diff options
Diffstat (limited to 'gcc/basic-block.h')
| -rw-r--r-- | gcc/basic-block.h | 38 |
1 files changed, 25 insertions, 13 deletions
diff --git a/gcc/basic-block.h b/gcc/basic-block.h index d9244d271fd..948f9f4526e 100644 --- a/gcc/basic-block.h +++ b/gcc/basic-block.h @@ -183,6 +183,7 @@ struct loops; /* Declared in tree-flow.h. */ struct edge_prediction; +struct rtl_bb_info; /* A basic block is a sequence of instructions with only entry and only one exit. If any one of the instructions are executed, they @@ -212,10 +213,6 @@ struct edge_prediction; /* Basic block information indexed by block number. */ struct basic_block_def GTY((chain_next ("%h.next_bb"), chain_prev ("%h.prev_bb"))) { - /* The first and last insns of the block. */ - rtx head_; - rtx end_; - /* Pointers to the first and last trees of the block. */ tree stmt_list; @@ -223,12 +220,6 @@ struct basic_block_def GTY((chain_next ("%h.next_bb"), chain_prev ("%h.prev_bb") VEC(edge,gc) *preds; VEC(edge,gc) *succs; - /* The registers that are live on entry to this block. */ - bitmap GTY ((skip (""))) global_live_at_start; - - /* The registers that are live on exit from this block. */ - bitmap GTY ((skip (""))) global_live_at_end; - /* Auxiliary info specific to a pass. */ PTR GTY ((skip (""))) aux; @@ -245,6 +236,10 @@ struct basic_block_def GTY((chain_next ("%h.next_bb"), chain_prev ("%h.prev_bb") /* The data used by basic block copying and reordering functions. */ struct reorder_block_def * rbi; + union basic_block_il_dependent { + struct rtl_bb_info * GTY ((tag ("1"))) rtl; + } GTY ((desc ("((%1.flags & BB_RTL) != 0)"))) il; + /* Chain of PHI nodes for this block. */ tree phi_nodes; @@ -267,6 +262,19 @@ struct basic_block_def GTY((chain_next ("%h.next_bb"), chain_prev ("%h.prev_bb") int flags; }; +struct rtl_bb_info GTY(()) +{ + /* The first and last insns of the block. */ + rtx head_; + rtx end_; + + /* The registers that are live on entry to this block. */ + bitmap GTY ((skip (""))) global_live_at_start; + + /* The registers that are live on exit from this block. */ + bitmap GTY ((skip (""))) global_live_at_end; +}; + typedef struct basic_block_def *basic_block; /* Structure to hold information about the blocks during reordering and @@ -325,7 +333,10 @@ enum BB_COLD_PARTITION = 128, /* Set on block that was duplicated. */ - BB_DUPLICATED = 256 + BB_DUPLICATED = 256, + + /* Set on blocks that are in RTL format. */ + BB_RTL = 1024 }; /* Dummy flag for convenience in the hot/cold partitioning code. */ @@ -455,8 +466,8 @@ extern bitmap_obstack reg_obstack; /* Stuff for recording basic block info. */ -#define BB_HEAD(B) (B)->head_ -#define BB_END(B) (B)->end_ +#define BB_HEAD(B) (B)->il.rtl->head_ +#define BB_END(B) (B)->il.rtl->end_ /* Special block numbers [markers] for entry and exit. */ #define ENTRY_BLOCK (-1) @@ -976,6 +987,7 @@ extern edge try_redirect_by_replacing_jump (edge, basic_block, bool); extern void break_superblocks (void); extern void check_bb_profile (basic_block, FILE *); extern void update_bb_profile_for_threading (basic_block, int, gcov_type, edge); +extern void init_rtl_bb_info (basic_block); extern void initialize_original_copy_tables (void); extern void free_original_copy_tables (void); |