From: simonpj@microsoft.com <unknown>
Date: Fri, 7 Sep 2007 10:10:46 +0000 (+0000)
Subject: Add clarifying comments
X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=commitdiff_plain;h=b7d7fe67db64e0f639ac4a91f9ec2690be7e6a7d

Add clarifying comments
---

diff --git a/compiler/codeGen/SMRep.lhs b/compiler/codeGen/SMRep.lhs
index ed0a440..4bc1222 100644
--- a/compiler/codeGen/SMRep.lhs
+++ b/compiler/codeGen/SMRep.lhs
@@ -119,8 +119,10 @@ entry to the garbage collector.
 \begin{code}
 data CgRep 
   = VoidArg 	-- Void
-  | PtrArg 	-- Word-sized Ptr
+  | PtrArg 	-- Word-sized heap pointer, followed
+		-- by the garbage collector
   | NonPtrArg 	-- Word-sized non-pointer
+		-- (including addresses not followed by GC)
   | LongArg	-- 64-bit non-pointer
   | FloatArg 	-- 32-bit float
   | DoubleArg 	-- 64-bit float