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Support clocking blocks (#3674)

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This commit is contained in:
Krzysztof Bieganski
2022-12-23 07:34:49 -05:00
committed by GitHub
parent d64971ba35
commit bb44d4e4f2
58 changed files with 1817 additions and 218 deletions
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src/V3Begin.cpp
+17 -11
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@@ -70,7 +70,7 @@ private:
string m_namedScope; // Name of begin blocks above us
string m_unnamedScope; // Name of begin blocks, including unnamed blocks
int m_ifDepth = 0; // Current if depth
bool m_underFork = false; // True if the current statement is directly under a fork
bool m_keepBegins = false; // True if begins should not be inlined
// METHODS
@@ -123,11 +123,18 @@ private:
// VISITORS
void visit(AstFork* nodep) override {
VL_RESTORER(m_underFork);
m_underFork = true;
// Keep this begin to group its statements together
VL_RESTORER(m_keepBegins);
m_keepBegins = true;
dotNames(nodep, "__FORK__");
nodep->name("");
}
void visit(AstNodeAssign* nodep) override {
// Keep begin under assignment (in nodep->timingControlp())
VL_RESTORER(m_keepBegins);
m_keepBegins = true;
iterateChildren(nodep);
}
void visit(AstNodeModule* nodep) override {
VL_RESTORER(m_modp);
{
@@ -178,15 +185,14 @@ private:
VL_RESTORER(m_unnamedScope);
{
{
VL_RESTORER(m_underFork);
m_underFork = false;
VL_RESTORER(m_keepBegins);
m_keepBegins = false;
dotNames(nodep, "__BEGIN__");
}
UASSERT_OBJ(!nodep->genforp(), nodep, "GENFORs should have been expanded earlier");
// Cleanup
if (m_underFork) {
// If we're under a fork, keep this begin to group its statements together
if (m_keepBegins) {
nodep->name("");
return;
}
@@ -263,8 +269,8 @@ private:
}
// VISITORS - LINT CHECK
void visit(AstIf* nodep) override { // not AstNodeIf; other types not covered
VL_RESTORER(m_underFork);
m_underFork = false;
VL_RESTORER(m_keepBegins);
m_keepBegins = false;
// Check IFDEPTH warning - could be in other transform files if desire
VL_RESTORER(m_ifDepth);
if (m_ifDepth == -1 || v3Global.opt.ifDepth() < 1) { // Turned off
@@ -279,8 +285,8 @@ private:
iterateChildren(nodep);
}
void visit(AstNode* nodep) override {
VL_RESTORER(m_underFork);
m_underFork = false;
VL_RESTORER(m_keepBegins);
m_keepBegins = false;
iterateChildren(nodep);
}