compiler: Fixup efunc abstraction w ComponentAccess

Author: FabioLuporini

devito/ir/iet/nodes.py

@@ -102,10 +102,16 @@ def ccode(self):
 
     @property
     def view(self):
-        """A representation of the IET rooted in ``self``."""
+        """A high-level representation of the IET rooted in `self`."""
         from devito.ir.iet.visitors import printAST
         return printAST(self)
 
+    @property
+    def view_cir(self):
+        from devito.ir.iet.visitors import CGen
+        from devito.passes.iet.languages.CIR import CIRPrinter
+        return str(CGen(printer=CIRPrinter).visit(self))
+
     @property
     def children(self):
         """Return the traversable children."""
@@ -148,7 +154,7 @@ def writes(self):
         return ()
 
     def _signature_items(self):
-        return (str(self),)
+        return (self.view_cir,)
 
 
 class ExprStmt:

devito/passes/iet/languages/CIR.py

@@ -0,0 +1,11 @@
+from .C import CPrinter
+
+
+class CIRPrinter(CPrinter):
+
+    """
+    A smarter printer for IETs undergoing lowering.
+    """
+
+    def _print_ComponentAccess(self, expr):
+        return f"{self._print(expr.base)}.<{expr.sindex},{expr.function.ncomp}>"