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[smlnj] Annotation of /sml/trunk/src/MLRISC/ppc/ra/ppcRewrite.sml
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Annotation of /sml/trunk/src/MLRISC/ppc/ra/ppcRewrite.sml

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1 : monnier 245 functor PPCRewrite(Instr : PPCINSTR) = struct
2 :     structure I = Instr
3 : leunga 657 structure C = I.C
4 : george 889 structure CB = CellsBasis
5 : monnier 245
6 : leunga 744 fun ea(NONE, _, _) = NONE
7 :     | ea(e as SOME(I.Direct r), rs, rt) =
8 : george 889 if CB.sameColor(r,rs) then SOME(I.Direct rt) else e
9 : leunga 744 | ea(e as SOME(I.FDirect r), rs, rt) =
10 : george 889 if CB.sameColor(r,rs) then SOME(I.FDirect rt) else e
11 : leunga 744 | ea(e as SOME(I.Displace{base, disp}), rs, rt) =
12 : george 889 if CB.sameColor(base,rs) then SOME(I.Displace{base=rt, disp=disp})
13 : monnier 245 else e
14 :    
15 : leunga 744 fun rewriteUse(instr, rs, rt) = let
16 : george 889 fun rplac r = if CB.sameColor(r,rs) then rt else r
17 : monnier 245 fun rwOperand(opnd as I.RegOp r) =
18 : george 889 if CB.sameColor(r,rs) then I.RegOp rt else opnd
19 : monnier 245 | rwOperand opnd = opnd
20 :     in
21 :     case instr
22 : monnier 411 of I.L {ld, rt, ra, d, mem} =>
23 :     I.L{ld=ld, rt=rt, ra=rplac ra, d=rwOperand d, mem=mem}
24 :     | I.LF {ld, ft, ra, d, mem} =>
25 :     I.LF{ld=ld, ft=ft, ra=rplac ra, d=rwOperand d, mem=mem}
26 :     | I.ST {st, rs, ra, d, mem} =>
27 :     I.ST{st=st, rs=rplac rs, ra=rplac ra, d=rwOperand d, mem=mem}
28 :     | I.STF {st, fs, ra, d, mem} =>
29 :     I.STF{st=st, fs=fs, ra=rplac ra, d=rwOperand d, mem=mem}
30 :     | I.UNARY {oper, rt, ra, Rc, OE} =>
31 :     I.UNARY{oper=oper, rt=rt, ra=rplac ra, Rc=Rc, OE=OE}
32 : monnier 245 | I.ARITH{oper, rt, ra, rb, Rc, OE} =>
33 :     I.ARITH{oper=oper, rt=rt, ra=rplac ra, rb=rplac rb, Rc=Rc, OE=OE}
34 :     | I.ARITHI{oper, rt, ra, im} =>
35 :     I.ARITHI{oper=oper, rt=rt, ra=rplac ra, im=rwOperand im}
36 :     | I.ROTATE {oper, ra, rs, sh, mb, me} =>
37 : monnier 411 I.ROTATE{oper=oper, ra=ra, rs=rplac rs, sh=rplac sh, mb=mb, me=me}
38 :     | I.ROTATEI {oper, ra, rs, sh, mb, me} =>
39 :     I.ROTATEI{oper=oper, ra=ra, rs=rplac rs, sh=rwOperand sh, mb=mb, me=me}
40 :     | I.COMPARE {cmp, bf, l, ra, rb} =>
41 :     I.COMPARE{cmp=cmp, bf=bf, l=l, ra=rplac ra, rb=rwOperand rb}
42 : monnier 245 | I.MTSPR{rs, spr} => I.MTSPR{rs=rplac rs, spr=spr}
43 : monnier 411 | I.TW {to, ra, si} => I.TW{to=to, ra=rplac ra, si=rwOperand si}
44 :     | I.TD {to, ra, si} => I.TD{to=to, ra=rplac ra, si=rwOperand si}
45 : leunga 796 | I.CALL {def, use, cutsTo, mem} =>
46 :     I.CALL{def=def, use=C.CellSet.map {from=rs,to=rt} use,
47 :     cutsTo=cutsTo, mem=mem}
48 : monnier 245 | I.COPY{dst, src, impl, tmp} =>
49 :     I.COPY{dst=dst, src=map rplac src, impl=impl, tmp=tmp}
50 :     | I.FCOPY{dst, src, impl, tmp} =>
51 : leunga 744 I.FCOPY{dst=dst, src=src, impl=impl, tmp=ea(tmp, rs, rt)}
52 : leunga 657 | I.ANNOTATION{i,a} =>
53 : leunga 744 I.ANNOTATION{i=rewriteUse(i,rs,rt),
54 : leunga 657 a=case a of
55 : george 889 CB.DEF_USE{cellkind=CB.GP,defs,uses} =>
56 :     CB.DEF_USE{cellkind=CB.GP,uses=map rplac uses,
57 : leunga 657 defs=defs}
58 :     | _ => a}
59 : monnier 245 | _ => instr
60 :     end
61 :    
62 : leunga 744 fun rewriteDef(instr, rs, rt) = let
63 : george 889 fun rplac r = if CB.sameColor(r,rs) then rt else r
64 : monnier 245 in
65 :     case instr
66 : monnier 411 of I.L {ld, rt, ra, d, mem} =>
67 :     I.L{ld=ld, rt=rplac rt, ra=ra, d=d, mem=mem}
68 : monnier 245 | I.UNARY {oper, rt, ra, Rc, OE} =>
69 :     I.UNARY{oper=oper, rt=rplac rt, ra=ra, Rc=Rc, OE=OE}
70 :     | I.ARITH {oper, rt, ra, rb, Rc, OE} =>
71 :     I.ARITH{oper=oper, rt=rplac rt, ra=ra, rb=rb, Rc=Rc, OE=OE}
72 :     | I.ARITHI {oper, rt, ra, im} =>
73 :     I.ARITHI {oper=oper, rt=rplac rt, ra=ra, im=im}
74 :     | I.ROTATE {oper, ra, rs, sh, mb, me} =>
75 :     I.ROTATE {oper=oper, ra=rplac ra, rs=rs, sh=sh, mb=mb, me=me}
76 : monnier 411 | I.ROTATEI {oper, ra, rs, sh, mb, me} =>
77 :     I.ROTATEI {oper=oper, ra=rplac ra, rs=rs, sh=sh, mb=mb, me=me}
78 : monnier 245 | I.MFSPR {rt, spr} => I.MFSPR{rt=rplac rt, spr=spr}
79 : leunga 796 | I.CALL {def, use, cutsTo, mem} =>
80 :     I.CALL{def=C.CellSet.map {from=rs,to=rt} def, use=use,
81 :     cutsTo=cutsTo, mem=mem}
82 : monnier 245 | I.COPY {dst, src, impl, tmp} =>
83 : leunga 744 I.COPY{dst=map rplac dst, src=src, impl=impl, tmp=ea(tmp,rs,rt)}
84 : leunga 657 | I.ANNOTATION{i,a} =>
85 : leunga 744 I.ANNOTATION{i=rewriteDef(i,rs,rt),
86 : leunga 657 a=case a of
87 : george 889 CB.DEF_USE{cellkind=CB.GP,defs,uses} =>
88 :     CB.DEF_USE{cellkind=CB.GP,uses=uses,
89 : leunga 657 defs=map rplac defs}
90 :     | _ => a}
91 : monnier 245 | _ => instr
92 :     end
93 :    
94 : leunga 744 fun frewriteUse(instr, fs, ft) = let
95 : george 889 fun rplac r = if CB.sameColor(r,fs) then ft else r
96 : monnier 245 in
97 :     case instr
98 : monnier 411 of I.STF {st, fs, ra, d, mem} =>
99 :     I.STF{st=st, fs=rplac fs, ra=ra, d=d, mem=mem}
100 : leunga 796 | I.CALL{def, use, cutsTo, mem} =>
101 :     I.CALL{def=def, use=C.CellSet.map {from=fs,to=ft} use,
102 :     cutsTo=cutsTo, mem=mem}
103 : monnier 245 | I.FCOMPARE {cmp, bf, fa, fb} =>
104 :     I.FCOMPARE{cmp=cmp, bf=bf, fa=rplac fa, fb=rplac fb}
105 :     | I.FUNARY {oper, ft, fb, Rc} =>
106 :     I.FUNARY{oper=oper, ft=ft, fb=rplac fb, Rc=Rc}
107 :     | I.FARITH {oper, ft, fa, fb, Rc} =>
108 :     I.FARITH{oper=oper, ft=ft, fa=rplac fa, fb=rplac fb, Rc=Rc}
109 : monnier 411 | I.FARITH3 {oper, ft, fa, fb, fc, Rc} =>
110 :     I.FARITH3{oper=oper,ft=ft,fa=rplac fa, fb=rplac fb, fc=rplac fc,Rc=Rc}
111 : monnier 245 | I.FCOPY {dst, src, impl, tmp} =>
112 :     I.FCOPY{dst=dst, src=map rplac src, impl=impl, tmp=tmp}
113 : leunga 657 | I.ANNOTATION{i,a} =>
114 : leunga 744 I.ANNOTATION{i=frewriteUse(i,fs,ft),
115 : leunga 657 a=case a of
116 : george 889 CB.DEF_USE{cellkind=CB.FP,defs,uses} =>
117 :     CB.DEF_USE{cellkind=CB.FP,uses=map rplac uses,
118 : leunga 657 defs=defs}
119 :     | _ => a}
120 : monnier 245 | _ => instr
121 :     end
122 :    
123 :    
124 : leunga 744 fun frewriteDef(instr, fs, ft) = let
125 : george 889 fun rplac r = if CB.sameColor(r,fs) then ft else r
126 : monnier 245 in
127 :     case instr
128 : monnier 411 of I.LF{ld, ft, ra, d, mem} =>
129 :     I.LF{ld=ld, ft=rplac ft, ra=ra, d=d, mem=mem}
130 : monnier 245 | I.FUNARY {oper, ft, fb, Rc} =>
131 :     I.FUNARY{oper=oper, ft=rplac ft, fb=fb, Rc=Rc}
132 :     | I.FARITH{oper, ft, fa, fb, Rc} =>
133 :     I.FARITH{oper=oper, ft=rplac ft, fa=fa, fb=fb, Rc=Rc}
134 : monnier 411 | I.FARITH3{oper, ft, fa, fb, fc, Rc} =>
135 :     I.FARITH3{oper=oper, ft=rplac ft, fa=fa, fb=fb, fc=fc, Rc=Rc}
136 : monnier 245 (* CALL = BCLR {bo=ALWAYS, bf=0, bit=0, LK=true, labels=[] *)
137 : leunga 796 | I.CALL{def, use, cutsTo, mem} =>
138 :     I.CALL{def=C.CellSet.map {from=fs,to=ft} def, use=use,
139 :     cutsTo=cutsTo, mem=mem}
140 : monnier 245 | I.FCOPY {dst, src, impl, tmp} =>
141 : leunga 744 I.FCOPY{dst=map rplac dst, src=src, impl=impl, tmp=ea(tmp,fs,ft)}
142 : leunga 657 | I.ANNOTATION{i,a} =>
143 : leunga 744 I.ANNOTATION{i=frewriteDef(i,fs,ft),
144 : leunga 657 a=case a of
145 : george 889 CB.DEF_USE{cellkind=CB.FP,defs,uses} =>
146 :     CB.DEF_USE{cellkind=CB.FP,uses=uses,
147 : leunga 657 defs=map rplac defs}
148 :     | _ => a}
149 : monnier 245 | _ => instr
150 :     end
151 :     end
152 :    

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