gcc/testsuite/g++.dg/tree-ssa/ssa-sra-3.C

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2" } */
   3 /* Test check use_block_copy bit propagation in sra element hierarchy.  */
   4
   5 typedef unsigned char UINT8 ;
   6 typedef unsigned int UINT ;
   7 class C4
   8 {
   9 public:
  10   int xy[2];
  11 };
  12
  13 class C3
  14 {
  15 public:
  16   inline void
  17   Reset()
  18   {
  19     C4 const mvMax = {0x7fff, 0x7fff};
  20
  21     m42(0,mvMax);
  22     m42(1,mvMax);
  23     m43(0);
  24   };
  25
  26   inline void m42 (UINT  i, C4 mv)
  27   {
  28     mMv[i] = mv;
  29   };
  30
  31
  32
  33   inline void  m43(UINT j)
  34   {
  35     m44 (j);
  36     d41 = j + 1;
  37   };
  38
  39 private:
  40
  41   C4 mMv[2];
  42   UINT8 d41;
  43   inline void m44 (UINT j) const {};
  44 };
  45
  46 class C2
  47 {
  48 private:
  49   bool valid;
  50 };
  51
  52 class C1
  53 {
  54 public:
  55   void m1(C3 *c);
  56
  57 private:
  58   const C2 * d1[2];
  59   void m2(C3 *m);
  60 };
  61
  62 void C1::m1 (C3 *r)
  63 {
  64   C3 x;
  65   m2(&x);
  66 }
  67 void C1::m2(C3 *x)
  68 {
  69   C3 m3;
  70   int i;
  71   m3.Reset ();
  72   for(i=0; i<2; i++)
  73     {
  74       const C2 * r = d1[i];
  75       if (r!=__null)
  76         {
  77           C4 const c400 = {0,0};
  78           m3.m42 (i, c400);
  79
  80         }
  81     }
  82 }
  83