1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ART_COMPILER_DEX_QUICK_ARM_ARM_LIR_H_ 18 #define ART_COMPILER_DEX_QUICK_ARM_ARM_LIR_H_ 19 20 #include "dex/compiler_internals.h" 21 22 namespace art { 23 24 /* 25 * Runtime register usage conventions. 26 * 27 * r0-r3: Argument registers in both Dalvik and C/C++ conventions. 28 * However, for Dalvik->Dalvik calls we'll pass the target's Method* 29 * pointer in r0 as a hidden arg0. Otherwise used as codegen scratch 30 * registers. 31 * r0-r1: As in C/C++ r0 is 32-bit return register and r0/r1 is 64-bit 32 * r4 : (rARM_SUSPEND) is reserved (suspend check/debugger assist) 33 * r5 : Callee save (promotion target) 34 * r6 : Callee save (promotion target) 35 * r7 : Callee save (promotion target) 36 * r8 : Callee save (promotion target) 37 * r9 : (rARM_SELF) is reserved (pointer to thread-local storage) 38 * r10 : Callee save (promotion target) 39 * r11 : Callee save (promotion target) 40 * r12 : Scratch, may be trashed by linkage stubs 41 * r13 : (sp) is reserved 42 * r14 : (lr) is reserved 43 * r15 : (pc) is reserved 44 * 45 * 5 core temps that codegen can use (r0, r1, r2, r3, r12) 46 * 7 core registers that can be used for promotion 47 * 48 * Floating pointer registers 49 * s0-s31 50 * d0-d15, where d0={s0,s1}, d1={s2,s3}, ... , d15={s30,s31} 51 * 52 * s16-s31 (d8-d15) preserved across C calls 53 * s0-s15 (d0-d7) trashed across C calls 54 * 55 * s0-s15/d0-d7 used as codegen temp/scratch 56 * s16-s31/d8-d31 can be used for promotion. 57 * 58 * Calling convention 59 * o On a call to a Dalvik method, pass target's Method* in r0 60 * o r1-r3 will be used for up to the first 3 words of arguments 61 * o Arguments past the first 3 words will be placed in appropriate 62 * out slots by the caller. 63 * o If a 64-bit argument would span the register/memory argument 64 * boundary, it will instead be fully passed in the frame. 65 * o Maintain a 16-byte stack alignment 66 * 67 * Stack frame diagram (stack grows down, higher addresses at top): 68 * 69 * +------------------------+ 70 * | IN[ins-1] | {Note: resides in caller's frame} 71 * | . | 72 * | IN[0] | 73 * | caller's Method* | 74 * +========================+ {Note: start of callee's frame} 75 * | spill region | {variable sized - will include lr if non-leaf.} 76 * +------------------------+ 77 * | ...filler word... | {Note: used as 2nd word of V[locals-1] if long] 78 * +------------------------+ 79 * | V[locals-1] | 80 * | V[locals-2] | 81 * | . | 82 * | . | 83 * | V[1] | 84 * | V[0] | 85 * +------------------------+ 86 * | 0 to 3 words padding | 87 * +------------------------+ 88 * | OUT[outs-1] | 89 * | OUT[outs-2] | 90 * | . | 91 * | OUT[0] | 92 * | cur_method* | <<== sp w/ 16-byte alignment 93 * +========================+ 94 */ 95 96 // Offset to distingish FP regs. 97 #define ARM_FP_REG_OFFSET 32 98 // Offset to distinguish DP FP regs. 99 #define ARM_FP_DOUBLE 64 100 // First FP callee save. 101 #define ARM_FP_CALLEE_SAVE_BASE 16 102 // Reg types. 103 #define ARM_REGTYPE(x) (x & (ARM_FP_REG_OFFSET | ARM_FP_DOUBLE)) 104 #define ARM_FPREG(x) ((x & ARM_FP_REG_OFFSET) == ARM_FP_REG_OFFSET) 105 #define ARM_LOWREG(x) ((x & 0x7) == x) 106 #define ARM_DOUBLEREG(x) ((x & ARM_FP_DOUBLE) == ARM_FP_DOUBLE) 107 #define ARM_SINGLEREG(x) (ARM_FPREG(x) && !ARM_DOUBLEREG(x)) 108 109 /* 110 * Note: the low register of a floating point pair is sufficient to 111 * create the name of a double, but require both names to be passed to 112 * allow for asserts to verify that the pair is consecutive if significant 113 * rework is done in this area. Also, it is a good reminder in the calling 114 * code that reg locations always describe doubles as a pair of singles. 115 */ 116 #define ARM_S2D(x, y) ((x) | ARM_FP_DOUBLE) 117 // Mask to strip off fp flags. 118 #define ARM_FP_REG_MASK (ARM_FP_REG_OFFSET-1) 119 120 // RegisterLocation templates return values (r0, or r0/r1). 121 #define ARM_LOC_C_RETURN {kLocPhysReg, 0, 0, 0, 0, 0, 0, 0, 1, r0, INVALID_REG, \ 122 INVALID_SREG, INVALID_SREG} 123 #define ARM_LOC_C_RETURN_WIDE {kLocPhysReg, 1, 0, 0, 0, 0, 0, 0, 1, r0, r1, \ 124 INVALID_SREG, INVALID_SREG} 125 #define ARM_LOC_C_RETURN_FLOAT ARM_LOC_C_RETURN 126 #define ARM_LOC_C_RETURN_DOUBLE ARM_LOC_C_RETURN_WIDE 127 128 enum ArmResourceEncodingPos { 129 kArmGPReg0 = 0, 130 kArmRegSP = 13, 131 kArmRegLR = 14, 132 kArmRegPC = 15, 133 kArmFPReg0 = 16, 134 kArmFPReg16 = 32, 135 kArmRegEnd = 48, 136 }; 137 138 #define ENCODE_ARM_REG_LIST(N) (static_cast<uint64_t>(N)) 139 #define ENCODE_ARM_REG_SP (1ULL << kArmRegSP) 140 #define ENCODE_ARM_REG_LR (1ULL << kArmRegLR) 141 #define ENCODE_ARM_REG_PC (1ULL << kArmRegPC) 142 #define ENCODE_ARM_REG_FPCS_LIST(N) (static_cast<uint64_t>(N) << kArmFPReg16) 143 144 enum ArmNativeRegisterPool { 145 r0 = 0, 146 r1 = 1, 147 r2 = 2, 148 r3 = 3, 149 rARM_SUSPEND = 4, 150 r5 = 5, 151 r6 = 6, 152 r7 = 7, 153 r8 = 8, 154 rARM_SELF = 9, 155 r10 = 10, 156 r11 = 11, 157 r12 = 12, 158 r13sp = 13, 159 rARM_SP = 13, 160 r14lr = 14, 161 rARM_LR = 14, 162 r15pc = 15, 163 rARM_PC = 15, 164 fr0 = 0 + ARM_FP_REG_OFFSET, 165 fr1 = 1 + ARM_FP_REG_OFFSET, 166 fr2 = 2 + ARM_FP_REG_OFFSET, 167 fr3 = 3 + ARM_FP_REG_OFFSET, 168 fr4 = 4 + ARM_FP_REG_OFFSET, 169 fr5 = 5 + ARM_FP_REG_OFFSET, 170 fr6 = 6 + ARM_FP_REG_OFFSET, 171 fr7 = 7 + ARM_FP_REG_OFFSET, 172 fr8 = 8 + ARM_FP_REG_OFFSET, 173 fr9 = 9 + ARM_FP_REG_OFFSET, 174 fr10 = 10 + ARM_FP_REG_OFFSET, 175 fr11 = 11 + ARM_FP_REG_OFFSET, 176 fr12 = 12 + ARM_FP_REG_OFFSET, 177 fr13 = 13 + ARM_FP_REG_OFFSET, 178 fr14 = 14 + ARM_FP_REG_OFFSET, 179 fr15 = 15 + ARM_FP_REG_OFFSET, 180 fr16 = 16 + ARM_FP_REG_OFFSET, 181 fr17 = 17 + ARM_FP_REG_OFFSET, 182 fr18 = 18 + ARM_FP_REG_OFFSET, 183 fr19 = 19 + ARM_FP_REG_OFFSET, 184 fr20 = 20 + ARM_FP_REG_OFFSET, 185 fr21 = 21 + ARM_FP_REG_OFFSET, 186 fr22 = 22 + ARM_FP_REG_OFFSET, 187 fr23 = 23 + ARM_FP_REG_OFFSET, 188 fr24 = 24 + ARM_FP_REG_OFFSET, 189 fr25 = 25 + ARM_FP_REG_OFFSET, 190 fr26 = 26 + ARM_FP_REG_OFFSET, 191 fr27 = 27 + ARM_FP_REG_OFFSET, 192 fr28 = 28 + ARM_FP_REG_OFFSET, 193 fr29 = 29 + ARM_FP_REG_OFFSET, 194 fr30 = 30 + ARM_FP_REG_OFFSET, 195 fr31 = 31 + ARM_FP_REG_OFFSET, 196 dr0 = fr0 + ARM_FP_DOUBLE, 197 dr1 = fr2 + ARM_FP_DOUBLE, 198 dr2 = fr4 + ARM_FP_DOUBLE, 199 dr3 = fr6 + ARM_FP_DOUBLE, 200 dr4 = fr8 + ARM_FP_DOUBLE, 201 dr5 = fr10 + ARM_FP_DOUBLE, 202 dr6 = fr12 + ARM_FP_DOUBLE, 203 dr7 = fr14 + ARM_FP_DOUBLE, 204 dr8 = fr16 + ARM_FP_DOUBLE, 205 dr9 = fr18 + ARM_FP_DOUBLE, 206 dr10 = fr20 + ARM_FP_DOUBLE, 207 dr11 = fr22 + ARM_FP_DOUBLE, 208 dr12 = fr24 + ARM_FP_DOUBLE, 209 dr13 = fr26 + ARM_FP_DOUBLE, 210 dr14 = fr28 + ARM_FP_DOUBLE, 211 dr15 = fr30 + ARM_FP_DOUBLE, 212 }; 213 214 // Target-independent aliases. 215 #define rARM_ARG0 r0 216 #define rARM_ARG1 r1 217 #define rARM_ARG2 r2 218 #define rARM_ARG3 r3 219 #define rARM_FARG0 r0 220 #define rARM_FARG1 r1 221 #define rARM_FARG2 r2 222 #define rARM_FARG3 r3 223 #define rARM_RET0 r0 224 #define rARM_RET1 r1 225 #define rARM_INVOKE_TGT rARM_LR 226 #define rARM_COUNT INVALID_REG 227 228 enum ArmShiftEncodings { 229 kArmLsl = 0x0, 230 kArmLsr = 0x1, 231 kArmAsr = 0x2, 232 kArmRor = 0x3 233 }; 234 235 /* 236 * The following enum defines the list of supported Thumb instructions by the 237 * assembler. Their corresponding EncodingMap positions will be defined in 238 * Assemble.cc. 239 */ 240 enum ArmOpcode { 241 kArmFirst = 0, 242 kArm16BitData = kArmFirst, // DATA [0] rd[15..0]. 243 kThumbAdcRR, // adc [0100000101] rm[5..3] rd[2..0]. 244 kThumbAddRRI3, // add(1) [0001110] imm_3[8..6] rn[5..3] rd[2..0]*/ 245 kThumbAddRI8, // add(2) [00110] rd[10..8] imm_8[7..0]. 246 kThumbAddRRR, // add(3) [0001100] rm[8..6] rn[5..3] rd[2..0]. 247 kThumbAddRRLH, // add(4) [01000100] H12[01] rm[5..3] rd[2..0]. 248 kThumbAddRRHL, // add(4) [01001000] H12[10] rm[5..3] rd[2..0]. 249 kThumbAddRRHH, // add(4) [01001100] H12[11] rm[5..3] rd[2..0]. 250 kThumbAddPcRel, // add(5) [10100] rd[10..8] imm_8[7..0]. 251 kThumbAddSpRel, // add(6) [10101] rd[10..8] imm_8[7..0]. 252 kThumbAddSpI7, // add(7) [101100000] imm_7[6..0]. 253 kThumbAndRR, // and [0100000000] rm[5..3] rd[2..0]. 254 kThumbAsrRRI5, // asr(1) [00010] imm_5[10..6] rm[5..3] rd[2..0]. 255 kThumbAsrRR, // asr(2) [0100000100] rs[5..3] rd[2..0]. 256 kThumbBCond, // b(1) [1101] cond[11..8] offset_8[7..0]. 257 kThumbBUncond, // b(2) [11100] offset_11[10..0]. 258 kThumbBicRR, // bic [0100001110] rm[5..3] rd[2..0]. 259 kThumbBkpt, // bkpt [10111110] imm_8[7..0]. 260 kThumbBlx1, // blx(1) [111] H[10] offset_11[10..0]. 261 kThumbBlx2, // blx(1) [111] H[01] offset_11[10..0]. 262 kThumbBl1, // blx(1) [111] H[10] offset_11[10..0]. 263 kThumbBl2, // blx(1) [111] H[11] offset_11[10..0]. 264 kThumbBlxR, // blx(2) [010001111] rm[6..3] [000]. 265 kThumbBx, // bx [010001110] H2[6..6] rm[5..3] SBZ[000]. 266 kThumbCmnRR, // cmn [0100001011] rm[5..3] rd[2..0]. 267 kThumbCmpRI8, // cmp(1) [00101] rn[10..8] imm_8[7..0]. 268 kThumbCmpRR, // cmp(2) [0100001010] rm[5..3] rd[2..0]. 269 kThumbCmpLH, // cmp(3) [01000101] H12[01] rm[5..3] rd[2..0]. 270 kThumbCmpHL, // cmp(3) [01000110] H12[10] rm[5..3] rd[2..0]. 271 kThumbCmpHH, // cmp(3) [01000111] H12[11] rm[5..3] rd[2..0]. 272 kThumbEorRR, // eor [0100000001] rm[5..3] rd[2..0]. 273 kThumbLdmia, // ldmia [11001] rn[10..8] reglist [7..0]. 274 kThumbLdrRRI5, // ldr(1) [01101] imm_5[10..6] rn[5..3] rd[2..0]. 275 kThumbLdrRRR, // ldr(2) [0101100] rm[8..6] rn[5..3] rd[2..0]. 276 kThumbLdrPcRel, // ldr(3) [01001] rd[10..8] imm_8[7..0]. 277 kThumbLdrSpRel, // ldr(4) [10011] rd[10..8] imm_8[7..0]. 278 kThumbLdrbRRI5, // ldrb(1) [01111] imm_5[10..6] rn[5..3] rd[2..0]. 279 kThumbLdrbRRR, // ldrb(2) [0101110] rm[8..6] rn[5..3] rd[2..0]. 280 kThumbLdrhRRI5, // ldrh(1) [10001] imm_5[10..6] rn[5..3] rd[2..0]. 281 kThumbLdrhRRR, // ldrh(2) [0101101] rm[8..6] rn[5..3] rd[2..0]. 282 kThumbLdrsbRRR, // ldrsb [0101011] rm[8..6] rn[5..3] rd[2..0]. 283 kThumbLdrshRRR, // ldrsh [0101111] rm[8..6] rn[5..3] rd[2..0]. 284 kThumbLslRRI5, // lsl(1) [00000] imm_5[10..6] rm[5..3] rd[2..0]. 285 kThumbLslRR, // lsl(2) [0100000010] rs[5..3] rd[2..0]. 286 kThumbLsrRRI5, // lsr(1) [00001] imm_5[10..6] rm[5..3] rd[2..0]. 287 kThumbLsrRR, // lsr(2) [0100000011] rs[5..3] rd[2..0]. 288 kThumbMovImm, // mov(1) [00100] rd[10..8] imm_8[7..0]. 289 kThumbMovRR, // mov(2) [0001110000] rn[5..3] rd[2..0]. 290 kThumbMovRR_H2H, // mov(3) [01000111] H12[11] rm[5..3] rd[2..0]. 291 kThumbMovRR_H2L, // mov(3) [01000110] H12[01] rm[5..3] rd[2..0]. 292 kThumbMovRR_L2H, // mov(3) [01000101] H12[10] rm[5..3] rd[2..0]. 293 kThumbMul, // mul [0100001101] rm[5..3] rd[2..0]. 294 kThumbMvn, // mvn [0100001111] rm[5..3] rd[2..0]. 295 kThumbNeg, // neg [0100001001] rm[5..3] rd[2..0]. 296 kThumbOrr, // orr [0100001100] rm[5..3] rd[2..0]. 297 kThumbPop, // pop [1011110] r[8..8] rl[7..0]. 298 kThumbPush, // push [1011010] r[8..8] rl[7..0]. 299 kThumbRorRR, // ror [0100000111] rs[5..3] rd[2..0]. 300 kThumbSbc, // sbc [0100000110] rm[5..3] rd[2..0]. 301 kThumbStmia, // stmia [11000] rn[10..8] reglist [7.. 0]. 302 kThumbStrRRI5, // str(1) [01100] imm_5[10..6] rn[5..3] rd[2..0]. 303 kThumbStrRRR, // str(2) [0101000] rm[8..6] rn[5..3] rd[2..0]. 304 kThumbStrSpRel, // str(3) [10010] rd[10..8] imm_8[7..0]. 305 kThumbStrbRRI5, // strb(1) [01110] imm_5[10..6] rn[5..3] rd[2..0]. 306 kThumbStrbRRR, // strb(2) [0101010] rm[8..6] rn[5..3] rd[2..0]. 307 kThumbStrhRRI5, // strh(1) [10000] imm_5[10..6] rn[5..3] rd[2..0]. 308 kThumbStrhRRR, // strh(2) [0101001] rm[8..6] rn[5..3] rd[2..0]. 309 kThumbSubRRI3, // sub(1) [0001111] imm_3[8..6] rn[5..3] rd[2..0]*/ 310 kThumbSubRI8, // sub(2) [00111] rd[10..8] imm_8[7..0]. 311 kThumbSubRRR, // sub(3) [0001101] rm[8..6] rn[5..3] rd[2..0]. 312 kThumbSubSpI7, // sub(4) [101100001] imm_7[6..0]. 313 kThumbSwi, // swi [11011111] imm_8[7..0]. 314 kThumbTst, // tst [0100001000] rm[5..3] rn[2..0]. 315 kThumb2Vldrs, // vldr low sx [111011011001] rn[19..16] rd[15-12] [1010] imm_8[7..0]. 316 kThumb2Vldrd, // vldr low dx [111011011001] rn[19..16] rd[15-12] [1011] imm_8[7..0]. 317 kThumb2Vmuls, // vmul vd, vn, vm [111011100010] rn[19..16] rd[15-12] [10100000] rm[3..0]. 318 kThumb2Vmuld, // vmul vd, vn, vm [111011100010] rn[19..16] rd[15-12] [10110000] rm[3..0]. 319 kThumb2Vstrs, // vstr low sx [111011011000] rn[19..16] rd[15-12] [1010] imm_8[7..0]. 320 kThumb2Vstrd, // vstr low dx [111011011000] rn[19..16] rd[15-12] [1011] imm_8[7..0]. 321 kThumb2Vsubs, // vsub vd, vn, vm [111011100011] rn[19..16] rd[15-12] [10100040] rm[3..0]. 322 kThumb2Vsubd, // vsub vd, vn, vm [111011100011] rn[19..16] rd[15-12] [10110040] rm[3..0]. 323 kThumb2Vadds, // vadd vd, vn, vm [111011100011] rn[19..16] rd[15-12] [10100000] rm[3..0]. 324 kThumb2Vaddd, // vadd vd, vn, vm [111011100011] rn[19..16] rd[15-12] [10110000] rm[3..0]. 325 kThumb2Vdivs, // vdiv vd, vn, vm [111011101000] rn[19..16] rd[15-12] [10100000] rm[3..0]. 326 kThumb2Vdivd, // vdiv vd, vn, vm [111011101000] rn[19..16] rd[15-12] [10110000] rm[3..0]. 327 kThumb2VcvtIF, // vcvt.F32 vd, vm [1110111010111000] vd[15..12] [10101100] vm[3..0]. 328 kThumb2VcvtID, // vcvt.F64 vd, vm [1110111010111000] vd[15..12] [10111100] vm[3..0]. 329 kThumb2VcvtFI, // vcvt.S32.F32 vd, vm [1110111010111101] vd[15..12] [10101100] vm[3..0]. 330 kThumb2VcvtDI, // vcvt.S32.F32 vd, vm [1110111010111101] vd[15..12] [10111100] vm[3..0]. 331 kThumb2VcvtFd, // vcvt.F64.F32 vd, vm [1110111010110111] vd[15..12] [10101100] vm[3..0]. 332 kThumb2VcvtDF, // vcvt.F32.F64 vd, vm [1110111010110111] vd[15..12] [10111100] vm[3..0]. 333 kThumb2Vsqrts, // vsqrt.f32 vd, vm [1110111010110001] vd[15..12] [10101100] vm[3..0]. 334 kThumb2Vsqrtd, // vsqrt.f64 vd, vm [1110111010110001] vd[15..12] [10111100] vm[3..0]. 335 kThumb2MovImmShift, // mov(T2) rd, #<const> [11110] i [00001001111] imm3 rd[11..8] imm8. 336 kThumb2MovImm16, // mov(T3) rd, #<const> [11110] i [0010100] imm4 [0] imm3 rd[11..8] imm8. 337 kThumb2StrRRI12, // str(Imm,T3) rd,[rn,#imm12] [111110001100] rn[19..16] rt[15..12] imm12[11..0]. 338 kThumb2LdrRRI12, // str(Imm,T3) rd,[rn,#imm12] [111110001100] rn[19..16] rt[15..12] imm12[11..0]. 339 kThumb2StrRRI8Predec, // str(Imm,T4) rd,[rn,#-imm8] [111110000100] rn[19..16] rt[15..12] [1100] imm[7..0]*/ 340 kThumb2LdrRRI8Predec, // ldr(Imm,T4) rd,[rn,#-imm8] [111110000101] rn[19..16] rt[15..12] [1100] imm[7..0]*/ 341 kThumb2Cbnz, // cbnz rd,<label> [101110] i [1] imm5[7..3] rn[2..0]. 342 kThumb2Cbz, // cbn rd,<label> [101100] i [1] imm5[7..3] rn[2..0]. 343 kThumb2AddRRI12, // add rd, rn, #imm12 [11110] i [100000] rn[19..16] [0] imm3[14..12] rd[11..8] imm8[7..0]. 344 kThumb2MovRR, // mov rd, rm [11101010010011110000] rd[11..8] [0000] rm[3..0]. 345 kThumb2Vmovs, // vmov.f32 vd, vm [111011101] D [110000] vd[15..12] 101001] M [0] vm[3..0]. 346 kThumb2Vmovd, // vmov.f64 vd, vm [111011101] D [110000] vd[15..12] 101101] M [0] vm[3..0]. 347 kThumb2Ldmia, // ldmia [111010001001[ rn[19..16] mask[15..0]. 348 kThumb2Stmia, // stmia [111010001000[ rn[19..16] mask[15..0]. 349 kThumb2AddRRR, // add [111010110000] rn[19..16] [0000] rd[11..8] [0000] rm[3..0]. 350 kThumb2SubRRR, // sub [111010111010] rn[19..16] [0000] rd[11..8] [0000] rm[3..0]. 351 kThumb2SbcRRR, // sbc [111010110110] rn[19..16] [0000] rd[11..8] [0000] rm[3..0]. 352 kThumb2CmpRR, // cmp [111010111011] rn[19..16] [0000] [1111] [0000] rm[3..0]. 353 kThumb2SubRRI12, // sub rd, rn, #imm12 [11110] i [01010] rn[19..16] [0] imm3[14..12] rd[11..8] imm8[7..0]. 354 kThumb2MvnImm12, // mov(T2) rd, #<const> [11110] i [00011011110] imm3 rd[11..8] imm8. 355 kThumb2Sel, // sel rd, rn, rm [111110101010] rn[19-16] rd[11-8] rm[3-0]. 356 kThumb2Ubfx, // ubfx rd,rn,#lsb,#width [111100111100] rn[19..16] [0] imm3[14-12] rd[11-8] w[4-0]. 357 kThumb2Sbfx, // ubfx rd,rn,#lsb,#width [111100110100] rn[19..16] [0] imm3[14-12] rd[11-8] w[4-0]. 358 kThumb2LdrRRR, // ldr rt,[rn,rm,LSL #imm] [111110000101] rn[19-16] rt[15-12] [000000] imm[5-4] rm[3-0]. 359 kThumb2LdrhRRR, // ldrh rt,[rn,rm,LSL #imm] [111110000101] rn[19-16] rt[15-12] [000000] imm[5-4] rm[3-0]. 360 kThumb2LdrshRRR, // ldrsh rt,[rn,rm,LSL #imm] [111110000101] rn[19-16] rt[15-12] [000000] imm[5-4] rm[3-0]. 361 kThumb2LdrbRRR, // ldrb rt,[rn,rm,LSL #imm] [111110000101] rn[19-16] rt[15-12] [000000] imm[5-4] rm[3-0]. 362 kThumb2LdrsbRRR, // ldrsb rt,[rn,rm,LSL #imm] [111110000101] rn[19-16] rt[15-12] [000000] imm[5-4] rm[3-0]. 363 kThumb2StrRRR, // str rt,[rn,rm,LSL #imm] [111110000100] rn[19-16] rt[15-12] [000000] imm[5-4] rm[3-0]. 364 kThumb2StrhRRR, // str rt,[rn,rm,LSL #imm] [111110000010] rn[19-16] rt[15-12] [000000] imm[5-4] rm[3-0]. 365 kThumb2StrbRRR, // str rt,[rn,rm,LSL #imm] [111110000000] rn[19-16] rt[15-12] [000000] imm[5-4] rm[3-0]. 366 kThumb2LdrhRRI12, // ldrh rt,[rn,#imm12] [111110001011] rt[15..12] rn[19..16] imm12[11..0]. 367 kThumb2LdrshRRI12, // ldrsh rt,[rn,#imm12] [111110011011] rt[15..12] rn[19..16] imm12[11..0]. 368 kThumb2LdrbRRI12, // ldrb rt,[rn,#imm12] [111110001001] rt[15..12] rn[19..16] imm12[11..0]. 369 kThumb2LdrsbRRI12, // ldrsb rt,[rn,#imm12] [111110011001] rt[15..12] rn[19..16] imm12[11..0]. 370 kThumb2StrhRRI12, // strh rt,[rn,#imm12] [111110001010] rt[15..12] rn[19..16] imm12[11..0]. 371 kThumb2StrbRRI12, // strb rt,[rn,#imm12] [111110001000] rt[15..12] rn[19..16] imm12[11..0]. 372 kThumb2Pop, // pop [1110100010111101] list[15-0]*/ 373 kThumb2Push, // push [1110100100101101] list[15-0]*/ 374 kThumb2CmpRI12, // cmp rn, #<const> [11110] i [011011] rn[19-16] [0] imm3 [1111] imm8[7..0]. 375 kThumb2AdcRRR, // adc [111010110101] rn[19..16] [0000] rd[11..8] [0000] rm[3..0]. 376 kThumb2AndRRR, // and [111010100000] rn[19..16] [0000] rd[11..8] [0000] rm[3..0]. 377 kThumb2BicRRR, // bic [111010100010] rn[19..16] [0000] rd[11..8] [0000] rm[3..0]. 378 kThumb2CmnRR, // cmn [111010110001] rn[19..16] [0000] [1111] [0000] rm[3..0]. 379 kThumb2EorRRR, // eor [111010101000] rn[19..16] [0000] rd[11..8] [0000] rm[3..0]. 380 kThumb2MulRRR, // mul [111110110000] rn[19..16] [1111] rd[11..8] [0000] rm[3..0]. 381 kThumb2MnvRR, // mvn [11101010011011110] rd[11-8] [0000] rm[3..0]. 382 kThumb2RsubRRI8, // rsub [111100011100] rn[19..16] [0000] rd[11..8] imm8[7..0]. 383 kThumb2NegRR, // actually rsub rd, rn, #0. 384 kThumb2OrrRRR, // orr [111010100100] rn[19..16] [0000] rd[11..8] [0000] rm[3..0]. 385 kThumb2TstRR, // tst [111010100001] rn[19..16] [0000] [1111] [0000] rm[3..0]. 386 kThumb2LslRRR, // lsl [111110100000] rn[19..16] [1111] rd[11..8] [0000] rm[3..0]. 387 kThumb2LsrRRR, // lsr [111110100010] rn[19..16] [1111] rd[11..8] [0000] rm[3..0]. 388 kThumb2AsrRRR, // asr [111110100100] rn[19..16] [1111] rd[11..8] [0000] rm[3..0]. 389 kThumb2RorRRR, // ror [111110100110] rn[19..16] [1111] rd[11..8] [0000] rm[3..0]. 390 kThumb2LslRRI5, // lsl [11101010010011110] imm[14.12] rd[11..8] [00] rm[3..0]. 391 kThumb2LsrRRI5, // lsr [11101010010011110] imm[14.12] rd[11..8] [01] rm[3..0]. 392 kThumb2AsrRRI5, // asr [11101010010011110] imm[14.12] rd[11..8] [10] rm[3..0]. 393 kThumb2RorRRI5, // ror [11101010010011110] imm[14.12] rd[11..8] [11] rm[3..0]. 394 kThumb2BicRRI8, // bic [111100000010] rn[19..16] [0] imm3 rd[11..8] imm8. 395 kThumb2AndRRI8, // bic [111100000000] rn[19..16] [0] imm3 rd[11..8] imm8. 396 kThumb2OrrRRI8, // orr [111100000100] rn[19..16] [0] imm3 rd[11..8] imm8. 397 kThumb2EorRRI8, // eor [111100001000] rn[19..16] [0] imm3 rd[11..8] imm8. 398 kThumb2AddRRI8, // add [111100001000] rn[19..16] [0] imm3 rd[11..8] imm8. 399 kThumb2AdcRRI8, // adc [111100010101] rn[19..16] [0] imm3 rd[11..8] imm8. 400 kThumb2SubRRI8, // sub [111100011011] rn[19..16] [0] imm3 rd[11..8] imm8. 401 kThumb2SbcRRI8, // sbc [111100010111] rn[19..16] [0] imm3 rd[11..8] imm8. 402 kThumb2It, // it [10111111] firstcond[7-4] mask[3-0]. 403 kThumb2Fmstat, // fmstat [11101110111100011111101000010000]. 404 kThumb2Vcmpd, // vcmp [111011101] D [11011] rd[15-12] [1011] E [1] M [0] rm[3-0]. 405 kThumb2Vcmps, // vcmp [111011101] D [11010] rd[15-12] [1011] E [1] M [0] rm[3-0]. 406 kThumb2LdrPcRel12, // ldr rd,[pc,#imm12] [1111100011011111] rt[15-12] imm12[11-0]. 407 kThumb2BCond, // b<c> [1110] S cond[25-22] imm6[21-16] [10] J1 [0] J2 imm11[10..0]. 408 kThumb2Vmovd_RR, // vmov [111011101] D [110000] vd[15-12 [101101] M [0] vm[3-0]. 409 kThumb2Vmovs_RR, // vmov [111011101] D [110000] vd[15-12 [101001] M [0] vm[3-0]. 410 kThumb2Fmrs, // vmov [111011100000] vn[19-16] rt[15-12] [1010] N [0010000]. 411 kThumb2Fmsr, // vmov [111011100001] vn[19-16] rt[15-12] [1010] N [0010000]. 412 kThumb2Fmrrd, // vmov [111011000100] rt2[19-16] rt[15-12] [101100] M [1] vm[3-0]. 413 kThumb2Fmdrr, // vmov [111011000101] rt2[19-16] rt[15-12] [101100] M [1] vm[3-0]. 414 kThumb2Vabsd, // vabs.f64 [111011101] D [110000] rd[15-12] [1011110] M [0] vm[3-0]. 415 kThumb2Vabss, // vabs.f32 [111011101] D [110000] rd[15-12] [1010110] M [0] vm[3-0]. 416 kThumb2Vnegd, // vneg.f64 [111011101] D [110000] rd[15-12] [1011110] M [0] vm[3-0]. 417 kThumb2Vnegs, // vneg.f32 [111011101] D [110000] rd[15-12] [1010110] M [0] vm[3-0]. 418 kThumb2Vmovs_IMM8, // vmov.f32 [111011101] D [11] imm4h[19-16] vd[15-12] [10100000] imm4l[3-0]. 419 kThumb2Vmovd_IMM8, // vmov.f64 [111011101] D [11] imm4h[19-16] vd[15-12] [10110000] imm4l[3-0]. 420 kThumb2Mla, // mla [111110110000] rn[19-16] ra[15-12] rd[7-4] [0000] rm[3-0]. 421 kThumb2Umull, // umull [111110111010] rn[19-16], rdlo[15-12] rdhi[11-8] [0000] rm[3-0]. 422 kThumb2Ldrex, // ldrex [111010000101] rn[19-16] rt[11-8] [1111] imm8[7-0]. 423 kThumb2Strex, // strex [111010000100] rn[19-16] rt[11-8] rd[11-8] imm8[7-0]. 424 kThumb2Clrex, // clrex [111100111011111110000111100101111]. 425 kThumb2Bfi, // bfi [111100110110] rn[19-16] [0] imm3[14-12] rd[11-8] imm2[7-6] [0] msb[4-0]. 426 kThumb2Bfc, // bfc [11110011011011110] [0] imm3[14-12] rd[11-8] imm2[7-6] [0] msb[4-0]. 427 kThumb2Dmb, // dmb [1111001110111111100011110101] option[3-0]. 428 kThumb2LdrPcReln12, // ldr rd,[pc,-#imm12] [1111100011011111] rt[15-12] imm12[11-0]. 429 kThumb2Stm, // stm <list> [111010010000] rn[19-16] 000 rl[12-0]. 430 kThumbUndefined, // undefined [11011110xxxxxxxx]. 431 kThumb2VPopCS, // vpop <list of callee save fp singles (s16+). 432 kThumb2VPushCS, // vpush <list callee save fp singles (s16+). 433 kThumb2Vldms, // vldms rd, <list>. 434 kThumb2Vstms, // vstms rd, <list>. 435 kThumb2BUncond, // b <label>. 436 kThumb2MovImm16H, // similar to kThumb2MovImm16, but target high hw. 437 kThumb2AddPCR, // Thumb2 2-operand add with hard-coded PC target. 438 kThumb2Adr, // Special purpose encoding of ADR for switch tables. 439 kThumb2MovImm16LST, // Special purpose version for switch table use. 440 kThumb2MovImm16HST, // Special purpose version for switch table use. 441 kThumb2LdmiaWB, // ldmia [111010011001[ rn[19..16] mask[15..0]. 442 kThumb2SubsRRI12, // setflags encoding. 443 kThumb2OrrRRRs, // orrx [111010100101] rn[19..16] [0000] rd[11..8] [0000] rm[3..0]. 444 kThumb2Push1, // t3 encoding of push. 445 kThumb2Pop1, // t3 encoding of pop. 446 kThumb2RsubRRR, // rsb [111010111101] rn[19..16] [0000] rd[11..8] [0000] rm[3..0]. 447 kThumb2Smull, // smull [111110111000] rn[19-16], rdlo[15-12] rdhi[11-8] [0000] rm[3-0]. 448 kThumb2LdrdPcRel8, // ldrd rt, rt2, pc +-/1024. 449 kThumb2LdrdI8, // ldrd rt, rt2, [rn +-/1024]. 450 kThumb2StrdI8, // strd rt, rt2, [rn +-/1024]. 451 kArmLast, 452 }; 453 454 enum ArmOpDmbOptions { 455 kSY = 0xf, 456 kST = 0xe, 457 kISH = 0xb, 458 kISHST = 0xa, 459 kNSH = 0x7, 460 kNSHST = 0x6 461 }; 462 463 // Instruction assembly field_loc kind. 464 enum ArmEncodingKind { 465 kFmtUnused, 466 kFmtBitBlt, // Bit string using end/start. 467 kFmtDfp, // Double FP reg. 468 kFmtSfp, // Single FP reg. 469 kFmtModImm, // Shifted 8-bit immed using [26,14..12,7..0]. 470 kFmtImm16, // Zero-extended immed using [26,19..16,14..12,7..0]. 471 kFmtImm6, // Encoded branch target using [9,7..3]0. 472 kFmtImm12, // Zero-extended immediate using [26,14..12,7..0]. 473 kFmtShift, // Shift descriptor, [14..12,7..4]. 474 kFmtLsb, // least significant bit using [14..12][7..6]. 475 kFmtBWidth, // bit-field width, encoded as width-1. 476 kFmtShift5, // Shift count, [14..12,7..6]. 477 kFmtBrOffset, // Signed extended [26,11,13,21-16,10-0]:0. 478 kFmtFPImm, // Encoded floating point immediate. 479 kFmtOff24, // 24-bit Thumb2 unconditional branch encoding. 480 }; 481 482 // Struct used to define the snippet positions for each Thumb opcode. 483 struct ArmEncodingMap { 484 uint32_t skeleton; 485 struct { 486 ArmEncodingKind kind; 487 int end; // end for kFmtBitBlt, 1-bit slice end for FP regs. 488 int start; // start for kFmtBitBlt, 4-bit slice end for FP regs. 489 } field_loc[4]; 490 ArmOpcode opcode; 491 uint64_t flags; 492 const char* name; 493 const char* fmt; 494 int size; // Note: size is in bytes. 495 }; 496 497 } // namespace art 498 499 #endif // ART_COMPILER_DEX_QUICK_ARM_ARM_LIR_H_ 500
