To protect your data, the CISO officer has suggested users to enable GitLab 2FA as soon as possible.

mod.rs 12.7 KB
Newer Older
qinsoon's avatar
qinsoon committed
1
2
3
#![allow(dead_code)]
#![allow(non_upper_case_globals)]

4
5
6
7
8
9
10
pub mod inst_sel;

mod codegen;
pub use compiler::backend::x86_64::codegen::CodeGenerator;

mod asm_backend;
pub use compiler::backend::x86_64::asm_backend::ASMCodeGen;
11
12
pub use compiler::backend::x86_64::asm_backend::emit_code;
pub use compiler::backend::x86_64::asm_backend::emit_context;
13
14
#[cfg(feature = "aot")]
pub use compiler::backend::x86_64::asm_backend::spill_rewrite;
15
16
17

use ast::ptr::P;
use ast::ir::*;
qinsoon's avatar
qinsoon committed
18
use ast::types::*;
qinsoon's avatar
qinsoon committed
19
use compiler::backend::RegGroup;
qinsoon's avatar
qinsoon committed
20

21
22
use std::collections::HashMap;

qinsoon's avatar
qinsoon committed
23
macro_rules! GPR_ALIAS {
qinsoon's avatar
qinsoon committed
24
25
26
27
28
29
30
31
32
33
34
35
    ($alias: ident: ($id64: expr, $r64: ident) -> $r32: ident, $r16: ident, $r8l: ident, $r8h: ident) => {
        lazy_static!{
            pub static ref $r64 : P<Value> = GPR!($id64,    stringify!($r64), UINT64_TYPE);
            pub static ref $r32 : P<Value> = GPR!($id64 +1, stringify!($r32), UINT32_TYPE);
            pub static ref $r16 : P<Value> = GPR!($id64 +2, stringify!($r16), UINT16_TYPE);
            pub static ref $r8l : P<Value> = GPR!($id64 +3, stringify!($r8l), UINT8_TYPE);
            pub static ref $r8h : P<Value> = GPR!($id64 +4, stringify!($r8h), UINT8_TYPE);

            pub static ref $alias : [P<Value>; 5] = [$r64.clone(), $r32.clone(), $r16.clone(), $r8l.clone(), $r8h.clone()];
        }
    };

qinsoon's avatar
qinsoon committed
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
    ($alias: ident: ($id64: expr, $r64: ident) -> $r32: ident, $r16: ident, $r8: ident) => {
        lazy_static!{
            pub static ref $r64 : P<Value> = GPR!($id64,    stringify!($r64), UINT64_TYPE);
            pub static ref $r32 : P<Value> = GPR!($id64 +1, stringify!($r32), UINT32_TYPE);
            pub static ref $r16 : P<Value> = GPR!($id64 +2, stringify!($r16), UINT16_TYPE);
            pub static ref $r8  : P<Value> = GPR!($id64 +3, stringify!($r8) , UINT8_TYPE );

            pub static ref $alias : [P<Value>; 4] = [$r64.clone(), $r32.clone(), $r16.clone(), $r8.clone()];
        }
    };

    ($alias: ident: ($id64: expr, $r64: ident)) => {
        lazy_static!{
            pub static ref $r64 : P<Value> = GPR!($id64,    stringify!($r64), UINT64_TYPE);

            pub static ref $alias : [P<Value>; 4] = [$r64.clone(), $r64.clone(), $r64.clone(), $r64.clone()];
        }
    };
}

56
macro_rules! GPR {
qinsoon's avatar
qinsoon committed
57
    ($id:expr, $name: expr, $ty: ident) => {
qinsoon's avatar
qinsoon committed
58
59
        {
            P(Value {
qinsoon's avatar
qinsoon committed
60
                hdr: MuEntityHeader::named($id, $name.to_string()),
qinsoon's avatar
qinsoon committed
61
                ty: $ty.clone(),
qinsoon's avatar
qinsoon committed
62
                v: Value_::SSAVar($id)
qinsoon's avatar
qinsoon committed
63
64
            })
        }
qinsoon's avatar
qinsoon committed
65
66
67
68
    };
}

macro_rules! FPR {
qinsoon's avatar
qinsoon committed
69
    ($id:expr, $name: expr) => {
qinsoon's avatar
qinsoon committed
70
71
        {
            P(Value {
qinsoon's avatar
qinsoon committed
72
                hdr: MuEntityHeader::named($id, $name.to_string()),
qinsoon's avatar
qinsoon committed
73
                ty: DOUBLE_TYPE.clone(),
qinsoon's avatar
qinsoon committed
74
                v: Value_::SSAVar($id)
qinsoon's avatar
qinsoon committed
75
76
            })
        }
qinsoon's avatar
qinsoon committed
77
78
79
    };
}

qinsoon's avatar
qinsoon committed
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
GPR_ALIAS!(RAX_ALIAS: (0, RAX)  -> EAX, AX , AL, AH);
GPR_ALIAS!(RCX_ALIAS: (5, RCX)  -> ECX, CX , CL, CH);
GPR_ALIAS!(RDX_ALIAS: (10, RDX)  -> EDX, DX , DL, DH);
GPR_ALIAS!(RBX_ALIAS: (15,RBX)  -> EBX, BX , BL, BH);
GPR_ALIAS!(RSP_ALIAS: (20,RSP)  -> ESP, SP , SPL);
GPR_ALIAS!(RBP_ALIAS: (24,RBP)  -> EBP, BP , BPL);
GPR_ALIAS!(RSI_ALIAS: (28,RSI)  -> ESI, SI , SIL);
GPR_ALIAS!(RDI_ALIAS: (32,RDI)  -> EDI, DI , DIL);
GPR_ALIAS!(R8_ALIAS : (36,R8 )  -> R8D, R8W, R8B);
GPR_ALIAS!(R9_ALIAS : (40,R9 )  -> R9D, R9W, R9B);
GPR_ALIAS!(R10_ALIAS: (44,R10) -> R10D,R10W,R10B);
GPR_ALIAS!(R11_ALIAS: (48,R11) -> R11D,R11W,R11B);
GPR_ALIAS!(R12_ALIAS: (52,R12) -> R12D,R12W,R12B);
GPR_ALIAS!(R13_ALIAS: (56,R13) -> R13D,R13W,R13B);
GPR_ALIAS!(R14_ALIAS: (60,R14) -> R14D,R14W,R14B);
GPR_ALIAS!(R15_ALIAS: (64,R15) -> R15D,R15W,R15B);
GPR_ALIAS!(RIP_ALIAS: (68,RIP));
qinsoon's avatar
qinsoon committed
97

qinsoon's avatar
qinsoon committed
98
lazy_static! {
qinsoon's avatar
qinsoon committed
99
    pub static ref GPR_ALIAS_TABLE : HashMap<MuID, Vec<P<Value>>> = {
qinsoon's avatar
qinsoon committed
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
        let mut ret = HashMap::new();

        ret.insert(RAX.id(), RAX_ALIAS.to_vec());
        ret.insert(RCX.id(), RCX_ALIAS.to_vec());
        ret.insert(RDX.id(), RDX_ALIAS.to_vec());
        ret.insert(RBX.id(), RBX_ALIAS.to_vec());
        ret.insert(RSP.id(), RSP_ALIAS.to_vec());
        ret.insert(RBP.id(), RBP_ALIAS.to_vec());
        ret.insert(RSI.id(), RSI_ALIAS.to_vec());
        ret.insert(RDI.id(), RDI_ALIAS.to_vec());
        ret.insert(R8.id() , R8_ALIAS.to_vec() );
        ret.insert(R9.id() , R9_ALIAS.to_vec() );
        ret.insert(R10.id(), R10_ALIAS.to_vec());
        ret.insert(R11.id(), R11_ALIAS.to_vec());
        ret.insert(R12.id(), R12_ALIAS.to_vec());
        ret.insert(R13.id(), R13_ALIAS.to_vec());
        ret.insert(R14.id(), R14_ALIAS.to_vec());
        ret.insert(R15.id(), R15_ALIAS.to_vec());
        ret.insert(RIP.id(), RIP_ALIAS.to_vec());

        ret
    };

qinsoon's avatar
qinsoon committed
123
124
125
126
127
128
129
130
131
132
133
134
135
    // e.g. given eax, return rax
    pub static ref GPR_ALIAS_LOOKUP : HashMap<MuID, P<Value>> = {
        let mut ret = HashMap::new();

        for vec in GPR_ALIAS_TABLE.values() {
            let colorable = vec[0].clone();

            for gpr in vec {
                ret.insert(gpr.id(), colorable.clone());
            }
        }

        ret
qinsoon's avatar
qinsoon committed
136
    };
qinsoon's avatar
qinsoon committed
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
}

pub fn get_alias_for_length(id: MuID, length: usize) -> P<Value> {
    if id < FPR_ID_START {
        let vec = match GPR_ALIAS_TABLE.get(&id) {
            Some(vec) => vec,
            None => panic!("didnt find {} as GPR", id)
        };

        match length {
            64 => vec[0].clone(),
            32 => vec[1].clone(),
            16 => vec[2].clone(),
            8 => vec[3].clone(),
            1 => vec[3].clone(),
            _ => panic!("unexpected length {} for {}", length, vec[0])
        }
    } else {
        for r in ALL_FPRs.iter() {
            if r.id() == id {
                return r.clone();
            }
        }

        panic!("didnt find {} as FPR", id)
    }
}
qinsoon's avatar
qinsoon committed
164

qinsoon's avatar
qinsoon committed
165
166
167
168
169
170
171
172
173
pub fn get_color_for_precolroed(id: MuID) -> MuID {
    if id < FPR_ID_START {
        match GPR_ALIAS_LOOKUP.get(&id) {
            Some(val) => val.id(),
            None => panic!("cannot find GPR {}", id)
        }
    } else {
        // we do not have alias for FPRs
        id
qinsoon's avatar
qinsoon committed
174
175
    }
}
qinsoon's avatar
qinsoon committed
176

qinsoon's avatar
qinsoon committed
177
178
179
180
181
182
183
184
185
186
187
188
#[inline(always)]
pub fn check_op_len(op: &P<Value>) -> usize {
    match op.ty.get_int_length() {
        Some(64) => 64,
        Some(32) => 32,
        Some(16) => 16,
        Some(8)  => 8,
        Some(1)  => 8,
        _ => panic!("unimplemented int types: {}", op.ty)
    }
}

qinsoon's avatar
qinsoon committed
189
lazy_static! {
qinsoon's avatar
qinsoon committed
190
191
192
193
    pub static ref RETURN_GPRs : [P<Value>; 2] = [
        RAX.clone(),
        RDX.clone(),
    ];
194

qinsoon's avatar
qinsoon committed
195
196
197
198
199
200
201
202
    pub static ref ARGUMENT_GPRs : [P<Value>; 6] = [
        RDI.clone(),
        RSI.clone(),
        RDX.clone(),
        RCX.clone(),
        R8.clone(),
        R9.clone()
    ];
203

qinsoon's avatar
qinsoon committed
204
205
206
207
208
209
210
211
    pub static ref CALLEE_SAVED_GPRs : [P<Value>; 6] = [
        RBX.clone(),
        RBP.clone(),
        R12.clone(),
        R13.clone(),
        R14.clone(),
        R15.clone()
    ];
qinsoon's avatar
qinsoon committed
212
213
214
215
216
217
218
219
220
221
222
223

    pub static ref CALLER_SAVED_GPRs : [P<Value>; 9] = [
        RAX.clone(),
        RCX.clone(),
        RDX.clone(),
        RSI.clone(),
        RDI.clone(),
        R8.clone(),
        R9.clone(),
        R10.clone(),
        R11.clone()
    ];
224

qinsoon's avatar
qinsoon committed
225
    static ref ALL_GPRs : [P<Value>; 15] = [
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
        RAX.clone(),
        RCX.clone(),
        RDX.clone(),
        RBX.clone(),
        RSP.clone(),
//        RBP.clone(),
        RSI.clone(),
        RDI.clone(),
        R8.clone(),
        R9.clone(),
        R10.clone(),
        R11.clone(),
        R12.clone(),
        R13.clone(),
        R14.clone(),
        R15.clone()
    ];
qinsoon's avatar
qinsoon committed
243
244
}

qinsoon's avatar
qinsoon committed
245
246
pub const FPR_ID_START : usize = 100;

qinsoon's avatar
qinsoon committed
247
lazy_static!{
qinsoon's avatar
qinsoon committed
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
    pub static ref XMM0  : P<Value> = FPR!(FPR_ID_START,    "xmm0");
    pub static ref XMM1  : P<Value> = FPR!(FPR_ID_START + 1,"xmm1");
    pub static ref XMM2  : P<Value> = FPR!(FPR_ID_START + 2,"xmm2");
    pub static ref XMM3  : P<Value> = FPR!(FPR_ID_START + 3,"xmm3");
    pub static ref XMM4  : P<Value> = FPR!(FPR_ID_START + 4,"xmm4");
    pub static ref XMM5  : P<Value> = FPR!(FPR_ID_START + 5,"xmm5");
    pub static ref XMM6  : P<Value> = FPR!(FPR_ID_START + 6,"xmm6");
    pub static ref XMM7  : P<Value> = FPR!(FPR_ID_START + 7,"xmm7");
    pub static ref XMM8  : P<Value> = FPR!(FPR_ID_START + 8,"xmm8");
    pub static ref XMM9  : P<Value> = FPR!(FPR_ID_START + 9,"xmm9");
    pub static ref XMM10 : P<Value> = FPR!(FPR_ID_START + 10,"xmm10");
    pub static ref XMM11 : P<Value> = FPR!(FPR_ID_START + 11,"xmm11");
    pub static ref XMM12 : P<Value> = FPR!(FPR_ID_START + 12,"xmm12");
    pub static ref XMM13 : P<Value> = FPR!(FPR_ID_START + 13,"xmm13");
    pub static ref XMM14 : P<Value> = FPR!(FPR_ID_START + 14,"xmm14");
    pub static ref XMM15 : P<Value> = FPR!(FPR_ID_START + 15,"xmm15");
264

qinsoon's avatar
qinsoon committed
265
266
267
268
    pub static ref RETURN_FPRs : [P<Value>; 2] = [
        XMM0.clone(),
        XMM1.clone()
    ];
269

qinsoon's avatar
qinsoon committed
270
271
272
    pub static ref ARGUMENT_FPRs : [P<Value>; 8] = [
        XMM0.clone(),
        XMM1.clone(),
qinsoon's avatar
qinsoon committed
273
274
275
276
277
278
279
        XMM2.clone(),
        XMM3.clone(),
        XMM4.clone(),
        XMM5.clone(),
        XMM6.clone(),
        XMM7.clone()
    ];
280

qinsoon's avatar
qinsoon committed
281
    pub static ref CALLEE_SAVED_FPRs : [P<Value>; 0] = [];
qinsoon's avatar
qinsoon committed
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300

    pub static ref CALLER_SAVED_FPRs : [P<Value>; 16] = [
        XMM0.clone(),
        XMM1.clone(),
        XMM2.clone(),
        XMM3.clone(),
        XMM4.clone(),
        XMM5.clone(),
        XMM6.clone(),
        XMM7.clone(),
        XMM8.clone(),
        XMM9.clone(),
        XMM10.clone(),
        XMM11.clone(),
        XMM12.clone(),
        XMM13.clone(),
        XMM14.clone(),
        XMM15.clone(),
    ];
301

qinsoon's avatar
qinsoon committed
302
    static ref ALL_FPRs : [P<Value>; 16] = [
qinsoon's avatar
qinsoon committed
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
        XMM0.clone(),
        XMM1.clone(),
        XMM2.clone(),
        XMM3.clone(),
        XMM4.clone(),
        XMM5.clone(),
        XMM6.clone(),
        XMM7.clone(),
        XMM8.clone(),
        XMM9.clone(),
        XMM10.clone(),
        XMM11.clone(),
        XMM12.clone(),
        XMM13.clone(),
        XMM14.clone(),
        XMM15.clone(),
    ];
qinsoon's avatar
qinsoon committed
320
321
}

qinsoon's avatar
qinsoon committed
322
lazy_static! {
323
    pub static ref ALL_MACHINE_REGs : HashMap<MuID, P<Value>> = {
324
        let mut map = HashMap::new();
qinsoon's avatar
qinsoon committed
325
326
327
328
329
330
331

        for vec in GPR_ALIAS_TABLE.values() {
            for reg in vec {
                map.insert(reg.id(), reg.clone());
            }
        }

332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
        map.insert(XMM0.id(), XMM0.clone());
        map.insert(XMM1.id(), XMM1.clone());
        map.insert(XMM2.id(), XMM2.clone());
        map.insert(XMM3.id(), XMM3.clone());
        map.insert(XMM4.id(), XMM4.clone());
        map.insert(XMM5.id(), XMM5.clone());
        map.insert(XMM6.id(), XMM6.clone());
        map.insert(XMM7.id(), XMM7.clone());
        map.insert(XMM8.id(), XMM8.clone());
        map.insert(XMM9.id(), XMM9.clone());
        map.insert(XMM10.id(), XMM10.clone());
        map.insert(XMM11.id(), XMM11.clone());
        map.insert(XMM12.id(), XMM12.clone());
        map.insert(XMM13.id(), XMM13.clone());
        map.insert(XMM14.id(), XMM14.clone());
        map.insert(XMM15.id(), XMM15.clone());

        map
    };
351

352
353
354
355
356
357
358
359
360
361
362
    // put caller saved regs first (they imposes no overhead if there is no call instruction)
    pub static ref ALL_USABLE_MACHINE_REGs : Vec<P<Value>> = vec![
        RAX.clone(),
        RCX.clone(),
        RDX.clone(),
        RSI.clone(),
        RDI.clone(),
        R8.clone(),
        R9.clone(),
        R10.clone(),
        R11.clone(),
363

364
365
366
367
368
        RBX.clone(),
        R12.clone(),
        R13.clone(),
        R14.clone(),
        R15.clone(),
369

370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
        XMM0.clone(),
        XMM1.clone(),
        XMM2.clone(),
        XMM3.clone(),
        XMM4.clone(),
        XMM5.clone(),
        XMM6.clone(),
        XMM7.clone(),
        XMM8.clone(),
        XMM9.clone(),
        XMM10.clone(),
        XMM11.clone(),
        XMM12.clone(),
        XMM13.clone(),
        XMM14.clone(),
        XMM15.clone()
    ];
qinsoon's avatar
qinsoon committed
387
388
}

qinsoon's avatar
qinsoon committed
389
pub fn init_machine_regs_for_func (func_context: &mut FunctionContext) {
390
    for reg in ALL_MACHINE_REGs.values() {
qinsoon's avatar
qinsoon committed
391
        let reg_id = reg.extract_ssa_id().unwrap();
qinsoon's avatar
qinsoon committed
392
        let entry = SSAVarEntry::new(reg.clone());
393

qinsoon's avatar
qinsoon committed
394
395
396
397
398
399
        func_context.values.insert(reg_id, entry);
    }
}

pub fn number_of_regs_in_group(group: RegGroup) -> usize {
    match group {
400
401
        RegGroup::GPR => ALL_GPRs.len(),
        RegGroup::FPR => ALL_FPRs.len()
qinsoon's avatar
qinsoon committed
402
403
404
    }
}

qinsoon's avatar
qinsoon committed
405
406
407
408
pub fn number_of_all_regs() -> usize {
    ALL_MACHINE_REGs.len()
}

409
pub fn all_regs() -> &'static HashMap<MuID, P<Value>> {
qinsoon's avatar
qinsoon committed
410
411
412
    &ALL_MACHINE_REGs
}

413
414
415
416
pub fn all_usable_regs() -> &'static Vec<P<Value>> {
    &ALL_USABLE_MACHINE_REGs
}

417
pub fn pick_group_for_reg(reg_id: MuID) -> RegGroup {
418
    let reg = all_regs().get(&reg_id).unwrap();
419
420
421
422
423
424
425
    if reg.is_int_reg() {
        RegGroup::GPR
    } else if reg.is_fp_reg() {
        RegGroup::FPR
    } else {
        panic!("expect a machine reg to be either a GPR or a FPR: {}", reg)
    }
426
427
}

428
429
430
431
432
433
pub fn is_callee_saved(reg_id: MuID) -> bool {
    for reg in CALLEE_SAVED_GPRs.iter() {
        if reg_id == reg.extract_ssa_id().unwrap() {
            return true;
        }
    }
434
435

    false
436
437
}

438
pub fn is_valid_x86_imm(op: &P<Value>) -> bool {
439
    use std::i32;
qinsoon's avatar
qinsoon committed
440
    match op.v {
441
        Value_::Constant(Constant::Int(val)) if val <= i32::MAX as u64 => {
qinsoon's avatar
qinsoon committed
442
443
            true
        },
444
445
        _ => false
    }
446
}