re PR c++/18073 (mmintrin.h rejected by C++ frontend)

	PR c++/18073
	* typeck.c (build_reinterpret_cast_1): Allow cast from vector type.

	* g++.dg/other/mmintrin.C: New test.

From-SVN: r91929

gcc/cp/ChangeLog

+2004-12-09  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
+
+	PR c++/18073
+	* typeck.c (build_reinterpret_cast_1): Allow cast from vector type.
+
 2004-12-09  Nathan Sidwell  <nathan@codesourcery.com>
 
 	PR c++/16681

gcc/cp/typeck.c

@@ -4956,6 +4956,8 @@ build_reinterpret_cast_1 (tree type, tree expr, bool c_cast_p,
     }
   else if (TREE_CODE (type) == VECTOR_TYPE)
     return fold_if_not_in_template (convert_to_vector (type, expr));
+  else if (TREE_CODE (intype) == VECTOR_TYPE)
+    return fold_if_not_in_template (convert_to_integer (type, expr));
   else
     {
       if (valid_p)

gcc/testsuite/ChangeLog

+2004-12-09  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
+
+	PR c++/18073
+	* g++.dg/other/mmintrin.C: New test.
+
 2004-12-09  Nathan Sidwell  <nathan@codesourcery.com>
 
 	PR c++/16681

gcc/testsuite/g++.dg/other/mmintrin.C

+// { dg-do compile { target i?86-*-* x86_64-*-* } }
+// { dg-options "-msse" }
+
+#include <xmmintrin.h>