-- these shouldn't appear?
pprTop (CmmData _ _) = panic "PprC.pprTop: can't handle this data"
-
-- --------------------------------------------------------------------------
-- BasicBlocks are self-contained entities: they always end in a jump.
--
pprStatics :: [CmmStatic] -> [SDoc]
pprStatics [] = []
pprStatics (CmmStaticLit (CmmFloat f F32) : rest)
+ -- floats are padded to a word, see #1852
+ | wORD_SIZE == 8, CmmStaticLit (CmmInt 0 I32) : rest' <- rest
+ = pprLit1 (floatToWord f) : pprStatics rest'
+ | wORD_SIZE == 4
= pprLit1 (floatToWord f) : pprStatics rest
+ | otherwise
+ = pprPanic "pprStatics: float" (vcat (map (\(CmmStaticLit l) -> ppr (cmmLitRep l)) rest))
pprStatics (CmmStaticLit (CmmFloat f F64) : rest)
= map pprLit1 (doubleToWords f) ++ pprStatics rest
pprStatics (CmmStaticLit (CmmInt i I64) : rest)
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
++ 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}
%************************************************************************