Commit Graph

1617 Commits

Author SHA1 Message Date
Clifford Wolf f4abc21d8a Add "whitebox" attribute, add "read_verilog -wb"
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-04-18 17:45:47 +02:00
Eddie Hung 0642baabbc Merge branch 'master' into eddie/fix_retime 2019-04-18 07:57:17 -07:00
Clifford Wolf 88be1cbfa5 Improve proc full_case detection and handling, fixes #931
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-04-18 15:13:47 +02:00
Eddie Hung 4da4a6da2f Revert #895 2019-04-16 11:07:51 -07:00
Eddie Hung b3378745fd
Revert "Recognise default entry in case even if all cases covered (fix for #931)" 2019-04-15 17:52:45 -07:00
Eddie Hung 3c1f1a6605 Fix ordering of when to insert zero index 2019-04-11 16:25:59 -07:00
Eddie Hung f587950bde More unused 2019-04-11 16:20:43 -07:00
Eddie Hung b15b410b41 Remove unused 2019-04-11 16:18:01 -07:00
Eddie Hung b1f1db2fcf Fixes 2019-04-11 16:17:09 -07:00
Eddie Hung e8c26f2839 WIP 2019-04-11 15:52:04 -07:00
Eddie Hung 09e7eb7aed Spelling fixes 2019-04-11 15:09:13 -07:00
Eddie Hung adc6efb584 Recognise default entry in case even if all cases covered (#931) 2019-04-11 12:34:51 -07:00
Eddie Hung 5f4024ffd2 Revert "abc -dff now implies "-D 0" otherwise retiming doesn't happen"
This reverts commit 19271bd996.
2019-04-10 08:31:40 -07:00
Eddie Hung 78d35a86c0 Revert ""&nf -D 0" fails => use "-D 1" instead"
This reverts commit 3c253818ca.
2019-04-10 08:31:35 -07:00
Eddie Hung c89cd48f58 Merge remote-tracking branch 'origin/master' into eddie/fix_retime 2019-04-10 08:23:00 -07:00
Eddie Hung 0deaccbaae
Fix a few typos 2019-04-08 16:46:33 -07:00
Eddie Hung 6797f6b6c4 $_XILINX_SHREG_ to preserve src attribute 2019-04-08 16:24:20 -07:00
Eddie Hung 7e773741ab Merge branch 'undo_pr895' into xc7srl 2019-04-08 16:07:52 -07:00
Eddie Hung 13fc70d7a4 Undo #895 by instead setting an attribute 2019-04-08 16:05:24 -07:00
Eddie Hung 93b1621911 Cope with undoing #895 2019-04-08 15:57:07 -07:00
Eddie Hung d3930ca79e Revert "Remove handling for $pmux, since #895"
This reverts commit aa693d5723.
2019-04-08 12:01:06 -07:00
David Shah 2bf3ca6443 memory_bram: Fix multiport make_transp
Signed-off-by: David Shah <dave@ds0.me>
2019-04-07 16:56:31 +01:00
Eddie Hung 1d526b7f06 Call shregmap twice -- once for variable, another for fixed 2019-04-05 17:35:49 -07:00
Eddie Hung 4afcad70e2 Merge branch 'eddie/fix_retime' into xc7srl 2019-04-05 16:30:17 -07:00
Eddie Hung d559023007 Fix S0 -> S1 2019-04-05 16:28:14 -07:00
Eddie Hung 0364a5d811 Merge branch 'eddie/fix_retime' into xc7srl 2019-04-05 15:46:18 -07:00
Eddie Hung 3c253818ca "&nf -D 0" fails => use "-D 1" instead 2019-04-05 15:30:19 -07:00
Eddie Hung 19271bd996 abc -dff now implies "-D 0" otherwise retiming doesn't happen 2019-04-05 14:42:25 -07:00
Clifford Wolf 75ca06526a Added missing argument checking to "mutate" command
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-04-04 18:10:10 +02:00
Eddie Hung 572603409c Merge branch 'map_cells_before_map_luts' into xc7srl 2019-04-04 07:54:42 -07:00
Benedikt Tutzer cae657cebd Used PyImport_ImportModule instead of PyImport_Import to avoid the explicit conversion to a python string 2019-04-04 10:35:01 +02:00
Benedikt Tutzer e64b3f1074 Changed filesystem dependency to boost instead of experimental std library 2019-04-04 09:24:50 +02:00
Eddie Hung aa693d5723 Remove handling for $pmux, since #895 2019-04-03 08:35:32 -07:00
Sylvain Munaut 39380c45ba proc_mux: Fix crash when trying to optimize non-existant mux to shiftx
last_mux_cell can be NULL ...

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2019-04-03 14:50:12 +02:00
Benedikt Tutzer fd7fb1377d Added cross-platform support for plugin-paths 2019-04-03 13:21:40 +02:00
Eddie Hung d8465590ac Merge remote-tracking branch 'origin/master' into xc7srl 2019-04-03 03:36:11 -07:00
Benedikt Tutzer bbfb43006d Improved Error reporting when Python passes are loaded 2019-04-03 12:21:56 +02:00
David Shah 6acbc016f4 memory_bram: Consider read enable for address expansion register
Signed-off-by: David Shah <dave@ds0.me>
2019-04-02 19:47:50 +01:00
Eddie Hung aaa2690a56
Merge pull request #895 from YosysHQ/pmux2shiftx
RFC: Add a pmux-to-shiftx optimisation to proc_mux
2019-04-02 00:16:14 -07:00
Benedikt Tutzer 03d1606b42 Merge remote-tracking branch 'origin/master' into feature/python_bindings 2019-03-28 12:16:39 +01:00
Clifford Wolf 32bd0f22ec
Merge pull request #901 from trcwm/libertyfixes
Libertyfixes: accept superfluous ; at end of group.
2019-03-28 09:32:05 +01:00
Clifford Wolf 662429cc49
Merge pull request #903 from YosysHQ/bram_reset_transp
memory_bram: Reset make_transp when growing read ports
2019-03-28 09:30:48 +01:00
David Shah 60594ad40c memory_bram: Reset make_transp when growing read ports
Signed-off-by: David Shah <dave@ds0.me>
2019-03-27 17:19:14 +00:00
Niels Moseley 263ab60b43 Liberty file parser now accepts superfluous ; 2019-03-27 15:17:58 +01:00
Niels Moseley 487cb45b87 Liberty file parser now accepts superfluous ; 2019-03-27 15:15:53 +01:00
Clifford Wolf 2c7fe42ad1 Add "rename -output"
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-27 13:47:42 +01:00
Clifford Wolf d351b7cb99 Improve "rename" help message
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-27 13:33:26 +01:00
Clifford Wolf 38b3fbd3f0 Add "cutpoint -undef"
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-26 16:01:14 +01:00
Clifford Wolf d0b9b1bece Add "hdlname" attribute
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-26 14:52:48 +01:00
Eddie Hung 6b90d3cf6c Merge remote-tracking branch 'origin/master' into xc7srl 2019-03-25 13:17:22 -07:00
Clifford Wolf ddc1a4488e Add "cutpoint" pass
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-25 19:49:00 +01:00
Eddie Hung b7a3d35c6b Create one $shiftx per bit in width 2019-03-25 11:16:56 -07:00
Clifford Wolf 9ec50ca7b9
Merge pull request #896 from YosysHQ/transp_fixes
memory_bram: Fix multiclock make_transp
2019-03-25 14:55:16 +01:00
Niels Moseley 1f7f54e68e spaces -> tabs 2019-03-25 14:12:04 +01:00
Niels Moseley 9d9cc8a314 EOL is now accepted as ';' replacement on lines that look like: feature_xyz(option) 2019-03-25 12:15:10 +01:00
Niels Moseley 3b3b77291a Updated the liberty parser to accept [A:B] ranges (AST has not been updated). Liberty parser now also accepts key : value pair lines that do not end in ';'. 2019-03-24 22:54:18 +01:00
David Shah ac6cc88db3 memory_bram: Fix multiclock make_transp
Signed-off-by: David Shah <dave@ds0.me>
2019-03-24 16:21:36 +00:00
Eddie Hung 2507d01b03 Add a pmux-to-shiftx optimisation to proc_mux 2019-03-23 16:45:36 -07:00
Eddie Hung bf83c074c8 Cope with SHREG not having E port; Revert $pmux fine tune 2019-03-23 16:09:38 -07:00
Clifford Wolf ccfa2fe01c Add "mutate -none -mode", "mutate -mode none"
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-23 20:20:32 +01:00
Clifford Wolf 59c44bb61a Add "mutate -s <filename>"
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-23 17:53:09 +01:00
Eddie Hung 098bd5758f Add support for SHREGMAP+$mux, also fine tune $pmux 2019-03-22 23:22:19 -07:00
Eddie Hung 0895093c7c Leftover printf 2019-03-22 19:14:04 -07:00
Eddie Hung 456295eb66 Fixes for multibit 2019-03-22 18:32:42 -07:00
Eddie Hung 03d108cd1f Working for 1 bit 2019-03-22 17:46:49 -07:00
Eddie Hung 46753cf89f Merge remote-tracking branch 'origin/master' into xc7srl 2019-03-22 13:10:42 -07:00
Clifford Wolf 7cfd83c341 Trim init attributes when resizing FFs in "wreduce", fixes #887
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-22 11:42:19 +01:00
Eddie Hung 5597270b9e Opt 2019-03-21 10:20:27 -07:00
Eddie Hung 2b911e270b Fix spacing 2019-03-20 12:28:39 -07:00
Eddie Hung 505e4c2d59 Revert $__SHREG_ to orig; use $__XILINX_SHREG for variable length 2019-03-19 21:58:05 -07:00
Eddie Hung 5445cd4d00 Add support for variable length Xilinx SRL > 128 2019-03-19 17:44:33 -07:00
Eddie Hung 4cd8f02973 shregmap -tech xilinx to delete $shiftx for var length SRL 2019-03-19 15:05:08 -07:00
Eddie Hung 24553326dd Merge remote-tracking branch 'origin/master' into xc7srl 2019-03-19 13:11:30 -07:00
Eddie Hung 0ea7eba5f1 Make output port a non chain user 2019-03-19 13:08:43 -07:00
Eddie Hung ed32119d13 Fix shregmap to correctly recognise non chain users; cleanup 2019-03-18 16:12:19 -07:00
Eddie Hung b94db54664 shiftx NULL pointer check 2019-03-18 13:35:54 -07:00
Eddie Hung d6d9ef0fee Cleanup 2019-03-16 12:49:46 -07:00
Eddie Hung fadeadb8c8 Only accept <128 for variable length, only if $shiftx exclusive 2019-03-16 08:51:13 -07:00
Eddie Hung 06f8f2654a Working 2019-03-15 19:13:40 -07:00
Clifford Wolf aa65d3fe65 Improve mix of src/wire/wirebit coverage in "mutate -list"
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-16 00:55:46 +01:00
Clifford Wolf dacaebae35 Add "fmcombine -fwd -bwd -nop"
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-15 21:45:37 +01:00
Clifford Wolf 370db33a4c Add fmcombine pass
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-15 20:46:17 +01:00
Clifford Wolf d1985f6a22 Improvements in "mutate" list-reduce algorithm
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-15 00:18:31 +01:00
Clifford Wolf 27a5d9c91e Add "mutate -cfg", improve pick_cover behavior
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-14 23:20:41 +01:00
Clifford Wolf 4d304e3da7 Add a strictly coverage-driven mutation selection strategy
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-14 23:01:55 +01:00
Clifford Wolf 2a4263a75d Improve "mutate" wire coverage metric
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-14 23:01:01 +01:00
Clifford Wolf 1b4fdbb0d8 Add more mutation types, improve mutation src cover
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-14 22:04:42 +01:00
Clifford Wolf 6ad5d036c5 Add "mutate" command DB reduce functionality
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-14 22:04:42 +01:00
Clifford Wolf 8e6b69d7bb Add "mutate -mode inv", various other mutate improvements
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-14 22:04:42 +01:00
Clifford Wolf ea8ee24140 Add basic "mutate -list N" framework
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-14 22:04:42 +01:00
Clifford Wolf f806b95ed6 Improve handling of and-with-1 and or-with-0 in opt_expr, fixes #327
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-14 20:52:00 +01:00
Eddie Hung 8af9979aab Revert "Add shregmap -init_msb_first and use in synth_xilinx"
This reverts commit 26ecbc1aee.
2019-03-14 09:01:48 -07:00
Eddie Hung f1a8e8a480 Merge remote-tracking branch 'origin/master' into xc7srl 2019-03-14 08:59:19 -07:00
Eddie Hung 26ecbc1aee Add shregmap -init_msb_first and use in synth_xilinx 2019-03-14 08:10:02 -07:00
Clifford Wolf 399ab16315 Add $dffsr support to async2sync
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-09 11:52:00 -08:00
Eddie Hung d03780c3f4
Fix spelling in pmgen/README.md 2019-03-05 17:55:29 -08:00
Clifford Wolf ae9286386d Only run derive on blackbox modules when ports have dynamic size
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-02 12:36:46 -08:00
Larry Doolittle 57f8bb471f Try again for passes/pmgen/ice40_dsp_pm.h rule
Tested on both in-tree and out-of-tree builds
2019-03-01 20:20:53 -08:00
Clifford Wolf e847690bda Fix multiple issues in wreduce FF handling, fixes #835
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-28 17:24:46 -08:00
Larry Doolittle e2fc18f27b Reduce amount of trailing whitespace in code base 2019-02-28 14:58:11 -08:00
Clifford Wolf 68a6937173 Fix pmgen for in-tree builds
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-28 14:56:05 -08:00
Clifford Wolf 64d91219b4 Fix pmgen for out-of-tree build
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-28 14:00:58 -08:00
Clifford Wolf 63be3f3bab Improvements in "supercover" pass
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-27 11:45:13 -08:00
Clifford Wolf a58dbcf2ba Add "supercover" skeleton
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-27 11:37:08 -08:00
Larry Doolittle 61fc411c5d Clean up some whitepsace outliers 2019-02-26 09:39:46 -08:00
Clifford Wolf c258b99040 Minor changes ontop of 71bcc4c: Remove hierarchy warning that is redundant to -check
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-24 20:41:36 +01:00
Clifford Wolf c118f9a377
Merge pull request #812 from ucb-bar/arrayhierarchyfixes
Define basic_cell_type() function and use it to derive the cell type …
2019-02-24 11:39:13 -08:00
Clifford Wolf cd722f26a5 Cleanups in ARST handling in wreduce
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-24 20:34:23 +01:00
Clifford Wolf da14bc8524
Merge pull request #824 from litghost/fix_reduce_on_ff
Fix WREDUCE on FF not fixing ARST_VALUE parameter.
2019-02-24 11:29:14 -08:00
Jim Lawson 71bcc4c644 Address requested changes - don't require non-$ name.
Suppress warning if name does begin with a `$`.
Fix hierachy tests so they have something to grep.
Announce hierarchy test types.
2019-02-22 16:06:10 -08:00
Keith Rothman 25680f6a07 Fix WREDUCE on FF not fixing ARST_VALUE parameter.
Adds test case that fails without code change.

Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
2019-02-22 10:30:42 -08:00
Clifford Wolf 344afdcd5f
Merge pull request #740 from daveshah1/improve_dress
Improve ABC netname preservation
2019-02-22 01:16:34 +01:00
Clifford Wolf d55790909c Hotfix for 4c82ddf
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-21 19:27:23 +01:00
Keith Rothman 4c82ddf394 Add -params mode to force undef parameters in selected cells.
Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
2019-02-21 10:16:38 -08:00
Clifford Wolf 0e371109b0
Merge pull request #818 from YosysHQ/clifford/dffsrfix
Fix opt_rmdff handling of $_DFFSR_???_ and $_DLATCHSR_???_, fixes #816
2019-02-21 18:58:44 +01:00
Clifford Wolf 893194689d Fix typo in passes/pmgen/README.md
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-21 18:50:02 +01:00
Clifford Wolf 2da4c9c8f0 Fix opt_rmdff handling of $_DFFSR_???_ and $_DLATCHSR_???_, fixes #816
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-21 13:49:45 +01:00
Clifford Wolf 2fe1c830eb Bugfix in ice40_dsp
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-21 13:28:46 +01:00
Clifford Wolf 218e9051bb Add "synth_ice40 -dsp"
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-20 16:42:27 +01:00
Clifford Wolf 246391200e Add FF support to wreduce
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-20 16:36:42 +01:00
Clifford Wolf dca65d83a0 Detect and reject cases that do not map well to iCE40 DSPs (yet)
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-20 11:18:19 +01:00
Jim Lawson 5c4a72c43e Fix normal (non-array) hierarchy -auto-top.
Add simple test.
2019-02-19 14:35:15 -08:00
Clifford Wolf 5a853ed46c Add actual DSP inference to ice40_dsp pass
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-17 15:35:48 +01:00
Clifford Wolf c06c062469 Merge branch 'master' of github.com:YosysHQ/yosys into pmgen 2019-02-17 12:10:19 +01:00
Jim Lawson 5c504c5ae6 Define basic_cell_type() function and use it to derive the cell type for array references (instead of duplicating the code). 2019-02-15 11:31:37 -08:00
David Shah a4515712cb fsm_opt: Fix runtime error for FSMs without a reset state
Signed-off-by: David Shah <dave@ds0.me>
2019-02-07 10:35:36 +00:00
David Shah 58c22dae31 abc: Improved recovered netnames, also preserve src on nets with dress
Signed-off-by: David Shah <davey1576@gmail.com>
2019-02-06 22:23:13 +01:00
David Shah 8524a479b1 abc: Preserve naming through ABC using 'dress' command
Signed-off-by: David Shah <dave@ds0.me>
2019-02-06 22:23:13 +01:00
whitequark 58d059ccb7 proc_clean: fix critical typo. 2019-01-23 22:08:38 +00:00
whitequark 95b6c35882 proc_clean: fix fully def check to consider compare/signal length.
Fixes #790.
2019-01-18 23:22:19 +00:00
Clifford Wolf 8ddec5d882 Progress in pmgen
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-01-15 11:23:25 +01:00
Clifford Wolf 5216735210 Progress in pmgen, add pmgen README
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-01-15 11:23:25 +01:00
Clifford Wolf 55ac030382 Fix pmgen "reject" statement
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-01-15 11:23:25 +01:00
Clifford Wolf d45379936b Progress in pmgen
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-01-15 11:23:25 +01:00
Clifford Wolf 1f8e76f993 Progress in pmgen
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-01-15 11:23:25 +01:00
Clifford Wolf b9545aa0e1 Progress in pmgen
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-01-15 11:23:25 +01:00
Clifford Wolf ad69c668ce Add mockup .pmg (pattern matcher generator) file
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-01-15 11:23:25 +01:00
whitequark e792bd56b7 flowmap: clean up terminology.
* "map": group gates into LUTs;
  * "pack": replace gates with LUTs.

This is important because we have FlowMap and DF-Map, and currently
our messages are ambiguous.

Also clean up some other log messages while we're at it.
2019-01-08 02:05:06 +00:00
whitequark 211c26a4c9 flowmap: implement depth relaxation. 2019-01-08 01:13:05 +00:00
Clifford Wolf 8a63fc51d3 Bugfix in $memrd sharing
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-01-07 10:04:47 +01:00
Clifford Wolf dbd51d7bda
Merge pull request #782 from whitequark/flowmap_dfs
flowmap: construct a max-volume max-flow min-cut, not just any one
2019-01-07 09:47:57 +01:00
Clifford Wolf b5f6e786ea Switch "bugpoint" from system() to run_command()
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-01-07 09:45:21 +01:00
whitequark a342d6db49 bugpoint: new pass.
A typical use of `bugpoint` would involve a script with a pass under
test, e.g.:

    flowmap -relax -optarea 100

and would be invoked as:

    bugpoint -yosys ./yosys -script flowmap.ys -clean -cells

This replaces the current design with the minimal design that still
crashes the `flowmap.ys` script.

`bugpoint` can also be used to perform generic design minimization
using `select`, e.g. the following script:

    select i:* %x t:$_MUX_ %i -assert-max 0

would remove all parts of the design except for an unbroken path from
an input to an output port that goes through exactly one $_MUX_ cell.
(The condition is inverted.)
2019-01-07 03:13:19 +00:00
whitequark 8b44198e23 flowmap: construct a max-volume max-flow min-cut, not just any one. 2019-01-06 19:51:37 +00:00
Scott Mansell 62c90c4e17 Rename cells based on the wires they drive. 2019-01-06 19:00:16 +13:00
whitequark 2fcc1ee72e flowmap: add -minlut option, to allow postprocessing with opt_lut. 2019-01-04 21:18:03 +00:00
whitequark 9bc5cf0844 flowmap: cleanup for clarity. NFCI. 2019-01-04 13:04:20 +00:00
whitequark fd21564deb flowmap: improve debug graph output. NFC. 2019-01-04 03:30:04 +00:00
whitequark 7850a0c28a flowmap: add link to longer version of paper. NFC. 2019-01-04 02:33:10 +00:00
Clifford Wolf d98fe8ce1f
Merge pull request #775 from whitequark/opt_flowmap
flowmap: new techmap pass
2019-01-03 17:03:18 +01:00