1 /* { dg-do compile } */
2 
3 /* Force big-endian because for little-endian, combine generates this:
4 
5  (if_then_else (ne (zero_extract:DI (subreg:DI (truncate:SI (reg:DI 196)) 0)
6                  (const_int 1)
7                  (const_int 0))
8              (const_int 0))
9          (label_ref 20)
10          (pc)))
11 
12   which does not get recognized as a valid bbit pattern.  The
13   middle-end should be able to simplify this further.  */
14 /* { dg-options "-march=octeon -meb" } */
15 /* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */
16 
17 /* { dg-final { scan-assembler-times "\tbbit\[01\]\t|\tbgez\t|\tbltz\t" 2 } } */
18 /* { dg-final { scan-assembler-not "ext\t" } } */
19 
20 void abort (void);
21 void abort1 (void);
22 void exit (int);
23 
24 typedef unsigned long long ulong64;
25 
26 typedef struct bitfield_s {
27   ulong64 a:1;
28   ulong64 b:29;
29   ulong64 c:1;
30   ulong64 d:15;
31   ulong64 f:18;
32 } bitfield_t;
33 
34 void foo (bitfield_t*);
35 
36 bitfield_t bar;
37 
38 NOMIPS16 void
f()39 f ()
40 {
41   foo(&bar);
42   if (bar.a != 0x1)
43     abort ();
44   else if (!bar.c)
45     abort1 ();
46   else
47     exit (0);
48 }
49