Internals: Misc VCD code cleanups. No functional change.

include/verilated_cov.cpp

@@ -111,7 +111,7 @@ private:
 	m_insertLineno = 0;
     }
 public:
-    ~VerilatedCovImp() { clear(); }
+    ~VerilatedCovImp() { clearGuts(); }
     static VerilatedCovImp& imp() {
 	static VerilatedCovImp s_singleton;
 	return s_singleton;
@@ -217,10 +217,7 @@ private:
 	if (combineHier ("q.za","q.zb")		!="q.z*") VL_FATAL_MT(__FILE__,__LINE__,"","%Error: selftest\n");
 	if (combineHier ("1.2.3.a","9.8.7.a")	!="*.a") VL_FATAL_MT(__FILE__,__LINE__,"","%Error: selftest\n");
     }
-
-public:
-    // PUBLIC METHODS
-    void clear() {
+    void clearGuts() {
 	for (ItemList::const_iterator it=m_items.begin(); it!=m_items.end(); ++it) {
 	    VerilatedCovImpItem* itemp = *(it);
 	    delete itemp;
@@ -229,6 +226,12 @@ public:
 	m_indexValues.clear();
 	m_valueIndexes.clear();
     }
+
+public:
+    // PUBLIC METHODS
+    void clear() {
+        clearGuts();
+    }
     void clearNonMatch (const char* matchp) {
 	if (matchp && matchp[0]) {
 	    ItemList newlist;

include/verilated_vcd_c.cpp

@@ -219,7 +219,7 @@ void VerilatedVcd::makeNameMap() {
     m_namemapp = new NameMap;
     for (vluint32_t ent = 0; ent< m_callbacks.size(); ent++) {
 	VerilatedVcdCallInfo *cip = m_callbacks[ent];
-	cip->m_code = nextCode();
+	cip->m_code = m_nextCode;
 	(cip->m_initcb) (this, cip->m_userthis, cip->m_code);
     }
 
@@ -265,6 +265,7 @@ VerilatedVcd::~VerilatedVcd() {
 }
 
 void VerilatedVcd::closePrev () {
+    // This function is on the flush() call path
     if (!isOpen()) return;
 
     bufferFlush();
@@ -275,6 +276,7 @@ void VerilatedVcd::closePrev () {
 void VerilatedVcd::closeErr () {
     // Close due to an error.  We might abort before even getting here,
     // depending on the definition of vl_fatal.
+    // This function is on the flush() call path
     if (!isOpen()) return;
 
     // No buffer flush, just fclose
@@ -283,6 +285,7 @@ void VerilatedVcd::closeErr () {
 }
 
 void VerilatedVcd::close() {
+    // This function is on the flush() call path
     if (!isOpen()) return;
     if (m_evcd) {
 	printStr("$vcdclose ");
@@ -311,7 +314,7 @@ void VerilatedVcd::printTime (vluint64_t timeui) {
     // Dinotrace doesn't mind, but Cadence vvision seems to choke
     if (VL_UNLIKELY(timeui < m_timeLastDump)) {
 	timeui = m_timeLastDump;
-	static bool backTime = false;
+	static VL_THREAD_LOCAL bool backTime = false;
 	if (!backTime) {
 	    backTime = true;
 	    VL_PRINTF_MT("VCD time is moving backwards, wave file may be incorrect.\n");
@@ -336,6 +339,7 @@ void VerilatedVcd::bufferResize(vluint64_t minsize) {
 }
 
 void VerilatedVcd::bufferFlush () {
+    // This function is on the flush() call path
     // We add output data to m_writep.
     // When it gets nearly full we dump it using this routine which calls write()
     // This is much faster than using buffered I/O
@@ -511,7 +515,7 @@ void VerilatedVcd::declare (vluint32_t code, const char* name, const char* wirep
     if (tri) codesNeeded *= 2;   // Space in change array for __en signals
 
     // Make sure array is large enough
-    m_nextCode = std::max(nextCode(), code+codesNeeded);
+    m_nextCode = std::max(m_nextCode, code+codesNeeded);
     if (m_sigs.capacity() <= m_nextCode) {
 	m_sigs.reserve(m_nextCode*2);	// Power-of-2 allocation speeds things up
     }
@@ -625,7 +629,7 @@ void VerilatedVcd::addCallback (
 	std::string msg = std::string("Internal: ")+__FILE__+"::"+__FUNCTION__+" called with already open file";
 	VL_FATAL_MT(__FILE__,__LINE__,"",msg.c_str());
     }
-    VerilatedVcdCallInfo* vci = new VerilatedVcdCallInfo(initcb, fullcb, changecb, userthis, nextCode());
+    VerilatedVcdCallInfo* vci = new VerilatedVcdCallInfo(initcb, fullcb, changecb, userthis, m_nextCode);
     m_callbacks.push_back(vci);
 }
 
@@ -638,7 +642,6 @@ void VerilatedVcd::dumpFull (vluint64_t timeui) {
 	VerilatedVcdCallInfo *cip = m_callbacks[ent];
 	(cip->m_fullcb) (this, cip->m_userthis, cip->m_code);
     }
-    dumpDone ();
 }
 
 void VerilatedVcd::dump (vluint64_t timeui) {
@@ -657,7 +660,6 @@ void VerilatedVcd::dump (vluint64_t timeui) {
 	VerilatedVcdCallInfo *cip = m_callbacks[ent];
 	(cip->m_changecb) (this, cip->m_userthis, cip->m_code);
     }
-    dumpDone();
 }
 
 void VerilatedVcd::dumpPrep (vluint64_t timeui) {
@@ -666,9 +668,6 @@ void VerilatedVcd::dumpPrep (vluint64_t timeui) {
     printStr("\n");
 }
 
-void VerilatedVcd::dumpDone () {
-}
-
 //======================================================================
 // Static members
 

include/verilated_vcd_c.h

@@ -24,6 +24,7 @@
 #define _VERILATED_VCD_C_H_ 1
 
 #include "verilatedos.h"
+#include "verilated.h"
 
 #include <string>
 #include <vector>
@@ -128,8 +129,6 @@ private:
     void dumpHeader();
     void dumpPrep (vluint64_t timeui);
     void dumpFull (vluint64_t timeui);
-    // cppcheck-suppress functionConst
-    void dumpDone ();
     inline void printCode (vluint32_t code) {
 	if (code>=(94*94*94)) *m_writep++ = static_cast<char>((code/94/94/94)%94+33);
 	if (code>=(94*94))    *m_writep++ = static_cast<char>((code/94/94)%94+33);
@@ -156,8 +155,6 @@ public:
     ~VerilatedVcd();
 
     // ACCESSORS
-    /// Inside dumping routines, return next VCD signal code
-    vluint32_t nextCode() const {return m_nextCode;}
     /// Set size in megabytes after which new file should be created
     void rolloverMB(vluint64_t rolloverMB) { m_rolloverMB=rolloverMB; };
     /// Is file open?
@@ -170,9 +167,11 @@ public:
     // METHODS
     void open (const char* filename);	///< Open the file; call isOpen() to see if errors
     void openNext (bool incFilename);	///< Open next data-only file
-    void flush() { bufferFlush(); }	///< Flush any remaining data
-    static void flush_all();		///< Flush any remaining data from all files
     void close ();			///< Close the file
+    /// Flush any remaining data to this file
+    void flush() { bufferFlush(); }
+    /// Flush any remaining data from all files
+    static void flush_all();
 
     void set_time_unit (const char* unit); ///< Set time units (s/ms, defaults to ns)
     void set_time_unit (const std::string& unit) { set_time_unit(unit.c_str()); }

src/V3OrderGraph.h

@@ -140,7 +140,7 @@ class OrderEitherVertex : public V3GraphVertex {
     AstScope*	m_scopep;	// Scope the vertex is in
     AstSenTree*	m_domainp;	// Clock domain (NULL = to be computed as we iterate)
     OrderLoopId	m_inLoop;	// Loop number vertex is in
-    bool	m_isFromInput;	// From input, or derrived therefrom (conservatively false)
+    bool	m_isFromInput;	// From input, or derived therefrom (conservatively false)
 protected:
     OrderEitherVertex(V3Graph* graphp, const OrderEitherVertex& old)
 	: V3GraphVertex(graphp, old), m_scopep(old.m_scopep), m_domainp(old.m_domainp)