diff options
Diffstat (limited to 'gcc/cfgrtl.c')
| -rw-r--r-- | gcc/cfgrtl.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/cfgrtl.c b/gcc/cfgrtl.c index f14e44e..c1bbb1a 100644 --- a/gcc/cfgrtl.c +++ b/gcc/cfgrtl.c @@ -1165,7 +1165,7 @@ force_nonfallthru (edge e) /* Redirect edge even at the expense of creating new jump insn or basic block. Return new basic block if created, NULL otherwise. - Abort if conversion is impossible. */ + Conversion must be possible. */ static basic_block rtl_redirect_edge_and_branch_force (edge e, basic_block target) @@ -1277,7 +1277,7 @@ rtl_move_block_after (basic_block bb ATTRIBUTE_UNUSED, } /* Split a (typically critical) edge. Return the new block. - Abort on abnormal edges. + The edge must not be abnormal. ??? The code generally expects to be called on critical edges. The case of a block ending in an unconditional jump to a @@ -2695,7 +2695,8 @@ cfg_layout_can_merge_blocks_p (basic_block a, basic_block b) ? simplejump_p (BB_END (a)) : onlyjump_p (BB_END (a))))); } -/* Merge block A and B, abort when it is not possible. */ +/* Merge block A and B. The blocks must be mergeable. */ + static void cfg_layout_merge_blocks (basic_block a, basic_block b) { |