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40 Commits

Author SHA1 Message Date
Anonymous Maarten 504f220619 MSVC does not understand __builtin_unreachable 2020-06-17 15:10:08 +02:00
Rupert Swarbrick 044ca9dde4 Add support for SystemVerilog-style `define to Verilog frontend 
This patch should support things like

  `define foo(a, b = 3, c)   a+b+c

  `foo(1, ,2)

which will evaluate to 1+3+2. It also spots mistakes like

  `foo(1)

(the 3rd argument doesn't have a default value, so a call site is
required to set it).

Most of the patch is a simple parser for the format in preproc.cc, but
I've also taken the opportunity to wrap up the "name -> definition"
map in a type, rather than use multiple std::map's.

Since this type needs to be visible to code that touches defines, I've
pulled it (and the frontend_verilog_preproc declaration) out into a
new file at frontends/verilog/preproc.h and included that where
necessary.

Finally, the patch adds a few tests in tests/various to check that we
are parsing everything correctly.
 2020-03-27 16:08:26 +00:00
Rodrigo Alejandro Melo e9dc2759c4 Fixed some missing "verilog_" in documentation 2019-12-13 10:17:05 -03:00
Clifford Wolf 65f197e28f Add check for valid macro names in macro definitions 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-11-07 13:30:03 +01:00
Jim Paris 4a229e5b95 Support SystemVerilog `` extension for macros 2018-05-17 00:09:56 -04:00
Jim Paris 872d8d49e9 Skip spaces around macro arguments 2018-05-17 00:06:49 -04:00
Clifford Wolf a96c775a73 Add support for "yosys -E" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-01-07 16:36:13 +01:00
William D. Jones abc5b4b8ce Accommodate Windows-style paths during include-file processing. 2017-11-14 16:16:24 -05:00
Clifford Wolf 2c04d883b1 Minor coding style fix 2017-09-26 13:50:14 +02:00
combinatorylogic 64ca0be971 Adding support for string macros and macros with arguments after include 2017-09-21 18:25:02 +01:00
Clifford Wolf f0db8ffdbc Add support for `resetall compiler directive 2017-04-26 16:09:41 +02:00
Clifford Wolf 088f9c9cab Fix verilog pre-processor for multi-level relative includes 2017-03-14 17:30:20 +01:00
Clifford Wolf ecdc22b06c Added support for macros as include file names 2016-11-28 14:50:17 +01:00
Clifford Wolf a926a6afc2 Remember global declarations and defines accross read_verilog calls 2016-11-15 12:42:43 +01:00
Clifford Wolf f13e387321 SystemVerilog also has assume(), added implicit -D FORMAL 2015-10-13 14:21:20 +02:00
Clifford Wolf 6c84341f22 Fixed trailing whitespaces 2015-07-02 11:14:30 +02:00
Clifford Wolf ef151b0b30 Fixed handling of "//" in filenames in verilog pre-processor 2015-02-14 08:41:03 +01:00
Clifford Wolf 1bd67d792e Define YOSYS and SYNTHESIS in preproc 2015-01-02 17:11:54 +01:00
Clifford Wolf c5eb5e56b8 Re-introduced Yosys::readsome() helper function 
(f.read() + f.gcount() made problems with lines > 16kB)
 2014-10-23 10:58:36 +02:00
Clifford Wolf c3e9922b5d Replaced readsome() with read() and gcount() 2014-10-15 01:12:53 +02:00
Clifford Wolf 8263f6a74a Fixed win32 troubles with f.readsome() 2014-10-11 11:36:22 +02:00
Clifford Wolf bbd808072b Added format __attribute__ to stringf() 2014-10-10 17:22:08 +02:00
Clifford Wolf 19cff41eb4 Changed frontend-api from FILE to std::istream 2014-08-23 15:03:55 +02:00
Clifford Wolf 6d56172c0d Fixed line numbers when using here-doc macros 2014-08-14 22:26:30 +02:00
Clifford Wolf f53984795d Added support for non-standard """ macro bodies 2014-08-13 13:03:38 +02:00
Clifford Wolf 1cb25c05b3 Moved some stuff to kernel/yosys.{h,cc}, using Yosys:: namespace 2014-07-31 13:19:47 +02:00
Clifford Wolf 7daad40ca4 Fixed counting verilog line numbers for "// synopsys translate_off" sections 2014-07-30 20:18:48 +02:00
Clifford Wolf e605af8a49 Fixed Verilog pre-processor for files with no trailing newline 2014-07-29 20:14:25 +02:00
Clifford Wolf 7bd2d1064f Using log_assert() instead of assert() 2014-07-28 11:27:48 +02:00
Clifford Wolf 02e6f2c5be Added Verilog support for "`default_nettype none" 2014-02-17 14:28:52 +01:00
Clifford Wolf 13359d65ba Fixed parsing of verilog macros at end of line 2014-01-18 19:22:20 +01:00
Clifford Wolf 1dcbba1abf Fixed parsing of non-arg macro calls followed by "(" 2013-12-27 16:25:27 +01:00
Clifford Wolf 72026a934e Fixed parsing of macros with no arguments and expansion text starting with "(" 2013-12-27 15:05:52 +01:00
Clifford Wolf fbd06a1afc Added elsif preproc support 2013-12-18 13:41:36 +01:00
Clifford Wolf 921064c200 Added support for macro arguments 2013-12-18 13:21:02 +01:00
Clifford Wolf a362fd81ae Fixed O(n^2) performance bug in verilog preprocessor 2013-11-22 14:08:43 +01:00
Clifford Wolf e4429c480e Enable {* .. *} feature per default (removes dependency to REJECT feature in flex) 2013-11-22 12:46:02 +01:00
Johann Glaser a99c224157 Added support for include directories with the new '-I' argument of the 
'read_verilog' command
 2013-08-20 15:48:16 +02:00
Johann Glaser 10a195c0a1 added option '-Dname[=definition]' to command 'read_verilog' 2013-05-19 17:07:52 +02:00
Clifford Wolf 7764d0ba1d initial import 2013-01-05 11:13:26 +01:00