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
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
|
(* Copyright (C) 2009 Matthew Fluet.
* Copyright (C) 1999-2008 Henry Cejtin, Matthew Fluet, Suresh
* Jagannathan, and Stephen Weeks.
* Copyright (C) 1997-2000 NEC Research Institute.
*
* MLton is released under a BSD-style license.
* See the file MLton-LICENSE for details.
*)
functor x86MLtonBasic (S: X86_MLTON_BASIC_STRUCTS): X86_MLTON_BASIC =
struct
open S
open x86
local
open Machine
in
structure CType = CType
structure Runtime = Runtime
end
(*
* x86.Size.t equivalents
*)
val wordBytes = Bytes.toInt Bytes.inWord32
val wordSize = Size.fromBytes wordBytes
val wordScale = Scale.fromBytes wordBytes
val pointerBytes = Bytes.toInt Bytes.inWord32
val pointerSize = Size.fromBytes pointerBytes
(*
* Memory classes
*)
structure Classes =
struct
local
fun new s = MemLoc.Class.new {name = s}
in
val Heap = new "Heap"
val Stack = new "Stack"
val Locals = new "Locals"
val Globals = new "Globals"
val Temp = MemLoc.Class.Temp
val StaticTemp = MemLoc.Class.StaticTemp
val CStack = MemLoc.Class.CStack
val Code = MemLoc.Class.Code
val CStatic = new "CStatic"
val StaticNonTemp = new "StaticNonTemp"
val GCState = new "GCState"
val GCStateHold = new "GCStateHold"
val GCStateVolatile = new "GCStateVolatile"
end
val allClasses = ref x86.ClassSet.empty
val livenessClasses = ref x86.ClassSet.empty
val holdClasses = ref x86.ClassSet.empty
val volatileClasses = ref x86.ClassSet.empty
val runtimeClasses = ref x86.ClassSet.empty
val heapClasses = ref x86.ClassSet.empty
val cstaticClasses = ref x86.ClassSet.empty
fun initClasses ()
= let
val _ = allClasses :=
x86.ClassSet.fromList
(
Heap::
Stack::
Locals::
Globals::
Temp::
StaticTemp::
CStack::
Code::
CStatic::
StaticNonTemp::
GCState::
GCStateHold::
GCStateVolatile::
nil)
val _ = livenessClasses :=
(if !Control.Native.liveStack
then x86.ClassSet.fromList
(
Temp::
Locals::
StaticTemp::
Stack::
nil)
else x86.ClassSet.fromList
(
Temp::
Locals::
StaticTemp::
nil))
val _ = holdClasses :=
x86.ClassSet.fromList
(
GCStateHold::
(*
GCStateVolatile::
*)
nil)
val _ = volatileClasses :=
x86.ClassSet.fromList
(
GCStateVolatile::
nil)
val _ = runtimeClasses :=
x86.ClassSet.fromList
(
Heap::
Stack::
Globals::
GCState::
GCStateHold::
GCStateVolatile::
nil)
val _ = heapClasses :=
x86.ClassSet.fromList
(
Heap::
nil)
val _ = cstaticClasses :=
x86.ClassSet.fromList
(
CStatic::
nil)
in
()
end
end
val makeContents = x86.MemLoc.makeContents
val c_stackP = Label.fromString "c_stackP"
val c_stackPContents
= makeContents {base = Immediate.label c_stackP,
size = pointerSize,
class = Classes.StaticNonTemp}
val c_stackPContentsOperand
= Operand.memloc c_stackPContents
val c_stackPDerefDouble
= MemLoc.simple {base = c_stackPContents,
index = Immediate.zero,
scale = wordScale,
size = Size.DBLE,
class = Classes.CStack}
val c_stackPDerefDoubleOperand
= Operand.memloc c_stackPDerefDouble
val c_stackPDerefFloat
= MemLoc.simple {base = c_stackPContents,
index = Immediate.zero,
scale = wordScale,
size = Size.SNGL,
class = Classes.CStack}
val c_stackPDerefFloatOperand
= Operand.memloc c_stackPDerefFloat
(* This is more a pseudo-location. The GOT is special and cannot
* be simply loaded. Similarly, we don't really read the contents.
*)
val globalOffsetTable = Label.fromString "_GLOBAL_OFFSET_TABLE_"
val globalOffsetTableContents
= makeContents {base = Immediate.label globalOffsetTable,
size = pointerSize,
class = Classes.StaticNonTemp}
val applyFFTempFun = Label.fromString "applyFFTempFun"
val applyFFTempFunContents
= makeContents {base = Immediate.label applyFFTempFun,
size = wordSize,
class = Classes.StaticTemp}
val applyFFTempFunContentsOperand
= Operand.memloc applyFFTempFunContents
val applyFFTempArg = Label.fromString "applyFFTempArg"
val applyFFTempArgContents
= makeContents {base = Immediate.label applyFFTempArg,
size = wordSize,
class = Classes.StaticTemp}
val applyFFTempArgContentsOperand
= Operand.memloc applyFFTempArgContents
val realTemp1D = Label.fromString "realTemp1D"
val realTemp1ContentsD
= makeContents {base = Immediate.label realTemp1D,
size = Size.DBLE,
class = Classes.StaticTemp}
val realTemp1ContentsOperandD
= Operand.memloc realTemp1ContentsD
val realTemp1S = Label.fromString "realTemp1S"
val realTemp1ContentsS
= makeContents {base = Immediate.label realTemp1S,
size = Size.SNGL,
class = Classes.StaticTemp}
val realTemp1ContentsOperandS
= Operand.memloc realTemp1ContentsS
fun realTemp1ContentsOperand floatSize
= case floatSize of
Size.DBLE => realTemp1ContentsOperandD
| Size.SNGL => realTemp1ContentsOperandS
| _ => Error.bug "x86MLtonBasic.realTemp1ContentsOperand: floatSize"
val realTemp2D = Label.fromString "realTemp2D"
val realTemp2ContentsD
= makeContents {base = Immediate.label realTemp2D,
size = Size.DBLE,
class = Classes.StaticTemp}
val realTemp2ContentsOperandD
= Operand.memloc realTemp2ContentsD
val realTemp2S = Label.fromString "realTemp2S"
val realTemp2ContentsS
= makeContents {base = Immediate.label realTemp2S,
size = Size.SNGL,
class = Classes.StaticTemp}
val realTemp2ContentsOperandS
= Operand.memloc realTemp2ContentsS
fun realTemp2ContentsOperand floatSize
= case floatSize of
Size.DBLE => realTemp2ContentsOperandD
| Size.SNGL => realTemp2ContentsOperandS
| _ => Error.bug "x86MLtonBasic.realTemp2ContentsOperand: floatSize"
val realTemp3D = Label.fromString "realTemp3D"
val realTemp3ContentsD
= makeContents {base = Immediate.label realTemp3D,
size = Size.DBLE,
class = Classes.StaticTemp}
val realTemp3ContentsOperandD
= Operand.memloc realTemp3ContentsD
val realTemp3S = Label.fromString "realTemp3S"
val realTemp3ContentsS
= makeContents {base = Immediate.label realTemp3S,
size = Size.SNGL,
class = Classes.StaticTemp}
val realTemp3ContentsOperandS
= Operand.memloc realTemp3ContentsS
fun realTemp3ContentsOperand floatSize
= case floatSize of
Size.DBLE => realTemp3ContentsOperandD
| Size.SNGL => realTemp3ContentsOperandS
| _ => Error.bug "x86MLtonBasic.realTemp3ContentsOperand: floatSize"
val fpswTemp = Label.fromString "fpswTemp"
val fpswTempContents
= makeContents {base = Immediate.label fpswTemp,
size = Size.WORD,
class = Classes.StaticTemp}
val fpswTempContentsOperand
= Operand.memloc fpswTempContents
val fildTemp = Label.fromString "fildTemp"
val fildTempContents
= makeContents {base = Immediate.label fildTemp,
size = Size.WORD,
class = Classes.StaticTemp}
val fildTempContentsOperand
= Operand.memloc fildTempContents
val wordTemp1B = Label.fromString "wordTemp1B"
val wordTemp1ContentsB
= makeContents {base = Immediate.label wordTemp1B,
size = Size.BYTE,
class = Classes.StaticTemp}
val wordTemp1ContentsOperandB
= Operand.memloc wordTemp1ContentsB
val wordTemp1W = Label.fromString "wordTemp1W"
val wordTemp1ContentsW
= makeContents {base = Immediate.label wordTemp1W,
size = Size.WORD,
class = Classes.StaticTemp}
val wordTemp1ContentsOperandW
= Operand.memloc wordTemp1ContentsW
val wordTemp1L = Label.fromString "wordTemp1L"
val wordTemp1ContentsL
= makeContents {base = Immediate.label wordTemp1L,
size = Size.LONG,
class = Classes.StaticTemp}
val wordTemp1ContentsOperandL
= Operand.memloc wordTemp1ContentsL
fun wordTemp1ContentsOperand wordSize
= case wordSize of
Size.BYTE => wordTemp1ContentsOperandB
| Size.WORD => wordTemp1ContentsOperandW
| Size.LONG => wordTemp1ContentsOperandL
| _ => Error.bug "x86MLtonBasic.wordTemp1ContentsOperand: wordSize"
local
fun make prefix =
let
fun make name size = Label.fromString (concat [prefix, name, size])
val r = make "Real"
val w = make "Word"
datatype z = datatype CType.t
in
CType.memo
(fn t =>
case t of
CPointer => Label.fromString (concat [prefix, "CPointer"])
| Int8 => w "8"
| Int16 => w "16"
| Int32 => w "32"
| Int64 => w "64"
| Objptr => Label.fromString (concat [prefix, "Objptr"])
| Real32 => r "32"
| Real64 => r "64"
| Word8 => w "8"
| Word16 => w "16"
| Word32 => w "32"
| Word64 => w "64")
end
in
val local_base = make "local"
val global_base = make "global"
end
val globalObjptrNonRoot_base = Label.fromString "globalObjptrNonRoot"
val gcState_label = Label.fromString "gcState"
structure Field = Runtime.GCField
fun make' (offset: int, size, class) =
let
fun imm () =
Immediate.labelPlusInt
(gcState_label, offset)
fun contents () =
makeContents {base = imm (),
size = size,
class = class}
fun operand () = Operand.memloc (contents ())
in
(imm, contents, operand)
end
fun make (f: Field.t, size, class) =
let
fun imm () =
Immediate.labelPlusInt
(gcState_label, Bytes.toInt (Field.offset f))
fun contents () =
makeContents {base = imm (),
size = size,
class = class}
fun operand () = Operand.memloc (contents ())
in
(imm, contents, operand)
end
val (_, gcState_exnStackContents,
gcState_exnStackContentsOperand) =
make (Field.ExnStack, wordSize, Classes.GCState)
val (_, gcState_frontierContents,
gcState_frontierContentsOperand) =
make (Field.Frontier, pointerSize, Classes.GCStateHold)
val (_, gcState_stackBottomContents,
gcState_stackBottomContentsOperand) =
make (Field.StackBottom, pointerSize, Classes.GCState)
val (_, gcState_stackTopContents,
gcState_stackTopContentsOperand) =
make (Field.StackTop, pointerSize, Classes.GCStateHold)
local
val stackTopTemp =
Immediate.label (Label.fromString "stackTopTemp")
val stackTopTempContents =
makeContents {base = stackTopTemp,
size = wordSize,
class = Classes.StaticTemp}
val stackTopTempContentsOperand =
Operand.memloc (stackTopTempContents)
in
val stackTopTempContents = fn () => stackTopTempContents
val stackTopTempContentsOperand = fn () => stackTopTempContentsOperand
end
fun gcState_stackTopMinusWordDeref () =
MemLoc.simple {base = gcState_stackTopContents (),
index = Immediate.int ~1,
scale = wordScale,
size = pointerSize,
class = Classes.Stack}
fun gcState_stackTopMinusWordDerefOperand () =
Operand.memloc (gcState_stackTopMinusWordDeref ())
fun stackTopTempMinusWordDeref () =
MemLoc.simple {base = stackTopTempContents (),
index = Immediate.int ~1,
scale = wordScale,
size = pointerSize,
class = Classes.Stack}
fun stackTopTempMinusWordDerefOperand () =
Operand.memloc (stackTopTempMinusWordDeref ())
fun gcState_offset {offset, ty} =
let
val (_,_,operand) =
make' (offset, Vector.sub(x86.Size.fromCType ty, 0), Classes.GCState)
in
operand ()
end
(* init *)
fun init () = let
val _ = Classes.initClasses ()
in
()
end
end
|
