gcc/testsuite/gcc.target/i386/pr37101.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -msse2 -ftree-vectorize -march=nocona" } */
   3
   4 typedef __SIZE_TYPE__ size_t;
   5 extern void *malloc (size_t);
   6 extern void free (void *);
   7
   8 typedef struct _Resource
   9 {
  10   struct _Resource *next;
  11   unsigned int id;
  12 } ResourceRec, *ResourcePtr;
  13
  14 typedef struct _ClientResource
  15 {
  16   ResourcePtr *resources;
  17   int elements;
  18   int buckets;
  19   int hashsize;
  20 } ClientResourceRec;
  21
  22 static ClientResourceRec clientTable[256];
  23 int Hash (int, unsigned int);
  24
  25 void
  26 RebuildTable (int client)
  27 {
  28   int j;
  29   ResourcePtr res, next;
  30   ResourcePtr **tails, *resources;
  31   ResourcePtr **tptr, *rptr;
  32
  33   j = 2 * clientTable[client].buckets;
  34
  35   tails =
  36     (ResourcePtr **) malloc ((unsigned long) (j * sizeof (ResourcePtr *)));
  37   resources =
  38     (ResourcePtr *) malloc ((unsigned long) (j * sizeof (ResourcePtr)));
  39
  40   for (rptr = resources, tptr = tails; --j >= 0; rptr++, tptr++)
  41     {
  42       *rptr = ((ResourcePtr) ((void *) 0));
  43       *tptr = rptr;
  44     }
  45
  46   clientTable[client].hashsize++;
  47   for (j = clientTable[client].buckets,
  48        rptr = clientTable[client].resources; --j >= 0; rptr++)
  49     {
  50       for (res = *rptr; res; res = next)
  51         {
  52           next = res->next;
  53           res->next = ((ResourcePtr) ((void *) 0));
  54           tptr = &tails[Hash (client, res->id)];
  55           **tptr = res;
  56           *tptr = &res->next;
  57         }
  58     }
  59   free ((void *) tails);
  60   clientTable[client].buckets *= 2;
  61   free ((void *) clientTable[client].resources);
  62   clientTable[client].resources = resources;
  63 }
  64
  65 /* { dg-final { scan-assembler-not "movlps" } } */