X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2FcodeGen%2FCgHeapery.lhs;h=9cb1bb4370f85e381b0594dffc32f92d11c1c2b8;hb=e5d9aaa2b7b717c862651f8eea5e2dc66f0a8028;hp=dfa49ebb47f0723328653c308a5fdc66be67faf5;hpb=81b2276ff9434d97aff683218c34c86479a8d868;p=ghc-hetmet.git

diff --git a/compiler/codeGen/CgHeapery.lhs b/compiler/codeGen/CgHeapery.lhs
index dfa49eb..9cb1bb4 100644
--- a/compiler/codeGen/CgHeapery.lhs
+++ b/compiler/codeGen/CgHeapery.lhs
@@ -5,6 +5,13 @@
 \section[CgHeapery]{Heap management functions}
 
 \begin{code}
+{-# OPTIONS -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+--     http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
+-- for details
+
 module CgHeapery (
 	initHeapUsage, getVirtHp, setVirtHp, setRealHp, 
 	getHpRelOffset,	hpRel,
@@ -224,7 +231,7 @@ mkStaticClosure :: CLabel -> CostCentreStack -> [CmmLit]
 mkStaticClosure info_lbl ccs payload padding_wds static_link_field saved_info_field
   =  [CmmLabel info_lbl]
   ++ variable_header_words
-  ++ payload
+  ++ concatMap padLitToWord payload
   ++ padding_wds
   ++ static_link_field
   ++ saved_info_field
@@ -234,6 +241,17 @@ mkStaticClosure info_lbl ccs payload padding_wds static_link_field saved_info_fi
 	++ staticParHdr
 	++ staticProfHdr ccs
 	++ staticTickyHdr
+
+padLitToWord :: CmmLit -> [CmmLit]
+padLitToWord lit = lit : padding pad_length
+  where rep = cmmLitRep lit
+        pad_length = wORD_SIZE - machRepByteWidth rep :: Int
+
+        padding n | n <= 0 = []
+                  | n `rem` 2 /= 0 = CmmInt 0 I8  : padding (n-1)
+                  | n `rem` 4 /= 0 = CmmInt 0 I16 : padding (n-2)
+                  | n `rem` 8 /= 0 = CmmInt 0 I32 : padding (n-4)
+                  | otherwise      = CmmInt 0 I64 : padding (n-8)
 \end{code}
 
 %************************************************************************
@@ -458,7 +476,7 @@ do_checks' stk_expr hp_expr stk_nonzero hp_nonzero reg_save_code rts_lbl
 		  [CmmMachOp mo_wordSub [CmmReg spReg, stk_expr],
 		   CmmReg (CmmGlobal SpLim)]
 
-	-- Hp overflow if (Hpp > HpLim)
+	-- Hp overflow if (Hp > HpLim)
 	-- (Hp has been incremented by now)
 	-- HpLim points to the LAST WORD of valid allocation space.
     hp_oflo = CmmMachOp mo_wordUGt