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13010 Commits

Author SHA1 Message Date
Jannis Harder 364bcfb8f1 Example pass for the scopeinfo index/lookup utils 2024-02-06 18:01:26 +01:00
Jannis Harder 0d5b48de98 Add scopeinfo index/lookup utils 2024-02-06 18:01:26 +01:00
Jannis Harder bbe39762ad Ignore $scopeinfo in write_json 2024-02-06 17:51:29 +01:00
Jannis Harder f31fb95963 Ignore $scopeinfo in write_verilog 2024-02-06 17:51:29 +01:00
Jannis Harder 5ee8bebde4 Ignore $scopeinfo in write_spice 2024-02-06 17:51:29 +01:00
Jannis Harder 418bf61b8d Ignore $scopeinfo in write_smv 2024-02-06 17:51:29 +01:00
Jannis Harder 55d8425468 Ignore $scopeinfo in write_firrtl 2024-02-06 17:51:29 +01:00
Jannis Harder 59a60c76fe Ignore $scopeinfo in write_blif 2024-02-06 17:51:29 +01:00
Jannis Harder 5cfbc1604c Ignore $scopeinfo in write_edif 2024-02-06 17:51:29 +01:00
Jannis Harder 10d5d358d2 Ignore $scopeinfo in write_aiger 
While SBY's aiger flow already removes non-assertion driving logic,
there are some uses of write_aiger outside of SBY that could end up with
$scopeinfo cells, so we explicitly ignore them.

The write_btor backend works differently and due to the way it
recursively visits cells, it would never reach isolated cells like
$scopeinfo.
 2024-02-06 17:51:29 +01:00
Jannis Harder bfd9cf63db Ignore $scopeinfo in opt_merge 2024-02-06 17:51:29 +01:00
Jannis Harder 9288107f43 Test flatten and opt_clean's $scopeinfo handling 2024-02-06 17:51:29 +01:00
Jannis Harder 8902fc94b6 Suport $scopeinfo in flatten and opt_clean 2024-02-06 17:51:29 +01:00
Jannis Harder f728927307 Add builtin celltype $scopeinfo 
Only declares the cell interface, doesn't make anything use or
understand $scopeinfo yet.
 2024-02-06 17:51:24 +01:00
Miodrag Milanović 269c50f90e
Merge pull request #4130 from jix/hierarchy-defer-notop 
hierarchy: Without a known top module, derive all deferred modules
 2024-02-06 12:08:01 +01:00
Miodrag Milanovic d00843d436 Add -nordff to test 2024-02-06 10:36:30 +01:00
Jannis Harder 0470cbb00d hierarchy: Without a known top module, derive all deferred modules 
This fixes hierarchy when used with cell libraries that were loaded with
-defer and also makes more of the hierarchy visible to the auto-top
heuristic.
 2024-02-06 10:31:40 +01:00
Miodrag Milanović 5d3e4c5c7a
Merge pull request #4182 from QuantamHD/fix_aldff 
verific: Improves aldff inference in verific importer
 2024-02-06 08:19:43 +01:00
github-actions[bot] 1df2a209e5 Bump version 2024-02-06 00:15:26 +00:00
Claire Xen 1b73b5beb7
Merge pull request #4174 from YosysHQ/claire/overwrite 
Add API to overwrite existing pass from plugin
 2024-02-05 23:49:24 +01:00
Martin Povišer 57db87c99f py_wrap_generator: Handle const-qualified callbacks 2024-02-05 17:25:55 +01:00
N. Engelhardt 2422dd6845
Merge pull request #4153 from Coloquinte/blif_delay_constraints 
Issue a warning instead of a syntax error for blif delay constraints
 2024-02-05 15:14:05 +01:00
N. Engelhardt f96e27ac14
Merge pull request #4123 from povik/clean-opt_clean 
opt_clean: Add commentary, remove dead code
 2024-02-05 15:08:34 +01:00
Ethan Mahintorabi ff578ecabd
fix formatting 
Signed-off-by: Ethan Mahintorabi <ethanmoon@google.com>
 2024-02-05 07:23:04 +00:00
Ethan Mahintorabi bc66dfd9ea
verific: Fixes incorrect aldff inference in verific importer 
The following SV module at HEAD imported with verific,

```systemverilog
    module my_module(
      input logic [4:0] a,
      input logic clk,
      input logic enable,
      output logic [4:0] z
    );

    reg [4:0] pipeline_register;
    always @(posedge clk) begin
      pipeline_register <= enable ? a : pipeline_register;
    end
    assign z = pipeline_register;

    endmodule : my_module

```

results in the following output verilog

```systemverilog
/* Generated by 0.36 */

(* top =  1  *)
(* hdlname = "my_module" *)
(* src = "/tmp/temp_directory_zTwd0l/my_input.v:2.12-2.21" *)
module my_module(clk, enable, a, z);
  wire [4:0] _0_;
  (* src = "/tmp/temp_directory_zTwd0l/my_input.v:3.25-3.26" *)
  input [4:0] a;
  wire [4:0] a;
  (* src = "/tmp/temp_directory_zTwd0l/my_input.v:4.19-4.22" *)
  input clk;
  wire clk;
  (* src = "/tmp/temp_directory_zTwd0l/my_input.v:5.19-5.25" *)
  input enable;
  wire enable;
  (* src = "/tmp/temp_directory_zTwd0l/my_input.v:6.26-6.27" *)
  output [4:0] z;
  wire [4:0] z;
  (* src = "/tmp/temp_directory_zTwd0l/my_input.v:10.12-12.8" *)
  \$aldff  #(
    .ALOAD_POLARITY(32'd1),
    .CLK_POLARITY(32'd1),
    .WIDTH(32'd5)
  ) _1_ (
    .AD(5'hxx),
    .ALOAD(1'h0),
    .CLK(clk),
    .D(_0_),
    .Q(z)
  );
  (* src = "/tmp/temp_directory_zTwd0l/my_input.v:11.28-11.58" *)
  \$mux  #(
    .WIDTH(32'd5)
  ) _2_ (
    .A(z),
    .B(a),
    .S(enable),
    .Y(_0_)
  );
endmodule
```

Yosys is incorrectly infering aldffs due to an incorrect conversion
of logical 1 and 0 SigBits.

My PR unifies the conversion of Verific::Net objects into SigBits using
Yosys' internal representation of special signals like 0,1,x,z. After
my PR these signals are correctly converted into DFFs.

Signed-off-by: Ethan Mahintorabi <ethanmoon@google.com>
 2024-02-05 07:10:25 +00:00
github-actions[bot] f5420d720c Bump version 2024-02-04 00:17:08 +00:00
Catherine 3caac53827
Merge pull request #4128 from whitequark/check-cell 
Add `$check` cell to represent assertions with messages
 2024-02-03 18:39:00 +00:00
Jannis Harder ffb82df33c Additional tests for FV $check compatibility 2024-02-02 16:07:10 +01:00
Catherine c7bf0e3b8f Add new `$check` cell to represent assertions with a message. 2024-02-01 20:10:39 +01:00
Jannis Harder e1a59ba80b async2sync, clk2fflogic: Add support for $check and $print cells 2024-02-01 20:10:39 +01:00
Jannis Harder 6c4902313b chformal: Support $check cells and add chformal -lower 
This adds support for `$check` cells in chformal and adds a `-lower`
mode which converts `$check` cells into `$assert` etc. cells with a
`$print` cell to output the `$check` message.
 2024-02-01 20:10:39 +01:00
Jannis Harder 331ac5285f tests: Run async2sync before sat and/or sim to handle $check cells 
Right now neither `sat` nor `sim` have support for the `$check` cell.
For formal verification it is a good idea to always run either
async2sync or clk2fflogic which will (in a future commit) lower `$check`
to `$assert`, etc.

While `sim` should eventually support `$check` directly, using
`async2sync` is ok for the current tests that use `sim`, so this commit
also runs `async2sync` before running sim on designs containing
assertions.
 2024-02-01 16:14:11 +01:00
Jannis Harder 2baa578d94 Remove too fragile smtlib2_module test 
This compares the write_smt2 output pretty much verbatim, which contains
auto generated private names and fixes an arbitrary ordering. The tested
functionality is also covered by SBY tests which actually interpret the
write_smt2 output using an SMT solver and thus are much more robust, so
we can safely remove this test.
 2024-02-01 16:14:11 +01:00
N. Engelhardt 9f27923782
Merge pull request #4173 from YosysHQ/verific_complex 
verific: add option to skip simplifying complex ports
 2024-02-01 12:08:40 +01:00
github-actions[bot] bbb8ad5997 Bump version 2024-02-01 00:16:28 +00:00
Martin Povišer 6c4bc5aae5
Merge pull request #4165 from phsauter/shiftadd-offset-fix 
peepopt: handle offset too large in `shiftadd`
 2024-01-31 13:47:39 +01:00
Philippe Sauter cbdf9b2f9c peepopt: handle empty src-attribute in shiftadd 2024-01-31 13:07:01 +01:00
github-actions[bot] 3bc83c6533 Bump version 2024-01-31 00:15:44 +00:00
Claire Xenia Wolf 4fa314c0bd Add API to overwrite existing pass from plugin 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2024-01-30 17:51:11 +01:00
Miodrag Milanovic db1de5fe5d verific: add option to skip simplifying complex ports 2024-01-30 16:33:44 +01:00
Martin Povišer 3537976477
Merge pull request #4163 from QuantamHD/fix_write_verilog 
write_verilog: Making sure BUF cells are converted to expressions.
 2024-01-30 10:58:42 +01:00
Philippe Sauter 7f8b6dd982 peepopt: delete unnecessary comment in shiftadd 2024-01-30 09:51:21 +01:00
Miodrag Milanović b572e1af9f
Merge pull request #4171 from yrabbit/sdp-wre 
gowin: Fix SDP write enable port.
 2024-01-30 08:49:50 +01:00
YRabbit 79c5a06673 gowin: Fix SDP write enable port. 
This primitive does not have a separate WRE port, so we regulate writing
using Clock Enable.

Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
 2024-01-30 17:06:59 +10:00
Ethan Mahintorabi 3076875fff
removing call to dump_attributes to remove possibility of generating invalid verilog 
Signed-off-by: Ethan Mahintorabi <ethanmoon@google.com>
 2024-01-30 00:56:07 +00:00
github-actions[bot] 112bcb0907 Bump version 2024-01-30 00:15:11 +00:00
N. Engelhardt 027cb31e9d
Merge pull request #4161 from YosysHQ/nak/add_sig_extract_asserts 
SigSpec/SigChunk::extract(): assert offset/length are not out of range
 2024-01-29 16:11:01 +01:00
Martin Povišer 2f4dd9961c
Merge pull request #4162 from jix/sim-print-sampling 
sim: Bring $print trigger/sampling semantics in line with FFs
 2024-01-29 15:39:46 +01:00
N. Engelhardt a9fe85c2d0
Merge pull request #4141 from YosysHQ/small_build 
Make small build links, and support Verific small build
 2024-01-29 15:17:39 +01:00
Jannis Harder fd838a99ce
Merge pull request #4140 from jix/writer_aiger_sccs 
write_aiger: Detect and error out on combinational loops
 2024-01-29 15:14:54 +01:00