diff options
Diffstat (limited to 'gcc/function.h')
| -rw-r--r-- | gcc/function.h | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/gcc/function.h b/gcc/function.h index 34efb3157ab..c8357bf5ee0 100644 --- a/gcc/function.h +++ b/gcc/function.h @@ -264,8 +264,11 @@ struct GTY(()) rtl_data { the hard register containing the result. */ rtx return_rtx; - /* Opaque pointer used by get_hard_reg_initial_val and - has_hard_reg_initial_val (see integrate.[hc]). */ + /* Vector of initial-value pairs. Each pair consists of a pseudo + register of approprite mode that stores the initial value a hard + register REGNO, and that hard register itself. */ + /* ??? This could be a VEC but there is currently no way to define an + opaque VEC type. */ struct initial_value_struct *hard_reg_initial_vals; /* A variable living at the top of the frame that holds a known value. @@ -688,7 +691,6 @@ void types_used_by_var_decl_insert (tree type, tree var_decl); referenced by the global variable. */ extern GTY(()) VEC(tree,gc) *types_used_by_cur_var_decl; - /* cfun shouldn't be set directly; use one of these functions instead. */ extern void set_cfun (struct function *new_cfun); extern void push_cfun (struct function *new_cfun); @@ -760,6 +762,14 @@ extern int get_last_funcdef_no (void); extern bool requires_stack_frame_p (rtx, HARD_REG_SET, HARD_REG_SET); #endif +extern rtx get_hard_reg_initial_val (enum machine_mode, unsigned int); +extern rtx has_hard_reg_initial_val (enum machine_mode, unsigned int); +extern rtx get_hard_reg_initial_reg (rtx); +extern bool initial_value_entry (int i, rtx *, rtx *); + +/* Called from gimple_expand_cfg. */ +extern unsigned int emit_initial_value_sets (void); + /* In predict.c */ extern bool optimize_function_for_size_p (struct function *); extern bool optimize_function_for_speed_p (struct function *); |
