yosys.git
5 years agoMerge pull request #734 from grahamedgecombe/fix-shuffled-bram-initdata
Clifford Wolf [Sun, 16 Dec 2018 14:53:44 +0000 (15:53 +0100)]
Merge pull request #734 from grahamedgecombe/fix-shuffled-bram-initdata

memory_bram: Fix initdata bit order after shuffling

5 years agoMerge pull request #730 from smunaut/ffssr_dont_touch
Clifford Wolf [Sun, 16 Dec 2018 14:50:42 +0000 (15:50 +0100)]
Merge pull request #730 from smunaut/ffssr_dont_touch

ice40: Honor the "dont_touch" attribute in FFSSR pass

5 years agoMerge pull request #729 from whitequark/write_verilog_initial
Clifford Wolf [Sun, 16 Dec 2018 14:50:16 +0000 (15:50 +0100)]
Merge pull request #729 from whitequark/write_verilog_initial

write_verilog: correctly map RTLIL `sync init`

5 years agoMerge pull request #725 from olofk/ram4k-init
Clifford Wolf [Sun, 16 Dec 2018 14:42:04 +0000 (15:42 +0100)]
Merge pull request #725 from olofk/ram4k-init

Only use non-blocking assignments of SB_RAM40_4K for yosys

5 years agoMerge pull request #714 from daveshah1/abc_preserve_naming
Clifford Wolf [Sun, 16 Dec 2018 14:41:30 +0000 (15:41 +0100)]
Merge pull request #714 from daveshah1/abc_preserve_naming

Proof-of-concept: preserve naming through ABC using dress

5 years agoMerge pull request #723 from whitequark/synth_ice40_map_gates
Clifford Wolf [Sun, 16 Dec 2018 14:30:08 +0000 (15:30 +0100)]
Merge pull request #723 from whitequark/synth_ice40_map_gates

synth_ice40: split `map_gates` off `fine`

5 years agoMerge pull request #722 from whitequark/rename_src
Clifford Wolf [Sun, 16 Dec 2018 14:28:29 +0000 (15:28 +0100)]
Merge pull request #722 from whitequark/rename_src

rename: add -src, for inferring names from source locations

5 years agoMerge pull request #720 from whitequark/master
Clifford Wolf [Sun, 16 Dec 2018 14:27:23 +0000 (15:27 +0100)]
Merge pull request #720 from whitequark/master

lut2mux: handle 1-bit INIT constant in $lut cells

5 years agomemory_bram: Fix initdata bit order after shuffling
Graham Edgecombe [Sat, 8 Dec 2018 09:59:56 +0000 (09:59 +0000)]
memory_bram: Fix initdata bit order after shuffling

In some cases the memory_bram pass shuffles the order of the bits in a
memory's RD_DATA port. Although the order of the bits in the WR_DATA and
WR_EN ports is changed to match the RD_DATA port, the order of the bits
in the initialization data is not.

This causes reads of initialized memories to return invalid data (until
the initialization data is overwritten).

This commit fixes the bug by shuffling the initdata bits in exactly the
same order as the RD_DATA/WR_DATA/WR_EN bits.

5 years agoAdd yosys-smtbmc support for btor witness
Clifford Wolf [Mon, 10 Dec 2018 02:43:07 +0000 (03:43 +0100)]
Add yosys-smtbmc support for btor witness

Signed-off-by: Clifford Wolf <clifford@clifford.at>
5 years agoice40: Honor the "dont_touch" attribute in FFSSR pass
Sylvain Munaut [Sat, 8 Dec 2018 21:46:28 +0000 (22:46 +0100)]
ice40: Honor the "dont_touch" attribute in FFSSR pass

This is useful if you want to place FF manually ... can't merge SR in those
because it might make the manual placement invalid

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
5 years agoAdd "yosys-smtbmc --btorwit" skeleton
Clifford Wolf [Sat, 8 Dec 2018 05:59:27 +0000 (06:59 +0100)]
Add "yosys-smtbmc --btorwit" skeleton

Signed-off-by: Clifford Wolf <clifford@clifford.at>
5 years agoFix btor init value handling
Clifford Wolf [Sat, 8 Dec 2018 05:21:31 +0000 (06:21 +0100)]
Fix btor init value handling

Signed-off-by: Clifford Wolf <clifford@clifford.at>
5 years agowrite_verilog: correctly map RTLIL `sync init`.
whitequark [Fri, 7 Dec 2018 18:48:06 +0000 (18:48 +0000)]
write_verilog: correctly map RTLIL `sync init`.

5 years agoMerge pull request #727 from whitequark/opt_lut
David Shah [Fri, 7 Dec 2018 17:17:26 +0000 (17:17 +0000)]
Merge pull request #727 from whitequark/opt_lut

 opt_lut: leave intact LUTs with cascade feeding module outputs

5 years agoopt_lut: leave intact LUTs with cascade feeding module outputs.
whitequark [Fri, 7 Dec 2018 17:13:52 +0000 (17:13 +0000)]
opt_lut: leave intact LUTs with cascade feeding module outputs.

5 years agoopt_lut: show original truth table for both cells.
whitequark [Fri, 7 Dec 2018 17:04:41 +0000 (17:04 +0000)]
opt_lut: show original truth table for both cells.

5 years agoopt_lut: add -limit option, for debugging misoptimizations.
whitequark [Fri, 7 Dec 2018 16:31:15 +0000 (16:31 +0000)]
opt_lut: add -limit option, for debugging misoptimizations.

5 years agoOnly use non-blocking assignments of SB_RAM40_4K for yosys
Olof Kindgren [Thu, 6 Dec 2018 20:45:59 +0000 (21:45 +0100)]
Only use non-blocking assignments of SB_RAM40_4K for yosys

In an initial statement, blocking assignments are normally used
and e.g. verilator throws a warning if non-blocking ones are used.

Yosys cannot however properly resolve the interdependencies if
blocking assignments are used in the initialization of SB_RAM_40_4K
and thus this has been used.

This patch will change to use non-blocking assignments only for yosys

5 years agoabc: Preserve naming through ABC using 'dress' command
David Shah [Tue, 4 Dec 2018 14:17:47 +0000 (14:17 +0000)]
abc: Preserve naming through ABC using 'dress' command

Signed-off-by: David Shah <dave@ds0.me>
5 years agosynth_ice40: split `map_gates` off `fine`.
whitequark [Thu, 6 Dec 2018 12:02:42 +0000 (12:02 +0000)]
synth_ice40: split `map_gates` off `fine`.

5 years agoAdd missing .gitignore
Clifford Wolf [Thu, 6 Dec 2018 06:29:37 +0000 (07:29 +0100)]
Add missing .gitignore

Signed-off-by: Clifford Wolf <clifford@clifford.at>
5 years agoBugfix in opt_expr handling of a<0 and a>=0
Clifford Wolf [Thu, 6 Dec 2018 06:29:21 +0000 (07:29 +0100)]
Bugfix in opt_expr handling of a<0 and a>=0

Signed-off-by: Clifford Wolf <clifford@clifford.at>
5 years agoVerific updates
Clifford Wolf [Thu, 6 Dec 2018 06:21:50 +0000 (07:21 +0100)]
Verific updates

Signed-off-by: Clifford Wolf <clifford@clifford.at>
5 years agorename: add -src, for inferring names from source locations.
whitequark [Wed, 5 Dec 2018 20:34:53 +0000 (20:34 +0000)]
rename: add -src, for inferring names from source locations.

5 years agolut2mux: handle 1-bit INIT constant in $lut cells.
whitequark [Wed, 5 Dec 2018 19:27:48 +0000 (19:27 +0000)]
lut2mux: handle 1-bit INIT constant in $lut cells.

This pass already handles INIT constants shorter than 2^width, but
that was not done for the recursion base case.

5 years agoopt_lut: simplify type conversion. NFC.
whitequark [Wed, 5 Dec 2018 19:12:02 +0000 (19:12 +0000)]
opt_lut: simplify type conversion. NFC.

5 years agoMerge pull request #709 from smunaut/issue_708
Clifford Wolf [Wed, 5 Dec 2018 17:19:44 +0000 (09:19 -0800)]
Merge pull request #709 from smunaut/issue_708

Make return value of $clog2 signed

5 years agoMerge pull request #718 from whitequark/gate2lut
Clifford Wolf [Wed, 5 Dec 2018 17:16:35 +0000 (09:16 -0800)]
Merge pull request #718 from whitequark/gate2lut

 gate2lut: new techlib, for converting Yosys gates to FPGA LUTs

5 years agosynth_ice40: add -noabc option, to use built-in LUT techmapping.
whitequark [Wed, 5 Dec 2018 05:24:15 +0000 (05:24 +0000)]
synth_ice40: add -noabc option, to use built-in LUT techmapping.

This should be combined with -relut to get sensible results.

5 years agogate2lut: new techlib, for converting Yosys gates to FPGA LUTs.
whitequark [Wed, 5 Dec 2018 04:50:38 +0000 (04:50 +0000)]
gate2lut: new techlib, for converting Yosys gates to FPGA LUTs.

5 years agoFix typo.
whitequark [Wed, 5 Dec 2018 04:32:01 +0000 (04:32 +0000)]
Fix typo.

5 years agoMerge pull request #713 from Diego-HR/master
Clifford Wolf [Wed, 5 Dec 2018 17:08:30 +0000 (09:08 -0800)]
Merge pull request #713 from Diego-HR/master

Changes in GoWin synth commands and ALU primitive support

5 years agoMerge pull request #712 from mmicko/anlogic-support
Clifford Wolf [Wed, 5 Dec 2018 17:08:04 +0000 (09:08 -0800)]
Merge pull request #712 from mmicko/anlogic-support

Initial support for Anlogic FPGA

5 years agoRename opt_lut.cpp to opt_lut.cc
Clifford Wolf [Wed, 5 Dec 2018 17:03:58 +0000 (18:03 +0100)]
Rename opt_lut.cpp to opt_lut.cc

Signed-off-by: Clifford Wolf <clifford@clifford.at>
5 years agoMerge pull request #717 from whitequark/opt_lut
Clifford Wolf [Wed, 5 Dec 2018 17:02:13 +0000 (09:02 -0800)]
Merge pull request #717 from whitequark/opt_lut

Add a new opt_lut pass, which combines inefficiently packed LUTs

5 years agoMerge pull request #716 from whitequark/ice40_unlut
Clifford Wolf [Wed, 5 Dec 2018 16:59:21 +0000 (08:59 -0800)]
Merge pull request #716 from whitequark/ice40_unlut

Extract ice40_unlut pass from ice40_opt

5 years agoopt_lut: add -dlogic, to avoid disturbing logic such as carry chains.
whitequark [Wed, 5 Dec 2018 15:26:40 +0000 (15:26 +0000)]
opt_lut: add -dlogic, to avoid disturbing logic such as carry chains.

5 years agoopt_lut: always prefer to eliminate 1-LUTs.
whitequark [Wed, 5 Dec 2018 13:14:44 +0000 (13:14 +0000)]
opt_lut: always prefer to eliminate 1-LUTs.

These are always either buffers or inverters, and keeping the larger
LUT preserves more source-level information about the design.

5 years agoopt_lut: collect and display statistics.
whitequark [Wed, 5 Dec 2018 12:35:27 +0000 (12:35 +0000)]
opt_lut: collect and display statistics.

5 years agoopt_lut: refactor to use a worker. NFC.
whitequark [Wed, 5 Dec 2018 12:26:41 +0000 (12:26 +0000)]
opt_lut: refactor to use a worker. NFC.

5 years agosynth_ice40: add -relut option, to run ice40_unlut and opt_lut.
whitequark [Wed, 5 Dec 2018 00:28:03 +0000 (00:28 +0000)]
synth_ice40: add -relut option, to run ice40_unlut and opt_lut.

5 years agoopt_lut: new pass, to combine LUTs for tighter packing.
whitequark [Wed, 5 Dec 2018 00:23:22 +0000 (00:23 +0000)]
opt_lut: new pass, to combine LUTs for tighter packing.

5 years agoExtract ice40_unlut pass from ice40_opt.
whitequark [Tue, 4 Dec 2018 19:43:33 +0000 (19:43 +0000)]
Extract ice40_unlut pass from ice40_opt.

Currently, `ice40_opt -unlut` would map SB_LUT4 to $lut and convert
them back to logic immediately. This is not desirable if the goal
is to operate on $lut cells. If this is desirable, the same result
as `ice40_opt -unlut` can be achieved by running simplemap and opt
after ice40_unlut.

5 years agoMerge pull request #719 from YosysHQ/q3k/flailing-around-trying-to-fix-osx
Serge Bazanski [Wed, 5 Dec 2018 16:22:14 +0000 (17:22 +0100)]
Merge pull request #719 from YosysHQ/q3k/flailing-around-trying-to-fix-osx

Fix Travis on OSX

5 years agotravis/osx: fix, use clang instead of gcc
Sergiusz Bazanski [Wed, 5 Dec 2018 10:50:58 +0000 (11:50 +0100)]
travis/osx: fix, use clang instead of gcc

5 years agoFix typo
Clifford Wolf [Tue, 4 Dec 2018 22:30:23 +0000 (23:30 +0100)]
Fix typo

Signed-off-by: Clifford Wolf <clifford@clifford.at>
5 years agoMerge pull request #702 from smunaut/min_ce_use
Clifford Wolf [Tue, 4 Dec 2018 22:29:21 +0000 (14:29 -0800)]
Merge pull request #702 from smunaut/min_ce_use

Add option to only use DFFE is the resulting E signal would be use > N times

5 years agoChanges in GoWin synth commands and ALU primitive support
Diego H [Tue, 4 Dec 2018 02:08:35 +0000 (20:08 -0600)]
Changes in GoWin synth commands and ALU primitive support

5 years agoLeave only real black box cells
Miodrag Milanovic [Sun, 2 Dec 2018 10:57:50 +0000 (11:57 +0100)]
Leave only real black box cells

5 years agoInitial support for Anlogic FPGA
Miodrag Milanovic [Sat, 1 Dec 2018 17:28:54 +0000 (18:28 +0100)]
Initial support for Anlogic FPGA

5 years agoMerge pull request #676 from rafaeltp/master
Clifford Wolf [Sat, 1 Dec 2018 03:11:19 +0000 (04:11 +0100)]
Merge pull request #676 from rafaeltp/master

Splits SigSpec into bits before calling check_signal_in_fanout (solves #675)

5 years agoImprove ConstEval error handling for non-eval cell types
Clifford Wolf [Thu, 29 Nov 2018 04:07:40 +0000 (05:07 +0100)]
Improve ConstEval error handling for non-eval cell types

Signed-off-by: Clifford Wolf <clifford@clifford.at>
5 years agoice40: Add option to only use CE if it'd be use by more than X FFs
Sylvain Munaut [Thu, 15 Nov 2018 01:49:35 +0000 (02:49 +0100)]
ice40: Add option to only use CE if it'd be use by more than X FFs

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
5 years agodff2dffe: Add option for unmap to only remove DFFE with low CE signal use
Sylvain Munaut [Thu, 15 Nov 2018 01:48:44 +0000 (02:48 +0100)]
dff2dffe: Add option for unmap to only remove DFFE with low CE signal use

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
5 years agoMake return value of $clog2 signed
Sylvain Munaut [Sat, 24 Nov 2018 17:49:23 +0000 (18:49 +0100)]
Make return value of $clog2 signed

As per Verilog 2005 - 17.11.1.

Fixes #708

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
6 years agoAdd iteration limit to "opt_muxtree"
Clifford Wolf [Tue, 20 Nov 2018 16:56:47 +0000 (17:56 +0100)]
Add iteration limit to "opt_muxtree"

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoUpdate ABC to git rev 2ddc57d
Clifford Wolf [Tue, 13 Nov 2018 16:22:28 +0000 (17:22 +0100)]
Update ABC to git rev 2ddc57d

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoAdd "write_aiger -I -O -B"
Clifford Wolf [Mon, 12 Nov 2018 08:27:33 +0000 (09:27 +0100)]
Add "write_aiger -I -O -B"

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoMerge branch 'master' of github.com:YosysHQ/yosys
Clifford Wolf [Mon, 12 Nov 2018 08:10:25 +0000 (09:10 +0100)]
Merge branch 'master' of github.com:YosysHQ/yosys

6 years agoMerge pull request #697 from eddiehung/xilinx_ps7
Clifford Wolf [Mon, 12 Nov 2018 08:09:22 +0000 (09:09 +0100)]
Merge pull request #697 from eddiehung/xilinx_ps7

Add support for PS7 block for Xilinx

6 years agoMerge pull request #695 from daveshah1/ecp5_bb
Clifford Wolf [Mon, 12 Nov 2018 08:08:49 +0000 (09:08 +0100)]
Merge pull request #695 from daveshah1/ecp5_bb

ecp5: Adding some blackbox cells

6 years agoUpdate ABC to git rev 68da3cf
Clifford Wolf [Sun, 11 Nov 2018 18:37:31 +0000 (19:37 +0100)]
Update ABC to git rev 68da3cf

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoAdd support for Xilinx PS7 block
Eddie Hung [Sat, 10 Nov 2018 20:37:45 +0000 (12:37 -0800)]
Add support for Xilinx PS7 block

6 years agoSet Verific flag vhdl_support_variable_slice=1
Clifford Wolf [Fri, 9 Nov 2018 20:03:13 +0000 (21:03 +0100)]
Set Verific flag vhdl_support_variable_slice=1

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoecp5: Add 'fake' DCU parameters
David Shah [Fri, 9 Nov 2018 18:25:42 +0000 (18:25 +0000)]
ecp5: Add 'fake' DCU parameters

Signed-off-by: David Shah <dave@ds0.me>
6 years agoecp5: Add blackboxes for ancillary DCU cells
David Shah [Fri, 9 Nov 2018 15:18:30 +0000 (15:18 +0000)]
ecp5: Add blackboxes for ancillary DCU cells

Signed-off-by: David Shah <dave@ds0.me>
6 years agoMerge pull request #696 from arjenroodselaar/verific_darwin
Clifford Wolf [Fri, 9 Nov 2018 12:02:49 +0000 (13:02 +0100)]
Merge pull request #696 from arjenroodselaar/verific_darwin

Use appropriate static libraries when building with Verific on MacOS

6 years agoFix "make ystests" to use correct Yosys binary
Clifford Wolf [Thu, 8 Nov 2018 08:58:47 +0000 (09:58 +0100)]
Fix "make ystests" to use correct Yosys binary

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoUse appropriate static libraries when building with Verific on MacOS
Arjen Roodselaar [Thu, 8 Nov 2018 07:18:47 +0000 (23:18 -0800)]
Use appropriate static libraries when building with Verific on MacOS

6 years agoMerge pull request #693 from YosysHQ/rlimit
Clifford Wolf [Wed, 7 Nov 2018 19:16:40 +0000 (20:16 +0100)]
Merge pull request #693 from YosysHQ/rlimit

improve rlimit handling in smtio.py

6 years agoecp5: Adding some blackbox cells
David Shah [Wed, 7 Nov 2018 14:56:38 +0000 (14:56 +0000)]
ecp5: Adding some blackbox cells

Signed-off-by: David Shah <dave@ds0.me>
6 years agoLimit stack size to 16 MB on Darwin
Clifford Wolf [Wed, 7 Nov 2018 14:32:34 +0000 (15:32 +0100)]
Limit stack size to 16 MB on Darwin

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoMerge pull request #694 from trcwm/dffmap_expr_fix
Clifford Wolf [Tue, 6 Nov 2018 11:21:05 +0000 (12:21 +0100)]
Merge pull request #694 from trcwm/dffmap_expr_fix

DFFLIBMAP: changed 'missing pin' error into a warning.

6 years agoDFFLIBMAP: changed 'missing pin' error into a warning with additional reason/info.
Niels Moseley [Tue, 6 Nov 2018 11:11:52 +0000 (12:11 +0100)]
DFFLIBMAP: changed 'missing pin' error into a warning with additional reason/info.

6 years agoRun solver in non-incremental mode whem smtio.py is configured for non-incremental...
Clifford Wolf [Tue, 6 Nov 2018 10:11:05 +0000 (11:11 +0100)]
Run solver in non-incremental mode whem smtio.py is configured for non-incremental solving

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoUpdate ABC rev to 4d56acf
Clifford Wolf [Tue, 6 Nov 2018 10:10:27 +0000 (11:10 +0100)]
Update ABC rev to 4d56acf

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoFix for improved smtio.py rlimit code
Clifford Wolf [Tue, 6 Nov 2018 09:09:03 +0000 (10:09 +0100)]
Fix for improved smtio.py rlimit code

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoImprove stack rlimit code in smtio.py
Clifford Wolf [Tue, 6 Nov 2018 09:05:23 +0000 (10:05 +0100)]
Improve stack rlimit code in smtio.py

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoAllow square brackets in liberty identifiers
Clifford Wolf [Mon, 5 Nov 2018 11:33:21 +0000 (12:33 +0100)]
Allow square brackets in liberty identifiers

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoMerge pull request #691 from arjenroodselaar/stacksize
Clifford Wolf [Mon, 5 Nov 2018 08:19:56 +0000 (09:19 +0100)]
Merge pull request #691 from arjenroodselaar/stacksize

Use conservative stack size for SMT2 on MacOS

6 years agoUse conservative stack size for SMT2 on MacOS
Arjen Roodselaar [Mon, 5 Nov 2018 05:58:09 +0000 (21:58 -0800)]
Use conservative stack size for SMT2 on MacOS

6 years agoAdd warning for SV "restrict" without "property"
Clifford Wolf [Sun, 4 Nov 2018 14:57:17 +0000 (15:57 +0100)]
Add warning for SV "restrict" without "property"

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoAdd proper error message for when smtbmc "append" fails
Clifford Wolf [Sun, 4 Nov 2018 13:41:28 +0000 (14:41 +0100)]
Add proper error message for when smtbmc "append" fails

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoVarious indenting fixes in AST front-end (mostly space vs tab issues)
Clifford Wolf [Sun, 4 Nov 2018 09:19:32 +0000 (10:19 +0100)]
Various indenting fixes in AST front-end (mostly space vs tab issues)

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoMerge pull request #687 from trcwm/master
Clifford Wolf [Sun, 4 Nov 2018 09:08:33 +0000 (10:08 +0100)]
Merge pull request #687 from trcwm/master

Liberty file: error when it contains pin references to non-existing pins

6 years agoMerge pull request #688 from ZipCPU/rosenfell
Clifford Wolf [Sun, 4 Nov 2018 09:04:48 +0000 (10:04 +0100)]
Merge pull request #688 from ZipCPU/rosenfell

Make rose and fell dependent upon LSB only

6 years agoMake and dependent upon LSB only
ZipCPU [Sat, 3 Nov 2018 17:39:32 +0000 (13:39 -0400)]
Make  and  dependent upon LSB only

6 years agoLiberty file newline handling is more relaxed. More descriptive error message
Niels Moseley [Sat, 3 Nov 2018 17:38:49 +0000 (18:38 +0100)]
Liberty file newline handling is more relaxed. More descriptive error message

6 years agoReport an error when a liberty file contains pin references that reference non-existi...
Niels Moseley [Sat, 3 Nov 2018 17:07:51 +0000 (18:07 +0100)]
Report an error when a liberty file contains pin references that reference non-existing pins

6 years agoDo not generate "reg assigned in a continuous assignment" warnings for "rand reg"
Clifford Wolf [Thu, 1 Nov 2018 14:25:24 +0000 (15:25 +0100)]
Do not generate "reg assigned in a continuous assignment" warnings for "rand reg"

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoAdd support for signed $shift/$shiftx in smt2 back-end
Clifford Wolf [Thu, 1 Nov 2018 10:40:58 +0000 (11:40 +0100)]
Add support for signed $shift/$shiftx in smt2 back-end

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoMerge branch 'igloo2'
Clifford Wolf [Wed, 31 Oct 2018 14:37:39 +0000 (15:37 +0100)]
Merge branch 'igloo2'

6 years agoFix sf2 LUT interface
Clifford Wolf [Wed, 31 Oct 2018 14:36:53 +0000 (15:36 +0100)]
Fix sf2 LUT interface

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoBasic SmartFusion2 and IGLOO2 synthesis support
Clifford Wolf [Wed, 31 Oct 2018 14:28:57 +0000 (15:28 +0100)]
Basic SmartFusion2 and IGLOO2 synthesis support

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoMerge pull request #680 from jburgess777/fix-empty-string-back-assert
Clifford Wolf [Tue, 30 Oct 2018 10:25:07 +0000 (11:25 +0100)]
Merge pull request #680 from jburgess777/fix-empty-string-back-assert

Avoid assert when label is an empty string

6 years agoAvoid assert when label is an empty string
Jon Burgess [Sun, 28 Oct 2018 14:49:09 +0000 (14:49 +0000)]
Avoid assert when label is an empty string

Calling back() on an empty string is not allowed and triggers
an assert with recent gcc:

$ cd manual/PRESENTATION_Intro
$ ../../yosys counter.ys
...
/usr/include/c++/8/bits/basic_string.h:1136: std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::reference std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::back() [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::reference = char&]: Assertion '!empty()' failed.

802             if (label.back() == ':' && GetSize(label) > 1)
(gdb) p label
$1 = ""

6 years agoMerge pull request #678 from whentze/master
Clifford Wolf [Thu, 25 Oct 2018 11:23:26 +0000 (13:23 +0200)]
Merge pull request #678 from whentze/master

Fix unhandled std::out_of_range in run_frontend() due to integer underflow

6 years agoFix minor typo in error message
Clifford Wolf [Thu, 25 Oct 2018 11:20:00 +0000 (13:20 +0200)]
Fix minor typo in error message

Signed-off-by: Clifford Wolf <clifford@clifford.at>
6 years agoMerge pull request #679 from udif/pr_syntax_error
Clifford Wolf [Thu, 25 Oct 2018 11:18:59 +0000 (13:18 +0200)]
Merge pull request #679 from udif/pr_syntax_error

More meaningful SystemVerilog/Verilog parser error messages