import Bits
import Word
+
+#if __GLASGOW_HASKELL__ >= 404
+import GlaExts ( fromInt )
+#endif
\end{code}
Generating code for info tables (arrays of data).
= returnUs (\xs -> StData PtrRep table : StLabel info_lbl : xs)
where
- info_lbl = infoTableLabelFromCI cl_info
+ info_lbl = infoTableLabelFromCI cl_info
+ needs_srt = infoTblNeedsSRT cl_info
- table | infoTblNeedsSRT cl_info = srt_label : rest_of_table
- | otherwise = rest_of_table
+ table | needs_srt = srt_label : rest_of_table
+ | otherwise = rest_of_table
rest_of_table =
[
-- ToDo: do this using .byte and .word directives.
type_info :: Word32
#ifdef WORDS_BIGENDIAN
- type_info = (fromInt flags `shiftL` 24) .|.
- (fromInt closure_type `shiftL` 16) .|.
+ type_info = (fromInt closure_type `shiftL` 16) .|.
(fromInt srt_len)
#else
- type_info = (fromInt flags) .|.
- (fromInt closure_type `shiftL` 8) .|.
+ type_info = (fromInt closure_type) .|.
(fromInt srt_len `shiftL` 16)
#endif
srt = getSRTInfo cl_info
- (srt_label,srt_len) =
- case srt of
- (lbl, NoSRT) -> (StInt 0, 0)
+ (srt_label,srt_len)
+ | needs_srt
+ = case srt of
(lbl, SRT off len) ->
(StIndex DataPtrRep (StCLbl lbl)
(StInt (toInteger off)), len)
+ | otherwise
+ = (StInt 0, 0)
layout_info :: Word32
#ifdef WORDS_BIGENDIAN
closure_type = getSMRepClosureTypeInt (closureSMRep cl_info)
- flags = 0 -- for now
genBitmapInfoTable
type_info :: Word32
#ifdef WORDS_BIGENDIAN
- type_info = (fromInt flags `shiftL` 24) .|.
- (fromInt closure_type `shiftL` 16) .|.
+ type_info = (fromInt closure_type `shiftL` 16) .|.
(fromInt srt_len)
#else
- type_info = (fromInt flags) .|.
- (fromInt closure_type `shiftL` 8) .|.
+ type_info = (fromInt closure_type) .|.
(fromInt srt_len `shiftL` 16)
#endif
(lbl, SRT off len) ->
(StIndex DataPtrRep (StCLbl lbl)
(StInt (toInteger off)), len)
-
- flags = 0 -- for now
\end{code}