http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57845
Bug ID: 57845
Summary: ICE with -freg-struct-return on Sparc target
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: adam at os dot inf.tu-dresden.de
Host: x86_64
Target: sparc
The following code produces an ICE for a Sparc target, with 4.9.0. Also tested
4.7.4 and 4.8.2 with same result. No ICE for target x86 for any version tested.
No ICE with-freg-struct-return removed.
class foo
{
public:
struct r { };
};
class c
{
foo::r func(foo::r);
};
foo::r c::func(foo::r x)
{
return x;
}
$ sparc-linux-g++ -m32 -c -freg-struct-return x.i
x.i: In member function ‘foo::r c::func(foo::r)’:
x.i:15:10: internal compiler error: in emit_move_insn, at expr.c:3486
return x;
^
0x85ba84 emit_move_insn(rtx_def*, rtx_def*)
/tmp/gcc/head/gcc/gcc/expr.c:3485
0xa80620 expand_value_return
/tmp/gcc/head/gcc/gcc/stmt.c:1460
0x78f5f1 expand_gimple_stmt_1
/tmp/gcc/head/gcc/gcc/cfgexpand.c:2248
0x78f5f1 expand_gimple_stmt
/tmp/gcc/head/gcc/gcc/cfgexpand.c:2370
0x7910a7 expand_gimple_basic_block
/tmp/gcc/head/gcc/gcc/cfgexpand.c:4204
0x793806 gimple_expand_cfg
/tmp/gcc/head/gcc/gcc/cfgexpand.c:4723
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
Adam
