https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80270
Bug ID: 80270
Summary: ICE in extract_bit_field_1 at gcc/expmed.c:1798
Product: gcc
Version: 4.8.5
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: aivchenk at gmail dot com
Target Milestone: ---
> cat struct_hard_reg.c
#include <stdio.h>
typedef int v8 __attribute__((vector_size(8)));
struct S1 {
v8 s1f;
};
struct S2 {
struct S1 s2f1;
v8 s2f2;
};
void fn1() {
int __trans_tmp_2, i = 3;
register struct S2 b asm("xmm0");
__trans_tmp_2 = b.s2f1.s1f[i];
printf("%d", __trans_tmp_2);
}
> gcc ./struct_hard_reg.c -O1
./new_bug.c: In function ‘fn1’:
./new_bug.c:17:3: internal compiler error: Segmentation fault
printf("%d", __trans_tmp_2);
^~~~~~~~~~~~~~~~~~~~~~~~~~~
0xe92cda crash_signal
../../gcc/gcc/toplev.c:337
0xa3284a extract_bit_field_1
../../gcc/gcc/expmed.c:1798
0xa32e01 extract_bit_field(rtx_def*, unsigned long, unsigned long, int,
rtx_def*, machine_mode, machine_mode, bool)
../../gcc/gcc/expmed.c:1932
0xa63501 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
../../gcc/gcc/expr.c:10702
0xa5821f expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**, bool)
../../gcc/gcc/expr.c:8072
0xa5f27e expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
../../gcc/gcc/expr.c:9775
0xa5821f expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**, bool)
../../gcc/gcc/expr.c:8072
0x8d448f expand_normal
../../gcc/gcc/expr.h:282
0x8d647d precompute_register_parameters
../../gcc/gcc/calls.c:956
