--- /dev/null
+uniform mat4 mvp;
+
+#pragma MSP stage(vertex)
+layout(location=0) in vec4 position;
+vec4 transform_position(vec4 p)
+{
+ return mvp*p;
+}
+void main()
+{
+ gl_Position = transform_position(position);
+}
+
+/* Expected output: vertex
+uniform mat4 mvp;
+layout(location=0) in vec4 position;
+void main()
+{
+ gl_Position = mvp*position;
+}
+*/