old-autovect-branch/gcc/testsuite/gcc.target/xstormy16/sfr/25_clr_sfrw_bitfield_0.c

   1 /* { dg-options { -nostartfiles below100.o -Tbelow100.ld -O2 } } */
   2 /* { dg-final { scan-assembler "clr1 32532,#0" } } */
   3
   4 typedef struct
   5 {
   6   unsigned short b0:1;
   7   unsigned short b1:1;
   8   unsigned short b2:1;
   9   unsigned short b3:1;
  10   unsigned short b4:1;
  11   unsigned short b5:1;
  12   unsigned short b6:1;
  13   unsigned short b7:1;
  14   unsigned short b8:1;
  15   unsigned short b9:1;
  16   unsigned short b10:1;
  17   unsigned short b11:1;
  18   unsigned short b12:1;
  19   unsigned short b13:1;
  20   unsigned short b14:1;
  21   unsigned short b15:1;
  22 } BitField;
  23
  24 #define SFR (*((volatile BitField*)0x7f14))
  25 unsigned short *p = (unsigned short *) 0x7f14;
  26
  27 void
  28 Do (void)
  29 {
  30   SFR.b0 = 0;
  31 }
  32
  33 int
  34 main (void)
  35 {
  36   *p = 0xedcb;
  37   Do ();
  38   return (*p == 0xedca) ? 0 : 1;
  39 }