2001-11-24 Toon Moene <toon@moene.indiv.nluug.nl>

[pf3gnuchains/gcc-fork.git] / gcc / basic-block.h

diff --git a/gcc/basic-block.h b/gcc/basic-block.h
index 1a61328..253e1fd 100644 (file)
--- a/gcc/basic-block.h
+++ b/gcc/basic-block.h
@@ -83,19 +83,19 @@ do {                                                                        \
 } while (0)
 
 /* Loop over all registers in REGSET, starting with MIN, setting REGNUM to the
-   register number and executing CODE for all registers that are set. */
+   register number and executing CODE for all registers that are set.  */
 #define EXECUTE_IF_SET_IN_REG_SET(REGSET, MIN, REGNUM, CODE)           \
   EXECUTE_IF_SET_IN_BITMAP (REGSET, MIN, REGNUM, CODE)
 
 /* Loop over all registers in REGSET1 and REGSET2, starting with MIN, setting
    REGNUM to the register number and executing CODE for all registers that are
-   set in the first regset and not set in the second. */
+   set in the first regset and not set in the second.  */
 #define EXECUTE_IF_AND_COMPL_IN_REG_SET(REGSET1, REGSET2, MIN, REGNUM, CODE) \
   EXECUTE_IF_AND_COMPL_IN_BITMAP (REGSET1, REGSET2, MIN, REGNUM, CODE)
 
 /* Loop over all registers in REGSET1 and REGSET2, starting with MIN, setting
    REGNUM to the register number and executing CODE for all registers that are
-   set in both regsets. */
+   set in both regsets.  */
 #define EXECUTE_IF_AND_IN_REG_SET(REGSET1, REGSET2, MIN, REGNUM, CODE) \
   EXECUTE_IF_AND_IN_BITMAP (REGSET1, REGSET2, MIN, REGNUM, CODE)
 
@@ -275,7 +275,7 @@ extern struct obstack flow_obstack;
 #define ENTRY_BLOCK (-1)
 #define EXIT_BLOCK (-2)
 
-/* Special block number not valid for any block. */
+/* Special block number not valid for any block.  */
 #define INVALID_BLOCK (-3)
 
 /* Similarly, block pointers for the edge list.  */
@@ -288,9 +288,9 @@ extern varray_type basic_block_for_insn;
 #define BLOCK_NUM(INSN)              (BLOCK_FOR_INSN (INSN)->index + 0)
 
 extern void compute_bb_for_insn                PARAMS ((int));
+extern void free_bb_for_insn           PARAMS ((void));
 extern void update_bb_for_insn         PARAMS ((basic_block));
 extern void set_block_for_insn         PARAMS ((rtx, basic_block));
-extern void set_block_for_new_insns    PARAMS ((rtx, basic_block));
 
 extern void free_basic_block_vars      PARAMS ((int));
 
@@ -302,8 +302,6 @@ extern void remove_fake_edges               PARAMS ((void));
 extern void add_noreturn_fake_exit_edges       PARAMS ((void));
 extern void connect_infinite_loops_to_exit     PARAMS ((void));
 extern int flow_call_edges_add         PARAMS ((sbitmap));
-extern rtx flow_delete_insn            PARAMS ((rtx));
-extern void flow_delete_insn_chain     PARAMS ((rtx, rtx));
 extern edge cached_make_edge           PARAMS ((sbitmap *, basic_block,
                                                 basic_block, int));
 extern edge make_edge                  PARAMS ((basic_block,
@@ -576,6 +574,7 @@ enum update_life_extent
                                           inside call_placeholders..  */
 #define CLEANUP_PRE_LOOP       16      /* Take care to preserve syntactic loop
                                           notes.  */
+#define CLEANUP_UPDATE_LIFE    32      /* Keep life information up to date.  */
 /* Flags for loop discovery.  */
 
 #define LOOP_TREE              1       /* Build loop hierarchy tree.  */
@@ -631,6 +630,7 @@ extern void debug_regset            PARAMS ((regset));
 extern void allocate_reg_life_data      PARAMS ((void));
 extern void allocate_bb_life_data      PARAMS ((void));
 extern void expunge_block              PARAMS ((basic_block));
+extern basic_block alloc_block         PARAMS ((void));
 extern void find_unreachable_blocks    PARAMS ((void));
 extern void delete_noop_moves          PARAMS ((rtx));
 extern basic_block redirect_edge_and_branch_force PARAMS ((edge, basic_block));
@@ -638,18 +638,27 @@ extern basic_block force_nonfallthru      PARAMS ((edge));
 extern bool redirect_edge_and_branch   PARAMS ((edge, basic_block));
 extern rtx block_label                 PARAMS ((basic_block));
 extern bool forwarder_block_p          PARAMS ((basic_block));
-extern bool purge_all_dead_edges       PARAMS ((void));
+extern bool purge_all_dead_edges       PARAMS ((int));
 extern bool purge_dead_edges           PARAMS ((basic_block));
 extern void find_sub_basic_blocks      PARAMS ((basic_block));
+extern void find_many_sub_basic_blocks PARAMS ((sbitmap));
 extern bool can_fallthru               PARAMS ((basic_block, basic_block));
 extern void flow_nodes_print           PARAMS ((const char *, const sbitmap,
                                                 FILE *));
 extern void flow_edge_list_print       PARAMS ((const char *, const edge *,
                                                 int, FILE *));
+extern void alloc_aux_for_block                PARAMS ((basic_block, int));
+extern void alloc_aux_for_blocks       PARAMS ((int));
+extern void clear_aux_for_blocks       PARAMS ((void));
+extern void free_aux_for_blocks                PARAMS ((void));
+extern void alloc_aux_for_edge         PARAMS ((edge, int));
+extern void alloc_aux_for_edges                PARAMS ((int));
+extern void clear_aux_for_edges                PARAMS ((void));
+extern void free_aux_for_edges         PARAMS ((void));
 
 /* This function is always defined so it can be called from the
    debugger, and it is declared extern so we don't get warnings about
-   it being unused. */
+   it being unused.  */
 extern void verify_flow_info           PARAMS ((void));
 extern int flow_loop_outside_edge_p    PARAMS ((const struct loop *, edge));