https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89047
Bug ID: 89047
Summary: ICE in mark_scope_block_unused, at tree-ssa-live.c:391
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
With option -fopenacc, down to at least version 5 :
$ cat z1.f90
real function f()
!$acc update device (f)
end
$ gfortran-9-20190120 -c z1.f90 -fopenacc
during RTL pass: expand
z1.f90:1:0:
1 | real function f()
|
internal compiler error: Segmentation fault
0xb3658f crash_signal
../../gcc/toplev.c:326
0x77c937 clear_tree_used
../../gcc/cfgexpand.c:1753
0x788d9a expand_used_vars
../../gcc/cfgexpand.c:2080
0x78aca2 execute
../../gcc/cfgexpand.c:6376
---
$ gfortran-9-20190120 -c z1.f90 -fopenacc -O2 -g
$
$ gfortran-9-20190120 -c z1.f90 -fopenacc -O2
during GIMPLE pass: ssa
z1.f90:3:0:
3 | end
|
internal compiler error: Segmentation fault
0xb3658f crash_signal
../../gcc/toplev.c:326
0xc2a3f1 mark_scope_block_unused
../../gcc/tree-ssa-live.c:391
0xc2a41a mark_scope_block_unused
../../gcc/tree-ssa-live.c:395
0xc2b751 remove_unused_locals()
../../gcc/tree-ssa-live.c:741
0xa70f44 execute_function_todo
../../gcc/passes.c:1955
0xa71e32 execute_todo
../../gcc/passes.c:2031
