diff --git a/src/V3Active.cpp b/src/V3Active.cpp
index 9352737a6..39190c1cc 100644
--- a/src/V3Active.cpp
+++ b/src/V3Active.cpp
@@ -239,7 +239,7 @@ public:
 
     // Make a new AstActive sensitive to the given sentree and return it
     AstActive* makeActive(FileLine* const fl, AstSenTree* const senTreep) {
-        auto* const activep = new AstActive{fl, "", senTreep};
+        AstActive* const activep = new AstActive{fl, "", senTreep};
         activep->sensesStorep(activep->sensesp());
         addActive(activep);
         return activep;
@@ -572,8 +572,8 @@ class ActiveVisitor final : public VNVisitor {
         m_clockedProcess = true;
         if (nodep->edgeType() != VEdgeType::ET_CHANGED) m_allChanged = false;
 
-        if (const auto* const dtypep = nodep->sensp()->dtypep()) {
-            if (const auto* const basicp = dtypep->basicp()) {
+        if (const AstNodeDType* const dtypep = nodep->sensp()->dtypep()) {
+            if (const AstBasicDType* const basicp = dtypep->basicp()) {
                 if (basicp->isEvent()) nodep->edgeType(VEdgeType::ET_EVENT);
             }
         }
diff --git a/src/V3Assert.cpp b/src/V3Assert.cpp
index 9ca686a7b..0c6b848c7 100644
--- a/src/V3Assert.cpp
+++ b/src/V3Assert.cpp
@@ -143,7 +143,7 @@ class AssertVisitor final : public VNVisitor {
         }
     }
     AstSampled* newSampledExpr(AstNodeExpr* nodep) {
-        const auto sampledp = new AstSampled{nodep->fileline(), nodep};
+        AstSampled* const sampledp = new AstSampled{nodep->fileline(), nodep};
         sampledp->dtypeFrom(nodep);
         return sampledp;
     }
@@ -153,7 +153,7 @@ class AssertVisitor final : public VNVisitor {
                                           nodep->findUInt64DType()};
             v3Global.rootp()->dollarUnitPkgAddp()->addStmtsp(m_monitorNumVarp);
         }
-        const auto varrefp = new AstVarRef{nodep->fileline(), m_monitorNumVarp, access};
+        AstVarRef* const varrefp = new AstVarRef{nodep->fileline(), m_monitorNumVarp, access};
         varrefp->classOrPackagep(v3Global.rootp()->dollarUnitPkgAddp());
         return varrefp;
     }
@@ -163,7 +163,7 @@ class AssertVisitor final : public VNVisitor {
                                           nodep->findBitDType()};
             v3Global.rootp()->dollarUnitPkgAddp()->addStmtsp(m_monitorOffVarp);
         }
-        const auto varrefp = new AstVarRef{nodep->fileline(), m_monitorOffVarp, access};
+        AstVarRef* const varrefp = new AstVarRef{nodep->fileline(), m_monitorOffVarp, access};
         varrefp->classOrPackagep(v3Global.rootp()->dollarUnitPkgAddp());
         return varrefp;
     }
@@ -528,7 +528,7 @@ class AssertVisitor final : public VNVisitor {
             replaceDisplay(nodep, "%%Fatal");
         } else if (nodep->displayType() == VDisplayType::DT_MONITOR) {
             nodep->displayType(VDisplayType::DT_DISPLAY);
-            const auto fl = nodep->fileline();
+            FileLine* const fl = nodep->fileline();
             AstNode* monExprsp = nodep->fmtp()->exprsp();
             AstSenItem* monSenItemsp = nullptr;
             while (monExprsp) {
@@ -548,8 +548,8 @@ class AssertVisitor final : public VNVisitor {
             AstSenTree* const monSenTree = new AstSenTree{fl, monSenItemsp};
             const auto monNum = ++m_monitorNum;
             // Where $monitor was we do "__VmonitorNum = N;"
-            const auto newsetp = new AstAssign{fl, newMonitorNumVarRefp(nodep, VAccess::WRITE),
-                                               new AstConst{fl, monNum}};
+            AstAssign* const newsetp = new AstAssign{
+                fl, newMonitorNumVarRefp(nodep, VAccess::WRITE), new AstConst{fl, monNum}};
             nodep->replaceWith(newsetp);
             // Add "always_comb if (__VmonitorOn && __VmonitorNum==N) $display(...);"
             AstNode* const stmtsp = nodep;
@@ -566,14 +566,14 @@ class AssertVisitor final : public VNVisitor {
         } else if (nodep->displayType() == VDisplayType::DT_STROBE) {
             nodep->displayType(VDisplayType::DT_DISPLAY);
             // Need one-shot
-            const auto fl = nodep->fileline();
-            const auto varp
+            FileLine* const fl = nodep->fileline();
+            AstVar* const varp
                 = new AstVar{fl, VVarType::MODULETEMP, "__Vstrobe" + cvtToStr(m_modStrobeNum++),
                              nodep->findBitDType()};
             m_modp->addStmtsp(varp);
             // Where $strobe was we do "__Vstrobe = '1;"
-            const auto newsetp = new AstAssign{fl, new AstVarRef{fl, varp, VAccess::WRITE},
-                                               new AstConst{fl, AstConst::BitTrue{}}};
+            AstAssign* const newsetp = new AstAssign{fl, new AstVarRef{fl, varp, VAccess::WRITE},
+                                                     new AstConst{fl, AstConst::BitTrue{}}};
             nodep->replaceWith(newsetp);
             // Add "always_comb if (__Vstrobe) begin $display(...); __Vstrobe = '0; end"
             AstNode* const stmtsp = nodep;
@@ -587,7 +587,7 @@ class AssertVisitor final : public VNVisitor {
         }
     }
     void visit(AstMonitorOff* nodep) override {
-        const auto newp
+        AstAssign* const newp
             = new AstAssign{nodep->fileline(), newMonitorOffVarRefp(nodep, VAccess::WRITE),
                             new AstConst{nodep->fileline(), AstConst::BitTrue{}, nodep->off()}};
         nodep->replaceWith(newp);
diff --git a/src/V3AstNodes.cpp b/src/V3AstNodes.cpp
index 251765273..aef55a426 100644
--- a/src/V3AstNodes.cpp
+++ b/src/V3AstNodes.cpp
@@ -3064,7 +3064,7 @@ AstAlways* AstAssignW::convertToAlways() {
     if (hasTimingControl) {
         // If there's a timing control, put the assignment in a fork..join_none. This process won't
         // get marked as suspendable and thus will be scheduled normally
-        auto* forkp = new AstFork{flp, "", bodysp};
+        AstFork* forkp = new AstFork{flp, "", bodysp};
         forkp->joinType(VJoinType::JOIN_NONE);
         bodysp = forkp;
     }
diff --git a/src/V3Begin.cpp b/src/V3Begin.cpp
index f07de3594..b92525b59 100644
--- a/src/V3Begin.cpp
+++ b/src/V3Begin.cpp
@@ -506,8 +506,9 @@ AstNode* V3Begin::convertToWhile(AstForeach* nodep) {
                 AstNode* const first_clearp
                     = new AstAssign{fl, new AstVarRef{fl, first_varp, VAccess::WRITE},
                                     new AstConst{fl, AstConst::BitFalse{}}};
-                auto* const orp = new AstLogOr{fl, new AstVarRef{fl, first_varp, VAccess::READ},
-                                               new AstNeq{fl, new AstConst{fl, 0}, nextp}};
+                AstLogOr* const orp
+                    = new AstLogOr{fl, new AstVarRef{fl, first_varp, VAccess::READ},
+                                   new AstNeq{fl, new AstConst{fl, 0}, nextp}};
                 AstNode* const whilep = new AstWhile{fl, orp, first_clearp};
                 first_clearp->addNext(bodyPointp);
                 AstNode* const ifbodyp
diff --git a/src/V3LinkDot.cpp b/src/V3LinkDot.cpp
index b1b0b9223..4a4022842 100644
--- a/src/V3LinkDot.cpp
+++ b/src/V3LinkDot.cpp
@@ -1714,10 +1714,11 @@ class LinkDotFindVisitor final : public VNVisitor {
         }
         // Type depends on the method used, let V3Width figure it out later
         if (nodep->exprsp()) {  // Else empty expression and pretend no "with"
-            const auto indexArgRefp = new AstLambdaArgRef{argFl, name + "__DOT__index", true};
-            const auto valueArgRefp = new AstLambdaArgRef{argFl, name, false};
-            const auto newp = new AstWith{nodep->fileline(), indexArgRefp, valueArgRefp,
-                                          nodep->exprsp()->unlinkFrBackWithNext()};
+            AstLambdaArgRef* const indexArgRefp
+                = new AstLambdaArgRef{argFl, name + "__DOT__index", true};
+            AstLambdaArgRef* const valueArgRefp = new AstLambdaArgRef{argFl, name, false};
+            AstWith* const newp = new AstWith{nodep->fileline(), indexArgRefp, valueArgRefp,
+                                              nodep->exprsp()->unlinkFrBackWithNext()};
             funcrefp->addPinsp(newp);
         }
         funcrefp->addPinsp(argp);
diff --git a/src/V3LinkParse.cpp b/src/V3LinkParse.cpp
index 26017f4e4..3f7c7734e 100644
--- a/src/V3LinkParse.cpp
+++ b/src/V3LinkParse.cpp
@@ -387,7 +387,7 @@ class LinkParseVisitor final : public VNVisitor {
                 newfl->warnOff(V3ErrorCode::PROCASSWIRE, true);
                 // Create a ParseRef to the wire. We cannot use the var as it may be deleted if
                 // it's a port (see t_var_set_link.v)
-                auto* const assp = new AstAssign{
+                AstAssign* const assp = new AstAssign{
                     newfl, new AstParseRef{newfl, VParseRefExp::PX_TEXT, nodep->name()},
                     VN_AS(nodep->valuep()->unlinkFrBack(), NodeExpr)};
                 if (nodep->lifetime().isAutomatic()) {
diff --git a/src/V3Width.cpp b/src/V3Width.cpp
index fd4bf8655..8ee3810a1 100644
--- a/src/V3Width.cpp
+++ b/src/V3Width.cpp
@@ -588,7 +588,7 @@ class WidthVisitor final : public VNVisitor {
             return;
         }
         if (VN_IS(vdtypep, UnpackArrayDType)) {
-            auto* const newp = new AstPattern{nodep->fileline(), nullptr};
+            AstPattern* const newp = new AstPattern{nodep->fileline(), nullptr};
             patConcatConvertRecurse(newp, nodep);
             nodep->replaceWith(newp);
             VL_DO_DANGLING(pushDeletep(nodep), nodep);
@@ -796,7 +796,7 @@ class WidthVisitor final : public VNVisitor {
                     VL_DO_DANGLING(pushDeletep(nodep), nodep);
                     return;
                 } else {  // int a[] = {lhs} -> same as '{lhs}
-                    auto* const newp = new AstPattern{
+                    AstPattern* const newp = new AstPattern{
                         nodep->fileline(),
                         new AstPatMember{nodep->srcp()->fileline(), nodep->srcp()->unlinkFrBack(),
                                          nullptr, nullptr}};
@@ -4192,7 +4192,8 @@ class WidthVisitor final : public VNVisitor {
         if (AstQueueDType* const queuep = m_queueDTypeIndexed[indexDTypep]) {
             return queuep;
         } else {
-            auto* const newp = new AstQueueDType{indexDTypep->fileline(), indexDTypep, nullptr};
+            AstQueueDType* const newp
+                = new AstQueueDType{indexDTypep->fileline(), indexDTypep, nullptr};
             v3Global.rootp()->typeTablep()->addTypesp(newp);
             m_queueDTypeIndexed[indexDTypep] = newp;
             return newp;
@@ -5068,7 +5069,7 @@ class WidthVisitor final : public VNVisitor {
             iterateCheckAssign(nodep, "Assign RHS", nodep->rhsp(), FINAL, lhsDTypep);
             // if (debug()) nodep->dumpTree("-  AssignOut: ");
         }
-        if (auto* const controlp = nodep->timingControlp()) {
+        if (AstNode* const controlp = nodep->timingControlp()) {
             if (VN_IS(m_ftaskp, Func)) {
                 controlp->v3error("Timing controls are not legal in functions. Suggest use a task "
                                   "(IEEE 1800-2023 13.4.4)");
diff --git a/src/V3WidthSel.cpp b/src/V3WidthSel.cpp
index 4bb38eb1f..88e0630fe 100644
--- a/src/V3WidthSel.cpp
+++ b/src/V3WidthSel.cpp
@@ -382,8 +382,8 @@ class WidthSelVisitor final : public VNVisitor {
             std::string name = (qleftBacknessp    ? "sliceBackBack"
                                 : qrightBacknessp ? "sliceFrontBack"
                                                   : "slice");
-            auto* const newp = new AstCMethodHard{nodep->fileline(), fromp, name,
-                                                  qleftBacknessp ? qleftBacknessp : qleftp};
+            AstCMethodHard* const newp = new AstCMethodHard{
+                nodep->fileline(), fromp, name, qleftBacknessp ? qleftBacknessp : qleftp};
             newp->addPinsp(qrightBacknessp ? qrightBacknessp : qrightp);
             newp->dtypep(ddtypep);
             newp->didWidth(true);