@@ -9,7 +9,7 @@ Maintainer : The Idris Community.
99
1010module IRTS.CodegenC (codegenC) where
1111
12−import Idris.AbsSyntax hiding (getBC)
12+import Idris.AbsSyntax
1313import Idris.Core.TT
1414import IRTS.Bytecode
1515import IRTS.CodegenCommon
@@ -21,12 +21,10 @@ import IRTS.System
2121import Util.System
2222
2323import Control.Monad
24−import Control.Monad
25−import Control.Monad.RWS
2624import Data.Bits
2725import Data.Char
28−import Data.List (find, intercalate, nubBy, partition)
29−import qualified Data.Text as T
26+import Data.List (intercalate, nubBy)
27+import Debug.Trace
3028import Numeric
3129import System.Directory
3230import System.Exit
@@ -34,8 +32,6 @@ import System.FilePath ((<.>), (</>))
3432import System.IO
3533import System.Process
3634
37−import Debug.Trace
38−
3935codegenC :: CodeGenerator
4036codegenC ci = do codegenC' (simpleDecls ci)
4137 (outputFile ci)
@@ -70,9 +66,7 @@ codegenC' defs out exec incs objs libs flags exports iface dbg
7066 let bc = map toBC defs
7167 let wrappers = genWrappers bc
7268 let h = concatMap toDecl (map fst bc)
73− let (state, cc) = execRWS (generateSrc bc) 0
74− (CS { fnName = Nothing,
75− level = 1 })
69+ let cc = concatMap (uncurry toC) bc
7670 let hi = concatMap ifaceC (concatMap getExp exports)
7771 d <- getIdrisCRTSDir
7872 mprog <- readFile (d </> "idris_main" <.> "c")
@@ -142,17 +136,12 @@ creg Tmp = "REG1"
142136toDecl :: Name -> String
143137toDecl f = "void " ++ cname f ++ "(VM*, VAL*);\n"
144138
145−generateSrc :: [(Name, [BC])] -> RWS Int String CState ()
146−generateSrc bc = mapM_ toC bc
147−
148−toC :: (Name, [BC]) -> RWS Int String CState ()
149−toC (f, code) = do
150− modify (\s -> s { fnName = Just f })
151− s <- get
152− tell $ "void " ++ cname f ++ "(VM* vm, VAL* oldbase) {\n"
153− tell $ indent (level s) ++ "INITFRAME;\n"
154− bcc code
155− tell $ "}\n\n"
139+toC :: Name -> [BC] -> String
140+toC f code
141+ = -- "/* " ++ show code ++ "*/\n\n" ++
142+ "void " ++ cname f ++ "(VM* vm, VAL* oldbase) {\n" ++
143+ indent 1 ++ "INITFRAME;\n" ++
144+ concatMap (bcc 1) code ++ "}\n\n"
156145
157146showCStr :: String -> String
158147showCStr s = '"' : foldr ((++) . showChar) "\"" s
@@ -188,27 +177,15 @@ showCStr s = '"' : foldr ((++) . showChar) "\"" s
188177 2 -> s
189178 _ -> error $ "Can't happen: String of invalid length " ++ show s
190179
191−data CState = CS {
192− fnName :: Maybe Name,
193− level :: Int
194−}
195−
196−
197−bcc :: [BC] -> RWS Int String CState ()
198−bcc [] = return ()
199−bcc ((ASSIGN l r):xs) = do
200− i <- get
201− tell $ indent (level i) ++ creg l ++ " = " ++ creg r ++ ";\n"
202− bcc xs
203−bcc ((ASSIGNCONST l c):xs) = do
204− i <- get
205− tell $ indent (level i) ++ creg l ++ " = " ++ mkConst c ++ ";\n"
206− bcc xs
180+bcc :: Int -> BC -> String
181+bcc i (ASSIGN l r) = indent i ++ creg l ++ " = " ++ creg r ++ ";\n"
182+bcc i (ASSIGNCONST l c)
183+ = indent i ++ creg l ++ " = " ++ mkConst c ++ ";\n"
207184 where
208185 mkConst (I i) = "MKINT(" ++ show i ++ ")"
209186 mkConst (BI i) | i < (2^30) = "MKINT(" ++ show i ++ ")"
210187 | otherwise = "MKBIGC(vm,\"" ++ show i ++ "\")"
211− mkConst (Fl f) = "MKFLOAT(vm, " ++ show f ++ ")"
188+ mkConst (Fl f) = "MKFLOAT(vm, " ++ (map toUpper $ show f) ++ ")"
212189 mkConst (Ch c) = "MKINT(" ++ show (fromEnum c) ++ ")"
213190 mkConst (Str s) = "MKSTR(vm, " ++ showCStr s ++ ")"
214191 mkConst (B8 x) = "idris_b8const(vm, " ++ show x ++ "U)"
@@ -221,21 +198,16 @@ bcc ((ASSIGNCONST l c):xs) = do
221198 mkConst c | isTypeConst c = "MKINT(42424242)"
222199 mkConst c = error $ "mkConst of (" ++ show c ++ ") not implemented"
223200
224−bcc ((UPDATE l r):xs) = do
225− i <- get
226− tell $ indent (level i) ++ creg l ++ " = " ++ creg r ++ ";\n"
227− bcc xs
228−bcc ((MKCON l loc tag []):xs) | tag < 256 = do
229− i <- get
230− tell $ indent (level i) ++ creg l ++ " = NULL_CON(" ++ show tag ++ ");\n"
231− bcc xs
232−bcc ((MKCON l loc tag args):xs) = do
233− i <- get
234− let tab = indent (level i)
235− tell $ tab ++ alloc loc tag ++
236− tab ++ setArgs 0 args ++ "\n" ++
237− tab ++ creg l ++ " = " ++ creg Tmp ++ ";\n"
238− bcc xs
201+bcc i (UPDATE l r) = indent i ++ creg l ++ " = " ++ creg r ++ ";\n"
202+bcc i (MKCON l loc tag []) | tag < 256
203+ = indent i ++ creg l ++ " = NULL_CON(" ++ show tag ++ ");\n"
204+bcc i (MKCON l loc tag args)
205+ = indent i ++ alloc loc tag ++
206+ indent i ++ setArgs 0 args ++ "\n" ++
207+ indent i ++ creg l ++ " = " ++ creg Tmp ++ ";\n"
208+
209+-- "MKCON(vm, " ++ creg l ++ ", " ++ show tag ++ ", " ++
210+-- show (length args) ++ concatMap showArg args ++ ");\n"
239211 where showArg r = ", " ++ creg r
240212 setArgs i [] = ""
241213 setArgs i (x : xs) = "SETARG(" ++ creg Tmp ++ ", " ++ show i ++ ", " ++ creg x ++
@@ -247,94 +219,52 @@ bcc ((MKCON l loc tag args):xs) = do
247219 = "updateCon(" ++ creg Tmp ++ ", " ++ creg old ++ ", " ++ show tag ++ ", " ++
248220 show (length args) ++ ");\n"
249221
250−bcc ((PROJECT l loc a):xs) = do
251− i <- get
252− tell $ indent (level i) ++ "PROJECT(vm, " ++ creg l ++ ", "
253− ++ show loc ++ ", " ++ show a ++ ");\n"
254− bcc xs
255−bcc ((PROJECTINTO r t idx):xs) = do
256− i <- get
257− tell $ indent (level i) ++ creg r ++ " = GETARG(" ++ creg t
258− ++ ", " ++ show idx ++ ");\n"
259− bcc xs
260−bcc ((CASE True r code def):xs)
261− | length code < 4 = do
262− showCases def code
263− bcc xs
222+bcc i (PROJECT l loc a) = indent i ++ "PROJECT(vm, " ++ creg l ++ ", " ++ show loc ++
223+ ", " ++ show a ++ ");\n"
224+bcc i (PROJECTINTO r t idx)
225+ = indent i ++ creg r ++ " = GETARG(" ++ creg t ++ ", " ++ show idx ++ ");\n"
226+bcc i (CASE True r code def)
227+ | length code < 4 = showCase i def code
264228 where
265− showCode bc = do
266− w <- getBC bc xs
267− i <- get
268− tell $ "{\n" ++ w ++ indent (level i) ++ "}\n"
269−
270− showCases Nothing [(t, c)] = do
271− i <- get
272− tell $ indent (level i)
273− showCode c
274− showCases (Just def) [] = do
275− i <- get
276− tell $ indent (level i)
277− showCode def
278− showCases def ((t, c) : cs) = do
279− i <- get
280− tell $ indent (level i) ++ "if (CTAG(" ++ creg r ++ ") == "
281− ++ show t ++ ") "
282− showCode c
283− tell $ indent (level i) ++ "else\n"
284− showCases def cs
285−
286−bcc ((CASE safe r code def):xs) = do
287− i <- get
288− tell $ indent (level i) ++ "switch(" ++ ctag safe ++ "(" ++ creg r ++ ")) {\n"
289− mapM showCase code
290− showDef def
291− tell $ indent (level i) ++ "}\n"
292− bcc xs
229+ showCode :: Int -> [BC] -> String
230+ showCode i bc = "{\n" ++ concatMap (bcc (i + 1)) bc ++
231+ indent i ++ "}\n"
232+
233+ showCase :: Int -> Maybe [BC] -> [(Int, [BC])] -> String
234+ showCase i Nothing [(t, c)] = indent i ++ showCode i c
235+ showCase i (Just def) [] = indent i ++ showCode i def
236+ showCase i def ((t, c) : cs)
237+ = indent i ++ "if (CTAG(" ++ creg r ++ ") == " ++ show t ++ ") " ++ showCode i c
238+ ++ indent i ++ "else\n" ++ showCase i def cs
239+
240+bcc i (CASE safe r code def)
241+ = indent i ++ "switch(" ++ ctag safe ++ "(" ++ creg r ++ ")) {\n" ++
242+ concatMap (showCase i) code ++
243+ showDef i def ++
244+ indent i ++ "}\n"
293245 where
294246 ctag True = "CTAG"
295247 ctag False = "TAG"
296248
297− showCase (t, bc) = do
298− w <- getBC bc xs
299− is <- get
300− let i = level is
301− tell $ indent i ++ "case " ++ show t ++ ":\n"
302− ++ w ++ indent (i + 1) ++ "break;\n"
303− showDef Nothing = return $ ()
304− showDef (Just c) = do
305− w <- getBC c xs
306− is <- get
307− let i = level is
308− tell $ indent i ++ "default:\n" ++ w ++ indent (i + 1) ++ "break;\n"
309−
310−bcc ((CONSTCASE r code def):xs)
249+ showCase i (t, bc) = indent i ++ "case " ++ show t ++ ":\n"
250+ ++ concatMap (bcc (i+1)) bc ++ indent (i + 1) ++ "break;\n"
251+ showDef i Nothing = ""
252+ showDef i (Just c) = indent i ++ "default:\n"
253+ ++ concatMap (bcc (i+1)) c ++ indent (i + 1) ++ "break;\n"
254+bcc i (CONSTCASE r code def)
311255 | intConsts code
312− = do
313− is <- get
314− let i = level is
315− codes <- mapM getCode code
316− defs <- showDefS def
317− tell $ concatMap (iCase i (creg r)) codes
318− tell $ indent i ++ "{\n" ++ defs ++ indent i ++ "}\n"
319− bcc xs
256+-- = indent i ++ "switch(GETINT(" ++ creg r ++ ")) {\n" ++
257+-- concatMap (showCase i) code ++
258+-- showDef i def ++
259+-- indent i ++ "}\n"
260+ = concatMap (iCase (creg r)) code ++
261+ indent i ++ "{\n" ++ showDefS i def ++ indent i ++ "}\n"
320262 | strConsts code
321− = do
322− is <- get
323− let i = level is
324− codes <- mapM getCode code
325− defs <- showDefS def
326− tell $ concatMap (strCase i ("GETSTR(" ++ creg r ++ ")")) codes
327− ++ indent i ++ "{\n" ++ defs ++ indent i ++ "}\n"
328− bcc xs
263+ = concatMap (strCase ("GETSTR(" ++ creg r ++ ")")) code ++
264+ indent i ++ "{\n" ++ showDefS i def ++ indent i ++ "}\n"
329265 | bigintConsts code
330− = do
331− is <- get
332− let i = level is
333− codes <- mapM getCode code
334− defs <- showDefS def
335− tell $ concatMap (biCase i (creg r)) codes ++
336− indent i ++ "{\n" ++ defs ++ indent i ++ "}\n"
337− bcc xs
266+ = concatMap (biCase (creg r)) code ++
267+ indent i ++ "{\n" ++ showDefS i def ++ indent i ++ "}\n"
338268 | otherwise = error $ "Can't happen: Can't compile const case " ++ show code
339269 where
340270 intConsts ((I _, _ ) : _) = True
@@ -351,119 +281,72 @@ bcc ((CONSTCASE r code def):xs)
351281 strConsts ((Str _, _ ) : _) = True
352282 strConsts _ = False
353283
354− getCode (x, code) = do
355− c <- getBC code xs
356− return (x, c)
357−
358− strCase i sv (s, bc) =
284+ strCase sv (s, bc) =
359285 indent i ++ "if (strcmp(" ++ sv ++ ", " ++ show s ++ ") == 0) {\n" ++
360− bc ++ indent i ++ "} else\n"
361− biCase i bv (BI b, bc) =
286+ concatMap (bcc (i+1)) bc ++ indent i ++ "} else\n"
287+ biCase bv (BI b, bc) =
362288 indent i ++ "if (bigEqConst(" ++ bv ++ ", " ++ show b ++ ")) {\n"
363− ++ bc ++ indent i ++ "} else\n"
364− iCase i v (I b, bc) =
289+ ++ concatMap (bcc (i+1)) bc ++ indent i ++ "} else\n"
290+ iCase v (I b, bc) =
365291 indent i ++ "if (GETINT(" ++ v ++ ") == " ++ show b ++ ") {\n"
366− ++ bc ++ indent i ++ "} else\n"
367− iCase i v (Ch b, bc) =
292+ ++ concatMap (bcc (i+1)) bc ++ indent i ++ "} else\n"
293+ iCase v (Ch b, bc) =
368294 indent i ++ "if (GETINT(" ++ v ++ ") == " ++ show (fromEnum b) ++ ") {\n"
369− ++ bc ++ indent i ++ "} else\n"
370− iCase i v (B8 w, bc) =
295+ ++ concatMap (bcc (i+1)) bc ++ indent i ++ "} else\n"
296+ iCase v (B8 w, bc) =
371297 indent i ++ "if (GETBITS8(" ++ v ++ ") == " ++ show (fromEnum w) ++ ") {\n"
372− ++ bc ++ indent i ++ "} else\n"
373− iCase i v (B16 w, bc) =
298+ ++ concatMap (bcc (i+1)) bc ++ indent i ++ "} else\n"
299+ iCase v (B16 w, bc) =
374300 indent i ++ "if (GETBITS16(" ++ v ++ ") == " ++ show (fromEnum w) ++ ") {\n"
375− ++ bc ++ indent i ++ "} else\n"
376− iCase i v (B32 w, bc) =
301+ ++ concatMap (bcc (i+1)) bc ++ indent i ++ "} else\n"
302+ iCase v (B32 w, bc) =
377303 indent i ++ "if (GETBITS32(" ++ v ++ ") == " ++ show (fromEnum w) ++ ") {\n"
378− ++ bc ++ indent i ++ "} else\n"
379− iCase i v (B64 w, bc) =
304+ ++ concatMap (bcc (i+1)) bc ++ indent i ++ "} else\n"
305+ iCase v (B64 w, bc) =
380306 indent i ++ "if (GETBITS64(" ++ v ++ ") == " ++ show (fromEnum w) ++ ") {\n"
381− ++ bc ++ indent i ++ "} else\n"
382−
383− showDefS Nothing = return ""
384− showDefS (Just c) = getBC c xs
385−
386−bcc (CALL n:xs) = do
387− i <- get
388− tell $ indent (level i) ++ "CALL(" ++ cname n ++ ");\n"
389− bcc xs
390−bcc (TAILCALL n:xs) = do
391− i <- get
392− tell $ indent (level i) ++ "TAILCALL(" ++ cname n ++ ");\n"
393− bcc xs
394−bcc ((SLIDE n):xs) = do
395− i <- get
396− tell $ indent (level i) ++ "SLIDE(vm, " ++ show n ++ ");\n"
397− bcc xs
398−bcc (REBASE:xs) = do
399− i <- get
400− tell $ indent (level i)++ "REBASE;\n"
401− bcc xs
402−bcc ((RESERVE 0):xs) = bcc xs
403−bcc ((RESERVE n):xs) = do
404− i <- get
405− tell $ indent (level i) ++ "RESERVE(" ++ show n ++ ");\n"
406− bcc xs
407−bcc ((ADDTOP 0):xs) = bcc xs
408−bcc ((ADDTOP n):xs) = do
409− i <- get
410− tell $ indent (level i) ++ "ADDTOP(" ++ show n ++ ");\n"
411− bcc xs
412−bcc ((TOPBASE n):xs) = do
413− i <- get
414− tell $ indent (level i) ++ "TOPBASE(" ++ show n ++ ");\n"
415− bcc xs
416−bcc ((BASETOP n):xs) = do
417− i <- get
418− tell $ indent (level i) ++ "BASETOP(" ++ show n ++ ");\n"
419− bcc xs
420−bcc (STOREOLD:xs) = do
421− i <- get
422− tell $ indent (level i) ++ "STOREOLD;\n"
423− bcc xs
424−bcc ((OP l fn args):xs) = do
425− i <- get
426− tell $ indent (level i) ++ doOp (creg l ++ " = ") fn args ++ ";\n"
427− bcc xs
428−bcc ((FOREIGNCALL l rty (FStr fn@('&':name)) []):xs) = do
429− i <- get
430− tell $ indent (level i) ++ c_irts (toFType rty) (creg l ++ " = ") fn ++ ";\n"
431− bcc xs
432−bcc ((FOREIGNCALL l rty (FStr fn) (x:xs)):zs) | fn == "%wrapper"
433− = do
434− i <- get
435− tell $ indent (level i) ++ c_irts (toFType rty) (creg l ++ " = ")
307+ ++ concatMap (bcc (i+1)) bc ++ indent i ++ "} else\n"
308+ showCase i (t, bc) = indent i ++ "case " ++ show t ++ ":\n"
309+ ++ concatMap (bcc (i+1)) bc ++
310+ indent (i + 1) ++ "break;\n"
311+ showDef i Nothing = ""
312+ showDef i (Just c) = indent i ++ "default:\n"
313+ ++ concatMap (bcc (i+1)) c ++
314+ indent (i + 1) ++ "break;\n"
315+ showDefS i Nothing = ""
316+ showDefS i (Just c) = concatMap (bcc (i+1)) c
317+
318+bcc i (CALL n) = indent i ++ "CALL(" ++ cname n ++ ");\n"
319+bcc i (TAILCALL n) = indent i ++ "TAILCALL(" ++ cname n ++ ");\n"
320+bcc i (SLIDE n) = indent i ++ "SLIDE(vm, " ++ show n ++ ");\n"
321+bcc i REBASE = indent i ++ "REBASE;\n"
322+bcc i (RESERVE 0) = ""
323+bcc i (RESERVE n) = indent i ++ "RESERVE(" ++ show n ++ ");\n"
324+bcc i (ADDTOP 0) = ""
325+bcc i (ADDTOP n) = indent i ++ "ADDTOP(" ++ show n ++ ");\n"
326+bcc i (TOPBASE n) = indent i ++ "TOPBASE(" ++ show n ++ ");\n"
327+bcc i (BASETOP n) = indent i ++ "BASETOP(" ++ show n ++ ");\n"
328+bcc i STOREOLD = indent i ++ "STOREOLD;\n"
329+bcc i (OP l fn args) = indent i ++ doOp (creg l ++ " = ") fn args ++ ";\n"
330+bcc i (FOREIGNCALL l rty (FStr fn@('&':name)) [])
331+ = indent i ++
332+ c_irts (toFType rty) (creg l ++ " = ") fn ++ ";\n"
333+bcc i (FOREIGNCALL l rty (FStr fn) (x:xs)) | fn == "%wrapper"
334+ = indent i ++
335+ c_irts (toFType rty) (creg l ++ " = ")
436336 ("_idris_get_wrapper(" ++ creg (snd x) ++ ")") ++ ";\n"
437− bcc zs
438−bcc ((FOREIGNCALL l rty (FStr fn) (x:xs)):zs) | fn == "%dynamic"
439− = do
440− i <- get
441− tell $ indent (level i) ++ c_irts (toFType rty) (creg l ++ " = ")
337+bcc i (FOREIGNCALL l rty (FStr fn) (x:xs)) | fn == "%dynamic"
338+ = indent i ++ c_irts (toFType rty) (creg l ++ " = ")
442339 ("(*(" ++ cFnSig "" rty xs ++ ") GETPTR(" ++ creg (snd x) ++ "))" ++
443340 "(" ++ showSep "," (map fcall xs) ++ ")") ++ ";\n"
444− bcc zs
445−bcc ((FOREIGNCALL l rty (FStr fn) args):xs) = do
446− i <- get
447− tell $ indent (level i) ++ c_irts (toFType rty) (creg l ++ " = ")
448− (fn ++ "(" ++ showSep "," (map fcall args) ++ ")") ++ ";\n"
449− bcc xs
450−bcc ((FOREIGNCALL l rty _ args):_) = error "Foreign Function calls cannot be partially applied, without being inlined."
451−bcc ((NULL r):xs) = do
452− i <- get
453− tell $ indent (level i) ++ creg r ++ " = NULL;\n" -- clear, so it'll be GCed
454− bcc xs
455−bcc ((ERROR str):xs) = do
456− i <- get
457− tell $ indent (level i) ++ "fprintf(stderr, "
458− ++ show str ++ "); fprintf(stderr, \"\\n\"); exit(-1);\n"
459− bcc xs
341+bcc i (FOREIGNCALL l rty (FStr fn) args)
342+ = indent i ++
343+ c_irts (toFType rty) (creg l ++ " = ")
344+ (fn ++ "(" ++ showSep "," (map fcall args) ++ ")") ++ ";\n"
345+bcc i (FOREIGNCALL l rty _ args) = error "Foreign Function calls cannot be partially applied, without being inlined."
346+bcc i (NULL r) = indent i ++ creg r ++ " = NULL;\n" -- clear, so it'll be GCed
347+bcc i (ERROR str) = indent i ++ "fprintf(stderr, " ++ show str ++ "); fprintf(stderr, \"\\n\"); exit(-1);\n"
460348-- bcc i c = error (show c) -- indent i ++ "// not done yet\n"
461349
462−getBC code xs = do
463− i <- get
464− let (a, s, w) = runRWS (bcc code) 0 (i { level = level i + 1 })
465− return w
466−
467350fcall (t, arg) = irts_c (toFType t) (creg arg)
468351-- Deconstruct the Foreign type in the defunctionalised expression and build
469352-- a foreign type description for c_irts and irts_c