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* machxo2: Add believed-to-be-correct tribuf test.William D. Jones2021-02-231-0/+9
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* machxo2: Add passing fsm, mux, and shifter tests.William D. Jones2021-02-233-0/+65
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* machxo2: Add add_sub test. Fix tests to include FACADE_IO primitives.William D. Jones2021-02-233-3/+11
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* machxo2: Add dffe test.William D. Jones2021-02-231-0/+9
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* machxo2: Add dff.ys test, fix another cells_map.v typo.William D. Jones2021-02-231-0/+10
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* machxo2: Add test/arch/machxo2 directory (test does not pass).William D. Jones2021-02-233-0/+14
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* xilinx_dffopt: Don't crash on missing IS_*_INVERTED.Marcelina Kościelnicka2021-01-272-1/+48
| | | | | | | | The presence of IS_*_INVERTED on FD* cells follows Vivado, which apparently has been decided by a dice roll. Just assume false if the parameter doesn't exist. Fixes #2559.
* nexus: DSP inference supportDavid Shah2020-11-201-12/+34
| | | | Signed-off-by: David Shah <dave@ds0.me>
* Update nexus arch tests to new harnessXiretza2020-10-291-19/+3
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* xilinx: Fix attributes_test.ysMarcelina Kościelnicka2020-10-241-4/+2
| | | | | | | | | | This test pretty much passes by accident — the `prep` command runs memory_collect without memory_dff first, which prevents merging read register into the memory, and thus blocks block RAM inference for a reason completely unrelated to the attribute. The attribute setting didn't actually work because it was set on the containing module instead of the actual memory.
* memory_dff: Fix needlessly duplicating enable bits.Marcelina Kościelnicka2020-10-221-0/+24
| | | | | | | | | When the register being merged into the EN signal happens to be a $sdff, the current code creates a new $mux for every bit, even if they happen to be identical (as is usually the case), preventing proper grouping further down the flow. Fix this by adding a simple cache. Fixes #2409.
* Merge pull request #2397 from daveshah1/nexusMiodrag Milanović2020-10-1915-0/+298
|\ | | | | synth_nexus: Initial implementation
| * synth_nexus: Initial implementationDavid Shah2020-10-1515-0/+298
| | | | | | | | Signed-off-by: David Shah <dave@ds0.me>
* | Merge pull request #2380 from Xiretza/parallel-testsclairexen2020-10-017-133/+21
|\ \ | |/ |/| Clean up and parallelize testsuite
| * tests: Centralize test collection and Makefile generationXiretza2020-09-217-133/+21
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* | xilinx: do not make DSP48E1 a whitebox for ABC9 by default (#2325)Eddie Hung2020-09-231-0/+37
|/ | | | | | | | | | | * xilinx: eliminate SCCs from DSP48E1 model * xilinx: add SCC test for DSP48E1 * Update techlibs/xilinx/cells_sim.v * xilinx: Gate DSP48E1 being a whitebox behind ALLOW_WHITEBOX_DSP48E1 Have a test that checks it works through ABC9 when enabled
* intel_alm: Add multiply signedness to cellsDan Ravensloft2020-08-262-6/+44
| | | | | | Quartus assumes unsigned multiplication by default, breaking signed multiplies, so add an input signedness parameter to the MISTRAL_MUL* cells to propagate to Quartus' <family>_mac cells.
* techmap/shift_shiftx: Remove the "shiftx2mux" special path.Marcelina Kościelnicka2020-08-201-2/+3
| | | | | | | | | | | | | | Our techmap rules for $shift and $shiftx cells contained a special path that aimed to decompose the shift LSB-first instead of MSB-first in select cases that come up in pmux lowering. This path was needlessly overcomplicated and contained bugs. Instead of doing that, just switch over the main path to iterate LSB-first (except for the specially-handled MSB for signed shifts and overflow handling). This also makes the code consistent with shl/shr/sshl/sshr cells, which are already decomposed LSB-first. Fixes #2346.
* Replace opt_rmdff with opt_dff.Marcelina Kościelnicka2020-08-077-31/+28
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* opt_expr: Remove -clkinv option, make it the default.Marcelina Kościelnicka2020-07-311-2/+1
| | | | | Adds -noclkinv option just in case the old behavior was actually useful to someone.
* synth_ice40: Use opt_dff.Marcelina Kościelnicka2020-07-301-1/+1
| | | | | | | | | The main part is converting ice40_dsp to recognize the new FF types created in opt_dff instead of trying to recognize the mux patterns on its own. The fsm call has been moved upwards because the passes cannot deal with $dffe/$sdff*, and other optimizations don't help it much anyway.
* synth_xilinx: Use opt_dff.Marcelina Kościelnicka2020-07-301-9/+7
| | | | | | | | | The main part is converting xilinx_dsp to recognize the new FF types created in opt_dff instead of trying to recognize the patterns on its own. The fsm call has been moved upwards because the passes cannot deal with $dffe/$sdff*, and other optimizations don't help it much anyway.
* intel_alm: direct M10K instantiationDan Ravensloft2020-07-271-0/+6
| | | | This reverts commit a3a90f6377f251d3b6c5898eb1543f8832493bb8.
* intel_alm: increase abc9 -WDan Ravensloft2020-07-261-6/+6
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* satgen: Add support for dffe, sdff, sdffe, sdffce cells.Marcelina Kościelnicka2020-07-241-2/+0
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* intel_alm: add additional ABC9 timingsDan Ravensloft2020-07-231-6/+4
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* Merge pull request #2238 from YosysHQ/mwk/dfflegalize-anlogicMiodrag Milanović2020-07-161-12/+14
|\ | | | | anlogic: Use dfflegalize.
| * anlogic: Use dfflegalize.Marcelina Kościelnicka2020-07-141-12/+14
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* | Revert "intel_alm: direct M10K instantiation"Lofty2020-07-131-6/+0
| | | | | | | | This reverts commit 09ecb9b2cf3ab76841d30712bf70dafc6d47ef67.
* | xilinx: Fix srl regression.Marcelina Kościelnicka2020-07-121-0/+41
| | | | | | | | | | | | | | Of standard yosys cells, xilinx_srl only works on $_DFF_?_ and $_DFFE_?P_, which get upgraded to $_SDFFE_?P?P_ by dfflegalize at the point where xilinx_srl is called for non-abc9. Fix this by running ff_map.v first, resulting in FDRE cells, which are handled correctly.
* | gowin: Use dfflegalize.Marcelina Kościelnicka2020-07-062-13/+8
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* | intel_alm: direct M10K instantiationDan Ravensloft2020-07-051-0/+6
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* | synth_gowin: ABC9 supportDan Ravensloft2020-07-051-1/+5
| | | | | | | | | | This adds ABC9 support for synth_gowin; drastically improving synthesis quality.
* | intel_alm: add Cyclone 10 GX testsDan Ravensloft2020-07-0511-2/+236
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* | intel_alm: DSP inferenceDan Ravensloft2020-07-051-0/+23
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* | synth_intel_alm: Use dfflegalize.Marcelina Kościelnicka2020-07-041-1/+1
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* | Improve MISTRAL_FF specify rulesDan Ravensloft2020-07-041-1/+2
| | | | | | | | Co-authored-by: Eddie Hung <eddie@fpgeh.com>
* | tests: update fsm.ys resource countEddie Hung2020-07-041-4/+4
|/ | | | | Suspect it is to do with map/set ordering in techmap; should be fixed by #1862?
* intel_alm: fix DFFE matchingDan Ravensloft2020-06-112-4/+4
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* Add missing .gitignore fileClaire Wolf2020-06-041-0/+2
| | | | Signed-off-by: Claire Wolf <claire@symbioticeda.com>
* Merge pull request #2077 from YosysHQ/eddie/abc9_dff_improveEddie Hung2020-06-041-4/+53
|\ | | | | abc9: -dff improvements
| * abc9_ops: update messaging (credit to @Xiretza for spotting)Eddie Hung2020-05-301-4/+4
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| * tests: add test for abc9 -dff removing a redundant flop entirelyEddie Hung2020-05-251-0/+15
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| * tests: add testcase for abc9 -dff preserving flop namesEddie Hung2020-05-251-0/+34
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* | Merge pull request #2082 from YosysHQ/eddie/abc9_scc_fixesEddie Hung2020-06-031-0/+13
|\ \ | | | | | | abc9: fixes around handling combinatorial loops
| * | tests: tidy up testcaseEddie Hung2020-06-031-3/+0
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| * | tests: add ecp5 latch testcase with -abc9Eddie Hung2020-05-251-0/+16
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* | | Merge pull request #2080 from YosysHQ/eddie/fix_test_warningsEddie Hung2020-06-032-2/+2
|\ \ \ | | | | | | | | tests: reduce test warnings
| * | | tests: fix some test warningsEddie Hung2020-05-252-2/+2
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* | | allow range for mux testMiodrag Milanovic2020-06-011-1/+2
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