This properly marks the loop as for a runtime alias peel rather
than (pointlessly) going through DR_MISALIGNMENT.
Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed.
2021-09-20 Richard Biener <rguent...@suse.de>
* tree-vect-data-refs.c (vect_enhance_data_refs_alignment):
Store -1 for runtime alias peeling iterations.
---
gcc/tree-vect-data-refs.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c
index 967d43726db..1a7abe3ff29 100644
--- a/gcc/tree-vect-data-refs.c
+++ b/gcc/tree-vect-data-refs.c
@@ -2268,8 +2268,7 @@ vect_enhance_data_refs_alignment (loop_vec_info
loop_vinfo)
if (npeel)
LOOP_VINFO_PEELING_FOR_ALIGNMENT (loop_vinfo) = npeel;
else
- LOOP_VINFO_PEELING_FOR_ALIGNMENT (loop_vinfo)
- = DR_MISALIGNMENT (dr0_info);
+ LOOP_VINFO_PEELING_FOR_ALIGNMENT (loop_vinfo) = -1;
SET_DR_MISALIGNMENT (dr0_info, 0);
if (dump_enabled_p ())
{
--
2.31.1
