gcc/testsuite/gcc.target/powerpc/pr79179.c

   1 /* { dg-do assemble { target { powerpc*-*-* && lp64 } } } */
   2 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
   3 /* { dg-require-effective-target powerpc_p9vector_ok } */
   4 /* { dg-options "-mcpu=power9 -O3" } */
   5
   6 /* Compile with -O3 -mcpu=power9.  It originally generated
   7
   8         stxsd 12,1(9)
   9
  10    which is illegal.  */
  11
  12 #pragma pack(1)
  13 struct {
  14         signed : 1;
  15         unsigned long a;
  16 } b;
  17
  18 void c(void)
  19 {
  20         b.a = 0;
  21         for (; b.a <= 45; b.a = (long)b.a + 1)
  22                 ;
  23 }