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1485 Commits

Author SHA1 Message Date
Emily Schmidt 4eeb8d326a functional backend: rename "type" to either "kind" or "sort" to make the terminology consistent 2024-08-28 12:39:41 +01:00
Emily Schmidt b428bf4600 functional backends: identifiers in c++/smtlib may not start with digits 2024-08-27 13:10:34 +01:00
Emily Schmidt 459e6b913a add functional ir documentation 2024-08-27 11:11:02 +01:00
Emily Schmidt 761eff594f functional backend: missing includes for stl containers 2024-08-22 11:13:58 +01:00
Emily Schmidt 9b5e81b13f drivertools: fix C++20 "incomplete type" error by moving constructors below other definitions 2024-08-22 10:40:56 +01:00
Emily Schmidt f456761e88 add sandia copyright notice to the functional backend 2024-08-21 11:04:11 +01:00
Emily Schmidt 831da51255 add picorv test to functional backend 2024-08-21 11:04:11 +01:00
Emily Schmidt 50047d25b3 functional backend: add different types of input/output/state variables 2024-08-21 11:04:11 +01:00
Emily Schmidt 79a1b691ea silence some more warnings, undo mistaken addition 2024-08-21 11:04:11 +01:00
Emily Schmidt 8f77494263 silence some warnings 2024-08-21 11:04:11 +01:00
Emily Schmidt fbee31080e add optional header and hashlib implementation for optional 2024-08-21 11:04:11 +01:00
Emily Schmidt 850b3a6c29 convert class FunctionalIR to a namespace Functional, rename functionalir.h to functional.h, rename functional.h to compute_graph.h 2024-08-21 11:04:08 +01:00
Emily Schmidt 8c0f625c3a functional backend: topological sort starts with the output and next states nodes, other nodes get deleted 2024-08-21 11:03:29 +01:00
Emily Schmidt 7ac0e92d35 functional backend: rename get_input and get_current_state to input and current_state (more consistent with other methods) 2024-08-21 11:03:29 +01:00
Emily Schmidt 99effb6789 add support for initializing registers and memories to the functional backend 2024-08-21 11:03:29 +01:00
Emily Schmidt 12a31a4418 add MemContents class to mem.h 2024-08-21 11:03:29 +01:00
Emily Schmidt 6d329e142d functional backend: error out if multiply driven or undriven signals are seen, dont bother putting them in functionalir 2024-08-21 11:03:29 +01:00
Emily Schmidt 145af6f10d fix memory handling in functional backend, add more error messages and comments for memory edgecases 2024-08-21 11:03:29 +01:00
Emily Schmidt 4722f13a5d functional backend: reduce $lcu to $alu 2024-08-21 11:03:29 +01:00
Emily Schmidt 3cd5f4ed83 add support for RTLIL cells with multiple outputs to the functional backend, implement $fa,$lcu,$alu 2024-08-21 11:03:29 +01:00
Emily Schmidt 13bacc5c8f eliminate pmux in functional backend 2024-08-21 11:03:29 +01:00
Emily Schmidt c0c90c2c31 functional backend: require shift width == clog2(operand width) 2024-08-21 11:03:29 +01:00
Emily Schmidt 7f8f21b980 remove widths parameters from FunctionalIR factory methods and from functionalir.cc 2024-08-21 11:03:29 +01:00
Emily Schmidt 55c2c17853 document functionalir.h and change visitors to derive from AbstractVisitor. remove extraneous widths arguments from visitors. 2024-08-21 11:03:29 +01:00
Emily Schmidt 6922633b0b fix a few bugs in the functional backend and refactor the testing 2024-08-21 11:03:29 +01:00
Emily Schmidt 9ad859fc0a add bwmux, bweqx, bmux, demux cells 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 9f660b1e4b rewrite smtlib pass to use SExpr class 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
Emily Schmidt 1b2986f7fb add support for $mul, $div, $divfloor, $mod, $modfloor, $pow in functional backend 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
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
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
Emily Schmidt 7b29d177ac add support for memories to c++ and smtlib functional backends 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 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
Emil J 92cac63845
Merge pull request #4344 from widlarizer/emil/keep_hierarchy 
cost: add keep_hierarchy pass with min_cost argument
 2024-07-29 16:33:08 +02:00
Emil J 051d83205d
Merge pull request #4471 from georgerennie/hashlib_primes 
hashlib: Add some more primes
 2024-07-29 15:10:22 +02:00
Emil J. Tywoniak 4b29f64142 cost: add model for techmapped cell count, keep_hierarchy pass with -min_cost parameter 2024-07-29 10:26:02 +02:00
Emil J 49eaa108a5
Merge pull request #4425 from YosysHQ/emil/doc-sigmap 
sigmap: comments
 2024-07-29 10:18:44 +02:00