scons: Add new source files.
diff --git a/src/glsl/SConscript b/src/glsl/SConscript
index 9075927..96a226d 100644
--- a/src/glsl/SConscript
+++ b/src/glsl/SConscript
@@ -52,8 +52,10 @@
     'ir_import_prototypes.cpp',
     'ir_mat_op_to_vec.cpp',
     'ir_mod_to_fract.cpp',
+    'ir_noop_swizzle.cpp',
     'ir_print_visitor.cpp',
     'ir_reader.cpp',
+    'ir_rvalue_visitor.cpp',
     'ir_set_program_inouts.cpp',
     'ir_structure_splitting.cpp',
     'ir_sub_to_add_neg.cpp',