test/FrontendC/2008-08-07-AlignPadding1.c

   1 /* RUN: %llvmgcc %s -S -o - -emit-llvm -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 };