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995 commits

Author SHA1 Message Date
whitequark
fc28bf55aa ice40: add support for both 1364.1 and LSE RAM/ROM attributes. 
This commit tries to carefully follow the documented behavior of LSE
and Synplify. It will use `syn_ramstyle` attribute if there are any
write ports, and `syn_romstyle` attribute otherwise.
  * LSE supports both `syn_ramstyle` and `syn_romstyle`.
  * Synplify only supports `syn_ramstyle`, with same values as LSE.
  * Synplify also supports `syn_rw_conflict_logic`, which is not
    documented as supported for LSE.

Limitations of the Yosys implementation:
  * LSE/Synplify appear to interpret attribute values insensitive
    to case. There is currently no way to do this in Yosys (attrmap
    can only change case of attribute names).
  * LSE/Synplify support `syn_ramstyle="block_ram,no_rw_check"`
    syntax to turn off insertion of transparency logic. There is
    currently no way to support multiple valued attributes in
    memory_bram. It is also not clear if that is a good idea, since
    it can cause sim/synth mismatches.
  * LSE/Synplify/1364.1 support block ROM inference from full case
    statements. Yosys does not currently perform this transformation.
  * LSE/Synplify propagate `syn_ramstyle`/`syn_romstyle` attributes
    from the module to the inner memories. There is currently no way
    to do this in Yosys (attrmvcp only works on cells and wires).
 2020-02-06 14:58:20 +00:00
whitequark
29d130dee9 ice40: remove impossible test. 
iCE40 does not have LUTRAM. This was erroneously added in commit
caab66111e, and tested for BRAM,
essentially a duplicate of the "dpram.ys" test.
 2020-02-06 14:58:20 +00:00
Eddie Hung
4c1d3a126d shiftx2mux: fix select out of bounds 2020-02-05 16:41:09 -08:00
Eddie Hung
505557e93e
Merge pull request #1576 from YosysHQ/eddie/opt_merge_init 
opt_merge: discard \init of '$' cells with 'Q' port when merging
 2020-02-05 14:56:26 -08:00
Eddie Hung
6eb7e925a1
Merge pull request #1650 from YosysHQ/eddie/shiftx2mux 
techmap LSB-first for compatible $shift/$shiftx cells
 2020-02-05 14:55:57 -08:00
Eddie Hung
0b308c6835 abc9_ops: -reintegrate to use derived_type for box_ports 2020-02-05 14:46:48 -08:00
Eddie Hung
b6a1f627b5 Merge remote-tracking branch 'origin/master' into eddie/shiftx2mux 2020-02-05 10:47:31 -08:00
Eddie Hung
5ebdc0f8e0
Merge pull request #1638 from YosysHQ/eddie/fix1631 
clk2fflogic: work for bit-level $_DFF_* and $_DFFSR_*
 2020-02-05 19:31:18 +01:00
Marcelina Kościelnicka
34d2fbd2f9
Add opt_lut_ins pass. (#1673) 2020-02-03 14:57:17 +01:00
David Shah
ebe1d7d5ab sv: More tests for wildcard port connections 
Signed-off-by: David Shah <dave@ds0.me>
 2020-02-02 16:12:33 +00:00
David Shah
7e741714df hierarchy: Correct handling of wildcard port connections with default values 
Signed-off-by: David Shah <dave@ds0.me>
 2020-02-02 16:12:33 +00:00
David Shah
a210675d71 sv: Add tests for wildcard port connections 
Signed-off-by: David Shah <dave@ds0.me>
 2020-02-02 16:12:33 +00:00
David Shah
9f5613100b
Merge pull request #1647 from YosysHQ/dave/sprintf 
ast: Add support for $sformatf system function
 2020-02-02 14:53:46 +00:00
Miodrag Milanović
71d148bcaa
Merge pull request #1559 from YosysHQ/efinix_test_fix 
Fix for non-deterministic test
 2020-01-29 11:18:06 +01:00
Eddie Hung
d004953772 Add "help -all" and "help -celltypes" sanity test 2020-01-28 18:11:34 -08:00
Eddie Hung
a855f23f22 Merge remote-tracking branch 'origin/master' into eddie/opt_merge_init 2020-01-28 12:46:18 -08:00
Eddie Hung
7939727d14
Merge pull request #1660 from YosysHQ/eddie/abc9_unpermute_luts 
Unpermute LUT ordering for ice40/ecp5/xilinx
 2020-01-28 11:55:51 -08:00
Miodrag Milanovic
94191a93dd Updated test to use assert-max 2020-01-28 18:26:10 +01:00
Claire Wolf
4ddaa70fd6
Merge pull request #1567 from YosysHQ/eddie/sat_init_warning 
sat: suppress 'Warning: ignoring initial value on non-register: ...' when init[i] = 1'bx
 2020-01-28 17:40:28 +01:00
N. Engelhardt
086c133ea5
Merge pull request #1573 from YosysHQ/eddie/xilinx_tristate 
synth_xilinx: error out if tristate without '-iopad'
 2020-01-28 17:24:54 +01:00
Eddie Hung
cfb0366a18 Import tests from #1628 2020-01-27 13:56:16 -08:00
Eddie Hung
48f3f5213e
Merge pull request #1619 from YosysHQ/eddie/abc9_refactor 
Refactor `abc9` pass
 2020-01-27 13:29:15 -08:00
Eddie Hung
af8281d2f5
Merge pull request #1656 from YosysHQ/eddie/ice40_abc9_warnings 
ice40: reduce ABC9 internal fanout warnings with a param for CI->I3
 2020-01-27 09:54:04 -08:00
Eddie Hung
b178761551 ice40: reduce ABC9 internal fanout warnings with a param for CI->I3 2020-01-24 11:59:48 -08:00
Eddie Hung
2d795fb8c0 simple_abc9 tests to discard whitebox before write for sim 2020-01-23 22:07:43 -08:00
Eddie Hung
dca1c806ec simple_abc9 tests to discard whitebox before write for sim 2020-01-23 19:55:11 -08:00
Eddie Hung
e471b330ac abc_box_id -> abc9_box_id in test 2020-01-23 19:12:19 -08:00
Eddie Hung
11e50c0e9e Test for (* keep *)-ed abc9_box_id 2020-01-23 18:56:25 -08:00
Eddie Hung
48aec34e0d abc_box_id -> abc9_box_id in test 2020-01-23 18:53:14 -08:00
Eddie Hung
5aaa19f1ab Update tests with reduced area 2020-01-21 16:50:04 -08:00
Eddie Hung
3d9737c1bd Merge remote-tracking branch 'origin/master' into eddie/abc9_refactor 2020-01-21 16:27:40 -08:00
Eddie Hung
8d1b736c4f Move from +/shiftx2mux.v into +/techmap.v; cleanup 2020-01-21 15:19:41 -08:00
Eddie Hung
7977574995 New techmap +/shiftx2mux.v which decomposes LSB first; better for ABC 2020-01-21 15:19:41 -08:00
Eddie Hung
cd8f55a911 write_xaiger: fix for (* keep *) on flop output 2020-01-21 09:43:04 -08:00
David Shah
22c967e35e ast: Add support for $sformatf system function 
Signed-off-by: David Shah <dave@ds0.me>
 2020-01-19 21:20:17 +00:00
Eddie Hung
6a163b5ddd xilinx_dsp: another typo; move xilinx specific test 2020-01-17 17:07:03 -08:00
Eddie Hung
db68e4c2a7 ice40_dsp: fix typo 2020-01-17 16:08:04 -08:00
Eddie Hung
5507c328ff Add #1644 testcase 2020-01-17 15:57:52 -08:00
Eddie Hung
ad6c49fff1 ice40_dsp: add test 2020-01-17 15:38:26 -08:00
Eddie Hung
2245afa142 More rigorous test 2020-01-16 09:15:42 -08:00
Eddie Hung
03ce2c72bb Merge remote-tracking branch 'origin/master' into eddie/abc9_refactor 2020-01-15 16:42:16 -08:00
Eddie Hung
5918ede9bd abc9: aAdd test to check $_NOT_s are absorbed 2020-01-15 14:36:05 -08:00
Eddie Hung
e30b6bbbf8 clk2fflogic: work for bit-level $_DFF_* and $_DFFSR_* 2020-01-15 09:51:31 -08:00
Eddie Hung
53a99ade9c Merge remote-tracking branch 'origin/master' into eddie/abc9_refactor 2020-01-14 11:46:56 -08:00
Eddie Hung
61ffd2d199
Merge pull request #1633 from YosysHQ/eddie/fix_autoname 
autoname: do not rename ports
 2020-01-14 11:40:54 -08:00
Eddie Hung
9fa0e03cc9
Merge pull request #1632 from YosysHQ/eddie/fix1630 
read_aiger: uniquify wires with $aiger<autoidx> prefix
 2020-01-14 11:40:40 -08:00
Miodrag Milanović
9fbeb57bbd
Merge pull request #1623 from YosysHQ/mmicko/edif_attr 
Export wire properties in EDIF
 2020-01-14 19:19:32 +01:00
Eddie Hung
00964e999d autoname: add testcase with $-prefix-ed port 2020-01-14 10:13:03 -08:00
Eddie Hung
565d349dc9 Add #1630 testcase 2020-01-13 21:27:53 -08:00
Eddie Hung
a6d4ea7463 abc9: respect (* keep *) on cells 2020-01-13 19:21:11 -08:00