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package firrtl
import scala.collection.Seq
import Utils._
trait Kind
case class WireKind() extends Kind
case class PoisonKind() extends Kind
case class RegKind() extends Kind
case class InstanceKind() extends Kind
case class PortKind() extends Kind
case class NodeKind() extends Kind
case class MemKind(ports:Seq[String]) extends Kind
case class ExpKind() extends Kind
trait Gender
case object MALE extends Gender
case object FEMALE extends Gender
case object BIGENDER extends Gender
case object UNKNOWNGENDER extends Gender
case class WRef(name:String,tpe:Type,kind:Kind,gender:Gender) extends Expression
case class WSubField(exp:Expression,name:String,tpe:Type,gender:Gender) extends Expression
case class WSubIndex(exp:Expression,value:Int,tpe:Type,gender:Gender) extends Expression
case class WSubAccess(exp:Expression,index:Expression,tpe:Type,gender:Gender) extends Expression
case class WVoid() extends Expression
case class WInvalid() extends Expression
case class WDefInstance(info:Info,name:String,module:String,tpe:Type) extends Stmt
class WrappedExpression (val e1:Expression) {
override def equals (we:Any) = {
we match {
case (we:WrappedExpression) => {
(e1,we.e1) match {
case (e1:UIntValue,e2:UIntValue) => if (e1.value == e2.value) true else false
// TODO is this necessary? width(e1) == width(e2)
case (e1:SIntValue,e2:SIntValue) => if (e1.value == e2.value) true else false
// TODO is this necessary? width(e1) == width(e2)
case (e1:WRef,e2:WRef) => e1.name equals e2.name
case (e1:WSubField,e2:WSubField) => (e1.name equals e2.name) && (e1.exp == e2.exp)
case (e1:WSubIndex,e2:WSubIndex) => (e1.value == e2.value) && (e1.exp == e2.exp)
case (e1:WSubAccess,e2:WSubAccess) => (e1.index == e2.index) && (e1.exp == e2.exp)
case (e1:WVoid,e2:WVoid) => true
case (e1:WInvalid,e2:WInvalid) => true
case (e1:DoPrim,e2:DoPrim) => {
var are_equal = e1.op == e2.op
(e1.args,e2.args).zipped.foreach{ (x,y) => { if (x != y) are_equal = false }}
(e1.consts,e2.consts).zipped.foreach{ (x,y) => { if (x != y) are_equal = false }}
are_equal
}
case (e1:Mux,e2:Mux) => (e1.cond == e2.cond) && (e1.tval == e2.tval) && (e1.fval == e2.fval)
case (e1:ValidIf,e2:ValidIf) => (e1.cond == e2.cond) && (e1.value == e2.value)
case (e1,e2) => false
}
}
case _ => false
}
}
override def hashCode = e1.serialize().hashCode
override def toString = e1.serialize()
}
case class VarWidth(name:String) extends Width
case class PlusWidth(arg1:Width,arg2:Width) extends Width
case class MinusWidth(arg1:Width,arg2:Width) extends Width
case class MaxWidth(args:Seq[Width]) extends Width
case class MinWidth(args:Seq[Width]) extends Width
case class ExpWidth(arg1:Width) extends Width
class WrappedType (val t:Type) {
def wt (tx:Type) = new WrappedType(tx)
override def equals (o:Any) : Boolean = {
o match {
case (t2:WrappedType) => {
(t,t2.t) match {
case (t1:UIntType,t2:UIntType) => true
case (t1:SIntType,t2:SIntType) => true
case (t1:ClockType,t2:ClockType) => true
case (t1:VectorType,t2:VectorType) => (wt(t1.tpe) == wt(t2.tpe) && t1.size == t2.size)
case (t1:BundleType,t2:BundleType) => {
var ret = true
(t1.fields,t2.fields).zipped.foreach{ (f1,f2) => {
if (f1.flip != f2.flip) ret = false
if (f1.name != f2.name) ret = false
if (wt(f1.tpe) != wt(f2.tpe)) ret = false
}}
ret
}
case (t1,t2) => false
}
}
case _ => false
}
}
}
class WrappedWidth (val w:Width) {
override def toString = {
w match {
case (w:VarWidth) => w.name
case (w:MaxWidth) => "max(" + w.args.map(_.toString).reduce(_ + _) + ")"
case (w:MinWidth) => "min(" + w.args.map(_.toString).reduce(_ + _) + ")"
case (w:PlusWidth) => "(" + w.arg1 + " + " + w.arg2 + ")"
case (w:MinusWidth) => "(" + w.arg1 + " - " + w.arg2 + ")"
case (w:ExpWidth) => "exp(" + w.arg1 + ")"
case (w:IntWidth) => w.width.toString
case (w:UnknownWidth) => "?"
}
}
def eq (w1:Width,w2:Width) : Boolean = {
(new WrappedWidth(w1)) == (new WrappedWidth(w2))
}
override def equals (o:Any) : Boolean = {
o match {
case (w2:WrappedWidth) => {
(w,w2.w) match {
case (w1:VarWidth,w2:VarWidth) => w1.name.equals(w2.name)
case (w1:MaxWidth,w2:MaxWidth) => {
var ret = true
if (w1.args.size != w2.args.size) ret = false
else {
for (a1 <- w1.args) {
var found = false
for (a2 <- w2.args) { if (eq(a1,a2)) found = true }
if (found == false) ret = false
}
}
ret
}
case (w1:MinWidth,w2:MinWidth) => {
var ret = true
if (w1.args.size != w2.args.size) ret = false
else {
for (a1 <- w1.args) {
var found = false
for (a2 <- w2.args) { if (eq(a1,a2)) found = true }
if (found == false) ret = false
}
}
ret
}
case (w1:IntWidth,w2:IntWidth) => w1.width == w2.width
case (w1:PlusWidth,w2:PlusWidth) =>
(w1.arg1 == w2.arg1 && w1.arg2 == w2.arg2) || (w1.arg1 == w2.arg2 && w1.arg2 == w2.arg1)
case (w1:MinusWidth,w2:MinusWidth) =>
(w1.arg1 == w2.arg1 && w1.arg2 == w2.arg2) || (w1.arg1 == w2.arg2 && w1.arg2 == w2.arg1)
case (w1:ExpWidth,w2:ExpWidth) => w1.arg1 == w2.arg1
case (w1:UnknownWidth,w2:UnknownWidth) => true
case (w1,w2) => false
}
}
case _ => false
}
}
}
trait Constraint
class WGeq(val loc:Width,val exp:Width) extends Constraint {
override def toString = {
val wloc = new WrappedWidth(loc)
val wexp = new WrappedWidth(exp)
wloc.toString + " >= " + wexp.toString
}
}
object WGeq {
def apply (loc:Width,exp:Width) = new WGeq(loc,exp)
}
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