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| author | Jan Hubicka <jh@suse.cz> | 2001-06-28 20:14:05 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2001-06-28 18:14:05 +0000 |
| commit | 7a442791bbd35236ae2c45e383db88d704f8f41c (patch) | |
| tree | 411b8f5eb989eadf53babde84c57d46a4759fd2e /gcc/basic-block.h | |
| parent | d72c3ec3f65c7e75b9d7149de4eb02701992cdb9 (diff) | |
| download | gcc-7a442791bbd35236ae2c45e383db88d704f8f41c.zip gcc-7a442791bbd35236ae2c45e383db88d704f8f41c.tar.gz gcc-7a442791bbd35236ae2c45e383db88d704f8f41c.tar.bz2 | |
flow.c (try_merge_block): Rename to try_optimize_cfg; do basic simplifications on the CFG.
* flow.c (try_merge_block): Rename to try_optimize_cfg;
do basic simplifications on the CFG.
(is_forwarder_block_p, can_fallthru, try_redirect_by_replacing_jump,
try_simplify_condjump): New.
(redirect_edge_and_branch): Try replace jump insn.
(flow_delete_insn): Handle deleting of ADDR_VEC insns.
* basic-block.h (FALLTHRU_EDGE, BRANCH_EDGE): New macros.
From-SVN: r43642
Diffstat (limited to 'gcc/basic-block.h')
| -rw-r--r-- | gcc/basic-block.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/basic-block.h b/gcc/basic-block.h index 515d222..8e4aa41 100644 --- a/gcc/basic-block.h +++ b/gcc/basic-block.h @@ -488,6 +488,14 @@ struct edge_list /* Number of edges in the compressed edge list. */ #define NUM_EDGES(el) ((el)->num_edges) +/* BB is assumed to contain conditional jump. Return the fallthru edge. */ +#define FALLTHRU_EDGE(bb) ((bb)->succ->flags & EDGE_FALLTHRU \ + ? (bb)->succ : (bb)->succ->succ_next) + +/* BB is assumed to contain conditional jump. Return the branch edge. */ +#define BRANCH_EDGE(bb) ((bb)->succ->flags & EDGE_FALLTHRU \ + ? (bb)->succ->succ_next : (bb)->succ) + struct edge_list * create_edge_list PARAMS ((void)); void free_edge_list PARAMS ((struct edge_list *)); void print_edge_list PARAMS ((FILE *, struct edge_list *)); |