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444 commits

Author SHA1 Message Date
Miodrag Milanovic
7bec332b68 SV + VHDL with RTL support 2024-06-17 13:29:11 +02:00
Miodrag Milanovic
25d50bb2af VHDL only build support 2024-06-17 13:29:11 +02:00
Miodrag Milanovic
54bf9ccf06 Add initial support for Verific without additional YosysHQ patch 2024-06-17 13:29:11 +02:00
Mike Inouye
b0ab1cf8c3 Fix memory leak in verific file parsing. 
Signed-off-by: Mike Inouye <mikeinouye@google.com>
 2024-06-07 22:51:28 +00:00
Ethan Mahintorabi
82a4a87c97
Fixes error with vector indicies of the form [2:7] [-12:7] 
Make sure that we correctly adjust the value to align it to a zero
indexed list with lsb = 0

Signed-off-by: Ethan Mahintorabi <ethanmoon@google.com>
 2024-05-08 20:29:47 +00:00
Ethan Mahintorabi
c039da2ec1
renames variables for more code clairty 
Signed-off-by: Ethan Mahintorabi <ethanmoon@google.com>
 2024-05-08 01:09:52 +00:00
Ethan Mahintorabi
a2c1b268d9
frontend: Fixes verific import around range order 
Test Case
```
module packed_dimensions_range_ordering (
    input  wire [0:4-1] in,
    output wire [4-1:0] out
);
  assign out = in;
endmodule : packed_dimensions_range_ordering

module instanciates_packed_dimensions_range_ordering (
    input  wire [4-1:0] in,
    output wire [4-1:0] out
);
  packed_dimensions_range_ordering U0 (
      .in (in),
      .out(out)
  );
endmodule : instanciates_packed_dimensions_range_ordering
```

```
// with verific, does not pass formal
module instanciates_packed_dimensions_range_ordering(in, out);
  input [3:0] in;
  wire [3:0] in;
  output [3:0] out;
  wire [3:0] out;

  assign out = { in[0], in[1], in[2], in[3] };
endmodule

// with surelog, passes formal
module instanciates_packed_dimensions_range_ordering(in, out);
  input [3:0] in;
  wire [3:0] in;
  output [3:0] out;
  wire [3:0] out;

  assign out = in;
endmodule
```

Signed-off-by: Ethan Mahintorabi <ethanmoon@google.com>
 2024-05-08 01:00:06 +00:00
Miodrag Milanovic
af94123730 verific: expose library name as module attribute 2024-04-15 17:01:07 +02:00
N. Engelhardt
3d5e23e585
Merge pull request #4302 from YosysHQ/vhdl_2019 
Verific support for VHDL 2019
 2024-04-09 18:25:05 +02:00
Miodrag Milanovic
f536de0e0e Verific support for VHDL 2019 2024-03-28 13:21:55 +01:00
Miodrag Milanovic
4367e176fb code split and cleanup 2024-03-19 09:15:04 +01:00
Miodrag Milanovic
9eebc80170 handle standard types 2024-03-18 10:35:01 +01:00
Miodrag Milanovic
7c09fa572e real number handling and default to string 2024-03-14 10:37:56 +01:00
Miodrag Milanovic
4279cea33a improve handling VHDL constants 2024-03-14 10:37:56 +01:00
Miodrag Milanovic
858eae5572 verific_const: convert VHDL values to RTLIL consts 2024-03-14 10:37:56 +01:00
Miodrag Milanovic
ae7daf99f4 Verific: Add attributes to module instantiation 2024-02-12 09:53:47 +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
Miodrag Milanovic
db1de5fe5d verific: add option to skip simplifying complex ports 2024-01-30 16:33:44 +01:00
Miodrag Milanovic
1764c0ee3c Fix verific clocking when no driver exist 2024-01-18 08:47:04 +01:00
Miodrag Milanovic
96fecf0716 Revert "Add attributes to module instantiation" 
This reverts commit 8f207eed1b.
 2023-12-04 16:37:01 +01:00
Miodrag Milanovic
8f207eed1b Add attributes to module instantiation 2023-11-23 11:01:49 +01:00
N. Engelhardt
5fb1264db5 verific: don't try to import attributes from nullptr 2023-11-14 15:05:24 +01:00
N. Engelhardt
93a426cbbf
Merge pull request #4008 from nakengelhardt/mem_libmap_data_attr 
memory_libmap: look for ram_style attributes on surrounding signals
 2023-11-06 16:25:38 +01:00
Miodrag Milanovic
f06d56d224 Handling non-existing location in verific logs 2023-11-03 08:06:16 +01:00
Miodrag Milanovic
4eb18e1f07 change verific log callback api 2023-11-01 08:13:27 +01:00
N. Engelhardt
833b67af80 verific: import attributes on ports 
Co-authored-by: Miodrag Milanović <mmicko@gmail.com>
 2023-10-20 18:31:41 +02:00
Miodrag Milanovic
d473a207a1 Preserve VHDL architecture name in attribute 2023-10-12 09:17:06 +02:00
Jannis Harder
4ed708836a verific: Use CellBaseName to identify top modules 2023-10-10 11:51:16 +02:00
Miodrag Milanović
a54e6f2d1f
Merge pull request #3984 from YosysHQ/module_hdlname 
verific: save original module name
 2023-10-05 19:41:00 +02:00
Jannis Harder
47a4b790f8 verific: Pass top modules to static elaboration when using hierarchy 2023-10-05 16:51:49 +02:00
Jannis Harder
23b9e61c47 verific: Pass list of top modules to static elaboration 2023-10-05 16:51:49 +02:00
Miodrag Milanovic
268fe92d22 verific: save original module name 2023-10-05 11:22:40 +02:00
Jannis Harder
563a56d9ff verific: Improve interaction between -L, -work and bind statements 2023-10-03 15:52:01 +02:00
Miodrag Milanovic
f193ebdded Verific: add default parameters to modules 2023-09-27 16:57:18 +02:00
Miodrag Milanovic
18855f23ce Set src attribute for verific with full info 2023-09-19 12:00:10 +02:00
Jannis Harder
0e8a4adb59 verific: Update YOSYSHQ_VERIFIC_API_VERSION 2023-09-13 11:32:36 +02:00
Miodrag Milanovic
27ac912709 Support import of $future_ff 2023-09-13 11:32:36 +02:00
Miodrag Milanovic
9c255c98b1 unescape string tag attribute 2023-09-13 11:32:36 +02:00
Miodrag Milanovic
54050a8c16 Basic support for tag primitives 2023-09-13 11:32:36 +02:00
Miodrag Milanovic
7b134c2a8c verific - respect order of read and write for rams 2023-09-12 11:56:15 +02:00
Miodrag Milanovic
19d5293657 when blackboxing no need to know missing modules 2023-07-31 09:18:54 +02:00
Miodrag Milanovic
372760af57 spaces to tabs 2023-07-25 09:40:30 +02:00
Miodrag Milanovic
3989181cd6 Add ability to blackbox modules/units from file while reading with verific 2023-07-25 09:40:30 +02:00
N. Engelhardt
21686f0d9d verific: import src attribute on $memrd/$memwr cells 2023-06-23 19:41:36 +02:00
Miodrag Milanovic
aff0065646 Use defaultvalue for init values of input ports 2023-06-21 13:21:34 +02:00
Miodrag Milanovic
75cf79588e Add ability for user plugin to add new verific log callback 2023-06-12 10:01:01 +02:00
Miodrag Milanovic
ecd289c100 Fix importing parametrized VHDL entity 2023-05-23 08:25:08 +02:00
Jannis Harder
3cbca5064c verific: Handle non-seq properties with VerificClocking conditions 2023-04-21 17:19:42 +02:00
Jannis Harder
ec47bf1745 verific: Handle conditions when using sva_at_only in VerificClocking 
This handles conditions on clocked concurrent assertions in unclocked
procedural contexts.
 2023-04-21 16:51:42 +02:00