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Internals: Refactor generate construct Ast handling (#6280) (#6470)

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Internals: Refactor generate construct Ast handling (#6280)

We introduce AstNodeGen, the common base class of AstGenBlock,
AstGenCase, AstGenFor, and AstGenIf, which together represent all SV
generate constructs. Subsequently remove AstNodeFor, AstNodeCase
(AstCase is now directly derived from AstNodeStmt) and adjust internals
to work on the new representation.

Output is identical modulo hashes do to changed AstNode type ids, no
functional change intended.

Step towards #6280.
This commit is contained in:
Geza Lore
2025-09-23 19:49:01 +01:00
committed by GitHub
parent df187c4406
commit 800af37975
42 changed files with 687 additions and 517 deletions
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src/V3Assert.cpp
+8 -1
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@@ -129,7 +129,7 @@ class AssertVisitor final : public VNVisitor {
// STATE
AstNodeModule* m_modp = nullptr; // Last module
const AstBegin* m_beginp = nullptr; // Last begin
const AstNode* m_beginp = nullptr; // Last AstBegin/AstGenBlock
unsigned m_monitorNum = 0; // Global $monitor numbering (not per module)
AstVar* m_monitorNumVarp = nullptr; // $monitor number variable
AstVar* m_monitorOffVarp = nullptr; // $monitoroff variable
@@ -809,6 +809,13 @@ class AssertVisitor final : public VNVisitor {
m_procedurep = nodep;
iterateChildren(nodep);
}
void visit(AstGenBlock* nodep) override {
// This code is needed rather than a visitor in V3Begin,
// because V3Assert is called before V3Begin
VL_RESTORER(m_beginp);
m_beginp = nodep;
iterateChildren(nodep);
}
void visit(AstBegin* nodep) override {
// This code is needed rather than a visitor in V3Begin,
// because V3Assert is called before V3Begin