Added 'return' to C--, and made arguments to 'jump' into CmmExpr

[ghc-hetmet.git] / compiler / cmm / CmmParse.y

diff --git a/compiler/cmm/CmmParse.y b/compiler/cmm/CmmParse.y
index b3f68a9..38c30b2 100644 (file)
--- a/compiler/cmm/CmmParse.y
+++ b/compiler/cmm/CmmParse.y
@@ -104,6 +104,7 @@ import System.Exit
        'jump'          { L _ (CmmT_jump) }
        'foreign'       { L _ (CmmT_foreign) }
        'prim'          { L _ (CmmT_prim) }
+       'return'        { L _ (CmmT_return) }
        'import'        { L _ (CmmT_import) }
        'switch'        { L _ (CmmT_switch) }
        'case'          { L _ (CmmT_case) }
@@ -279,8 +280,10 @@ stmt       :: { ExtCode }
                { doSwitch $2 $3 $5 $6 }
        | 'goto' NAME ';'
                { do l <- lookupLabel $2; stmtEC (CmmBranch l) }
-       | 'jump' expr {-maybe_actuals-} ';'
-               { do e <- $2; stmtEC (CmmJump e []) }
+       | 'jump' expr maybe_actuals ';'
+               { do e1 <- $2; e2 <- sequence $3; stmtEC (CmmJump e1 e2) }
+        | 'return' maybe_actuals ';'
+               { do e <- sequence $2; stmtEC (CmmReturn e) }
        | 'if' bool_expr '{' body '}' else      
                { ifThenElse $2 $4 $6 }
 
@@ -372,6 +375,10 @@ maybe_ty :: { MachRep }
        : {- empty -}                   { wordRep }
        | '::' type                     { $2 }
 
+maybe_actuals :: { [ExtFCode (CmmExpr, MachHint)] }
+       : {- empty -}           { [] }
+       | '(' hint_exprs0 ')'   { $2 }
+
 hint_exprs0 :: { [ExtFCode (CmmExpr, MachHint)] }
        : {- empty -}                   { [] }
        | hint_exprs                    { $1 }