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Support constraining AstSel (#5344)

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Signed-off-by: Arkadiusz Kozdra <[email protected]>
This commit is contained in:
Arkadiusz Kozdra
2024-08-08 15:37:08 +01:00
committed by GitHub
parent 78555b683c
commit 3e5859e5da
3 changed files with 20 additions and 0 deletions
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src/V3Randomize.cpp
+16
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@@ -529,6 +529,22 @@ class ConstraintExprVisitor final : public VNVisitor {
if (editFormat(nodep)) return;
editSMT(nodep, nodep->srcp());
}
void visit(AstSel* nodep) override {
if (editFormat(nodep)) return;
VNRelinker handle;
AstNodeExpr* const widthp = nodep->widthp()->unlinkFrBack(&handle);
FileLine* const fl = nodep->fileline();
AstNodeExpr* const msbp
= new AstSFormatF{fl, "%1d", false,
new AstAdd{fl, nodep->lsbp()->cloneTreePure(false),
new AstSub{fl, widthp, new AstConst{fl, 1}}}};
handle.relink(msbp);
AstNodeExpr* const lsbp
= new AstSFormatF{fl, "%1d", false, nodep->lsbp()->unlinkFrBack(&handle)};
handle.relink(lsbp);
editSMT(nodep, nodep->fromp(), lsbp, msbp);
}
void visit(AstSFormatF* nodep) override {}
void visit(AstStmtExpr* nodep) override {}
void visit(AstConstraintIf* nodep) override {