register-variables.c: New.

	gcc/testsuite/
	* gcc.target/arm/register-variables.c: New.

From-SVN: r123071

gcc/testsuite/ChangeLog

+2007-03-19  Mark Shinwell  <shinwell@codesourcery.com>
+
+	* gcc.target/arm/register-variables.c: New.
+
 2007-03-19  Jeff Law  <law@redhat.com>
 
 	* PR tree-optimization/30984

gcc/testsuite/gcc.target/arm/register-variables.c

+/* { dg-do run } */
+/* { dg-options "-O" } */
+
+#include <stdlib.h>
+
+void __attribute__((noinline)) 
+bar(int a, int b)
+{
+  if (a != 43 || b != 42)
+    abort();
+}
+
+int main(void)
+{
+    register int r0 asm("r0") = 42;
+    register int r1 asm("r1") = 43;
+    asm volatile("": "+r" (r0), "+r" (r1));
+    bar(r1, r0);
+    return 0;
+}
+