gcc/testsuite/gcc.dg/vect/pr48765.c

   1 /* { dg-do compile { target powerpc*-*-* } } */
   2 /* { dg-options "-m64 -O3 -mcpu=power6" } */
   3
   4 enum reg_class
   5 {
   6   NO_REGS, AP_REG, XRF_REGS, GENERAL_REGS, AGRF_REGS, XGRF_REGS, ALL_REGS,
   7     LIM_REG_CLASSES
   8 };
   9 enum machine_mode
  10 {
  11   VOIDmode, QImode, HImode, PSImode, SImode, PDImode, DImode, TImode, OImode,
  12     QFmode, HFmode, TQFmode, SFmode, DFmode, XFmode, TFmode, SCmode, DCmode,
  13     XCmode, TCmode, CQImode, CHImode, CSImode, CDImode, CTImode, COImode,
  14     BLKmode, CCmode, CCEVENmode, MAX_MACHINE_MODE
  15 };
  16 typedef struct rtx_def
  17 {
  18   int mode:8;
  19 }
  20  *rtx;
  21 extern rtx *regno_reg_rtx;
  22 typedef unsigned int HARD_REG_ELT_TYPE;
  23 typedef HARD_REG_ELT_TYPE HARD_REG_SET[((64 + 32 - 1) / 32)];
  24 extern int reg_alloc_order[64];
  25 extern int max_regno;
  26 extern int *reg_n_calls_crossed;
  27 extern short *reg_renumber;
  28 static int *reg_where_dead;
  29 static int *reg_where_born;
  30 static int *reg_order;
  31 static char *regs_change_size;
  32 static HARD_REG_SET *after_insn_hard_regs;
  33 static int stupid_find_reg (int, enum reg_class, enum machine_mode, int, int,
  34                             int);
  35 void
  36 stupid_life_analysis (f, nregs, file)
  37      rtx f;
  38 {
  39   register int i;
  40   for (i = (((64)) + 3) + 1; i < max_regno; i++)
  41     {
  42       register int r = reg_order[i];
  43       if ((int) LIM_REG_CLASSES > 1)
  44         reg_renumber[r] =
  45           stupid_find_reg (reg_n_calls_crossed[r], reg_preferred_class (r),
  46                            ((regno_reg_rtx[r])->mode), reg_where_born[r],
  47                            reg_where_dead[r], regs_change_size[r]);
  48     }
  49 }
  50
  51 static int
  52 stupid_find_reg (call_preserved, class, mode, born_insn, dead_insn,
  53                  changes_size)
  54      int call_preserved;
  55      enum reg_class class;
  56      enum machine_mode mode;
  57 {
  58   register int i, ins;
  59   HARD_REG_SET used, this_reg;
  60   for (ins = born_insn; ins < dead_insn; ins++)
  61     do
  62       {
  63         register HARD_REG_ELT_TYPE *scan_tp_ = (used), *scan_fp_ =
  64           (after_insn_hard_regs[ins]);
  65         for (i = 0; i < ((64 + 32 - 1) / 32); i++)
  66           *scan_tp_++ |= *scan_fp_++;
  67       }
  68     while (0);
  69   for (i = 0; i < 64; i++)
  70     {
  71       int regno = reg_alloc_order[i];
  72       if (((used)[(regno) / ((unsigned) 32)] &
  73            (((HARD_REG_ELT_TYPE) (1)) << ((regno) % ((unsigned) 32)))))
  74         {
  75           register int j;
  76           if (j == regno)
  77             return regno;
  78         }
  79     }
  80 }
  81
  82 /* { dg-final { cleanup-tree-dump "vect" } } */