gcc/testsuite/gcc.target/i386/warn-vect-op-3.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 (8, short) v0 = {argc, 1, 15, 38, 12, -1, argc, 2};
   9   vector (8, short) v1 = {-4, argc, 2, 11, 1, 17, -8, argc};
  10   vector (8, short) res[] =
  11   {
  12     v0 + v1,          /* { dg-warning "expanded in parallel" }  */
  13     v0 - v1,          /* { dg-warning "expanded in parallel" }  */
  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 }