{-# LANGUAGE CPP #-}

-----------------------------------------------------------------------------
--
-- Pretty-printing assembly language
--
-- (c) The University of Glasgow 1993-2005
--
-----------------------------------------------------------------------------

{-# OPTIONS_GHC -fno-warn-orphans #-}
module X86.Ppr (
        pprNatCmmDecl,
        pprData,
        pprInstr,
        pprFormat,
        pprImm,
        pprDataItem,
)

where

#include "HsVersions.h"

import GhcPrelude

import X86.Regs
import X86.Instr
import X86.Cond
import Instruction
import Format
import Reg
import PprBase


import Hoopl.Collections
import Hoopl.Label
import BasicTypes       (Alignment, mkAlignment, alignmentBytes)
import DynFlags
import Cmm              hiding (topInfoTable)
import BlockId
import CLabel
import Unique           ( pprUniqueAlways )
import GHC.Platform
import FastString
import Outputable

import Data.Word
import Data.Bits

-- -----------------------------------------------------------------------------
-- Printing this stuff out
--
--
-- Note [Subsections Via Symbols]
--
-- If we are using the .subsections_via_symbols directive
-- (available on recent versions of Darwin),
-- we have to make sure that there is some kind of reference
-- from the entry code to a label on the _top_ of of the info table,
-- so that the linker will not think it is unreferenced and dead-strip
-- it. That's why the label is called a DeadStripPreventer (_dsp).
--
-- The LLVM code gen already creates `iTableSuf` symbols, where
-- the X86 would generate the DeadStripPreventer (_dsp) symbol.
-- Therefore all that is left for llvm code gen, is to ensure
-- that all the `iTableSuf` symbols are marked as used.
-- As of this writing the documentation regarding the
-- .subsections_via_symbols and -dead_strip can be found at
-- <https://developer.apple.com/library/mac/documentation/DeveloperTools/Reference/Assembler/040-Assembler_Directives/asm_directives.html#//apple_ref/doc/uid/TP30000823-TPXREF101>

pprProcAlignment :: SDoc
pprProcAlignment :: SDoc
pprProcAlignment = (DynFlags -> SDoc) -> SDoc
sdocWithDynFlags ((DynFlags -> SDoc) -> SDoc) -> (DynFlags -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \DynFlags
dflags ->
  (SDoc -> (Int -> SDoc) -> Maybe Int -> SDoc
forall b a. b -> (a -> b) -> Maybe a -> b
maybe SDoc
empty (Alignment -> SDoc
pprAlign (Alignment -> SDoc) -> (Int -> Alignment) -> Int -> SDoc
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Int -> Alignment
mkAlignment) (DynFlags -> Maybe Int
cmmProcAlignment DynFlags
dflags))

pprNatCmmDecl :: NatCmmDecl (Alignment, CmmStatics) Instr -> SDoc
pprNatCmmDecl :: NatCmmDecl (Alignment, CmmStatics) Instr -> SDoc
pprNatCmmDecl (CmmData Section
section (Alignment, CmmStatics)
dats) =
  Section -> SDoc
pprSectionAlign Section
section SDoc -> SDoc -> SDoc
$$ (Alignment, CmmStatics) -> SDoc
pprDatas (Alignment, CmmStatics)
dats

pprNatCmmDecl proc :: NatCmmDecl (Alignment, CmmStatics) Instr
proc@(CmmProc LabelMap CmmStatics
top_info CLabel
lbl [GlobalReg]
_ (ListGraph [GenBasicBlock Instr]
blocks)) =
  (DynFlags -> SDoc) -> SDoc
sdocWithDynFlags ((DynFlags -> SDoc) -> SDoc) -> (DynFlags -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \DynFlags
dflags ->
  SDoc
pprProcAlignment SDoc -> SDoc -> SDoc
$$
  case NatCmmDecl (Alignment, CmmStatics) Instr -> Maybe CmmStatics
forall a i b. GenCmmDecl a (LabelMap i) (ListGraph b) -> Maybe i
topInfoTable NatCmmDecl (Alignment, CmmStatics) Instr
proc of
    Maybe CmmStatics
Nothing ->
        -- special case for code without info table:
        Section -> SDoc
pprSectionAlign (SectionType -> CLabel -> Section
Section SectionType
Text CLabel
lbl) SDoc -> SDoc -> SDoc
$$
        SDoc
pprProcAlignment SDoc -> SDoc -> SDoc
$$
        CLabel -> SDoc
pprLabel CLabel
lbl SDoc -> SDoc -> SDoc
$$ -- blocks guaranteed not null, so label needed
        [SDoc] -> SDoc
vcat ((GenBasicBlock Instr -> SDoc) -> [GenBasicBlock Instr] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map (LabelMap CmmStatics -> GenBasicBlock Instr -> SDoc
pprBasicBlock LabelMap CmmStatics
top_info) [GenBasicBlock Instr]
blocks) SDoc -> SDoc -> SDoc
$$
        (if DynFlags -> Int
debugLevel DynFlags
dflags Int -> Int -> Bool
forall a. Ord a => a -> a -> Bool
> Int
0
         then CLabel -> SDoc
forall a. Outputable a => a -> SDoc
ppr (CLabel -> CLabel
mkAsmTempEndLabel CLabel
lbl) SDoc -> SDoc -> SDoc
<> Char -> SDoc
char Char
':' else SDoc
empty) SDoc -> SDoc -> SDoc
$$
        CLabel -> SDoc
pprSizeDecl CLabel
lbl

    Just (Statics CLabel
info_lbl [CmmStatic]
_) ->
      (Platform -> SDoc) -> SDoc
sdocWithPlatform ((Platform -> SDoc) -> SDoc) -> (Platform -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \Platform
platform ->
      Section -> SDoc
pprSectionAlign (SectionType -> CLabel -> Section
Section SectionType
Text CLabel
info_lbl) SDoc -> SDoc -> SDoc
$$
      SDoc
pprProcAlignment SDoc -> SDoc -> SDoc
$$
      (if Platform -> Bool
platformHasSubsectionsViaSymbols Platform
platform
          then CLabel -> SDoc
forall a. Outputable a => a -> SDoc
ppr (CLabel -> CLabel
mkDeadStripPreventer CLabel
info_lbl) SDoc -> SDoc -> SDoc
<> Char -> SDoc
char Char
':'
          else SDoc
empty) SDoc -> SDoc -> SDoc
$$
      [SDoc] -> SDoc
vcat ((GenBasicBlock Instr -> SDoc) -> [GenBasicBlock Instr] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map (LabelMap CmmStatics -> GenBasicBlock Instr -> SDoc
pprBasicBlock LabelMap CmmStatics
top_info) [GenBasicBlock Instr]
blocks) SDoc -> SDoc -> SDoc
$$
      -- above: Even the first block gets a label, because with branch-chain
      -- elimination, it might be the target of a goto.
      (if Platform -> Bool
platformHasSubsectionsViaSymbols Platform
platform
       then -- See Note [Subsections Via Symbols]
                String -> SDoc
text String
"\t.long "
            SDoc -> SDoc -> SDoc
<+> CLabel -> SDoc
forall a. Outputable a => a -> SDoc
ppr CLabel
info_lbl
            SDoc -> SDoc -> SDoc
<+> Char -> SDoc
char Char
'-'
            SDoc -> SDoc -> SDoc
<+> CLabel -> SDoc
forall a. Outputable a => a -> SDoc
ppr (CLabel -> CLabel
mkDeadStripPreventer CLabel
info_lbl)
       else SDoc
empty) SDoc -> SDoc -> SDoc
$$
      CLabel -> SDoc
pprSizeDecl CLabel
info_lbl

-- | Output the ELF .size directive.
pprSizeDecl :: CLabel -> SDoc
pprSizeDecl :: CLabel -> SDoc
pprSizeDecl CLabel
lbl
 = (Platform -> SDoc) -> SDoc
sdocWithPlatform ((Platform -> SDoc) -> SDoc) -> (Platform -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \Platform
platform ->
   if OS -> Bool
osElfTarget (Platform -> OS
platformOS Platform
platform)
   then String -> SDoc
text String
"\t.size" SDoc -> SDoc -> SDoc
<+> CLabel -> SDoc
forall a. Outputable a => a -> SDoc
ppr CLabel
lbl SDoc -> SDoc -> SDoc
<> PtrString -> SDoc
ptext (String -> PtrString
sLit String
", .-") SDoc -> SDoc -> SDoc
<> CLabel -> SDoc
forall a. Outputable a => a -> SDoc
ppr CLabel
lbl
   else SDoc
empty

pprBasicBlock :: LabelMap CmmStatics -> NatBasicBlock Instr -> SDoc
pprBasicBlock :: LabelMap CmmStatics -> GenBasicBlock Instr -> SDoc
pprBasicBlock LabelMap CmmStatics
info_env (BasicBlock BlockId
blockid [Instr]
instrs)
  = (DynFlags -> SDoc) -> SDoc
sdocWithDynFlags ((DynFlags -> SDoc) -> SDoc) -> (DynFlags -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \DynFlags
dflags ->
    DynFlags -> SDoc -> SDoc
maybe_infotable DynFlags
dflags (SDoc -> SDoc) -> SDoc -> SDoc
forall a b. (a -> b) -> a -> b
$
    CLabel -> SDoc
pprLabel CLabel
asmLbl SDoc -> SDoc -> SDoc
$$
    [SDoc] -> SDoc
vcat ((Instr -> SDoc) -> [Instr] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map Instr -> SDoc
pprInstr [Instr]
instrs) SDoc -> SDoc -> SDoc
$$
    (if DynFlags -> Int
debugLevel DynFlags
dflags Int -> Int -> Bool
forall a. Ord a => a -> a -> Bool
> Int
0
     then CLabel -> SDoc
forall a. Outputable a => a -> SDoc
ppr (CLabel -> CLabel
mkAsmTempEndLabel CLabel
asmLbl) SDoc -> SDoc -> SDoc
<> Char -> SDoc
char Char
':' else SDoc
empty)
  where
    asmLbl :: CLabel
asmLbl = BlockId -> CLabel
blockLbl BlockId
blockid
    maybe_infotable :: DynFlags -> SDoc -> SDoc
maybe_infotable DynFlags
dflags SDoc
c = case KeyOf LabelMap -> LabelMap CmmStatics -> Maybe CmmStatics
forall (map :: * -> *) a.
IsMap map =>
KeyOf map -> map a -> Maybe a
mapLookup KeyOf LabelMap
BlockId
blockid LabelMap CmmStatics
info_env of
       Maybe CmmStatics
Nothing -> SDoc
c
       Just (Statics CLabel
infoLbl [CmmStatic]
info) ->
           SectionType -> SDoc
pprAlignForSection SectionType
Text SDoc -> SDoc -> SDoc
$$
           SDoc
infoTableLoc SDoc -> SDoc -> SDoc
$$
           [SDoc] -> SDoc
vcat ((CmmStatic -> SDoc) -> [CmmStatic] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map CmmStatic -> SDoc
pprData [CmmStatic]
info) SDoc -> SDoc -> SDoc
$$
           CLabel -> SDoc
pprLabel CLabel
infoLbl SDoc -> SDoc -> SDoc
$$
           SDoc
c SDoc -> SDoc -> SDoc
$$
           (if DynFlags -> Int
debugLevel DynFlags
dflags Int -> Int -> Bool
forall a. Ord a => a -> a -> Bool
> Int
0
            then CLabel -> SDoc
forall a. Outputable a => a -> SDoc
ppr (CLabel -> CLabel
mkAsmTempEndLabel CLabel
infoLbl) SDoc -> SDoc -> SDoc
<> Char -> SDoc
char Char
':' else SDoc
empty)
    -- Make sure the info table has the right .loc for the block
    -- coming right after it. See [Note: Info Offset]
    infoTableLoc :: SDoc
infoTableLoc = case [Instr]
instrs of
      (l :: Instr
l@LOCATION{} : [Instr]
_) -> Instr -> SDoc
pprInstr Instr
l
      [Instr]
_other             -> SDoc
empty


pprDatas :: (Alignment, CmmStatics) -> SDoc
-- See note [emit-time elimination of static indirections] in CLabel.
pprDatas :: (Alignment, CmmStatics) -> SDoc
pprDatas (Alignment
_, Statics CLabel
alias [CmmStaticLit (CmmLabel CLabel
lbl), CmmStaticLit CmmLit
ind, CmmStatic
_, CmmStatic
_])
  | CLabel
lbl CLabel -> CLabel -> Bool
forall a. Eq a => a -> a -> Bool
== CLabel
mkIndStaticInfoLabel
  , let labelInd :: CmmLit -> Maybe CLabel
labelInd (CmmLabelOff CLabel
l Int
_) = CLabel -> Maybe CLabel
forall a. a -> Maybe a
Just CLabel
l
        labelInd (CmmLabel CLabel
l) = CLabel -> Maybe CLabel
forall a. a -> Maybe a
Just CLabel
l
        labelInd CmmLit
_ = Maybe CLabel
forall a. Maybe a
Nothing
  , Just CLabel
ind' <- CmmLit -> Maybe CLabel
labelInd CmmLit
ind
  , CLabel
alias CLabel -> CLabel -> Bool
`mayRedirectTo` CLabel
ind'
  = CLabel -> SDoc
pprGloblDecl CLabel
alias
    SDoc -> SDoc -> SDoc
$$ String -> SDoc
text String
".equiv" SDoc -> SDoc -> SDoc
<+> CLabel -> SDoc
forall a. Outputable a => a -> SDoc
ppr CLabel
alias SDoc -> SDoc -> SDoc
<> SDoc
comma SDoc -> SDoc -> SDoc
<> CmmLit -> SDoc
forall a. Outputable a => a -> SDoc
ppr (CLabel -> CmmLit
CmmLabel CLabel
ind')

pprDatas (Alignment
align, (Statics CLabel
lbl [CmmStatic]
dats))
 = [SDoc] -> SDoc
vcat (Alignment -> SDoc
pprAlign Alignment
align SDoc -> [SDoc] -> [SDoc]
forall a. a -> [a] -> [a]
: CLabel -> SDoc
pprLabel CLabel
lbl SDoc -> [SDoc] -> [SDoc]
forall a. a -> [a] -> [a]
: (CmmStatic -> SDoc) -> [CmmStatic] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map CmmStatic -> SDoc
pprData [CmmStatic]
dats)

pprData :: CmmStatic -> SDoc
pprData :: CmmStatic -> SDoc
pprData (CmmString ByteString
str) = ByteString -> SDoc
pprBytes ByteString
str

pprData (CmmUninitialised Int
bytes)
 = (Platform -> SDoc) -> SDoc
sdocWithPlatform ((Platform -> SDoc) -> SDoc) -> (Platform -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \Platform
platform ->
   if Platform -> OS
platformOS Platform
platform OS -> OS -> Bool
forall a. Eq a => a -> a -> Bool
== OS
OSDarwin then String -> SDoc
text String
".space " SDoc -> SDoc -> SDoc
<> Int -> SDoc
int Int
bytes
                                      else String -> SDoc
text String
".skip "  SDoc -> SDoc -> SDoc
<> Int -> SDoc
int Int
bytes

pprData (CmmStaticLit CmmLit
lit) = CmmLit -> SDoc
pprDataItem CmmLit
lit

pprGloblDecl :: CLabel -> SDoc
pprGloblDecl :: CLabel -> SDoc
pprGloblDecl CLabel
lbl
  | Bool -> Bool
not (CLabel -> Bool
externallyVisibleCLabel CLabel
lbl) = SDoc
empty
  | Bool
otherwise = String -> SDoc
text String
".globl " SDoc -> SDoc -> SDoc
<> CLabel -> SDoc
forall a. Outputable a => a -> SDoc
ppr CLabel
lbl

pprLabelType' :: DynFlags -> CLabel -> SDoc
pprLabelType' :: DynFlags -> CLabel -> SDoc
pprLabelType' DynFlags
dflags CLabel
lbl =
  if CLabel -> Bool
isCFunctionLabel CLabel
lbl Bool -> Bool -> Bool
|| Bool
functionOkInfoTable then
    String -> SDoc
text String
"@function"
  else
    String -> SDoc
text String
"@object"
  where
    {-
    NOTE: This is a bit hacky.

    With the `tablesNextToCode` info tables look like this:
    ```
      <info table data>
    label_info:
      <info table code>
    ```
    So actually info table label points exactly to the code and we can mark
    the label as @function. (This is required to make perf and potentially other
    tools to work on Haskell binaries).
    This usually works well but it can cause issues with a linker.
    A linker uses different algorithms for the relocation depending on
    the symbol type.For some reason, a linker will generate JUMP_SLOT relocation
    when constructor info table is referenced from a data section.
    This only happens with static constructor call so
    we mark _con_info symbols as `@object` to avoid the issue with relocations.

    @SimonMarlow hack explanation:
    "The reasoning goes like this:

    * The danger when we mark a symbol as `@function` is that the linker will
      redirect it to point to the PLT and use a `JUMP_SLOT` relocation when
      the symbol refers to something outside the current shared object.
      A PLT / JUMP_SLOT reference only works for symbols that we jump to, not
      for symbols representing data,, nor for info table symbol references which
      we expect to point directly to the info table.
    * GHC generates code that might refer to any info table symbol from the text
      segment, but that's OK, because those will be explicit GOT references
      generated by the code generator.
    * When we refer to info tables from the data segment, it's either
      * a FUN_STATIC/THUNK_STATIC local to this module
      * a `con_info` that could be from anywhere

    So, the only info table symbols that we might refer to from the data segment
    of another shared object are `con_info` symbols, so those are the ones we
    need to exclude from getting the @function treatment.
    "

    A good place to check for more
    https://gitlab.haskell.org/ghc/ghc/wikis/commentary/position-independent-code

    Another possible hack is to create an extra local function symbol for
    every code-like thing to give the needed information for to the tools
    but mess up with the relocation. https://phabricator.haskell.org/D4730
    -}
    functionOkInfoTable :: Bool
functionOkInfoTable = DynFlags -> Bool
tablesNextToCode DynFlags
dflags Bool -> Bool -> Bool
&&
      CLabel -> Bool
isInfoTableLabel CLabel
lbl Bool -> Bool -> Bool
&& Bool -> Bool
not (CLabel -> Bool
isConInfoTableLabel CLabel
lbl)


pprTypeDecl :: CLabel -> SDoc
pprTypeDecl :: CLabel -> SDoc
pprTypeDecl CLabel
lbl
    = (Platform -> SDoc) -> SDoc
sdocWithPlatform ((Platform -> SDoc) -> SDoc) -> (Platform -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \Platform
platform ->
      if OS -> Bool
osElfTarget (Platform -> OS
platformOS Platform
platform) Bool -> Bool -> Bool
&& CLabel -> Bool
externallyVisibleCLabel CLabel
lbl
      then
        (DynFlags -> SDoc) -> SDoc
sdocWithDynFlags ((DynFlags -> SDoc) -> SDoc) -> (DynFlags -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \DynFlags
df ->
          String -> SDoc
text String
".type " SDoc -> SDoc -> SDoc
<> CLabel -> SDoc
forall a. Outputable a => a -> SDoc
ppr CLabel
lbl SDoc -> SDoc -> SDoc
<> PtrString -> SDoc
ptext (String -> PtrString
sLit  String
", ") SDoc -> SDoc -> SDoc
<> DynFlags -> CLabel -> SDoc
pprLabelType' DynFlags
df CLabel
lbl
      else SDoc
empty

pprLabel :: CLabel -> SDoc
pprLabel :: CLabel -> SDoc
pprLabel CLabel
lbl = CLabel -> SDoc
pprGloblDecl CLabel
lbl
            SDoc -> SDoc -> SDoc
$$ CLabel -> SDoc
pprTypeDecl CLabel
lbl
            SDoc -> SDoc -> SDoc
$$ (CLabel -> SDoc
forall a. Outputable a => a -> SDoc
ppr CLabel
lbl SDoc -> SDoc -> SDoc
<> Char -> SDoc
char Char
':')

pprAlign :: Alignment -> SDoc
pprAlign :: Alignment -> SDoc
pprAlign Alignment
alignment
        = (Platform -> SDoc) -> SDoc
sdocWithPlatform ((Platform -> SDoc) -> SDoc) -> (Platform -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \Platform
platform ->
          String -> SDoc
text String
".align " SDoc -> SDoc -> SDoc
<> Int -> SDoc
int (Platform -> Int
alignmentOn Platform
platform)
  where
        bytes :: Int
bytes = Alignment -> Int
alignmentBytes Alignment
alignment
        alignmentOn :: Platform -> Int
alignmentOn Platform
platform = if Platform -> OS
platformOS Platform
platform OS -> OS -> Bool
forall a. Eq a => a -> a -> Bool
== OS
OSDarwin
                               then Int -> Int
log2 Int
bytes
                               else      Int
bytes

        log2 :: Int -> Int  -- cache the common ones
        log2 :: Int -> Int
log2 Int
1 = Int
0
        log2 Int
2 = Int
1
        log2 Int
4 = Int
2
        log2 Int
8 = Int
3
        log2 Int
n = Int
1 Int -> Int -> Int
forall a. Num a => a -> a -> a
+ Int -> Int
log2 (Int
n Int -> Int -> Int
forall a. Integral a => a -> a -> a
`quot` Int
2)

-- -----------------------------------------------------------------------------
-- pprInstr: print an 'Instr'

instance Outputable Instr where
    ppr :: Instr -> SDoc
ppr Instr
instr = Instr -> SDoc
pprInstr Instr
instr


pprReg :: Format -> Reg -> SDoc
pprReg :: Format -> Reg -> SDoc
pprReg Format
f Reg
r
  = case Reg
r of
      RegReal    (RealRegSingle Int
i) ->
          (Platform -> SDoc) -> SDoc
sdocWithPlatform ((Platform -> SDoc) -> SDoc) -> (Platform -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \Platform
platform ->
          if Platform -> Bool
target32Bit Platform
platform then Format -> Int -> SDoc
ppr32_reg_no Format
f Int
i
                                  else Format -> Int -> SDoc
ppr64_reg_no Format
f Int
i
      RegReal    (RealRegPair Int
_ Int
_) -> String -> SDoc
forall a. String -> a
panic String
"X86.Ppr: no reg pairs on this arch"
      RegVirtual (VirtualRegI  Unique
u)  -> String -> SDoc
text String
"%vI_"   SDoc -> SDoc -> SDoc
<> Unique -> SDoc
pprUniqueAlways Unique
u
      RegVirtual (VirtualRegHi Unique
u)  -> String -> SDoc
text String
"%vHi_"  SDoc -> SDoc -> SDoc
<> Unique -> SDoc
pprUniqueAlways Unique
u
      RegVirtual (VirtualRegF  Unique
u)  -> String -> SDoc
text String
"%vF_"   SDoc -> SDoc -> SDoc
<> Unique -> SDoc
pprUniqueAlways Unique
u
      RegVirtual (VirtualRegD  Unique
u)  -> String -> SDoc
text String
"%vD_"   SDoc -> SDoc -> SDoc
<> Unique -> SDoc
pprUniqueAlways Unique
u

  where
    ppr32_reg_no :: Format -> Int -> SDoc
    ppr32_reg_no :: Format -> Int -> SDoc
ppr32_reg_no Format
II8   = Int -> SDoc
forall a. (Eq a, Num a, Show a) => a -> SDoc
ppr32_reg_byte
    ppr32_reg_no Format
II16  = Int -> SDoc
forall a. (Eq a, Num a) => a -> SDoc
ppr32_reg_word
    ppr32_reg_no Format
_     = Int -> SDoc
ppr32_reg_long

    ppr32_reg_byte :: a -> SDoc
ppr32_reg_byte a
i = PtrString -> SDoc
ptext
      (case a
i of {
         a
0 -> String -> PtrString
sLit String
"%al";     a
1 -> String -> PtrString
sLit String
"%bl";
         a
2 -> String -> PtrString
sLit String
"%cl";     a
3 -> String -> PtrString
sLit String
"%dl";
        a
_  -> String -> PtrString
sLit (String -> PtrString) -> String -> PtrString
forall a b. (a -> b) -> a -> b
$ String
"very naughty I386 byte register: " String -> String -> String
forall a. [a] -> [a] -> [a]
++ a -> String
forall a. Show a => a -> String
show a
i
      })

    ppr32_reg_word :: a -> SDoc
ppr32_reg_word a
i = PtrString -> SDoc
ptext
      (case a
i of {
         a
0 -> String -> PtrString
sLit String
"%ax";     a
1 -> String -> PtrString
sLit String
"%bx";
         a
2 -> String -> PtrString
sLit String
"%cx";     a
3 -> String -> PtrString
sLit String
"%dx";
         a
4 -> String -> PtrString
sLit String
"%si";     a
5 -> String -> PtrString
sLit String
"%di";
         a
6 -> String -> PtrString
sLit String
"%bp";     a
7 -> String -> PtrString
sLit String
"%sp";
        a
_  -> String -> PtrString
sLit String
"very naughty I386 word register"
      })

    ppr32_reg_long :: Int -> SDoc
ppr32_reg_long Int
i = PtrString -> SDoc
ptext
      (case Int
i of {
         Int
0 -> String -> PtrString
sLit String
"%eax";    Int
1 -> String -> PtrString
sLit String
"%ebx";
         Int
2 -> String -> PtrString
sLit String
"%ecx";    Int
3 -> String -> PtrString
sLit String
"%edx";
         Int
4 -> String -> PtrString
sLit String
"%esi";    Int
5 -> String -> PtrString
sLit String
"%edi";
         Int
6 -> String -> PtrString
sLit String
"%ebp";    Int
7 -> String -> PtrString
sLit String
"%esp";
         Int
_  -> Int -> PtrString
ppr_reg_float Int
i
      })

    ppr64_reg_no :: Format -> Int -> SDoc
    ppr64_reg_no :: Format -> Int -> SDoc
ppr64_reg_no Format
II8   = Int -> SDoc
forall a. (Eq a, Num a, Show a) => a -> SDoc
ppr64_reg_byte
    ppr64_reg_no Format
II16  = Int -> SDoc
forall a. (Eq a, Num a) => a -> SDoc
ppr64_reg_word
    ppr64_reg_no Format
II32  = Int -> SDoc
forall a. (Eq a, Num a) => a -> SDoc
ppr64_reg_long
    ppr64_reg_no Format
_     = Int -> SDoc
ppr64_reg_quad

    ppr64_reg_byte :: a -> SDoc
ppr64_reg_byte a
i = PtrString -> SDoc
ptext
      (case a
i of {
         a
0 -> String -> PtrString
sLit String
"%al";     a
1 -> String -> PtrString
sLit String
"%bl";
         a
2 -> String -> PtrString
sLit String
"%cl";     a
3 -> String -> PtrString
sLit String
"%dl";
         a
4 -> String -> PtrString
sLit String
"%sil";    a
5 -> String -> PtrString
sLit String
"%dil"; -- new 8-bit regs!
         a
6 -> String -> PtrString
sLit String
"%bpl";    a
7 -> String -> PtrString
sLit String
"%spl";
         a
8 -> String -> PtrString
sLit String
"%r8b";    a
9  -> String -> PtrString
sLit String
"%r9b";
        a
10 -> String -> PtrString
sLit String
"%r10b";   a
11 -> String -> PtrString
sLit String
"%r11b";
        a
12 -> String -> PtrString
sLit String
"%r12b";   a
13 -> String -> PtrString
sLit String
"%r13b";
        a
14 -> String -> PtrString
sLit String
"%r14b";   a
15 -> String -> PtrString
sLit String
"%r15b";
        a
_  -> String -> PtrString
sLit (String -> PtrString) -> String -> PtrString
forall a b. (a -> b) -> a -> b
$ String
"very naughty x86_64 byte register: " String -> String -> String
forall a. [a] -> [a] -> [a]
++ a -> String
forall a. Show a => a -> String
show a
i
      })

    ppr64_reg_word :: a -> SDoc
ppr64_reg_word a
i = PtrString -> SDoc
ptext
      (case a
i of {
         a
0 -> String -> PtrString
sLit String
"%ax";     a
1 -> String -> PtrString
sLit String
"%bx";
         a
2 -> String -> PtrString
sLit String
"%cx";     a
3 -> String -> PtrString
sLit String
"%dx";
         a
4 -> String -> PtrString
sLit String
"%si";     a
5 -> String -> PtrString
sLit String
"%di";
         a
6 -> String -> PtrString
sLit String
"%bp";     a
7 -> String -> PtrString
sLit String
"%sp";
         a
8 -> String -> PtrString
sLit String
"%r8w";    a
9  -> String -> PtrString
sLit String
"%r9w";
        a
10 -> String -> PtrString
sLit String
"%r10w";   a
11 -> String -> PtrString
sLit String
"%r11w";
        a
12 -> String -> PtrString
sLit String
"%r12w";   a
13 -> String -> PtrString
sLit String
"%r13w";
        a
14 -> String -> PtrString
sLit String
"%r14w";   a
15 -> String -> PtrString
sLit String
"%r15w";
        a
_  -> String -> PtrString
sLit String
"very naughty x86_64 word register"
      })

    ppr64_reg_long :: a -> SDoc
ppr64_reg_long a
i = PtrString -> SDoc
ptext
      (case a
i of {
         a
0 -> String -> PtrString
sLit String
"%eax";    a
1  -> String -> PtrString
sLit String
"%ebx";
         a
2 -> String -> PtrString
sLit String
"%ecx";    a
3  -> String -> PtrString
sLit String
"%edx";
         a
4 -> String -> PtrString
sLit String
"%esi";    a
5  -> String -> PtrString
sLit String
"%edi";
         a
6 -> String -> PtrString
sLit String
"%ebp";    a
7  -> String -> PtrString
sLit String
"%esp";
         a
8 -> String -> PtrString
sLit String
"%r8d";    a
9  -> String -> PtrString
sLit String
"%r9d";
        a
10 -> String -> PtrString
sLit String
"%r10d";   a
11 -> String -> PtrString
sLit String
"%r11d";
        a
12 -> String -> PtrString
sLit String
"%r12d";   a
13 -> String -> PtrString
sLit String
"%r13d";
        a
14 -> String -> PtrString
sLit String
"%r14d";   a
15 -> String -> PtrString
sLit String
"%r15d";
        a
_  -> String -> PtrString
sLit String
"very naughty x86_64 register"
      })

    ppr64_reg_quad :: Int -> SDoc
ppr64_reg_quad Int
i = PtrString -> SDoc
ptext
      (case Int
i of {
         Int
0 -> String -> PtrString
sLit String
"%rax";      Int
1 -> String -> PtrString
sLit String
"%rbx";
         Int
2 -> String -> PtrString
sLit String
"%rcx";      Int
3 -> String -> PtrString
sLit String
"%rdx";
         Int
4 -> String -> PtrString
sLit String
"%rsi";      Int
5 -> String -> PtrString
sLit String
"%rdi";
         Int
6 -> String -> PtrString
sLit String
"%rbp";      Int
7 -> String -> PtrString
sLit String
"%rsp";
         Int
8 -> String -> PtrString
sLit String
"%r8";       Int
9 -> String -> PtrString
sLit String
"%r9";
        Int
10 -> String -> PtrString
sLit String
"%r10";    Int
11 -> String -> PtrString
sLit String
"%r11";
        Int
12 -> String -> PtrString
sLit String
"%r12";    Int
13 -> String -> PtrString
sLit String
"%r13";
        Int
14 -> String -> PtrString
sLit String
"%r14";    Int
15 -> String -> PtrString
sLit String
"%r15";
        Int
_  -> Int -> PtrString
ppr_reg_float Int
i
      })

ppr_reg_float :: Int -> PtrString
ppr_reg_float :: Int -> PtrString
ppr_reg_float Int
i = case Int
i of
        Int
16 -> String -> PtrString
sLit String
"%xmm0" ;   Int
17 -> String -> PtrString
sLit String
"%xmm1"
        Int
18 -> String -> PtrString
sLit String
"%xmm2" ;   Int
19 -> String -> PtrString
sLit String
"%xmm3"
        Int
20 -> String -> PtrString
sLit String
"%xmm4" ;   Int
21 -> String -> PtrString
sLit String
"%xmm5"
        Int
22 -> String -> PtrString
sLit String
"%xmm6" ;   Int
23 -> String -> PtrString
sLit String
"%xmm7"
        Int
24 -> String -> PtrString
sLit String
"%xmm8" ;   Int
25 -> String -> PtrString
sLit String
"%xmm9"
        Int
26 -> String -> PtrString
sLit String
"%xmm10";   Int
27 -> String -> PtrString
sLit String
"%xmm11"
        Int
28 -> String -> PtrString
sLit String
"%xmm12";   Int
29 -> String -> PtrString
sLit String
"%xmm13"
        Int
30 -> String -> PtrString
sLit String
"%xmm14";   Int
31 -> String -> PtrString
sLit String
"%xmm15"
        Int
_  -> String -> PtrString
sLit String
"very naughty x86 register"

pprFormat :: Format -> SDoc
pprFormat :: Format -> SDoc
pprFormat Format
x
 = PtrString -> SDoc
ptext (case Format
x of
                Format
II8   -> String -> PtrString
sLit String
"b"
                Format
II16  -> String -> PtrString
sLit String
"w"
                Format
II32  -> String -> PtrString
sLit String
"l"
                Format
II64  -> String -> PtrString
sLit String
"q"
                Format
FF32  -> String -> PtrString
sLit String
"ss"      -- "scalar single-precision float" (SSE2)
                Format
FF64  -> String -> PtrString
sLit String
"sd"      -- "scalar double-precision float" (SSE2)
                )

pprFormat_x87 :: Format -> SDoc
pprFormat_x87 :: Format -> SDoc
pprFormat_x87 Format
x
  = PtrString -> SDoc
ptext (PtrString -> SDoc) -> PtrString -> SDoc
forall a b. (a -> b) -> a -> b
$ case Format
x of
                Format
FF32  -> String -> PtrString
sLit String
"s"
                Format
FF64  -> String -> PtrString
sLit String
"l"
                Format
_     -> String -> PtrString
forall a. String -> a
panic String
"X86.Ppr.pprFormat_x87"


pprCond :: Cond -> SDoc
pprCond :: Cond -> SDoc
pprCond Cond
c
 = PtrString -> SDoc
ptext (case Cond
c of {
                Cond
GEU     -> String -> PtrString
sLit String
"ae";   Cond
LU    -> String -> PtrString
sLit String
"b";
                Cond
EQQ     -> String -> PtrString
sLit String
"e";    Cond
GTT   -> String -> PtrString
sLit String
"g";
                Cond
GE      -> String -> PtrString
sLit String
"ge";   Cond
GU    -> String -> PtrString
sLit String
"a";
                Cond
LTT     -> String -> PtrString
sLit String
"l";    Cond
LE    -> String -> PtrString
sLit String
"le";
                Cond
LEU     -> String -> PtrString
sLit String
"be";   Cond
NE    -> String -> PtrString
sLit String
"ne";
                Cond
NEG     -> String -> PtrString
sLit String
"s";    Cond
POS   -> String -> PtrString
sLit String
"ns";
                Cond
CARRY   -> String -> PtrString
sLit String
"c";   Cond
OFLO  -> String -> PtrString
sLit String
"o";
                Cond
PARITY  -> String -> PtrString
sLit String
"p";   Cond
NOTPARITY -> String -> PtrString
sLit String
"np";
                Cond
ALWAYS  -> String -> PtrString
sLit String
"mp"})


pprImm :: Imm -> SDoc
pprImm :: Imm -> SDoc
pprImm (ImmInt Int
i)     = Int -> SDoc
int Int
i
pprImm (ImmInteger Integer
i) = Integer -> SDoc
integer Integer
i
pprImm (ImmCLbl CLabel
l)    = CLabel -> SDoc
forall a. Outputable a => a -> SDoc
ppr CLabel
l
pprImm (ImmIndex CLabel
l Int
i) = CLabel -> SDoc
forall a. Outputable a => a -> SDoc
ppr CLabel
l SDoc -> SDoc -> SDoc
<> Char -> SDoc
char Char
'+' SDoc -> SDoc -> SDoc
<> Int -> SDoc
int Int
i
pprImm (ImmLit SDoc
s)     = SDoc
s

pprImm (ImmFloat Rational
_)  = String -> SDoc
text String
"naughty float immediate"
pprImm (ImmDouble Rational
_) = String -> SDoc
text String
"naughty double immediate"

pprImm (ImmConstantSum Imm
a Imm
b) = Imm -> SDoc
pprImm Imm
a SDoc -> SDoc -> SDoc
<> Char -> SDoc
char Char
'+' SDoc -> SDoc -> SDoc
<> Imm -> SDoc
pprImm Imm
b
pprImm (ImmConstantDiff Imm
a Imm
b) = Imm -> SDoc
pprImm Imm
a SDoc -> SDoc -> SDoc
<> Char -> SDoc
char Char
'-'
                            SDoc -> SDoc -> SDoc
<> SDoc
lparen SDoc -> SDoc -> SDoc
<> Imm -> SDoc
pprImm Imm
b SDoc -> SDoc -> SDoc
<> SDoc
rparen



pprAddr :: AddrMode -> SDoc
pprAddr :: AddrMode -> SDoc
pprAddr (ImmAddr Imm
imm Int
off)
  = let pp_imm :: SDoc
pp_imm = Imm -> SDoc
pprImm Imm
imm
    in
    if (Int
off Int -> Int -> Bool
forall a. Eq a => a -> a -> Bool
== Int
0) then
        SDoc
pp_imm
    else if (Int
off Int -> Int -> Bool
forall a. Ord a => a -> a -> Bool
< Int
0) then
        SDoc
pp_imm SDoc -> SDoc -> SDoc
<> Int -> SDoc
int Int
off
    else
        SDoc
pp_imm SDoc -> SDoc -> SDoc
<> Char -> SDoc
char Char
'+' SDoc -> SDoc -> SDoc
<> Int -> SDoc
int Int
off

pprAddr (AddrBaseIndex EABase
base EAIndex
index Imm
displacement)
  = (Platform -> SDoc) -> SDoc
sdocWithPlatform ((Platform -> SDoc) -> SDoc) -> (Platform -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \Platform
platform ->
    let
        pp_disp :: SDoc
pp_disp  = Imm -> SDoc
ppr_disp Imm
displacement
        pp_off :: SDoc -> SDoc
pp_off SDoc
p = SDoc
pp_disp SDoc -> SDoc -> SDoc
<> Char -> SDoc
char Char
'(' SDoc -> SDoc -> SDoc
<> SDoc
p SDoc -> SDoc -> SDoc
<> Char -> SDoc
char Char
')'
        pp_reg :: Reg -> SDoc
pp_reg Reg
r = Format -> Reg -> SDoc
pprReg (Bool -> Format
archWordFormat (Platform -> Bool
target32Bit Platform
platform)) Reg
r
    in
    case (EABase
base, EAIndex
index) of
      (EABase
EABaseNone,  EAIndex
EAIndexNone) -> SDoc
pp_disp
      (EABaseReg Reg
b, EAIndex
EAIndexNone) -> SDoc -> SDoc
pp_off (Reg -> SDoc
pp_reg Reg
b)
      (EABase
EABaseRip,   EAIndex
EAIndexNone) -> SDoc -> SDoc
pp_off (String -> SDoc
text String
"%rip")
      (EABase
EABaseNone,  EAIndex Reg
r Int
i) -> SDoc -> SDoc
pp_off (SDoc
comma SDoc -> SDoc -> SDoc
<> Reg -> SDoc
pp_reg Reg
r SDoc -> SDoc -> SDoc
<> SDoc
comma SDoc -> SDoc -> SDoc
<> Int -> SDoc
int Int
i)
      (EABaseReg Reg
b, EAIndex Reg
r Int
i) -> SDoc -> SDoc
pp_off (Reg -> SDoc
pp_reg Reg
b SDoc -> SDoc -> SDoc
<> SDoc
comma SDoc -> SDoc -> SDoc
<> Reg -> SDoc
pp_reg Reg
r
                                       SDoc -> SDoc -> SDoc
<> SDoc
comma SDoc -> SDoc -> SDoc
<> Int -> SDoc
int Int
i)
      (EABase, EAIndex)
_                         -> String -> SDoc
forall a. String -> a
panic String
"X86.Ppr.pprAddr: no match"

  where
    ppr_disp :: Imm -> SDoc
ppr_disp (ImmInt Int
0) = SDoc
empty
    ppr_disp Imm
imm        = Imm -> SDoc
pprImm Imm
imm

-- | Print section header and appropriate alignment for that section.
pprSectionAlign :: Section -> SDoc
pprSectionAlign :: Section -> SDoc
pprSectionAlign (Section (OtherSection String
_) CLabel
_) =
     String -> SDoc
forall a. String -> a
panic String
"X86.Ppr.pprSectionAlign: unknown section"
pprSectionAlign sec :: Section
sec@(Section SectionType
seg CLabel
_) =
  (Platform -> SDoc) -> SDoc
sdocWithPlatform ((Platform -> SDoc) -> SDoc) -> (Platform -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \Platform
platform ->
    Platform -> Section -> SDoc
pprSectionHeader Platform
platform Section
sec SDoc -> SDoc -> SDoc
$$
    SectionType -> SDoc
pprAlignForSection SectionType
seg

-- | Print appropriate alignment for the given section type.
pprAlignForSection :: SectionType -> SDoc
pprAlignForSection :: SectionType -> SDoc
pprAlignForSection SectionType
seg =
  (Platform -> SDoc) -> SDoc
sdocWithPlatform ((Platform -> SDoc) -> SDoc) -> (Platform -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \Platform
platform ->
    String -> SDoc
text String
".align " SDoc -> SDoc -> SDoc
<>
    case Platform -> OS
platformOS Platform
platform of
      -- Darwin: alignments are given as shifts.
      OS
OSDarwin
       | Platform -> Bool
target32Bit Platform
platform ->
          case SectionType
seg of
           SectionType
ReadOnlyData16    -> Int -> SDoc
int Int
4
           SectionType
CString           -> Int -> SDoc
int Int
1
           SectionType
_                 -> Int -> SDoc
int Int
2
       | Bool
otherwise ->
          case SectionType
seg of
           SectionType
ReadOnlyData16    -> Int -> SDoc
int Int
4
           SectionType
CString           -> Int -> SDoc
int Int
1
           SectionType
_                 -> Int -> SDoc
int Int
3
      -- Other: alignments are given as bytes.
      OS
_
       | Platform -> Bool
target32Bit Platform
platform ->
          case SectionType
seg of
           SectionType
Text              -> String -> SDoc
text String
"4,0x90"
           SectionType
ReadOnlyData16    -> Int -> SDoc
int Int
16
           SectionType
CString           -> Int -> SDoc
int Int
1
           SectionType
_                 -> Int -> SDoc
int Int
4
       | Bool
otherwise ->
          case SectionType
seg of
           SectionType
ReadOnlyData16    -> Int -> SDoc
int Int
16
           SectionType
CString           -> Int -> SDoc
int Int
1
           SectionType
_                 -> Int -> SDoc
int Int
8

pprDataItem :: CmmLit -> SDoc
pprDataItem :: CmmLit -> SDoc
pprDataItem CmmLit
lit = (DynFlags -> SDoc) -> SDoc
sdocWithDynFlags ((DynFlags -> SDoc) -> SDoc) -> (DynFlags -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \DynFlags
dflags -> DynFlags -> CmmLit -> SDoc
pprDataItem' DynFlags
dflags CmmLit
lit

pprDataItem' :: DynFlags -> CmmLit -> SDoc
pprDataItem' :: DynFlags -> CmmLit -> SDoc
pprDataItem' DynFlags
dflags CmmLit
lit
  = [SDoc] -> SDoc
vcat (Format -> CmmLit -> [SDoc]
ppr_item (CmmType -> Format
cmmTypeFormat (CmmType -> Format) -> CmmType -> Format
forall a b. (a -> b) -> a -> b
$ DynFlags -> CmmLit -> CmmType
cmmLitType DynFlags
dflags CmmLit
lit) CmmLit
lit)
    where
        platform :: Platform
platform = DynFlags -> Platform
targetPlatform DynFlags
dflags
        imm :: Imm
imm = CmmLit -> Imm
litToImm CmmLit
lit

        -- These seem to be common:
        ppr_item :: Format -> CmmLit -> [SDoc]
ppr_item Format
II8   CmmLit
_ = [String -> SDoc
text String
"\t.byte\t" SDoc -> SDoc -> SDoc
<> Imm -> SDoc
pprImm Imm
imm]
        ppr_item Format
II16  CmmLit
_ = [String -> SDoc
text String
"\t.word\t" SDoc -> SDoc -> SDoc
<> Imm -> SDoc
pprImm Imm
imm]
        ppr_item Format
II32  CmmLit
_ = [String -> SDoc
text String
"\t.long\t" SDoc -> SDoc -> SDoc
<> Imm -> SDoc
pprImm Imm
imm]

        ppr_item Format
FF32  (CmmFloat Rational
r Width
_)
           = let bs :: [Int]
bs = Float -> [Int]
floatToBytes (Rational -> Float
forall a. Fractional a => Rational -> a
fromRational Rational
r)
             in  (Int -> SDoc) -> [Int] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map (\Int
b -> String -> SDoc
text String
"\t.byte\t" SDoc -> SDoc -> SDoc
<> Imm -> SDoc
pprImm (Int -> Imm
ImmInt Int
b)) [Int]
bs

        ppr_item Format
FF64 (CmmFloat Rational
r Width
_)
           = let bs :: [Int]
bs = Double -> [Int]
doubleToBytes (Rational -> Double
forall a. Fractional a => Rational -> a
fromRational Rational
r)
             in  (Int -> SDoc) -> [Int] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map (\Int
b -> String -> SDoc
text String
"\t.byte\t" SDoc -> SDoc -> SDoc
<> Imm -> SDoc
pprImm (Int -> Imm
ImmInt Int
b)) [Int]
bs

        ppr_item Format
II64 CmmLit
_
            = case Platform -> OS
platformOS Platform
platform of
              OS
OSDarwin
               | Platform -> Bool
target32Bit Platform
platform ->
                  case CmmLit
lit of
                  CmmInt Integer
x Width
_ ->
                      [String -> SDoc
text String
"\t.long\t"
                          SDoc -> SDoc -> SDoc
<> Int -> SDoc
int (Word32 -> Int
forall a b. (Integral a, Num b) => a -> b
fromIntegral (Integer -> Word32
forall a b. (Integral a, Num b) => a -> b
fromIntegral Integer
x :: Word32)),
                       String -> SDoc
text String
"\t.long\t"
                          SDoc -> SDoc -> SDoc
<> Int -> SDoc
int (Word32 -> Int
forall a b. (Integral a, Num b) => a -> b
fromIntegral
                              (Integer -> Word32
forall a b. (Integral a, Num b) => a -> b
fromIntegral (Integer
x Integer -> Int -> Integer
forall a. Bits a => a -> Int -> a
`shiftR` Int
32) :: Word32))]
                  CmmLit
_ -> String -> [SDoc]
forall a. String -> a
panic String
"X86.Ppr.ppr_item: no match for II64"
               | Bool
otherwise ->
                  [String -> SDoc
text String
"\t.quad\t" SDoc -> SDoc -> SDoc
<> Imm -> SDoc
pprImm Imm
imm]
              OS
_
               | Platform -> Bool
target32Bit Platform
platform ->
                  [String -> SDoc
text String
"\t.quad\t" SDoc -> SDoc -> SDoc
<> Imm -> SDoc
pprImm Imm
imm]
               | Bool
otherwise ->
                  -- x86_64: binutils can't handle the R_X86_64_PC64
                  -- relocation type, which means we can't do
                  -- pc-relative 64-bit addresses. Fortunately we're
                  -- assuming the small memory model, in which all such
                  -- offsets will fit into 32 bits, so we have to stick
                  -- to 32-bit offset fields and modify the RTS
                  -- appropriately
                  --
                  -- See Note [x86-64-relative] in includes/rts/storage/InfoTables.h
                  --
                  case CmmLit
lit of
                  -- A relative relocation:
                  CmmLabelDiffOff CLabel
_ CLabel
_ Int
_ Width
_ ->
                      [String -> SDoc
text String
"\t.long\t" SDoc -> SDoc -> SDoc
<> Imm -> SDoc
pprImm Imm
imm,
                       String -> SDoc
text String
"\t.long\t0"]
                  CmmLit
_ ->
                      [String -> SDoc
text String
"\t.quad\t" SDoc -> SDoc -> SDoc
<> Imm -> SDoc
pprImm Imm
imm]

        ppr_item Format
_ CmmLit
_
                = String -> [SDoc]
forall a. String -> a
panic String
"X86.Ppr.ppr_item: no match"


asmComment :: SDoc -> SDoc
asmComment :: SDoc -> SDoc
asmComment SDoc
c = SDoc -> SDoc
whenPprDebug (SDoc -> SDoc) -> SDoc -> SDoc
forall a b. (a -> b) -> a -> b
$ String -> SDoc
text String
"# " SDoc -> SDoc -> SDoc
<> SDoc
c

pprInstr :: Instr -> SDoc

pprInstr :: Instr -> SDoc
pprInstr (COMMENT FastString
s)
   = SDoc -> SDoc
asmComment (FastString -> SDoc
ftext FastString
s)

pprInstr (LOCATION Int
file Int
line Int
col String
_name)
   = String -> SDoc
text String
"\t.loc " SDoc -> SDoc -> SDoc
<> Int -> SDoc
forall a. Outputable a => a -> SDoc
ppr Int
file SDoc -> SDoc -> SDoc
<+> Int -> SDoc
forall a. Outputable a => a -> SDoc
ppr Int
line SDoc -> SDoc -> SDoc
<+> Int -> SDoc
forall a. Outputable a => a -> SDoc
ppr Int
col

pprInstr (DELTA Int
d)
   = SDoc -> SDoc
asmComment (SDoc -> SDoc) -> SDoc -> SDoc
forall a b. (a -> b) -> a -> b
$ String -> SDoc
text (String
"\tdelta = " String -> String -> String
forall a. [a] -> [a] -> [a]
++ Int -> String
forall a. Show a => a -> String
show Int
d)

pprInstr (NEWBLOCK BlockId
_)
   = String -> SDoc
forall a. String -> a
panic String
"PprMach.pprInstr: NEWBLOCK"

pprInstr (UNWIND CLabel
lbl UnwindTable
d)
   = SDoc -> SDoc
asmComment (String -> SDoc
text String
"\tunwind = " SDoc -> SDoc -> SDoc
<> UnwindTable -> SDoc
forall a. Outputable a => a -> SDoc
ppr UnwindTable
d)
     SDoc -> SDoc -> SDoc
$$ CLabel -> SDoc
forall a. Outputable a => a -> SDoc
ppr CLabel
lbl SDoc -> SDoc -> SDoc
<> SDoc
colon

pprInstr (LDATA Section
_ (Alignment, CmmStatics)
_)
   = String -> SDoc
forall a. String -> a
panic String
"PprMach.pprInstr: LDATA"

{-
pprInstr (SPILL reg slot)
   = hcat [
        text "\tSPILL",
        char ' ',
        pprUserReg reg,
        comma,
        text "SLOT" <> parens (int slot)]

pprInstr (RELOAD slot reg)
   = hcat [
        text "\tRELOAD",
        char ' ',
        text "SLOT" <> parens (int slot),
        comma,
        pprUserReg reg]
-}

-- Replace 'mov $0x0,%reg' by 'xor %reg,%reg', which is smaller and cheaper.
-- The code generator catches most of these already, but not all.
pprInstr (MOV Format
format (OpImm (ImmInt Int
0)) dst :: Operand
dst@(OpReg Reg
_))
  = Instr -> SDoc
pprInstr (Format -> Operand -> Operand -> Instr
XOR Format
format' Operand
dst Operand
dst)
  where format' :: Format
format' = case Format
format of
          Format
II64 -> Format
II32          -- 32-bit version is equivalent, and smaller
          Format
_    -> Format
format
pprInstr (MOV Format
format Operand
src Operand
dst)
  = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"mov") Format
format Operand
src Operand
dst

pprInstr (CMOV Cond
cc Format
format Operand
src Reg
dst)
  = PtrString -> Format -> Cond -> Operand -> Reg -> SDoc
pprCondOpReg (String -> PtrString
sLit String
"cmov") Format
format Cond
cc Operand
src Reg
dst

pprInstr (MOVZxL Format
II32 Operand
src Operand
dst) = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"mov") Format
II32 Operand
src Operand
dst
        -- 32-to-64 bit zero extension on x86_64 is accomplished by a simple
        -- movl.  But we represent it as a MOVZxL instruction, because
        -- the reg alloc would tend to throw away a plain reg-to-reg
        -- move, and we still want it to do that.

pprInstr (MOVZxL Format
formats Operand
src Operand
dst)
  = PtrString -> Format -> Format -> Operand -> Operand -> SDoc
pprFormatOpOpCoerce (String -> PtrString
sLit String
"movz") Format
formats Format
II32 Operand
src Operand
dst
        -- zero-extension only needs to extend to 32 bits: on x86_64,
        -- the remaining zero-extension to 64 bits is automatic, and the 32-bit
        -- instruction is shorter.

pprInstr (MOVSxL Format
formats Operand
src Operand
dst)
  = (Platform -> SDoc) -> SDoc
sdocWithPlatform ((Platform -> SDoc) -> SDoc) -> (Platform -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \Platform
platform ->
    PtrString -> Format -> Format -> Operand -> Operand -> SDoc
pprFormatOpOpCoerce (String -> PtrString
sLit String
"movs") Format
formats (Bool -> Format
archWordFormat (Platform -> Bool
target32Bit Platform
platform)) Operand
src Operand
dst

-- here we do some patching, since the physical registers are only set late
-- in the code generation.
pprInstr (LEA Format
format (OpAddr (AddrBaseIndex (EABaseReg Reg
reg1) (EAIndex Reg
reg2 Int
1) (ImmInt Int
0))) dst :: Operand
dst@(OpReg Reg
reg3))
  | Reg
reg1 Reg -> Reg -> Bool
forall a. Eq a => a -> a -> Bool
== Reg
reg3
  = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"add") Format
format (Reg -> Operand
OpReg Reg
reg2) Operand
dst

pprInstr (LEA Format
format (OpAddr (AddrBaseIndex (EABaseReg Reg
reg1) (EAIndex Reg
reg2 Int
1) (ImmInt Int
0))) dst :: Operand
dst@(OpReg Reg
reg3))
  | Reg
reg2 Reg -> Reg -> Bool
forall a. Eq a => a -> a -> Bool
== Reg
reg3
  = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"add") Format
format (Reg -> Operand
OpReg Reg
reg1) Operand
dst

pprInstr (LEA Format
format (OpAddr (AddrBaseIndex (EABaseReg Reg
reg1) EAIndex
EAIndexNone Imm
displ)) dst :: Operand
dst@(OpReg Reg
reg3))
  | Reg
reg1 Reg -> Reg -> Bool
forall a. Eq a => a -> a -> Bool
== Reg
reg3
  = Instr -> SDoc
pprInstr (Format -> Operand -> Operand -> Instr
ADD Format
format (Imm -> Operand
OpImm Imm
displ) Operand
dst)

pprInstr (LEA Format
format Operand
src Operand
dst) = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"lea") Format
format Operand
src Operand
dst

pprInstr (ADD Format
format (OpImm (ImmInt (-1))) Operand
dst)
  = PtrString -> Format -> Operand -> SDoc
pprFormatOp (String -> PtrString
sLit String
"dec") Format
format Operand
dst
pprInstr (ADD Format
format (OpImm (ImmInt Int
1)) Operand
dst)
  = PtrString -> Format -> Operand -> SDoc
pprFormatOp (String -> PtrString
sLit String
"inc") Format
format Operand
dst
pprInstr (ADD Format
format Operand
src Operand
dst) = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"add") Format
format Operand
src Operand
dst
pprInstr (ADC Format
format Operand
src Operand
dst) = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"adc") Format
format Operand
src Operand
dst
pprInstr (SUB Format
format Operand
src Operand
dst) = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"sub") Format
format Operand
src Operand
dst
pprInstr (SBB Format
format Operand
src Operand
dst) = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"sbb") Format
format Operand
src Operand
dst
pprInstr (IMUL Format
format Operand
op1 Operand
op2) = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"imul") Format
format Operand
op1 Operand
op2

pprInstr (ADD_CC Format
format Operand
src Operand
dst)
  = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"add") Format
format Operand
src Operand
dst
pprInstr (SUB_CC Format
format Operand
src Operand
dst)
  = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"sub") Format
format Operand
src Operand
dst

{- A hack.  The Intel documentation says that "The two and three
   operand forms [of IMUL] may also be used with unsigned operands
   because the lower half of the product is the same regardless if
   (sic) the operands are signed or unsigned.  The CF and OF flags,
   however, cannot be used to determine if the upper half of the
   result is non-zero."  So there.
-}

-- Use a 32-bit instruction when possible as it saves a byte.
-- Notably, extracting the tag bits of a pointer has this form.
-- TODO: we could save a byte in a subsequent CMP instruction too,
-- but need something like a peephole pass for this
pprInstr (AND Format
II64 src :: Operand
src@(OpImm (ImmInteger Integer
mask)) Operand
dst)
  | Integer
0 Integer -> Integer -> Bool
forall a. Ord a => a -> a -> Bool
<= Integer
mask Bool -> Bool -> Bool
&& Integer
mask Integer -> Integer -> Bool
forall a. Ord a => a -> a -> Bool
< Integer
0xffffffff
    = Instr -> SDoc
pprInstr (Format -> Operand -> Operand -> Instr
AND Format
II32 Operand
src Operand
dst)
pprInstr (AND Format
FF32 Operand
src Operand
dst) = PtrString -> Format -> Operand -> Operand -> SDoc
pprOpOp (String -> PtrString
sLit String
"andps") Format
FF32 Operand
src Operand
dst
pprInstr (AND Format
FF64 Operand
src Operand
dst) = PtrString -> Format -> Operand -> Operand -> SDoc
pprOpOp (String -> PtrString
sLit String
"andpd") Format
FF64 Operand
src Operand
dst
pprInstr (AND Format
format Operand
src Operand
dst) = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"and") Format
format Operand
src Operand
dst
pprInstr (OR  Format
format Operand
src Operand
dst) = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"or")  Format
format Operand
src Operand
dst

pprInstr (XOR Format
FF32 Operand
src Operand
dst) = PtrString -> Format -> Operand -> Operand -> SDoc
pprOpOp (String -> PtrString
sLit String
"xorps") Format
FF32 Operand
src Operand
dst
pprInstr (XOR Format
FF64 Operand
src Operand
dst) = PtrString -> Format -> Operand -> Operand -> SDoc
pprOpOp (String -> PtrString
sLit String
"xorpd") Format
FF64 Operand
src Operand
dst
pprInstr (XOR Format
format Operand
src Operand
dst) = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"xor")  Format
format Operand
src Operand
dst

pprInstr (POPCNT Format
format Operand
src Reg
dst) = PtrString -> Format -> Operand -> Operand -> SDoc
pprOpOp (String -> PtrString
sLit String
"popcnt") Format
format Operand
src (Reg -> Operand
OpReg Reg
dst)
pprInstr (LZCNT Format
format Operand
src Reg
dst)  = PtrString -> Format -> Operand -> Operand -> SDoc
pprOpOp (String -> PtrString
sLit String
"lzcnt")  Format
format Operand
src (Reg -> Operand
OpReg Reg
dst)
pprInstr (TZCNT Format
format Operand
src Reg
dst)  = PtrString -> Format -> Operand -> Operand -> SDoc
pprOpOp (String -> PtrString
sLit String
"tzcnt")  Format
format Operand
src (Reg -> Operand
OpReg Reg
dst)
pprInstr (BSF Format
format Operand
src Reg
dst)    = PtrString -> Format -> Operand -> Operand -> SDoc
pprOpOp (String -> PtrString
sLit String
"bsf")    Format
format Operand
src (Reg -> Operand
OpReg Reg
dst)
pprInstr (BSR Format
format Operand
src Reg
dst)    = PtrString -> Format -> Operand -> Operand -> SDoc
pprOpOp (String -> PtrString
sLit String
"bsr")    Format
format Operand
src (Reg -> Operand
OpReg Reg
dst)

pprInstr (PDEP Format
format Operand
src Operand
mask Reg
dst)   = PtrString -> Format -> Operand -> Operand -> Reg -> SDoc
pprFormatOpOpReg (String -> PtrString
sLit String
"pdep") Format
format Operand
src Operand
mask Reg
dst
pprInstr (PEXT Format
format Operand
src Operand
mask Reg
dst)   = PtrString -> Format -> Operand -> Operand -> Reg -> SDoc
pprFormatOpOpReg (String -> PtrString
sLit String
"pext") Format
format Operand
src Operand
mask Reg
dst

pprInstr (PREFETCH PrefetchVariant
NTA Format
format Operand
src ) = PtrString -> Format -> Operand -> SDoc
pprFormatOp_ (String -> PtrString
sLit String
"prefetchnta") Format
format Operand
src
pprInstr (PREFETCH PrefetchVariant
Lvl0 Format
format Operand
src) = PtrString -> Format -> Operand -> SDoc
pprFormatOp_ (String -> PtrString
sLit String
"prefetcht0") Format
format Operand
src
pprInstr (PREFETCH PrefetchVariant
Lvl1 Format
format Operand
src) = PtrString -> Format -> Operand -> SDoc
pprFormatOp_ (String -> PtrString
sLit String
"prefetcht1") Format
format Operand
src
pprInstr (PREFETCH PrefetchVariant
Lvl2 Format
format Operand
src) = PtrString -> Format -> Operand -> SDoc
pprFormatOp_ (String -> PtrString
sLit String
"prefetcht2") Format
format Operand
src

pprInstr (NOT Format
format Operand
op) = PtrString -> Format -> Operand -> SDoc
pprFormatOp (String -> PtrString
sLit String
"not") Format
format Operand
op
pprInstr (BSWAP Format
format Reg
op) = PtrString -> Format -> Operand -> SDoc
pprFormatOp (String -> PtrString
sLit String
"bswap") Format
format (Reg -> Operand
OpReg Reg
op)
pprInstr (NEGI Format
format Operand
op) = PtrString -> Format -> Operand -> SDoc
pprFormatOp (String -> PtrString
sLit String
"neg") Format
format Operand
op

pprInstr (SHL Format
format Operand
src Operand
dst) = PtrString -> Format -> Operand -> Operand -> SDoc
pprShift (String -> PtrString
sLit String
"shl") Format
format Operand
src Operand
dst
pprInstr (SAR Format
format Operand
src Operand
dst) = PtrString -> Format -> Operand -> Operand -> SDoc
pprShift (String -> PtrString
sLit String
"sar") Format
format Operand
src Operand
dst
pprInstr (SHR Format
format Operand
src Operand
dst) = PtrString -> Format -> Operand -> Operand -> SDoc
pprShift (String -> PtrString
sLit String
"shr") Format
format Operand
src Operand
dst

pprInstr (BT  Format
format Imm
imm Operand
src) = PtrString -> Format -> Imm -> Operand -> SDoc
pprFormatImmOp (String -> PtrString
sLit String
"bt") Format
format Imm
imm Operand
src

pprInstr (CMP Format
format Operand
src Operand
dst)
  | Format -> Bool
isFloatFormat Format
format =  PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"ucomi") Format
format Operand
src Operand
dst -- SSE2
  | Bool
otherwise     =  PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"cmp")   Format
format Operand
src Operand
dst

pprInstr (TEST Format
format Operand
src Operand
dst) = (Platform -> SDoc) -> SDoc
sdocWithPlatform ((Platform -> SDoc) -> SDoc) -> (Platform -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \Platform
platform ->
  let format' :: Format
format' = case (Operand
src,Operand
dst) of
        -- Match instructions like 'test $0x3,%esi' or 'test $0x7,%rbx'.
        -- We can replace them by equivalent, but smaller instructions
        -- by reducing the size of the immediate operand as far as possible.
        -- (We could handle masks larger than a single byte too,
        -- but it would complicate the code considerably
        -- and tag checks are by far the most common case.)
        -- The mask must have the high bit clear for this smaller encoding
        -- to be completely equivalent to the original; in particular so
        -- that the signed comparison condition bits are the same as they
        -- would be if doing a full word comparison. See #13425.
        (OpImm (ImmInteger Integer
mask), OpReg Reg
dstReg)
          | Integer
0 Integer -> Integer -> Bool
forall a. Ord a => a -> a -> Bool
<= Integer
mask Bool -> Bool -> Bool
&& Integer
mask Integer -> Integer -> Bool
forall a. Ord a => a -> a -> Bool
< Integer
128 -> Platform -> Reg -> Format
minSizeOfReg Platform
platform Reg
dstReg
        (Operand, Operand)
_ -> Format
format
  in PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"test") Format
format' Operand
src Operand
dst
  where
    minSizeOfReg :: Platform -> Reg -> Format
minSizeOfReg Platform
platform (RegReal (RealRegSingle Int
i))
      | Platform -> Bool
target32Bit Platform
platform Bool -> Bool -> Bool
&& Int
i Int -> Int -> Bool
forall a. Ord a => a -> a -> Bool
<= Int
3        = Format
II8  -- al, bl, cl, dl
      | Platform -> Bool
target32Bit Platform
platform Bool -> Bool -> Bool
&& Int
i Int -> Int -> Bool
forall a. Ord a => a -> a -> Bool
<= Int
7        = Format
II16 -- si, di, bp, sp
      | Bool -> Bool
not (Platform -> Bool
target32Bit Platform
platform) Bool -> Bool -> Bool
&& Int
i Int -> Int -> Bool
forall a. Ord a => a -> a -> Bool
<= Int
15 = Format
II8  -- al .. r15b
    minSizeOfReg Platform
_ Reg
_ = Format
format                 -- other

pprInstr (PUSH Format
format Operand
op) = PtrString -> Format -> Operand -> SDoc
pprFormatOp (String -> PtrString
sLit String
"push") Format
format Operand
op
pprInstr (POP Format
format Operand
op) = PtrString -> Format -> Operand -> SDoc
pprFormatOp (String -> PtrString
sLit String
"pop") Format
format Operand
op

-- both unused (SDM):
-- pprInstr PUSHA = text "\tpushal"
-- pprInstr POPA = text "\tpopal"

pprInstr Instr
NOP = String -> SDoc
text String
"\tnop"
pprInstr (CLTD Format
II8) = String -> SDoc
text String
"\tcbtw"
pprInstr (CLTD Format
II16) = String -> SDoc
text String
"\tcwtd"
pprInstr (CLTD Format
II32) = String -> SDoc
text String
"\tcltd"
pprInstr (CLTD Format
II64) = String -> SDoc
text String
"\tcqto"
pprInstr (CLTD Format
x) = String -> SDoc
forall a. String -> a
panic (String -> SDoc) -> String -> SDoc
forall a b. (a -> b) -> a -> b
$ String
"pprInstr: " String -> String -> String
forall a. [a] -> [a] -> [a]
++ Format -> String
forall a. Show a => a -> String
show Format
x

pprInstr (SETCC Cond
cond Operand
op) = PtrString -> Cond -> SDoc -> SDoc
pprCondInstr (String -> PtrString
sLit String
"set") Cond
cond (Format -> Operand -> SDoc
pprOperand Format
II8 Operand
op)

pprInstr (JXX Cond
cond BlockId
blockid)
  = PtrString -> Cond -> SDoc -> SDoc
pprCondInstr (String -> PtrString
sLit String
"j") Cond
cond (CLabel -> SDoc
forall a. Outputable a => a -> SDoc
ppr CLabel
lab)
  where lab :: CLabel
lab = BlockId -> CLabel
blockLbl BlockId
blockid

pprInstr        (JXX_GBL Cond
cond Imm
imm) = PtrString -> Cond -> SDoc -> SDoc
pprCondInstr (String -> PtrString
sLit String
"j") Cond
cond (Imm -> SDoc
pprImm Imm
imm)

pprInstr        (JMP (OpImm Imm
imm) [Reg]
_) = String -> SDoc
text String
"\tjmp " SDoc -> SDoc -> SDoc
<> Imm -> SDoc
pprImm Imm
imm
pprInstr (JMP Operand
op [Reg]
_)          = (Platform -> SDoc) -> SDoc
sdocWithPlatform ((Platform -> SDoc) -> SDoc) -> (Platform -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \Platform
platform ->
                               String -> SDoc
text String
"\tjmp *"
                                   SDoc -> SDoc -> SDoc
<> Format -> Operand -> SDoc
pprOperand (Bool -> Format
archWordFormat (Platform -> Bool
target32Bit Platform
platform)) Operand
op
pprInstr (JMP_TBL Operand
op [Maybe JumpDest]
_ Section
_ CLabel
_)  = Instr -> SDoc
pprInstr (Operand -> [Reg] -> Instr
JMP Operand
op [])
pprInstr        (CALL (Left Imm
imm) [Reg]
_)    = String -> SDoc
text String
"\tcall " SDoc -> SDoc -> SDoc
<> Imm -> SDoc
pprImm Imm
imm
pprInstr (CALL (Right Reg
reg) [Reg]
_)   = (Platform -> SDoc) -> SDoc
sdocWithPlatform ((Platform -> SDoc) -> SDoc) -> (Platform -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \Platform
platform ->
                                  String -> SDoc
text String
"\tcall *"
                                      SDoc -> SDoc -> SDoc
<> Format -> Reg -> SDoc
pprReg (Bool -> Format
archWordFormat (Platform -> Bool
target32Bit Platform
platform)) Reg
reg

pprInstr (IDIV Format
fmt Operand
op)   = PtrString -> Format -> Operand -> SDoc
pprFormatOp (String -> PtrString
sLit String
"idiv") Format
fmt Operand
op
pprInstr (DIV Format
fmt Operand
op)    = PtrString -> Format -> Operand -> SDoc
pprFormatOp (String -> PtrString
sLit String
"div")  Format
fmt Operand
op
pprInstr (IMUL2 Format
fmt Operand
op)  = PtrString -> Format -> Operand -> SDoc
pprFormatOp (String -> PtrString
sLit String
"imul") Format
fmt Operand
op

-- x86_64 only
pprInstr (MUL Format
format Operand
op1 Operand
op2) = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"mul") Format
format Operand
op1 Operand
op2
pprInstr (MUL2 Format
format Operand
op) = PtrString -> Format -> Operand -> SDoc
pprFormatOp (String -> PtrString
sLit String
"mul") Format
format Operand
op

pprInstr (FDIV Format
format Operand
op1 Operand
op2) = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"div") Format
format Operand
op1 Operand
op2
pprInstr (SQRT Format
format Operand
op1 Reg
op2) = PtrString -> Format -> Operand -> Reg -> SDoc
pprFormatOpReg (String -> PtrString
sLit String
"sqrt") Format
format Operand
op1 Reg
op2

pprInstr (CVTSS2SD Reg
from Reg
to)      = PtrString -> Reg -> Reg -> SDoc
pprRegReg (String -> PtrString
sLit String
"cvtss2sd") Reg
from Reg
to
pprInstr (CVTSD2SS Reg
from Reg
to)      = PtrString -> Reg -> Reg -> SDoc
pprRegReg (String -> PtrString
sLit String
"cvtsd2ss") Reg
from Reg
to
pprInstr (CVTTSS2SIQ Format
fmt Operand
from Reg
to) = PtrString -> Format -> Format -> Operand -> Reg -> SDoc
pprFormatFormatOpReg (String -> PtrString
sLit String
"cvttss2si") Format
FF32 Format
fmt Operand
from Reg
to
pprInstr (CVTTSD2SIQ Format
fmt Operand
from Reg
to) = PtrString -> Format -> Format -> Operand -> Reg -> SDoc
pprFormatFormatOpReg (String -> PtrString
sLit String
"cvttsd2si") Format
FF64 Format
fmt Operand
from Reg
to
pprInstr (CVTSI2SS Format
fmt Operand
from Reg
to)   = PtrString -> Format -> Operand -> Reg -> SDoc
pprFormatOpReg (String -> PtrString
sLit String
"cvtsi2ss") Format
fmt Operand
from Reg
to
pprInstr (CVTSI2SD Format
fmt Operand
from Reg
to)   = PtrString -> Format -> Operand -> Reg -> SDoc
pprFormatOpReg (String -> PtrString
sLit String
"cvtsi2sd") Format
fmt Operand
from Reg
to

    -- FETCHGOT for PIC on ELF platforms
pprInstr (FETCHGOT Reg
reg)
   = [SDoc] -> SDoc
vcat [ String -> SDoc
text String
"\tcall 1f",
            [SDoc] -> SDoc
hcat [ String -> SDoc
text String
"1:\tpopl\t", Format -> Reg -> SDoc
pprReg Format
II32 Reg
reg ],
            [SDoc] -> SDoc
hcat [ String -> SDoc
text String
"\taddl\t$_GLOBAL_OFFSET_TABLE_+(.-1b), ",
                   Format -> Reg -> SDoc
pprReg Format
II32 Reg
reg ]
          ]

    -- FETCHPC for PIC on Darwin/x86
    -- get the instruction pointer into a register
    -- (Terminology note: the IP is called Program Counter on PPC,
    --  and it's a good thing to use the same name on both platforms)
pprInstr (FETCHPC Reg
reg)
   = [SDoc] -> SDoc
vcat [ String -> SDoc
text String
"\tcall 1f",
            [SDoc] -> SDoc
hcat [ String -> SDoc
text String
"1:\tpopl\t", Format -> Reg -> SDoc
pprReg Format
II32 Reg
reg ]
          ]


-- the
-- GST fmt src addr ==> FLD dst ; FSTPsz addr
pprInstr g :: Instr
g@(X87Store Format
fmt  AddrMode
addr)
 = Instr -> SDoc -> SDoc
pprX87 Instr
g ([SDoc] -> SDoc
hcat [SDoc
gtab,
                 String -> SDoc
text String
"fstp", Format -> SDoc
pprFormat_x87 Format
fmt, SDoc
gsp, AddrMode -> SDoc
pprAddr AddrMode
addr])


-- Atomics

pprInstr (LOCK Instr
i) = String -> SDoc
text String
"\tlock" SDoc -> SDoc -> SDoc
$$ Instr -> SDoc
pprInstr Instr
i

pprInstr Instr
MFENCE = String -> SDoc
text String
"\tmfence"

pprInstr (XADD Format
format Operand
src Operand
dst) = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"xadd") Format
format Operand
src Operand
dst

pprInstr (CMPXCHG Format
format Operand
src Operand
dst)
   = PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp (String -> PtrString
sLit String
"cmpxchg") Format
format Operand
src Operand
dst



--------------------------
-- some left over



gtab :: SDoc
gtab :: SDoc
gtab  = Char -> SDoc
char Char
'\t'

gsp :: SDoc
gsp :: SDoc
gsp   = Char -> SDoc
char Char
' '



pprX87 :: Instr -> SDoc -> SDoc
pprX87 :: Instr -> SDoc -> SDoc
pprX87 Instr
fake SDoc
actual
   = (Char -> SDoc
char Char
'#' SDoc -> SDoc -> SDoc
<> Instr -> SDoc
pprX87Instr Instr
fake) SDoc -> SDoc -> SDoc
$$ SDoc
actual

pprX87Instr :: Instr -> SDoc
pprX87Instr :: Instr -> SDoc
pprX87Instr (X87Store Format
fmt  AddrMode
dst) = PtrString -> Format -> AddrMode -> SDoc
pprFormatAddr (String -> PtrString
sLit String
"gst") Format
fmt  AddrMode
dst
pprX87Instr Instr
_ = String -> SDoc
forall a. String -> a
panic String
"X86.Ppr.pprX87Instr: no match"

pprDollImm :: Imm -> SDoc
pprDollImm :: Imm -> SDoc
pprDollImm Imm
i = String -> SDoc
text String
"$" SDoc -> SDoc -> SDoc
<> Imm -> SDoc
pprImm Imm
i


pprOperand :: Format -> Operand -> SDoc
pprOperand :: Format -> Operand -> SDoc
pprOperand Format
f (OpReg Reg
r)   = Format -> Reg -> SDoc
pprReg Format
f Reg
r
pprOperand Format
_ (OpImm Imm
i)   = Imm -> SDoc
pprDollImm Imm
i
pprOperand Format
_ (OpAddr AddrMode
ea) = AddrMode -> SDoc
pprAddr AddrMode
ea


pprMnemonic_  :: PtrString -> SDoc
pprMnemonic_ :: PtrString -> SDoc
pprMnemonic_ PtrString
name =
   Char -> SDoc
char Char
'\t' SDoc -> SDoc -> SDoc
<> PtrString -> SDoc
ptext PtrString
name SDoc -> SDoc -> SDoc
<> SDoc
space


pprMnemonic  :: PtrString -> Format -> SDoc
pprMnemonic :: PtrString -> Format -> SDoc
pprMnemonic PtrString
name Format
format =
   Char -> SDoc
char Char
'\t' SDoc -> SDoc -> SDoc
<> PtrString -> SDoc
ptext PtrString
name SDoc -> SDoc -> SDoc
<> Format -> SDoc
pprFormat Format
format SDoc -> SDoc -> SDoc
<> SDoc
space


pprFormatImmOp :: PtrString -> Format -> Imm -> Operand -> SDoc
pprFormatImmOp :: PtrString -> Format -> Imm -> Operand -> SDoc
pprFormatImmOp PtrString
name Format
format Imm
imm Operand
op1
  = [SDoc] -> SDoc
hcat [
        PtrString -> Format -> SDoc
pprMnemonic PtrString
name Format
format,
        Char -> SDoc
char Char
'$',
        Imm -> SDoc
pprImm Imm
imm,
        SDoc
comma,
        Format -> Operand -> SDoc
pprOperand Format
format Operand
op1
    ]


pprFormatOp_ :: PtrString -> Format -> Operand -> SDoc
pprFormatOp_ :: PtrString -> Format -> Operand -> SDoc
pprFormatOp_ PtrString
name Format
format Operand
op1
  = [SDoc] -> SDoc
hcat [
        PtrString -> SDoc
pprMnemonic_ PtrString
name ,
        Format -> Operand -> SDoc
pprOperand Format
format Operand
op1
    ]

pprFormatOp :: PtrString -> Format -> Operand -> SDoc
pprFormatOp :: PtrString -> Format -> Operand -> SDoc
pprFormatOp PtrString
name Format
format Operand
op1
  = [SDoc] -> SDoc
hcat [
        PtrString -> Format -> SDoc
pprMnemonic PtrString
name Format
format,
        Format -> Operand -> SDoc
pprOperand Format
format Operand
op1
    ]


pprFormatOpOp :: PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp :: PtrString -> Format -> Operand -> Operand -> SDoc
pprFormatOpOp PtrString
name Format
format Operand
op1 Operand
op2
  = [SDoc] -> SDoc
hcat [
        PtrString -> Format -> SDoc
pprMnemonic PtrString
name Format
format,
        Format -> Operand -> SDoc
pprOperand Format
format Operand
op1,
        SDoc
comma,
        Format -> Operand -> SDoc
pprOperand Format
format Operand
op2
    ]


pprOpOp :: PtrString -> Format -> Operand -> Operand -> SDoc
pprOpOp :: PtrString -> Format -> Operand -> Operand -> SDoc
pprOpOp PtrString
name Format
format Operand
op1 Operand
op2
  = [SDoc] -> SDoc
hcat [
        PtrString -> SDoc
pprMnemonic_ PtrString
name,
        Format -> Operand -> SDoc
pprOperand Format
format Operand
op1,
        SDoc
comma,
        Format -> Operand -> SDoc
pprOperand Format
format Operand
op2
    ]



pprRegReg :: PtrString -> Reg -> Reg -> SDoc
pprRegReg :: PtrString -> Reg -> Reg -> SDoc
pprRegReg PtrString
name Reg
reg1 Reg
reg2
  = (Platform -> SDoc) -> SDoc
sdocWithPlatform ((Platform -> SDoc) -> SDoc) -> (Platform -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \Platform
platform ->
    [SDoc] -> SDoc
hcat [
        PtrString -> SDoc
pprMnemonic_ PtrString
name,
        Format -> Reg -> SDoc
pprReg (Bool -> Format
archWordFormat (Platform -> Bool
target32Bit Platform
platform)) Reg
reg1,
        SDoc
comma,
        Format -> Reg -> SDoc
pprReg (Bool -> Format
archWordFormat (Platform -> Bool
target32Bit Platform
platform)) Reg
reg2
    ]


pprFormatOpReg :: PtrString -> Format -> Operand -> Reg -> SDoc
pprFormatOpReg :: PtrString -> Format -> Operand -> Reg -> SDoc
pprFormatOpReg PtrString
name Format
format Operand
op1 Reg
reg2
  = (Platform -> SDoc) -> SDoc
sdocWithPlatform ((Platform -> SDoc) -> SDoc) -> (Platform -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \Platform
platform ->
    [SDoc] -> SDoc
hcat [
        PtrString -> Format -> SDoc
pprMnemonic PtrString
name Format
format,
        Format -> Operand -> SDoc
pprOperand Format
format Operand
op1,
        SDoc
comma,
        Format -> Reg -> SDoc
pprReg (Bool -> Format
archWordFormat (Platform -> Bool
target32Bit Platform
platform)) Reg
reg2
    ]

pprCondOpReg :: PtrString -> Format -> Cond -> Operand -> Reg -> SDoc
pprCondOpReg :: PtrString -> Format -> Cond -> Operand -> Reg -> SDoc
pprCondOpReg PtrString
name Format
format Cond
cond Operand
op1 Reg
reg2
  = [SDoc] -> SDoc
hcat [
        Char -> SDoc
char Char
'\t',
        PtrString -> SDoc
ptext PtrString
name,
        Cond -> SDoc
pprCond Cond
cond,
        SDoc
space,
        Format -> Operand -> SDoc
pprOperand Format
format Operand
op1,
        SDoc
comma,
        Format -> Reg -> SDoc
pprReg Format
format Reg
reg2
    ]

pprFormatFormatOpReg :: PtrString -> Format -> Format -> Operand -> Reg -> SDoc
pprFormatFormatOpReg :: PtrString -> Format -> Format -> Operand -> Reg -> SDoc
pprFormatFormatOpReg PtrString
name Format
format1 Format
format2 Operand
op1 Reg
reg2
  = [SDoc] -> SDoc
hcat [
        PtrString -> Format -> SDoc
pprMnemonic PtrString
name Format
format2,
        Format -> Operand -> SDoc
pprOperand Format
format1 Operand
op1,
        SDoc
comma,
        Format -> Reg -> SDoc
pprReg Format
format2 Reg
reg2
    ]

pprFormatOpOpReg :: PtrString -> Format -> Operand -> Operand -> Reg -> SDoc
pprFormatOpOpReg :: PtrString -> Format -> Operand -> Operand -> Reg -> SDoc
pprFormatOpOpReg PtrString
name Format
format Operand
op1 Operand
op2 Reg
reg3
  = [SDoc] -> SDoc
hcat [
        PtrString -> Format -> SDoc
pprMnemonic PtrString
name Format
format,
        Format -> Operand -> SDoc
pprOperand Format
format Operand
op1,
        SDoc
comma,
        Format -> Operand -> SDoc
pprOperand Format
format Operand
op2,
        SDoc
comma,
        Format -> Reg -> SDoc
pprReg Format
format Reg
reg3
    ]



pprFormatAddr :: PtrString -> Format -> AddrMode -> SDoc
pprFormatAddr :: PtrString -> Format -> AddrMode -> SDoc
pprFormatAddr PtrString
name Format
format  AddrMode
op
  = [SDoc] -> SDoc
hcat [
        PtrString -> Format -> SDoc
pprMnemonic PtrString
name Format
format,
        SDoc
comma,
        AddrMode -> SDoc
pprAddr AddrMode
op
    ]

pprShift :: PtrString -> Format -> Operand -> Operand -> SDoc
pprShift :: PtrString -> Format -> Operand -> Operand -> SDoc
pprShift PtrString
name Format
format Operand
src Operand
dest
  = [SDoc] -> SDoc
hcat [
        PtrString -> Format -> SDoc
pprMnemonic PtrString
name Format
format,
        Format -> Operand -> SDoc
pprOperand Format
II8 Operand
src,  -- src is 8-bit sized
        SDoc
comma,
        Format -> Operand -> SDoc
pprOperand Format
format Operand
dest
    ]


pprFormatOpOpCoerce :: PtrString -> Format -> Format -> Operand -> Operand -> SDoc
pprFormatOpOpCoerce :: PtrString -> Format -> Format -> Operand -> Operand -> SDoc
pprFormatOpOpCoerce PtrString
name Format
format1 Format
format2 Operand
op1 Operand
op2
  = [SDoc] -> SDoc
hcat [ Char -> SDoc
char Char
'\t', PtrString -> SDoc
ptext PtrString
name, Format -> SDoc
pprFormat Format
format1, Format -> SDoc
pprFormat Format
format2, SDoc
space,
        Format -> Operand -> SDoc
pprOperand Format
format1 Operand
op1,
        SDoc
comma,
        Format -> Operand -> SDoc
pprOperand Format
format2 Operand
op2
    ]


pprCondInstr :: PtrString -> Cond -> SDoc -> SDoc
pprCondInstr :: PtrString -> Cond -> SDoc -> SDoc
pprCondInstr PtrString
name Cond
cond SDoc
arg
  = [SDoc] -> SDoc
hcat [ Char -> SDoc
char Char
'\t', PtrString -> SDoc
ptext PtrString
name, Cond -> SDoc
pprCond Cond
cond, SDoc
space, SDoc
arg]