Add 2 testcases for PR rtl-optimization/47502.

From-SVN: r171205

gcc/testsuite/ChangeLog

+2011-03-20  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR rtl-optimization/47502
+	* gcc.target/i386/pr47502-1.c: New.
+	* gcc.target/i386/pr47502-2.c: Likewise.
+
 2011-03-20  Jakub Jelinek  <jakub@redhat.com>
 
 	PR rtl-optimization/48156

gcc/testsuite/gcc.target/i386/pr47502-1.c

+/* { dg-do compile } */
+/* { dg-options "-O" } */
+
+void
+foo (const void *xxxxx, void *yyyyy, long y)
+{
+  asm volatile ("" :: "c" ((xxxxx)), "d" ((yyyyy)), "S" (y));
+}

gcc/testsuite/gcc.target/i386/pr47502-2.c

+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+int
+foo (int how, const void *set, void *oset)
+{
+  int resultvar;
+  asm volatile (""
+                : "=a" (resultvar)
+                : "0" (14) , "b" (how), "c" ((set)), "d" ((oset)), "S" (65 / 8) : "memory", "cc");
+  return resultvar;
+}