diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/main/scala/firrtl/passes/Passes.scala | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/main/scala/firrtl/passes/Passes.scala b/src/main/scala/firrtl/passes/Passes.scala index 66437556..d5d9a3b6 100644 --- a/src/main/scala/firrtl/passes/Passes.scala +++ b/src/main/scala/firrtl/passes/Passes.scala @@ -238,6 +238,13 @@ object Legalize extends Pass { case _ => expr } } + private def legalizePad(expr: DoPrim): Expression = expr.args.head match { + case UIntLiteral(value, IntWidth(width)) if (width < expr.consts.head) => + UIntLiteral(value, IntWidth(expr.consts.head)) + case SIntLiteral(value, IntWidth(width)) if (width < expr.consts.head) => + SIntLiteral(value, IntWidth(expr.consts.head)) + case _ => expr + } private def legalizeConnect(c: Connect): Statement = { val t = c.loc.tpe val w = bitWidth(t) @@ -256,6 +263,7 @@ object Legalize extends Pass { def legalizeE(expr: Expression): Expression = expr map legalizeE match { case prim: DoPrim => prim.op match { case Shr => legalizeShiftRight(prim) + case Pad => legalizePad(prim) case Bits => legalizeBits(prim) case _ => prim } |