re PR rtl-optimization/57131 (Wrong register assignment?)

	PR rtl-optimization/57131
	* gcc.c-torture/execute/pr57131.c: New test.

From-SVN: r198511

gcc/testsuite/ChangeLog

+2013-05-02  Jakub Jelinek  <jakub@redhat.com>
+
+	PR rtl-optimization/57131
+	* gcc.c-torture/execute/pr57131.c: New test.
+
 2013-05-01  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR c++/57132

gcc/testsuite/gcc.c-torture/execute/pr57131.c

+/* PR rtl-optimization/57131 */
+
+extern void abort (void);
+
+int
+main ()
+{
+  volatile int x1 = 0;
+  volatile long long x2 = 0;
+  volatile int x3 = 0;
+  volatile int x4 = 1;
+  volatile int x5 = 1;
+  volatile long long x6 = 1;
+  long long t = ((x1 * (x2 << x3)) / (x4 * x5)) + x6;
+
+  if (t != 1)
+    abort ();
+  return 0;
+}