diff options
Diffstat (limited to 'compiler/GHC/Cmm/DebugBlock.hs')
| -rw-r--r-- | compiler/GHC/Cmm/DebugBlock.hs | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/compiler/GHC/Cmm/DebugBlock.hs b/compiler/GHC/Cmm/DebugBlock.hs index 3a7ceb7746..bfcb16bff9 100644 --- a/compiler/GHC/Cmm/DebugBlock.hs +++ b/compiler/GHC/Cmm/DebugBlock.hs @@ -29,7 +29,8 @@ module GHC.Cmm.DebugBlock ( -- * Unwinding information UnwindTable, UnwindPoint(..), - UnwindExpr(..), toUnwindExpr + UnwindExpr(..), toUnwindExpr, + pprUnwindTable ) where import GHC.Prelude @@ -38,6 +39,7 @@ import GHC.Platform import GHC.Cmm.BlockId import GHC.Cmm.CLabel import GHC.Cmm +import GHC.Cmm.Reg ( pprGlobalReg ) import GHC.Cmm.Utils import GHC.Data.FastString ( nilFS, mkFastString ) import GHC.Unit.Module @@ -522,10 +524,18 @@ data UnwindExpr = UwConst !Int -- ^ literal value instance OutputableP Platform UnwindExpr where pdoc = pprUnwindExpr 0 -pprUnwindExpr :: Rational -> Platform -> UnwindExpr -> SDoc +pprUnwindTable :: IsLine doc => Platform -> UnwindTable -> doc +pprUnwindTable platform u = brackets (fsep (punctuate comma (map print_entry (Map.toList u)))) + where print_entry (reg, Nothing) = + parens (sep [pprGlobalReg reg, text "Nothing"]) + print_entry (reg, Just x) = + parens (sep [pprGlobalReg reg, text "Just" <+> pprUnwindExpr 0 platform x]) + -- Follow instance Outputable (Map.Map GlobalReg (Maybe UnwindExpr)) + +pprUnwindExpr :: IsLine doc => Rational -> Platform -> UnwindExpr -> doc pprUnwindExpr p env = \case UwConst i -> int i - UwReg g 0 -> ppr g + UwReg g 0 -> pprGlobalReg g UwReg g x -> pprUnwindExpr p env (UwPlus (UwReg g 0) (UwConst x)) UwDeref e -> char '*' <> pprUnwindExpr 3 env e UwLabel l -> pprAsmLabel env l @@ -536,6 +546,8 @@ pprUnwindExpr p env = \case UwTimes e0 e1 | p <= 1 -> pprUnwindExpr 2 env e0 <> char '*' <> pprUnwindExpr 2 env e1 other -> parens (pprUnwindExpr 0 env other) +{-# SPECIALIZE pprUnwindExpr :: Rational -> Platform -> UnwindExpr -> SDoc #-} +{-# SPECIALIZE pprUnwindExpr :: Rational -> Platform -> UnwindExpr -> HLine #-} -- see Note [SPECIALIZE to HDoc] in GHC.Utils.Outputable -- | Conversion of Cmm expressions to unwind expressions. We check for -- unsupported operator usages and simplify the expression as far as |