re PR c++/46304 (g++ crashes with ICE in bitmap_first_set_bit, at bitmap.c:770)

	PR c++/46304
	* pt.c (tsubst_copy): Handle COMPLEX_CST.

From-SVN: r166350

gcc/cp/ChangeLog

+2010-11-05  Jason Merrill  <jason@redhat.com>
+
+	PR c++/46304
+	* pt.c (tsubst_copy): Handle COMPLEX_CST.
+
 2010-11-04  Nicola Pero  <nicola.pero@meta-innovation.com>
 
 	Fixed using the Objective-C 2.0 dot-syntax with class names.	

gcc/cp/pt.c

@@ -11658,6 +11658,7 @@ tsubst_copy (tree t, tree args, tsubst_flags_t complain, tree in_decl)
     case INTEGER_CST:
     case REAL_CST:
     case STRING_CST:
+    case COMPLEX_CST:
       {
 	/* Instantiate any typedefs in the type.  */
 	tree type = tsubst (TREE_TYPE (t), args, complain, in_decl);

gcc/testsuite/ChangeLog

+2010-11-05  Jason Merrill  <jason@redhat.com>
+
+	PR c++/46304
+	* g++.dg/ext/complex6.C: New.
+
 2010-11-04  Bud Davis	<jimmied@smu.edu>
 
 	* gfortran.dg/intrinsic_numeric_arg.f: Add test to check 

gcc/testsuite/g++.dg/ext/complex6.C

+// PR c++/46304
+// { dg-options "" }
+
+template<class T>
+void f()
+{
+  __complex double d =  1.0 + 2.0i;
+}
+
+template void f<int>();