Fix elaboration displays with `%m` (#6445).

Changes

@@ -50,6 +50,7 @@ Verilator 5.041 devel
 * Fix external function declarations with class typedef references (#6433).
 * Fix internal error on out-of-bounds real array access.
 * Fix pre/post increments in assertions (#6434).
+* Fix elaboration displays with `%m` (#6445). [Alex Solomatnikov]
 
 
 Verilator 5.040 2025-08-30

src/V3Width.cpp

@@ -5756,6 +5756,11 @@ class WidthVisitor final : public VNVisitor {
         // Just let all arguments seek their natural sizes
         userIterateChildren(nodep, WidthVP{SELF, BOTH}.p());
         if (!m_paramsOnly) {
+            nodep->foreach([this](AstScopeName* nodep) {  //
+                nodep->replaceWith(
+                    new AstConst{nodep->fileline(), AstConst::String{}, "<scope-unavailable>"});
+                pushDeletep(nodep);
+            });
             V3Const::constifyParamsEdit(nodep->fmtp());  // fmtp may change
             string text = VString::dequotePercent(nodep->fmtp()->text());
             if (text.empty()) text = "Elaboration system task message (IEEE 1800-2023 20.11)";

test_regress/t/t_assert_elab.v

@@ -7,7 +7,7 @@
 module t;
    localparam STR = "string";
    function logic checkParameter(input logic [8:0] N);
-      $display("x is %d.", N);
+      $info("For %m, x is %d.", N);
       if (N == 1)
         return 0;
       $fatal(1, "Parameter %d is invalid...%s and %s", N, STR, "constant both work");
@@ -19,6 +19,10 @@ module t;
    localparam X = checkParameter(1);
 `endif
 
+   generate
+      $info("%m: In generate");  // Issue 6445
+   endgenerate
+
    initial begin
       $write("*-* All Finished *-*\n");
       $finish;