https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89211
Bug ID: 89211
Summary: [8/9 Regression] ICE in int_mode_for_mode, at
stor-layout.c:403
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Changed before 20180525, gcc-7 compiles it :
$ cat z1.c
void f ();
void f ()
{
void f (struct S);
}
$ gcc-9-20190203 -c z1.c
z1.c: In function 'f':
z1.c:4:18: warning: 'struct S' declared inside parameter list will not be
visible outside of this definition or declaration
4 | void f (struct S);
| ^
during RTL pass: expand
z1.c:2:6: internal compiler error: in int_mode_for_mode, at stor-layout.c:403
2 | void f ()
| ^
0xa7d44b int_mode_for_mode(machine_mode)
../../gcc/stor-layout.c:403
0x7c7fde emit_move_via_integer
../../gcc/expr.c:3357
0x7d03c9 emit_move_insn_1(rtx_def*, rtx_def*)
../../gcc/expr.c:3718
0x7d06de emit_move_insn(rtx_def*, rtx_def*)
../../gcc/expr.c:3786
0x81d0d6 assign_parm_setup_reg
../../gcc/function.c:3336
0x81d0d6 assign_parms
../../gcc/function.c:3631
0x81d8f3 expand_function_start(tree_node*)
../../gcc/function.c:5069
0x6db723 execute
../../gcc/cfgexpand.c:6397
