X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Fcmm%2FMkZipCfgCmm.hs;h=46f0659e1ae3d865e705aca96ccdbdefb3aaf6ce;hp=4b2c0225f8ac3e0c4ec1934537e698feec830e9c;hb=f1a90f54590e5a7a32a9c3ef2950740922b1f425;hpb=8e9c95ac7ad62c5ce6d39e52ac8da6936f19da4c diff --git a/compiler/cmm/MkZipCfgCmm.hs b/compiler/cmm/MkZipCfgCmm.hs index 4b2c022..46f0659 100644 --- a/compiler/cmm/MkZipCfgCmm.hs +++ b/compiler/cmm/MkZipCfgCmm.hs @@ -35,7 +35,6 @@ import PprCmm() import FastString import ForeignCall import MkZipCfg -import Outputable import Panic import SMRep (ByteOff) import StaticFlags @@ -65,7 +64,7 @@ mkCall :: CmmExpr -> (Convention, Convention) -> CmmFormals -> CmmActuals mkCmmCall :: CmmExpr -> CmmFormals -> CmmActuals -> UpdFrameOffset -> CmmAGraph -- Native C-- calling convention -mkSafeCall :: MidCallTarget -> CmmFormals -> CmmActuals -> UpdFrameOffset -> CmmAGraph +mkSafeCall :: MidCallTarget -> CmmFormals -> CmmActuals -> UpdFrameOffset -> Bool -> CmmAGraph mkUnsafeCall :: MidCallTarget -> CmmFormals -> CmmActuals -> CmmAGraph mkFinalCall :: CmmExpr -> CCallConv -> CmmActuals -> UpdFrameOffset -> CmmAGraph -- Never returns; like exit() or barf() @@ -132,9 +131,9 @@ mkAssign l r = if opt_StubDeadValues then assign l r <*> check l else assign l r mkCbranch pred ifso ifnot = mkLast (LastCondBranch pred ifso ifnot) mkSwitch e tbl = mkLast $ LastSwitch e tbl -mkSafeCall t fs as upd = +mkSafeCall t fs as upd interruptible = withFreshLabel "safe call" $ \k -> - mkMiddle $ MidForeignCall (Safe k upd) t fs as + mkMiddle $ MidForeignCall (Safe k upd interruptible) t fs as mkUnsafeCall t fs as = mkMiddle $ MidForeignCall Unsafe t fs as -- For debugging purposes, we can stub out dead stack slots: @@ -146,15 +145,15 @@ stackStubExpr w = CmmLit (CmmInt 0 w) -- the variables in their spill slots. -- Therefore, for copying arguments and results, we provide different -- functions to pass the arguments in an overflow area and to pass them in spill slots. -copyInOflow :: Convention -> Bool -> Area -> CmmFormals -> (Int, CmmAGraph) -copyInSlot :: Convention -> Bool -> CmmFormals -> CmmAGraph +copyInOflow :: Convention -> Area -> CmmFormals -> (Int, CmmAGraph) +copyInSlot :: Convention -> CmmFormals -> CmmAGraph copyOutOflow :: Convention -> Transfer -> Area -> CmmActuals -> UpdFrameOffset -> (Int, [Middle]) -copyOutSlot :: Convention -> Transfer -> [LocalReg] -> [Middle] +copyOutSlot :: Convention -> [LocalReg] -> [Middle] -- why a list of middles here instead of an AGraph? copyInOflow = copyIn oneCopyOflowI -copyInSlot c i f = snd $ copyIn oneCopySlotI c i (panic "no area for copying to slots") f +copyInSlot c f = snd $ copyIn oneCopySlotI c (panic "no area for copying to slots") f type SlotCopier = Area -> (LocalReg, ByteOff) -> (ByteOff, CmmAGraph) -> (ByteOff, CmmAGraph) @@ -207,7 +206,7 @@ copyOutOflow conv transfer area@(CallArea a) actuals updfr_off = widthInBytes wordWidth) else ([], 0) Old -> ([], updfr_off) - args = assignArgumentsPos conv (transfer /= Ret) cmmExprType actuals + args = assignArgumentsPos conv cmmExprType actuals args' = foldl adjust setRA args where adjust rst (v, StackParam off) = (v, StackParam (off + init_offset)) : rst adjust rst x@(_, RegisterParam _) = x : rst @@ -215,19 +214,19 @@ copyOutOflow _ _ (RegSlot _) _ _ = panic "cannot copy arguments into a register -- Args passed only in registers and stack slots; no overflow space. -- No return address may apply! -copyOutSlot conv transfer actuals = foldr co [] args +copyOutSlot conv actuals = foldr co [] args where co (v, RegisterParam r) ms = MidAssign (CmmGlobal r) (toExp v) : ms co (v, StackParam off) ms = MidStore (CmmStackSlot (RegSlot v) off) (toExp v) : ms toExp r = CmmReg (CmmLocal r) - args = assignArgumentsPos conv (transfer /= Ret) localRegType actuals + args = assignArgumentsPos conv localRegType actuals -- oneCopySlotO _ (reg, _) (n, ms) = -- (n, MidStore (CmmStackSlot (RegSlot reg) w) reg : ms) -- where w = widthInBytes (typeWidth (localRegType reg)) mkEntry :: BlockId -> Convention -> CmmFormals -> (Int, CmmAGraph) -mkEntry _ conv formals = copyInOflow conv False (CallArea Old) formals +mkEntry _ conv formals = copyInOflow conv (CallArea Old) formals lastWithArgs :: Transfer -> Area -> Convention -> CmmActuals -> UpdFrameOffset -> (ByteOff -> Last) -> CmmAGraph @@ -262,11 +261,9 @@ mkCmmCall f results actuals = mkCall f (NativeDirectCall, NativeReturn) results -- I'm dropping the SRT, but that should be okay: we plan to reconstruct it later. mkCall f (callConv, retConv) results actuals updfr_off = - pprTrace "mkCall" (ppr f <+> ppr actuals <+> ppr results <+> ppr callConv <+> - ppr retConv) $ withFreshLabel "call successor" $ \k -> let area = CallArea $ Young k - (off, copyin) = copyInOflow retConv False area results + (off, copyin) = copyInOflow retConv area results copyout = lastWithArgs Call area callConv actuals updfr_off (toCall f (Just k) updfr_off off) in (copyout <*> mkLabel k <*> copyin)