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Internals: Use common function to resolve task pins

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This commit is contained in:
Wilson Snyder
2009-11-30 18:36:31 -05:00
parent 5a502d451d
commit ad0fcb745e
9 changed files with 197 additions and 152 deletions
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src/V3Simulate.h
+17 -19
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@@ -43,6 +43,7 @@
#include "V3Error.h"
#include "V3Ast.h"
#include "V3Width.h"
#include "V3Task.h"
#include <deque>
@@ -509,25 +510,22 @@ private:
funcp = nodep->taskp()->castFunc(); if (!funcp) nodep->v3fatalSrc("Not linked");
// Apply function call values to function
// Note we'd need a stack if we allowed recursive functions!
AstNode* pinp = nodep->pinsp(); AstNode* nextpinp = NULL;
for (AstNode* stmtp = funcp->stmtsp(); stmtp; pinp=nextpinp, stmtp=stmtp->nextp()) {
if (AstVar* portp = stmtp->castVar()) {
if (portp->isIO()) {
if (pinp==NULL) {
nodep->v3error("Too few arguments in function call");
} else {
nextpinp = pinp->nextp();
if (portp->isOutput()) {
clearOptimizable(portp,"Language violation: Outputs not allowed in constant functions");
return;
}
// Evaluate pin value
pinp->accept(*this);
// Apply value to the function
if (!m_checkOnly && optimizable()) {
newNumber(stmtp)->opAssign(*fetchNumber(pinp));
}
}
V3TaskConnects tconnects = V3Task::taskConnects(nodep, nodep->taskp()->stmtsp());
for (V3TaskConnects::iterator it=tconnects.begin(); it!=tconnects.end(); ++it) {
AstVar* portp = it->first;
AstNode* pinp = it->second;
if (pinp==NULL) {
// Too few arguments in function call - ignore it
} else {
if (portp->isOutput()) {
clearOptimizable(portp,"Language violation: Outputs not allowed in constant functions");
return;
}
// Evaluate pin value
pinp->accept(*this);
// Apply value to the function
if (!m_checkOnly && optimizable()) {
newNumber(portp)->opAssign(*fetchNumber(pinp));
}
}
}