Don't run DCE && Profit

macros/src/main/scala/MacroCompiler.scala

@@ -13,6 +13,7 @@ import firrtl.ir._
 import firrtl.PrimOps
 import firrtl.Utils._
 import firrtl.annotations._
+import firrtl.transforms.{NoDCEAnnotation}
 import firrtl.CompilerUtils.getLoweringTransforms
 import mdf.macrolib.{PolarizedPort, PortPolarity}
 import scala.collection.mutable.{ArrayBuffer, HashMap}
@@ -46,11 +47,6 @@ object MacroCompilerAnnotation {
   /** CompileAvailable - compile what is possible and do nothing with uncompiled memories. **/
   case object CompileAvailable extends CompilerMode
 
-  /**
-   * The default mode for the macro compiler.
-   * TODO: Maybe set the default to FallbackSynflops (typical for
-   * vlsi_mem_gen-like scripts) once it's implemented?
-   */
   val Default = CompileAvailable
 
   // Options as list of (CompilerMode, command-line name, description)
@@ -764,7 +760,8 @@ object MacroCompiler extends App {
             )
           ))
         )
-        val state = CircuitState(circuit, HighForm, annotations)
+        // Append a NoDCEAnnotation to avoid dead code elimination removing the non-parent SRAMs
+        val state = CircuitState(circuit, HighForm, annotations :+ NoDCEAnnotation)
 
         // Run the compiler.
         val result = new MacroCompiler().compileAndEmit(state)