mono/mini/regalloc.h

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