Similar to the vect_gen_niters_for_prolog_loop change I already noticed
on x86_64.
Built on ppc64-unknown-linux-gnu, applied.
Richard.
2015-07-06 Richard Biener <rguent...@suse.de>
PR tree-optimization/66767
* tree-vect-loop-manip.c (vect_create_cond_for_align_checks):
Make sure to build the alignment test on a SSA name without
final alignment info valid only if the alignment test
evaluates to true.
Index: gcc/tree-vect-loop-manip.c
===================================================================
--- gcc/tree-vect-loop-manip.c (revision 225449)
+++ gcc/tree-vect-loop-manip.c (working copy)
@@ -2143,7 +2143,7 @@ vect_create_cond_for_align_checks (loop_
bool negative = tree_int_cst_compare
(DR_STEP (STMT_VINFO_DATA_REF (stmt_vinfo)), size_zero_node) < 0;
tree offset = negative
- ? size_int (-TYPE_VECTOR_SUBPARTS (vectype) + 1) : NULL_TREE;
+ ? size_int (-TYPE_VECTOR_SUBPARTS (vectype) + 1) : size_zero_node;
/* create: addr_tmp = (int)(address_of_first_vector) */
addr_base =
