The following fixes a stupid bug with -ftree-loop-if-convert-stores.
We were treating all but the same base as candidate to determine
whether a ref was accessed unconditionally ...
Bootstrap & regtest running on x86_64-unknown-linux-gnu.
Richard.
2015-07-09 Richard Biener <rguent...@suse.de>
PR tree-optimization/66823
* tree-if-conv.c (memrefs_read_or_written_unconditionally): Fix
inverted predicate.
Index: gcc/tree-if-conv.c
===================================================================
--- gcc/tree-if-conv.c (revision 225610)
+++ gcc/tree-if-conv.c (working copy)
@@ -642,7 +642,7 @@ memrefs_read_or_written_unconditionally
|| TREE_CODE (ref_base_b) == REALPART_EXPR)
ref_base_b = TREE_OPERAND (ref_base_b, 0);
- if (!operand_equal_p (ref_base_a, ref_base_b, 0))
+ if (operand_equal_p (ref_base_a, ref_base_b, 0))
{
tree cb = bb_predicate (gimple_bb (DR_STMT (b)));
