mono/mini/regalloc.h

   1 #if defined(__native_client__) && defined(__x86_64__)
   2 typedef guint64 regmask_t;
   3 #else
   4 typedef size_t regmask_t;
   5 #endif
   6
   7 enum {
   8         MONO_REG_INT,
   9         MONO_REG_DOUBLE,
  10         /* This is used only for allocating spill slots with GC tracking */
  11         MONO_REG_INT_REF,
  12         /* Ditto for managed pointers */
  13         MONO_REG_INT_MP,
  14         MONO_REG_SIMD
  15 };
  16
  17
  18 #ifdef MONO_ARCH_NEED_SIMD_BANK
  19 #define MONO_NUM_REGBANKS 5
  20 #else
  21 #define MONO_NUM_REGBANKS 4
  22 #endif
  23
  24 typedef struct {
  25         /* symbolic registers */
  26         int next_vreg;
  27
  28         regmask_t ifree_mask;
  29         regmask_t free_mask [MONO_NUM_REGBANKS];
  30
  31         /* symbolic -> hard register assignment */
  32         /*
  33          * If the register is spilled, then this contains -spill - 1, where 'spill'
  34          * is the index of the spill variable.
  35          */
  36         gint32 *vassign;
  37
  38         /* hard -> symbolic */
  39         int isymbolic [MONO_MAX_IREGS];
  40         int fsymbolic [MONO_MAX_FREGS];
  41 #ifdef MONO_ARCH_NEED_SIMD_BANK
  42         int xsymbolic [MONO_MAX_XREGS];
  43 #endif
  44         /* Points to the arrays above */
  45         int *symbolic [MONO_NUM_REGBANKS];
  46
  47         int vassign_size;
  48 } MonoRegState;
  49
  50 MonoRegState* mono_regstate_new (void) MONO_INTERNAL;
  51
  52 void          mono_regstate_free      (MonoRegState *rs) MONO_INTERNAL;