Kazuki Sakamoto
429d37ff41
static cast: simplify
2020-06-19 19:09:43 -07:00
Kazuki Sakamoto
185bbbe681
static cast: support changing size and signedness
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Support SystemVerilog Static Cast
- size
- signedness
- (type is not supposted yet)
Fix #535
2020-06-19 17:39:20 -07:00
whitequark
118e4caa37
Remove YS_ATTRIBUTE(unused) where present just for log_assert()/log_debug().
2020-06-19 15:48:58 +00:00
clairexen
5c426d2bff
Merge pull request #2112 from YosysHQ/claire/fix2040
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Add latch detection for use_case_method in part-select write
2020-06-09 18:27:59 +02:00
Peter Crozier
f80b09fc58
Support 2D packed bit arrays in struct/union.
2020-06-09 13:52:09 +01:00
Peter Crozier
01ec681373
Support 2D bit arrays in structures. Optimise array indexing.
2020-06-08 20:34:52 +01:00
Peter Crozier
76c499db71
Support packed arrays in struct/union.
2020-06-07 18:33:11 +01:00
Claire Wolf
7ad0c49905
Add latch detection for use_case_method in part-select write, fixes #2040
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Signed-off-by: Claire Wolf <claire@symbioticeda.com>
2020-06-04 23:25:59 +02:00
Peter Crozier
0d3f7ea011
Merge branch 'master' into struct
2020-06-03 17:19:28 +01:00
clairexen
0a14e1e837
Merge pull request #2029 from whitequark/fix-simplify-memory-sv_logic
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ast/simplify: don't bitblast async ROMs declared as `logic`
2020-05-29 16:52:11 +02:00
Marcelina Kościelnicka
aee439360b
Add force_downto and force_upto wire attributes.
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Fixes #2058 .
2020-05-19 01:42:40 +02:00
Claire Wolf
ee0beb481d
Merge pull request #2027 from YosysHQ/eddie/verilog_neg_upto
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ast: swap range regardless of range_left >= 0
2020-05-14 18:06:18 +02:00
Peter Crozier
f482c9c016
Generalise structs and add support for packed unions.
2020-05-12 14:25:33 +01:00
Peter Crozier
0b6b47ca67
Implement SV structs.
2020-05-08 14:40:49 +01:00
whitequark
ebfdf61eb9
Merge pull request #2022 from Xiretza/fallthroughs
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Avoid switch fall-through warnings
2020-05-08 05:30:32 +00:00
Claire Wolf
0610424940
Merge pull request #2005 from YosysHQ/claire/fix1990
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Add "nowrshmsk" attribute, fix shift-and-mask bit slice write for signed offset
2020-05-07 18:11:48 +02:00
Xiretza
695150b037
Add YS_FALLTHROUGH macro to mark case fall-through
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C++17 introduced [[fallthrough]], GCC and clang had their own vendored
attributes before that. MSVC doesn't seem to have such a warning at all.
2020-05-07 13:39:34 +02:00
Eddie Hung
283b1130a6
Merge pull request #2025 from YosysHQ/eddie/frontend_cleanup
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frontend: cleanup to use more ID::*, more dict<> instead of map<>
2020-05-05 07:59:40 -07:00
whitequark
66d0ed2bcc
ast/simplify: don't bitblast async ROMs declared as `logic`.
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Fixes #2020 .
2020-05-05 04:16:59 +00:00
Eddie Hung
e936ac61ea
ast: swap range regardless of range_left >= 0
2020-05-04 12:18:20 -07:00
Eddie Hung
22bf22fab4
frontend: cleanup to use more ID::*, more dict<> instead of map<>
2020-05-04 10:48:37 -07:00
Eddie Hung
eca9fc01a7
verilog: set src attribute for primitives
2020-05-04 10:22:05 -07:00
Claire Wolf
589ed2d970
Add AST_SELFSZ and improve handling of bit slices
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Signed-off-by: Claire Wolf <claire@symbioticeda.com>
2020-05-02 11:21:01 +02:00
Claire Wolf
bbbce0d1c5
Add "nowrshmsk" attribute, fix shift-and-mask bit slice write for signed offset, fixes #1990
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Signed-off-by: Claire Wolf <claire@symbioticeda.com>
2020-05-02 11:21:01 +02:00
Claire Wolf
9e1afde7a0
Merge pull request #1851 from YosysHQ/claire/bitselwrite
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Improved rewrite code for writing to bit slice
2020-04-21 18:46:52 +02:00
Claire Wolf
35990b95ec
Extend support for format strings in Verilog front-end
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Signed-off-by: Claire Wolf <claire@symbioticeda.com>
2020-04-18 14:08:51 +02:00
Claire Wolf
e86ba3b94d
Make mask-and-shift the default for bitselwrite
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Signed-off-by: Claire Wolf <claire@symbioticeda.com>
2020-04-16 12:11:52 +02:00
Claire Wolf
e1fb12a4b9
Add LookaheadRewriter for proper bitselwrite support
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Signed-off-by: Claire Wolf <claire@symbioticeda.com>
2020-04-16 12:11:07 +02:00
David Shah
4d02505820
ast: Fix handling of identifiers in the global scope
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Signed-off-by: David Shah <dave@ds0.me>
2020-04-16 10:30:07 +01:00
Claire Wolf
4711fea6c0
Improved rewrite code for writing to bit slice (disabled for now)
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This adds the new rewrite rule. But it's still missing a check that makes
sure the new rewrite rule is actually a valid substitute in the always
block being processed. Therefore the new rewrite rule is just disabled
for now.
Signed-off-by: Claire Wolf <claire@symbioticeda.com>
2020-04-15 17:44:37 +02:00
whitequark
2d436bc4f1
Merge pull request #1918 from whitequark/simplify-improve_enum
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ast/simplify: improve enum handling
2020-04-15 14:16:50 +00:00
whitequark
2106f78bb1
ast/simplify: improve enum handling.
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Before this commit, enum values were serialized as attributes of form
\enum_<width>_<value>
where <value> was a decimal signed integer.
This has multiple drawbacks:
* Enums with large values would be hard to process for downstream
tooling that cannot parse arbitrary precision decimals. (In fact
Yosys also did not correctly process enums with large values,
and would overflow `int`.)
* Enum value attributes were not confined to their own namespace,
making it harder for downstream tooling to enumerate all such
attributes, as opposed to looking up any specific value.
* Enum values could not include x or z, which are explicitly
permitted in the SystemVerilog standard.
After this commit, enum values are serialized as attributes of form
\enum_value_<value>
where <value> is a bit sequence of the appropriate width.
2020-04-15 14:14:50 +00:00
whitequark
f41c7ccfff
Merge pull request #1879 from jjj11x/jjj11x/package_decl
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support using previously declared types/localparams/parameters in package
2020-04-14 12:40:00 +00:00
Jeff Wang
dbfd6b7530
duplicated enum item names should result in an error
2020-04-07 02:30:11 -04:00
Jeff Wang
249876b614
support using previously declared types/localparams/params in package
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(parameters in systemverilog packages can't actually be overridden, so
allowing parameters in addition to localparams doesn't actually add any
new functionality, but it's useful to be able to use the parameter
keyword also)
2020-04-07 00:38:15 -04:00
Eddie Hung
cf716e1fff
Merge pull request #1853 from YosysHQ/eddie/fix_dynslice
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ast: cap dynamic range select to size of signal, suppresses warnings
2020-04-02 12:27:10 -07:00
Eddie Hung
956ecd48f7
kernel: big fat patch to use more ID::*, otherwise ID(*)
2020-04-02 09:51:32 -07:00
Eddie Hung
fdafb74eb7
kernel: use more ID::*
2020-04-02 07:14:08 -07:00
Eddie Hung
c22fb76664
ast: cap dynamic range select to size of signal, suppresses warnings
2020-04-01 09:59:23 -07:00
Claire Wolf
926a010b49
Merge pull request #1848 from YosysHQ/eddie/fix_dynslice
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ast: simplify to fully populate dynamic slicing case transformation
2020-04-01 08:38:14 +02:00
Eddie Hung
5132f4099b
ast: simplify to fully populate dynamic slicing case transformation
2020-03-31 11:52:14 -07:00
Claire Wolf
1bf2bdf05b
Merge pull request #1607 from whitequark/simplify-simplify-meminit
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ast: avoid intermediate wires/assigns when lowering to AST_MEMINIT
2020-03-27 17:28:26 +01:00
Eddie Hung
43092f063f
Fix NDEBUG warnings
2020-03-19 08:48:39 -07:00
huaixv
cd82ccd258
Add precise locations for asserts
2020-03-19 10:22:07 +08:00
Claire Wolf
b597f85b13
Merge pull request #1718 from boqwxp/precise_locations
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Closes #1717 . Add more precise Verilog source location information to AST and RTLIL nodes.
2020-03-03 08:38:32 -08:00
Claire Wolf
91892465e1
Merge pull request #1681 from YosysHQ/eddie/fix1663
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verilog: instead of modifying localparam size, extend init constant expr
2020-03-03 08:34:31 -08:00
Eddie Hung
825b96fdcf
Comment out log()
2020-02-27 16:53:49 -08:00
Alberto Gonzalez
f0afd65035
Closes #1717 . Add more precise Verilog source location information to AST and RTLIL nodes.
2020-02-23 07:22:26 +00:00
Claire Wolf
cd044a2bb6
Merge pull request #1642 from jjj11x/jjj11x/sv-enum
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Enum support
2020-02-20 18:17:25 +01:00
Jeff Wang
a31ba8e5d5
remove unnecessary blank line
2020-02-17 04:42:49 -05:00
Jeff Wang
d12ba42a74
add attributes for enumerated values in ilang
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- information also useful for strongly-typed enums (not implemented)
- resolves enum values in ilang part of #1594
- still need to output enums to VCD (or better yet FST) files
2020-02-17 04:42:42 -05:00
Jeff Wang
6320f2692b
separate out enum_item/param implementation when they should be different
2020-02-17 04:42:30 -05:00
whitequark
c34d7b13f4
ast: avoid intermediate wires/assigns when lowering to AST_MEMINIT.
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Before this commit, every initial assignment to a memory generated
two wires and four assigns in a process. For unknown reasons (I did
not investigate), large amounts of assigns cause quadratic slowdown
later in the AST frontend, in processAst/removeSignalFromCaseTree.
As a consequence, common and reasonable Verilog code, such as:
reg [`WIDTH:0] mem [0:`DEPTH];
integer i; initial for (i = 0; i <= `DEPTH; i++) mem[i] = 0;
took extremely long time to be processed; around 80 s for a 8-wide,
8192-deep memory.
After this commit, initial assignments where address and/or data are
constant (after `generate`) do not incur the cost of intermediate
wires; expressions like `mem[i+1]=i^(i<<1)` are considered constant.
This results in speedups of orders of magnitude for common memory
sizes; it now takes merely 0.4 s to process a 8-wide, 8192-deep
memory, and only 5.8 s to process a 8-wide, 131072-deep one.
As a bonus, this change also results in nontrivial speedups later
in the synthesis pipeline, since pass sequencing issues meant that
all of these intermediate wires were subject to transformations such
as width reduction, even though they existed solely to be constant
folded away in `memory_collect`.
2020-02-07 00:41:54 +00:00
Rodrigo Alejandro Melo
da485dc007
Modified $readmem[hb] to use '\' or '/' according the OS
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Signed-off-by: Rodrigo Alejandro Melo <rmelo@inti.gob.ar>
2020-02-06 10:10:29 -03:00
Eddie Hung
fc33287bc1
verilog: instead of modifying localparam size, extend init constant expr
2020-02-05 17:19:42 -08:00
Rodrigo Alejandro Melo
313a425bd5
Merge branch 'master' of https://github.com/YosysHQ/yosys
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Solved a conflict into the CHANGELOG
Signed-off-by: Rodrigo Alejandro Melo <rmelo@inti.gob.ar>
2020-02-03 10:56:41 -03:00
Rodrigo Alejandro Melo
71f3afb9a2
Replaced strlen by GetSize into simplify.cc
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As recommended in CodingReadme.
Signed-off-by: Rodrigo Alejandro Melo <rmelo@inti.gob.ar>
2020-02-03 10:44:09 -03:00
Rodrigo Alejandro Melo
b4c30cfc8d
Fixed a bug in the new feature of $readmem[hb] when an empty string is provided
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Signed-off-by: Rodrigo Alejandro Melo <rodrigomelo9@gmail.com>
2020-02-01 17:03:56 -03:00
Rodrigo Alejandro Melo
d74b9604e3
Modified the new search for files of $readmem[hb] to be backward compatible
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Signed-off-by: Rodrigo Alejandro Melo <rodrigomelo9@gmail.com>
2020-01-31 22:10:51 -03:00
Rodrigo Alejandro Melo
7b3fe404ab
$readmem[hb] file inclusion is now relative to the Verilog file
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Signed-off-by: Rodrigo Alejandro Melo <rodrigomelo9@gmail.com>
2020-01-31 18:20:22 -03:00
David Shah
22c967e35e
ast: Add support for $sformatf system function
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Signed-off-by: David Shah <dave@ds0.me>
2020-01-19 21:20:17 +00:00
Jeff Wang
98c6bd7630
fix bug introduced by not taking all of PeterCrozier's changes in 16ea4ea6
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The if(str == node->str) is in fact necessary (otherwise causes generate
for in Multiplier_2D in tests/simple/multiplier.v to fail with error
message "Right hand side of 3rd expression of generate for-loop is not
constant!"). Note: in PeterCrozier's implementation, the break only
breaks out of the switch-case, not the outer for loop.
2020-01-17 02:07:42 -05:00
Jeff Wang
549deb6373
fix enum in generate blocks
2020-01-16 18:13:30 -05:00
Jeff Wang
41a0a93dcc
allow enums to be declared at toplevel scope
2020-01-16 18:13:14 -05:00
Jeff Wang
16ea4ea61a
partial rebase of PeterCrozier's enum work onto current master
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I tried to keep only the enum-related changes, and minimize the diff. (The
original commit also had a lot of work done to get typedefs working, but yosys
has diverged quite a bit since the 2018-03-09 commit, with a new typedef
implementation.) I did not include the import related changes either.
Original commit:
"Initial implementation of enum, typedef, import. Still a WIP."
881833aa73
2020-01-16 13:51:47 -05:00
Eddie Hung
1ac1697e15
Stray log_dump
2019-12-11 16:59:00 -08:00
Eddie Hung
af36943cb9
Preserve size of $genval$-s in for loops
2019-12-11 16:52:37 -08:00
David Shah
e46e8753c8
frontends/ast: code style
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Signed-off-by: David Shah <dave@ds0.me>
2019-10-03 09:55:43 +01:00
David Shah
5501d9090a
sv: Fix typedefs in blocks
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Signed-off-by: David Shah <dave@ds0.me>
2019-10-03 09:54:45 +01:00
David Shah
af25585170
sv: Add support for memories of a typedef
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Signed-off-by: David Shah <dave@ds0.me>
2019-10-03 09:54:14 +01:00
David Shah
30d2326030
sv: Add support for memory typedefs
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Signed-off-by: David Shah <dave@ds0.me>
2019-10-03 09:54:14 +01:00
David Shah
e70e4afb60
sv: Fix typedefs in packages
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Signed-off-by: David Shah <dave@ds0.me>
2019-10-03 09:54:14 +01:00
David Shah
c962951612
sv: Fix typedef parameters
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Signed-off-by: David Shah <dave@ds0.me>
2019-10-03 09:54:14 +01:00
David Shah
f6b5e47e40
sv: Switch parser to glr, prep for typedef
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Signed-off-by: David Shah <dave@ds0.me>
2019-10-03 09:54:14 +01:00
Clifford Wolf
25b08b1afd
Fix handling of range selects on loop variables, fixes #1372
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-09-16 11:25:37 +02:00
Clifford Wolf
25e5fbac90
Properly construct $live and $fair cells from "if (...) assume/assert (s_eventually ...)"
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Fixes https://github.com/YosysHQ/SymbiYosys/issues/59
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-09-02 22:56:38 +02:00
Eddie Hung
fe1b2337fd
Do not propagate mem2reg attribute through to result
2019-08-22 16:57:59 -07:00
Eddie Hung
a6776ee35e
mem2reg to preserve user attributes and src
2019-08-21 13:36:01 -07:00
Eddie Hung
6d77236f38
substr() -> compare()
2019-08-07 12:20:08 -07:00
Eddie Hung
e6d5147214
Merge remote-tracking branch 'origin/master' into eddie/cleanup
2019-08-07 11:11:50 -07:00
Eddie Hung
ee7c970367
IdString::str().substr() -> IdString::substr()
2019-08-06 19:08:33 -07:00
Clifford Wolf
f1f5b4e375
Fix handling of functions/tasks without top-level begin-end block, fixes #1231
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-08-06 18:06:14 +02:00
Clifford Wolf
d187be39d6
Merge branch 'master' of github.com:YosysHQ/yosys into clifford/fix968
2019-05-06 15:41:13 +02:00
Clifford Wolf
6bbe2fdbf3
Add splitcmplxassign test case and silence splitcmplxassign warning
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-05-01 10:01:54 +02:00
Clifford Wolf
59d74a3348
Re-enable "final loop assignment" feature
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-05-01 09:02:39 +02:00
Clifford Wolf
e35fe1344d
Disabled "final loop assignment" feature
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-04-30 20:22:50 +02:00
Clifford Wolf
9af825e31e
Add final loop variable assignment when unrolling for-loops, fixes #968
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-04-30 15:03:32 +02:00
Clifford Wolf
4ad0ea5c3c
Determine correct signedness and expression width in for loop unrolling, fixes #370
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-04-22 18:19:02 +02:00
Zachary Snow
5855024ccc
support repeat loops with constant repeat counts outside of constant functions
2019-04-09 12:28:32 -04:00
Clifford Wolf
638be461c3
Fix mem2reg handling of memories with upto data ports, fixes #888
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-21 22:21:17 +01:00
Zachary Snow
a5f4b83637
fix local name resolution in prefix constructs
2019-03-18 20:43:20 -04:00
Clifford Wolf
d25a0c8ade
Improve handling of memories used in mem index expressions on LHS of an assignment
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-12 20:12:02 +01:00
Clifford Wolf
a4ddc569b4
Remove outdated "blocking assignment to memory" warning
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-12 20:10:55 +01:00
Clifford Wolf
ab5b50ae3c
Only set MEM2REG_FL_CONST_LHS/MEM2REG_FL_VAR_LHS for non-init writes, fixes #867
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-12 20:09:47 +01:00
Clifford Wolf
cebd21aa96
Merge pull request #858 from YosysHQ/clifford/svalabels
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Add support for using SVA labels in yosys-smtbmc console output
2019-03-09 11:14:57 -08:00
Clifford Wolf
a330c68363
Fix handling of task output ports in clocked always blocks, fixes #857
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-07 22:44:37 -08:00
Clifford Wolf
22ff60850e
Add support for SVA labels in read_verilog
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-07 11:17:32 -08:00
Clifford Wolf
ae9286386d
Only run derive on blackbox modules when ports have dynamic size
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-02 12:36:46 -08:00
Clifford Wolf
ce6695e22c
Fix $global_clock handling vs autowire
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-02 10:38:13 -08:00
Clifford Wolf
5d93dcce86
Fix $readmem[hb] for mem2reg memories, fixes #785
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-02 09:58:20 -08:00
Clifford Wolf
7cfae2c52f
Use mem2reg on memories that only have constant-index write ports
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-01 13:35:09 -08:00
Clifford Wolf
1816fe06af
Fix handling of defparam for when default_nettype is none
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-24 20:09:41 +01:00
Clifford Wolf
23148ffae1
Fixes related to handling of autowires and upto-ranges, fixes #814
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-21 18:40:11 +01:00
Clifford Wolf
974927adcf
Fix handling of expression width in $past, fixes #810
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-21 17:55:33 +01:00
Clifford Wolf
fdf7c42181
Fix segfault in AST simplify
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(as proposed by Dan Gisselquist)
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-12-18 17:49:38 +01:00
Sylvain Munaut
86ce43999e
Make return value of $clog2 signed
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As per Verilog 2005 - 17.11.1.
Fixes #708
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2018-11-24 18:49:23 +01:00
Clifford Wolf
64e0582c29
Various indenting fixes in AST front-end (mostly space vs tab issues)
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-11-04 10:19:32 +01:00
ZipCPU
39f891aebc
Make and dependent upon LSB only
2018-11-03 13:39:32 -04:00
Clifford Wolf
d86ea6badd
Do not generate "reg assigned in a continuous assignment" warnings for "rand reg"
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-11-01 15:25:24 +01:00
Clifford Wolf
f24bc1ed0a
Merge pull request #659 from rubund/sv_interfaces
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Support for SystemVerilog interfaces and modports
2018-10-18 10:58:47 +02:00
Clifford Wolf
38dbb44fa0
Merge pull request #638 from udif/pr_reg_wire_error
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Fix issue #630
2018-10-17 12:13:18 +02:00
Ruben Undheim
75009ada3c
Synthesis support for SystemVerilog interfaces
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This time doing the changes mostly in AST before RTLIL generation
2018-10-12 21:11:36 +02:00
Dan Gisselquist
62424ef3de
Add read_verilog $changed support
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-10-01 19:41:35 +02:00
Clifford Wolf
9f9fe94b35
Fix handling of $past 2nd argument in read_verilog
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-09-30 18:43:35 +02:00
Udi Finkelstein
80a07652f2
Fixed issue #630 by fixing a minor typo in the previous commit
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(as well as a non critical minor code optimization)
2018-09-25 00:32:57 +03:00
Udi Finkelstein
c693f595c5
Merge branch 'master' into pr_reg_wire_error
2018-09-18 01:27:01 +03:00
Udi Finkelstein
f6fe73b31f
Fixed remaining cases where we check fo wire reg/wire incorrect assignments
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on Yosys-generated assignments.
In this case, offending code was:
module top(input in, output out);
function func;
input arg;
func = arg;
endfunction
assign out = func(in);
endmodule
2018-09-18 01:23:40 +03:00
Clifford Wolf
d8e40c75eb
Merge pull request #590 from hzeller/remaining-file-error
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Fix remaining log_file_error(); emit dependent file references in new…
2018-08-15 14:01:34 +02:00
Clifford Wolf
3d27c1cc80
Merge pull request #513 from udif/pr_reg_wire_error
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Add error checking for reg/wire/logic misuse - PR now passes 'make test' (plus a new test)
2018-08-15 13:35:41 +02:00
Henner Zeller
3101b9b8c9
Fix remaining log_file_error(); emit dependent file references in new line.
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There are some places that reference dependent file locations ("this function was
called from ..."). These are now in a separate line for ease of jumping to
it with the editor (behaves similarly to compilers that emit dependent
messages).
2018-07-20 18:52:52 -07:00
Henner Zeller
68b5d0c3b1
Convert more log_error() to log_file_error() where possible.
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Mostly statements that span over multiple lines and haven't been
caught with the previous conversion.
2018-07-20 09:37:44 -07:00
Henner Zeller
b5ea598ef6
Use log_file_warning(), log_file_error() functions.
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Wherever we can report a source-level location.
2018-07-20 08:19:06 -07:00
Udi Finkelstein
73d426bc87
Modified errors into warnings
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No longer false warnings for memories and assertions
2018-06-05 18:03:22 +03:00
Udi Finkelstein
2b9c75f8e3
This PR should be the base for discussion, do not merge it yet!
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It correctly detects reg/wire mix and incorrect use on blocking,nonblocking assignments within blocks and assign statements.
What it DOES'T do:
Detect registers connected to output ports of instances.
Where it FAILS:
memorty nonblocking assignments causes spurious (I assume??) errors on yosys-generated "_ADDR", "_DATA", "EN" signals.
You can test it with tests/simple/reg_wire_error.v (look inside for the comments to enable/disable specific lines)
2018-03-11 23:09:34 +02:00
Clifford Wolf
eb67a7532b
Add $allconst and $allseq cell types
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-02-23 13:14:47 +01:00
Clifford Wolf
a96c775a73
Add support for "yosys -E"
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-01-07 16:36:13 +01:00
Clifford Wolf
8364f509e3
Fix error handling for nested always/initial
2017-12-02 18:52:05 +01:00
Clifford Wolf
bc80426d45
Remove some dead code
2017-10-10 12:00:48 +02:00
Clifford Wolf
caa78388cd
Allow $past, $stable, $rose, $fell in $global_clock blocks
2017-10-10 11:59:32 +02:00
Clifford Wolf
dbfd8460a9
Allow $size and $bits in verilog mode, actually check test case
2017-09-29 11:56:43 +02:00
Udi Finkelstein
e951ac0dfb
$size() now works correctly for all cases!
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It seems the issues was that AST_MULTIRANGE is converted into a multirange_dimensions[] array on the AST_MEMORY node directly.
2017-09-26 20:34:24 +03:00
Udi Finkelstein
6ddc6a7af4
$size() seems to work now with or without the optional parameter.
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Multidimensional arrays still don't work. I suspect the problem is that the array is flattened into a 1D array before $size() is evaluated.
2017-09-26 19:18:25 +03:00
Udi Finkelstein
7e391ba904
enable $bits() and $size() functions only when the SystemVerilog flag is enabled for read_verilog
2017-09-26 09:19:56 +03:00
Udi Finkelstein
2dea42e903
Added $bits() for memories as well.
2017-09-26 09:11:25 +03:00
Udi Finkelstein
17f8b41605
$size() now works with memories as well!
2017-09-26 08:36:45 +03:00
Udi Finkelstein
64eb8f29ad
Add $size() function. At the moment it works only on expressions, not on memories.
2017-09-26 06:25:42 +03:00
Clifford Wolf
5f1d0b1024
Add $live and $fair cell types, add support for s_eventually keyword
2017-02-25 10:36:39 +01:00
Clifford Wolf
4fb8007171
Fix incorrect "incompatible re-declaration of wire" error in tasks/functions
2017-02-14 15:10:59 +01:00
Clifford Wolf
3928482a3c
Add $cover cell type and SVA cover() support
2017-02-04 14:14:26 +01:00
Clifford Wolf
78f65f89ff
Fix bug in AstNode::mem2reg_as_needed_pass2()
2017-01-15 13:52:50 +01:00
Clifford Wolf
2d32c6c4f6
Fixed handling of local memories in functions
2017-01-05 13:19:03 +01:00
Clifford Wolf
81a9ee2360
Added handling of local memories and error for local decls in unnamed blocks
2017-01-04 16:03:04 +01:00
Clifford Wolf
dfb461fe52
Added Verilog $rtoi and $itor support
2017-01-03 17:40:58 +01:00
Clifford Wolf
70d7a02cae
Added support for hierarchical defparams
2016-11-15 13:35:19 +01:00
Clifford Wolf
2874914bcb
Fixed anonymous genblock object names
2016-11-04 07:46:30 +01:00
Clifford Wolf
56e2bb88ae
Some fixes in handling of signed arrays
2016-11-01 23:17:43 +01:00
Clifford Wolf
bdc316db50
Added $anyseq cell type
2016-10-14 15:24:03 +02:00
Clifford Wolf
aaa99c35bd
Added $past, $stable, $rose, $fell SVA functions
2016-09-19 01:30:07 +02:00
Clifford Wolf
97583ab729
Avoid creation of bogus initial blocks for assert/assume in always @*
2016-09-06 17:34:42 +02:00
Clifford Wolf
6f41e5277d
Removed $aconst cell type
2016-08-30 19:09:56 +02:00