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[diderot] Diff of /trunk/src/compiler/IL/ssa-pp-fn.sml
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Diff of /trunk/src/compiler/IL/ssa-pp-fn.sml

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revision 255, Sun Aug 8 14:55:53 2010 UTC revision 256, Mon Aug 9 17:28:57 2010 UTC
# Line 8  Line 8 
8    
9  functor SSAPPFn (IL : SSA) : sig  functor SSAPPFn (IL : SSA) : sig
10    
11        val output : TextIO.outstream * IL.program -> unit
12    
13    end = struct    end = struct
14    
15        structure Op = IL.Op
16        structure Var = IL.Var
17    
18        fun indent (outS, i) = TextIO.output(outS, StringCvt.padLeft #" " i "")
19        fun incIndent (outS, i) = (outS, i+2)
20        fun pr ((outS, _), s) = TextIO.output(outS, s)
21        fun prl (out, l) = pr(out, concat l)
22    
23        fun ppRHS (out, IL.VAR x) = pr(out, Var.toString x)
24          | ppRHS (out, IL.LIT lit) = pr(out, Literal.toString lit)
25          | ppRHS (out, IL.OP(rator, args)) = prl (out, [
26                Op.toString rator, "(", String.concatWith "," (List.map Var.toString args), ")"
27              ])
28          | ppRHS (out, IL.CONS xs) =
29              prl (out, ["[", String.concatWith "," (List.map Var.toString xs), "]"])
30    
31        fun labelOf (IL.STM{id, ...}) = "L"^Stamp.toString id
32    
33        fun ppStmt (out, stm as IL.STM{id, kind, next, ...}) = let
34              val out1 = incIndent out
35              fun prPhi (y, xs) = (
36                    indent out1;
37                    prl (out1, [
38                        Var.toString y, " = phi(",
39                        String.concatWith "," (List.map Var.toString xs), ")\n"
40                      ]))
41              in
42                indent out;
43                prl (out, [
44                    IL.Stmt.toString stm, "(", IL.Node.toString(IL.Stmt.entry stm), "):  # preds = [",
45                    String.concatWith "," (List.map IL.Node.toString (IL.Node.preds(IL.Stmt.entry stm))),
46                    "]\n"
47                  ]);
48                case kind
49                 of IL.S_SIMPLE(IL.ND{kind, ...}) => (case kind
50                       of IL.NULL => raise Fail "unexpected S_SIMPLE with NULL node"
51                        | IL.ENTRY _ => (indent out1; pr(out1, "entry;\n"))
52                        | IL.JOIN{phis, ...} => List.app prPhi (!phis)
53                        | IL.COND _ => raise Fail "unexpected S_SIMPLE with COND node"
54                        | IL.BLOCK{body=ref [], ...} => (indent out1; pr (out, "empty;\n"))
55                        | IL.BLOCK{body, ...} => (
56                            List.app
57                              (fn (y, rhs) => (
58                                  indent out1;
59                                  prl(out1, [Var.toString y, " = "]); ppRHS(out1, rhs); pr(out1, ";\n"))
60                              ) (!body))
61                        | IL.NEW{actor, args, ...} => (
62                            indent out1;
63                            prl (out1, [
64                                "new ", Atom.toString actor, "(",
65                                String.concatWith "," (List.map Var.toString args), ");\n"
66                              ]))
67                        | IL.DIE _ => (indent out1; pr(out1, "die;\n"))
68                        | IL.STABILIZE _ => (indent out1; pr(out1, "stabilize;\n"))
69                        | IL.EXIT _ => (indent out1; pr(out1, "exit;\n"))
70                      (* end case *))
71                  | IL.S_IF{cond=IL.ND{kind=IL.COND{cond, ...}, ...}, thenBranch, elseBranch} => (
72                      indent out1;  prl(out1, ["if ", Var.toString cond, " then\n"]);
73                      ppStmt (incIndent out1, thenBranch);
74                      indent out1; pr(out1, "else\n");
75                      ppStmt (incIndent out1, elseBranch);
76                      indent out1; pr(out1, "endif;\n"))
77                  | IL.S_LOOP _ => raise Fail "LOOP"
78                (* end case *);
79                ppNext (out, next)
80              end
81    
82        and ppNext (out, NONE) = ()
83          | ppNext (out, SOME stm) = ppStmt (out, stm)
84    
85        fun ppMethod (out, IL.Method{name, stateIn, stateOut, body}) = let
86              val out1 = incIndent out
87              fun prVars xs = List.app (fn x => prl(out, [" ", Var.toString x])) xs
88              in
89                indent out; prl(out, ["method ", Atom.toString name, "\n"]);
90                indent out1; pr(out1, "state in: "); prVars stateIn; pr(out1, "\n");
91                ppStmt (incIndent out1, body);
92                indent out1; pr(out1, "state out:"); prVars stateOut; pr(out1, "\n");
93                indent out; prl(out, ["end ", Atom.toString name, "\n"])
94              end
95    
96        and ppActor (out, IL.Actor{name, params, state, stateInit, methods}) = let
97              val out1 = incIndent out
98              fun prVars xs = List.app (fn x => prl(out, [" ", Var.toString x])) xs
99              in
100                indent out;
101                prl(out, [
102                    "actor ", Atom.toString name, " (",
103                    String.concatWith "," (List.map Var.toString params), ")\n"
104                  ]);
105                indent out1; pr(out1, "state: "); prVars state; pr(out1, "\n");
106                ppStmt (incIndent out1, stateInit);
107                List.app (fn m => ppMethod(out1, m)) methods;
108                indent out; prl(out, ["end ", Atom.toString name, "\n"])
109              end
110    
111        fun output (outS, IL.Program{globals, globalInit, actors}) = let
112              val out = (outS, 0)
113              val out1 = incIndent out
114              in
115                pr (out, "## globals\n");
116                List.app (fn x => (indent out1; prl(out1, ["global ", Var.toString x, "\n"]))) globals;
117                pr (out, "## global initialization\n");
118                ppStmt (out1, globalInit);
119                pr (out, "## actors\n");
120                List.app (fn actor => ppActor(out1, actor)) actors;
121                pr (out, "## end program")
122              end
123    
124    end    end

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