Add a testcase for PR debug/43508.

2010-05-04  H.J. Lu  <hongjiu.lu@intel.com>

	PR debug/43508
	* gcc.target/i386/pr43508.c: New.

From-SVN: r159027

gcc/testsuite/ChangeLog

+2010-05-04  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR debug/43508
+	* gcc.target/i386/pr43508.c: New.
+
 2010-05-04  Richard Guenther  <rguenther@suse.de>
 
 	PR tree-optimization/43879

gcc/testsuite/gcc.target/i386/pr43508.c

+/* { dg-do compile } */
+/* { dg-options "-g -O -msse3" } */
+
+typedef float v4sf __attribute__ ((__vector_size__ (16)));
+typedef int v4si __attribute__ ((__vector_size__ (16)));
+
+v4sf bar(int);
+
+v4sf foo(v4si vi)
+{
+  int x = __builtin_ia32_vec_ext_v4si (vi, 0);
+  return bar(x);
+}