gcc/testsuite/gcc.dg/pr90756.c

   1 /* PR rtl-optimization/90756 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -Wno-psabi" } */
   4 /* { dg-additional-options "-mno-sse" { target ia32 } } */
   5 /* { dg-additional-options "-fno-common" { target hppa*-*-hpux* } } */
   6
   7 typedef float B __attribute__((vector_size(4 * sizeof (float))));
   8 typedef unsigned long long C __attribute__((vector_size(4 * sizeof (long long))));
   9 typedef short D __attribute__((vector_size(4 * sizeof (short))));
  10 B z;
  11 void foo (C);
  12 C bar (D);
  13 B baz ();
  14 D qux (B);
  15
  16 void
  17 quux (int x)
  18 {
  19   B n = z, b = z;
  20   while (1)
  21     switch (x)
  22       {
  23       case 0: n = baz (); /* FALLTHRU */
  24       case 1: { B o = n; n = b; b = o; } /* FALLTHRU */
  25       case 2: { D u = qux (b); C v = bar (u); foo (v); }
  26       }
  27 }