gcc/testsuite/gcc.target/aarch64/insv_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 eight: 8;
  10   unsigned short four: 4;
  11   unsigned short five: 5;
  12   unsigned short seven: 7;
  13   unsigned int sixteen: 16;
  14 } bitfield;
  15
  16 bitfield
  17 bfi1 (bitfield a)
  18 {
  19   /* { dg-final { scan-assembler "bfi\tx\[0-9\]+, x\[0-9\]+, 56, 8" } } */
  20   a.eight = 3;
  21   return a;
  22 }
  23
  24 bitfield
  25 bfi2 (bitfield a)
  26 {
  27   /* { dg-final { scan-assembler "bfi\tx\[0-9\]+, x\[0-9\]+, 43, 5" } } */
  28   a.five = 7;
  29   return a;
  30 }
  31
  32 bitfield
  33 movk (bitfield a)
  34 {
  35   /* { dg-final { scan-assembler "movk\tx\[0-9\]+, 0x1d6b, lsl 16" } } */
  36   a.sixteen = 7531;
  37   return a;
  38 }
  39
  40 bitfield
  41 set1 (bitfield a)
  42 {
  43   /* { dg-final { scan-assembler "orr\tx\[0-9\]+, x\[0-9\]+, 272678883688448" } } */
  44   a.five = 0x1f;
  45   return a;
  46 }
  47
  48 bitfield
  49 set0 (bitfield a)
  50 {
  51   /* { dg-final { scan-assembler "and\tx\[0-9\]+, x\[0-9\]+, -272678883688449" } } */
  52   a.five = 0;
  53   return a;
  54 }
  55
  56
  57 int
  58 main (int argc, char** argv)
  59 {
  60   static bitfield a;
  61   bitfield b = bfi1 (a);
  62   bitfield c = bfi2 (b);
  63   bitfield d = movk (c);
  64
  65   if (d.eight != 3)
  66     abort ();
  67
  68   if (d.five != 7)
  69     abort ();
  70
  71   if (d.sixteen != 7531)
  72     abort ();
  73
  74   d = set1 (d);
  75   if (d.five != 0x1f)
  76     abort ();
  77
  78   d = set0 (d);
  79   if (d.five != 0)
  80     abort ();
  81
  82   return 0;
  83 }
  84