[testsuite] skip ARM tests if no THUMB support

[Janis Johnson]

Fix three ARM tests so they are skipped for multilibs that don't support
THUMB.  OK for trunk and 4.6?

Janis

2011-06-14  Janis Johnson  <jani...@codesourcery.com>

        * gcc.target/arm/pr45701-1.c: Require thumb support.
        * gcc.target/arm/pr45701-2.c: Likewise.
        * gcc.target/arm/thumb-branch1.c: Likewise.

Index: gcc.target/arm/pr45701-1.c
===================================================================
--- gcc.target/arm/pr45701-1.c  (revision 174920)
+++ gcc.target/arm/pr45701-1.c  (working copy)
@@ -1,4 +1,5 @@
 /* { dg-do compile } */
+/* { dg-skip-if "" { ! { arm_thumb1_ok || arm_thumb2_ok } } } */
 /* { dg-options "-march=armv7-a -mthumb -Os" }  */
 /* { dg-final { scan-assembler "push\t\{r3" } } */
 /* { dg-final { scan-assembler-not "r8" } } */
Index: gcc.target/arm/pr45701-2.c
===================================================================
--- gcc.target/arm/pr45701-2.c  (revision 174920)
+++ gcc.target/arm/pr45701-2.c  (working copy)
@@ -1,4 +1,5 @@
 /* { dg-do compile } */
+/* { dg-skip-if "" { ! { arm_thumb1_ok || arm_thumb2_ok } } } */
 /* { dg-options "-march=armv7-a -mthumb -Os" }  */
 /* { dg-final { scan-assembler "push\t\{r3" } } */
 /* { dg-final { scan-assembler-not "r8" } } */
Index: gcc.target/arm/thumb-branch1.c
===================================================================
--- gcc.target/arm/thumb-branch1.c      (revision 174920)
+++ gcc.target/arm/thumb-branch1.c      (working copy)
@@ -1,4 +1,5 @@
 /* { dg-do compile } */
+/* { dg-skip-if "" { ! { arm_thumb1_ok || arm_thumb2_ok } } } */
 /* { dg-options "-Os -mthumb -march=armv5te" } */
 
 int returnbool(int a, int b)