Verilator 4.220 2022-03-12 released

[wsnyder]

Verilator 4.220 2022-03-12

Minor:

• Removed the deprecated lint_off flag -msg; use -rule instead.
• Removed the deprecated "fl" attribute in XML output; use "loc" attribute instead.
• Suppress WIDTH warning on negate using carry bit (Lint: Unary negate does not optionally expand by one bit like addition does verilator#3295). [Peter Monsson]
• Add trace dumpvars() call for selective runtime tracing (Dynamic selection of traced scopes verilator#3322). [Shunyao CAD]
• Add VERILATOR_VERSION_INTEGER for determining API (Wish for preprocessor determination of pre- vs. post-v4.210 model interface verilator#3343). [Larry Doolittle]
• Improve various V3Combine algorithm details (Internals: Don't show "Split always" statistics twice.  verilator#3328). [Yutetsu TAKATSUKASA]
• Improve various V3Order algorithm details. [Geza Lore]
• Fix macOS arm64 build (Fix compile error with --threads support for M1 CPUs verilator#3285) (Internals: Fix macOS arm64 build by excluding x86 only cpuid header verilator#3291). [Guokai Chen]
• Fix signed number operation (signed number operation verilator#3294) (signed number operation #3294 verilator#3308). [Raynard Qiao]
• Fix FST traces to include vector range (Missing vector annotation in FST dumping verilator#3296) (fst: include vector range to allow filling with 0's in gtkwave verilator#3297). [Jamie Iles]
• Fix skipping public enum values with four-state values (Portable way to mix enums visible in C++ and DontCare values? verilator#3303).
• Fix $readmem file not found to be warning not error (Error on missing $readmem file verilator#3310). [Alexander Grobman]
• Fix class stringification on wide arrays (unpacked array with packed part >64bits cannot compile verilator#3312). [Iru Cai]
• Fix $fscanf etc to return -1 on EOF (fscanf return 0 on EOF (instead of -1) verilator#3313). [Jose Tejada]
• Fix public function arguments that are arrayed (Public task, invalid types of C++ function parameters verilator#3316). [pawel256]
• Fix unnamedblk error on foreach (Duplicate declaration of block: 'unnamedblk1' verilator#3321). [Aliaksei Chapyzhenka]
• Fix crash in recursive module inlining (Assert: iterateAndNext node has no back verilator#3324). [Larry Doolittle]
• Fix VL_RESTORER behavior on passing a lvalue reference (Fix VL_RESTORER behavior on passing a lvalue reference verilator#3326). [HungMingWu]
• Fix compile error with --trace-fst --sc (Compile error using verilator with --sc & --trace-fst options verilator#3332). [leavinel]
• Fix cast to array types (Fix cast to array types verilator#3333). [Todd Strader]
• Fix Vdeeptemp error with --threads and --compiler clang (Split gives Vdeeptemp error verilator#3338). [Per Karlsson]