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      1 /* RUN: %llvmgcc %s -S -o - -O0 | grep {zeroinitializer.*zeroinitializer.*zeroinitializer.*zeroinitializer.*zeroinitializer.*zeroinitializer}
      2 
      3 The FE must generate padding here both at the end of each PyG_Head and
      4 between array elements.  Reduced from Python. */
      5 
      6 typedef union _gc_head {
      7   struct {
      8     union _gc_head *gc_next;
      9     union _gc_head *gc_prev;
     10     long gc_refs;
     11   } gc;
     12   int dummy __attribute__((aligned(16)));
     13 } PyGC_Head;
     14 
     15 struct gc_generation {
     16   PyGC_Head head;
     17   int threshold;
     18   int count;
     19 };
     20 
     21 #define GEN_HEAD(n) (&generations[n].head)
     22 
     23 /* linked lists of container objects */
     24 static struct gc_generation generations[3] = {
     25         /* PyGC_Head,                           threshold,      count */
     26         {{{GEN_HEAD(0), GEN_HEAD(0), 0}},       700,            0},
     27         {{{GEN_HEAD(1), GEN_HEAD(1), 0}},       10,             0},
     28         {{{GEN_HEAD(2), GEN_HEAD(2), 0}},       10,             0},
     29 };
     30