https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85878
Bug ID: 85878
Summary: [6/7/8/9 Regression] ICE in convert_mode_scalar, at
expr.c:287
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: ---
Affects versions down to 5 at -O[gs123], with undefined variable "a" :
$ cat z1.f90
program p
real :: a
complex :: c = (2.0, 3.0)
print *, c
print *, transfer(a, c)
end
$ gfortran-4.9 z1.f90 -O2
$ a.out
( 2.00000000 , 3.00000000 )
( 0.00000000 , 0.00000000 )
$ gfortran-9-20180520 -c z1.f90 -O2
during RTL pass: expand
z1.f90:5:0:
print *, transfer(a, c)
internal compiler error: in convert_mode_scalar, at expr.c:287
0x8f9fe9 convert_mode_scalar
../../gcc/expr.c:287
0x8f9fe9 convert_move(rtx_def*, rtx_def*, int)
../../gcc/expr.c:271
0x900ba5 store_expr_with_bounds(tree_node*, rtx_def*, int, bool, bool,
tree_node*)
../../gcc/expr.c:5728
0x902093 expand_assignment(tree_node*, tree_node*, bool)
../../gcc/expr.c:5159
0x8041cc expand_gimple_stmt_1
../../gcc/cfgexpand.c:3714
0x8041cc expand_gimple_stmt
../../gcc/cfgexpand.c:3810
0x8059fd expand_gimple_basic_block
../../gcc/cfgexpand.c:5835
0x80ae86 execute
../../gcc/cfgexpand.c:6441
