Internals: MSVC cleanups

include/verilated.cpp

@@ -1584,10 +1584,6 @@ IData _vl_vsscanf(FILE* fp,  // If a fscanf
                     _vl_vsss_skipspace(fp, floc, fromp, fstr);
                     _vl_vsss_read_str(fp, floc, fromp, fstr, t_tmp, "+-.0123456789eE");
                     if (!t_tmp[0]) goto done;
-                    union {
-                        double r;
-                        int64_t ld;
-                    } u;
                     // Timeunit was read earlier from up-front arguments
                     const int userUnits = Verilated::threadContextp()->impp()->timeFormatUnits();
                     // 0..-15

include/verilatedos.h

@@ -351,6 +351,7 @@ extern "C" void __gcov_dump();
 #  pragma warning(disable:4244)  // C4244: conversion from 'uint64_t' to 'uint_32_t', possible loss of data
 #  pragma warning(disable:4245)  // C4245: conversion from 'int' to 'unsigned', signed/unsigned mismatch
 #  pragma warning(disable:4267)  // C4267: conversion from 'size_t' to 'int', possible loss of data
+#  pragma warning(disable:4316)  // C4316: 'Vtop': object allocated on the heap may not be aligned 64
 #  pragma warning(disable:4996)  // C4996: sscanf/fopen/etc may be unsafe
 # endif
 #endif

src/V3Force.cpp

@@ -205,6 +205,7 @@ public:
                 return currInitp;
             } else {
                 lhsDtypep->v3fatalSrc("Unhandled type");
+                return nullptr;  // LCOV_EXCL_LINE
             }
         }
         static AstNodeExpr* wrapIntoExprp(AstVarRef* const refp, AstNodeExpr* const exprp,