[vect] Clean up orig_loop_vinfo from vect_analyze_loop

gcc/ChangeLog:
2019-11-04  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* tree-vect-loop.c (vect_analyze_loop): Remove orig_loop_vinfo
	parameter.
	* tree-vectorizer.h (vect_analyze_loop): Update declaration.
	* tree-vectorizer.c (try_vectorize_loop_1): Update calls to
	vect_analyze_loop.

From-SVN: r277785

gcc/ChangeLog

+2019-11-04  Andre Vieira  <andre.simoesdiasvieira@arm.com>
+
+	* tree-vect-loop.c (vect_analyze_loop): Remove orig_loop_vinfo
+	parameter.
+	* tree-vectorizer.h (vect_analyze_loop): Update declaration.
+	* tree-vectorizer.c (try_vectorize_loop_1): Update calls to
+	vect_analyze_loop.
+
 2019-11-04  Joel Hutton  <Joel.Hutton@arm.com>
 
 	* expr.c (store_constructor): Modify to handle single element vectors.

gcc/tree-vect-loop.c

@@ -2350,11 +2350,9 @@ again:
 
    Apply a set of analyses on LOOP, and create a loop_vec_info struct
    for it.  The different analyses will record information in the
-   loop_vec_info struct.  If ORIG_LOOP_VINFO is not NULL epilogue must
-   be vectorized.  */
+   loop_vec_info struct.  */
 opt_loop_vec_info
-vect_analyze_loop (class loop *loop, loop_vec_info orig_loop_vinfo,
-		   vec_info_shared *shared)
+vect_analyze_loop (class loop *loop, vec_info_shared *shared)
 {
   auto_vector_sizes vector_sizes;
 
@@ -2406,9 +2404,7 @@ vect_analyze_loop (class loop *loop, loop_vec_info orig_loop_vinfo,
 
       bool fatal = false;
 
-      if (orig_loop_vinfo)
-	LOOP_VINFO_ORIG_LOOP_INFO (loop_vinfo) = orig_loop_vinfo;
-      else if (vect_epilogues && first_loop_vinfo)
+      if (vect_epilogues && first_loop_vinfo)
 	LOOP_VINFO_ORIG_LOOP_INFO (loop_vinfo) = first_loop_vinfo;
 
       opt_result res = vect_analyze_loop_2 (loop_vinfo, fatal, &n_stmts);

gcc/tree-vectorizer.c

@@ -865,8 +865,7 @@ set_uid_loop_bbs (loop_vec_info loop_vinfo, gimple *loop_vectorized_call)
 
 static unsigned
 try_vectorize_loop_1 (hash_table<simduid_to_vf> *&simduid_to_vf_htab,
-		      unsigned *num_vectorized_loops,
-		      loop_p loop, loop_vec_info orig_loop_vinfo,
+		      unsigned *num_vectorized_loops, loop_p loop,
 		      gimple *loop_vectorized_call,
 		      gimple *loop_dist_alias_call)
 {
@@ -890,7 +889,7 @@ try_vectorize_loop_1 (hash_table<simduid_to_vf> *&simduid_to_vf_htab,
   else
     {
       /* Try to analyze the loop, retaining an opt_problem if dump_enabled_p.  */
-      loop_vinfo = vect_analyze_loop (loop, orig_loop_vinfo, &shared);
+      loop_vinfo = vect_analyze_loop (loop, &shared);
       loop->aux = loop_vinfo;
     }
 
@@ -1025,7 +1024,7 @@ try_vectorize_loop_1 (hash_table<simduid_to_vf> *&simduid_to_vf_htab,
        */
       unsigned dont_count = *num_vectorized_loops;
       ret |= try_vectorize_loop_1 (simduid_to_vf_htab, &dont_count,
-				   new_loop, loop_vinfo, NULL, NULL);
+				   new_loop, NULL, NULL);
     }
 
   return ret;
@@ -1042,8 +1041,7 @@ try_vectorize_loop (hash_table<simduid_to_vf> *&simduid_to_vf_htab,
 	|| loop->force_vectorize))
     return 0;
 
-  return try_vectorize_loop_1 (simduid_to_vf_htab, num_vectorized_loops,
-			       loop, NULL,
+  return try_vectorize_loop_1 (simduid_to_vf_htab, num_vectorized_loops, loop,
 			       vect_loop_vectorized_call (loop),
 			       vect_loop_dist_alias_call (loop));
 }

gcc/tree-vectorizer.h

@@ -1721,9 +1721,7 @@ extern bool check_reduction_path (dump_user_location_t, loop_p, gphi *, tree,
 				  enum tree_code);
 extern bool needs_fold_left_reduction_p (tree, tree_code);
 /* Drive for loop analysis stage.  */
-extern opt_loop_vec_info vect_analyze_loop (class loop *,
-					    loop_vec_info,
-					    vec_info_shared *);
+extern opt_loop_vec_info vect_analyze_loop (class loop *, vec_info_shared *);
 extern tree vect_build_loop_niters (loop_vec_info, bool * = NULL);
 extern void vect_gen_vector_loop_niters (loop_vec_info, tree, tree *,
 					 tree *, bool);