Inside the vectorizer they are not necessary (stmt update will make
sure they are marked for renaming - sth I'm going to improve with
a follwup). Also BB vectorization doesn't need to update SSA form
after vectorizing each BB.
Bootstrapped and tested on x86_64-unknown-linux-gnu, applied.
Richard.
2012-08-22 Richard Guenther <rguent...@suse.de>
* tree-vectorizer.c (vectorize_loops): Do not call
mark_virtual_operands_for_renaming.
* tree-vect-slp.c (vect_slp_transform_bb): Likewise.
Do not update SSA form here.
Index: gcc/tree-vectorizer.c
===================================================================
*** gcc/tree-vectorizer.c (revision 190590)
--- gcc/tree-vectorizer.c (working copy)
*************** vectorize_loops (void)
*** 223,230 ****
/* ----------- Finalize. ----------- */
- mark_virtual_operands_for_renaming (cfun);
-
for (i = 1; i < vect_loops_num; i++)
{
loop_vec_info loop_vinfo;
--- 223,228 ----
Index: gcc/tree-vect-slp.c
===================================================================
*** gcc/tree-vect-slp.c (revision 190590)
--- gcc/tree-vect-slp.c (working copy)
*************** vect_slp_transform_bb (basic_block bb)
*** 3159,3170 ****
}
}
- mark_virtual_operands_for_renaming (cfun);
- /* The memory tags and pointers in vectorized statements need to
- have their SSA forms updated. FIXME, why can't this be delayed
- until all the loops have been transformed? */
- update_ssa (TODO_update_ssa);
-
if (vect_print_dump_info (REPORT_DETAILS))
fprintf (vect_dump, "BASIC BLOCK VECTORIZED\n");
--- 3159,3164 ----
