armv7m-1.c: New test.

	gcc/testsuite/
	* g++.dg/other/armv7m-1.c: New test.

From-SVN: r189784

gcc/testsuite/ChangeLog

+2012-07-23  Paul Brook  <paul@codesourcery.com>
+
+	* g++.dg/other/armv7m-1.c: New test.
+
 2012-07-23  Julian Brown  <julian@codesourcery.com>
 
 	* gcc.c-torture/execute/20101011-1.c (__aeabi_idiv0): Define for

gcc/testsuite/g++.dg/other/armv7m-1.C

+/* { dg-do run { target arm*-*-* } } */
+/* Test Armv7m interrupt routines.  */
+#include <stdlib.h>
+
+#ifdef __ARM_ARCH_7M__
+void __attribute__((interrupt))
+foo(void)
+{
+  long long n;
+  long p;
+  asm volatile ("" : "=r" (p) : "0" (&n));
+  if (p & 4)
+    abort ();
+  return;
+}
+
+void __attribute__((interrupt))
+bar(void)
+{
+  throw 42;
+}
+
+int main()
+{
+  int a;
+  int before;
+  int after;
+  volatile register int sp asm("sp");
+
+  asm volatile ("mov %0, sp\n"
+		"blx %2\n"
+		"mov %1, sp\n"
+		: "=&r" (before), "=r" (after) : "r" (foo)
+		: "memory", "cc", "r0", "r1", "r2", "r3", "ip", "lr");
+  if (before != after)
+    abort();
+  asm volatile ("mov %0, sp\n"
+		"sub sp, sp, #4\n"
+		"blx %2\n"
+		"add sp, sp, #4\n"
+		"mov %1, sp\n"
+		: "=&r" (before), "=r" (after) : "r" (foo)
+		: "memory", "cc", "r0", "r1", "r2", "r3", "ip", "lr");
+  if (before != after)
+    abort();
+  before = sp;
+  try
+    {
+      bar();
+    }
+  catch (int i)
+    {
+      if (i != 42)
+	abort();
+    }
+  catch (...)
+    {
+      abort();
+    }
+  if (before != sp)
+    abort();
+  exit(0);
+}
+#else
+int main()
+{
+  exit (0);
+}
+#endif