1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
package firrtl.passes
import firrtl.ir._
import firrtl.{WRef, WSubAccess, WSubIndex, WSubField}
import firrtl.Mappers._
import firrtl.Utils._
import firrtl.WrappedExpression._
import firrtl.Namespace
import scala.collection.mutable
/** Replaces constant [[firrtl.WSubAccess]] with [[firrtl.WSubIndex]]
* TODO Fold in to High Firrtl Const Prop
*/
object ReplaceAccesses extends Pass {
def name = "Replace Accesses"
def run(c: Circuit): Circuit = {
def onStmt(s: Statement): Statement = s map onStmt map onExp
def onExp(e: Expression): Expression = e match {
case WSubAccess(e, UIntLiteral(value, width), t, g) => WSubIndex(e, value.toInt, t, g)
case e => e map onExp
}
val newModules = c.modules map {
case m: ExtModule => m
case Module(i, n, ps, b) => Module(i, n, ps, onStmt(b))
}
Circuit(c.info, newModules, c.main)
}
}
|
