import Cmm
import CmmUtils
-import PprCmm
import CLabel
-import MachOp
import Bitmap
import ClosureInfo
import SMRep
import Constants
+import Outputable
import StaticFlags
-import DynFlags
import Unique
import UniqSupply
import Panic
mkInfoTable :: Unique -> CmmTop -> [RawCmmTop]
mkInfoTable uniq (CmmData sec dat) = [CmmData sec dat]
-mkInfoTable uniq (CmmProc (CmmInfo _ _ info) entry_label arguments (ListGraph blocks)) =
+mkInfoTable uniq (CmmProc (CmmInfo _ _ info) entry_label arguments blocks) =
case info of
- -- | Code without an info table. Easy.
- CmmNonInfoTable -> [CmmProc [] entry_label arguments (ListGraph blocks)]
+ -- Code without an info table. Easy.
+ CmmNonInfoTable -> [CmmProc [] entry_label arguments blocks]
CmmInfoTable (ProfilingInfo ty_prof cl_prof) type_tag type_info ->
let info_label = entryLblToInfoLbl entry_label
- ty_prof' = makeRelativeRefTo info_label ty_prof
- cl_prof' = makeRelativeRefTo info_label cl_prof
+ ty_prof' = makeRelativeRefTo info_label ty_prof
+ cl_prof' = makeRelativeRefTo info_label cl_prof
in case type_info of
- -- | A function entry point.
- FunInfo (ptrs, nptrs) srt fun_type fun_arity pap_bitmap slow_entry ->
+ -- A function entry point.
+ FunInfo (ptrs, nptrs) srt fun_arity pap_bitmap slow_entry ->
mkInfoTableAndCode info_label std_info fun_extra_bits entry_label
arguments blocks
where
+ fun_type = argDescrType pap_bitmap
fun_extra_bits =
[packHalfWordsCLit fun_type fun_arity] ++
case pap_bitmap of
(srt_label, srt_bitmap) = mkSRTLit info_label srt
layout = packHalfWordsCLit ptrs nptrs
- -- | A constructor.
+ -- A constructor.
ConstrInfo (ptrs, nptrs) con_tag descr ->
mkInfoTableAndCode info_label std_info [con_name] entry_label
arguments blocks
std_info = mkStdInfoTable ty_prof' cl_prof' type_tag con_tag layout
con_name = makeRelativeRefTo info_label descr
layout = packHalfWordsCLit ptrs nptrs
-
- -- | A thunk.
+ -- A thunk.
ThunkInfo (ptrs, nptrs) srt ->
mkInfoTableAndCode info_label std_info srt_label entry_label
arguments blocks
(srt_label, srt_bitmap) = mkSRTLit info_label srt
layout = packHalfWordsCLit ptrs nptrs
- -- | A selector thunk.
+ -- A selector thunk.
ThunkSelectorInfo offset srt ->
mkInfoTableAndCode info_label std_info [{- no SRT -}] entry_label
arguments blocks
-> [CmmLit]
-> CLabel
-> CmmFormals
- -> [CmmBasicBlock]
+ -> ListGraph CmmStmt
-> [RawCmmTop]
mkInfoTableAndCode info_lbl std_info extra_bits entry_lbl args blocks
| tablesNextToCode -- Reverse the extra_bits; and emit the top-level proc
= [CmmProc (map CmmStaticLit (reverse extra_bits ++ std_info))
- entry_lbl args (ListGraph blocks)]
+ entry_lbl args blocks]
- | null blocks -- No actual code; only the info table is significant
+ | ListGraph [] <- blocks -- No code; only the info table is significant
= -- Use a zero place-holder in place of the
-- entry-label in the info table
[mkRODataLits info_lbl (zeroCLit : std_info ++ extra_bits)]
| otherwise -- Separately emit info table (with the function entry
= -- point as first entry) and the entry code
- [CmmProc [] entry_lbl args (ListGraph blocks),
+ [CmmProc [] entry_lbl args blocks,
mkDataLits info_lbl (CmmLabel entry_lbl : std_info ++ extra_bits)]
mkSRTLit :: CLabel
-- TODO: combine with CgCallConv.mkLiveness (see comment there)
mkLiveness :: Unique
-> [Maybe LocalReg]
- -> (CmmLit, -- ^ The bitmap (literal value or label)
- [RawCmmTop], -- ^ Large bitmap CmmData if needed
- ClosureTypeTag) -- ^ rET_SMALL or rET_BIG
+ -> (CmmLit, [RawCmmTop], ClosureTypeTag)
+ -- ^ Returns:
+ -- 1. The bitmap (literal value or label)
+ -- 2. Large bitmap CmmData if needed
+ -- 3. rET_SMALL or rET_BIG
mkLiveness uniq live =
if length bits > mAX_SMALL_BITMAP_SIZE
-- does not fit in one word
then (CmmLabel big_liveness, [data_lits], rET_BIG)
-- fits in one word
- else (mkWordCLit small_liveness, [], rET_SMALL)
+ else (mkWordCLit small_liveness, [], rET_SMALL)
where
mkBits [] = []
mkBits (reg:regs) = take sizeW bits ++ mkBits regs where
sizeW = case reg of
Nothing -> 1
- Just r -> (machRepByteWidth (localRegRep r) + wORD_SIZE - 1)
+ Just r -> (widthInBytes (typeWidth (localRegType r)) + wORD_SIZE - 1)
`quot` wORD_SIZE
-- number of words, rounded up
bits = repeat $ is_non_ptr reg -- True <=> Non Ptr
- is_non_ptr Nothing = True
- is_non_ptr (Just reg) =
- case localRegGCFollow reg of
- KindNonPtr -> True
- KindPtr -> False
+ is_non_ptr Nothing = True
+ is_non_ptr (Just reg) = not $ isGcPtrType (localRegType reg)
bits :: [Bool]
bits = mkBits live
| otherwise = []
type_lit = packHalfWordsCLit cl_type srt_len
+