I've reconsidered my last change to dr_may_alias_p and decided
it was correct before. The following reverts that change.
Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed.
* tree-vect-data-refs.cc (vect_analyze_early_break_dependences):
Revert last change to dr_may_alias_p.
---
gcc/tree-vect-data-refs.cc | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/gcc/tree-vect-data-refs.cc b/gcc/tree-vect-data-refs.cc
index e16796323b3..2170d17e839 100644
--- a/gcc/tree-vect-data-refs.cc
+++ b/gcc/tree-vect-data-refs.cc
@@ -772,11 +772,7 @@ vect_analyze_early_break_dependences (loop_vec_info
loop_vinfo)
the store. */
for (auto dr_read : bases)
- /* Note we're not passing the DRs in stmt order here
- since the DR dependence checking routine does not
- envision we're moving stores down. The read-write
- order tricks it to avoid applying TBAA. */
- if (dr_may_alias_p (dr_read, dr_ref, loop_nest))
+ if (dr_may_alias_p (dr_ref, dr_read, loop_nest))
{
if (dump_enabled_p ())
dump_printf_loc (MSG_MISSED_OPTIMIZATION,
--
2.35.3
