Fix widths for literal values in Bundle literals #4082
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Previously, the user-specified (or unspecified minimum width) of the literal would be used in some operations like concatenation.
mwachs5
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May 23, 2024
seldridge
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May 23, 2024
| @@ -122,7 +122,6 @@ private[chisel3] object ir { | |||
| } | |||
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| /** Provides a mechanism that LitArgs can have their width adjusted | |||
| * to match other members of a VecLiteral | |||
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Not stray actually, I am calling the function from Bundle literals now lol.
|
Super annoyingly, the check for literals being too wide causes things to fail. This is basically a case of implicit truncation. Instead of erroring on it, I'm going to just truncate in this PR (since this will backport to 3.6.x). I will then follow with a PR that turns it into a warning for master and 6.x |
This is to fix a bug in concatenation without breaking things relying on implicit truncation. This will be a warning in newer versions of Chisel.
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* Fix widths for literal values in Bundle literals Previously, the user-specified (or unspecified minimum width) of the literal would be used in some operations like concatenation. * Implicitly truncate too-wide literals in Bundle literals This is to fix a bug in concatenation without breaking things relying on implicit truncation. This will be a warning in newer versions of Chisel. (cherry picked from commit 3939e57) # Conflicts: # core/src/main/scala/chisel3/internal/firrtl/IR.scala # src/test/scala/chiselTests/BundleLiteralSpec.scala # src/test/scala/chiselTests/ConnectableSpec.scala # src/test/scala/chiselTests/VecLiteralSpec.scala
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* Fix widths for literal values in Bundle literals Previously, the user-specified (or unspecified minimum width) of the literal would be used in some operations like concatenation. * Implicitly truncate too-wide literals in Bundle literals This is to fix a bug in concatenation without breaking things relying on implicit truncation. This will be a warning in newer versions of Chisel. (cherry picked from commit 3939e57) # Conflicts: # core/src/main/scala/chisel3/internal/firrtl/IR.scala # src/test/scala/chiselTests/ConnectableSpec.scala # src/test/scala/chiselTests/VecLiteralSpec.scala
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* Fix widths for literal values in Bundle literals Previously, the user-specified (or unspecified minimum width) of the literal would be used in some operations like concatenation. * Implicitly truncate too-wide literals in Bundle literals This is to fix a bug in concatenation without breaking things relying on implicit truncation. This will be a warning in newer versions of Chisel. (cherry picked from commit 3939e57)
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* Fix widths for literal values in Bundle literals Previously, the user-specified (or unspecified minimum width) of the literal would be used in some operations like concatenation. * Implicitly truncate too-wide literals in Bundle literals This is to fix a bug in concatenation without breaking things relying on implicit truncation. This will be a warning in newer versions of Chisel. (cherry picked from commit 3939e57) # Conflicts: # core/src/main/scala/chisel3/internal/firrtl/IR.scala # src/test/scala/chiselTests/ConnectableSpec.scala # src/test/scala/chiselTests/VecLiteralSpec.scala
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* Fix widths for literal values in Bundle literals Previously, the user-specified (or unspecified minimum width) of the literal would be used in some operations like concatenation. * Implicitly truncate too-wide literals in Bundle literals This is to fix a bug in concatenation without breaking things relying on implicit truncation. This will be a warning in newer versions of Chisel. (cherry picked from commit 3939e57)
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) * Fix widths for literal values in Bundle literals (#4082) * Fix widths for literal values in Bundle literals Previously, the user-specified (or unspecified minimum width) of the literal would be used in some operations like concatenation. * Implicitly truncate too-wide literals in Bundle literals This is to fix a bug in concatenation without breaking things relying on implicit truncation. This will be a warning in newer versions of Chisel. (cherry picked from commit 3939e57) * Waive false binary compatibility failure Also move waivers from files to build.sbt. --------- Co-authored-by: Jack Koenig <koenig@sifive.com>
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) * Fix widths for literal values in Bundle literals (#4082) * Fix widths for literal values in Bundle literals Previously, the user-specified (or unspecified minimum width) of the literal would be used in some operations like concatenation. * Implicitly truncate too-wide literals in Bundle literals This is to fix a bug in concatenation without breaking things relying on implicit truncation. This will be a warning in newer versions of Chisel. (cherry picked from commit 3939e57) # Conflicts: # core/src/main/scala/chisel3/internal/firrtl/IR.scala # src/test/scala/chiselTests/BundleLiteralSpec.scala # src/test/scala/chiselTests/ConnectableSpec.scala # src/test/scala/chiselTests/VecLiteralSpec.scala * Resolve backport conflicts and waive false MiMa failure. --------- Co-authored-by: Jack Koenig <koenig@sifive.com>
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* Fix widths for literal values in Bundle literals Previously, the user-specified (or unspecified minimum width) of the literal would be used in some operations like concatenation. * Implicitly truncate too-wide literals in Bundle literals This is to fix a bug in concatenation without breaking things relying on implicit truncation. This will be a warning in newer versions of Chisel. (cherry picked from commit 3939e57) # Conflicts: # core/src/main/scala/chisel3/internal/firrtl/IR.scala # src/test/scala/chiselTests/ConnectableSpec.scala # src/test/scala/chiselTests/VecLiteralSpec.scala
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) * Fix widths for literal values in Bundle literals (#4082) * Fix widths for literal values in Bundle literals Previously, the user-specified (or unspecified minimum width) of the literal would be used in some operations like concatenation. * Implicitly truncate too-wide literals in Bundle literals This is to fix a bug in concatenation without breaking things relying on implicit truncation. This will be a warning in newer versions of Chisel. (cherry picked from commit 3939e57) # Conflicts: # core/src/main/scala/chisel3/internal/firrtl/IR.scala # src/test/scala/chiselTests/ConnectableSpec.scala # src/test/scala/chiselTests/VecLiteralSpec.scala * Waive false binary compatibility failure Also move waivers from files to build.sbt. --------- Co-authored-by: Jack Koenig <koenig@sifive.com>
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Contributor Checklist
docs/src?Type of Improvement
Desired Merge Strategy
Release Notes
Previously, the user-specified (or unspecified minimum width) of the literal would be used in some operations like concatenation. For literal values that are too-wide, they will now truncate to the correct width. This will become a warning (then later an error) in newer major versions of Chisel.
Reviewer Checklist (only modified by reviewer)
3.6.x,5.x, or6.xdepending on impact, API modification or big change:7.0)?Enable auto-merge (squash), clean up the commit message, and label withPlease Merge.Create a merge commit.