[gcc r12-941] arm: Fix build failure by adding includes

[gcc r12-941] arm: Fix build failure by adding includes

[Kewen Lin]

https://gcc.gnu.org/g:928e4ff1aea45165efbdc8ba6e409b191c2dde6c

commit r12-941-g928e4ff1aea45165efbdc8ba6e409b191c2dde6c
Author: Kewen Lin <linkw@linux.ibm.com>
Date:   Thu May 20 05:16:19 2021 -0500

    arm: Fix build failure by adding includes
    
    Commit r12-939 missed to add the required include files for
    the newly used type loop_vec_info.  This patch is to add
    the include file "tree-vectorizer.h" which defines
    loop_vec_info and its required include file "cfgloop.h".
    
    gcc/ChangeLog:
    
            * config/arm/arm.c: Include head files tree-vectorizer.h and
            cfgloop.h.

Diff:
---
 gcc/config/arm/arm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index caf4e56b9fe..9377aaef342 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -32,6 +32,7 @@
 #include "tree.h"
 #include "memmodel.h"
 #include "cfghooks.h"
+#include "cfgloop.h"
 #include "df.h"
 #include "tm_p.h"
 #include "stringpool.h"
@@ -69,6 +70,7 @@
 #include "gimplify.h"
 #include "gimple.h"
 #include "selftest.h"
+#include "tree-vectorizer.h"
 
 /* This file should be included last.  */
 #include "target-def.h"