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Generate AstNode accessors via astgen

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Introduce the @astgen directives parsed by astgen, currently used for
the generation child node (operand) accessors. Please see the updated
internal documentation for details.
This commit is contained in:
Geza Lore
2022-09-21 13:56:03 +01:00
parent 0a8cfb8d2c
commit ce03293128
70 changed files with 1386 additions and 1530 deletions
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src/V3Split.cpp
+9 -9
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@@ -601,14 +601,14 @@ protected:
UINFO(4, " ALW " << nodep << endl);
if (debug() >= 9) nodep->dumpTree(cout, " alwIn:: ");
scoreboardClear();
processBlock(nodep->bodysp());
processBlock(nodep->stmtsp());
if (debug() >= 9) nodep->dumpTree(cout, " alwOut: ");
}
void visit(AstNodeIf* nodep) override {
UINFO(4, " IF " << nodep << endl);
iterateAndNextNull(nodep->condp());
processBlock(nodep->ifsp());
processBlock(nodep->thensp());
processBlock(nodep->elsesp());
}
@@ -713,14 +713,14 @@ public:
// Put a placeholder node into stmtp to track our position.
// We'll strip these out after the blocks are fully cloned.
AstSplitPlaceholder* const placeholderp = makePlaceholderp();
alwaysp->addStmtp(placeholderp);
alwaysp->addStmtsp(placeholderp);
m_addAfter[color] = placeholderp;
m_newBlocksp->push_back(alwaysp);
}
// Scan the body of the always. We'll handle if/else
// specially, everything else is a leaf node that we can
// just clone into one of the split always blocks.
iterateAndNextNull(m_origAlwaysp->bodysp());
iterateAndNextNull(m_origAlwaysp->stmtsp());
}
protected:
@@ -776,7 +776,7 @@ protected:
m_addAfter[color] = if_placeholderp;
}
iterateAndNextNull(nodep->ifsp());
iterateAndNextNull(nodep->thensp());
for (const auto& color : colors) m_addAfter[color] = clones[color]->elsesp();
@@ -804,7 +804,7 @@ class RemovePlaceholdersVisitor final : public VNVisitor {
VL_RESTORER(m_isPure);
m_isPure = true;
iterateChildren(nodep);
if (!nodep->ifsp() && !nodep->elsesp() && m_isPure) pushDeletep(nodep->unlinkFrBack());
if (!nodep->thensp() && !nodep->elsesp() && m_isPure) pushDeletep(nodep->unlinkFrBack());
}
void visit(AstAlways* nodep) override {
VL_RESTORER(m_isPure);
@@ -812,7 +812,7 @@ class RemovePlaceholdersVisitor final : public VNVisitor {
iterateChildren(nodep);
if (m_isPure) {
bool emptyOrCommentOnly = true;
for (AstNode* bodysp = nodep->bodysp(); bodysp; bodysp = bodysp->nextp()) {
for (AstNode* bodysp = nodep->stmtsp(); bodysp; bodysp = bodysp->nextp()) {
// If this always block contains only AstComment, remove here.
// V3Gate will remove anyway.
if (!VN_IS(bodysp, Comment)) {
@@ -955,7 +955,7 @@ protected:
void visit(AstAlways* nodep) override {
// build the scoreboard
scoreboardClear();
scanBlock(nodep->bodysp());
scanBlock(nodep->stmtsp());
if (m_noReorderWhy != "") {
// We saw a jump or something else rare that we don't handle.
@@ -989,7 +989,7 @@ protected:
m_curIfConditional = nodep;
iterateAndNextNull(nodep->condp());
m_curIfConditional = nullptr;
scanBlock(nodep->ifsp());
scanBlock(nodep->thensp());
scanBlock(nodep->elsesp());
}