* Added SyncReadMem-based implementation of the Queue class

* Rework of the parametrized Queue class SyncReadMem-based implementation

* Modification of the parametrized Queue class SyncReadMem-based implementation

* Limiting the visibility of the read address for SyncReadMem-based Queue

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

Co-authored-by: edwardcwang <edwardcwang@users.noreply.github.com>

Signed-off-by: Jean Bruant <jean.bruant@ovhcloud.com>

* Fix some botched formatting (replace ```mdoc scala with ```scala mdoc)
* Replace some unnecessary uses of triple backticks with single
  backticks
* Move appendix docs from wiki-deprecated/ to appendix/
  * This will require an update on the website as well
* Update Bundle literal docs

* Update reported width from div/rem to match FIRRTL results

* Add tests for width of % and / on UInt and SInt

* Add loop-based test for known UInt/SInt op result widths

Co-authored-by: Jack Koenig <koenig@sifive.com>

If a method passed to higher function does not return any value,
it is prefer to use `foreach` instead of `map`.

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

This is a nit fix. no logic is changed.

* Rename `typeName` to `enumTypeName` in ScalaDoc
* Add return type at public method
* Rename `enum_records` into `enumRecords` to retain name consistency

Co-authored-by: Jack Koenig <koenig@sifive.com>

Remove "val io" and rename MultiIOModule to Module

Co-authored-by: Megan Wachs <megan@sifive.com>

Chisel projects no longer need -Xsource:2.11 when compiling with Scala
2.12.

Autowrapping of "val io" for compatibility mode Modules is now
implemented using reflection instead of calling the virtual method.

Also move Chisel.BlackBox to new chisel3.internal.LegacyBlackBox

This PR revert #1480, but keep the test.

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

This is useful for libraries to guard operations implemented via
annotations or BlackBoxes by the current when predicate

Farewell Scala 2.11

* Add (failing) Test for Data toTarget calls

Add scaladoc and clean up test

* Builder: don't let .toTarget pass if it won't be able to deserialize properly later

* Update src/test/scala/chiselTests/ReferenceTargetSpec.scala

* Rename and simplify tests for literal toTarget

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

MiMa binary compatibility checks are now run on master, but the
mimaPreviousArtifacts are empty which makes the check a no-op. This
helps keep both the build.sbt and CI more consistent between master and
stable branches.

.mergify.yml is also updated with mergify.sc from chisel-repo-tools
using the following configuration:

conditions:
  - status-success=all tests passed
branches:
  - 3.2.x
  - 3.3.x
  - 3.4.x

- fix build.sbt
- fix build.sc

* Builder: use LazyLogging.logger.warn to print elaboration message

* add deprecation for chisel3.internal.ErrorLog.info.

* add test to check elaboration message still exist.

Co-authored-by: Kevin Laeufer <kevin.laeufer@sifive.com>

Implemented by folding Element.ref into Data.ref. Element.ref had
special handling for literals, but because Bundles can also be literals,
there were code paths that tried to get the ref of a Bundle literal
which was non-existent. Now, all literals are handled together.

Because FIRRTL does not have support for Bundle literals, Bundle literal
refs are implemented by materializing a Wire.

* Improve source locators for switch statements.

The SecurityManager is global so is not thread-safe. This is the source
of flaky tests in FIRRTL CI.

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

* Refine autonaming to have more intuitive behavior

Last name in an Expression wins, while the first Statement to name wins.
This is done via checking the _id of HasIds during autonaming and only
applying a name if the HasId was created in the scope of autonaming.
There is no change to .autoSeed or .suggestName behavior.

Behavior of chisel3-plugins from before this change is maintained.

* Update docs with naming plugin changes