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1540 Commits

Author SHA1 Message Date
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 95d28c22a2 functional backend: make Memory in the C++ simulation library read-only again 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 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 13bacc5c8f eliminate pmux in functional backend 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 674e6d201d rewrite functional backend test code in python 2024-08-21 11:03:29 +01:00
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 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
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
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
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 c6e112686c Remove unused includes 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
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
Asherah Connor 62bff3a204 cxxrtl: don't need to specify a value for "path". 
Callers of the deprecated method had a path already.
 2024-06-13 13:17:02 +01:00
Asherah Connor 3ed2865ac5 cxxrtl: capi: don't use deprecated invocation. 2024-06-13 13:17:02 +01:00
Catherine 9f94ecf4ed
Merge pull request #4417 from kivikakk/cxxrtl-unused-output 
cxxrtl: don't emit invalid code on unconnected outputs.
 2024-06-09 21:35:42 +01:00
Jean-François Nguyen 54d5e56745 cxxrtl: fix `debug_info()` deprecation message. 2024-06-07 20:12:53 +01:00
Asherah Connor e97c36d4c4 cxxrtl: don't emit syncs for empty lhs. 2024-06-07 14:24:27 +03:00
Jannis Harder 094fa8caba smtbmc: Fix two .yw handling related crashes 
These came up when using the experimental incremental interface and are
also in code that was recently refactored to support that interface.
 2024-06-06 17:35:31 +02:00
Amiot Noe c7580eb18e cxxrtl: Prevent wires with input or output ports from being aliased 2024-05-24 23:26:16 +01:00
Catherine 6e003e1af6 cxxrtl: minimize stack space consumed by `debug_info()`. 
This commit uses parameter packs to sink `debug_item()` construction
into the `debug_info()`-specific `add()` overload. This makes the stack
space use sub-linear in typical case rather than linear (which is still
the worst case). Oddly, the stack slots that get allocated now are all
for the `0` literal for `lsb_offset`. This could be fixed by allocating
numbers statically but the existing reduction in stack use of ~98% for
a representative example (Minerva SoC) should be enough.
 2024-05-08 03:37:14 +00:00
Catherine 80798daf53 cxxrtl: reduce stack space consumed by `debug_info()` further. 
Before this commit, this function would create a temporary `std::string`
per debug item (and scope). After this commit, an additional overload is
used to push that down the call stack. This reduces stack usage by
about 50% more on top of the previous commit.
 2024-05-08 02:55:17 +00:00
Catherine 9134cd1928 cxxrtl: reduce stack space consumed by `debug_info()`. 
Before this commit, the creation of (constant) attribute maps caused
`debug_info()` (which is built with `__attribute__((optnone))`) to
consume large amounts of stack space; up to tens of megabytes. This
caused problems particularly on macOS, where the default stack size
is 512 KiB.

After this commit, `std::map` objects are no longer created inline in
the `debug_info()` function, but are compiled to and then expanded from
a string literal in a subroutine call. This reduces stack space usage
by about 50%.
 2024-05-08 02:55:17 +00:00
Catherine 43ddd89ba5 cxxrtl: fix `escape_c_string` hex literal fiasco. 
In C and C++, a `\x` escape sequence consumes as many hexadecimal digits
as there are available, so it is not composable with arbitrary alnum
characters afterwards. An octal escape sequence like `\000` always has
fixed width, avoiding an issue where `\x01c` and `\x1c` produce the same
string.
 2024-05-08 02:55:17 +00:00
Catherine 7294d8b5af cxxrtl: fix close of invalid fd in spool destructor. 2024-05-08 00:46:10 +00:00
Jannis Harder a52088b6af smtbmc: Improvements for --incremental and .yw fixes 
This extends the experimental incremental JSON API to allow arbitrary
smtlib subexpressions, defining smtlib constants and to allow access of
signals by their .yw path.

It also fixes a bug during .yw writing where values would be re-emitted
in later cycles if they have no newer defined value and a potential
crash when using --track-assumes.
 2024-05-07 17:57:37 +02:00
Catherine d9a4a42389 write_verilog: don't `assign` to a `reg`. 
Fixes #2035.
 2024-04-03 13:06:45 +02:00