When update_epilogue_loop_vinfo relates the shared loop DRs with
the epilogue stmts and infos it should not fiddle with how
pattern recognition applied move_dr.
Bootstrapped and tested on x86_64-unknown-linux-gnu.
* tree-vect-loop.cc (update_epilogue_loop_vinfo): A DRs
main stmt vinfo dr_aux should refer to a pattern stmt
which is how move_dr sets this up. We shouldn't undo this.
---
gcc/tree-vect-loop.cc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gcc/tree-vect-loop.cc b/gcc/tree-vect-loop.cc
index df89edac036..ac901e52743 100644
--- a/gcc/tree-vect-loop.cc
+++ b/gcc/tree-vect-loop.cc
@@ -12290,7 +12290,7 @@ update_epilogue_loop_vinfo (class loop *epilogue, tree
advance)
&find_in_mapping, &mapping);
}
DR_STMT (dr) = STMT_VINFO_STMT (stmt_vinfo);
- stmt_vinfo->dr_aux.stmt = stmt_vinfo;
+ stmt_vinfo->dr_aux.stmt = vstmt_vinfo;
}
epilogue_vinfo->shared->datarefs_copy.release ();
--
2.43.0
