1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
functor SparcRewrite(Instr:SPARCINSTR) =
struct
structure I = Instr
structure C = I.C
structure CB = CellsBasis
structure CS = CB.CellSet
fun error msg = MLRiscErrorMsg.error ("SparcRewrite", msg)
fun rewriteUse(instr,rs,rt) = let
fun match r = CB.sameColor(r,rs)
fun R r = if match r then rt else r
fun O(i as I.REG r) = if match r then I.REG rt else i
| O i = i
fun EA(SOME(I.Displace{base, disp, mem})) =
SOME(I.Displace{base=R base, disp=disp, mem=mem})
| EA ea = ea
fun sparcUse(instr) =
(case instr of
I.LOAD{l,r,i,d,mem} => I.LOAD{l=l,r=R r,i=O i,d=d,mem=mem}
| I.STORE{s,d,r,i,mem} => I.STORE{s=s,d=R d,r=R r,i=O i,mem=mem}
| I.FLOAD{l,r,i,d,mem} => I.FLOAD{l=l,r=R r,i=O i,d=d,mem=mem}
| I.FSTORE{s,d,r,i,mem} => I.FSTORE{s=s,d=d,r=R r,i=O i,mem=mem}
| I.ARITH{a,r,i,d} => I.ARITH{a=a,r=R r,i=O i,d=d}
| I.SHIFT{s,r,i,d} => I.SHIFT{s=s,r=R r,i=O i,d=d}
| I.BR{r,p,rcond,a,nop,label} =>
I.BR{r=R r,p=p,rcond=rcond,a=a,nop=nop,label=label}
| I.MOVicc{b,i,d} => I.MOVicc{b=b,i=O i,d=R d}
| I.MOVfcc{b,i,d} => I.MOVfcc{b=b,i=O i,d=R d}
| I.MOVR{rcond,r,i,d} => I.MOVR{rcond=rcond,r=R r,i=O i,d=R d}
| I.JMP{r,i,labs,nop} => I.JMP{r=R r,i=O i,labs=labs,nop=nop}
| I.JMPL{r,i,d,defs,uses,cutsTo,nop,mem} =>
I.JMPL{r=R r,i=O i,d=d,defs=defs,
uses=CS.map {from=rs,to=rt} uses,
cutsTo=cutsTo,nop=nop,mem=mem}
| I.CALL{defs,uses,label,cutsTo,nop,mem} =>
I.CALL{defs=defs,uses=CS.map {from=rs,to=rt} uses,
label=label,cutsTo=cutsTo,nop=nop,mem=mem}
| I.SAVE{r,i,d} => I.SAVE{r=R r,i=O i,d=d}
| I.RESTORE{r,i,d} => I.RESTORE{r=R r,i=O i,d=d}
| I.WRY{r,i} => I.WRY{r=R r,i=O i}
| I.Ticc{t,cc,r,i} => I.Ticc{t=t,cc=cc,r=R r,i=O i}
| _ => instr
(*esac*))
in
case instr
of (I.ANNOTATION{i, ...}) => rewriteUse(i, rs, rt)
| I.LIVE{regs, spilled} => I.LIVE{regs=C.addReg(rt, C.rmvReg(rs, regs)),
spilled=spilled}
| I.INSTR(i) => I.INSTR(sparcUse(i))
| I.COPY{k as CB.GP, sz, src,dst,tmp} =>
I.COPY{k=k, sz=sz, src=map R src,dst=dst,tmp=EA tmp}
| _ => error "rewriteUse"
end
fun rewriteDef(instr,rs,rt) = let
fun match r = CB.sameColor(r,rs)
fun R r = if match r then rt else r
fun ea(SOME(I.Direct r)) = SOME(I.Direct(R r))
| ea x = x
fun sparcDef(instr) =
(case instr
of I.LOAD{l,r,i,d,mem} => I.LOAD{l=l,r=r,i=i,d=R d,mem=mem}
| I.ARITH{a,r,i,d} => I.ARITH{a=a,r=r,i=i,d=R d}
| I.SHIFT{s,r,i,d} => I.SHIFT{s=s,r=r,i=i,d=R d}
| I.SETHI{i,d} => I.SETHI{i=i,d=R d}
| I.MOVicc{b,i,d} => I.MOVicc{b=b,i=i,d=R d}
| I.MOVfcc{b,i,d} => I.MOVfcc{b=b,i=i,d=R d}
| I.MOVR{rcond,r,i,d} => I.MOVR{rcond=rcond,r=r,i=i,d=R d}
| I.JMPL{r,i,d,defs,uses,cutsTo,nop,mem} =>
I.JMPL{r=r,i=i,d=R d,defs=CS.map {from=rs,to=rt} defs,
uses=uses,cutsTo=cutsTo,nop=nop,mem=mem}
| I.CALL{defs,uses,label,cutsTo,nop,mem} =>
I.CALL{defs=CS.map {from=rs,to=rt} defs,
uses=uses,label=label,cutsTo=cutsTo,nop=nop,mem=mem}
| I.SAVE{r,i,d} => I.SAVE{r=r,i=i,d=R d}
| I.RESTORE{r,i,d} => I.RESTORE{r=r,i=i,d=R d}
| I.RDY{d} => I.RDY{d=R d}
| _ => instr
(*esac*))
in
case instr
of I.ANNOTATION{i, ...} => rewriteDef(i, rs, rt)
| I.KILL{regs, spilled} =>
I.KILL{regs=C.addReg(rt, C.rmvReg(rs, regs)), spilled=spilled}
| I.INSTR(i) => I.INSTR(sparcDef(i))
| I.COPY{k as CB.GP, sz, src,dst,tmp} =>
I.COPY{k=k, sz=sz, src=src, dst=map R dst,tmp=ea tmp}
| _ => error "rewriteDef"
end
fun frewriteUse(instr,rs,rt) = let
fun match r = CB.sameColor(r,rs)
fun R r = if match r then rt else r
fun sparcUse(instr) =
(case instr of
I.FPop1{a,r,d} => I.FPop1{a=a,r=R r,d=d}
| I.FPop2{a,r1,r2,d} => I.FPop2{a=a,r1=R r1,r2=R r2,d=d}
| I.FCMP{cmp,r1,r2,nop} => I.FCMP{cmp=cmp,r1=R r1,r2=R r2,nop=nop}
| I.FSTORE{s,r,i,d,mem} => I.FSTORE{s=s,r=r,i=i,d=R d,mem=mem}
| I.FMOVicc{sz,b,r,d} => I.FMOVicc{sz=sz,b=b,r=R r,d=R d}
| I.FMOVfcc{sz,b,r,d} => I.FMOVfcc{sz=sz,b=b,r=R r,d=R d}
| I.JMPL{r,i,d,defs,uses,cutsTo,nop,mem} =>
I.JMPL{r=r,i=i,d=d,defs=defs,
uses=CS.map {from=rs,to=rt} uses,
cutsTo=cutsTo,nop=nop,mem=mem}
| I.CALL{defs,uses,label,cutsTo,nop,mem} =>
I.CALL{defs=defs,uses=CS.map {from=rs,to=rt} uses,
label=label,cutsTo=cutsTo,nop=nop,mem=mem}
| _ => instr
(*esac*))
in
case instr
of I.ANNOTATION{i, ...} => frewriteUse(i, rs, rt)
| I.INSTR(i) => I.INSTR(sparcUse(i))
| I.LIVE{regs, spilled} =>
I.LIVE{regs=C.addFreg(rt, C.rmvFreg(rs, regs)), spilled=spilled}
| I.COPY{k as CB.FP, sz, src,dst,tmp} =>
I.COPY{k=k, sz=sz, src=map R src,dst=dst,tmp=tmp}
| _ => error "frewriteUse"
end
fun frewriteDef(instr,rs,rt) = let
fun match r = CB.sameColor(r,rs)
fun R r = if match r then rt else r
fun ea(SOME(I.FDirect r)) = SOME(I.FDirect(R r))
| ea x = x
fun sparcDef(instr) =
(case instr of
I.FPop1{a,r,d} => I.FPop1{a=a,r=r,d=R d}
| I.FPop2{a,r1,r2,d} => I.FPop2{a=a,r1=r1,r2=r2,d=R d}
| I.FLOAD{l,r,i,d,mem} => I.FLOAD{l=l,r=r,i=i,d=R d,mem=mem}
| I.FMOVicc{sz,b,r,d} => I.FMOVicc{sz=sz,b=b,r=r,d=R d}
| I.FMOVfcc{sz,b,r,d} => I.FMOVfcc{sz=sz,b=b,r=r,d=R d}
| I.JMPL{r,i,d,defs,uses,cutsTo,nop,mem} =>
I.JMPL{r=r,i=i,d=d,defs=CS.map {from=rs,to=rt} defs,
uses=uses,cutsTo=cutsTo,nop=nop,mem=mem}
| I.CALL{defs,uses,label,cutsTo,nop,mem} =>
I.CALL{defs=CS.map {from=rs,to=rt} defs,
uses=uses,label=label,cutsTo=cutsTo,nop=nop,mem=mem}
| _ => instr
(*esac*))
in
case instr
of I.ANNOTATION{i, ...} => frewriteDef(i, rs, rt)
| I.KILL{regs, spilled} =>
I.KILL{regs=C.addFreg(rt, C.rmvFreg(rs, regs)), spilled=spilled}
| I.INSTR(i) => I.INSTR(sparcDef(i))
| I.COPY{k as CB.FP, sz, src,dst,tmp} =>
I.COPY{k=k, sz=sz, src=src,dst=map R dst,tmp=ea tmp}
| _ => error "frewriteUse"
end
end
|
