diff options
Diffstat (limited to 'gcc/tree-vectorizer.c')
| -rw-r--r-- | gcc/tree-vectorizer.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/gcc/tree-vectorizer.c b/gcc/tree-vectorizer.c index b6538a4..c0d7834 100644 --- a/gcc/tree-vectorizer.c +++ b/gcc/tree-vectorizer.c @@ -1467,7 +1467,7 @@ destroy_loop_vec_info (loop_vec_info loop_vinfo) set_stmt_info (ann, NULL); } - for (si = bsi_start (bb); !bsi_end_p (si); bsi_next (&si)) + for (si = bsi_start (bb); !bsi_end_p (si); ) { tree stmt = bsi_stmt (si); stmt_ann_t ann = stmt_ann (stmt); @@ -1475,10 +1475,28 @@ destroy_loop_vec_info (loop_vec_info loop_vinfo) if (stmt_info) { + /* Check if this is a "pattern stmt" (introduced by the + vectorizer during the pattern recognition pass). */ + bool remove_stmt_p = false; + tree orig_stmt = STMT_VINFO_RELATED_STMT (stmt_info); + if (orig_stmt) + { + stmt_vec_info orig_stmt_info = vinfo_for_stmt (orig_stmt); + if (orig_stmt_info + && STMT_VINFO_IN_PATTERN_P (orig_stmt_info)) + remove_stmt_p = true; + } + + /* Free stmt_vec_info. */ VEC_free (dr_p, heap, STMT_VINFO_SAME_ALIGN_REFS (stmt_info)); free (stmt_info); set_stmt_info ((tree_ann_t)ann, NULL); + + /* Remove dead "pattern stmts". */ + if (remove_stmt_p) + bsi_remove (&si, true); } + bsi_next (&si); } } |