diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/tree-ssa-dom.c | 3 |
2 files changed, 9 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 0e032a8..3a59fe7 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2012-02-29 Bill Schmidt <wschmidt@linux.vnet.ibm.com> + + PR tree-optimization/52424 + * tree-ssa-dom.c (dom_opt_leave_block): Push a marker before + calling dom_thread_across_edge. + 2012-02-29 Georg-Johann Lay <avr@gjlay.de> * config/avr/avr.c: Move definition of TARGET macros to end of file. diff --git a/gcc/tree-ssa-dom.c b/gcc/tree-ssa-dom.c index a9a658f..4ea9644 100644 --- a/gcc/tree-ssa-dom.c +++ b/gcc/tree-ssa-dom.c @@ -1779,6 +1779,9 @@ dom_opt_leave_block (struct dom_walk_data *walk_data, basic_block bb) && (single_succ_edge (bb)->flags & EDGE_ABNORMAL) == 0 && potentially_threadable_block (single_succ (bb))) { + /* Push a marker on the stack, which thread_across_edge expects + and will remove. */ + VEC_safe_push (tree, heap, const_and_copies_stack, NULL_TREE); dom_thread_across_edge (walk_data, single_succ_edge (bb)); } else if ((last = last_stmt (bb)) |