gcc/testsuite/gcc.dg/tree-ssa/pr81744.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -fno-tree-loop-vectorize -fno-tree-slp-vectorize -fno-inline -fdump-tree-pcom-details" } */
   3
   4 typedef struct {
   5   int a, b;
   6 } CompandSegment;
   7 int a;
   8 CompandSegment *b;
   9 void fn1() {
  10   for (; a; a++)
  11     b[a].a = b[a].b = b[a - 1].a = b[a - 1].b = 0;
  12 }
  13 /* { dg-final { scan-tree-dump-times "Store-stores chain" 2 "pcom"} } */