linux-gnu/crt1.o: In function `_start':
(.text+0x20): undefined reference to `main'
collect2: error: ld returned 1 exit status
$ gcc-snapshot8 --version
gcc (GCC) 8.3.1 20191108
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
$ gcc-snapshot8 test.c
during RTL pass: expand
test.c: In function ‘bar’:
test.c:6:5: internal compiler error: Segmentation fault
__builtin_strcpy (a , &array[b == 0] );
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0xa6514f crash_signal
../../gcc-8-20191108/gcc/toplev.c:325
0xcf9403 selt
../../gcc-8-20191108/gcc/wide-int.cc:404
0xcf9403 wi::lts_p_large(long const*, unsigned int, unsigned int, long const*,
unsigned int)
../../gcc-8-20191108/gcc/wide-int.cc:480
0x6b4773 bool wi::lts_p<generic_wide_int<wi::extended_tree<192> >,
generic_wide_int<wi::extended_tree<192> >
>(generic_wide_int<wi::extended_tree<192> > const&,
generic_wide_int<wi::extended_tree<192> > const&)
../../gcc-8-20191108/gcc/wide-int.h:1873
0x6b4773 wi::binary_traits<generic_wide_int<wi::extended_tree<192> >,
generic_wide_int<wi::extended_tree<192> >,
wi::int_traits<generic_wide_int<wi::extended_tree<192> > >::precision_type,
wi::int_traits<generic_wide_int<wi::extended_tree<192> >
>::precision_type>::signed_predicate_result operator<
<generic_wide_int<wi::extended_tree<192> >,
generic_wide_int<wi::extended_tree<192> >
>(generic_wide_int<wi::extended_tree<192> > const&,
generic_wide_int<wi::extended_tree<192> > const&)
../../gcc-8-20191108/gcc/wide-int.h:3170
0x6b4773 tree_int_cst_lt(tree_node const*, tree_node const*)
../../gcc-8-20191108/gcc/tree.h:5740
0x6b4773 check_access
../../gcc-8-20191108/gcc/builtins.c:3125
0x6bf482 expand_builtin_strcpy
../../gcc-8-20191108/gcc/builtins.c:3780
0x6bf482 expand_builtin(tree_node*, rtx_def*, rtx_def*, machine_mode, int)
../../gcc-8-20191108/gcc/builtins.c:6978
0x7c9591 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
../../gcc-8-20191108/gcc/expr.c:11062
0x6d935a expand_expr
../../gcc-8-20191108/gcc/expr.h:280
0x6d935a expand_call_stmt
../../gcc-8-20191108/gcc/cfgexpand.c:2704
0x6d935a expand_gimple_stmt_1
../../gcc-8-20191108/gcc/cfgexpand.c:3638
0x6d935a expand_gimple_stmt
../../gcc-8-20191108/gcc/cfgexpand.c:3804
0x6daf1f expand_gimple_basic_block
../../gcc-8-20191108/gcc/cfgexpand.c:5837
0x6e0446 execute
../../gcc-8-20191108/gcc/cfgexpand.c:6443
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
