vvp: repeat: Implement partial vector receive

The repeat functor can receive a partial vector. Make sure this is handled.
Since the expectation is that will only happen if the input wire is driven
by a single partial selection the default recv_vec4_pv_() can be used which
replaces the missing bits by `z`.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>

vvp/concat.cc

@@ -234,6 +234,13 @@ void vvp_fun_repeat::recv_vec4(vvp_net_ptr_t port, const vvp_vector4_t&bit,
       port.ptr()->send_vec4(val, 0);
 }
 
+void vvp_fun_repeat::recv_vec4_pv(vvp_net_ptr_t port, const vvp_vector4_t &bit,
+			          unsigned base, unsigned vwid,
+				  vvp_context_t context)
+{
+      recv_vec4_pv_(port, bit, base, vwid, context);
+}
+
 void compile_repeat(char*label, long width, long repeat, struct symb_s arg)
 {
       vvp_fun_repeat*fun = new vvp_fun_repeat(width, repeat);

vvp/vvp_net.h

@@ -1450,6 +1450,9 @@ class vvp_fun_repeat  : public vvp_net_fun_t {
 
       void recv_vec4(vvp_net_ptr_t port, const vvp_vector4_t&bit,
                      vvp_context_t context);
+      void recv_vec4_pv(vvp_net_ptr_t port, const vvp_vector4_t&bit,
+			unsigned int base, unsigned int vwid,
+			vvp_context_t context) final;
 
     private:
       unsigned wid_;