Support VPI parameter and localparam (#2370)

include/verilated.cpp

@@ -2603,7 +2603,7 @@ void VerilatedScope::exportInsert(int finalize, const char* namep, void* cb) VL_
     }
 }
 
-void VerilatedScope::varInsert(int finalize, const char* namep, void* datap,
+void VerilatedScope::varInsert(int finalize, const char* namep, void* datap, bool isParam,
                                VerilatedVarType vltype, int vlflags, int dims, ...) VL_MT_UNSAFE {
     // Grab dimensions
     // In the future we may just create a large table at emit time and
@@ -2611,7 +2611,7 @@ void VerilatedScope::varInsert(int finalize, const char* namep, void* datap,
     if (!finalize) return;
 
     if (!m_varsp) m_varsp = new VerilatedVarNameMap();
-    VerilatedVar var(namep, datap, vltype, static_cast<VerilatedVarFlags>(vlflags), dims);
+    VerilatedVar var(namep, datap, vltype, static_cast<VerilatedVarFlags>(vlflags), dims, isParam);
 
     va_list ap;
     va_start(ap, dims);

include/verilated.h

@@ -335,8 +335,8 @@ public:  // But internals only - called from VerilatedModule's
     void configure(VerilatedSyms* symsp, const char* prefixp, const char* suffixp,
                    const char* identifier, vlsint8_t timeunit, const Type& type) VL_MT_UNSAFE;
     void exportInsert(int finalize, const char* namep, void* cb) VL_MT_UNSAFE;
-    void varInsert(int finalize, const char* namep, void* datap, VerilatedVarType vltype,
-                   int vlflags, int dims, ...) VL_MT_UNSAFE;
+    void varInsert(int finalize, const char* namep, void* datap, bool isParam,
+                   VerilatedVarType vltype, int vlflags, int dims, ...) VL_MT_UNSAFE;
     // ACCESSORS
     const char* name() const { return m_namep; }
     const char* identifier() const { return m_identifierp; }

include/verilated_sym_props.h

@@ -232,13 +232,15 @@ class VerilatedVar : public VerilatedVarProps {
     void* m_datap;  // Location of data
     const char* m_namep;  // Name - slowpath
 protected:
+    bool m_isParam;
     friend class VerilatedScope;
     // CONSTRUCTORS
     VerilatedVar(const char* namep, void* datap, VerilatedVarType vltype,
-                 VerilatedVarFlags vlflags, int dims)
+                 VerilatedVarFlags vlflags, int dims, bool isParam)
         : VerilatedVarProps(vltype, vlflags, (dims > 0 ? 1 : 0), ((dims > 1) ? dims - 1 : 0))
         , m_datap(datap)
-        , m_namep(namep) {}
+        , m_namep(namep)
+        , m_isParam(isParam) {}
 
 public:
     ~VerilatedVar() {}
@@ -247,6 +249,7 @@ public:
     const VerilatedRange& range() const { return packed(); }  // Deprecated
     const VerilatedRange& array() const { return unpacked(); }  // Deprecated
     const char* name() const { return m_namep; }
+    bool isParam() const { return m_isParam; }
 };
 
 #endif  // Guard