gcc/testsuite/gcc.target/i386/warn-vect-op-1.c

   1 /* { dg-do compile { target { ! ia32 } } }  */
   2 /* { dg-options "-mno-sse -Wvector-operation-performance" }  */
   3 #define vector(elcount, type)  \
   4 __attribute__((vector_size((elcount)*sizeof(type)))) type
   5
   6 int main (int argc, char *argv[])
   7 {
   8   vector (4, int) v0 = {argc, 1, 15, 38};
   9   vector (4, int) v1 = {-4, argc, 2, 11};
  10   vector (4, int) res[] =
  11   {
  12     v0 + v1,      /* { dg-warning "expanded piecewise" }  */
  13     v0 - v1,      /* { dg-warning "expanded piecewise" }  */
  14     v0 > v1,      /* { dg-warning "expanded piecewise" }  */
  15     v0 & v1,      /* { dg-warning "expanded in parallel" }  */
  16     __builtin_shuffle (v0, v1),     /* { dg-warning "expanded piecewise" }  */
  17     __builtin_shuffle (v0, v1, v1)  /* { dg-warning "expanded piecewise" }  */
  18   };
  19
  20   return res[argc][argc];
  21 }