gcc/testsuite/gcc.dg/pr65533.c

   1 /* PR tree-optimization/65533 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-Ofast -w" } */
   4
   5 struct A { int a[2]; };
   6 struct B { double b[2]; };
   7 struct C { double c[4][1]; };
   8
   9 static inline void
  10 bar (struct B *x, double y, double z)
  11 {
  12   x->b[0] = y;
  13   x->b[1] = z;
  14 }
  15
  16 void baz (struct B *);
  17
  18 void
  19 foo (struct C *x, struct A *y)
  20 {
  21   struct B d;
  22   bar (&d, x->c[1][0] * y->a[0] + x->c[0][1] * y->a[1] + x->c[0][0] * x->c[0][1],
  23        x->c[0][0] * y->a[0] + x->c[0][1] * y->a[1] + x->c[0][1] * y->a[0] + x->c[0][0]);
  24   baz (&d);
  25 }