diff options
Diffstat (limited to 'gcc/tree-cfgcleanup.c')
| -rw-r--r-- | gcc/tree-cfgcleanup.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/gcc/tree-cfgcleanup.c b/gcc/tree-cfgcleanup.c index 76667a6..dc0380a 100644 --- a/gcc/tree-cfgcleanup.c +++ b/gcc/tree-cfgcleanup.c @@ -158,19 +158,24 @@ cleanup_control_flow (void) { bsi = bsi_last (bb); + /* If the last statement of the block could throw and now cannot, + we need to prune cfg. */ + tree_purge_dead_eh_edges (bb); + if (bsi_end_p (bsi)) continue; stmt = bsi_stmt (bsi); + if (TREE_CODE (stmt) == COND_EXPR || TREE_CODE (stmt) == SWITCH_EXPR) retval |= cleanup_control_expr_graph (bb, bsi); - /* If we had a computed goto which has a compile-time determinable destination, then we can eliminate the goto. */ - if (TREE_CODE (stmt) == GOTO_EXPR - && TREE_CODE (GOTO_DESTINATION (stmt)) == ADDR_EXPR - && TREE_CODE (TREE_OPERAND (GOTO_DESTINATION (stmt), 0)) == LABEL_DECL) + else if (TREE_CODE (stmt) == GOTO_EXPR + && TREE_CODE (GOTO_DESTINATION (stmt)) == ADDR_EXPR + && (TREE_CODE (TREE_OPERAND (GOTO_DESTINATION (stmt), 0)) + == LABEL_DECL)) { edge e; tree label; @@ -214,7 +219,7 @@ cleanup_control_flow (void) /* Check for indirect calls that have been turned into noreturn calls. */ - if (noreturn_call_p (stmt) && remove_fallthru_edge (bb->succs)) + else if (noreturn_call_p (stmt) && remove_fallthru_edge (bb->succs)) { free_dominance_info (CDI_DOMINATORS); retval = true; |