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Support unpacked structs (#3802)

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This commit is contained in:
Aleksander Kiryk
2022-12-20 19:22:42 -05:00
committed by GitHub
parent c3b4bc85fa
commit c2b09e35f8
43 changed files with 541 additions and 95 deletions
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src/V3Coverage.cpp
+28 -12
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@@ -354,18 +354,34 @@ private:
newent.cleanup();
}
} else if (const AstStructDType* const adtypep = VN_CAST(dtypep, StructDType)) {
// For now it's packed, so similar to array
for (AstMemberDType* itemp = adtypep->membersp(); itemp;
itemp = VN_AS(itemp->nextp(), MemberDType)) {
AstNodeDType* const subtypep = itemp->subDTypep()->skipRefp();
const int index_code = itemp->lsb();
ToggleEnt newent{above.m_comment + std::string{"."} + itemp->name(),
new AstSel{varp->fileline(), above.m_varRefp->cloneTree(true),
index_code, subtypep->width()},
new AstSel{varp->fileline(), above.m_chgRefp->cloneTree(true),
index_code, subtypep->width()}};
toggleVarRecurse(subtypep, depth + 1, newent, varp, chgVarp);
newent.cleanup();
if (adtypep->packed()) {
for (AstMemberDType* itemp = adtypep->membersp(); itemp;
itemp = VN_AS(itemp->nextp(), MemberDType)) {
AstNodeDType* const subtypep = itemp->subDTypep()->skipRefp();
const int index_code = itemp->lsb();
ToggleEnt newent{above.m_comment + std::string{"."} + itemp->name(),
new AstSel{varp->fileline(), above.m_varRefp->cloneTree(true),
index_code, subtypep->width()},
new AstSel{varp->fileline(), above.m_chgRefp->cloneTree(true),
index_code, subtypep->width()}};
toggleVarRecurse(subtypep, depth + 1, newent, varp, chgVarp);
newent.cleanup();
}
} else {
for (AstMemberDType* itemp = adtypep->membersp(); itemp;
itemp = VN_AS(itemp->nextp(), MemberDType)) {
AstNodeDType* const subtypep = itemp->subDTypep()->skipRefp();
AstNodeExpr* const varRefp = new AstStructSel{
varp->fileline(), above.m_varRefp->cloneTree(true), itemp->name()};
AstNodeExpr* const chgRefp = new AstStructSel{
varp->fileline(), above.m_varRefp->cloneTree(true), itemp->name()};
varRefp->dtypep(subtypep);
chgRefp->dtypep(subtypep);
ToggleEnt newent{above.m_comment + std::string{"."} + itemp->name(), varRefp,
chgRefp};
toggleVarRecurse(subtypep, depth + 1, newent, varp, chgVarp);
newent.cleanup();
}
}
} else if (const AstUnionDType* const adtypep = VN_CAST(dtypep, UnionDType)) {
// Arbitrarily handle only the first member of the union