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* genrtlil: add width detection for AST_PREFIX nodesZachary Snow2021-07-291-0/+18
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* opt_lut: Allow more than one -dlogic per cell type.Marcelina Kościelnicka2021-07-291-0/+24
| | | | Fixes #2061.
* verilog: save and restore overwritten macro argumentsZachary Snow2021-07-282-0/+23
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* verilog: Emit $meminit_v2 cell.Marcelina Kościelnicka2021-07-281-4/+4
| | | | Fixes #2447.
* opt_expr: Propagate constants to port connections.Marcelina Kościelnicka2021-07-272-0/+15
| | | | | | | | This adds one simple piece of functionality to opt_expr: when a cell port is connected to a fully-constant signal (as determined by sigmap), the port is reconnected directly to the constant value. This is just enough optimization to fix the "non-constant $meminit input" problem without requiring a full opt_clean or a separate pass.
* Add support for parsing the SystemVerilog 'bind' constructRupert Swarbrick2021-07-1614-0/+164
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This doesn't do anything useful yet: the patch just adds support for the syntax to the lexer and parser and adds some tests to check the syntax parses properly. This generates AST nodes, but doesn't yet generate RTLIL. Since our existing hierarchical_identifier parser doesn't allow bit selects (so you can't do something like foo[1].bar[2].baz), I've also not added support for a trailing bit select (the "constant_bit_select" non-terminal in "bind_target_instance" in the spec). If we turn out to need this in future, we'll want to augment hierarchical_identifier and its other users too. Note that you can't easily use the BNF from the spec: bind_directive ::= "bind" bind_target_scope [ : bind_target_instance_list] bind_instantiation ; | "bind" bind_target_instance bind_instantiation ; even if you fix the lookahead problem, because code like this matches both branches in the BNF: bind a b b_i (.*); The problem is that 'a' could either be a module name or a degenerate hierarchical reference. This seems to be a genuine syntactic ambiguity, which the spec resolves (p739) by saying that we have to wait until resolution time (the hierarchy pass) and take whatever is defined, treating 'a' as an instance name if it names both an instance and a module. To keep the parser simple, it currently accepts this invalid syntax: bind a.b : c d e (.*); This is invalid because we're in the first branch of the BNF above, so the "a.b" term should match bind_target_scope: a module or interface identifier, not an arbitrary hierarchical identifier. This will fail in the hierarchy pass (when it's implemented in a future patch).
* sv: fix two struct access bugsZachary Snow2021-07-152-0/+92
| | | | | - preserve signedness of struct members - fix initial width detection of struct members (e.g., in case expressions)
* Add a test for interfaces on modules loaded on-demandRupert Swarbrick2021-07-145-2/+48
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* sv: fix up end label checkingZachary Snow2021-06-166-0/+80
| | | | | | | - disallow [gen]blocks with an end label but not begin label - check validity of module end label - fix memory leak of package name and end label - fix memory leak of module end label
* Add regression test for #2824.Marcelina Kościelnicka2021-06-111-0/+7
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* Merge pull request #2817 from YosysHQ/claire/fixemailsClaire Xen2021-06-097-79/+79
|\ | | | | Fixing old e-mail addresses and deadnames
| * More deadname stuffClaire Xenia Wolf2021-06-092-4/+4
| | | | | | | | Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
| * More deadname stuffClaire Xenia Wolf2021-06-091-1/+1
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| * Use HTTPS for website links, gatecat emailClaire Xenia Wolf2021-06-091-1/+1
| | | | | | | | | | | | | | | | | | | | git ls-tree -r --name-only HEAD | xargs sed -i -rf ~/fixemails.sed s/((Claire|Xen|Xenia|Clifford)\s+)+(Wolf|Xen)\s+<(claire|clifford)@(symbioticeda.com|clifford.at|yosyshq.com)>/Claire Xenia Wolf <claire@yosyshq.com>/gi; s/((Nina|Nak|N\.)\s+)+Engelhardt\s+<nak@(symbioticeda.com|yosyshq.com)>/N. Engelhardt <nak@yosyshq.com>/gi; s/((David)\s+)+(Shah|gatecat)\s+<(dave|david|gatecat)@(symbioticeda.com|yosyshq.com|ds0.me)>/gatecat <gatecat@ds0.me>/gi; s/((Miodrag)\s+)+Milanovic\s+<(miodrag|micko)@(symbioticeda.com|yosyshq.com)>/Miodrag Milanovic <micko@yosyshq.com>/gi; s,https?://www.clifford.at/yosys/|http://yosyshq.net/yosys/,https://yosyshq.net/yosys/,g;
| * Fix files with CRLF line endingsClaire Xenia Wolf2021-06-093-73/+73
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| * Fixing old e-mail addresses and deadnamesClaire Xenia Wolf2021-06-081-1/+1
| | | | | | | | | | | | | | | | s/((Claire|Xen|Xenia|Clifford)\s+)+(Wolf|Xen)\s+<(claire|clifford)@(symbioticeda.com|clifford.at|yosyshq.com)>/Claire Xenia Wolf <claire@yosyshq.com>/gi; s/((Nina|Nak|N\.)\s+)+Engelhardt\s+<nak@(symbioticeda.com|yosyshq.com)>/N. Engelhardt <nak@yosyshq.com>/gi; s/((David)\s+)+Shah\s+<(dave|david)@(symbioticeda.com|yosyshq.com|ds0.me)>/David Shah <dave@ds0.me>/gi; s/((Miodrag)\s+)+Milanovic\s+<(miodrag|micko)@(symbioticeda.com|yosyshq.com)>/Miodrag Milanovic <micko@yosyshq.com>/gi; s,https?://www.clifford.at/yosys/,http://yosyshq.net/yosys/,g;
* | verilog: check for module scope identifiers during width detectionZachary Snow2021-06-081-0/+11
| | | | | | | | | | | | | | | | The recent fix for case expression width detection causes the width of the expressions to be queried before they are simplified. Because the logic supporting module scope identifiers only existed in simplify, looking them up would fail during width detection. This moves the logic to a common helper used in both simplify() and detectSignWidthWorker().
* | mem2reg: tolerate out of bounds constant accessesZachary Snow2021-06-083-0/+52
|/ | | | This brings the mem2reg behavior in line with the nomem2reg behavior.
* sv: support tasks and functions within packagesZachary Snow2021-06-012-0/+34
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* memory_map: Improve start_offset handling.Marcelina Kościelnicka2021-05-311-0/+100
| | | | Fixes #2775.
* memory_bram: Reuse extract_rdff helper for make_outreg.Marcelina Kościelnicka2021-05-254-17/+14
| | | | | Also properly skip read ports with init value or reset when not making use of make_outreg. Proper support for matching those will land later.
* verilog: fix case expression sign and width handlingZachary Snow2021-05-252-0/+108
| | | | | | | | | - The case expression and case item expressions are extended to the maximum width among them, and are only interpreted as signed if all of them are signed - Add overall width and sign detection for AST_CASE - Add sign argument to genWidthRTLIL helper - Coverage for both const and non-const case statements
* sv: support remaining assignment operatorsZachary Snow2021-05-251-0/+23
| | | | | - Add support for: *=, /=, %=, <<=, >>=, <<<=, >>>= - Unify existing support for: +=, -=, &=, |=, ^=
* opt_mem_feedback: Respect write port priority.Marcelina Kościelnicka2021-05-251-0/+47
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* opt_mem_feedback: Rewrite feedback path finding logic.Marcelina Kościelnicka2021-05-242-0/+243
| | | | Fixes #2766.
* Add new helper class for merging FFs into cells, use for memory_dff.Marcelina Kościelnicka2021-05-231-0/+17
| | | | Fixes #1854.
* opt_mem: Remove write ports with const-0 EN.Marcelina Kościelnicka2021-05-231-0/+34
| | | | Fixes #2765.
* tests/blif: Add missing gitignoreMarcelina Kościelnicka2021-05-201-0/+1
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* intel_alm: Fix illegal carry chainsgatecat2021-05-152-4/+4
| | | | Signed-off-by: gatecat <gatecat@ds0.me>
* intel_alm: Add global buffer insertiongatecat2021-05-1513-41/+41
| | | | Signed-off-by: gatecat <gatecat@ds0.me>
* intel_alm: Add IO buffer insertiongatecat2021-05-1513-39/+39
| | | | Signed-off-by: gatecat <gatecat@ds0.me>
* sv: check validity of package end labelZachary Snow2021-05-101-0/+15
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* blif: Use library cells' start_offset and upto for wideports.Marcelina Kościelnicka2021-05-082-0/+26
| | | | Fixes #2729.
* opt_dff: Fix NOT gates wired in reverse.Marcelina Kościelnicka2021-05-041-8/+13
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* Add default assignments to SB_LUT4Claire Xenia Wolf2021-04-201-1/+1
| | | | Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
* quicklogic: ABC9 synthesisLofty2021-04-176-17/+17
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* preproc: test coverage for #2712Zachary Snow2021-03-303-0/+18
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* abc9: uniquify blackboxes like whiteboxes (#2695)Eddie Hung2021-03-291-1/+56
| | | | | | | | | * abc9_ops: uniquify blackboxes too * abc9_ops: update comment * abc9_ops: allow bypass for param-less blackboxes * Add tests
* abc9: fix SCC issues (#2694)Eddie Hung2021-03-293-12/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * xilinx: add SCC test for DSP48E1 * xilinx: Gate DSP48E1 being a whitebox behind ALLOW_WHITEBOX_DSP48E1 Have a test that checks it works through ABC9 when enabled * abc9 to break SCCs using $__ABC9_SCC_BREAKER module * Add test * abc9_ops: remove refs to (* abc9_keep *) on wires * abc9_ops: do not bypass cells in an SCC * Add myself to CODEOWNERS for abc9* * Fix compile * abc9_ops: run -prep_hier before scc * Fix tests * Remove bug reference pending fix * abc9: fix for -prep_hier -dff * xaiger: restore PI handling * abc9_ops: -prep_xaiger sigmap * abc9_ops: -mark_scc -> -break_scc * abc9: eliminate hard-coded abc9.box from tests Also tidy up * Address review
* quicklogic: Add .gitignore file for test outputs.Marcelina Kościelnicka2021-03-231-0/+4
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* verilog: check entire user type stack for type definitionXiretza2021-03-211-0/+10
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* sv: allow typenames as function return typesZachary Snow2021-03-192-0/+40
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* quicklogic: PolarPro 3 supportLofty2021-03-1810-0/+262
| | | | | | | | Co-authored-by: Grzegorz Latosiński <glatosinski@antmicro.com> Co-authored-by: Maciej Kurc <mkurc@antmicro.com> Co-authored-by: Tarachand Pagarani <tpagarani@quicklogic.com> Co-authored-by: Lalit Sharma <lsharma@quicklogic.com> Co-authored-by: kkumar23 <kkumar@quicklogic.com>
* ast: Use better parameter serialization for paramod names.Marcelina Kościelnicka2021-03-181-3/+3
| | | | | | | | | | | | Calling log_signal is problematic for several reasons: - with recent changes, empty string is serialized as { }, which violates the "no spaces in IdString" rule - the type (plain / real / signed / string) is dropped, wrongly conflating functionally different values and potentially introducing a subtle elaboration bug Instead, use a custom simple serialization scheme.
* Blackbox all whiteboxes after synthesisgatecat2021-03-171-9/+9
| | | | | | | This prevents issues like processes in whiteboxes triggering an error in the JSON backend. Signed-off-by: gatecat <gatecat@ds0.me>
* sv: carry over global typedefs from previous filesZachary Snow2021-03-172-0/+60
| | | | | | | This breaks the ability to use a global typename as a standard identifier in a subsequent input file. This is otherwise backwards compatible, including for sources which previously included conflicting typedefs in each input file.
* verilog: fix buf/not primitives with multiple outputsXiretza2021-03-171-0/+15
| | | | | | | | | | | | From IEEE1364-2005, section 7.3 buf and not gates: > These two logic gates shall have one input and one or more outputs. > The last terminal in the terminal list shall connect to the input of the > logic gate, and the other terminals shall connect to the outputs of > the logic gate. yosys does not follow this and instead interprets the first argument as the output, the second as the input and ignores the rest.
* blackbox: Include whiteboxed modulesgatecat2021-03-171-0/+14
| | | | Signed-off-by: gatecat <gatecat@ds0.me>
* verilog: support module scope identifiers in parametric modulesZachary Snow2021-03-161-0/+29
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* proc_arst: Add special-casing of clock signal in conditionals.Marcelina Kościelnicka2021-03-151-0/+31
| | | | | | | | | | | | | | | | | The already-existing special case for conditionals on clock has been remade as follows: - now triggered for the last remaining edge trigger after all others have been converted to async reset, not just when there is only one sync rule in the first place - does not require all contained assignments to be constant, as opposed to a reset conditional — merely const-folds the condition In addition, the code has been refactored a bit; as a bonus, the priority order of async resets found is now preserved in resulting sync rule ordering (though this is not yet respected by proc_dff). Fixes #2656.
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