Comments, layout and cmm-notes

[ghc-hetmet.git] / compiler / cmm / CmmCallConv.hs

diff --git a/compiler/cmm/CmmCallConv.hs b/compiler/cmm/CmmCallConv.hs
index e7d0acc..830c879 100644 (file)
--- a/compiler/cmm/CmmCallConv.hs
+++ b/compiler/cmm/CmmCallConv.hs
@@ -31,8 +31,8 @@ instance (Outputable a) => Outputable (ParamLocation a) where
 
 type ArgumentFormat a b = [(a, ParamLocation b)]
 
--- Stack parameters are returned as word offsets.
 assignArguments :: (a -> CmmType) -> [a] -> ArgumentFormat a WordOff
+-- Stack parameters are returned as word offsets.
 assignArguments _ _ = panic "assignArguments only used in dead codegen" -- assignments
 
 -- | JD: For the new stack story, I want arguments passed on the stack to manifest as
@@ -40,6 +40,8 @@ assignArguments _ _ = panic "assignArguments only used in dead codegen" -- assig
 -- Also, I want byte offsets, not word offsets.
 assignArgumentsPos :: (Outputable a) => Convention -> (a -> CmmType) -> [a] ->
                       ArgumentFormat a ByteOff
+-- Given a list of arguments, and a function that tells their types,
+-- return a list showing where each argument is passed
 assignArgumentsPos conv arg_ty reps = assignments
     where -- The calling conventions (CgCallConv.hs) are complicated, to say the least
       regs = case (reps, conv) of