Small rearrangements

[ghc-hetmet.git] / compiler / stgSyn / StgSyn.lhs

diff --git a/compiler/stgSyn/StgSyn.lhs b/compiler/stgSyn/StgSyn.lhs
index a184d5e..527848f 100644 (file)
--- a/compiler/stgSyn/StgSyn.lhs
+++ b/compiler/stgSyn/StgSyn.lhs
@@ -168,13 +168,16 @@ constructors, primitives, and literals.
 \begin{code}
   | StgLit     Literal
   
+       -- StgConApp is vital for returning unboxed tuples
+       -- which can't be let-bound first
   | StgConApp  DataCon
                [GenStgArg occ] -- Saturated
 
   | StgOpApp   StgOp           -- Primitive op or foreign call
                [GenStgArg occ] -- Saturated
-               Type            -- Result type; we need to know the result type
-                               -- so that we can assign result registers.
+               Type            -- Result type
+                               -- We need to know this so that we can 
+                               -- assign result registers
 \end{code}
 
 %************************************************************************