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1629 Commits

Author SHA1 Message Date
Zachary Snow 26a6c60478 Add test for typenames using constants shadowed later on 
This possible edge case came up while reviewing #3555. It is currently
handled correctly, but there is no clear test coverage.
 2023-02-12 17:03:37 -05:00
Jannis Harder 6d021f04d4 tests: Fix path of yosys invocation in xprop tests 
For now xprop test failures are still expected and ignored, but without
this change, they did not even run unless the yosys build was in path.
 2023-02-10 19:17:16 +01:00
Jannis Harder d31d5da69f tests: in xprop tests, use MAKE variable if set 2023-02-10 15:01:04 +01:00
Dag Lem 777c589e85 Handle range offsets in packed arrays within packed structs 
This brings the metadata for packed arrays in packed structs
in line with the metadata for unpacked arrays, and correctly
handles the case when both lsb and msb in an address range are
non-zero.
 2023-02-05 17:09:51 +01:00
Jannis Harder c235802f4a
Merge pull request #3650 from jix/rtlil_roundtrip_z_bits 
backends/rtlil: Do not shorten a value with z bits to 'x
 2023-01-30 16:14:24 +01:00
N. Engelhardt ecfa7e9fbc add pmux option to bmuxmap for better fsm detection with verific frontend 2023-01-30 16:12:53 +01:00
Dag Lem 26db5a11d3 Resolve struct member package types 2023-01-29 13:51:44 -05:00
Dag Lem db13c6df2b
Handle struct members of union type (#3641) 2023-01-29 13:45:45 -05:00
Jannis Harder b08a880704 backends/rtlil: Do not shorten a value with z bits to 'x 2023-01-29 14:02:25 +01:00
Lofty 822c7b0341 muxcover: do not add decode muxes with x inputs 2023-01-26 05:19:45 +00:00
Jannis Harder 5abaa59080
Merge pull request #3537 from jix/xprop 
New xprop pass
 2023-01-11 16:26:04 +01:00
Jannis Harder 3ebc50dee4
Merge pull request #3467 from jix/fix_cellarray_simplify 
simplify: Do not recursively simplify AST_CELL within AST_CELLARRAY
 2022-12-19 16:05:13 +01:00
Jannis Harder cf3570abde simplify: regression test for AST_CELLARRAY simplification issue 2022-12-07 18:41:55 +01:00
Dag Lem f94eec952f Support for packed multidimensional arrays within packed structs 2022-12-03 19:54:47 +01:00
Jannis Harder 4a2b7287ca
Merge pull request #3551 from daglem/struct-array-swapped-range 
Support for arrays with swapped ranges within structs
 2022-12-01 00:58:32 +01:00
Jannis Harder ce708122a5 New xprop pass to encode 3-valued x-propagation using 2-valued logic 2022-11-30 19:01:28 +01:00
Jannis Harder 661fa5ff92 simplemap: Map `$xnor` to `$_XNOR_` cells 
The previous mapping to `$_XOR_` and `$_NOT_` predates the addition of
the `$_XNOR_` cell.
 2022-11-29 19:06:45 +01:00
Dag Lem a460e0b31c Tests for unpacked arrays in packed structs are for the Yosys frontend only 2022-11-23 16:37:51 +01:00
Dag Lem ddb12148e7 Support for swapped ranges in second array dimension 2022-11-23 16:31:08 +01:00
Jannis Harder 239ecf9185 Merge branch 'zachjs-master' 2022-11-21 17:47:43 +01:00
gatecat b6467f0801 fabulous: Allow adding extra custom prims and map rules 
Signed-off-by: gatecat <gatecat@ds0.me>
 2022-11-17 13:34:58 +01:00
gatecat f111bbdf40 fabulous: improvements to the pass 
Signed-off-by: gatecat <gatecat@ds0.me>
 2022-11-17 13:34:58 +01:00
Dag Lem bab88630c2 Support for arrays with swapped ranges within structs 
This also corrects the implementation of C type arrays within structs.

Fixes #3550
 2022-11-12 08:48:25 +01:00
Zachary Snow 71e7e09092 verilog: Support module-scoped task/function calls 
This is primarily intended to enable the standard-permitted use of
module-scoped identifiers to refer to tasks and non-constant functions.
As a side-effect, this also adds support for the non-standard use of
module-scoped identifiers referring to constant functions, a feature
that is supported in some other tools, including Iverilog.
 2022-10-29 15:14:11 -04:00
Lloyd Parkes 49945ab1c2 Replace GNU specific invocation of basename(1) with the equivalent 
POSIX one. The tests now complete on BSD as well as GNU/Linux.
 2022-10-23 11:02:18 +13:00
Jannis Harder 4d334fd3e3 smt2/smtbmc: Fix FF witness data for fine grained or multi chunk FFs 
The witness metadata was missing fine grained FFs completely and for
coarse grained FFs where the output connection has multiple chunks it
lacked the offset of the chunk within the SMT expression. This fixes
both, the later by adding an "smtoffset" field to the metadata.
 2022-10-12 19:48:36 +02:00
Jannis Harder fcf742837e
Merge pull request #3502 from jix/equiv_opt_fixes 
equiv_opt and clk2fflogic fixes
 2022-10-11 12:02:16 +02:00
Miodrag Milanović e8ce9442a6
Merge pull request #3452 from ALGCDG/master 
Add BLIF names command input plane size check
 2022-10-10 16:29:27 +02:00
Jannis Harder 0113f44faa Reenable existing equiv_opt tests 2022-10-07 16:04:51 +02:00
Jannis Harder 81906aa627 Fix tests for check in equiv_opt 2022-10-07 16:04:51 +02:00
Claire Xenia Wolf f0478c520d Re-enable opt_dff_sr equiv_opt checks 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2022-10-07 16:04:51 +02:00
Miodrag Milanovic 1ecf6aee9b Test fixes for latest iverilog 2022-09-21 15:46:43 +02:00
Miodrag Milanovic 5b5fe76966 Add test for bug 3462 2022-08-29 10:10:09 +02:00
Archie 15a0697c70 Adding check for BLIF names command input plane size. 2022-08-21 23:18:20 -05:00
Jannis Harder 5142fb3b5c write_aiger: Fix non-$_FF_ FFs 
This broke while switching sby's formal flows to always use $_FF_'s.
 2022-08-18 13:56:22 +02:00
Jannis Harder f041e36c6e smtbmc: Add native json based witness format + smt2 backend support 
This adds a native json based witness trace format. By having a common
format that includes everything we support, and providing a conversion
utility (yosys-witness) we no longer need to implement every format for
every tool that deals with witness traces, avoiding a quadratic
opportunity to introduce subtle bugs.

Included:

  * smt2: New yosys-smt2-witness info lines containing full hierarchical
    paths without lossy escaping.
  * yosys-smtbmc --dump-yw trace.yw: Dump results in the new format.
  * yosys-smtbmc --yw trace.yw: Read new format as constraints.
  * yosys-witness: New tool to convert witness formats.
    Currently this can only display traces in a human-readable-only
    format and do a passthrough read/write of the new format.
  * ywio.py: Small python lib for reading and writing the new format.
    Used by yosys-smtbmc and yosys-witness to avoid duplication.
 2022-08-16 13:37:30 +02:00
N. Engelhardt 63fca0dbc2
Merge pull request #3277 from YosysHQ/lofty/rename-scramble_name 2022-08-11 12:06:04 +02:00
Miodrag Milanovic f4a1906721 support file locations containing spaces 2022-08-08 20:30:50 +02:00
Lofty a48dcd1d40 rename: add -scramble-name option to randomly rename selections 2022-08-08 16:03:28 +01:00
gatecat 48efc9b75c gatemate: Add test for LUT tree mapping 
Signed-off-by: gatecat <gatecat@ds0.me>
 2022-06-27 10:09:48 +01:00
George Rennie fbf5d89587 equiv_make: Add -make_assert option 
This adds a -make_assert flag to equiv_make. When used, the pass generates
$eqx and $assert cells to encode equivalence instead of $equiv.
 2022-06-24 00:17:02 +01:00
Archie f69c2c802c Adding expected error message. 2022-06-22 00:34:49 +01:00
Archie c8cd4f468a Adding testcase for issue 3374 2022-06-22 00:34:49 +01:00
George Rennie 5dfad5101d chformal: Rename -coverprecond to -coverenable 2022-06-18 18:28:12 +01:00
Jannis Harder e39c422734 chformal: Test -coverprecond and reuse the src attribute 2022-06-18 18:19:26 +01:00
Jannis Harder ac22f1764d smt2: emit smtlib2_comb_expr outputs after all inputs 2022-06-07 19:06:45 +02:00
Jacob Lifshay 0b0123e003 don't use sed -i because it won't work on macos 2022-06-03 01:09:57 -07:00
Jacob Lifshay b7c19b1c88 smtlib2_module: try to fix test on macos 2022-06-02 23:12:07 -07:00
Jacob Lifshay cd57c5adb3 smt2: Add smtlib2_comb_expr attribute to allow user-selected smtlib2 expressions 2022-06-02 22:37:29 -07:00
Zachary Snow a650d9079f verilog: fix width/sign detection for functions 2022-05-30 16:45:39 -04:00
Jannis Harder 4bfaaea0d5 verilog: fix size and signedness of array querying functions 
genrtlil.cc and simplify.cc had inconsistent and slightly broken
handling of signedness for array querying functions. These functions are
defined to return a signed result. Simplify always produced an unsigned
and genrtlil always a signed 32-bit result ignoring the context.

Includes tests for the the relvant edge cases for context dependent
conversions.
 2022-05-30 09:11:31 -04:00
Jannis Harder b75fa62e9b verilog: fix $past's signedness 2022-05-25 16:32:08 -04:00
Jannis Harder cffec1f95f verilog: fix signedness when removing unreachable cases 2022-05-24 23:03:31 -04:00
Marcelina Kościelnicka 606f1637ae Add memory_bmux2rom pass. 2022-05-18 22:48:55 +02:00
Marcelina Kościelnicka 982a11c709 Add memory_libmap tests. 2022-05-18 17:32:56 +02:00
Marcelina Kościelnicka 9d11575856 efinix: Use `memory_libmap` pass. 2022-05-18 17:32:56 +02:00
Marcelina Kościelnicka d7dc2313b9 ice40: Use `memory_libmap` pass. 2022-05-18 17:32:56 +02:00
Marcelina Kościelnicka 3b2f95953c xilinx: Use `memory_libmap` pass. 2022-05-18 17:32:56 +02:00
Marcelina Kościelnicka 0a8eaca322 nexus: Use `memory_libmap` pass. 2022-05-18 17:32:56 +02:00
Marcelina Kościelnicka a04b025abf ecp5: Use `memory_libmap` pass. 2022-05-18 17:32:56 +02:00
Marcelina Kościelnicka 9450f308f0 proc_rom: Add special handling of const-0 address bits. 2022-05-18 17:32:30 +02:00
Jannis Harder 2864f2826a
Merge pull request #3314 from jix/sva_value_change_logic_wide 
verific: Use new value change logic also for $stable of wide signals.
 2022-05-16 16:15:04 +02:00
Marcelina Kościelnicka 990c9b8e11 Add proc_rom pass. 2022-05-13 00:37:14 +02:00
Jannis Harder fada77b8cf verific: Use new value change logic also for $stable of wide signals. 
I missed this in the previous PR.
 2022-05-11 13:05:27 +02:00
Jannis Harder 587e09d551
Merge pull request #3305 from jix/sva_value_change_logic 
verific: Improve logic generated for SVA value change expressions
 2022-05-09 16:40:34 +02:00
Jannis Harder 5ca2ee0c31
Merge pull request #3297 from jix/sva_nested_clk_else 
verific: Fix conditions of SVAs with explicit clocks within procedures
 2022-05-09 16:07:39 +02:00
Jannis Harder a855d62b42 verific: Improve logic generated for SVA value change expressions 
The previously generated logic assumed an unconstrained past value in
the initial state and did not handle 'x values. While the current formal
verification flow uses 2-valued logic, SVA value change expressions
require a past value of 'x during the initial state to behave in the
expected way (i.e. to consider both an initial 0 and an initial 1 as
$changed and an initial 1 as $rose and an initial 0 as $fell).

This patch now generates logic that at the same time

	a) provides the expected behavior in a 2-valued logic setting, not
	   depending on any dont-care optimizations, and

	b) properly handles 'x values in yosys simulation
 2022-05-09 15:04:01 +02:00
Miodrag Milanovic 600079e281 Fix running sva tests 2022-05-09 09:01:57 +02:00
Marcelina Kościelnicka 77b1dfd8c3 opt_mem: Remove constant-value bit lanes. 2022-05-07 23:13:16 +02:00
Jannis Harder 96f64f4788 verific: Fix conditions of SVAs with explicit clocks within procedures 
For SVAs that have an explicit clock and are contained in a procedure
which conditionally executes the assertion, verific expresses this using
a mux with one input connected to constant 1 and the other output
connected to an SVA_AT. The existing code only handled the case where
the first input is connected to 1. This patch also handles the other
case.
 2022-05-03 14:13:08 +02:00
Zachary Snow bf15dbd0f7 sv: fix always_comb auto nosync for nested and function blocks 2022-04-05 14:43:48 -06:00
Jannis Harder ca5b910296 opt_merge: Add `-keepdc` option required for formal verification 
The `-keepdc` option prevents merging flipflops with dont-care bits in
their initial value, as, in general, this is not a valid transform for
formal verification.

The keepdc option of `opt` is passed along to `opt_merge` now.
 2022-04-01 21:03:20 +02:00
Miodrag Milanovic bbf65702a1 Fix valgrind tests when using verific 2022-03-30 17:25:53 +02:00
Miodrag Milanovic 27c5bafc95 Proper example code 2022-03-14 15:39:11 +01:00
Lofty 9f7a55c99f intel_alm: M10K write-enable is negative-true 2022-03-09 20:18:06 +00:00
Miodrag Milanović c3124023e4
Merge pull request #3207 from nakengelhardt/json_escape_quotes 
fix handling of escaped chars in json backend and frontend (mostly)
 2022-03-04 13:57:32 +01:00
N. Engelhardt 8fd1b06249 fix handling of escaped chars in json backend and frontend 2022-02-18 17:13:09 +01:00
Miodrag Milanovic 21baf48e04 test dlatchsr and adlatch 2022-02-16 13:58:51 +01:00
Miodrag Milanovic 271ac28b41 Added test cases 2022-02-16 13:27:59 +01:00
Zachary Snow 15a4e900b2 verilog: support for time scale delay values 2022-02-14 15:58:31 +01:00
Kamil Rakoczy 68c67c40ec
Fix access to whole sub-structs (#3086) 
* Add support for accessing whole struct
* Update tests

Signed-off-by: Kamil Rakoczy <krakoczy@antmicro.com>
 2022-02-14 14:34:20 +01:00
Zachary Snow 15eb66b99d verilog: fix dynamic dynamic range asgn elab 2022-02-11 22:54:55 +01:00
Zachary Snow 90bb47d181 verilog: fix const func eval with upto variables 2022-02-11 21:01:51 +01:00
Marcelina Kościelnicka f61f2a4078 gowin: Fix LUT RAM inference, add more models. 2022-02-09 09:04:34 +01:00
Miodrag Milanović d7f7227ce8
Merge pull request #3185 from YosysHQ/micko/co_sim 
Add co-simulation in sim pass
 2022-02-07 16:36:43 +01:00
Miodrag Milanovic 6db23de7b1 bug fix and cleanups 2022-02-04 10:01:06 +01:00
Miodrag Milanovic 7ef6da4c7d Add test cases for co-simulation 2022-02-02 13:22:44 +01:00
Marcelina Kościelnicka 07a657fb0c opt_reduce: Add $bmux and $demux optimization patterns. 2022-01-30 03:37:52 +01:00
Miodrag Milanović 4525e419f6
Merge pull request #3120 from Icenowy/anlogic-bram 
anlogic: support BRAM mapping
 2022-01-19 08:49:58 +01:00
Zachary Snow aa35f24290 sv: auto add nosync to certain always_comb local vars 
If a local variable is always assigned before it is used, then adding
nosync prevents latches from being needlessly generated.
 2022-01-07 22:53:22 -07:00
Zachary Snow 828e85068f sv: fix size cast internal expression extension 2022-01-07 21:21:02 -07:00
Zachary Snow 66447e8faf logger: fix unmatched expected warnings and errors 
- Prevent unmatched expected error patterns from self-matching
- Prevent infinite recursion on unmatched expected warnings
- Always print the error message for unmatched error patterns
- Add test coverage for all unmatched message types
- Add test coverage for excess matched logs and warnings
 2022-01-04 13:39:34 -07:00
Zachary Snow e0e4dfb55e fix iverilog compatibility for new case expr tests 2022-01-03 12:11:41 -07:00
Zachary Snow 207af4196b fixup verilog doubleslash test 
- add generated doubleslash.v to .gitignore
- ensure backend verilog can be read again
 2022-01-03 08:17:46 -07:00
Zachary Snow 8c509a5659 sv: fix size cast clipping expression width 2022-01-03 08:17:35 -07:00
Marcelina Kościelnicka f84c9d8e17 memory_share: Fix SAT-based sharing for wide ports. 
Fixes #3117.
 2021-12-20 18:40:14 +01:00
Zachary Snow 7608985d2c fix width detection of array querying function in case and case item expressions 
I also removed the unnecessary shadowing of `width_hint` and `sign_hint`
in the corresponding case in `simplify()`.
 2021-12-17 21:22:08 -07:00
Icenowy Zheng c2b7ad3b28 anlogic: support BRAM mapping 
Anlogic FPGAs all have two kinds of BRAMs, one is 9bit*1K when being
true dual port (or 18bit*512 when simple dual port), the other is
16bit*2K.

Supports mapping of these two kinds of BRAMs. 9Kbit BRAM in SDP mode and
32Kbit BRAM with 8bit width are not support yet.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
 2021-12-17 20:28:22 +08:00
Thomas Sailer 4cd2f03e36 preprocessor: do not destroy double slash escaped identifiers 
The preprocessor currently destroys double slash containing escaped
identifiers (for example \a//b ). This is due to next_token trying to
convert single line comments (//) into /* */ comments. This then leads
to an unintuitive error message like this:
ERROR: syntax error, unexpected '*'

This patch fixes the error by recognizing escaped identifiers and
returning them as single token. It also adds a testcase.
 2021-12-15 18:06:02 -07:00
Claire Xenia Wolf d6e4d3f1ba Fix the tests we just broke 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2021-12-10 00:22:37 +01:00