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

mod.rs 8.93 KB
Newer Older
qinsoon's avatar
qinsoon committed
1
2
3
#![allow(dead_code)]
#![allow(non_upper_case_globals)]

4
5
6
7
pub mod inst_sel;

mod codegen;
pub use compiler::backend::x86_64::codegen::CodeGenerator;
8
pub use compiler::backend::x86_64::codegen::spill_rewrite;
9
10
11

mod asm_backend;
pub use compiler::backend::x86_64::asm_backend::ASMCodeGen;
12
13
pub use compiler::backend::x86_64::asm_backend::emit_code;
pub use compiler::backend::x86_64::asm_backend::emit_context;
14
15
16

use ast::ptr::P;
use ast::ir::*;
qinsoon's avatar
qinsoon committed
17
use ast::types::*;
qinsoon's avatar
qinsoon committed
18
use compiler::backend::RegGroup;
qinsoon's avatar
qinsoon committed
19

20
21
use std::collections::HashMap;

qinsoon's avatar
qinsoon committed
22
macro_rules! GPR {
qinsoon's avatar
qinsoon committed
23
    ($id:expr, $name: expr) => {
qinsoon's avatar
qinsoon committed
24
25
        {
            P(Value {
qinsoon's avatar
qinsoon committed
26
                hdr: MuEntityHeader::named($id, $name.to_string()),
qinsoon's avatar
qinsoon committed
27
                ty: UINT64_TYPE.clone(),
qinsoon's avatar
qinsoon committed
28
                v: Value_::SSAVar($id)
qinsoon's avatar
qinsoon committed
29
30
            })
        }
qinsoon's avatar
qinsoon committed
31
32
33
34
    };
}

macro_rules! FPR {
qinsoon's avatar
qinsoon committed
35
    ($id:expr, $name: expr) => {
qinsoon's avatar
qinsoon committed
36
37
        {
            P(Value {
qinsoon's avatar
qinsoon committed
38
                hdr: MuEntityHeader::named($id, $name.to_string()),
qinsoon's avatar
qinsoon committed
39
                ty: DOUBLE_TYPE.clone(),
qinsoon's avatar
qinsoon committed
40
                v: Value_::SSAVar($id)
qinsoon's avatar
qinsoon committed
41
42
            })
        }
qinsoon's avatar
qinsoon committed
43
44
45
46
    };
}

// put into several segments to avoid 'recursion limit reached' error
qinsoon's avatar
qinsoon committed
47
lazy_static! {
qinsoon's avatar
qinsoon committed
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
    pub static ref RAX : P<Value> = GPR!(0, "rax");
    pub static ref RCX : P<Value> = GPR!(1, "rcx");
    pub static ref RDX : P<Value> = GPR!(2, "rdx");
    pub static ref RBX : P<Value> = GPR!(3, "rbx");
    pub static ref RSP : P<Value> = GPR!(4, "rsp");
    pub static ref RBP : P<Value> = GPR!(5, "rbp");
    pub static ref RSI : P<Value> = GPR!(6, "rsi");
    pub static ref RDI : P<Value> = GPR!(7, "rdi");
    pub static ref R8  : P<Value> = GPR!(8, "r8");
    pub static ref R9  : P<Value> = GPR!(9, "r9");
    pub static ref R10 : P<Value> = GPR!(10,"r10");
    pub static ref R11 : P<Value> = GPR!(11,"r11");
    pub static ref R12 : P<Value> = GPR!(12,"r12");
    pub static ref R13 : P<Value> = GPR!(13,"r13");
    pub static ref R14 : P<Value> = GPR!(14,"r14");
    pub static ref R15 : P<Value> = GPR!(15,"r15");
qinsoon's avatar
qinsoon committed
64
    
qinsoon's avatar
qinsoon committed
65
    pub static ref RIP : P<Value> = GPR!(32,"rip");
66
    
qinsoon's avatar
qinsoon committed
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
    pub static ref RETURN_GPRs : [P<Value>; 2] = [
        RAX.clone(),
        RDX.clone(),
    ];
    
    pub static ref ARGUMENT_GPRs : [P<Value>; 6] = [
        RDI.clone(),
        RSI.clone(),
        RDX.clone(),
        RCX.clone(),
        R8.clone(),
        R9.clone()
    ];
    
    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
89
90
91
92
93
94
95
96
97
98
99
100

    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()
    ];
qinsoon's avatar
qinsoon committed
101
    
102
    pub static ref ALL_GPRs : [P<Value>; 15] = [
qinsoon's avatar
qinsoon committed
103
104
105
106
107
        RAX.clone(),
        RCX.clone(),
        RDX.clone(),
        RBX.clone(),
        RSP.clone(),
108
//        RBP.clone(),
qinsoon's avatar
qinsoon committed
109
110
111
112
113
114
115
116
117
118
119
        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
120
121
122
}

lazy_static!{
qinsoon's avatar
qinsoon committed
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
    pub static ref XMM0  : P<Value> = FPR!(16,"xmm0");
    pub static ref XMM1  : P<Value> = FPR!(17,"xmm1");
    pub static ref XMM2  : P<Value> = FPR!(18,"xmm2");
    pub static ref XMM3  : P<Value> = FPR!(19,"xmm3");
    pub static ref XMM4  : P<Value> = FPR!(20,"xmm4");
    pub static ref XMM5  : P<Value> = FPR!(21,"xmm5");
    pub static ref XMM6  : P<Value> = FPR!(22,"xmm6");
    pub static ref XMM7  : P<Value> = FPR!(23,"xmm7");
    pub static ref XMM8  : P<Value> = FPR!(24,"xmm8");
    pub static ref XMM9  : P<Value> = FPR!(25,"xmm9");
    pub static ref XMM10 : P<Value> = FPR!(26,"xmm10");
    pub static ref XMM11 : P<Value> = FPR!(27,"xmm11");
    pub static ref XMM12 : P<Value> = FPR!(28,"xmm12");
    pub static ref XMM13 : P<Value> = FPR!(29,"xmm13");
    pub static ref XMM14 : P<Value> = FPR!(30,"xmm14");
    pub static ref XMM15 : P<Value> = FPR!(31,"xmm15"); 
qinsoon's avatar
qinsoon committed
139
140
141
142
143
144
145
146
147
148
149
150
151
152
    
    pub static ref RETURN_FPRs : [P<Value>; 2] = [
        XMM0.clone(),
        XMM1.clone()
    ];
    
    pub static ref ARGUMENT_FPRs : [P<Value>; 6] = [
        XMM2.clone(),
        XMM3.clone(),
        XMM4.clone(),
        XMM5.clone(),
        XMM6.clone(),
        XMM7.clone()
    ];
qinsoon's avatar
qinsoon committed
153
    
qinsoon's avatar
qinsoon committed
154
    pub static ref CALLEE_SAVED_FPRs : [P<Value>; 0] = [];
qinsoon's avatar
qinsoon committed
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173

    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(),
    ];
qinsoon's avatar
qinsoon committed
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
    
    pub static ref ALL_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(),
    ];
qinsoon's avatar
qinsoon committed
193
194
}

qinsoon's avatar
qinsoon committed
195
196
197
pub const GPR_COUNT : usize = 16;
pub const FPR_COUNT : usize = 16;

qinsoon's avatar
qinsoon committed
198
lazy_static! {
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
    pub static ref ALL_MACHINE_REGs : HashMap<MuID, P<Value>> = {
        let mut map = HashMap::new();
        map.insert(RAX.id(), RAX.clone());
        map.insert(RCX.id(), RCX.clone());
        map.insert(RDX.id(), RDX.clone());
        map.insert(RBX.id(), RBX.clone());
        map.insert(RSP.id(), RSP.clone());
        map.insert(RBP.id(), RBP.clone());
        map.insert(RSI.id(), RSI.clone());
        map.insert(RDI.id(), RDI.clone());
        map.insert(R8.id(), R8.clone());
        map.insert(R9.id(), R9.clone());
        map.insert(R10.id(), R10.clone());
        map.insert(R11.id(), R11.clone());
        map.insert(R12.id(), R12.clone());
        map.insert(R13.id(), R13.clone());
        map.insert(R14.id(), R14.clone());
        map.insert(R15.id(), R15.clone());
        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.insert(RIP.id(), RIP.clone());
        
        map
    };
237
    
238
    // put callee saved regs first
239
    pub static ref ALL_USABLE_MACHINE_REGs : Vec<P<Value>> = vec![
240
241
242
243
244
245
        RBX.clone(),
        R12.clone(),
        R13.clone(),
        R14.clone(),
        R15.clone(),
            
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
        RAX.clone(),
        RCX.clone(),
        RDX.clone(),
        RSI.clone(),
        RDI.clone(),
        R8.clone(),
        R9.clone(),
        R10.clone(),
        R11.clone(),
        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
272
273
}

qinsoon's avatar
qinsoon committed
274
pub fn init_machine_regs_for_func (func_context: &mut FunctionContext) {
275
    for reg in ALL_MACHINE_REGs.values() {
qinsoon's avatar
qinsoon committed
276
        let reg_id = reg.extract_ssa_id().unwrap();
qinsoon's avatar
qinsoon committed
277
        let entry = SSAVarEntry::new(reg.clone());
qinsoon's avatar
qinsoon committed
278
279
280
281
282
283
284
285
286
        
        func_context.values.insert(reg_id, entry);
    }
}

pub fn number_of_regs_in_group(group: RegGroup) -> usize {
    match group {
        RegGroup::GPR => ALL_GPRs.len(),
        RegGroup::FPR => ALL_FPRs.len()
qinsoon's avatar
qinsoon committed
287
288
289
    }
}

qinsoon's avatar
qinsoon committed
290
291
292
293
pub fn number_of_all_regs() -> usize {
    ALL_MACHINE_REGs.len()
}

294
pub fn all_regs() -> &'static HashMap<MuID, P<Value>> {
qinsoon's avatar
qinsoon committed
295
296
297
    &ALL_MACHINE_REGs
}

298
299
300
301
pub fn all_usable_regs() -> &'static Vec<P<Value>> {
    &ALL_USABLE_MACHINE_REGs
}

302
pub fn pick_group_for_reg(reg_id: MuID) -> RegGroup {
303
304
305
306
307
308
309
    let reg = all_regs().get(&reg_id).unwrap();
    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)
310
311
312
    }
}

313
314
315
316
317
318
319
320
321
322
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;
        }
    }
    
    false 
}

323
pub fn is_valid_x86_imm(op: &P<Value>) -> bool {
qinsoon's avatar
qinsoon committed
324
325
    use std::u32;
    match op.v {
qinsoon's avatar
qinsoon committed
326
        Value_::Constant(Constant::Int(val)) if val <= u32::MAX as u64 => {
qinsoon's avatar
qinsoon committed
327
328
            true
        },
329
330
        _ => false
    }
331
}