GitLab will be upgraded to the 12.10.14-ce.0 on 28 Sept 2020 at 2.00pm (AEDT) to 2.30pm (AEDT). During the update, GitLab and Mattermost services will not be available. If you have any concerns with this, please talk to us at N110 (b) CSIT building.

codegen.rs 10 KB
Newer Older
1 2
use ast::ptr::P;
use ast::ir::*;
qinsoon's avatar
qinsoon committed
3
use runtime::ValueLocation;
4

qinsoon's avatar
qinsoon committed
5
use compiler::machine_code::MachineCode;
qinsoon's avatar
qinsoon committed
6
use compiler::backend::{Reg, Mem};
7

8
pub trait CodeGenerator {
9
    fn start_code(&mut self, func_name: MuName, entry: MuName) -> ValueLocation;
10
    fn finish_code(&mut self, func_name: MuName) -> (Box<MachineCode + Sync + Send>, ValueLocation);
11 12 13 14

    // generate unnamed sequence of linear code (no branch)
    fn start_code_sequence(&mut self);
    fn finish_code_sequence(&mut self) -> Box<MachineCode + Sync + Send>;
15 16 17
    
    fn print_cur_code(&self);
    
qinsoon's avatar
qinsoon committed
18
    fn start_block(&mut self, block_name: MuName);
qinsoon's avatar
qinsoon committed
19
    fn start_exception_block(&mut self, block_name: MuName) -> ValueLocation;
qinsoon's avatar
qinsoon committed
20 21 22
    fn set_block_livein(&mut self, block_name: MuName, live_in: &Vec<P<Value>>);
    fn set_block_liveout(&mut self, block_name: MuName, live_out: &Vec<P<Value>>);
    fn end_block(&mut self, block_name: MuName);
qinsoon's avatar
qinsoon committed
23

qinsoon's avatar
qinsoon committed
24 25 26 27 28 29 30 31
    // add CFI info
    fn add_cfi_startproc(&mut self);
    fn add_cfi_endproc(&mut self);
    fn add_cfi_def_cfa_register(&mut self, reg: Reg);
    fn add_cfi_def_cfa_offset(&mut self, offset: i32);
    fn add_cfi_offset(&mut self, reg: Reg, offset: i32);

    // emit code to adjust frame
qinsoon's avatar
qinsoon committed
32 33
    fn emit_frame_grow(&mut self);
    fn emit_frame_shrink(&mut self);
34
    
35
    fn emit_nop(&mut self, bytes: usize);
36 37

    // comparison
qinsoon's avatar
qinsoon committed
38 39 40
    fn emit_cmp_r_r  (&mut self, op1: Reg, op2: Reg);
    fn emit_cmp_imm_r(&mut self, op1: i32, op2: Reg);
    fn emit_cmp_mem_r(&mut self, op1: Reg, op2: Reg);
41

qinsoon's avatar
qinsoon committed
42 43
    fn emit_test_r_r (&mut self, op1: Reg, op2: Reg);

44
    // gpr move
qinsoon's avatar
qinsoon committed
45 46

    // mov imm64 to r64
47
    fn emit_mov_r64_imm64  (&mut self, dest: Reg, src: i64);
qinsoon's avatar
qinsoon committed
48 49
    // mov r64 to fpr
    fn emit_mov_fpr_r64 (&mut self, dest: Reg, src: Reg);
qinsoon's avatar
qinsoon committed
50 51 52 53 54

    fn emit_mov_r_imm  (&mut self, dest: Reg, src: i32);
    fn emit_mov_r_mem  (&mut self, dest: Reg, src: Mem); // load
    fn emit_mov_r_r    (&mut self, dest: Reg, src: Reg);
    fn emit_mov_mem_r  (&mut self, dest: Mem, src: Reg); // store
55 56 57
    // we can infer imm length from Reg, but cannot from Mem
    // because mem may only have type as ADDRESS_TYPE
    fn emit_mov_mem_imm(&mut self, dest: Mem, src: i32, oplen: usize); // store
qinsoon's avatar
qinsoon committed
58 59 60 61

    // zero/sign extend mov
    fn emit_movs_r_r   (&mut self, dest: Reg, src: Reg);
    fn emit_movz_r_r   (&mut self, dest: Reg, src: Reg);
62

qinsoon's avatar
qinsoon committed
63 64 65 66 67 68
    // set byte
    fn emit_sets_r8    (&mut self, dest: Reg);
    fn emit_setz_r8    (&mut self, dest: Reg);
    fn emit_seto_r8    (&mut self, dest: Reg);
    fn emit_setb_r8    (&mut self, dest: Reg);

69 70 71 72 73 74 75 76 77 78 79
    fn emit_seta_r  (&mut self, dest: Reg);
    fn emit_setae_r  (&mut self, dest: Reg);
    fn emit_setb_r  (&mut self, dest: Reg);
    fn emit_setbe_r  (&mut self, dest: Reg);
    fn emit_sete_r  (&mut self, dest: Reg);
    fn emit_setg_r  (&mut self, dest: Reg);
    fn emit_setge_r  (&mut self, dest: Reg);
    fn emit_setl_r  (&mut self, dest: Reg);
    fn emit_setle_r  (&mut self, dest: Reg);
    fn emit_setne_r  (&mut self, dest: Reg);

qinsoon's avatar
qinsoon committed
80 81
    // gpr conditional move

qinsoon's avatar
qinsoon committed
82 83
    fn emit_cmova_r_r  (&mut self, dest: Reg, src: Reg);
    fn emit_cmova_r_mem(&mut self, dest: Reg, src: Mem); // load
qinsoon's avatar
qinsoon committed
84

qinsoon's avatar
qinsoon committed
85 86
    fn emit_cmovae_r_r  (&mut self, dest: Reg, src: Reg);
    fn emit_cmovae_r_mem(&mut self, dest: Reg, src: Mem); // load
qinsoon's avatar
qinsoon committed
87

qinsoon's avatar
qinsoon committed
88 89
    fn emit_cmovb_r_r  (&mut self, dest: Reg, src: Reg);
    fn emit_cmovb_r_mem(&mut self, dest: Reg, src: Mem); // load
qinsoon's avatar
qinsoon committed
90

qinsoon's avatar
qinsoon committed
91 92
    fn emit_cmovbe_r_r  (&mut self, dest: Reg, src: Reg);
    fn emit_cmovbe_r_mem(&mut self, dest: Reg, src: Mem); // load
qinsoon's avatar
qinsoon committed
93

qinsoon's avatar
qinsoon committed
94 95
    fn emit_cmove_r_r  (&mut self, dest: Reg, src: Reg);
    fn emit_cmove_r_mem(&mut self, dest: Reg, src: Mem); // load
qinsoon's avatar
qinsoon committed
96

qinsoon's avatar
qinsoon committed
97 98
    fn emit_cmovg_r_r  (&mut self, dest: Reg, src: Reg);
    fn emit_cmovg_r_mem(&mut self, dest: Reg, src: Mem); // load
qinsoon's avatar
qinsoon committed
99

qinsoon's avatar
qinsoon committed
100 101
    fn emit_cmovge_r_r  (&mut self, dest: Reg, src: Reg);
    fn emit_cmovge_r_mem(&mut self, dest: Reg, src: Mem); // load
qinsoon's avatar
qinsoon committed
102

qinsoon's avatar
qinsoon committed
103 104
    fn emit_cmovl_r_r  (&mut self, dest: Reg, src: Reg);
    fn emit_cmovl_r_mem(&mut self, dest: Reg, src: Mem); // load
qinsoon's avatar
qinsoon committed
105

qinsoon's avatar
qinsoon committed
106 107
    fn emit_cmovle_r_r  (&mut self, dest: Reg, src: Reg);
    fn emit_cmovle_r_mem(&mut self, dest: Reg, src: Mem); // load
qinsoon's avatar
qinsoon committed
108

qinsoon's avatar
qinsoon committed
109 110
    fn emit_cmovne_r_r  (&mut self, dest: Reg, src: Reg);
    fn emit_cmovne_r_mem(&mut self, dest: Reg, src: Mem); // load
qinsoon's avatar
qinsoon committed
111

112
    // lea
qinsoon's avatar
qinsoon committed
113
    fn emit_lea_r64(&mut self, dest: Reg, src: Mem);
114 115

    // and
qinsoon's avatar
qinsoon committed
116 117 118
    fn emit_and_r_imm(&mut self, dest: Reg, src: i32);
    fn emit_and_r_r  (&mut self, dest: Reg, src: Reg);
    fn emit_and_r_mem(&mut self, dest: Reg, src: Mem);
119

qinsoon's avatar
qinsoon committed
120 121 122 123
    // or
    fn emit_or_r_r  (&mut self, dest: Reg, src: Reg);
    fn emit_or_r_imm(&mut self, dest: Reg, src: i32);
    fn emit_or_r_mem(&mut self, dest: Reg, src: Mem);
124

125
    // xor
qinsoon's avatar
qinsoon committed
126 127 128
    fn emit_xor_r_r  (&mut self, dest: Reg, src: Reg);
    fn emit_xor_r_mem(&mut self, dest: Reg, src: Mem);
    fn emit_xor_r_imm(&mut self, dest: Reg, src: i32);
129

130
    // add
qinsoon's avatar
qinsoon committed
131 132 133
    fn emit_add_r_r  (&mut self, dest: Reg, src: Reg);
    fn emit_add_r_mem(&mut self, dest: Reg, src: Mem);
    fn emit_add_r_imm(&mut self, dest: Reg, src: i32);
qinsoon's avatar
qinsoon committed
134 135 136 137 138

    // add with carry
    fn emit_adc_r_r  (&mut self, dest: Reg, src: Reg);
    fn emit_adc_r_mem(&mut self, dest: Reg, src: Mem);
    fn emit_adc_r_imm(&mut self, dest: Reg, src: i32);
qinsoon's avatar
qinsoon committed
139
    
140
    // sub
qinsoon's avatar
qinsoon committed
141 142 143
    fn emit_sub_r_r  (&mut self, dest: Reg, src: Reg);
    fn emit_sub_r_mem(&mut self, dest: Reg, src: Mem);
    fn emit_sub_r_imm(&mut self, dest: Reg, src: i32);
144

145 146 147 148 149
    // sub with borrow
    fn emit_sbb_r_r  (&mut self, dest: Reg, src: Reg);
    fn emit_sbb_r_mem(&mut self, dest: Reg, src: Mem);
    fn emit_sbb_r_imm(&mut self, dest: Reg, src: i32);

150
    // multiply
qinsoon's avatar
qinsoon committed
151 152
    fn emit_mul_r  (&mut self, src: Reg);
    fn emit_mul_mem(&mut self, src: Mem);
153

154 155 156
    // signed multiply
    fn emit_imul_r_r(&mut self, dest: Reg, src: Reg);

157
    // div
qinsoon's avatar
qinsoon committed
158 159
    fn emit_div_r   (&mut self, src: Reg);
    fn emit_div_mem (&mut self, src: Mem);
160 161

    // idiv
qinsoon's avatar
qinsoon committed
162 163
    fn emit_idiv_r  (&mut self, src: Reg);
    fn emit_idiv_mem(&mut self, src: Mem);
164 165

    // shl
qinsoon's avatar
qinsoon committed
166 167 168 169 170 171 172 173
    fn emit_shl_r_cl    (&mut self, dest: Reg);
    fn emit_shl_r_imm8  (&mut self, dest: Reg, src: i8);

    fn emit_shr_r_cl    (&mut self, dest: &P<Value>);
    fn emit_shr_r_imm8  (&mut self, dest: &P<Value>, src: i8);

    fn emit_sar_r_cl    (&mut self, dest: &P<Value>);
    fn emit_sar_r_imm8  (&mut self, dest: &P<Value>, src: i8);
qinsoon's avatar
qinsoon committed
174

qinsoon's avatar
qinsoon committed
175 176 177
    fn emit_cqo(&mut self); // sign extend rax to rdx:rax
    fn emit_cdq(&mut self); // sign extend eax to edx:eax
    fn emit_cwd(&mut self); // sign extend ax  to dx:ax
178
    
179 180 181 182 183 184 185 186 187 188 189
    fn emit_jmp(&mut self, dest: MuName);
    fn emit_je(&mut self, dest: MuName);
    fn emit_jne(&mut self, dest: MuName);
    fn emit_ja(&mut self, dest: MuName);
    fn emit_jae(&mut self, dest: MuName);
    fn emit_jb(&mut self, dest: MuName);
    fn emit_jbe(&mut self, dest: MuName);
    fn emit_jg(&mut self, dest: MuName);
    fn emit_jge(&mut self, dest: MuName);
    fn emit_jl(&mut self, dest: MuName);
    fn emit_jle(&mut self, dest: MuName);
qinsoon's avatar
qinsoon committed
190 191

    fn emit_js(&mut self, dest: MuName);
qinsoon's avatar
qinsoon committed
192
    
193 194 195
    fn emit_call_near_rel32(&mut self, callsite: String, func: MuName,    pe: Option<MuName>) -> ValueLocation;
    fn emit_call_near_r64  (&mut self, callsite: String, func: &P<Value>, pe: Option<MuName>) -> ValueLocation;
    fn emit_call_near_mem64(&mut self, callsite: String, func: &P<Value>, pe: Option<MuName>) -> ValueLocation;
196
    
qinsoon's avatar
qinsoon committed
197
    fn emit_ret(&mut self);
qinsoon's avatar
qinsoon committed
198

199
    fn emit_push_r64(&mut self, src: &P<Value>);
200
    fn emit_push_imm32(&mut self, src: i32);
201
    fn emit_pop_r64(&mut self, dest: &P<Value>);
202 203 204 205 206

    // fpr move
    fn emit_movsd_f64_f64  (&mut self, dest: &P<Value>, src: &P<Value>);
    fn emit_movsd_f64_mem64(&mut self, dest: &P<Value>, src: &P<Value>); // load
    fn emit_movsd_mem64_f64(&mut self, dest: &P<Value>, src: &P<Value>); // store
qinsoon's avatar
qinsoon committed
207

208 209 210 211
    fn emit_movss_f32_f32  (&mut self, dest: &P<Value>, src: &P<Value>);
    fn emit_movss_f32_mem32(&mut self, dest: &P<Value>, src: &P<Value>); // load
    fn emit_movss_mem32_f32(&mut self, dest: &P<Value>, src: &P<Value>); // store

qinsoon's avatar
qinsoon committed
212 213 214 215
    // fp add
    fn emit_addsd_f64_f64  (&mut self, dest: Reg, src: Reg);
    fn emit_addsd_f64_mem64(&mut self, dest: Reg, src: Mem);

216 217 218
    fn emit_addss_f32_f32  (&mut self, dest: Reg, src: Reg);
    fn emit_addss_f32_mem32(&mut self, dest: Reg, src: Mem);

qinsoon's avatar
qinsoon committed
219 220 221 222
    // fp sub
    fn emit_subsd_f64_f64  (&mut self, dest: Reg, src: Reg);
    fn emit_subsd_f64_mem64(&mut self, dest: Reg, src: Mem);

223 224 225
    fn emit_subss_f32_f32  (&mut self, dest: Reg, src: Reg);
    fn emit_subss_f32_mem32(&mut self, dest: Reg, src: Mem);

qinsoon's avatar
qinsoon committed
226 227 228 229
    // fp div
    fn emit_divsd_f64_f64  (&mut self, dest: Reg, src: Reg);
    fn emit_divsd_f64_mem64(&mut self, dest: Reg, src: Mem);

230 231 232
    fn emit_divss_f32_f32  (&mut self, dest: Reg, src: Reg);
    fn emit_divss_f32_mem32(&mut self, dest: Reg, src: Mem);

qinsoon's avatar
qinsoon committed
233 234 235 236
    // fp mul
    fn emit_mulsd_f64_f64  (&mut self, dest: Reg, src: Reg);
    fn emit_mulsd_f64_mem64(&mut self, dest: Reg, src: Mem);

237 238 239
    fn emit_mulss_f32_f32  (&mut self, dest: Reg, src: Reg);
    fn emit_mulss_f32_mem32(&mut self, dest: Reg, src: Mem);

qinsoon's avatar
qinsoon committed
240 241 242
    // fp comparison
    fn emit_comisd_f64_f64  (&mut self, op1: Reg, op2: Reg);
    fn emit_ucomisd_f64_f64 (&mut self, op1: Reg, op2: Reg);
qinsoon's avatar
qinsoon committed
243

244 245 246
    fn emit_comiss_f32_f32  (&mut self, op1: Reg, op2: Reg);
    fn emit_ucomiss_f32_f32 (&mut self, op1: Reg, op2: Reg);

qinsoon's avatar
qinsoon committed
247 248 249
    // fp conversion
    fn emit_cvtsi2sd_f64_r  (&mut self, dest: Reg, src: Reg);
    fn emit_cvtsd2si_r_f64  (&mut self, dest: Reg, src: Reg);
250 251 252

    fn emit_cvtsi2ss_f32_r  (&mut self, dest: Reg, src: Reg);
    fn emit_cvtss2si_r_f32  (&mut self, dest: Reg, src: Reg);
253 254 255

    // used for unsigned int to fp conversion

256
    fn emit_cvttsd2si_r_f64 (&mut self, dest: Reg, src: Reg);
qinsoon's avatar
qinsoon committed
257
    fn emit_cvttss2si_r_f32 (&mut self, dest: Reg, src: Reg);
258

259 260 261 262 263 264
    // unpack low data - interleave low byte
    fn emit_punpckldq_f64_mem128(&mut self, dest: Reg, src: Mem);
    // substract packed double-fp
    fn emit_subpd_f64_mem128   (&mut self, dest: Reg, src: Mem);
    // packed double-fp horizontal add
    fn emit_haddpd_f64_f64     (&mut self, dest: Reg, src: Reg);
265 266 267 268

    // move aligned packed double-precision fp values
    fn emit_movapd_f64_mem128(&mut self, dest: Reg, src: Mem);
    fn emit_movapd_f64_f64   (&mut self, dest: Reg, src: Mem);
qinsoon's avatar
qinsoon committed
269 270

    fn emit_movaps_f32_f32   (&mut self, dest: Reg, src: Reg);
271
}