Add a test for PR target/63527

	PR target/63527
	* gcc.target/i386/pr63527.c: New test.

From-SVN: r218061

gcc/testsuite/ChangeLog

+2014-11-25  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR target/63527
+	* gcc.target/i386/pr63527.c: New test.
+
 2014-11-25  Martin Liska  <mliska@suse.cz>
 
 	PR bootstrap/64050

gcc/testsuite/gcc.target/i386/pr63527.c

+/* PR rtl-optimization/pr63527 */
+/* { dg-do compile { target { ia32 && fpic } } } */
+/* { dg-options "-O2 -fPIC" } */
+
+struct cache_file
+{
+  char magic[sizeof "ld.so-1.7.0" - 1];
+  unsigned int nlibs;
+};
+typedef unsigned int size_t;
+size_t cachesize __attribute__ ((visibility ("hidden")));
+struct cache_file *cache __attribute__ ((visibility ("hidden")));
+extern int __munmap (void *__addr, size_t __len);
+void
+_dl_unload_cache (void)
+{
+  if (cache != ((void *)0) && cache != (struct cache_file *) -1)
+    {
+      __munmap (cache, cachesize);
+      cache = ((void *)0) ;
+    }
+}
+
+/* We shouldn't load EBX again.  */
+/* { dg-final { scan-assembler-not "movl\[ \t\]%\[^,\]+, %ebx" } } */