https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99322
Bug ID: 99322
Summary: [11 Regression] ICE in change_scope, at final.c:1480
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Changed between 20201018 and 20201108 :
$ cat z1.c
void g ();
void f ()
{
#pragma omp parallel
for (;;)
for (int i = 0; i < 8; ++i)
g ();
{ L1: }
&&L1;
}
$ gcc-11-20210228 -c z1.c -fopenmp -O2 -g
$ gcc-11-20210228 -c z1.c -fopenmp -O3
$
$ gcc-11-20210228 -c z1.c -fopenmp -O3 -g
during RTL pass: final
z1.c: In function 'f._omp_fn.0':
z1.c:4:11: internal compiler error: Segmentation fault
4 | #pragma omp parallel
| ^~~
0xb5eeff crash_signal
../../gcc/toplev.c:327
0x87295d change_scope
../../gcc/final.c:1480
0x8792c1 reemit_insn_block_notes
../../gcc/final.c:1581
0x8792c1 final_start_function_1
../../gcc/final.c:1785
0x879549 rest_of_handle_final
../../gcc/final.c:4675
0x879549 execute
../../gcc/final.c:4754
---
z1.c: In function 'f._omp_fn.0':
z1.c:10:1: error: location references block not in block tree
10 | }
| ^
L1:
during IPA pass: *free_lang_data
z1.c:10:1: internal compiler error: verify_gimple failed
0xd94884 verify_gimple_in_cfg(function*, bool)
../../gcc/tree-cfg.c:5477
0xc45d3e execute_function_todo
../../gcc/passes.c:2042
0xc46b7d do_per_function
../../gcc/passes.c:1694
0xc46be2 execute_todo
../../gcc/passes.c:2096
