diff --git a/test_regress/t/t_lint_historical.v b/test_regress/t/t_lint_historical.v
index b1c1caf24..95f11bcc2 100644
--- a/test_regress/t/t_lint_historical.v
+++ b/test_regress/t/t_lint_historical.v
@@ -7,6 +7,7 @@
 module t;
    // Test all warnings, including those that are historically removed still parse
    // verilator lint_off ALWCOMBORDER
+   // verilator lint_off ASCRANGE
    // verilator lint_off ASSIGNDLY
    // verilator lint_off ASSIGNIN
    // verilator lint_off BADSTDPRAGMA
@@ -24,13 +25,14 @@ module t;
    // verilator lint_off CMPCONST
    // verilator lint_off COLONPLUS
    // verilator lint_off COMBDLY
+   // verilator lint_off CONSTRAINTIGN
    // verilator lint_off CONTASSREG
-   // verilator lint_off DEFPARAM
    // verilator lint_off DECLFILENAME
+   // verilator lint_off DEFPARAM
    // verilator lint_off DEPRECATED
-   // verilator lint_off RISEFALLDLY
-   // verilator lint_off MINTYPMAXDLY
+   // verilator lint_off ENCAPSULATED
    // verilator lint_off ENDLABEL
+   // verilator lint_off ENUMVALUE
    // verilator lint_off EOFNEWLINE
    // verilator lint_off GENCLK
    // verilator lint_off HIERBLOCK
@@ -38,6 +40,7 @@ module t;
    // verilator lint_off IGNOREDRETURN
    // verilator lint_off IMPERFECTSCH
    // verilator lint_off IMPLICIT
+   // verilator lint_off IMPLICITSTATIC
    // verilator lint_off IMPORTSTAR
    // verilator lint_off IMPURE
    // verilator lint_off INCABSPATH
@@ -45,10 +48,12 @@ module t;
    // verilator lint_off INITIALDLY
    // verilator lint_off INSECURE
    // verilator lint_off LATCH
-   // verilator lint_off ASCRANGE
+   // verilator lint_off LITENDIAN
+   // verilator lint_off MINTYPMAXDLY
    // verilator lint_off MODDUP
    // verilator lint_off MULTIDRIVEN
    // verilator lint_off MULTITOP
+   // verilator lint_off NEWERSTD
    // verilator lint_off NOLATCH
    // verilator lint_off NULLPORT
    // verilator lint_off PINCONNECTEMPTY
@@ -62,9 +67,11 @@ module t;
    // verilator lint_off RANDC
    // verilator lint_off REALCVT
    // verilator lint_off REDEFMACRO
+   // verilator lint_off RISEFALLDLY
    // verilator lint_off SELRANGE
    // verilator lint_off SHORTREAL
    // verilator lint_off SPLITVAR
+   // verilator lint_off STATICVAR
    // verilator lint_off STMTDLY
    // verilator lint_off SYMRSVDWORD
    // verilator lint_off SYNCASYNCNET
@@ -87,6 +94,9 @@ module t;
    // verilator lint_off WAITCONST
    // verilator lint_off WIDTH
    // verilator lint_off WIDTHCONCAT
+   // verilator lint_off WIDTHEXPAND
+   // verilator lint_off WIDTHTRUNC
+   // verilator lint_off WIDTHXZEXPAND
    // verilator lint_off ZERODLY
 
 endmodule
diff --git a/test_regress/t/t_randc.out b/test_regress/t/t_randc.out
index c42bb3bcf..f83777149 100644
--- a/test_regress/t/t_randc.out
+++ b/test_regress/t/t_randc.out
@@ -3,10 +3,10 @@
       |                          ^~~~~
                 ... For warning description see https://verilator.org/warn/RANDC?v=latest
                 ... Use "/* verilator lint_off RANDC */" and lint_on around source to disable this message.
-%Warning-RANDC: t/t_randc.v:45:26: Unsupported: Converting 'randc' to 'rand'
-   45 |    randc bit [WIDTH-1:0] m_var;
+%Warning-RANDC: t/t_randc.v:46:26: Unsupported: Converting 'randc' to 'rand'
+   46 |    randc bit [WIDTH-1:0] m_var;
       |                          ^~~~~
-%Warning-RANDC: t/t_randc.v:74:17: Unsupported: Converting 'randc' to 'rand'
-   74 |    randc enum_t m_var;
+%Warning-RANDC: t/t_randc.v:76:17: Unsupported: Converting 'randc' to 'rand'
+   76 |    randc enum_t m_var;
       |                 ^~~~~
 %Error: Exiting due to
diff --git a/test_regress/t/t_randc.v b/test_regress/t/t_randc.v
index e03ce4137..683cb996c 100644
--- a/test_regress/t/t_randc.v
+++ b/test_regress/t/t_randc.v
@@ -13,12 +13,13 @@ class ClsNarrow #(parameter int WIDTH);
       automatic int maxcount;
       automatic bit bad;
       automatic int randomize_result;
+      $display("Test %m");
       for (int trial = 0; trial < 10; ++trial) begin
          for (i = 0; i < (2 ** WIDTH); ++i) begin
             randomize_result = randomize();
             if (randomize_result !== 1) $stop;
 `ifdef TEST_VERBOSE
-            $display("w%0d trial=%0d m_var=%0d", WIDTH, i, m_var);
+            $display("w%0d i=%0d m_var=%x", WIDTH, i, m_var);
 `endif
             ++count[m_var];
          end
@@ -47,11 +48,12 @@ class ClsWide #(parameter int WIDTH);
    function void test;
       automatic bit [WIDTH-1:0] last;
       automatic int randomize_result;
+      $display("Test %m");
       for (int i = 0; i < 100; ++i) begin
          randomize_result = randomize();
          if (randomize_result !== 1) $stop;
 `ifdef TEST_VERBOSE
-         $display("ww%0d m_var=%0d", WIDTH, i, m_var);
+         $display("ww%0d i=%0d m_var=%x", WIDTH, i, m_var);
 `endif
          if (i != 0) begin
 `ifndef TEST_IGNORE_RANDC
@@ -76,12 +78,13 @@ class ClsEnum;
    function void test;
       automatic enum_t last;
       automatic int randomize_result;
+      $display("Test %m");
       for (int trial = 0; trial < 10; ++trial) begin
          for (int i = 0; i < 3; ++i) begin
             randomize_result = randomize();
             if (randomize_result !== 1) $stop;
 `ifdef TEST_VERBOSE
-            $display("we trial=%0d m_var=%0d", i, m_var);
+            $display("we i=%0d m_var=%x", i, m_var);
 `endif
             if (m_var != TWO && m_var != FIVE && m_var != SIX) $stop;
             if (i != 0) begin
@@ -100,6 +103,8 @@ module t (/*AUTOARG*/);
 
    ClsNarrow #(1) c1;  // Degenerate case
    ClsNarrow #(2) c2;
+   ClsNarrow #(3) c3;
+   ClsNarrow #(3) c3b;  // Need to have two of same size to cover dtype dedup code
    ClsNarrow #(9) c9;
    ClsWide #(31) c31;
    ClsWide #(32) c32;
@@ -110,6 +115,10 @@ module t (/*AUTOARG*/);
       c1.test();
       c2 = new;
       c2.test();
+      c3 = new;
+      c3.test();
+      c3b = new;
+      c3b.test();
       c9 = new;
       c9.test();
       c31 = new;