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

mod.rs 12.4 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
lazy_static! {
qinsoon's avatar
qinsoon committed
178
179
180
181
    pub static ref RETURN_GPRs : [P<Value>; 2] = [
        RAX.clone(),
        RDX.clone(),
    ];
182

qinsoon's avatar
qinsoon committed
183
184
185
186
187
188
189
190
    pub static ref ARGUMENT_GPRs : [P<Value>; 6] = [
        RDI.clone(),
        RSI.clone(),
        RDX.clone(),
        RCX.clone(),
        R8.clone(),
        R9.clone()
    ];
191

qinsoon's avatar
qinsoon committed
192
193
194
195
196
197
198
199
    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
200
201
202
203
204
205
206
207
208
209
210
211

    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()
    ];
212

qinsoon's avatar
qinsoon committed
213
    static ref ALL_GPRs : [P<Value>; 15] = [
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
        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
231
232
}

qinsoon's avatar
qinsoon committed
233
234
pub const FPR_ID_START : usize = 100;

qinsoon's avatar
qinsoon committed
235
lazy_static!{
qinsoon's avatar
qinsoon committed
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
    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");
252

qinsoon's avatar
qinsoon committed
253
254
255
256
    pub static ref RETURN_FPRs : [P<Value>; 2] = [
        XMM0.clone(),
        XMM1.clone()
    ];
257

qinsoon's avatar
qinsoon committed
258
259
260
    pub static ref ARGUMENT_FPRs : [P<Value>; 8] = [
        XMM0.clone(),
        XMM1.clone(),
qinsoon's avatar
qinsoon committed
261
262
263
264
265
266
267
        XMM2.clone(),
        XMM3.clone(),
        XMM4.clone(),
        XMM5.clone(),
        XMM6.clone(),
        XMM7.clone()
    ];
268

qinsoon's avatar
qinsoon committed
269
    pub static ref CALLEE_SAVED_FPRs : [P<Value>; 0] = [];
qinsoon's avatar
qinsoon committed
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288

    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(),
    ];
289

qinsoon's avatar
qinsoon committed
290
    static ref ALL_FPRs : [P<Value>; 16] = [
qinsoon's avatar
qinsoon committed
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
        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
308
309
}

qinsoon's avatar
qinsoon committed
310
lazy_static! {
311
    pub static ref ALL_MACHINE_REGs : HashMap<MuID, P<Value>> = {
312
        let mut map = HashMap::new();
qinsoon's avatar
qinsoon committed
313
314
315
316
317
318
319

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

320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
        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
    };
339

340
341
342
343
344
345
346
347
348
349
350
    // 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(),
351

352
353
354
355
356
        RBX.clone(),
        R12.clone(),
        R13.clone(),
        R14.clone(),
        R15.clone(),
357

358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
        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
375
376
}

qinsoon's avatar
qinsoon committed
377
pub fn init_machine_regs_for_func (func_context: &mut FunctionContext) {
378
    for reg in ALL_MACHINE_REGs.values() {
qinsoon's avatar
qinsoon committed
379
        let reg_id = reg.extract_ssa_id().unwrap();
qinsoon's avatar
qinsoon committed
380
        let entry = SSAVarEntry::new(reg.clone());
381

qinsoon's avatar
qinsoon committed
382
383
384
385
386
387
        func_context.values.insert(reg_id, entry);
    }
}

pub fn number_of_regs_in_group(group: RegGroup) -> usize {
    match group {
388
389
        RegGroup::GPR => ALL_GPRs.len(),
        RegGroup::FPR => ALL_FPRs.len()
qinsoon's avatar
qinsoon committed
390
391
392
    }
}

qinsoon's avatar
qinsoon committed
393
394
395
396
pub fn number_of_all_regs() -> usize {
    ALL_MACHINE_REGs.len()
}

397
pub fn all_regs() -> &'static HashMap<MuID, P<Value>> {
qinsoon's avatar
qinsoon committed
398
399
400
    &ALL_MACHINE_REGs
}

401
402
403
404
pub fn all_usable_regs() -> &'static Vec<P<Value>> {
    &ALL_USABLE_MACHINE_REGs
}

405
pub fn pick_group_for_reg(reg_id: MuID) -> RegGroup {
406
    let reg = all_regs().get(&reg_id).unwrap();
407
408
409
410
411
412
413
    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)
    }
414
415
}

416
417
418
419
420
421
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;
        }
    }
422
423

    false
424
425
}

426
pub fn is_valid_x86_imm(op: &P<Value>) -> bool {
427
    use std::i32;
qinsoon's avatar
qinsoon committed
428
    match op.v {
429
        Value_::Constant(Constant::Int(val)) if val <= i32::MAX as u64 => {
qinsoon's avatar
qinsoon committed
430
431
            true
        },
432
433
        _ => false
    }
434
}