gcc/testsuite/gcc.target/mips/pr68400.c

   1 /* PR target/pr68400
   2    This was triggering an ICE in change_address_1 when compiled with -Os.  */
   3
   4 /* { dg-do compile } */
   5 /* { dg-options "-fstack-protector -mips16" } */
   6
   7 typedef struct s {
   8  unsigned long long d;
   9  long long t;
  10 } p;
  11
  12 int sh(int x, unsigned char *buf)
  13 {
  14  p *uhdr = (p *)buf;
  15  unsigned int i = 0;
  16  uhdr->d = ((uhdr->d & 0xff00000000000000LL) >> 56)
  17             | ((uhdr->d & 0x0000ff0000000000LL) >> 24)
  18             | ((uhdr->d & 0x00000000ff000000LL) << 8)
  19             | ((uhdr->d & 0x00000000000000ffLL) << 56);
  20  uhdr->t = ((uhdr->t & 0xff00000000000000LL) >> 56)
  21                 | ((uhdr->t & 0x0000ff0000000000LL) >> 24)
  22                 | ((uhdr->t & 0x000000ff00000000LL) >> 8)
  23                 | ((uhdr->t & 0x00000000ff000000LL) << 8)
  24                 | ((uhdr->t & 0x000000000000ff00LL) << 40)
  25                 | ((uhdr->t & 0x00000000000000ffLL) << 56);
  26  i += 4;
  27  if (x < i) return 0; else return 1;
  28 }