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| author | Zdenek Dvorak <dvorakz@suse.cz> | 2005-03-11 10:30:50 +0100 |
|---|---|---|
| committer | Zdenek Dvorak <rakdver@gcc.gnu.org> | 2005-03-11 09:30:50 +0000 |
| commit | 81b29e2f3db5c47ee19413fd051db45501e5de53 (patch) | |
| tree | acdf3ea2807461372a2cf3c9bd5026654c547d90 /gcc/basic-block.h | |
| parent | c5cbcccf9019f6ed28209f903245cce9cfc73e40 (diff) | |
| download | gcc-81b29e2f3db5c47ee19413fd051db45501e5de53.zip gcc-81b29e2f3db5c47ee19413fd051db45501e5de53.tar.gz gcc-81b29e2f3db5c47ee19413fd051db45501e5de53.tar.bz2 | |
basic-block.h (single_succ_p, [...]): Improve comments.
* basic-block.h (single_succ_p, single_pred_p, single_succ_edge,
single_pred_edge, single_succ, single_pred): Improve comments.
From-SVN: r96293
Diffstat (limited to 'gcc/basic-block.h')
| -rw-r--r-- | gcc/basic-block.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/gcc/basic-block.h b/gcc/basic-block.h index 576784d..0821dc5 100644 --- a/gcc/basic-block.h +++ b/gcc/basic-block.h @@ -563,7 +563,8 @@ single_pred_p (basic_block bb) return EDGE_COUNT (bb->preds) == 1; } -/* Returns the single successor edge of basic block BB. */ +/* Returns the single successor edge of basic block BB. Aborts if + BB does not have exactly one successor. */ static inline edge single_succ_edge (basic_block bb) @@ -572,7 +573,8 @@ single_succ_edge (basic_block bb) return EDGE_SUCC (bb, 0); } -/* Returns the single predecessor edge of basic block BB. */ +/* Returns the single predecessor edge of basic block BB. Aborts + if BB does not have exactly one predecessor. */ static inline edge single_pred_edge (basic_block bb) @@ -581,7 +583,8 @@ single_pred_edge (basic_block bb) return EDGE_PRED (bb, 0); } -/* Returns the single successor block of basic block BB. */ +/* Returns the single successor block of basic block BB. Aborts + if BB does not have exactly one successor. */ static inline basic_block single_succ (basic_block bb) @@ -589,7 +592,8 @@ single_succ (basic_block bb) return single_succ_edge (bb)->dest; } -/* Returns the single predecessor block of basic block BB. */ +/* Returns the single predecessor block of basic block BB. Aborts + if BB does not have exactly one predecessor.*/ static inline basic_block single_pred (basic_block bb) |