ctz.c: Don't specify -march, require thumb2.

	* gcc.target/arm/ctz.c: Don't specify -march, require thumb2.
	* gcc.target/arm/pr42879.c: Likewise.
	* gcc.target/arm/pr45701-3.c: Likewise.

From-SVN: r175310

gcc/testsuite/ChangeLog

 2011-06-22  Janis Johnson  <janisjo@codesourcery.com>
 
+	* gcc.target/arm/ctz.c: Don't specify -march, require thumb2.
+	* gcc.target/arm/pr42879.c: Likewise.
+	* gcc.target/arm/pr45701-3.c: Likewise.
+
 	* gcc.target/arm/20031108-1.c: Require thumb1 or thumb2.
 	* gcc.target/arm/pr40482.c: Likewise.
 	* gcc.target/arm/stack-corruption.c: Likewise.

gcc/testsuite/gcc.target/arm/ctz.c

 /* { dg-do compile } */
-/* { dg-require-effective-target arm32 } */
-/* { dg-options "-O2 -march=armv6t2" } */
+/* { dg-require-effective-target arm_thumb2_ok } */
+/* { dg-options "-O2" } */
 
 unsigned int functest(unsigned int x)
 {

gcc/testsuite/gcc.target/arm/pr42879.c

-/* { dg-options "-march=armv7-a -mthumb -Os" }  */
+/* { dg-require-effective-target arm_thumb2_ok } */
+/* { dg-options "-mthumb -Os" }  */
 /* { dg-final { scan-assembler "lsls" } } */
 
 struct A

gcc/testsuite/gcc.target/arm/pr45701-3.c

 /* { dg-do compile } */
-/* { dg-options "-march=armv7-a -mthumb -Os" }  */
+/* { dg-require-effective-target arm_thumb2_ok } */
+/* { dg-options "-mthumb -Os" }  */
 /* { dg-final { scan-assembler "push\t.*r8" } } */
 /* { dg-final { scan-assembler-not "push\t*r3" } } */