opt_expr to trim A port of $shiftx if Y_WIDTH == 1

Trim shiftx_width when upper bits are 1'bx

Add comment

Add variable length support to xilinx_srl

Rename pattern to fixed

attribute -> attr

Use Cell::has_keep_attribute()

abc9 to perform new 'map_ffs' before 'map_luts'

xilinx_srl to support FDRE and FDRE_1

Fix polarity of EN_POL

Add CLKPOL == 0

Reject if not minlen from inside pattern matcher

Get wire via SigBit

Respect \keep on cells or wires

Merge branch 'eddie/fix_mem2reg' into eddie/xilinx_srl

mem2reg to preserve user attributes and src

Add init support

Fix spacing

Initial progress on xilinx_srl

Merge pull request #1314 from YosysHQ/eddie/fix_techmap

techmap -max_iter to apply to each module individually

Missing newline

Fix copy-paste typo

Grammar

Add test

techmap -max_iter to apply to each module individually

Merge pull request #1209 from YosysHQ/eddie/synth_xilinx

[WIP] synth xilinx renaming, as per #1184

Merge pull request #1304 from YosysHQ/eddie/abc9_refactor

Refactor abc9 to use port attributes, not module attributes

Merge remote-tracking branch 'origin/master' into eddie/synth_xilinx

Merge pull request #1298 from YosysHQ/clifford/pmgen

Improvements in pmgen

Merge branch 'master' into clifford/pmgen

Add test case for real parameters

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

Merge pull request #1308 from jakobwenzel/real_params

Handle real values when deriving ast modules

Merge pull request #1309 from whitequark/proc_clean-fix-1268

proc_clean: fix order of switch insertion

Fix typo

Fix typo

ID({A,B,Y}) -> ID::{A,B,Y} for opt_share.cc

Clarify with 'only'

Update doc

Unify abc_carry_{in,out} into abc_carry and use port dir, as @mithro

proc_clean: fix order of switch insertion.

Fixes #1268.

handle real values when deriving ast modules

Merge pull request #1306 from mmicko/gitignore_fix

Ignore all generated headers for pmgen pass

Add *.sv to tests/simple_abc9/.gitignore

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

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

Merge pull request #1305 from YosysHQ/clifford/testfast

Speed up "make test" and related cleanups

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

Removal of more `stat` calls from tests

Ignore all generated headers for pmgen pass

Merge pull request #1290 from YosysHQ/eddie/pr1266_again

Wrap SB_LUT+SB_CARRY into $__ICE40_CARRY_WRAPPER (retry)

Merge branch 'master' into eddie/pr1266_again

Merge pull request #1283 from YosysHQ/clifford/fix1255

Fix various NDEBUG compiler warnings

Merge pull request #1303 from YosysHQ/bogdanvuk/opt_share

Implement opt_share from @bogdanvuk

Merge pull request #1300 from YosysHQ/eddie/cleanup2

Use ID::{A,B,Y,keep,blackbox,whitebox} instead of ID()

Fix erroneous ifndef-NDEBUG in verific.cc

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

Speed up "make test" and related cleanups

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

Add test for pmtest_test "reduce" demo pattern

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

Refactor pmgen rollback mechanism

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

Improvements in "test_pmgen -generate"

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

Add pmgen "fallthrough" statement

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

Use ID()

Add doc for abc_* attributes

Update abc_* attr in ecp5 and ice40

Compute abc_scc_break and move CI/CO outside of each abc9

Attach abc_scc_break, abc_carry_{in,out} attr to ports not modules

Merge pull request #1250 from bwidawsk/master

techlibs/intel: Clean up Makefile

Use ID() macro

Add 'opt_share' to CHANGELOG

Add 'opt_share' to 'opt -full'

Merge https://github.com/bogdanvuk/yosys into bogdanvuk/opt_share

Remove unused variable

Add help() call

Move namespace alias

Remove `using namespace RTLIL;`

Minor bugfix in "test_pmgen -generate"

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

Merge pull request #1302 from mmicko/dfflibmap_regression

DFFLIBMAP pass regression fix

Do not use Verific in tests/various/write_gzip.ys

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

Add pmgen finish statement, return number of matches

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

Redesign pmgen backtracking for recursive matching

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

Add pmgen "generate" feature

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

Regression in abc9

Just needed IDs to be IdString

Refactor demo_reduce into test_pmgen

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

Add missing NMUX to "abc -g" handling

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

Try this for gcc-4.8?

Fix spacing

Use ID::keep more liberally too

Use more ID::{A,B,Y,blackbox,whitebox}

Add doc for pmgen semioptional statement, Add pmgen changes to CHANGELOG

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

Merge pull request #1299 from YosysHQ/eddie/cleanup2

More cleanup, more use of ID() inside passes/techmap

Update pmgen documentation

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

Change pmgen default rule to reject, switch peepopt behavior to accept

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

Merge branch 'master' into clifford/fix1255

Fix

Change signature of parse_blif to take IdString

ID(\\.*) -> ID(.*)

Convert a few more to ID

Transform all "\\*" identifiers into ID()

Transform "$.*" to ID("$.*") in passes/techmap

Add demo_reduce pass to demonstrace recursive pattern matching

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

Improvements in pmgen for recursive patterns

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