Merge remote-tracking branch 'upstream/master'

Disabled "final loop assignment" feature

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Merge pull request #972 from YosysHQ/clifford/fix968

Add final loop variable assignment when unrolling for-loops

Merge pull request #966 from YosysHQ/clifford/fix956

Drive dangling wires with init attr with their init value

Merge pull request #962 from YosysHQ/eddie/refactor_synth_xilinx

Refactor synth_xilinx to auto-generate doc

Merge branch 'master' into eddie/refactor_synth_xilinx

Merge pull request #973 from christian-krieg/feature/python_bindings

Feature/python bindings cleanup

Include filename in "Executing Verilog-2005 frontend" message, fixes #959

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Fix performance bug in RTLIL::SigSpec::operator==(), fixes #970

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Add final loop variable assignment when unrolling for-loops, fixes #968

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Add handling of init attributes in "opt_expr -undriven"

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Merge branch 'master' of https://github.com/YosysHQ/yosys into feature/python_bindings

Cleaned up root directory

Merge pull request #960 from YosysHQ/eddie/equiv_opt_undef

Add -undef option to equiv_opt, passed to equiv_induct

Merge pull request #967 from olegendo/depfile_esc_spaces

escape spaces with backslash when writing dep file

fix codestyle formatting

escape spaces with backslash when writing dep file

filenames are sparated by spaces in the dep file.  if a filename in the
dep file contains spaces they must be escaped, otherwise the tool that
reads the dep file will see multiple wrong filenames.

Drive dangling wires with init attr with their init value, fixes #956

Where did this check come from!?!

Refactor synth_xilinx to auto-generate doc

Cleanup ice40

Add -undef option to equiv_opt, passed to equiv_induct

Misspelling

Merge pull request #957 from YosysHQ/oai4fix

Fixes for OAI4 cell implementation

Fixes for OAI4 cell implementation

Fixes #955 and the underlying issue in #954

Signed-off-by: David Shah <dave@ds0.me>

Format some names using inline code

Fix spelling

Remove some left-over log_dump()

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Merge pull request #914 from YosysHQ/xc7srl

synth_xilinx to now infer SRL16E/SRLC32E

Update help message

Merge pull request #952 from YosysHQ/clifford/fix370

Determine correct signedness and expression width in for-loop unrolling

Merge pull request #951 from YosysHQ/clifford/logdebug

Add log_debug() framework

Merge pull request #949 from YosysHQ/clifford/pmux2shimprove

Add full_pmux feature to pmux2shiftx

Merge pull request #953 from YosysHQ/clifford/fix948

Add support for zero-width signals to Verilog back-end

Move 'shregmap -tech xilinx' into map_cells

Add support for zero-width signals to Verilog back-end, fixes #948

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Merge remote-tracking branch 'origin/master' into xc7srl

Determine correct signedness and expression width in for loop unrolling, fixes #370

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Add log_debug() framework

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Merge pull request #950 from whitequark/attrmap_remove_wildcard

attrmap: extend -remove to allow removing attributes with any value

attrmap: extend -remove to allow removing attributes with any value.

Currently, `-remove foo` would only remove an attribute `foo = ""`,
which doesn't work on an attribute like `src` that may have any
value. Extend `-remove` to handle both cases. `-remove foo=""` has
the old behavior, and `-remove foo` will remove the attribute with
whatever value it may have, which is still compatible with the old
behavior.

Updaye pmux2shiftx test

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Add full_pmux feature to pmux2shiftx

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Set ENABLE_LIBYOSYS=0 by default

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Set ENABLE_PYOSYS=0 by default

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Merge pull request #905 from christian-krieg/feature/python_bindings

Feature/python bindings

Merge pull request #941 from Wren6991/sim_lib_io_clke

ice40 cells_sim.v: update clock enable behaviour based on hardware experiments

Merge branch 'dh73-master'

Merge branch 'master' of https://github.com/dh73/yosys_gowin into dh73-master

Re-added clean after techmap in synth_xilinx

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Merge pull request #916 from YosysHQ/map_cells_before_map_luts

synth_xilinx to map_cells before map_luts

Merge pull request #911 from mmicko/gowin-nobram

Make nobram false by default for gowin

Merge pull request #909 from zachjs/master

support repeat loops with constant repeat counts outside of constant functions

Merge pull request #944 from YosysHQ/clifford/pmux2shiftx

Add pmux2shiftx command

Merge pull request #945 from YosysHQ/clifford/libwb

New behavior for read_verilog handling of whiteboxes

Disable blackbox detection in techmap files

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Tidy up, fix for -nosrl

Merge branch 'map_cells_before_map_luts' into xc7srl

Merge branch 'master' into map_cells_before_map_luts

Add comments

Use new pmux2shiftx from #944, remove my old attempt

ice40 cells_sim.v: SB_IO: update clock enable behaviour based on hardware experiments

Fix tests

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Add "noblackbox" attribute

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Merge remote-tracking branch 'origin/clifford/pmux2shiftx' into xc7srl

Merge remote-tracking branch 'origin/master' into xc7srl

New behavior for front-end handling of whiteboxes

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Merge pull request #943 from YosysHQ/clifford/whitebox

[WIP] Add "whitebox" attribute, add "read_verilog -wb"

Merge remote-tracking branch 'origin/pmux2shiftx' into xc7srl

Merge remote-tracking branch 'origin' into xc7srl

Auto-initialize OnehotDatabase on-demand in pmux2shiftx.cc

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Add "onehot" pass, improve "pmux2shiftx" onehot handling

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Add "techmap -wb", use in formal flows

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Check blackbox attribute in techmap/simplemap

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Add "wbflip" command

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Merge pull request #942 from YosysHQ/clifford/fix931

Improve proc full_case detection and handling

Improve "pmux2shiftx"

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Fix some typos

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Improvements in "pmux2shiftx"

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Improvements in pmux2shiftx

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Add test for pmux2shiftx

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Improve pmux2shift ctrl permutation finder

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Complete rewrite of pmux2shiftx

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Import initial pmux2shiftx from eddieh

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Improve "show" handling of 0/1/X/Z padding

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Change "ne" to "neq" in btor2 output

we need to do this because they changed the parser:
https://github.com/Boolector/btor2tools/commit/e97fc9cedabadeec4f621de22096e514f862c690

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Add tests/aiger/.gitignore

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Spelling fixes

Revert "write_json to not write contents (cells/wires) of whiteboxes"

This reverts commit 4ef03e19a8eafc324d3442f0642abf858071fdd4.

Update to ABC 3709744

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Merge pull request #917 from YosysHQ/eddie/fix_retime

Retime by default when abc -dff

write_json to not write contents (cells/wires) of whiteboxes

Ignore 'whitebox' attr in flatten with "-wb" option

Fix abc's remap_name to not ignore [^0-9] when extracting sid

ABC to call retime all the time

Add "whitebox" attribute, add "read_verilog -wb"

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Revert "synth_* with -retime option now calls abc with -D 1 as well"

This reverts commit 9a6da9a79a22e984ee3eec02caa230b66f10e11a.

Merge branch 'master' into eddie/fix_retime

Improve proc full_case detection and handling, fixes #931

Signed-off-by: Clifford Wolf <clifford@clifford.at>

Update to ABC d1b6413

Signed-off-by: Clifford Wolf <clifford@clifford.at>