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Internals: V3GenClk should scan CFunc internals only at the CCall

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Signed-off-by: Wilson Snyder <wsnyder@wsnyder.org>
This commit is contained in:
John Coiner 2017-11-23 08:21:20 -05:00 committed by Wilson Snyder
parent 57c8590b21
commit 71b2eeef67
1 changed files with 22 additions and 8 deletions
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30
src/V3GenClk.cpp
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@ -149,9 +149,10 @@ private:
AstUser1InUse m_inuser1;
// STATE
AstActive* m_activep; // Inside activate statement
AstNodeAssign* m_assignp; // Inside assigndly statement
AstNodeModule* m_topModp; // Top module
AstActive* m_activep; // Inside activate statement
AstCFunc* m_tracingCallp; // Currently tracing a call to this cfunc
AstNodeAssign* m_assignp; // Inside assigndly statement
AstNodeModule* m_topModp; // Top module
// VISITORS
virtual void visit(AstTopScope* nodep) {
@ -173,8 +174,20 @@ private:
virtual void visit(AstCCall* nodep) {
nodep->iterateChildren(*this);
// Enter the function and trace it
m_tracingCallp = nodep->funcp();
nodep->funcp()->accept(*this);
}
virtual void visit(AstCFunc* nodep) {
if (m_tracingCallp != nodep) {
// Only consider logic within a CFunc when looking
// at the call to it, and not when scanning whatever
// scope it happens to live beneath.
return;
}
m_tracingCallp = NULL;
nodep->iterateChildren(*this);
}
//----
virtual void visit(AstVarRef* nodep) {
@ -213,11 +226,12 @@ private:
}
public:
// CONSTRUCTORS
explicit GenClkReadVisitor(AstNetlist* nodep) {
m_activep = NULL;
m_assignp = NULL;
m_topModp = NULL;
nodep->accept(*this);
explicit GenClkReadVisitor(AstNetlist* nodep)
: m_activep(NULL)
, m_tracingCallp(NULL)
, m_assignp(NULL)
, m_topModp(NULL) {
nodep->accept(*this);
}
virtual ~GenClkReadVisitor() {}
};