gcc/testsuite/gcc.dg/auto-init-sra-2.c

   1 /* Verify that SRA total scalarization will not be confused by padding
   2    and also not confused by auto initialization.  */
   3 /* { dg-do compile } */
   4 /* { dg-options "-O1 --param sra-max-scalarization-size-Ospeed=16 -fdump-tree-release_ssa -ftrivial-auto-var-init=pattern" } */
   5
   6 struct S
   7 {
   8   int i;
   9   unsigned short f1;
  10   char f2;
  11   unsigned short f3, f4;
  12 };
  13
  14
  15 int foo (struct S *p)
  16 {
  17   struct S l;
  18
  19   l = *p;
  20   l.i++;
  21   *p = l;
  22 }
  23
  24 /* { dg-final { scan-tree-dump-times "l;" 0 "release_ssa" } } */