Lower the select instruction when the operands are of vector type.

crosstest/test_select.h

Index: crosstest/test_select.h
diff --git a/crosstest/test_select.h b/crosstest/test_select.h
new file mode 100644
index 0000000000000000000000000000000000000000..6e890a06b2d45e5a7293c417c79db43771dc9ea1
--- /dev/null
+++ b/crosstest/test_select.h
@@ -0,0 +1,26 @@
+//===- subzero/crosstest/test_select.h - Test prototypes -----*- C++ -*----===//
+//
+//                        The Subzero Code Generator
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the function prototypes for cross testing the select
+// bitcode instruction.
+//
+//===----------------------------------------------------------------------===//
+
+#include "vectors.h"
+
+v4f32 select(v4si32 cond, v4f32 val1, v4f32 val2);
+v4si32 select(v4si32 cond, v4si32 val1, v4si32 val2);
+v4ui32 select(v4si32 cond, v4ui32 val1, v4ui32 val2);
+v8si16 select(v8si16 cond, v8si16 val1, v8si16 val2);
+v8ui16 select(v8si16 cond, v8ui16 val1, v8ui16 val2);
+v16si8 select(v16si8 cond, v16si8 val1, v16si8 val2);
+v16ui8 select(v16si8 cond, v16ui8 val1, v16ui8 val2);
+v4si32 select_i1(v4si32 cond, v4si32 val1, v4si32 val2);
+v8si16 select_i1(v8si16 cond, v8si16 val1, v8si16 val2);
+v16si8 select_i1(v16si8 cond, v16si8 val1, v16si8 val2);