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14200 Commits

Author SHA1 Message Date
Emily Schmidt 6e7ae88c6a fix bugs in smtlib backend 2024-08-21 11:03:29 +01:00
Emily Schmidt 00a65754bb factor out SExpr/SExprWriter classes out of smtlib backend, and also tidy them up/document them 2024-08-21 11:03:27 +01:00
Emily Schmidt c659ef29f4 change smtlib backend to use list() function instead of SExpr{} constructor (leads to weird constructor overloading resolution issues) 2024-08-21 11:02:31 +01:00
Emily Schmidt 9f660b1e4b rewrite smtlib pass to use SExpr class 2024-08-21 11:02:31 +01:00
Roland Coeurjoly 80582ed3af Check the existance of a different set of outputs. No need for (push 1) nor (pop 1) 2024-08-21 11:02:31 +01:00
Roland Coeurjoly 566e57d24f Support $lut cells. Both C++ and SMT tests pass 2024-08-21 11:02:31 +01:00
Roland Coeurjoly 7cff8fa3a3 Fix corner case of pos cell with input and output being same width 2024-08-21 11:02:31 +01:00
Roland Coeurjoly fad76ce677 Fix memory leak 2024-08-21 11:02:31 +01:00
Roland Coeurjoly 5780357cd9 Emit valid SMT for stateful designs, fix some cells 2024-08-21 11:02:31 +01:00
Roland Coeurjoly f0f436cbe7 Fix parenthesis for arithmetic_shift_right 2024-08-21 11:02:31 +01:00
Miodrag Milanovic e296b884d5 Add Makefile helpers for coverage 2024-08-21 11:02:31 +01:00
Roland Coeurjoly 57af68af96 include algorithm, needed for std::reverse 2024-08-21 11:02:31 +01:00
Emily Schmidt 1b2986f7fb add support for $mul, $div, $divfloor, $mod, $modfloor, $pow in functional backend 2024-08-21 11:02:31 +01:00
Roland Coeurjoly 50f487e08c Added $ff test 2024-08-21 11:02:31 +01:00
Roland Coeurjoly 762f8dd822 Add readme explaining how to create test files 2024-08-21 11:02:31 +01:00
Roland Coeurjoly 73ed514623 Check that there are not other solutions other than the first given 2024-08-21 11:02:31 +01:00
Roland Coeurjoly cb5f08364c ´SMT success only if simulation is equivalent 2024-08-21 11:02:31 +01:00
Emily Schmidt 9700df50d6 add generic writer class with formatting function to FunctionalTools 2024-08-21 11:02:31 +01:00
Roland Coeurjoly 32cdf25838 Use FunctionalTools::Scope instead of replaceCharacters 2024-08-21 11:02:31 +01:00
Roland Coeurjoly ee6bd59436 Removed unnecesary nested_lets variable, use writer.print instead 2024-08-21 11:02:31 +01:00
Roland Coeurjoly e235fc704d Create std::mt19937 only once 2024-08-21 11:02:31 +01:00
Emily Schmidt 21bb1cf1bc rewrite functional c++ simulation library 2024-08-21 11:02:31 +01:00
Emily Schmidt eb2bb8c45b tidy up generic functional backend, add generic scope class, tidy up c++ functional backend 2024-08-21 11:02:31 +01:00
Roland Coeurjoly 39bf4f04f7 Create VCD file from SMT file 2024-08-21 11:02:31 +01:00
Roland Coeurjoly 4109fcedcf clang-format smtlib.cc 2024-08-21 11:02:31 +01:00
Roland Coeurjoly 94ddbc9577 Fix reduce_or 2024-08-21 11:02:31 +01:00
Roland Coeurjoly b98210d8ac Valid SMT is emitted, improved test script 2024-08-21 11:02:31 +01:00
Roland Coeurjoly 71aaa1c80d Consolidate tests scripts into one 2024-08-21 11:02:31 +01:00
Roland Coeurjoly 547c5466ec Ignore smt2 files, generated by the execution of the tests 2024-08-21 11:02:31 +01:00
Roland Coeurjoly c6e112686c Remove unused includes 2024-08-21 11:02:31 +01:00
Roland Coeurjoly 54225b5c42 Add test for SMT backend. Tests if SMT is valid and compares simulation with yosys sim 2024-08-21 11:02:31 +01:00
Roland Coeurjoly 4e370f4426 Initial functional SMT backend using functional IR 2024-08-21 11:02:31 +01:00
Emily Schmidt 6f9e21219b add new generic compute graph and rewrite c++ functional backend to use it 2024-08-21 11:02:29 +01:00
Emily Schmidt 248d5f72d4 add support for std::variant to hashlib 2024-08-21 11:01:09 +01:00
Emily Schmidt dbf2bc3b1d need unsigned comparison when checking shift widths for overflow in functional backend 2024-08-21 11:01:09 +01:00
Roland Coeurjoly 3552a8a2b2 sim.h cannot use log_assert because does not include yosys headers 2024-08-21 11:01:09 +01:00
Emily Schmidt 7b29d177ac add support for memories to c++ and smtlib functional backends 2024-08-21 11:01:09 +01:00
Roland Coeurjoly 76371d177f Change assert to log_assert 2024-08-21 11:01:09 +01:00
Roland Coeurjoly 720429b1fd Add test_cell tests for C++ functional backend 2024-08-21 11:01:09 +01:00
Emily Schmidt 7611dda2eb add initial version of functional smtlib backend 2024-08-21 11:01:09 +01:00
Emily Schmidt 63dea89fac add initial version of functional C++ backend 2024-08-21 11:01:09 +01:00
Emily Schmidt dd5ec84a26 fix bugs in drivertools 2024-08-21 11:01:09 +01:00
Jannis Harder d90268f610 fixup! drivertools: Utility code for indexing and traversing signal drivers 2024-08-21 11:01:09 +01:00
Jannis Harder d4e3daa9d0 ComputeGraph datatype for the upcoming functional backend 2024-08-21 11:01:09 +01:00
Jannis Harder f29422f745 topo_scc: Add sources_first option 2024-08-21 11:01:09 +01:00
Jannis Harder 68c3a47945 WIP temporary drivertools example 2024-08-21 11:01:08 +01:00
Jannis Harder 56572978f5 drivertools: Utility code for indexing and traversing signal drivers 
It adds `DriveBit`, `DriveChunk` and `DriveSpec` types which are similar
to `SigBit`, `SigChunk` and `SigSpec` but can also directly represent
cell ports, undriven bits and multiple drivers. For indexing an RTLIL
module and for querying signal drivers it comes with a `DriverMap` type
which is somewhat similar to a `SigMap` but is guaranteed to produce
signal drivers as returned representatives.

A `DriverMap` can also optionally preserve connections via intermediate
wires (e.g. querying the driver of a cell input port will return a
connected intermediate wire, querying the driver of that wire will
return the cell output port that's driving the wire).
 2024-08-21 11:00:21 +01:00
Jannis Harder f24e2536c6 kernel/rtlil: Add `SigBit operator[](int offset)` to `SigChunk` 
This is already supported by `SigSpec` and since both `SigChunk` and
`SigSpec` implement `extract` which is the multi-bit variant of this,
there is no good reason for `SigChunk` to not support
`SigBit operator[](int offset)`.
 2024-08-21 10:58:39 +01:00
Jannis Harder c73c8a39cf kernel/log: Add log_str helper for custom log_* functions/overloads 
When implementing custom log_... functions or custom overloads for the
core log functions like log_signal it is necessary to return `char *`
that are valid long enough.

The log_... functions implemented in log.cc use either `log_id_cache` or
`string_buf` which both are cleared on log_pop.

This commit adds a public `log_str` function which stores its argument
in the `log_id_cache` and returns the stored copy, such that custom
log functions outside of log.cc can also create strings that remain
valid until the next `log_pop`.
 2024-08-21 10:58:39 +01:00
Jannis Harder 0922142567 Add generic topological sort and SCC detection 
This adds a generic non-recursive implementation of Tarjan's linear time
SCC algorithm that produces components in topological order. It can be
instantiated to work directly on any graph representation for which the
enumerate_nodes and enumerate_successors interface can be implemented.
 2024-08-21 10:58:39 +01:00