X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Ffunction.h;h=63295258c11c32b9f27e83eeb3d74dd49350332e;hb=ec63b02e28b96463d1361aa8d0d9b21899ccbf50;hp=8217200ff8be8502d773c404ae84ac36e2d12874;hpb=7036781e4ec2a9608452f68075ccc25a80374c2b;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/function.h b/gcc/function.h index 8217200ff8b..63295258c11 100644 --- a/gcc/function.h +++ b/gcc/function.h @@ -16,12 +16,15 @@ for more details. You should have received a copy of the GNU General Public License along with GCC; see the file COPYING. If not, write to the Free -Software Foundation, 59 Temple Place - Suite 330, Boston, MA -02111-1307, USA. */ +Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301, USA. */ #ifndef GCC_FUNCTION_H #define GCC_FUNCTION_H +#include "tree.h" +#include "hashtab.h" + struct var_refs_queue GTY(()) { rtx modified; @@ -156,6 +159,12 @@ struct expr_status GTY(()) #define forced_labels (cfun->expr->x_forced_labels) #define stack_pointer_delta (cfun->expr->x_stack_pointer_delta) +struct temp_slot; +typedef struct temp_slot *temp_slot_p; + +DEF_VEC_P(temp_slot_p); +DEF_VEC_ALLOC_P(temp_slot_p,gc); + /* This structure can save all the important global and static variables describing the status of the current function. */ @@ -166,13 +175,9 @@ struct function GTY(()) struct emit_status *emit; struct varasm_status *varasm; - /* For tree-optimize.c. */ - - /* Saved tree and arguments during tree optimization. Used later for - inlining */ - tree saved_tree; - tree saved_args; - tree saved_static_chain_decl; + /* The control flow graph for this function. */ + struct control_flow_graph *cfg; + bool after_inlining; /* For function.c. */ @@ -241,7 +246,7 @@ struct function GTY(()) rtx x_stack_slot_list; /* Place after which to insert the tail_recursion_label if we need one. */ - rtx x_tail_recursion_reentry; + rtx x_stack_check_probe_note; /* Location at which to save the argument pointer if it will need to be referenced. There are two cases where this is done: if nonlocal gotos @@ -267,7 +272,7 @@ struct function GTY(()) rtx x_parm_birth_insn; /* List of all used temporaries allocated, by level. */ - struct varray_head_tag * GTY((param_is (struct temp_slot))) x_used_temp_slots; + VEC(temp_slot_p,gc) *x_used_temp_slots; /* List of available temp slots. */ struct temp_slot *x_avail_temp_slots; @@ -314,6 +319,9 @@ struct function GTY(()) /* Language-specific code can use this to store whatever it likes. */ struct language_function * language; + /* Used types hash table. */ + htab_t GTY ((param_is (union tree_node))) used_types_hash; + /* For reorg. */ /* If some insns can be deferred to the delay slots of the epilogue, the @@ -344,11 +352,29 @@ struct function GTY(()) location_t function_end_locus; /* Array mapping insn uids to blocks. */ - struct varray_head_tag *ib_boundaries_block; + VEC(tree,gc) *ib_boundaries_block; /* The variables unexpanded so far. */ tree unexpanded_var_list; + /* Assembly labels for the hot and cold text sections, to + be used by debugger functions for determining the size of text + sections. */ + + const char *hot_section_label; + const char *cold_section_label; + const char *hot_section_end_label; + const char *cold_section_end_label; + + /* String to be used for name of cold text sections, via + targetm.asm_out.named_section. */ + + const char *unlikely_text_section_name; + + /* A variable living at the top of the frame that holds a known value. + Used for detecting stack clobbers. */ + tree stack_protect_guard; + /* Collected bit flags. */ /* Nonzero if function being compiled needs to be given an address @@ -369,6 +395,10 @@ struct function GTY(()) either as a subroutine or builtin. */ unsigned int calls_alloca : 1; + /* Nonzero if function being compiled called builtin_return_addr or + builtin_frame_address with nonzero count. */ + unsigned int accesses_prior_frames : 1; + /* Nonzero if the function calls __builtin_eh_return. */ unsigned int calls_eh_return : 1; @@ -423,8 +453,22 @@ struct function GTY(()) /* Nonzero if code to initialize arg_pointer_save_area has been emitted. */ unsigned int arg_pointer_save_area_init : 1; + + /* Number of units of general registers that need saving in stdarg + function. What unit is depends on the backend, either it is number + of bytes, or it can be number of registers. */ + unsigned int va_list_gpr_size : 8; + + /* Number of units of floating point registers that need saving in stdarg + function. */ + unsigned int va_list_fpr_size : 8; }; +/* If va_list_[gf]pr_size is set to this, it means we don't know how + many units need to be saved. */ +#define VA_LIST_MAX_GPR_SIZE 255 +#define VA_LIST_MAX_FPR_SIZE 255 + /* The function currently being compiled. */ extern GTY(()) struct function *cfun; @@ -444,6 +488,7 @@ extern int trampolines_created; #define current_function_returns_pointer (cfun->returns_pointer) #define current_function_calls_setjmp (cfun->calls_setjmp) #define current_function_calls_alloca (cfun->calls_alloca) +#define current_function_accesses_prior_frames (cfun->accesses_prior_frames) #define current_function_calls_eh_return (cfun->calls_eh_return) #define current_function_is_thunk (cfun->is_thunk) #define current_function_args_info (cfun->args_info) @@ -468,12 +513,11 @@ extern int trampolines_created; #define stack_slot_list (cfun->x_stack_slot_list) #define parm_birth_insn (cfun->x_parm_birth_insn) #define frame_offset (cfun->x_frame_offset) -#define tail_recursion_reentry (cfun->x_tail_recursion_reentry) +#define stack_check_probe_note (cfun->x_stack_check_probe_note) #define arg_pointer_save_area (cfun->x_arg_pointer_save_area) #define used_temp_slots (cfun->x_used_temp_slots) #define avail_temp_slots (cfun->x_avail_temp_slots) #define temp_slot_level (cfun->x_temp_slot_level) -#define nonlocal_labels (cfun->x_nonlocal_labels) #define nonlocal_goto_handler_labels (cfun->x_nonlocal_goto_handler_labels) /* Given a function decl for a containing function, @@ -500,6 +544,11 @@ extern void free_block_changes (void); the caller may have to do that. */ extern HOST_WIDE_INT get_frame_size (void); +/* Issue an error message and return TRUE if frame OFFSET overflows in + the signed target pointer arithmetics for function FUNC. Otherwise + return FALSE. */ +extern bool frame_offset_overflow (HOST_WIDE_INT, tree); + /* A pointer to a function to create target specific, per-function data structures. */ extern struct machine_function * (*init_machine_status) (void); @@ -513,20 +562,13 @@ extern void init_varasm_status (struct function *); #ifdef RTX_CODE extern void diddle_return_value (void (*)(rtx, void*), void*); extern void clobber_return_register (void); -extern void use_return_register (void); #endif extern rtx get_arg_pointer_save_area (struct function *); -extern void init_virtual_regs (struct emit_status *); -extern void instantiate_virtual_regs (void); - /* Returns the name of the current function. */ extern const char *current_function_name (void); -/* Called once, at initialization, to initialize function.c. */ -extern void init_function_once (void); - extern void do_warn_unused_parameter (tree); extern bool pass_by_reference (CUMULATIVE_ARGS *, enum machine_mode, @@ -534,4 +576,6 @@ extern bool pass_by_reference (CUMULATIVE_ARGS *, enum machine_mode, extern bool reference_callee_copied (CUMULATIVE_ARGS *, enum machine_mode, tree, bool); +extern void used_types_insert (tree); + #endif /* GCC_FUNCTION_H */