diff options
Diffstat (limited to 'gcc/regs.h')
| -rw-r--r-- | gcc/regs.h | 35 |
1 files changed, 25 insertions, 10 deletions
diff --git a/gcc/regs.h b/gcc/regs.h index c9dddb5abd1..6ae427cd197 100644 --- a/gcc/regs.h +++ b/gcc/regs.h @@ -218,13 +218,6 @@ extern short *reg_renumber; extern bool have_regs_of_mode [MAX_MACHINE_MODE]; -/* For each hard register, the widest mode object that it can contain. - This will be a MODE_INT mode if the register can hold integers. Otherwise - it will be a MODE_FLOAT or a MODE_CC mode, whichever is valid for the - register. */ - -extern enum machine_mode reg_raw_mode[FIRST_PSEUDO_REGISTER]; - /* Flag set by local-alloc or global-alloc if they decide to allocate something in a call-clobbered register. */ @@ -266,9 +259,6 @@ typedef unsigned short move_table[N_REG_CLASSES]; in another class. */ extern move_table *move_cost[MAX_MACHINE_MODE]; -/* Specify number of hard registers given machine mode occupy. */ -extern unsigned char hard_regno_nregs[FIRST_PSEUDO_REGISTER][MAX_MACHINE_MODE]; - /* Similar, but here we don't have to move if the first index is a subset of the second so in that case the cost is zero. */ extern move_table *may_move_in_cost[MAX_MACHINE_MODE]; @@ -277,6 +267,31 @@ extern move_table *may_move_in_cost[MAX_MACHINE_MODE]; superset of the second so in that case the cost is zero. */ extern move_table *may_move_out_cost[MAX_MACHINE_MODE]; +/* Target-dependent globals. */ +struct target_regs { + /* For each starting hard register, the number of consecutive hard + registers that a given machine mode occupies. */ + unsigned char x_hard_regno_nregs[FIRST_PSEUDO_REGISTER][MAX_MACHINE_MODE]; + + /* For each hard register, the widest mode object that it can contain. + This will be a MODE_INT mode if the register can hold integers. Otherwise + it will be a MODE_FLOAT or a MODE_CC mode, whichever is valid for the + register. */ + enum machine_mode x_reg_raw_mode[FIRST_PSEUDO_REGISTER]; +}; + +extern struct target_regs default_target_regs; +#if SWITCHABLE_TARGET +extern struct target_regs *this_target_regs; +#else +#define this_target_regs (&default_target_regs) +#endif + +#define hard_regno_nregs \ + (this_target_regs->x_hard_regno_nregs) +#define reg_raw_mode \ + (this_target_regs->x_reg_raw_mode) + /* Return an exclusive upper bound on the registers occupied by hard register (reg:MODE REGNO). */ |