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76 Commits

Author SHA1 Message Date
Clifford Wolf b02d9c2634 Fix handling of cases that look like sva labels, fixes #862 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-03-10 16:27:18 -07:00
Clifford Wolf e7a34d342e Also add support for labels on sva module items, fixes #699 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-03-08 22:55:09 -08:00
Clifford Wolf 22ff60850e Add support for SVA labels in read_verilog 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-03-07 11:17:32 -08:00
whitequark efa278e232 Fix typographical and grammatical errors and inconsistencies. 
The initial list of hits was generated with the codespell command
below, and each hit was evaluated and fixed manually while taking
context into consideration.

    DIRS="kernel/ frontends/ backends/ passes/ techlibs/"
    DIRS="${DIRS} libs/ezsat/ libs/subcircuit"
    codespell $DIRS -S *.o -L upto,iff,thru,synopsys,uint

More hits were found by looking through comments and strings manually.
 2019-01-02 13:12:17 +00:00
Sylvain Munaut 58fb2ac818 verilog_parser: Properly handle recursion when processing attributes 
Fixes #737

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
 2018-12-14 12:48:00 +01:00
Clifford Wolf 36ea98385f Add warning for SV "restrict" without "property" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-11-04 15:57:17 +01:00
Clifford Wolf 5ab58d4930 Fix minor typo in error message 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-10-25 13:20:00 +02:00
Udi Finkelstein 536ae16c3a Rename the generic "Syntax error" message from the Verilog/SystemVerilog parser into unique, 
meaningful info on the error.
Also add 13 compilation examples that triggers each of these messages.
 2018-10-25 02:37:56 +03:00
Ruben Undheim 736105b046 Handle FIXME for modport members without type directly in front 2018-10-13 20:50:33 +02:00
Ruben Undheim 458a94059e Support for 'modports' for System Verilog interfaces 2018-10-12 21:11:48 +02:00
Ruben Undheim 75009ada3c Synthesis support for SystemVerilog interfaces 
This time doing the changes mostly in AST before RTLIL generation
 2018-10-12 21:11:36 +02:00
Clifford Wolf 8fde05dfa5 Add "read_verilog -noassert -noassume -assert-assumes" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-09-24 20:51:16 +02:00
Clifford Wolf eb452ffb28 Added support for ommited "parameter" in Verilog-2001 style parameter decl in SV mode 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-09-23 10:32:54 +02:00
Udi Finkelstein fbfc677df3 Fixed all known specify/endspecify issues, without breaking 'make test'. 
Some the of parser fixes may look strange but they were needed to avoid shift/reduce conflicts,
due to the explicit parentheses in path_delay_value, and the mintypmax values without parentheses
 2018-08-20 17:27:45 +03:00
Udi Finkelstein 95241c8f4d Yosys can now parse https://github.com/verilog-to-routing/vtr-verilog-to-routing/blob/master/vtr_flow/primitives.v , 
(specify block ignored).
Must use 'read_verilog -defer' due to a parameter not assigned a default value.
 2018-08-20 00:08:08 +03:00
Udi Finkelstein 28cfc75a90 A few minor enhancements to specify block parsing. 
Just remember specify blocks are parsed but ignored.
 2018-08-15 20:14:52 +03:00
Clifford Wolf 3d27c1cc80
Merge pull request #513 from udif/pr_reg_wire_error 
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
Udi Finkelstein 8b7580b0a1 Detect illegal port declaration, e.g input/output/inout keyword must be the first. 2018-06-06 22:27:25 +03:00
Udi Finkelstein 73d426bc87 Modified errors into warnings 
No longer false warnings for memories and assertions
 2018-06-05 18:03:22 +03:00
Clifford Wolf 2d7f3123f0 Add statement labels for immediate assertions 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-04-13 11:52:28 +02:00
Clifford Wolf 66ffc99695 Allow "property" in immediate assertions 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-04-12 14:28:28 +02:00
Clifford Wolf 5ea2c53604 Add read_verilog anyseq/anyconst/allseq/allconst attribute support 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-04-06 14:35:11 +02:00
Udi Finkelstein 6378e2cd46 First draft of Verilog parser support for specify blocks and parameters. 
The only functionality of this code at the moment is to accept correct specify syntax and ignore it.
No part of the specify block is added to the AST
 2018-03-27 14:34:00 +02:00
Udi Finkelstein 2b9c75f8e3 This PR should be the base for discussion, do not merge it yet! 
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 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-02-23 13:14:47 +01:00
Clifford Wolf 777f2881d8 Add Verilog "automatic" keyword (ignored in synthesis) 2017-11-23 08:51:38 +01:00
Clifford Wolf 5b6e52118c Accept real-valued delay values 2017-11-18 10:01:30 +01:00
Udi Finkelstein 72a08eca3d Resolved classical Bison IF/THEN/ELSE shift/reduce conflict using the textbook solution 
(Oreilly 'Flex & Bison' page 189)
 2017-09-30 06:39:07 +03:00
Clifford Wolf 2cc09161ff Fix ignoring of simulation timings so that invalid module parameters cause syntax errors 2017-09-26 01:52:59 +02:00
Clifford Wolf 8f8baccfde Fix generation of vlogtb output in yosys-smtbmc for "rand reg" and "rand const reg" 2017-06-07 12:30:24 +02:00
Clifford Wolf 129984e115 Fix handling of Verilog ~& and ~| operators 2017-06-01 12:43:21 +02:00
Clifford Wolf e91548b33e Add support for localparam in module header 2017-04-30 17:20:30 +02:00
Clifford Wolf 5b3b5ffc8c Allow $anyconst, etc. in non-formal SV mode 2017-03-01 10:47:05 +01:00
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 00dba4c197 Add support for SystemVerilog unique, unique0, and priority case 2017-02-23 16:33:19 +01:00
Clifford Wolf 34d4e72132 Added SystemVerilog support for ++ and -- 2017-02-23 11:21:33 +01:00
Clifford Wolf 848062088c Add checker support to verilog front-end 2017-02-09 13:51:44 +01:00
Clifford Wolf ef4a28e112 Add SV "rand" and "const rand" support 2017-02-08 14:38:15 +01:00
Clifford Wolf 6abf79eb28 Further improve cover() support 2017-02-04 17:02:13 +01:00
Clifford Wolf 3928482a3c Add $cover cell type and SVA cover() support 2017-02-04 14:14:26 +01:00
Clifford Wolf fea528280b Add "enum" and "typedef" lexer support 2017-01-17 17:33:52 +01:00
Clifford Wolf 70d7a02cae Added support for hierarchical defparams 2016-11-15 13:35:19 +01:00
Clifford Wolf bdc316db50 Added $anyseq cell type 2016-10-14 15:24:03 +02:00
Clifford Wolf 6f41e5277d Removed $aconst cell type 2016-08-30 19:09:56 +02:00
Clifford Wolf eae390ae17 Removed $predict again 2016-08-28 21:35:33 +02:00
Clifford Wolf 1276c87a56 Added read_verilog -norestrict -assume-asserts 2016-08-26 23:35:27 +02:00
Clifford Wolf 4be4969bae Improved verilog parser errors 2016-08-25 11:44:37 +02:00
Clifford Wolf 7f755dec75 Fixed bug in parsing real constants 2016-08-06 13:16:23 +02:00
Clifford Wolf 4056312987 Added $anyconst and $aconst 2016-07-27 15:41:22 +02:00
Clifford Wolf 5b944ef11b Fixed a verilog parser memory leak 2016-07-25 16:37:58 +02:00