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1662 Commits

Author SHA1 Message Date
Jannis Harder fb1c2be76b verilog: Support void functions 
The difference between void functions and tasks is that always_comb's
implicit sensitivity list behaves as if functions were inlined, but
ignores signals read only in tasks. This only matters for event based
simulation, and for synthesis we can treat a void function like a task.
 2023-03-20 12:52:46 +01:00
Miodrag Milanovic 61da330a38 Update tests 2023-03-20 09:58:41 +01:00
Jannis Harder 390d1c583a verific: Fix enum_values support and signed attribute values 
This uses the same constant parsing for enum_values and for attributes
and extends it to handle signed values as those are used for enums that
implicitly use the int type.
 2023-03-15 09:51:36 +01:00
Jannis Harder c50f641812
Merge pull request #3682 from daglem/struct-member-out-of-bounds 
Out of bounds checking for struct/union members
 2023-03-10 16:14:56 +01:00
Dag Lem 1af7d6121f Added test for dynamic indexing within struct members 2023-03-08 20:25:39 +01:00
Dag Lem 0d3423ddea Index struct/union members within corresponding wire chunks 
This guards against access to bits outside of struct/union
members via dynamic indexing.
 2023-03-05 14:54:17 +01:00
Miodrag Milanović 21e87f7986
Merge pull request #3646 from YosysHQ/lofty/fix-3591 
muxcover: do not add decode muxes with x inputs
 2023-02-27 16:26:57 +01:00
N. Engelhardt 842cdad575
Merge pull request #3674 from YosysHQ/fix_wide_case 2023-02-27 16:04:11 +01:00
gatecat 2ab3747cc9 fabulous: Add support for mapping carry chains 
Signed-off-by: gatecat <gatecat@ds0.me>
 2023-02-27 09:50:34 +01:00
Miodrag Milanovic d8cefec169 Added ranged case check 2023-02-27 09:24:04 +01:00
Miodrag Milanovic 53a4f0fb56 Add test example 2023-02-27 09:24:04 +01:00
KrystalDelusion f80920bd9f Genericising bug1836.ys 2023-02-21 05:23:16 +13:00
KrystalDelusion 445a801a85 bug3205.ys removed 
Made redundant by TDP test(s) in memories.ys
 2023-02-21 05:23:16 +13:00
KrystalDelusion 51c2d476c2 Removing extra `default_nettype` lines 2023-02-21 05:23:16 +13:00
KrystalDelusion 8f6a06951c Fix for sync_ram_sdp not being final module 
Explicitly declare -top in synth_intel_alm.
 2023-02-21 05:23:16 +13:00
KrystalDelusion 7f033d3c1f More tests in memlib/generate.py 
Covers most of the todo list, at least functionally.  Some minor issues with not always using hardware features.
 2023-02-21 05:23:15 +13:00
KrystalDelusion af1b9c9e07 Tests for ram_style = "huge" 
iCE40 SPRAM and Xilinx URAM
 2023-02-21 05:23:15 +13:00
KrystalDelusion de2f140c09 Testing TDP synth mapping 
New common sync_ram_tdp.
Used in ecp5 and gatemate mem*.ys.
 2023-02-21 05:23:15 +13:00
KrystalDelusion 48f4e09202 Asymmetric port ram tests with Xilinx 
Uses verilog code from User Guide 901 (2021.1)
 2023-02-21 05:23:14 +13:00
KrystalDelusion ac5fa9a838 Addings tests for #1836 and #3205 2023-02-21 05:23:14 +13:00
Dag Lem 79043cb849 Out of bounds checking for struct/union members 
Currently, only constant indices are checked.
 2023-02-19 23:25:08 +01:00
Jannis Harder 1cedad7a68
Merge pull request #3675 from daglem/struct-item-queries 
Support for data and array queries on struct/union item expressions
 2023-02-15 13:33:34 +01:00
Jannis Harder 68480dfa19
Merge pull request #3671 from zachjs/master 
Add test for typenames using constants shadowed later on
 2023-02-15 13:04:43 +01:00
Dag Lem f8219289b2 Corrected tests for data and array queries on struct/union item expressions 2023-02-15 12:36:29 +01:00
Dag Lem c1e12877f0 Support for data and array queries on struct/union item expressions 
For now, $bits, $left, $right, $low, $high, and $size are supported.
 2023-02-15 11:44:24 +01:00
Jannis Harder 53bda9de54
Merge pull request #3661 from daglem/struct-array-range-offset 
Handle range offsets in packed arrays within packed structs
 2023-02-15 11:21:56 +01:00
Jannis Harder ec94703619
Merge pull request #2995 from georgerennie/cover_precond 
chformal: Add -coverenable option
 2023-02-14 17:46:31 +01:00
Jannis Harder 85f611fb23
Merge pull request #3126 from georgerennie/equiv_make_assertions 
equiv_make: Add -make_assert option
 2023-02-14 17:15:55 +01:00
Jannis Harder d2032ac6fd
Merge pull request #3669 from jix/fix-xprop-tests-yosys-call 
tests: Fix path of yosys invocation in xprop tests
 2023-02-13 17:55:36 +01:00
Jannis Harder 55ad3fe6c7 xprop tests: Make iverilog invocation more portable 2023-02-13 16:54:11 +01:00
Jannis Harder 2a68eee5f1 xprop: Test fixes and abort on test failure 
Use `$finish(0)` to silently exit even when using recent iverlog
versions. Run `write_verilog -noexpr` before `write_verilog` as the
latter can modify the design.

This also enables checking the tests results, as xprop should be in a
state where the existing tests pass.
 2023-02-13 14:05:16 +01:00
Jannis Harder 9f20beb7df xprop: Smaller subset of tests to run by default 2023-02-13 14:02:02 +01:00
Dag Lem 615adc4253
Resolve package types in interfaces (#3658) 
* Resolve package types in interfaces
* Added test for resolving of package types in interfaces
 2023-02-12 18:25:39 -05:00
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