| ',' expr lits { $2 : $3 }
cmmproc :: { ExtCode }
- : info maybe_formals '{' body '}'
- { do (info_lbl, info1, info2) <- $1;
- formals <- sequence $2;
- stmts <- getCgStmtsEC (loopDecls $4)
- blks <- code (cgStmtsToBlocks stmts)
- code (emitInfoTableAndCode info_lbl info1 info2 formals blks) }
-
- | info maybe_formals ';'
- { do (info_lbl, info1, info2) <- $1;
- formals <- sequence $2;
- code (emitInfoTableAndCode info_lbl info1 info2 formals []) }
-
- | NAME maybe_formals '{' body '}'
+-- TODO: add real SRT/info tables to parsed Cmm
+-- : info maybe_formals '{' body '}'
+-- { do (info_lbl, info1, info2) <- $1;
+-- formals <- sequence $2;
+-- stmts <- getCgStmtsEC (loopDecls $4)
+-- blks <- code (cgStmtsToBlocks stmts)
+-- code (emitInfoTableAndCode info_lbl info1 info2 formals blks) }
+--
+-- | info maybe_formals ';'
+-- { do (info_lbl, info1, info2) <- $1;
+-- formals <- sequence $2;
+-- code (emitInfoTableAndCode info_lbl info1 info2 formals []) }
+
+ : NAME maybe_formals '{' body '}'
{ do formals <- sequence $2;
stmts <- getCgStmtsEC (loopDecls $4);
blks <- code (cgStmtsToBlocks stmts);
- code (emitProc [] (mkRtsCodeLabelFS $1) formals blks) }
+ code (emitProc CmmNonInfo (mkRtsCodeLabelFS $1) formals blks) }
info :: { ExtFCode (CLabel, [CmmLit],[CmmLit]) }
: 'INFO_TABLE' '(' NAME ',' INT ',' INT ',' INT ',' STRING ',' STRING ')'
| NAME ':'
{ do l <- newLabel $1; code (labelC l) }
--- HACK: this should just be lregs but that causes a shift/reduce conflict
--- with foreign calls
--- | hint_lregs '=' expr ';'
--- { do reg <- head $1; e <- $3; stmtEC (CmmAssign (fst reg) e) }
+ | lreg '=' expr ';'
+ { do reg <- $1; e <- $3; stmtEC (CmmAssign reg e) }
| type '[' expr ']' '=' expr ';'
{ doStore $1 $3 $6 }
+
+ -- Gah! We really want to say "maybe_results" but that causes
+ -- a shift/reduce conflict with assignment. We either
+ -- we expand out the no-result and single result cases or
+ -- we tweak the syntax to avoid the conflict. The later
+ -- option is taken here because the other way would require
+ -- multiple levels of expanding and get unwieldy.
| maybe_results 'foreign' STRING expr '(' hint_exprs0 ')' vols ';'
- {% foreignCall $3 $1 $4 $6 $8 }
+ {% foreignCall $3 $1 $4 $6 $8 NoC_SRT }
| maybe_results 'prim' '%' NAME '(' hint_exprs0 ')' vols ';'
- {% primCall $1 $4 $6 $8 }
+ {% primCall $1 $4 $6 $8 NoC_SRT }
-- stmt-level macros, stealing syntax from ordinary C-- function calls.
-- Perhaps we ought to use the %%-form?
| NAME '(' exprs0 ')' ';'
maybe_results :: { [ExtFCode (CmmFormal, MachHint)] }
: {- empty -} { [] }
- | hint_lregs '=' { $1 }
-
-hint_lregs0 :: { [ExtFCode (CmmFormal, MachHint)] }
- : {- empty -} { [] }
- | hint_lregs { $1 }
+ | '(' hint_lregs ')' '=' { $2 }
hint_lregs :: { [ExtFCode (CmmFormal, MachHint)] }
- : hint_lreg ',' { [$1] }
- | hint_lreg { [$1] }
+ : hint_lreg { [$1] }
+ | hint_lreg ',' { [$1] }
| hint_lreg ',' hint_lregs { $1 : $3 }
hint_lreg :: { ExtFCode (CmmFormal, MachHint) }
-> [ExtFCode (CmmFormal,MachHint)]
-> ExtFCode CmmExpr
-> [ExtFCode (CmmExpr,MachHint)]
- -> Maybe [GlobalReg] -> P ExtCode
-foreignCall conv_string results_code expr_code args_code vols
+ -> Maybe [GlobalReg]
+ -> C_SRT
+ -> P ExtCode
+foreignCall conv_string results_code expr_code args_code vols srt
= do convention <- case conv_string of
"C" -> return CCallConv
"C--" -> return CmmCallConv
expr <- expr_code
args <- sequence args_code
code (emitForeignCall' PlayRisky results
- (CmmForeignCall expr convention) args vols) where
+ (CmmForeignCall expr convention) args vols srt) where
primCall
:: [ExtFCode (CmmFormal,MachHint)]
-> FastString
-> [ExtFCode (CmmExpr,MachHint)]
- -> Maybe [GlobalReg] -> P ExtCode
-primCall results_code name args_code vols
+ -> Maybe [GlobalReg]
+ -> C_SRT
+ -> P ExtCode
+primCall results_code name args_code vols srt
= case lookupUFM callishMachOps name of
Nothing -> fail ("unknown primitive " ++ unpackFS name)
Just p -> return $ do
results <- sequence results_code
args <- sequence args_code
- code (emitForeignCall' PlayRisky results (CmmPrim p) args vols)
+ code (emitForeignCall' PlayRisky results (CmmPrim p) args vols srt)
doStore :: MachRep -> ExtFCode CmmExpr -> ExtFCode CmmExpr -> ExtCode
doStore rep addr_code val_code