From d891e5ac3a3ea91a8a2238e86eae7fcf340d1f91 Mon Sep 17 00:00:00 2001
From: Paul Wright <68547250+polmacanceart@users.noreply.github.com>
Date: Mon, 25 Jan 2021 12:33:38 +0000
Subject: [PATCH] Fix to exclude strings from toggle coverage (#2766) (#2767)

---
 src/V3AstNodes.h                | 2 +-
 test_regress/t/t_cover_toggle.v | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/V3AstNodes.h b/src/V3AstNodes.h
index b6bb6653a..feebe0714 100644
--- a/src/V3AstNodes.h
+++ b/src/V3AstNodes.h
@@ -2170,7 +2170,7 @@ public:
         return ((isIO() || isSignal())
                 && (isIO() || isBitLogic())
                 // Wrapper would otherwise duplicate wrapped module's coverage
-                && !isSc() && !isPrimaryIO() && !isConst() && !isDouble());
+                && !isSc() && !isPrimaryIO() && !isConst() && !isDouble() && !isString());
     }
     bool isClassMember() const { return varType() == AstVarType::MEMBER; }
     bool isStatementTemp() const { return (varType() == AstVarType::STMTTEMP); }
diff --git a/test_regress/t/t_cover_toggle.v b/test_regress/t/t_cover_toggle.v
index 1c4008c3b..eb8e24ae2 100644
--- a/test_regress/t/t_cover_toggle.v
+++ b/test_regress/t/t_cover_toggle.v
@@ -7,11 +7,13 @@
 module t (/*AUTOARG*/
    // Inputs
    clk,
-   check_real
+   check_real,
+   check_string
    );
 
    input clk;
    input real check_real; // Check issue #2741
+   input string check_string; // Check issue #2766
 
    typedef struct packed {
       union packed {