gcc/testsuite/gcc.target/aarch64/bfxil_2.c

   1 /* { dg-do run { target aarch64*-*-* } } */
   2 /* { dg-options "-O2 --save-temps -fno-inline" } */
   3 /* { dg-require-effective-target aarch64_big_endian } */
   4
   5 extern void abort (void);
   6
   7 typedef struct bitfield
   8 {
   9   unsigned short eight1: 8;
  10   unsigned short four: 4;
  11   unsigned short eight2: 8;
  12   unsigned short seven: 7;
  13   unsigned int sixteen: 16;
  14   unsigned short eight3: 8;
  15   unsigned short eight4: 8;
  16 } bitfield;
  17
  18 bitfield
  19 bfxil (bitfield a)
  20 {
  21   /* { dg-final { scan-assembler "bfxil\tx\[0-9\]+, x\[0-9\]+, 40, 8" } } */
  22   a.eight4 = a.eight2;
  23   return a;
  24 }
  25
  26 int
  27 main (void)
  28 {
  29   static bitfield a;
  30   bitfield b;
  31
  32   a.eight4 = 9;
  33   a.eight2 = 57;
  34   b = bfxil (a);
  35
  36   if (b.eight4 != a.eight2)
  37     abort ();
  38
  39   return 0;
  40 }
  41