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[smlnj] Diff of /sml/trunk/src/MLRISC/x86/instructions/x86Props.sml
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Diff of /sml/trunk/src/MLRISC/x86/instructions/x86Props.sml

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revision 683, Wed Jul 5 00:42:19 2000 UTC revision 1101, Thu Feb 28 17:35:18 2002 UTC
# Line 3  Line 3 
3   * COPYRIGHT (c) 1997 Bell Laboratories.   * COPYRIGHT (c) 1997 Bell Laboratories.
4   *)   *)
5    
6  functor X86Props(X86Instr : X86INSTR) : INSN_PROPERTIES =  functor X86Props
7      (structure Instr : X86INSTR
8       structure MLTreeHash : MLTREE_HASH where T = Instr.T
9       structure MLTreeEval : MLTREE_EVAL where T = Instr.T
10      ) : INSN_PROPERTIES =
11  struct  struct
12    structure I = X86Instr    structure I = Instr
13    structure C = I.C    structure C = I.C
14    structure LE = I.LabelExp    structure T = I.T
15      structure CB = CellsBasis
16    
17    exception NegateConditional    exception NegateConditional
18    
19    fun error msg = MLRiscErrorMsg.error("X86Props",msg)    fun error msg = MLRiscErrorMsg.error("X86Props",msg)
20    
21    datatype kind = IK_JUMP | IK_NOP | IK_INSTR | IK_COPY | IK_CALL    datatype kind = IK_JUMP | IK_NOP | IK_INSTR | IK_COPY | IK_CALL
22                  | IK_PHI | IK_SOURCE | IK_SINK                  | IK_CALL_WITH_CUTS | IK_PHI | IK_SOURCE | IK_SINK
23    datatype target = LABELLED of Label.label | FALLTHROUGH | ESCAPES    datatype target = LABELLED of Label.label | FALLTHROUGH | ESCAPES
24   (*========================================================================   (*========================================================================
25    *  Instruction Kinds    *  Instruction Kinds
26    *========================================================================*)    *========================================================================*)
27    fun instrKind (I.JMP _) = IK_JUMP    fun instrKind (I.ANNOTATION{i, ...}) = instrKind i
     | instrKind (I.JCC _) = IK_JUMP  
28      | instrKind (I.COPY _) = IK_COPY      | instrKind (I.COPY _) = IK_COPY
29      | instrKind (I.FCOPY _) = IK_COPY      | instrKind (I.INSTR i)  =
30      | instrKind (I.CALL _) = IK_CALL         (case i
31      | instrKind (I.PHI _)    = IK_PHI           of I.JMP _ => IK_JUMP
32      | instrKind (I.SOURCE _) = IK_SOURCE            | I.JCC _ => IK_JUMP
33      | instrKind (I.SINK _)   = IK_SINK            | I.CALL{cutsTo=_::_,...} => IK_CALL_WITH_CUTS
34      | instrKind (I.RET _) = IK_JUMP            | I.CALL _ => IK_CALL
35      | instrKind (I.ANNOTATION{i,...}) = instrKind i            | I.PHI _    => IK_PHI
36              | I.SOURCE _ => IK_SOURCE
37              | I.SINK _   => IK_SINK
38              | I.RET _ => IK_JUMP
39              | I.INTO => IK_JUMP
40              | _ => IK_INSTR)
41      | instrKind _ = IK_INSTR      | instrKind _ = IK_INSTR
42    
43      fun moveInstr(I.ANNOTATION{i, ...}) = moveInstr i
44        | moveInstr(I.LIVE _) = false
45        | moveInstr(I.KILL _) = false
46        | moveInstr(I.COPY _) = true
47        | moveInstr(I.INSTR i)  =
48           (case i
49             of I.MOVE{mvOp=I.MOVL, src=I.Direct _, dst=I.MemReg _, ...} => true
50              | I.MOVE{mvOp=I.MOVL, src=I.MemReg _, dst=I.Direct _, ...} => true
51              | I.FMOVE{fsize=I.FP64,src=I.FPR _,dst=I.FPR _, ...} => true
52              | I.FMOVE{fsize=I.FP64,src=I.FPR _,dst=I.FDirect _, ...} => true
53              | I.FMOVE{fsize=I.FP64,src=I.FDirect _,dst=I.FPR _, ...} => true
54              | I.FMOVE{fsize=I.FP64,src=I.FDirect _,dst=I.FDirect _, ...} => true
55              | _ => false )
56    
57    
58      fun isMemMove(I.INSTR(i)) =
59          (case i
60            of I.MOVE{mvOp=I.MOVL, src=I.Direct _, dst=I.MemReg _, ...} => true
61             | I.MOVE{mvOp=I.MOVL, src=I.MemReg _, dst=I.Direct _, ...} => true
62             | I.FMOVE{fsize=I.FP64,src=I.FPR _,dst=I.FPR _, ...} => true
63             | I.FMOVE{fsize=I.FP64,src=I.FPR _,dst=I.FDirect _, ...} => true
64             | I.FMOVE{fsize=I.FP64,src=I.FDirect _,dst=I.FPR _, ...} => true
65             | I.FMOVE{fsize=I.FP64,src=I.FDirect _,dst=I.FDirect _, ...} => true
66             | _ => false
67          (*esac*))
68        | isMemMove _ = false
69    
70    
71      fun memMove(I.INSTR(i)) =
72          (case i
73            of I.MOVE{src=I.Direct rs, dst=I.MemReg rd, ...} => ([rd], [rs])
74             | I.MOVE{src=I.MemReg rs, dst=I.Direct rd, ...} => ([rd], [rs])
75             | I.FMOVE{src=I.FPR rs, dst=I.FPR rd, ...} => ([rd], [rs])
76             | I.FMOVE{src=I.FDirect rs, dst=I.FPR rd, ...} => ([rd], [rs])
77             | I.FMOVE{src=I.FPR rs, dst=I.FDirect rd, ...} => ([rd], [rs])
78             | I.FMOVE{src=I.FDirect rs, dst=I.FDirect rd, ...} => ([rd], [rs])
79             |  _ => error "memMove: INSTR"
80          (*esac*))
81        | memMove _ = error "memMove"
82    
83    fun moveInstr(I.COPY _) = true      val nop = fn () => I.nop
     | moveInstr(I.FCOPY _) = true  
     | moveInstr(I.MOVE{mvOp=I.MOVL, src=I.Direct _, dst=I.MemReg _, ...}) = true  
     | moveInstr(I.MOVE{mvOp=I.MOVL, src=I.MemReg _, dst=I.Direct _, ...}) = true  
     | moveInstr(I.ANNOTATION{i,...}) = moveInstr i  
     | moveInstr _ = false  
   
   val nop = fn () => I.NOP  
84    
85    
86   (*========================================================================   (*========================================================================
87    *  Parallel Move    *  Parallel Move
88    *========================================================================*)    *========================================================================*)
89    fun moveTmpR(I.COPY{tmp=SOME(I.Direct r), ...}) = SOME r    fun moveTmpR(I.ANNOTATION{i,...}) = moveTmpR i
90      | moveTmpR(I.FCOPY{tmp=SOME(I.FDirect f), ...}) = SOME f      | moveTmpR(I.COPY{k=CB.GP, tmp=SOME(I.Direct r), ...}) = SOME r
91      | moveTmpR(I.ANNOTATION{i,...}) = moveTmpR i      | moveTmpR(I.COPY{k=CB.FP, tmp=SOME(I.FDirect f), ...}) = SOME f
92        | moveTmpR(I.COPY{k=CB.FP, tmp=SOME(I.FPR f), ...}) = SOME f
93      | moveTmpR _ = NONE      | moveTmpR _ = NONE
94    
95    fun moveDstSrc(I.COPY{src, dst, ...}) = (dst, src)    fun moveDstSrc(I.ANNOTATION{i,...}) = moveDstSrc i
96      | moveDstSrc(I.FCOPY{src, dst, ...}) = (dst, src)      | moveDstSrc(I.COPY{src, dst, ...}) = (dst, src)
97      | moveDstSrc(I.MOVE{src=I.Direct rs, dst=I.MemReg rd, ...}) = ([rd], [rs])      | moveDstSrc(I.INSTR i) =
98      | moveDstSrc(I.MOVE{src=I.MemReg rs, dst=I.Direct rd, ...}) = ([rd], [rs])        (case i
99      | moveDstSrc(I.ANNOTATION{i,...}) = moveDstSrc i          of I.MOVE{src=I.Direct rs, dst=I.MemReg rd, ...} => ([rd], [rs])
100      | moveDstSrc _ = error "moveDstSrc"           | I.MOVE{src=I.MemReg rs, dst=I.Direct rd, ...} => ([rd], [rs])
101             | I.FMOVE{src=I.FPR rs, dst=I.FPR rd, ...} => ([rd], [rs])
102             | I.FMOVE{src=I.FDirect rs, dst=I.FPR rd, ...} => ([rd], [rs])
103             | I.FMOVE{src=I.FPR rs, dst=I.FDirect rd, ...} => ([rd], [rs])
104             | I.FMOVE{src=I.FDirect rs, dst=I.FDirect rd, ...} => ([rd], [rs])
105             |  _ => error "moveDstSrc")
106        | moveDstSrc _ = error "moveDstSrc2"
107   (*=====================================================================   (*=====================================================================
108    *  Branches and Calls/Returns    *  Branches and Calls/Returns
109    *=====================================================================*)    *=====================================================================*)
110    fun branchTargets(I.JMP(_, [])) = [ESCAPES]    fun branchTargets(I.ANNOTATION{i,...}) = branchTargets i
111      | branchTargets(I.JMP(_, labs)) = map LABELLED labs      | branchTargets(I.INSTR i) =
112      | branchTargets(I.RET _) = [ESCAPES]        (case i
113      | branchTargets(I.JCC{opnd=I.ImmedLabel(LE.LABEL(lab)), ...}) =          of I.JMP(_, []) => [ESCAPES]
114             | I.JMP(_, labs) => map LABELLED labs
115             | I.RET _ => [ESCAPES]
116             | I.JCC{opnd=I.ImmedLabel(T.LABEL(lab)), ...} =>
117          [FALLTHROUGH, LABELLED lab]          [FALLTHROUGH, LABELLED lab]
118      | branchTargets(I.ANNOTATION{i,...}) = branchTargets i           | I.CALL{cutsTo, ...} => FALLTHROUGH :: map LABELLED cutsTo
119             | I.INTO => [ESCAPES]
120             |  _ => error "branchTargets")
121      | branchTargets _ = error "branchTargets"      | branchTargets _ = error "branchTargets"
122    
123    fun jump label = I.JMP (I.ImmedLabel(LE.LABEL label), [label])    fun jump label = I.jmp (I.ImmedLabel(T.LABEL label), [label])
124    
125    exception NotImplemented    exception NotImplemented
126    fun setTargets(I.JMP(I.ImmedLabel _,_),[l]) = jump l  
127      | setTargets(I.JMP(opnd,_),_) = error "setTargets"    fun setTargets(I.ANNOTATION{i,a},l) = I.ANNOTATION{i=setTargets(i,l),a=a}
128      | setTargets(I.JCC{cond,opnd=I.ImmedLabel _},[f,t]) =      | setTargets(I.INSTR(I.JMP(I.ImmedLabel _,_)), [l]) = jump l
129          I.JCC{cond=cond,opnd=I.ImmedLabel(LE.LABEL t)}      | setTargets(I.INSTR(I.JCC{cond,opnd=I.ImmedLabel _}),[f,t]) =
130      | setTargets(I.JCC _,_) = error "setTargets"          I.jcc{cond=cond,opnd=I.ImmedLabel(T.LABEL t)}
131      | setTargets(I.ANNOTATION{i,a},l) = I.ANNOTATION{i=setTargets(i,l),a=a}      | setTargets(i,_) = error "setTargets"
132      | setTargets(i,_) = i  
133    fun negateConditional _ = raise NotImplemented    fun negateConditional (I.ANNOTATION{i,a}, lab) =
134            I.ANNOTATION{i=negateConditional(i,lab), a=a}
135        | negateConditional (I.INSTR(I.JCC{cond,opnd=I.ImmedLabel(T.LABEL _)}), lab) =
136            let
137            val cond' = (case cond
138                   of I.EQ => I.NE
139                    | I.NE => I.EQ
140                    | I.LT => I.GE
141                    | I.LE => I.GT
142                    | I.GT => I.LE
143                    | I.GE => I.LT
144                    | I.B => I.AE
145                    | I.BE => I.A
146                    | I.A => I.BE
147                    | I.AE => I.B
148                    | I.C => I.NC
149                    | I.NC => I.C
150                    | I.P => I.NP
151                    | I.NP => I.P
152                    | I.O => I.NO
153                    | I.NO => I.O
154                  (* end case *))
155            in
156              I.INSTR(I.JCC{cond=cond', opnd=I.ImmedLabel(T.LABEL lab)})
157            end
158        | negateConditional _ = error "negateConditional"
159    
160    val immedRange={lo= ~1073741824, hi=1073741823}    val immedRange={lo= ~1073741824, hi=1073741823}
161    val toInt32 = Int32.fromLarge o Int.toLarge    val toInt32 = Int32.fromLarge o Int.toLarge
162    fun loadImmed{immed,t} =    fun loadImmed{immed,t} =
163        I.MOVE{mvOp=I.MOVL,src=I.Immed(toInt32 immed),dst=I.Direct t}        I.move{mvOp=I.MOVL,src=I.Immed(toInt32 immed),dst=I.Direct t}
164    fun loadOperand{opn,t} = I.MOVE{mvOp=I.MOVL,src=opn,dst=I.Direct t}    fun loadOperand{opn,t} = I.move{mvOp=I.MOVL,src=opn,dst=I.Direct t}
165    
166   (*=====================================================================   (*=====================================================================
167    *  Hashing and Equality on operands    *  Hashing and Equality on operands
168    *=====================================================================*)    *=====================================================================*)
169     fun hashOpn(I.Immed i) = Word.fromInt(Int32.toInt i)     fun hashOpn(I.Immed i) = Word.fromInt(Int32.toInt i)
170       | hashOpn(I.ImmedLabel le) = LE.hash le + 0w123       | hashOpn(I.ImmedLabel le) = MLTreeHash.hash le + 0w123
171       | hashOpn(I.Relative i) = Word.fromInt i + 0w1232       | hashOpn(I.Relative i) = Word.fromInt i + 0w1232
172       | hashOpn(I.LabelEA le) = LE.hash le + 0w44444       | hashOpn(I.LabelEA le) = MLTreeHash.hash le + 0w44444
173       | hashOpn(I.Direct r)  = Word.fromInt r       | hashOpn(I.Direct r)  = CB.hashCell r
174       | hashOpn(I.MemReg r)  = Word.fromInt r + 0w2123       | hashOpn(I.MemReg r)  = CB.hashCell r + 0w2123
175       | hashOpn(I.ST f) = Word.fromInt f + 0w88       | hashOpn(I.ST f) = CB.hashCell f + 0w88
176       | hashOpn(I.FDirect f) = Word.fromInt f + 0w8888       | hashOpn(I.FPR f) = CB.hashCell f + 0w881
177         | hashOpn(I.FDirect f) = CB.hashCell f + 0w31245
178       | hashOpn(I.Displace {base, disp, ...}) =       | hashOpn(I.Displace {base, disp, ...}) =
179           hashOpn disp + Word.fromInt base           hashOpn disp + CB.hashCell base
180       | hashOpn(I.Indexed {base, index, scale, disp, ...}) =       | hashOpn(I.Indexed {base, index, scale, disp, ...}) =
181           Word.fromInt index + Word.fromInt scale + hashOpn disp           CB.hashCell index + Word.fromInt scale + hashOpn disp
182     fun eqOpn(I.Immed a,I.Immed b) = a = b     fun eqOpn(I.Immed a,I.Immed b) = a = b
183       | eqOpn(I.ImmedLabel a,I.ImmedLabel b) = LE.==(a,b)       | eqOpn(I.ImmedLabel a,I.ImmedLabel b) = MLTreeEval.==(a,b)
184       | eqOpn(I.Relative a,I.Relative b) = a = b       | eqOpn(I.Relative a,I.Relative b) = a = b
185       | eqOpn(I.LabelEA a,I.LabelEA b) = LE.==(a,b)       | eqOpn(I.LabelEA a,I.LabelEA b) = MLTreeEval.==(a,b)
186       | eqOpn(I.Direct a,I.Direct b) = a = b       | eqOpn(I.Direct a,I.Direct b) = CB.sameColor(a,b)
187       | eqOpn(I.MemReg a,I.MemReg b) = a = b       | eqOpn(I.MemReg a,I.MemReg b) = CB.sameColor(a,b)
188       | eqOpn(I.ST a,I.ST b) = a = b       | eqOpn(I.FDirect a,I.FDirect b) = CB.sameColor(a,b)
189       | eqOpn(I.FDirect a,I.FDirect b) = a = b       | eqOpn(I.ST a,I.ST b) = CB.sameColor(a,b)
190         | eqOpn(I.FPR a,I.FPR b) = CB.sameColor(a,b)
191       | eqOpn(I.Displace{base=a,disp=b,...},I.Displace{base=c,disp=d,...}) =       | eqOpn(I.Displace{base=a,disp=b,...},I.Displace{base=c,disp=d,...}) =
192            a = c andalso eqOpn(b,d)            CB.sameColor(a,c) andalso eqOpn(b,d)
193       | eqOpn(I.Indexed{base=a,index=b,scale=c,disp=d,...},       | eqOpn(I.Indexed{base=a,index=b,scale=c,disp=d,...},
194               I.Indexed{base=e,index=f,scale=g,disp=h,...}) =               I.Indexed{base=e,index=f,scale=g,disp=h,...}) =
195            b = f andalso c = g andalso a = e andalso eqOpn(d,h)            CB.sameColor(b,f) andalso c = g
196              andalso sameCellOption(a,e) andalso eqOpn(d,h)
197       | eqOpn _ = false       | eqOpn _ = false
198       and sameCellOption(NONE, NONE) = true
199         | sameCellOption(SOME x, SOME y) = CB.sameColor(x,y)
200         | sameCellOption _ = false
201    
202   (*========================================================================   (*========================================================================
203    *  Definition and use (for register allocation mainly)    *  Definition and use (for register allocation mainly)
# Line 129  Line 212 
212        | operandAcc(I.Indexed{base=NONE, index, ...}, acc) = index::acc        | operandAcc(I.Indexed{base=NONE, index, ...}, acc) = index::acc
213        | operandAcc(_, acc) = acc        | operandAcc(_, acc) = acc
214    
215        fun x86DefUseR instr = let
216      fun operandUse opnd = operandAcc(opnd, [])      fun operandUse opnd = operandAcc(opnd, [])
217    
218          fun operandUse2(src1, src2) = ([], operandAcc(src1, operandUse src2))
219          fun operandUse3(x, y, z) = ([], operandAcc(x, operandAcc(y, operandUse y)))
220    
221      fun operandDef(I.Direct r) = [r]      fun operandDef(I.Direct r) = [r]
222        | operandDef(I.MemReg r) = [r]        | operandDef(I.MemReg r) = [r]
223        | operandDef _ = []        | operandDef _ = []
# Line 139  Line 226 
226        val uses = operandUse src        val uses = operandUse src
227      in      in
228        case multDivOp        case multDivOp
229         of (I.IDIVL | I.DIVL) => (eaxPair, C.edx::C.eax::uses)           of (I.IDIVL1 | I.DIVL1) => (eaxPair, C.edx::C.eax::uses)
230          | I.MULL => (eaxPair, C.eax::uses)            | I.MULL1 => (eaxPair, C.eax::uses)
231      end      end
232    
233      fun unary opnd = (operandDef opnd, operandUse opnd)      fun unary opnd = (operandDef opnd, operandUse opnd)
234      fun cmptest{lsrc, rsrc} = ([], operandAcc(lsrc, operandUse rsrc))      fun cmptest{lsrc, rsrc} = ([], operandAcc(lsrc, operandUse rsrc))
235          fun espOnly()  = let val sp = [C.stackptrR] in (sp, sp) end
236      fun push arg = ([C.stackptrR], operandAcc(arg, [C.stackptrR]))      fun push arg = ([C.stackptrR], operandAcc(arg, [C.stackptrR]))
237      fun float opnd = ([], operandUse opnd)      fun float opnd = ([], operandUse opnd)
238    in    in
239      case instr      case instr
240       of I.JMP(opnd, _)        => ([], operandUse opnd)       of I.JMP(opnd, _)        => ([], operandUse opnd)
241        | I.JCC{opnd, ...}      => ([], operandUse opnd)        | I.JCC{opnd, ...}      => ([], operandUse opnd)
242        | I.CALL(opnd,defs,uses,_)=> (#1 defs, operandAcc(opnd, #1 uses))          | I.CALL{opnd,defs,uses,...} =>
243                 (C.getReg defs, operandAcc(opnd, C.getReg uses))
244        | I.MOVE{src, dst=I.Direct r, ...} => ([r], operandUse src)        | I.MOVE{src, dst=I.Direct r, ...} => ([r], operandUse src)
245        | I.MOVE{src, dst=I.MemReg r, ...} => ([r], operandUse src)        | I.MOVE{src, dst=I.MemReg r, ...} => ([r], operandUse src)
246        | I.MOVE{src, dst, ...} => ([], operandAcc(dst, operandUse src))        | I.MOVE{src, dst, ...} => ([], operandAcc(dst, operandUse src))
# Line 160  Line 249 
249          | I.TESTL arg | I.TESTW arg | I.TESTB arg ) => cmptest arg          | I.TESTL arg | I.TESTW arg | I.TESTB arg ) => cmptest arg
250        | I.BITOP{lsrc, rsrc, ...} => cmptest{lsrc=lsrc,rsrc=rsrc}        | I.BITOP{lsrc, rsrc, ...} => cmptest{lsrc=lsrc,rsrc=rsrc}
251        | I.BINARY{binOp=I.XORL,src=I.Direct rs,dst=I.Direct rd,...} =>        | I.BINARY{binOp=I.XORL,src=I.Direct rs,dst=I.Direct rd,...} =>
252             if rs=rd then ([rd],[]) else ([rd],[rs,rd])               if CB.sameColor(rs,rd) then ([rd],[]) else ([rd],[rs,rd])
253        | I.BINARY{src,dst,...} =>        | I.BINARY{src,dst,...} =>
254             (operandDef dst, operandAcc(src, operandUse dst))             (operandDef dst, operandAcc(src, operandUse dst))
255            | I.CMPXCHG{src, dst, ...} =>
256                 (C.eax::operandDef dst, C.eax::operandAcc(src, operandUse dst))
257        | I.ENTER _             => ([C.esp, C.ebp], [C.esp, C.ebp])        | I.ENTER _             => ([C.esp, C.ebp], [C.esp, C.ebp])
258        | I.LEAVE               => ([C.esp, C.ebp], [C.esp, C.ebp])        | I.LEAVE               => ([C.esp, C.ebp], [C.esp, C.ebp])
259        | I.MULTDIV arg         => multdiv arg        | I.MULTDIV arg         => multdiv arg
260        | I.MUL3{src1, src2=SOME _, dst}=> ([dst], operandUse src1)          | I.MUL3{src1, dst, ...}=> ([dst], operandUse src1)
       | I.MUL3{src1, dst, ...}=> ([dst], dst::operandUse src1)  
261    
262        | I.UNARY{opnd, ...}    => unary opnd        | I.UNARY{opnd, ...}    => unary opnd
263        | I.SET{opnd, ...}      => unary opnd        | I.SET{opnd, ...}      => unary opnd
264        | ( I.PUSHL arg | I.PUSHW arg | I.PUSHB arg ) => push arg        | ( I.PUSHL arg | I.PUSHW arg | I.PUSHB arg ) => push arg
265        | I.POP arg             => (C.stackptrR::operandDef arg, [C.stackptrR])        | I.POP arg             => (C.stackptrR::operandDef arg, [C.stackptrR])
266            | I.PUSHFD            => espOnly()
267            | I.POPFD                     => espOnly()
268        | I.CDQ                 => ([C.edx], [C.eax])        | I.CDQ                 => ([C.edx], [C.eax])
   
       | I.COPY{dst, src, tmp=SOME(I.Direct r), ...}   => (r::dst, src)  
       | I.COPY{dst, src, ...} => (dst, src)  
269        | I.FSTPT opnd          => float opnd        | I.FSTPT opnd          => float opnd
270        | I.FSTPL opnd          => float opnd        | I.FSTPL opnd          => float opnd
271        | I.FSTPS opnd          => float opnd        | I.FSTPS opnd          => float opnd
# Line 191  Line 280 
280        | I.FIBINARY{src, ...}  => ([], operandUse src)        | I.FIBINARY{src, ...}  => ([], operandUse src)
281        | I.FENV{opnd, ...}     => ([], operandUse opnd)        | I.FENV{opnd, ...}     => ([], operandUse opnd)
282        | I.FNSTSW              => ([C.eax], [])        | I.FNSTSW              => ([C.eax], [])
283            | I.FUCOM opnd          => float opnd
284            | I.FUCOMP opnd         => float opnd
285    
286            | I.FMOVE{src, dst, ...} => operandUse2(src, dst)
287            | I.FILOAD{ea, dst, ...} => operandUse2(ea, dst)
288            | I.FCMP{lsrc, rsrc, ...} => operandUse2(lsrc, rsrc)
289            | I.FBINOP{lsrc, rsrc, dst, ...} => operandUse3(lsrc, rsrc, dst)
290            | I.FIBINOP{lsrc, rsrc, dst, ...} => operandUse3(lsrc, rsrc, dst)
291            | I.FUNOP{src, dst, ...} => operandUse2(src, dst)
292    
293        | I.SAHF                => ([], [C.eax])        | I.SAHF                => ([], [C.eax])
294            | I.LAHF                      => ([C.eax], [])
295          (* This sets the low order byte,          (* This sets the low order byte,
296           * do potentially it may define *and* use           * do potentially it may define *and* use
297           *)           *)
298        | I.CMOV{src,dst,...} => ([dst], operandAcc(src, [dst]))        | I.CMOV{src,dst,...} => ([dst], operandAcc(src, [dst]))
       | I.ANNOTATION{a=C.DEF_USE{cellkind=C.GP,defs,uses}, i, ...} =>  
         let val (d,u) = defUseR i in (defs@d, u@uses) end  
       | I.ANNOTATION{a, i, ...} => defUseR i  
299        | _                     => ([], [])        | _                     => ([], [])
300    end (* defUseR *)      end
301      in
302          case instr
303           of I.ANNOTATION{i, ...} => defUseR i
304            | I.LIVE{regs, ...} => ([], C.getReg regs)
305            | I.KILL{regs, ...} => (C.getReg regs, [])
306            | I.COPY{k=CB.GP, dst, src, tmp, ...} =>
307              (case tmp
308                of NONE => (dst, src)
309                 | SOME(I.Direct r) => (r::dst, src)
310                 | SOME(I.MemReg r) => (r::dst, src)
311                 | SOME(ea) => (dst, operandAcc(ea, src))
312              (*esac*))
313            | I.COPY _ => ([], [])
314            | I.INSTR i  => x86DefUseR(i)
315      end
316    
317    fun defUseF instr = let    fun defUseF instr = let
318    
319        fun x86DefUseF instr = let
320      fun operand(I.FDirect f) = [f]      fun operand(I.FDirect f) = [f]
321            | operand(I.FPR f) = [f]
322        | operand _ = []        | operand _ = []
323    
324          fun operandAcc(I.FDirect f, acc) = f::acc
325            | operandAcc(I.FPR f, acc) = f::acc
326            | operandAcc(_ , acc) = acc
327    
328          fun fbinop(lsrc, rsrc, dst) =
329          let val def = operand dst
330              val use = operandAcc(lsrc, operand rsrc)
331          in  (def, use)
332          end
333    
334          val fcmpTmp = [C.ST 0]
335    
336    in    in
337      case instr      case instr
338       of I.FSTPT opnd            => (operand opnd, [])       of I.FSTPT opnd            => (operand opnd, [])
# Line 215  Line 343 
343        | I.FLDT opnd             => ([], operand opnd)        | I.FLDT opnd             => ([], operand opnd)
344        | I.FLDL opnd             => ([], operand opnd)        | I.FLDL opnd             => ([], operand opnd)
345        | I.FLDS opnd             => ([], operand opnd)        | I.FLDS opnd             => ([], operand opnd)
346        | I.CALL(_, defs, uses,_) => (#2 defs, #2 uses)          | I.FUCOM opnd            => ([], operand opnd)
347            | I.FUCOMP opnd           => ([], operand opnd)
348            | I.CALL{defs, uses, ...}       => (C.getFreg defs, C.getFreg uses)
349        | I.FBINARY{dst, src, ...}=> (operand dst, operand dst @ operand src)        | I.FBINARY{dst, src, ...}=> (operand dst, operand dst @ operand src)
350        | I.FCOPY{dst, src, tmp=SOME(I.FDirect f), ...}  => (f::dst, src)  
351        | I.FCOPY{dst, src, ...}  => (dst, src)          | I.FMOVE{src, dst, ...} => (operand dst, operand src)
352        | I.ANNOTATION{a=C.DEF_USE{cellkind=C.FP,defs,uses}, i, ...} =>          | I.FILOAD{ea, dst, ...} => (operand dst, [])
353          let val (d,u) = defUseF i in (defs@d, u@uses) end          | I.FCMP{lsrc, rsrc, ...} => (fcmpTmp, operandAcc(lsrc, operand rsrc))
354        | I.ANNOTATION{a, i, ...} => defUseF i          | I.FBINOP{lsrc, rsrc, dst, ...} => fbinop(lsrc, rsrc, dst)
355            | I.FIBINOP{lsrc, rsrc, dst, ...} => fbinop(lsrc, rsrc, dst)
356            | I.FUNOP{src, dst, ...} => (operand dst, operand src)
357        | _  => ([], [])        | _  => ([], [])
358    end    end
359      in
360         case instr
361         of (I.ANNOTATION{i, ...}) => defUseF(i)
362          | I.LIVE{regs, ...} => ([], C.getFreg regs)
363          | I.KILL{regs, ...} => (C.getFreg regs, [])
364          | I.COPY{k=CB.FP, dst, src, tmp, ...} =>
365            (case tmp
366              of NONE => (dst, src)
367               | SOME(I.FDirect f) => (f::dst, src)
368               | SOME(I.FPR f) => (f::dst, src)
369               | _ => (dst, src)
370            (*esac*))
371          | I.COPY _  => ([], [])
372          | (I.INSTR i) => x86DefUseF(i)
373      end
374    
375    fun defUse C.GP = defUseR    fun defUse CB.GP = defUseR
376      | defUse C.FP = defUseF      | defUse CB.FP = defUseF
377      | defUse _ = error "defUse"      | defUse _ = error "defUse"
378    
379    (*========================================================================    (*========================================================================
# Line 235  Line 382 
382    fun getAnnotations(I.ANNOTATION{i,a}) =    fun getAnnotations(I.ANNOTATION{i,a}) =
383         let val (i,an) = getAnnotations i in (i,a::an) end         let val (i,an) = getAnnotations i in (i,a::an) end
384      | getAnnotations i = (i,[])      | getAnnotations i = (i,[])
385    
386    fun annotate(i,a) = I.ANNOTATION{i=i,a=a}    fun annotate(i,a) = I.ANNOTATION{i=i,a=a}
387    
388    (*========================================================================    (*========================================================================
389     *  Replicate an instruction     *  Replicate an instruction
390     *========================================================================*)     *========================================================================*)
391    fun replicate(I.ANNOTATION{i,a}) = I.ANNOTATION{i=replicate i,a=a}    fun replicate(I.ANNOTATION{i,a}) = I.ANNOTATION{i=replicate i,a=a}
392    (*
393      | replicate(I.COPY{tmp=SOME _, dst, src}) =      | replicate(I.COPY{tmp=SOME _, dst, src}) =
394          I.COPY{tmp=SOME(I.Direct(C.newReg())), dst=dst, src=src}          I.COPY{tmp=SOME(I.Direct(C.newReg())), dst=dst, src=src}
395      | replicate(I.FCOPY{tmp=SOME _, dst, src}) =      | replicate(I.FCOPY{tmp=SOME _, dst, src}) =
396          I.FCOPY{tmp=SOME(I.FDirect(C.newFreg())), dst=dst, src=src}          I.FCOPY{tmp=SOME(I.FDirect(C.newFreg())), dst=dst, src=src}
397    *)
398      | replicate i = i      | replicate i = i
399  end  end
400    

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