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()39f () 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