https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95375
Bug ID: 95375
Summary: ICE in add_use_op, Error: mismatching comparison
operand types
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
An inconsistent interface hits versions down to at least r5 :
(detected without bind(c))
$ cat z1.f90
function f() result(n) bind(c)
class(*), allocatable :: n
end
program p
interface
function f() result(n) bind(c)
integer :: n
end
end interface
if ( f() /= 0 ) stop
end
$ gfortran-11-20200524 -c z1.f90
during GIMPLE pass: ssa
z1.f90:11:0:
11 | end
|
internal compiler error: Segmentation fault
0xbc0f6f crash_signal
../../gcc/toplev.c:328
0xd0a3e0 add_use_op
../../gcc/tree-ssa-operands.c:377
0xd0a3e0 operands_scanner::finalize_ssa_uses()
../../gcc/tree-ssa-operands.c:480
0xd0a3e0 operands_scanner::finalize_ssa_stmt_operands()
../../gcc/tree-ssa-operands.c:506
0xd0a3e0 operands_scanner::build_ssa_operands()
../../gcc/tree-ssa-operands.c:1014
0xd0aa10 update_stmt_operands(function*, gimple*)
../../gcc/tree-ssa-operands.c:1155
0xc3a754 update_stmt
../../gcc/gimple-ssa.h:175
0xc3a754 mark_def_sites
../../gcc/tree-into-ssa.c:649
0xc3a754 mark_def_dom_walker::before_dom_children(basic_block_def*)
../../gcc/tree-into-ssa.c:2342
0x13a3e44 dom_walker::walk(basic_block_def*)
../../gcc/domwalk.c:309
0xc3cd85 execute
../../gcc/tree-into-ssa.c:2459
Configured with --enable-checking=yes :
$ gfortran-11-20200524 -c z1.f90
z1.f90:4:0:
4 | program p
|
Error: mismatching comparison operand types
struct __class__STAR_a
integer(kind=4)
if (D.3926 != 0) goto <D.3927>; else goto <D.3928>;
z1.f90:4:0: internal compiler error: 'verify_gimple' failed
0xd9b27d verify_gimple_in_seq(gimple*)
../../gcc/tree-cfg.c:5113
0xa526b1 gimplify_body(tree_node*, bool)
../../gcc/gimplify.c:14919
0xa52967 gimplify_function_tree(tree_node*)
../../gcc/gimplify.c:14990
0x88d9e7 cgraph_node::analyze()
../../gcc/cgraphunit.c:671
0x890e21 analyze_functions
../../gcc/cgraphunit.c:1231
0x892042 symbol_table::finalize_compilation_unit()
../../gcc/cgraphunit.c:2975
