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271 Commits

Author SHA1 Message Date
whitequark 42c356c49c opt_lut: eliminate LUTs evaluating to constants or inputs. 2018-12-31 23:55:40 +00:00
Larry Doolittle 99706b3bf4 Squelch a little more trailing whitespace 2018-12-29 12:46:54 +01:00
Clifford Wolf 2a681909df
Merge pull request #724 from whitequark/equiv_opt 
equiv_opt: new command, for verifying optimization passes
 2018-12-16 15:54:26 +01:00
whitequark 7ff5a9db2d equiv_opt: pass -D EQUIV when techmapping. 
This allows avoiding techmap crashes e.g. because of large memories
in white-box cell models.
 2018-12-07 17:20:34 +00:00
whitequark c38ea9ae65 equiv_opt: new command, for verifying optimization passes. 2018-12-07 17:20:34 +00:00
whitequark 7ec740b7ad opt_lut: leave intact LUTs with cascade feeding module outputs. 2018-12-07 17:13:52 +00:00
Clifford Wolf 7d1088afc4 Add missing .gitignore 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-12-06 07:29:37 +01:00
whitequark 9ef078848a gate2lut: new techlib, for converting Yosys gates to FPGA LUTs. 2018-12-05 17:13:27 +00:00
whitequark 45cb6200af opt_lut: add -dlogic, to avoid disturbing logic such as carry chains. 2018-12-05 16:30:37 +00:00
whitequark 9e072ec21f opt_lut: new pass, to combine LUTs for tighter packing. 2018-12-05 16:30:37 +00:00
Clifford Wolf 6cd5b8b76b
Merge pull request #679 from udif/pr_syntax_error 
More meaningful SystemVerilog/Verilog parser error messages
 2018-10-25 13:18:59 +02:00
Udi Finkelstein 536ae16c3a Rename the generic "Syntax error" message from the Verilog/SystemVerilog parser into unique, 
meaningful info on the error.
Also add 13 compilation examples that triggers each of these messages.
 2018-10-25 02:37:56 +03:00
Ruben Undheim 397dfccb30 Support for SystemVerilog interfaces as a port in the top level module + test case 2018-10-20 11:58:25 +02:00
Ruben Undheim d5aac2650f Basic test for checking correct synthesis of SystemVerilog interfaces 2018-10-18 22:40:53 +02:00
Ruben Undheim 458a94059e Support for 'modports' for System Verilog interfaces 2018-10-12 21:11:48 +02:00
Ruben Undheim 75009ada3c Synthesis support for SystemVerilog interfaces 
This time doing the changes mostly in AST before RTLIL generation
 2018-10-12 21:11:36 +02:00
Clifford Wolf 3d27c1cc80
Merge pull request #513 from udif/pr_reg_wire_error 
Add error checking for reg/wire/logic misuse - PR now passes 'make test' (plus a new test)
 2018-08-15 13:35:41 +02:00
Udi Finkelstein 106af19b69 Fixed typo (sikp -> skip) 2018-06-05 22:41:27 +03:00
Udi Finkelstein 73d426bc87 Modified errors into warnings 
No longer false warnings for memories and assertions
 2018-06-05 18:03:22 +03:00
Udi Finkelstein 80d9d15f1c reg_wire_error test needs the -sv flag so it is run via a script so it had to be moved out of the tests/simple dir that only runs Verilog files 2018-06-05 18:00:06 +03:00
Johnny Sorocil 0295213bec autotest.sh: Change from /bin/bash to /usr/bin/env bash 
This enables running tests on Unix systems which are not shipped with
bash installed in /bin/bash (eg *BSDs and Solaris).
 2018-05-06 15:26:23 +02:00
Clifford Wolf 5e49ee5c2d Fix tests/simple/specify.v 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-03-27 14:34:00 +02:00
Udi Finkelstein 6378e2cd46 First draft of Verilog parser support for specify blocks and parameters. 
The only functionality of this code at the moment is to accept correct specify syntax and ignore it.
No part of the specify block is added to the AST
 2018-03-27 14:34:00 +02:00
Udi Finkelstein 2b9c75f8e3 This PR should be the base for discussion, do not merge it yet! 
It correctly detects reg/wire mix and incorrect use on blocking,nonblocking assignments within blocks and assign statements.

What it DOES'T do:
Detect registers connected to output ports of instances.

Where it FAILS:
memorty nonblocking assignments causes spurious (I assume??) errors on yosys-generated "_ADDR", "_DATA", "EN" signals.

You can test it with tests/simple/reg_wire_error.v (look inside for the comments to enable/disable specific lines)
 2018-03-11 23:09:34 +02:00
Clifford Wolf 25e33d7ab8 Major redesign of Verific SVA importer 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-02-27 20:33:15 +01:00
Clifford Wolf 6d12c83d36 Add support for SVA throughout via Verific 2018-02-21 13:09:47 +01:00
Clifford Wolf 5c6247dfa6 Add support for SVA sequence concatenation ranges via verific 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-02-18 16:35:06 +01:00
Clifford Wolf 9d963cd29c Add support for SVA until statements via Verific 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-02-18 14:57:52 +01:00
Clifford Wolf bc8ab3ab44 Fix verific PRIM_SVA_AT handling in properties with PRIM_SVA_DISABLE_IFF 2018-02-15 15:26:37 +01:00
Clifford Wolf baddb017fe Remove PSL example from tests/sva/ 2017-10-20 13:16:24 +02:00
Clifford Wolf dbfd8460a9 Allow $size and $bits in verilog mode, actually check test case 2017-09-29 11:56:43 +02:00
Udi Finkelstein e951ac0dfb $size() now works correctly for all cases! 
It seems the issues was that AST_MULTIRANGE is converted into a multirange_dimensions[] array on the AST_MEMORY node directly.
 2017-09-26 20:34:24 +03:00
Udi Finkelstein 6ddc6a7af4 $size() seems to work now with or without the optional parameter. 
Multidimensional arrays still don't work. I suspect the problem is that the array is flattened into a 1D array before $size() is evaluated.
 2017-09-26 19:18:25 +03:00
Udi Finkelstein 2dea42e903 Added $bits() for memories as well. 2017-09-26 09:11:25 +03:00
Udi Finkelstein 17f8b41605 $size() now works with memories as well! 2017-09-26 08:36:45 +03:00
Udi Finkelstein 64eb8f29ad Add $size() function. At the moment it works only on expressions, not on memories. 2017-09-26 06:25:42 +03:00
Clifford Wolf 4cf890dac1 Add simple VHDL+PSL example 2017-07-28 17:39:43 +02:00
Clifford Wolf c1cfca8f54 Improve Verific SVA importer 2017-07-27 14:05:09 +02:00
Clifford Wolf 877ff1f75e Add counter.sv SVA test 2017-07-27 12:37:16 +02:00
Clifford Wolf b24f737759 Improve SVA tests, add Makefile and scripts 2017-07-27 11:42:05 +02:00
Clifford Wolf 84f15260b5 Add more SVA test cases for future Verific work 2017-07-22 16:35:46 +02:00
Clifford Wolf 024ba310ec Add some simple SVA test cases for future Verific work 2017-07-22 12:31:08 +02:00
Larry Doolittle 2021ddecb3 Squelch trailing whitespace 2017-04-12 15:11:09 +02:00
Clifford Wolf 080004b19a Fixed typo in tests/simple/arraycells.v 2017-01-04 12:39:01 +01:00
Clifford Wolf 5c96982522 Build hotfix in tests/unit/Makefile 2016-12-11 10:58:49 +01:00
rodrigosiqueira b932e2355d Improved unit test structure 
Signed-off-by: rodrigosiqueira <rodrigosiqueiramelo@gmail.com>
Signed-off-by: chaws <18oliveira.charles@gmail.com>

* Merged run-all-unitest inside unit-test target
* Fixed Makefile dependencies
* Updated documentation about unit test
 2016-12-10 18:21:56 -02:00
rodrigosiqueira e0152319f5 Added required structure to implement unit tests 
Added modifications inside the main Makefile to refers the unit test Makefile.
Added separated Makefile only for compiling unit tests.
Added simple example of unit test.

Signed-off-by: Charles Oliveira <18oliveira.charles@gmail.com>
Signed-off-by: Pablo Alejandro <pabloabur@usp.br>
Signed-off-by: Rodrigo Siqueira <siqueira@ime.usp.br>
 2016-12-04 11:34:27 -02:00
Clifford Wolf 70d7a02cae Added support for hierarchical defparams 2016-11-15 13:35:19 +01:00
Clifford Wolf 1e3c2bff72 Added support for (single-clock) transparent memories to bram tests 2016-11-01 10:03:13 +01:00
Clifford Wolf 4a981a3bd8 Fixed "make test" for git head of iverilog 2016-10-11 12:12:32 +02:00