diff options
Diffstat (limited to 'src/main')
| -rw-r--r-- | src/main/scala/firrtl/passes/ZeroWidth.scala | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/main/scala/firrtl/passes/ZeroWidth.scala b/src/main/scala/firrtl/passes/ZeroWidth.scala index 60439ec1..e918ff63 100644 --- a/src/main/scala/firrtl/passes/ZeroWidth.scala +++ b/src/main/scala/firrtl/passes/ZeroWidth.scala @@ -135,8 +135,9 @@ object ZeroWidth extends Transform with DependencyAPIMigration { } } nonZeros match { - case Nil => UIntLiteral(ZERO, IntWidth(BigInt(1))) - case Seq(x) => x + case Nil => UIntLiteral(ZERO, IntWidth(BigInt(1))) + // We may have an SInt, Cat has type UInt so cast + case Seq(x) => castRhs(tpe, x) case seq => DoPrim(Cat, seq, consts, tpe).map(onExp) } case DoPrim(Andr, Seq(x), _, _) if (bitWidth(x.tpe) == 0) => UIntLiteral(1) // nothing false |