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Code Activity
15964 commits 122 branches 59 tags 43 MiB
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490 commits

Author SHA1 Message Date
clairexen
4aa0dc4dc7
Merge pull request #2338 from zachjs/const-branch-finish 
Propagate const_fold through generate blocks and branches
 2020-08-18 17:38:07 +02:00
clairexen
a9681f4e06
Merge pull request #2317 from zachjs/expand-genblock 
Fix generate scoping issues
 2020-08-18 17:37:11 +02:00
Claire Wolf
7f767bf2b7 Merge branch 'const-func-block-var' of https://github.com/zachjs/yosys into zachjs-const-func-block-var 
Signed-off-by: Claire Wolf <claire@symbioticeda.com>
 2020-08-18 17:29:49 +02:00
clairexen
5ee9349647
Merge pull request #2281 from zachjs/const-real 
Allow reals as constant function parameters
 2020-08-18 17:22:20 +02:00
Zachary Snow
2ee0b8ebea Propagate const_fold through generate blocks and branches 2020-08-09 17:21:08 -04:00
Zachary Snow
96ec9acf84 Allow %0s $display format specifier 2020-08-09 17:19:49 -04:00
Lukasz Dalek
ba08c25133 Fix subarray access condition 
Signed-off-by: Lukasz Dalek <ldalek@antmicro.com>
 2020-08-03 16:16:04 +02:00
Zachary Snow
c3e95eb1ab Fix generate scoping issues 
- expand_genblock defers prefixing of items within named sub-blocks
- Allow partially-qualified references to local scopes
- Handle shadowing within generate blocks
- Resolve generate scope references within tasks and functions
- Apply generate scoping to genvars
- Resolves #2214, resolves #1456
 2020-07-31 20:32:47 -06:00
clairexen
45e96d5d87
Merge pull request #2301 from zachjs/for-loop-errors 
Clearer for loop error messages
 2020-07-28 14:07:26 +02:00
Zachary Snow
58da181af9 Clearer for loop error messages 2020-07-25 10:37:16 -06:00
Zachary Snow
f69daf4830 Allow blocks with declarations within constant functions 2020-07-25 10:16:12 -06:00
Zachary Snow
59c4ad8ed3 Avoid generating wires for function args which are constant 2020-07-24 21:18:24 -06:00
Zachary Snow
f285f7b769 Allow reals as constant function parameters 2020-07-19 20:27:09 -06:00
Claire Wolf
f9ed09423e Add AST_EDGE support to AstNode::detect_latch(), fixes #2241 
Signed-off-by: Claire Wolf <claire@symbioticeda.com>
 2020-07-10 18:41:13 +02:00
clairexen
8ce4f8790e
Merge pull request #2179 from splhack/static-cast 
Support SystemVerilog Static Cast
 2020-07-01 16:40:20 +02:00
Zachary Snow
27cec16cda Allow constant function calls in for loops and generate if and case 2020-06-29 16:06:17 -06:00
Kazuki Sakamoto
429d37ff41 static cast: simplify 2020-06-19 19:09:43 -07:00
Kazuki Sakamoto
185bbbe681 static cast: support changing size and signedness 
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 
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 
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 
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. 
Fixes #2058.
 2020-05-19 01:42:40 +02:00
Claire Wolf
ee0beb481d
Merge pull request #2027 from YosysHQ/eddie/verilog_neg_upto 
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 
Avoid switch fall-through warnings
 2020-05-08 05:30:32 +00:00
Claire Wolf
0610424940
Merge pull request #2005 from YosysHQ/claire/fix1990 
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 
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 
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. 
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 
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 
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 
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 
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 
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 
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 
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) 
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 
ast/simplify: improve enum handling
 2020-04-15 14:16:50 +00:00
whitequark
2106f78bb1 ast/simplify: improve enum handling. 
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 
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