-----------------------------------------------------------------------------
{
+{-# OPTIONS -Wwarn -w #-}
+-- The above -Wwarn supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+-- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
+-- for details
+
module CmmLex (
CmmToken(..), cmmlex,
) where
-#include "HsVersions.h"
-
import Cmm
import Lexer
-- single-line line pragmas, of the form
-- # <line> "<file>" <extra-stuff> \n
<line_prag> $digit+ { setLine line_prag1 }
-<line_prag1> \" ($printable # \")* \" { setFile line_prag2 }
+<line_prag1> \" [^\"]* \" { setFile line_prag2 }
<line_prag2> .* { pop }
<0> {
"&&" { kw CmmT_BoolAnd }
"||" { kw CmmT_BoolOr }
- R@decimal { global_regN VanillaReg }
+ P@decimal { global_regN (\n -> VanillaReg n VGcPtr) }
+ R@decimal { global_regN (\n -> VanillaReg n VNonGcPtr) }
F@decimal { global_regN FloatReg }
D@decimal { global_regN DoubleReg }
L@decimal { global_regN LongReg }
| CmmT_if
| CmmT_jump
| CmmT_foreign
+ | CmmT_never
| CmmT_prim
| CmmT_return
+ | CmmT_returns
| CmmT_import
| CmmT_switch
| CmmT_case
| CmmT_bits64
| CmmT_float32
| CmmT_float64
+ | CmmT_gcptr
| CmmT_GlobalReg GlobalReg
| CmmT_Name FastString
| CmmT_String String
( "if", CmmT_if ),
( "jump", CmmT_jump ),
( "foreign", CmmT_foreign ),
+ ( "never", CmmT_never ),
( "prim", CmmT_prim ),
( "return", CmmT_return ),
+ ( "returns", CmmT_returns ),
( "import", CmmT_import ),
( "switch", CmmT_switch ),
( "case", CmmT_case ),
( "bits32", CmmT_bits32 ),
( "bits64", CmmT_bits64 ),
( "float32", CmmT_float32 ),
- ( "float64", CmmT_float64 )
+ ( "float64", CmmT_float64 ),
+-- New forms
+ ( "b8", CmmT_bits8 ),
+ ( "b16", CmmT_bits16 ),
+ ( "b32", CmmT_bits32 ),
+ ( "b64", CmmT_bits64 ),
+ ( "f32", CmmT_float32 ),
+ ( "f64", CmmT_float64 ),
+ ( "gcptr", CmmT_gcptr )
]
tok_decimal span buf len
setLine :: Int -> Action
setLine code span buf len = do
let line = parseUnsignedInteger buf len 10 octDecDigit
- setSrcLoc (mkSrcLoc (srcSpanFile span) (fromIntegral line - 1) 0)
+ setSrcLoc (mkSrcLoc (srcSpanFile span) (fromIntegral line - 1) 1)
-- subtract one: the line number refers to the *following* line
-- trace ("setLine " ++ show line) $ do
popLexState
sc <- getLexState
case alexScan inp sc of
AlexEOF -> do let span = mkSrcSpan loc1 loc1
- setLastToken span 0 0
+ setLastToken span 0
return (L span CmmT_EOF)
AlexError (loc2,_) -> do failLocMsgP loc1 loc2 "lexical error"
AlexSkip inp2 _ -> do
AlexToken inp2@(end,buf2) len t -> do
setInput inp2
let span = mkSrcSpan loc1 end
- span `seq` setLastToken span len len
+ span `seq` setLastToken span len
t span buf len
-- -----------------------------------------------------------------------------