gcc/testsuite/gcc.dg/pr80170.c

   1 /* { dg-do run } */
   2 /* { dg-options "-fgimple -O2 -ftree-slp-vectorize" } */
   3 /* { dg-require-effective-target ptr32plus } */
   4
   5 struct  A
   6 {
   7   void * a;
   8   void * b;
   9 };
  10
  11 struct __attribute__((aligned(16))) B
  12 {
  13   void * pad;
  14   void * misaligned;
  15   void * pad2;
  16
  17   struct A a;
  18 };
  19
  20 __attribute__((noclone, noinline))
  21 void __GIMPLE (startwith("slp"))
  22 NullB (void * misalignedPtr)
  23 {
  24   struct B * b;
  25
  26   bb_2:
  27   b_2 = misalignedPtr_1(D) + _Literal (__SIZETYPE__) -__SIZEOF_POINTER__;
  28   __MEM <struct B> (b_2).a.a = _Literal (void *) 0;
  29   __MEM <struct B> (b_2).a.b = _Literal (void *) 0;
  30   return;
  31
  32 }
  33
  34 int main()
  35 {
  36   struct B b;
  37   NullB (&b.misaligned);
  38   return 0;
  39 }