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MonoConnect.traceFlow now properly handles coerced directions.
Also minor improvement to getClassName especially useful in test case printf debugging.
(cherry picked from commit 3aba755bdcf996c0fbd846d13268fd6641b29e96)
Co-authored-by: Megan Wachs <megan@sifive.com>
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(cherry picked from commit 11e8cc60d6268301cff352b8a1d7c4d672b5be11)
Co-authored-by: Megan Wachs <megan@sifive.com>
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(cherry picked from commit 4da1e89f3a0b79adcb39ea5defb393ed6c00fa2f)
Co-authored-by: fzi-hielscher <47524191+fzi-hielscher@users.noreply.github.com>
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Chisel <> semantics differ somewhat from FIRRTL <= semantics,
so we only emit <= when it would be legal. Otherwise we continue
the old behavior of emitting a connection for every leaf-level
Element.
Co-authored-by: Deborah Soung <debs@sifive.com>
Co-authored-by: Jack Koenig <koenig@sifive.com>
(cherry picked from commit 3553a1583403824718923a6cc530cec3b38f5704)
Co-authored-by: Jared Barocsi <82000041+jared-barocsi@users.noreply.github.com>
Co-authored-by: Jack Koenig <koenig@sifive.com>
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Command:
sbt scalafmtAll
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Previous incomplete fixes in #2023 and #2031.
The legality of a FIRRTL connection is determined by type and flow.
Chisel does not have access to true flow information. Previous fix
attempts tried to use ActualDirection as a stand-in for flow, but it is
incorrect in many cases. This new approach checks the flows of the
lvalue and rvalues in the connect and flips the connection if either
the lvalue cannot be a sink or the rvalue cannot be a source.
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DataView is a mechanism for "viewing" Scala objects as a subtype of
`Data`. Often, this is useful for viewing one subtype of `Data`, as
another. One can think about a DataView as a cross between a
customizable cast and an untagged union.
A DataView has a Target type `T`, and a View type `V`. DataView requires
that an implementation of `DataProduct` is available for Target types.
DataProduct is a type class that provides a way to iterate on `Data`
children of objects of implementing types.
If a DataView is provided for a type T to a type V, then the function
.viewAs[V] (of type T => V) is available. The object (of type T) returned
by .viewAs is called a "View" and can be used as both an rvalue and an
lvalue. Unlike when using an .asTypeOf cast, connecting to a "View" will
connect to the associated field or fields of the underlying Target.
DataView also enables .viewAsSupertype which is available for viewing
Bundles as a parent Bundle type. It is similar to .viewAs but requires
a prototype object of the Target type which will be cloned in order to
create the returned View. .viewAsSupertype maps between the
corresponding fields of the parent and child Bundle types.
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PR #2023 fixed a composition issue for chisel3 biconnects delegating to
FIRRTL partial connect when compatibility mode Bundles are elements of
chisel3 Bundles. It missed an important case though that caused
previously working code to break.
The bug is fixed by doing the automatic flipping for compatibility mode
Bundles that have "Input" as a direction in addition to those that are
"Flipped".
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BiConnect in chisel3 delegates to FIRRTL <- semantics whenever it hits a
Bundle defined in `import Chisel._`. Because chisel3 <> is commutative
it needs to be mindful of flippedness when emitting a FIRRTL <- (which
is *not* commutative).
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Change source and other relevant files to use SPDX license
LICENSE file moved from src/ to ./
Changed license file to refer to this per recommendation
using_spdx_license_list_short_identifiers
WARNING: Tests fail with as of yet undiagnosed error
```
[error] Failed: Total 691, Failed 19, Errors 0, Passed 672, Ignored 15
[error] Failed tests:
[error] chiselTests.QueueSpec
[error] examples.VendingMachineGeneratorSpec
[error] chiselTests.HarnessSpec
[error] chiselTests.ConnectSpec
[error] chiselTests.aop.SelectSpec
[error] chiselTests.PopCountSpec
[error] chiselTests.CloneModuleSpec
[error] (Test / test) sbt.TestsFailedException: Tests unsuccessful
[error] Total time: 379 s (06:19), completed Sep 30, 2020 12:38:17 AM
sbt:chisel3>
```
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* Fixed the aspect as parent bug in Data and MonoConnect
* refactored and cleaned up finding an aspect parent
* Added aspect fix to the BiConnect class
* added unit test for manipulating submodules via aspects
* Refactored to move determination of proper parent to Builder and made logic simpler in MonoConnect, Data, and BiConnect
* Removed unused function and provided Scaladoc for retrieveParent
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* Rename coreMacros to macros
* Rename chiselFrontend to core
Also make each subproject publish with "chisel3-" as a prefix
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