Verilator 5.034 2025-02-24 released

[wsnyder]

Verilator 5.034 2025-02-24

Important:

• This is likely the last version to support Ubuntu 20.04, which is at end-of-life.
• Add expression coverage (Combinational/Expression Coverage verilator#4677) (Add expression coverage verilator#5719). [Todd Strader]

Other:

• Add COVERIGN warning, as a more specific UNSUPPORTED error.
• Add --public-ignore to ignore public metacomments (Add --public-ignore to ignore public metacomments verilator#5716). [Andrew Nolte]
• Add --preproc-token-limit (Make preprocessor token limit configurable verilator#5768). [Krzysztof Bieganski, Antmicro Ltd.]
• Add lint error on importing package within a class (Add lint error on importing package within a class verilator#5634) (Add lint error on importing package within a class (#5634) verilator#5679). [Nick Brereton]
• Add --preproc-resolve for modules in preprocessor output (Add --preproc-resolve option for preprocessor verilator#5789). [Kamil Rakoczy, Antmicro Ltd.]
• Support multidimensional array access via VPI (Support VPI access to a multidimensional packed array verilator#2812) (Support multidimensional array access via VPI (#2812) verilator#5573). [Krzysztof Starecki]
• Support nested classes (Support nested classes verilator#4178) (Support nested classes (#4178) verilator#5778). [Kamil Rakoczy, Antmicro Ltd.]
• Support VPI array accessors (Implement VPI array accessors  verilator#5612). [Moubarak Jeje]
• Support unpacked structure constrained randomization (Support Unpacked Structures' Constrained Randomization verilator#5657) (Support Unpacked Structures' Constrained Randomization (#5657) verilator#5759). [Yilou Wang]
• Support generated classes (Support class inside generate loop verilator#5665). [Shou-Li Hsu]
• Support constraints on associative array user-defined keys (Support constrained random for assoc_arr with complex index types  verilator#5671) (Support constraint for Assoc array with user-defined-type Index (#5671) verilator#5729). [Yilou Wang]
• Support +incdir with multiple directories.
• Support integer atom type ports in --hierarchical (Support integer atom type ports in hierarchical verilation mode verilator#5748). [Bartłomiej Chmiel, Antmicro Ltd.]
• Support constrained random for arrays in structs (Support Constrained Random for Complex Structs with Array Elements verilator#5765) (Support Constrained Random for ArrayStruct (#5765) verilator#5802). [Yilou Wang]
• Support selects on arbitrary string expressions (Selects on arbitrary string expressions verilator#5773). [Krzysztof Bieganski, Antmicro Ltd.]
• Support side effects of form 'variable[index_function()]++'.
• Improve hierarchical DPI wrapper scheduling performance (Improve --hierarchical performance verilator#2583) (Improve protect-lib DPI wrapper scheduling in hierarchical verilation mode verilator#5734). [Bartłomiej Chmiel, Antmicro Ltd.]
• Improve VPI write errors (Vpi write improvements verilator#5712). [Andrew Nolte]
• Improve `resetall support (Support `resetall verilator#5728) (Added support for `resetall verilator#5730). [Ethan Sifferman]
• Optimize labels as final if block statements (Optimize labels as final if block statement verilator#5744).
• Optimize empty function definition bodies (Optimize empty function definition bodies verilator#5750).
• Optimize splitting trigger computation and dump (Split up trigger computation and dump functions. verilator#5798). [Geza Lore]
• Fix error message when call task as a function (Add warning/error when method function return value not used verilator#3089). [Matthew Ballance]
• Fix force VPI public signal visibility (VPI difference between Verilator v4 and v5 verilator#5225). [Frédéric Requin]
• Fix VPI iteration over hierarchy (Unable to iterate over hierarchy using VPI verilator#5314) (Fix hierarchy iteration verilator#5731). [Natan Kreimer]
• Fix constrained random for > 64-bit associative arrays (Support Associative Array's Basic Constrained Randomization (#5658) verilator#5670) (Fix constrained random for > 64-bit associative arrays (#5670) verilator#5682). [Yilou Wang]
• Fix mis-optimizing away $urandom ($urandom seeding verilator#5703). [Parker Schless]
• Fix packages with --public-depth 1 (Packages on public depth 1 verilator#5708). [Andrew Nolte]
• Fix V3Simulate constant reuse (Fix invalid lookup on array initializer (#5707) verilator#5709). [Geza Lore]
• Fix man pages what-is section (Use helpman's -n option to create man pages with useful whatis section verilator#5710). [Ahmed El-Mahmoudy]
• Fix pattern assignment to real inside struct (%p assignment pattern output broken for real inside struct verilator#5713).
• Fix %p format output for real inside struct (%p assignment pattern output broken for real inside struct verilator#5713).
• Fix segfault when only enum value referenced in package (Fix segfault when only enum value referenced in package verilator#5714). [Dan Katz]
• Fix BLKSEQ on suspendable processes (Do not emit BLKSEQ on suspendable process verilator#5722). [Krzysztof Bieganski, Antmicro Ltd.]
• Fix vpiDefName issues with non-inlined scopes and dpi conflicts (Fix vpiDefName issues with non-inlined scopes and dpi conflicts verilator#5732). [Andrew Nolte]
• Fix inlined expression with assignment under LHS of NBA (Internal Error: multiple write refs on LHS of NBA verilator#5736) (Fix AstExprStmt with assignment under LHS of NBA verilator#5740). [Geza Lore]
• Fix duplicate-named class variable equivalence (static objects equality verilator#5737).
• Fix -j ignored after -f (-f argument causes -j to be ineffective for build verilator#5749). [Luca Colagrande]
• Fix handling forced assigns in V3Life (Fix handling forced assigns in V3Life verilator#5757). [Bartłomiej Chmiel, Antmicro Ltd.]
• Fix VFileContent reference count (/*verilator lint_save/restore*/ breaks VFileContent reference counting verilator#5769) (Add FileLine copy ctor that increments the VFileContent reference count (#5769) verilator#5771). [Dave Sargeant]
• Fix ignoring joins in stringify in preprocessor (Ignore joins in stringify in preprocessor verilator#5777). [Krzysztof Bieganski, Antmicro Ltd.]
• Fix unpacked split_var (Fix split_var not enough split variables internal error verilator#5782) (Fix #5782 internal error of split_var verilator#5785). [Yutetsu TAKATSUKASA]
• Fix time import error on time parameters ($time import no units error on realtime parameter override with unit verilator#5786). [Luca Colagrande]
• Fix dpi context functions (Fix dpi context functions verilator#5788). [Ryszard Rozak, Antmicro Ltd.]
• Fix $monitor with dotted references (Error: Internal Error: adder_sub_tb1.txt:64:9: ../V3Scope.cpp:72: Can't locate varref scope $monitor verilator#5794). [Ahmed Elzeftawi]
• Fix parsing input wire with default and range (error: default value for packed wire port results in syntax error verilator#5800). [RJ Cunningham]
• Fix matching language extension options including dots.