diff options
Diffstat (limited to 'gcc/tree-vectorizer.c')
| -rw-r--r-- | gcc/tree-vectorizer.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/tree-vectorizer.c b/gcc/tree-vectorizer.c index 4bdb552..1cce052 100644 --- a/gcc/tree-vectorizer.c +++ b/gcc/tree-vectorizer.c @@ -179,6 +179,9 @@ unsigned int vect_loops_num; /* Loop location. */ static LOC vect_loop_location; + +/* Bitmap of virtual variables to be renamed. */ +bitmap vect_vnames_to_rename; /************************************************************************* Simple Loop Peeling Utilities @@ -511,6 +514,7 @@ slpeel_update_phi_nodes_for_guard1 (edge guard_edge, struct loop *loop, basic_block orig_bb = loop->header; edge new_exit_e; tree current_new_name; + tree name; /* Create new bb between loop and new_merge_bb. */ *new_exit_bb = split_edge (loop->single_exit); @@ -522,6 +526,15 @@ slpeel_update_phi_nodes_for_guard1 (edge guard_edge, struct loop *loop, orig_phi && update_phi; orig_phi = PHI_CHAIN (orig_phi), update_phi = PHI_CHAIN (update_phi)) { + /* Virtual phi; Mark it for renaming. We actually want to call + mar_sym_for_renaming, but since all ssa renaming datastructures + are going to be freed before we get to call ssa_upate, we just + record this name for now in a bitmap, and will mark it for + renaming later. */ + name = PHI_RESULT (orig_phi); + if (!is_gimple_reg (SSA_NAME_VAR (name))) + bitmap_set_bit (vect_vnames_to_rename, SSA_NAME_VERSION (name)); + /** 1. Handle new-merge-point phis **/ /* 1.1. Generate new phi node in NEW_MERGE_BB: */ @@ -2010,6 +2023,10 @@ vectorize_loops (struct loops *loops) /* Fix the verbosity level if not defined explicitly by the user. */ vect_set_dump_settings (); + /* Allocate the bitmap that records which virtual variables that + need to be renamed. */ + vect_vnames_to_rename = BITMAP_ALLOC (NULL); + /* ----------- Analyze loops. ----------- */ /* If some loop was duplicated, it gets bigger number @@ -2041,6 +2058,8 @@ vectorize_loops (struct loops *loops) /* ----------- Finalize. ----------- */ + BITMAP_FREE (vect_vnames_to_rename); + for (i = 1; i < vect_loops_num; i++) { struct loop *loop = loops->parray[i]; |