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Add --output-split-cfuncs for accelerating GCC.

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git-svn-id: file://localhost/svn/verilator/trunk/verilator@829 77ca24e4-aefa-0310-84f0-b9a241c72d87
This commit is contained in:
Wilson Snyder
2006-10-26 01:08:44 +00:00
parent 9026118a7c
commit 86c8e7b3e6
5 changed files with 30 additions and 2 deletions
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src/V3Order.cpp
+12 -2
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@@ -271,6 +271,7 @@ private:
vector<OrderLoopEndVertex*> m_pmlLoopEndps; // processInsLoop: End vertex for each color
vector<OrderLoopBeginVertex*> m_pomLoopMoveps;// processMoveLoop: Loops next nodes are under
AstCFunc* m_pomNewFuncp; // Current function being created
int m_pomNewStmts; // Statements in function being created
V3Graph m_pomGraph; // Graph of logic elements to move
V3List<OrderMoveVertex*> m_pomWaiting; // List of nodes needing inputs to become ready
protected:
@@ -688,6 +689,7 @@ public:
m_settleVxp = NULL;
m_inputsVxp = NULL;
m_loopIdMax = LOOPID_FIRST;
m_pomNewStmts = 0;
if (debug()) m_graph.debug(5); // 3 is default if global debug; we want acyc debugging
}
virtual ~OrderVisitor() {
@@ -1374,8 +1376,10 @@ void OrderVisitor::processMoveOne(OrderMoveVertex* vertexp, OrderMoveDomScope* d
}
else { // Normal logic
// Make or borrow a CFunc to contain the new statements
if (v3Global.opt.profileCFuncs()) {
// Put every statement into a unique function to ease profiling
if (v3Global.opt.profileCFuncs()
|| (v3Global.opt.outputSplitCFuncs()
&& v3Global.opt.outputSplitCFuncs() < m_pomNewStmts)) {
// Put every statement into a unique function to ease profiling or reduce function size
m_pomNewFuncp = NULL;
}
if (!m_pomNewFuncp && domainp != m_deleteDomainp) {
@@ -1383,6 +1387,7 @@ void OrderVisitor::processMoveOne(OrderMoveVertex* vertexp, OrderMoveDomScope* d
m_pomNewFuncp = new AstCFunc(nodep->fileline(), name, scopep);
m_pomNewFuncp->argTypes(EmitCBaseVisitor::symClassVar());
m_pomNewFuncp->symProlog(true);
m_pomNewStmts = 0;
if (domainp->hasInitial() || domainp->hasSettle()) m_pomNewFuncp->slow(true);
scopep->addActivep(m_pomNewFuncp);
// Where will we be adding the call?
@@ -1402,6 +1407,11 @@ void OrderVisitor::processMoveOne(OrderMoveVertex* vertexp, OrderMoveDomScope* d
pushDeletep(nodep); nodep=NULL;
} else {
m_pomNewFuncp->addStmtsp(nodep);
if (v3Global.opt.outputSplitCFuncs()) {
// Add in the number of nodes we're adding
EmitCBaseCounterVisitor visitor(nodep);
m_pomNewStmts += visitor.count();
}
}
}
processMoveDoneOne (vertexp);