remove port direction workaround from test case

update README.md with wand/wor information

remove leftovers from ast data structures

move wand/wor resolution into hierarchy pass

fix assignment of non-wires

add simple test case for wand/wor

fix indentation across files

implementation for assignments working

make lexer/parser aware of wand/wor net types

Merge pull request #1031 from mdaiter/optimizeLookupTableBtor

Optimize numberOfPermutations

Optimize numberOfPermutations

Merge pull request #1019 from YosysHQ/clifford/fix1016

Add "wreduce -keepdc"

Merge pull request #1021 from ucb-bar/fixfirrtl_shr,neg

Fix static shift operands, neg result type, minor formatting

Merge pull request #1024 from YosysHQ/eddie/fix_Wmissing_braces

Rename label

Try again

Fix warning

Fix static shift operands, neg result type, minor formatting
Static shift operands must be constants.
The result of FIRRTL's neg operator is signed.
Fix poor indentation for gen_read().

Merge remote-tracking branch 'upstream/master'

Add "wreduce -keepdc", fixes #1016

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

Merge pull request #1017 from Kmanfi/bigger_verilog_files

Read bigger Verilog files.

Read bigger Verilog files.

Hit parser limit with 3M gate design. This commit fix it.

Merge pull request #1013 from antmicro/parameter_attributes

Support for attributes on parameters and localparams for Verilog frontend

Added tests for Verilog frontent for attributes on parameters and localparams

Signed-off-by: Maciej Kurc <mkurc@antmicro.com>

Added support for parsing attributes on parameters in Verilog frontent. Content of those attributes is ignored.

Signed-off-by: Maciej Kurc <mkurc@antmicro.com>

Merge pull request #1012 from YosysHQ/clifford/sigspecrw

Another rounds of opt_clean improvements

Improvements in opt_clean

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

Add rewrite_sigspecs2, Improve remove() wires

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

Do not leak file descriptors in cover.cc

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

Merge pull request #1011 from hzeller/fix-constructing-string-from-int

Fix two instances of integer-assignment to string.

Merge pull request #1010 from hzeller/yacc-self-contained

Make the generated *.tab.hh include all the headers needed

Merge pull request #1008 from thasti/fix_libyosys_build

Create $(LIBDIR) to fix broken build in isolated environments

Merge pull request #1005 from smunaut/ice40_hfosc_trim

ice40/cells_sim.v: Add support for TRIM input to SB_HFOSC

Fix two instances of integer-assignment to string.

o In cover.cc, the int-result of mkstemps() was assigned to a string
  and silently interpreted as a single-character filename with a funny
  value. Fix with the intent: assign the filename.
o in libparse.cc, an int was assigned to a string, but depending on
  visible constructors, this is ambiguous. Explicitly cast this to
  a char.

Make the generated *.tab.hh include all the headers needed to define the union.

extract python prefix to allow overriding

remove ldconfig call

add mkdir for libyosys target, explicitly copy to target folder

bugpoint: check for -script option.

Fixes #925.

ice40/cells_sim.v: Add support for TRIM input to SB_HFOSC

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>

Merge pull request #1004 from YosysHQ/clifford/fix1002

Fix handling of glob_abort_cnt in opt_muxtree

Fix handling of glob_abort_cnt in opt_muxtree, fixes #1002

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

Merge pull request #1003 from makaimann/zinit-all

Zinit option '-singleton' -> '-all'

Add "fmcombine -initeq -anyeq"

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

Add "stat -tech xilinx"

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

Zinit option '-singleton' -> '-all'

Merge pull request #1000 from bwidawsk/synth-format

Add clang format, and use on intel_synth (v2)

Fix formatting for synth_intel.cc

This is realized through the recently added .clang-format file.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>

Add a .clang-format

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>

Add $stop to documentation

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

Remove added newline (by re-running minisat 00_UPDATE.sh)

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

Merge pull request #991 from kristofferkoch/gcc9-warnings

Fix all warnings that occurred when compiling with gcc9

Fix all warnings that occurred when compiling with gcc9

Merge pull request #998 from mdaiter/get_bool_attribute_opts

Minor optimization to get_attribute_bool

Minor optimization to get_attribute_bool

Add test case from #997

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

Fix handling of partial init attributes in write_verilog, fixes #997

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

Merge pull request #996 from mdaiter/ceil_log2_opts

Optimize ceil_log2 function

Optimize ceil_log2 function

Add "synth_xilinx -arch"

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

More opt_clean cleanups

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

Merge pull request #946 from YosysHQ/clifford/specify

Add specify parser

Merge pull request #975 from YosysHQ/clifford/fix968

Re-enable "final loop assignment" feature and fix opt_clean warnings

Merge pull request #871 from YosysHQ/verific_import

Improve verific -chparam and add hierarchy -chparam

Add tests/various/chparam.sh

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

Merge branch 'master' of github.com:YosysHQ/yosys into clifford/fix968

Fix the other bison warning in ilang_parser.y

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

Bugfix in peepopt_shiftmul.pmg

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

Merge pull request #992 from bwidawsk/bison-fix

verilog_parser: Fix Bison warning

Merge pull request #989 from YosysHQ/dave/abc_name_improve

ABC name recovery fixes

Fix bug in "expose -input"

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

Cleanups in opt_clean

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

Improve tests/various/specify.ys

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

Add "real" keyword to ilang format

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

Merge branch 'master' of github.com:YosysHQ/yosys into clifford/specify

verilog_parser: Fix Bison warning

As of Bison 2.6, name-prefix is deprecated. This fixes
frontends/verilog/verilog_parser.y:99.1-34: warning: deprecated directive, use ‘%define api.prefix {frontend_verilog_yy}’ [-Wdeprecated]
 %name-prefix "frontend_verilog_yy"

For details: https://www.gnu.org/software/bison/manual/html_node/Multiple-Parsers.html

Compile tested only.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>

Merge pull request #988 from YosysHQ/clifford/fix987

Add approximate support for SV "var" keyword

abc: Fix handling of postfixed names (e.g. for retiming)

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

abc: Improve name recovery

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

Improve opt_clean handling of unused wires

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

Add support for SVA "final" keyword

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

Improve write_verilog specify support

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

Update README

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

Add approximate support for SV "var" keyword, fixes #987

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

More testing

Fix spacing

Add quick-and-dirty specify tests

Merge remote-tracking branch 'origin/master' into clifford/specify

Rename cells_map.v to prevent clash with ff_map.v

iverilog with simcells.v as well

Add "hierarchy -chparam" support for non-verific top modules

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

log_warning_noprefix -> log_warning as per review

For hier_tree::Elaborate() also include SV root modules (bind)

Fix verific_parameters construction, use attribute to mark top netlists

WIP -chparam support for hierarchy when verific

verific_import() changes to avoid ElaborateAll()

Merge pull request #969 from YosysHQ/clifford/pmgenstuff

Improve pmgen, Add "peepopt" pass with shift-mul pattern

Merge pull request #984 from YosysHQ/eddie/fix_982

dffinit to do nothing when (* init *) value is 1'bx

Revert "synth_xilinx to call dffinit with -noreinit"

This reverts commit 1f62dc9081feb4852b1848d01951f631853edb38.

If init is 1'bx, do not add to dict as per @cliffordwolf