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authorSchuyler Eldridge2020-02-06 10:35:36 -0500
committerGitHub2020-02-06 10:35:36 -0500
commit39f8563c5e3e737610f46a82f6ceaa52120ef654 (patch)
tree8112fc8fe606962ebe55d2f0d4a3bbcf0fd81ecc /src/main
parentbf0ea92752cfb3db1797b8ffc8ff0c776552b1cf (diff)
parent7e3a4240f0ddc24d8effac515b7449df588277da (diff)
Merge pull request #1362 from freechipsproject/andr-reduction-base-case
Change zero-width base case for Andr
Diffstat (limited to 'src/main')
-rw-r--r--src/main/scala/firrtl/passes/ZeroWidth.scala1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/main/scala/firrtl/passes/ZeroWidth.scala b/src/main/scala/firrtl/passes/ZeroWidth.scala
index 83fc1b6b..e01cfffc 100644
--- a/src/main/scala/firrtl/passes/ZeroWidth.scala
+++ b/src/main/scala/firrtl/passes/ZeroWidth.scala
@@ -114,6 +114,7 @@ object ZeroWidth extends Transform {
case Seq(x) => x
case seq => DoPrim(Cat, seq, consts, tpe) map onExp
}
+ case DoPrim(Andr, Seq(x), _, _) if (bitWidth(x.tpe) == 0) => UIntLiteral(1) // nothing false
case other => other.tpe match {
case UIntType(IntWidth(ZERO)) => UIntLiteral(ZERO, IntWidth(BigInt(1)))
case SIntType(IntWidth(ZERO)) => SIntLiteral(ZERO, IntWidth(BigInt(1)))