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310 Commits

Author SHA1 Message Date
Clifford Wolf c863796e9f Fix "verific -extnets" for more complex situations 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-03-26 14:17:46 +01:00
Niels Moseley 3b3b77291a Updated the liberty parser to accept [A:B] ranges (AST has not been updated). Liberty parser now also accepts key : value pair lines that do not end in ';'. 2019-03-24 22:54:18 +01:00
Eddie Hung 02e8dc7ad2 Merge https://github.com/YosysHQ/yosys into read_aiger 2019-03-19 08:52:31 -07:00
Zachary Snow a5f4b83637 fix local name resolution in prefix constructs 2019-03-18 20:43:20 -04:00
Clifford Wolf a330c68363 Fix handling of task output ports in clocked always blocks, fixes #857 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-03-07 22:44:37 -08:00
Jim Lawson d6c4dfb902 Ensure fid() calls make_id() for consistency; tests/simple/dff_init.v fails 
Mark dff_init.v as expected to fail since it uses "initial value".
 2019-03-04 13:37:23 -08:00
Clifford Wolf b84febafd7 Hotfix for "make test" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-02-28 20:26:54 -08:00
Clifford Wolf 241901461a Add "write_verilog -siminit" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-02-28 15:03:03 -08:00
Jim Lawson 171c425cf9 Fix FIRRTL to Verilog process instance subfield assignment. 
Don't emit subfield assignments: bits(x, y, z) <= ... - but instead, add them to the reverse-wire-map where they'll be treated at the end of the module.
Enable tests which were disabled due to incorrect treatment of subfields.
Assume the `$firrtl2verilog` variable contains any additional switches to control verilog generation (i.e. `--no-dedup -X mverilog`)
 2019-02-25 16:18:13 -08:00
Clifford Wolf c118f9a377
Merge pull request #812 from ucb-bar/arrayhierarchyfixes 
Define basic_cell_type() function and use it to derive the cell type …
 2019-02-24 11:39:13 -08:00
Clifford Wolf da14bc8524
Merge pull request #824 from litghost/fix_reduce_on_ff 
Fix WREDUCE on FF not fixing ARST_VALUE parameter.
 2019-02-24 11:29:14 -08:00
Clifford Wolf 1816fe06af Fix handling of defparam for when default_nettype is none 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-02-24 20:09:41 +01:00
Jim Lawson 71bcc4c644 Address requested changes - don't require non-$ name. 
Suppress warning if name does begin with a `$`.
Fix hierachy tests so they have something to grep.
Announce hierarchy test types.
 2019-02-22 16:06:10 -08:00
Keith Rothman 25680f6a07 Fix WREDUCE on FF not fixing ARST_VALUE parameter. 
Adds test case that fails without code change.

Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
 2019-02-22 10:30:42 -08:00
Eddie Hung 8e789da74c Revert "Add -B option to autotest.sh to append to backend_opts" 
This reverts commit 281f2aadca.
 2019-02-21 09:22:29 -08:00
Eddie Hung 4035ec8933 Remove simple_defparam tests 2019-02-20 15:45:45 -08:00
Jim Lawson 5c4a72c43e Fix normal (non-array) hierarchy -auto-top. 
Add simple test.
 2019-02-19 14:35:15 -08:00
Eddie Hung 430a7548bc One more merge conflict 2019-02-17 11:50:55 -08:00
Eddie Hung 17cd5f759f Merge https://github.com/YosysHQ/yosys into dff_init 2019-02-17 11:49:06 -08:00
Eddie Hung 03a533d102 Merge https://github.com/YosysHQ/yosys into read_aiger 2019-02-17 11:44:01 -08:00
Jim Lawson 34153adef4 Append (instead of over-writing) EXTRA_FLAGS 2019-02-15 11:56:51 -08:00
Jim Lawson fc1c9aa11f Update cells supported for verilog to FIRRTL conversion. 
Issue warning messages for missing parameterized modules and attempts to set initial values.
Replace simple "if (cell-type)" with "else if" chain.
Fix FIRRTL shift handling.
Add support for parameterized modules, $shift, $shiftx.
Handle default output file.
Deal with no top module.
Automatically run pmuxtree pass.
Allow EXTRA_FLAGS and SEED parameters to be set in the environment for tests/tools/autotest.mk.
Support FIRRTL regression testing in tests/tools/autotest.sh
Add xfirrtl files to test directories to exclude files from FIRRTL regression tests that are known to fail.
 2019-02-15 11:14:17 -08:00
Eddie Hung 587872236e Support and differentiate between ASCII and binary AIG testing 2019-02-08 12:41:59 -08:00
Eddie Hung 4e6c5e4672 Add binary AIGs converted from AAG 2019-02-08 11:41:25 -08:00
Eddie Hung 4167b15de5 Merge branch 'dff_init' of https://github.com/eddiehung/yosys into xaig 2019-02-06 14:31:11 -08:00
Eddie Hung 3f87cf86cc Revert most of autotest.sh; for non *.v use Yosys to translate 2019-02-06 14:30:19 -08:00
Eddie Hung 115883f467 Add tests for simple cases using defparam 2019-02-06 14:15:17 -08:00
Eddie Hung 281f2aadca Add -B option to autotest.sh to append to backend_opts 2019-02-06 14:14:55 -08:00
Eddie Hung 03cf1532a7 Extend testcase 2019-02-06 14:02:11 -08:00
Eddie Hung a9674bd2ec Add testcase 2019-02-06 12:49:30 -08:00
Eddie Hung fdd55d064b Rename ASCII tests 2019-02-06 12:20:36 -08:00
Eddie Hung 3f0bb441f8 Add tests 2019-02-04 16:46:24 -08:00
Clifford Wolf 9666cca9dd Remove asicworld tests for (unsupported) switch-level modelling 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-01-27 09:17:02 +01:00
Clifford Wolf 0fc6e2bfcf
Merge pull request #770 from whitequark/opt_expr_cmp 
opt_expr: refactor and improve simplification of comparisons
 2019-01-02 17:34:04 +01:00
whitequark bf8db55ef3 opt_expr: improve simplification of comparisons with large constants. 
The idea behind this simplification is that a N-bit signal X being
compared with an M-bit constant where M>N and the constant has Nth
or higher bit set, it either always succeeds or always fails.

However, the existing implementation only worked with one-hot signals
for some reason. It also printed incorrect messages.

This commit adjusts the simplification to have as much power as
possible, and fixes other bugs.
 2019-01-02 15:45:28 +00:00
whitequark a91892bba4 cmp2lut: new techmap pass. 2019-01-02 07:53:31 +00:00
whitequark 4fd458290c opt_expr: refactor simplification of unsigned X<onehot and X>=onehot. NFCI. 2019-01-02 05:11:29 +00:00
whitequark 9e9846a6ea opt_expr: refactor simplification of signed X>=0 and X<0. NFCI. 2019-01-02 03:01:25 +00:00
whitequark 8e53d2e0bf opt_expr: simplify any unsigned comparisons with all-0 and all-1. 
Before this commit, only unsigned comparisons with all-0 would be
simplified. This commit also makes the code handling such comparisons
to be more rigorous and not abort on unexpected input.
 2019-01-02 02:45:49 +00:00
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