https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90900
Bug ID: 90900
Summary: [8/9/10 Regression] ICE in copy_rtx, at rtl.c:376
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Started with gcc-8 (before 20180525) :
$ cat z1.c
void f (int a)
{
void *x = &&lab;
#pragma omp parallel
if (a)
{ lab: __builtin_unreachable(); }
x;
}
$ gcc-7 -c z1.c -fopenmp -O2 -g
$
$ gcc-10-20190609 -c z1.c -fopenmp -O2
$
$ gcc-10-20190609 -c z1.c -fopenmp -O2 -g
during RTL pass: expand
z1.c: In function 'f':
z1.c:1:6: internal compiler error: in copy_rtx, at rtl.c:376
1 | void f (int a)
| ^
0xa2661a copy_rtx(rtx_def*)
../../gcc/rtl.c:376
0x6cb65d expand_debug_expr
../../gcc/cfgexpand.c:4403
0x6cb848 expand_debug_expr
../../gcc/cfgexpand.c:4980
0x6d537a expand_debug_locations
../../gcc/cfgexpand.c:5455
0x6d537a execute
../../gcc/cfgexpand.c:6525
