mono/mini/regalloc.h

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