buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 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 | |
buzbee | 1bc37c6 | 2012-11-20 13:35:41 -0800 | [diff] [blame] | 17 | #include "arm_lir.h" |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 18 | #include "codegen_arm.h" |
buzbee | 1bc37c6 | 2012-11-20 13:35:41 -0800 | [diff] [blame] | 19 | #include "../codegen_util.h" |
| 20 | #include "../ralloc_util.h" |
| 21 | |
Elliott Hughes | 11d1b0c | 2012-01-23 16:57:47 -0800 | [diff] [blame] | 22 | namespace art { |
| 23 | |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 24 | /* This file contains codegen for the Thumb ISA. */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 25 | |
buzbee | aad9438 | 2012-11-21 07:40:50 -0800 | [diff] [blame] | 26 | static int EncodeImmSingle(int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 27 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 28 | int res; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 29 | int bit_a = (value & 0x80000000) >> 31; |
| 30 | int not_bit_b = (value & 0x40000000) >> 30; |
| 31 | int bit_b = (value & 0x20000000) >> 29; |
| 32 | int b_smear = (value & 0x3e000000) >> 25; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 33 | int slice = (value & 0x01f80000) >> 19; |
| 34 | int zeroes = (value & 0x0007ffff); |
| 35 | if (zeroes != 0) |
| 36 | return -1; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 37 | if (bit_b) { |
| 38 | if ((not_bit_b != 0) || (b_smear != 0x1f)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 39 | return -1; |
| 40 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 41 | if ((not_bit_b != 1) || (b_smear != 0x0)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 42 | return -1; |
| 43 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 44 | res = (bit_a << 7) | (bit_b << 6) | slice; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 45 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 46 | } |
| 47 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 48 | static LIR* LoadFPConstantValue(CompilationUnit* cu, int r_dest, int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 49 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 50 | DCHECK(ARM_SINGLEREG(r_dest)); |
buzbee | 7da142f | 2012-11-29 16:33:42 -0800 | [diff] [blame] | 51 | if (value == 0) { |
| 52 | // TODO: we need better info about the target CPU. a vector exclusive or |
| 53 | // would probably be better here if we could rely on its existance. |
| 54 | // Load an immediate +2.0 (which encodes to 0) |
| 55 | NewLIR2(cu, kThumb2Vmovs_IMM8, r_dest, 0); |
| 56 | // +0.0 = +2.0 - +2.0 |
| 57 | return NewLIR3(cu, kThumb2Vsubs, r_dest, r_dest, r_dest); |
| 58 | } else { |
| 59 | int encoded_imm = EncodeImmSingle(value); |
| 60 | if (encoded_imm >= 0) { |
| 61 | return NewLIR2(cu, kThumb2Vmovs_IMM8, r_dest, encoded_imm); |
| 62 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 63 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 64 | LIR* data_target = ScanLiteralPool(cu->literal_list, value, 0); |
| 65 | if (data_target == NULL) { |
| 66 | data_target = AddWordData(cu, &cu->literal_list, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 67 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 68 | LIR* load_pc_rel = RawLIR(cu, cu->current_dalvik_offset, kThumb2Vldrs, |
| 69 | r_dest, r15pc, 0, 0, 0, data_target); |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 70 | SetMemRefType(cu, load_pc_rel, true, kLiteral); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 71 | load_pc_rel->alias_info = reinterpret_cast<uintptr_t>(data_target); |
| 72 | AppendLIR(cu, load_pc_rel); |
| 73 | return load_pc_rel; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 74 | } |
| 75 | |
buzbee | aad9438 | 2012-11-21 07:40:50 -0800 | [diff] [blame] | 76 | static int LeadingZeros(uint32_t val) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 77 | { |
buzbee | eaf09bc | 2012-11-15 14:51:41 -0800 | [diff] [blame] | 78 | uint32_t alt; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 79 | int n; |
| 80 | int count; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 81 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 82 | count = 16; |
| 83 | n = 32; |
| 84 | do { |
| 85 | alt = val >> count; |
| 86 | if (alt != 0) { |
| 87 | n = n - count; |
| 88 | val = alt; |
| 89 | } |
| 90 | count >>= 1; |
| 91 | } while (count); |
| 92 | return n - val; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 93 | } |
| 94 | |
| 95 | /* |
| 96 | * Determine whether value can be encoded as a Thumb2 modified |
| 97 | * immediate. If not, return -1. If so, return i:imm3:a:bcdefgh form. |
| 98 | */ |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 99 | int ArmCodegen::ModifiedImmediate(uint32_t value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 100 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 101 | int z_leading; |
| 102 | int z_trailing; |
buzbee | eaf09bc | 2012-11-15 14:51:41 -0800 | [diff] [blame] | 103 | uint32_t b0 = value & 0xff; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 104 | |
| 105 | /* Note: case of value==0 must use 0:000:0:0000000 encoding */ |
| 106 | if (value <= 0xFF) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 107 | return b0; // 0:000:a:bcdefgh |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 108 | if (value == ((b0 << 16) | b0)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 109 | return (0x1 << 8) | b0; /* 0:001:a:bcdefgh */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 110 | if (value == ((b0 << 24) | (b0 << 16) | (b0 << 8) | b0)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 111 | return (0x3 << 8) | b0; /* 0:011:a:bcdefgh */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 112 | b0 = (value >> 8) & 0xff; |
| 113 | if (value == ((b0 << 24) | (b0 << 8))) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 114 | return (0x2 << 8) | b0; /* 0:010:a:bcdefgh */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 115 | /* Can we do it with rotation? */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 116 | z_leading = LeadingZeros(value); |
| 117 | z_trailing = 32 - LeadingZeros(~value & (value - 1)); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 118 | /* A run of eight or fewer active bits? */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 119 | if ((z_leading + z_trailing) < 24) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 120 | return -1; /* No - bail */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 121 | /* left-justify the constant, discarding msb (known to be 1) */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 122 | value <<= z_leading + 1; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 123 | /* Create bcdefgh */ |
| 124 | value >>= 25; |
| 125 | /* Put it all together */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 126 | return value | ((0x8 + z_leading) << 7); /* [01000..11111]:bcdefgh */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 127 | } |
| 128 | |
buzbee | e6285f9 | 2012-12-06 15:57:46 -0800 | [diff] [blame^] | 129 | bool ArmCodegen::InexpensiveConstant(int reg, int value) |
| 130 | { |
| 131 | bool res = false; |
| 132 | if (ARM_FPREG(reg)) { |
| 133 | res = (EncodeImmSingle(value) >= 0); |
| 134 | } else { |
| 135 | if (ARM_LOWREG(reg) && (value >= 0) && (IsUint(8, value))) { |
| 136 | res = true; |
| 137 | } else { |
| 138 | res = (ModifiedImmediate(value) >= 0) || (ModifiedImmediate(~value) >= 0); |
| 139 | } |
| 140 | } |
| 141 | return res; |
| 142 | } |
| 143 | |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 144 | /* |
| 145 | * Load a immediate using a shortcut if possible; otherwise |
| 146 | * grab from the per-translation literal pool. |
| 147 | * |
| 148 | * No additional register clobbering operation performed. Use this version when |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 149 | * 1) r_dest is freshly returned from AllocTemp or |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 150 | * 2) The codegen is under fixed register usage |
| 151 | */ |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 152 | LIR* ArmCodegen::LoadConstantNoClobber(CompilationUnit* cu, int r_dest, int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 153 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 154 | LIR* res; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 155 | int mod_imm; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 156 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 157 | if (ARM_FPREG(r_dest)) { |
| 158 | return LoadFPConstantValue(cu, r_dest, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 159 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 160 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 161 | /* See if the value can be constructed cheaply */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 162 | if (ARM_LOWREG(r_dest) && (value >= 0) && (value <= 255)) { |
| 163 | return NewLIR2(cu, kThumbMovImm, r_dest, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 164 | } |
| 165 | /* Check Modified immediate special cases */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 166 | mod_imm = ModifiedImmediate(value); |
| 167 | if (mod_imm >= 0) { |
| 168 | res = NewLIR2(cu, kThumb2MovImmShift, r_dest, mod_imm); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 169 | return res; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 170 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 171 | mod_imm = ModifiedImmediate(~value); |
| 172 | if (mod_imm >= 0) { |
| 173 | res = NewLIR2(cu, kThumb2MvnImm12, r_dest, mod_imm); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 174 | return res; |
| 175 | } |
| 176 | /* 16-bit immediate? */ |
| 177 | if ((value & 0xffff) == value) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 178 | res = NewLIR2(cu, kThumb2MovImm16, r_dest, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 179 | return res; |
| 180 | } |
| 181 | /* No shortcut - go ahead and use literal pool */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 182 | LIR* data_target = ScanLiteralPool(cu->literal_list, value, 0); |
| 183 | if (data_target == NULL) { |
| 184 | data_target = AddWordData(cu, &cu->literal_list, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 185 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 186 | LIR* load_pc_rel = RawLIR(cu, cu->current_dalvik_offset, |
| 187 | kThumb2LdrPcRel12, r_dest, 0, 0, 0, 0, data_target); |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 188 | SetMemRefType(cu, load_pc_rel, true, kLiteral); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 189 | load_pc_rel->alias_info = reinterpret_cast<uintptr_t>(data_target); |
| 190 | res = load_pc_rel; |
| 191 | AppendLIR(cu, load_pc_rel); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 192 | |
| 193 | /* |
| 194 | * To save space in the constant pool, we use the ADD_RRI8 instruction to |
| 195 | * add up to 255 to an existing constant value. |
| 196 | */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 197 | if (data_target->operands[0] != value) { |
| 198 | OpRegImm(cu, kOpAdd, r_dest, value - data_target->operands[0]); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 199 | } |
| 200 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 201 | } |
| 202 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 203 | LIR* ArmCodegen::OpUnconditionalBranch(CompilationUnit* cu, LIR* target) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 204 | { |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 205 | LIR* res = NewLIR1(cu, kThumbBUncond, 0 /* offset to be patched during assembly*/); |
| 206 | res->target = target; |
| 207 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 208 | } |
| 209 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 210 | LIR* ArmCodegen::OpCondBranch(CompilationUnit* cu, ConditionCode cc, LIR* target) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 211 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 212 | LIR* branch = NewLIR2(cu, kThumb2BCond, 0 /* offset to be patched */, |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 213 | ArmConditionEncoding(cc)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 214 | branch->target = target; |
| 215 | return branch; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 216 | } |
| 217 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 218 | LIR* ArmCodegen::OpReg(CompilationUnit* cu, OpKind op, int r_dest_src) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 219 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 220 | ArmOpcode opcode = kThumbBkpt; |
| 221 | switch (op) { |
| 222 | case kOpBlx: |
| 223 | opcode = kThumbBlxR; |
| 224 | break; |
| 225 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 226 | LOG(FATAL) << "Bad opcode " << op; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 227 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 228 | return NewLIR1(cu, opcode, r_dest_src); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 229 | } |
| 230 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 231 | LIR* ArmCodegen::OpRegRegShift(CompilationUnit* cu, OpKind op, int r_dest_src1, int r_src2, |
| 232 | int shift) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 233 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 234 | bool thumb_form = ((shift == 0) && ARM_LOWREG(r_dest_src1) && ARM_LOWREG(r_src2)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 235 | ArmOpcode opcode = kThumbBkpt; |
| 236 | switch (op) { |
| 237 | case kOpAdc: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 238 | opcode = (thumb_form) ? kThumbAdcRR : kThumb2AdcRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 239 | break; |
| 240 | case kOpAnd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 241 | opcode = (thumb_form) ? kThumbAndRR : kThumb2AndRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 242 | break; |
| 243 | case kOpBic: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 244 | opcode = (thumb_form) ? kThumbBicRR : kThumb2BicRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 245 | break; |
| 246 | case kOpCmn: |
| 247 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 248 | opcode = (thumb_form) ? kThumbCmnRR : kThumb2CmnRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 249 | break; |
| 250 | case kOpCmp: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 251 | if (thumb_form) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 252 | opcode = kThumbCmpRR; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 253 | else if ((shift == 0) && !ARM_LOWREG(r_dest_src1) && !ARM_LOWREG(r_src2)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 254 | opcode = kThumbCmpHH; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 255 | else if ((shift == 0) && ARM_LOWREG(r_dest_src1)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 256 | opcode = kThumbCmpLH; |
| 257 | else if (shift == 0) |
| 258 | opcode = kThumbCmpHL; |
| 259 | else |
| 260 | opcode = kThumb2CmpRR; |
| 261 | break; |
| 262 | case kOpXor: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 263 | opcode = (thumb_form) ? kThumbEorRR : kThumb2EorRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 264 | break; |
| 265 | case kOpMov: |
| 266 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 267 | if (ARM_LOWREG(r_dest_src1) && ARM_LOWREG(r_src2)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 268 | opcode = kThumbMovRR; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 269 | else if (!ARM_LOWREG(r_dest_src1) && !ARM_LOWREG(r_src2)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 270 | opcode = kThumbMovRR_H2H; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 271 | else if (ARM_LOWREG(r_dest_src1)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 272 | opcode = kThumbMovRR_H2L; |
| 273 | else |
| 274 | opcode = kThumbMovRR_L2H; |
| 275 | break; |
| 276 | case kOpMul: |
| 277 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 278 | opcode = (thumb_form) ? kThumbMul : kThumb2MulRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 279 | break; |
| 280 | case kOpMvn: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 281 | opcode = (thumb_form) ? kThumbMvn : kThumb2MnvRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 282 | break; |
| 283 | case kOpNeg: |
| 284 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 285 | opcode = (thumb_form) ? kThumbNeg : kThumb2NegRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 286 | break; |
| 287 | case kOpOr: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 288 | opcode = (thumb_form) ? kThumbOrr : kThumb2OrrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 289 | break; |
| 290 | case kOpSbc: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 291 | opcode = (thumb_form) ? kThumbSbc : kThumb2SbcRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 292 | break; |
| 293 | case kOpTst: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 294 | opcode = (thumb_form) ? kThumbTst : kThumb2TstRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 295 | break; |
| 296 | case kOpLsl: |
| 297 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 298 | opcode = (thumb_form) ? kThumbLslRR : kThumb2LslRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 299 | break; |
| 300 | case kOpLsr: |
| 301 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 302 | opcode = (thumb_form) ? kThumbLsrRR : kThumb2LsrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 303 | break; |
| 304 | case kOpAsr: |
| 305 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 306 | opcode = (thumb_form) ? kThumbAsrRR : kThumb2AsrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 307 | break; |
| 308 | case kOpRor: |
| 309 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 310 | opcode = (thumb_form) ? kThumbRorRR : kThumb2RorRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 311 | break; |
| 312 | case kOpAdd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 313 | opcode = (thumb_form) ? kThumbAddRRR : kThumb2AddRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 314 | break; |
| 315 | case kOpSub: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 316 | opcode = (thumb_form) ? kThumbSubRRR : kThumb2SubRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 317 | break; |
| 318 | case kOp2Byte: |
| 319 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 320 | return NewLIR4(cu, kThumb2Sbfx, r_dest_src1, r_src2, 0, 8); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 321 | case kOp2Short: |
| 322 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 323 | return NewLIR4(cu, kThumb2Sbfx, r_dest_src1, r_src2, 0, 16); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 324 | case kOp2Char: |
| 325 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 326 | return NewLIR4(cu, kThumb2Ubfx, r_dest_src1, r_src2, 0, 16); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 327 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 328 | LOG(FATAL) << "Bad opcode: " << op; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 329 | break; |
| 330 | } |
| 331 | DCHECK_GE(static_cast<int>(opcode), 0); |
| 332 | if (EncodingMap[opcode].flags & IS_BINARY_OP) |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 333 | return NewLIR2(cu, opcode, r_dest_src1, r_src2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 334 | else if (EncodingMap[opcode].flags & IS_TERTIARY_OP) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 335 | if (EncodingMap[opcode].field_loc[2].kind == kFmtShift) |
| 336 | return NewLIR3(cu, opcode, r_dest_src1, r_src2, shift); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 337 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 338 | return NewLIR3(cu, opcode, r_dest_src1, r_dest_src1, r_src2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 339 | } else if (EncodingMap[opcode].flags & IS_QUAD_OP) |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 340 | return NewLIR4(cu, opcode, r_dest_src1, r_dest_src1, r_src2, shift); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 341 | else { |
| 342 | LOG(FATAL) << "Unexpected encoding operand count"; |
| 343 | return NULL; |
| 344 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 345 | } |
| 346 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 347 | LIR* ArmCodegen::OpRegReg(CompilationUnit* cu, OpKind op, int r_dest_src1, int r_src2) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 348 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 349 | return OpRegRegShift(cu, op, r_dest_src1, r_src2, 0); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 350 | } |
| 351 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 352 | LIR* ArmCodegen::OpRegRegRegShift(CompilationUnit* cu, OpKind op, int r_dest, int r_src1, |
| 353 | int r_src2, int shift) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 354 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 355 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 356 | bool thumb_form = (shift == 0) && ARM_LOWREG(r_dest) && ARM_LOWREG(r_src1) && |
| 357 | ARM_LOWREG(r_src2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 358 | switch (op) { |
| 359 | case kOpAdd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 360 | opcode = (thumb_form) ? kThumbAddRRR : kThumb2AddRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 361 | break; |
| 362 | case kOpSub: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 363 | opcode = (thumb_form) ? kThumbSubRRR : kThumb2SubRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 364 | break; |
| 365 | case kOpRsub: |
| 366 | opcode = kThumb2RsubRRR; |
| 367 | break; |
| 368 | case kOpAdc: |
| 369 | opcode = kThumb2AdcRRR; |
| 370 | break; |
| 371 | case kOpAnd: |
| 372 | opcode = kThumb2AndRRR; |
| 373 | break; |
| 374 | case kOpBic: |
| 375 | opcode = kThumb2BicRRR; |
| 376 | break; |
| 377 | case kOpXor: |
| 378 | opcode = kThumb2EorRRR; |
| 379 | break; |
| 380 | case kOpMul: |
| 381 | DCHECK_EQ(shift, 0); |
| 382 | opcode = kThumb2MulRRR; |
| 383 | break; |
| 384 | case kOpOr: |
| 385 | opcode = kThumb2OrrRRR; |
| 386 | break; |
| 387 | case kOpSbc: |
| 388 | opcode = kThumb2SbcRRR; |
| 389 | break; |
| 390 | case kOpLsl: |
| 391 | DCHECK_EQ(shift, 0); |
| 392 | opcode = kThumb2LslRRR; |
| 393 | break; |
| 394 | case kOpLsr: |
| 395 | DCHECK_EQ(shift, 0); |
| 396 | opcode = kThumb2LsrRRR; |
| 397 | break; |
| 398 | case kOpAsr: |
| 399 | DCHECK_EQ(shift, 0); |
| 400 | opcode = kThumb2AsrRRR; |
| 401 | break; |
| 402 | case kOpRor: |
| 403 | DCHECK_EQ(shift, 0); |
| 404 | opcode = kThumb2RorRRR; |
| 405 | break; |
| 406 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 407 | LOG(FATAL) << "Bad opcode: " << op; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 408 | break; |
| 409 | } |
| 410 | DCHECK_GE(static_cast<int>(opcode), 0); |
| 411 | if (EncodingMap[opcode].flags & IS_QUAD_OP) |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 412 | return NewLIR4(cu, opcode, r_dest, r_src1, r_src2, shift); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 413 | else { |
| 414 | DCHECK(EncodingMap[opcode].flags & IS_TERTIARY_OP); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 415 | return NewLIR3(cu, opcode, r_dest, r_src1, r_src2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 416 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 417 | } |
| 418 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 419 | LIR* ArmCodegen::OpRegRegReg(CompilationUnit* cu, OpKind op, int r_dest, int r_src1, int r_src2) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 420 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 421 | return OpRegRegRegShift(cu, op, r_dest, r_src1, r_src2, 0); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 422 | } |
| 423 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 424 | LIR* ArmCodegen::OpRegRegImm(CompilationUnit* cu, OpKind op, int r_dest, int r_src1, int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 425 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 426 | LIR* res; |
| 427 | bool neg = (value < 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 428 | int abs_value = (neg) ? -value : value; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 429 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 430 | ArmOpcode alt_opcode = kThumbBkpt; |
| 431 | bool all_low_regs = (ARM_LOWREG(r_dest) && ARM_LOWREG(r_src1)); |
| 432 | int mod_imm = ModifiedImmediate(value); |
| 433 | int mod_imm_neg = ModifiedImmediate(-value); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 434 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 435 | switch (op) { |
| 436 | case kOpLsl: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 437 | if (all_low_regs) |
| 438 | return NewLIR3(cu, kThumbLslRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 439 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 440 | return NewLIR3(cu, kThumb2LslRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 441 | case kOpLsr: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 442 | if (all_low_regs) |
| 443 | return NewLIR3(cu, kThumbLsrRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 444 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 445 | return NewLIR3(cu, kThumb2LsrRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 446 | case kOpAsr: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 447 | if (all_low_regs) |
| 448 | return NewLIR3(cu, kThumbAsrRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 449 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 450 | return NewLIR3(cu, kThumb2AsrRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 451 | case kOpRor: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 452 | return NewLIR3(cu, kThumb2RorRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 453 | case kOpAdd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 454 | if (ARM_LOWREG(r_dest) && (r_src1 == r13sp) && |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 455 | (value <= 1020) && ((value & 0x3)==0)) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 456 | return NewLIR3(cu, kThumbAddSpRel, r_dest, r_src1, value >> 2); |
| 457 | } else if (ARM_LOWREG(r_dest) && (r_src1 == r15pc) && |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 458 | (value <= 1020) && ((value & 0x3)==0)) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 459 | return NewLIR3(cu, kThumbAddPcRel, r_dest, r_src1, value >> 2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 460 | } |
| 461 | // Note: intentional fallthrough |
| 462 | case kOpSub: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 463 | if (all_low_regs && ((abs_value & 0x7) == abs_value)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 464 | if (op == kOpAdd) |
| 465 | opcode = (neg) ? kThumbSubRRI3 : kThumbAddRRI3; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 466 | else |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 467 | opcode = (neg) ? kThumbAddRRI3 : kThumbSubRRI3; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 468 | return NewLIR3(cu, opcode, r_dest, r_src1, abs_value); |
| 469 | } else if ((abs_value & 0xff) == abs_value) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 470 | if (op == kOpAdd) |
| 471 | opcode = (neg) ? kThumb2SubRRI12 : kThumb2AddRRI12; |
| 472 | else |
| 473 | opcode = (neg) ? kThumb2AddRRI12 : kThumb2SubRRI12; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 474 | return NewLIR3(cu, opcode, r_dest, r_src1, abs_value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 475 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 476 | if (mod_imm_neg >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 477 | op = (op == kOpAdd) ? kOpSub : kOpAdd; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 478 | mod_imm = mod_imm_neg; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 479 | } |
| 480 | if (op == kOpSub) { |
| 481 | opcode = kThumb2SubRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 482 | alt_opcode = kThumb2SubRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 483 | } else { |
| 484 | opcode = kThumb2AddRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 485 | alt_opcode = kThumb2AddRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 486 | } |
| 487 | break; |
| 488 | case kOpAdc: |
| 489 | opcode = kThumb2AdcRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 490 | alt_opcode = kThumb2AdcRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 491 | break; |
| 492 | case kOpSbc: |
| 493 | opcode = kThumb2SbcRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 494 | alt_opcode = kThumb2SbcRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 495 | break; |
| 496 | case kOpOr: |
| 497 | opcode = kThumb2OrrRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 498 | alt_opcode = kThumb2OrrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 499 | break; |
| 500 | case kOpAnd: |
| 501 | opcode = kThumb2AndRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 502 | alt_opcode = kThumb2AndRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 503 | break; |
| 504 | case kOpXor: |
| 505 | opcode = kThumb2EorRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 506 | alt_opcode = kThumb2EorRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 507 | break; |
| 508 | case kOpMul: |
| 509 | //TUNING: power of 2, shift & add |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 510 | mod_imm = -1; |
| 511 | alt_opcode = kThumb2MulRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 512 | break; |
| 513 | case kOpCmp: { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 514 | int mod_imm = ModifiedImmediate(value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 515 | LIR* res; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 516 | if (mod_imm >= 0) { |
| 517 | res = NewLIR2(cu, kThumb2CmpRI8, r_src1, mod_imm); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 518 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 519 | int r_tmp = AllocTemp(cu); |
| 520 | res = LoadConstant(cu, r_tmp, value); |
| 521 | OpRegReg(cu, kOpCmp, r_src1, r_tmp); |
| 522 | FreeTemp(cu, r_tmp); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 523 | } |
| 524 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 525 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 526 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 527 | LOG(FATAL) << "Bad opcode: " << op; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 528 | } |
| 529 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 530 | if (mod_imm >= 0) { |
| 531 | return NewLIR3(cu, opcode, r_dest, r_src1, mod_imm); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 532 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 533 | int r_scratch = AllocTemp(cu); |
| 534 | LoadConstant(cu, r_scratch, value); |
| 535 | if (EncodingMap[alt_opcode].flags & IS_QUAD_OP) |
| 536 | res = NewLIR4(cu, alt_opcode, r_dest, r_src1, r_scratch, 0); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 537 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 538 | res = NewLIR3(cu, alt_opcode, r_dest, r_src1, r_scratch); |
| 539 | FreeTemp(cu, r_scratch); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 540 | return res; |
| 541 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 542 | } |
| 543 | |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 544 | /* Handle Thumb-only variants here - otherwise punt to OpRegRegImm */ |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 545 | LIR* ArmCodegen::OpRegImm(CompilationUnit* cu, OpKind op, int r_dest_src1, int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 546 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 547 | bool neg = (value < 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 548 | int abs_value = (neg) ? -value : value; |
| 549 | bool short_form = (((abs_value & 0xff) == abs_value) && ARM_LOWREG(r_dest_src1)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 550 | ArmOpcode opcode = kThumbBkpt; |
| 551 | switch (op) { |
| 552 | case kOpAdd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 553 | if ( !neg && (r_dest_src1 == r13sp) && (value <= 508)) { /* sp */ |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 554 | DCHECK_EQ((value & 0x3), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 555 | return NewLIR1(cu, kThumbAddSpI7, value >> 2); |
| 556 | } else if (short_form) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 557 | opcode = (neg) ? kThumbSubRI8 : kThumbAddRI8; |
| 558 | } |
| 559 | break; |
| 560 | case kOpSub: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 561 | if (!neg && (r_dest_src1 == r13sp) && (value <= 508)) { /* sp */ |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 562 | DCHECK_EQ((value & 0x3), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 563 | return NewLIR1(cu, kThumbSubSpI7, value >> 2); |
| 564 | } else if (short_form) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 565 | opcode = (neg) ? kThumbAddRI8 : kThumbSubRI8; |
| 566 | } |
| 567 | break; |
| 568 | case kOpCmp: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 569 | if (ARM_LOWREG(r_dest_src1) && short_form) |
| 570 | opcode = (short_form) ? kThumbCmpRI8 : kThumbCmpRR; |
| 571 | else if (ARM_LOWREG(r_dest_src1)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 572 | opcode = kThumbCmpRR; |
| 573 | else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 574 | short_form = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 575 | opcode = kThumbCmpHL; |
| 576 | } |
| 577 | break; |
| 578 | default: |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 579 | /* Punt to OpRegRegImm - if bad case catch it there */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 580 | short_form = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 581 | break; |
| 582 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 583 | if (short_form) |
| 584 | return NewLIR2(cu, opcode, r_dest_src1, abs_value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 585 | else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 586 | return OpRegRegImm(cu, op, r_dest_src1, r_dest_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 587 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 588 | } |
| 589 | |
| 590 | /* |
| 591 | * Determine whether value can be encoded as a Thumb2 floating point |
| 592 | * immediate. If not, return -1. If so return encoded 8-bit value. |
| 593 | */ |
buzbee | aad9438 | 2012-11-21 07:40:50 -0800 | [diff] [blame] | 594 | static int EncodeImmDoubleHigh(int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 595 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 596 | int res; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 597 | int bit_a = (value & 0x80000000) >> 31; |
| 598 | int not_bit_b = (value & 0x40000000) >> 30; |
| 599 | int bit_b = (value & 0x20000000) >> 29; |
| 600 | int b_smear = (value & 0x3fc00000) >> 22; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 601 | int slice = (value & 0x003f0000) >> 16; |
| 602 | int zeroes = (value & 0x0000ffff); |
| 603 | if (zeroes != 0) |
| 604 | return -1; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 605 | if (bit_b) { |
| 606 | if ((not_bit_b != 0) || (b_smear != 0xff)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 607 | return -1; |
| 608 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 609 | if ((not_bit_b != 1) || (b_smear != 0x0)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 610 | return -1; |
| 611 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 612 | res = (bit_a << 7) | (bit_b << 6) | slice; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 613 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 614 | } |
| 615 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 616 | static int EncodeImmDouble(int val_lo, int val_hi) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 617 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 618 | int res = -1; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 619 | if (val_lo == 0) |
| 620 | res = EncodeImmDoubleHigh(val_hi); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 621 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 622 | } |
| 623 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 624 | LIR* ArmCodegen::LoadConstantValueWide(CompilationUnit* cu, int r_dest_lo, int r_dest_hi, |
| 625 | int val_lo, int val_hi) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 626 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 627 | LIR* res; |
buzbee | 7da142f | 2012-11-29 16:33:42 -0800 | [diff] [blame] | 628 | int target_reg = S2d(r_dest_lo, r_dest_hi); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 629 | if (ARM_FPREG(r_dest_lo)) { |
buzbee | 7da142f | 2012-11-29 16:33:42 -0800 | [diff] [blame] | 630 | if ((val_lo == 0) && (val_hi == 0)) { |
| 631 | // TODO: we need better info about the target CPU. a vector exclusive or |
| 632 | // would probably be better here if we could rely on its existance. |
| 633 | // Load an immediate +2.0 (which encodes to 0) |
| 634 | NewLIR2(cu, kThumb2Vmovd_IMM8, target_reg, 0); |
| 635 | // +0.0 = +2.0 - +2.0 |
| 636 | res = NewLIR3(cu, kThumb2Vsubd, target_reg, target_reg, target_reg); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 637 | } else { |
buzbee | 7da142f | 2012-11-29 16:33:42 -0800 | [diff] [blame] | 638 | int encoded_imm = EncodeImmDouble(val_lo, val_hi); |
| 639 | if (encoded_imm >= 0) { |
| 640 | res = NewLIR2(cu, kThumb2Vmovd_IMM8, target_reg, encoded_imm); |
| 641 | } else { |
| 642 | LIR* data_target = ScanLiteralPoolWide(cu->literal_list, val_lo, val_hi); |
| 643 | if (data_target == NULL) { |
| 644 | data_target = AddWideData(cu, &cu->literal_list, val_lo, val_hi); |
| 645 | } |
| 646 | LIR* load_pc_rel = |
| 647 | RawLIR(cu, cu->current_dalvik_offset, kThumb2Vldrd, |
| 648 | target_reg, r15pc, 0, 0, 0, data_target); |
| 649 | SetMemRefType(cu, load_pc_rel, true, kLiteral); |
| 650 | load_pc_rel->alias_info = reinterpret_cast<uintptr_t>(data_target); |
| 651 | AppendLIR(cu, load_pc_rel); |
| 652 | res = load_pc_rel; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 653 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 654 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 655 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 656 | res = LoadConstantNoClobber(cu, r_dest_lo, val_lo); |
| 657 | LoadConstantNoClobber(cu, r_dest_hi, val_hi); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 658 | } |
| 659 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 660 | } |
| 661 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 662 | int ArmCodegen::EncodeShift(int code, int amount) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 663 | return ((amount & 0x1f) << 2) | code; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 664 | } |
| 665 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 666 | LIR* ArmCodegen::LoadBaseIndexed(CompilationUnit* cu, int rBase, int r_index, int r_dest, |
| 667 | int scale, OpSize size) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 668 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 669 | bool all_low_regs = ARM_LOWREG(rBase) && ARM_LOWREG(r_index) && ARM_LOWREG(r_dest); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 670 | LIR* load; |
| 671 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 672 | bool thumb_form = (all_low_regs && (scale == 0)); |
| 673 | int reg_ptr; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 674 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 675 | if (ARM_FPREG(r_dest)) { |
| 676 | if (ARM_SINGLEREG(r_dest)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 677 | DCHECK((size == kWord) || (size == kSingle)); |
| 678 | opcode = kThumb2Vldrs; |
| 679 | size = kSingle; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 680 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 681 | DCHECK(ARM_DOUBLEREG(r_dest)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 682 | DCHECK((size == kLong) || (size == kDouble)); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 683 | DCHECK_EQ((r_dest & 0x1), 0); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 684 | opcode = kThumb2Vldrd; |
| 685 | size = kDouble; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 686 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 687 | } else { |
| 688 | if (size == kSingle) |
| 689 | size = kWord; |
| 690 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 691 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 692 | switch (size) { |
| 693 | case kDouble: // fall-through |
| 694 | case kSingle: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 695 | reg_ptr = AllocTemp(cu); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 696 | if (scale) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 697 | NewLIR4(cu, kThumb2AddRRR, reg_ptr, rBase, r_index, |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 698 | EncodeShift(kArmLsl, scale)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 699 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 700 | OpRegRegReg(cu, kOpAdd, reg_ptr, rBase, r_index); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 701 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 702 | load = NewLIR3(cu, opcode, r_dest, reg_ptr, 0); |
| 703 | FreeTemp(cu, reg_ptr); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 704 | return load; |
| 705 | case kWord: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 706 | opcode = (thumb_form) ? kThumbLdrRRR : kThumb2LdrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 707 | break; |
| 708 | case kUnsignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 709 | opcode = (thumb_form) ? kThumbLdrhRRR : kThumb2LdrhRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 710 | break; |
| 711 | case kSignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 712 | opcode = (thumb_form) ? kThumbLdrshRRR : kThumb2LdrshRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 713 | break; |
| 714 | case kUnsignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 715 | opcode = (thumb_form) ? kThumbLdrbRRR : kThumb2LdrbRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 716 | break; |
| 717 | case kSignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 718 | opcode = (thumb_form) ? kThumbLdrsbRRR : kThumb2LdrsbRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 719 | break; |
| 720 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 721 | LOG(FATAL) << "Bad size: " << size; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 722 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 723 | if (thumb_form) |
| 724 | load = NewLIR3(cu, opcode, r_dest, rBase, r_index); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 725 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 726 | load = NewLIR4(cu, opcode, r_dest, rBase, r_index, scale); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 727 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 728 | return load; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 729 | } |
| 730 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 731 | LIR* ArmCodegen::StoreBaseIndexed(CompilationUnit* cu, int rBase, int r_index, int r_src, |
| 732 | int scale, OpSize size) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 733 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 734 | bool all_low_regs = ARM_LOWREG(rBase) && ARM_LOWREG(r_index) && ARM_LOWREG(r_src); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 735 | LIR* store; |
| 736 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 737 | bool thumb_form = (all_low_regs && (scale == 0)); |
| 738 | int reg_ptr; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 739 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 740 | if (ARM_FPREG(r_src)) { |
| 741 | if (ARM_SINGLEREG(r_src)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 742 | DCHECK((size == kWord) || (size == kSingle)); |
| 743 | opcode = kThumb2Vstrs; |
| 744 | size = kSingle; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 745 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 746 | DCHECK(ARM_DOUBLEREG(r_src)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 747 | DCHECK((size == kLong) || (size == kDouble)); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 748 | DCHECK_EQ((r_src & 0x1), 0); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 749 | opcode = kThumb2Vstrd; |
| 750 | size = kDouble; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 751 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 752 | } else { |
| 753 | if (size == kSingle) |
| 754 | size = kWord; |
| 755 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 756 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 757 | switch (size) { |
| 758 | case kDouble: // fall-through |
| 759 | case kSingle: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 760 | reg_ptr = AllocTemp(cu); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 761 | if (scale) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 762 | NewLIR4(cu, kThumb2AddRRR, reg_ptr, rBase, r_index, |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 763 | EncodeShift(kArmLsl, scale)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 764 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 765 | OpRegRegReg(cu, kOpAdd, reg_ptr, rBase, r_index); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 766 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 767 | store = NewLIR3(cu, opcode, r_src, reg_ptr, 0); |
| 768 | FreeTemp(cu, reg_ptr); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 769 | return store; |
| 770 | case kWord: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 771 | opcode = (thumb_form) ? kThumbStrRRR : kThumb2StrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 772 | break; |
| 773 | case kUnsignedHalf: |
| 774 | case kSignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 775 | opcode = (thumb_form) ? kThumbStrhRRR : kThumb2StrhRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 776 | break; |
| 777 | case kUnsignedByte: |
| 778 | case kSignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 779 | opcode = (thumb_form) ? kThumbStrbRRR : kThumb2StrbRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 780 | break; |
| 781 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 782 | LOG(FATAL) << "Bad size: " << size; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 783 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 784 | if (thumb_form) |
| 785 | store = NewLIR3(cu, opcode, r_src, rBase, r_index); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 786 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 787 | store = NewLIR4(cu, opcode, r_src, rBase, r_index, scale); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 788 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 789 | return store; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 790 | } |
| 791 | |
| 792 | /* |
| 793 | * Load value from base + displacement. Optionally perform null check |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 794 | * on base (which must have an associated s_reg and MIR). If not |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 795 | * performing null check, incoming MIR can be null. |
| 796 | */ |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 797 | LIR* ArmCodegen::LoadBaseDispBody(CompilationUnit* cu, int rBase, int displacement, int r_dest, |
| 798 | int r_dest_hi, OpSize size, int s_reg) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 799 | { |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 800 | Codegen* cg = cu->cg.get(); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 801 | LIR* res; |
| 802 | LIR* load; |
| 803 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 804 | bool short_form = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 805 | bool thumb2Form = (displacement < 4092 && displacement >= 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 806 | bool all_low_regs = (ARM_LOWREG(rBase) && ARM_LOWREG(r_dest)); |
| 807 | int encoded_disp = displacement; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 808 | bool is64bit = false; |
| 809 | switch (size) { |
| 810 | case kDouble: |
| 811 | case kLong: |
| 812 | is64bit = true; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 813 | if (ARM_FPREG(r_dest)) { |
| 814 | if (ARM_SINGLEREG(r_dest)) { |
| 815 | DCHECK(ARM_FPREG(r_dest_hi)); |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 816 | r_dest = cg->S2d(r_dest, r_dest_hi); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 817 | } |
| 818 | opcode = kThumb2Vldrd; |
| 819 | if (displacement <= 1020) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 820 | short_form = true; |
| 821 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 822 | } |
| 823 | break; |
| 824 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 825 | res = LoadBaseDispBody(cu, rBase, displacement, r_dest, |
| 826 | -1, kWord, s_reg); |
| 827 | LoadBaseDispBody(cu, rBase, displacement + 4, r_dest_hi, |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 828 | -1, kWord, INVALID_SREG); |
| 829 | return res; |
| 830 | } |
| 831 | case kSingle: |
| 832 | case kWord: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 833 | if (ARM_FPREG(r_dest)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 834 | opcode = kThumb2Vldrs; |
| 835 | if (displacement <= 1020) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 836 | short_form = true; |
| 837 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 838 | } |
| 839 | break; |
| 840 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 841 | if (ARM_LOWREG(r_dest) && (rBase == r15pc) && |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 842 | (displacement <= 1020) && (displacement >= 0)) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 843 | short_form = true; |
| 844 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 845 | opcode = kThumbLdrPcRel; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 846 | } else if (ARM_LOWREG(r_dest) && (rBase == r13sp) && |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 847 | (displacement <= 1020) && (displacement >= 0)) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 848 | short_form = true; |
| 849 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 850 | opcode = kThumbLdrSpRel; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 851 | } else if (all_low_regs && displacement < 128 && displacement >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 852 | DCHECK_EQ((displacement & 0x3), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 853 | short_form = true; |
| 854 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 855 | opcode = kThumbLdrRRI5; |
| 856 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 857 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 858 | opcode = kThumb2LdrRRI12; |
| 859 | } |
| 860 | break; |
| 861 | case kUnsignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 862 | if (all_low_regs && displacement < 64 && displacement >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 863 | DCHECK_EQ((displacement & 0x1), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 864 | short_form = true; |
| 865 | encoded_disp >>= 1; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 866 | opcode = kThumbLdrhRRI5; |
| 867 | } else if (displacement < 4092 && displacement >= 0) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 868 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 869 | opcode = kThumb2LdrhRRI12; |
| 870 | } |
| 871 | break; |
| 872 | case kSignedHalf: |
| 873 | if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 874 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 875 | opcode = kThumb2LdrshRRI12; |
| 876 | } |
| 877 | break; |
| 878 | case kUnsignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 879 | if (all_low_regs && displacement < 32 && displacement >= 0) { |
| 880 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 881 | opcode = kThumbLdrbRRI5; |
| 882 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 883 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 884 | opcode = kThumb2LdrbRRI12; |
| 885 | } |
| 886 | break; |
| 887 | case kSignedByte: |
| 888 | if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 889 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 890 | opcode = kThumb2LdrsbRRI12; |
| 891 | } |
| 892 | break; |
| 893 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 894 | LOG(FATAL) << "Bad size: " << size; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 895 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 896 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 897 | if (short_form) { |
| 898 | load = res = NewLIR3(cu, opcode, r_dest, rBase, encoded_disp); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 899 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 900 | int reg_offset = AllocTemp(cu); |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 901 | res = cg->LoadConstant(cu, reg_offset, encoded_disp); |
| 902 | load = cg->LoadBaseIndexed(cu, rBase, reg_offset, r_dest, 0, size); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 903 | FreeTemp(cu, reg_offset); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 904 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 905 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 906 | // TODO: in future may need to differentiate Dalvik accesses w/ spills |
buzbee | f0504cd | 2012-11-13 16:31:10 -0800 | [diff] [blame] | 907 | if (rBase == rARM_SP) { |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 908 | AnnotateDalvikRegAccess(cu, load, displacement >> 2, true /* is_load */, is64bit); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 909 | } |
| 910 | return load; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 911 | } |
| 912 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 913 | LIR* ArmCodegen::LoadBaseDisp(CompilationUnit* cu, int rBase, int displacement, int r_dest, |
| 914 | OpSize size, int s_reg) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 915 | { |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 916 | return LoadBaseDispBody(cu, rBase, displacement, r_dest, -1, size, s_reg); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 917 | } |
| 918 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 919 | LIR* ArmCodegen::LoadBaseDispWide(CompilationUnit* cu, int rBase, int displacement, int r_dest_lo, |
| 920 | int r_dest_hi, int s_reg) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 921 | { |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 922 | return LoadBaseDispBody(cu, rBase, displacement, r_dest_lo, r_dest_hi, kLong, s_reg); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 923 | } |
| 924 | |
| 925 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 926 | LIR* ArmCodegen::StoreBaseDispBody(CompilationUnit* cu, int rBase, int displacement, |
| 927 | int r_src, int r_src_hi, OpSize size) { |
| 928 | Codegen* cg = cu->cg.get(); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 929 | LIR* res, *store; |
| 930 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 931 | bool short_form = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 932 | bool thumb2Form = (displacement < 4092 && displacement >= 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 933 | bool all_low_regs = (ARM_LOWREG(rBase) && ARM_LOWREG(r_src)); |
| 934 | int encoded_disp = displacement; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 935 | bool is64bit = false; |
| 936 | switch (size) { |
| 937 | case kLong: |
| 938 | case kDouble: |
| 939 | is64bit = true; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 940 | if (!ARM_FPREG(r_src)) { |
| 941 | res = StoreBaseDispBody(cu, rBase, displacement, r_src, -1, kWord); |
| 942 | StoreBaseDispBody(cu, rBase, displacement + 4, r_src_hi, -1, kWord); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 943 | return res; |
| 944 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 945 | if (ARM_SINGLEREG(r_src)) { |
| 946 | DCHECK(ARM_FPREG(r_src_hi)); |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 947 | r_src = cg->S2d(r_src, r_src_hi); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 948 | } |
| 949 | opcode = kThumb2Vstrd; |
| 950 | if (displacement <= 1020) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 951 | short_form = true; |
| 952 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 953 | } |
| 954 | break; |
| 955 | case kSingle: |
| 956 | case kWord: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 957 | if (ARM_FPREG(r_src)) { |
| 958 | DCHECK(ARM_SINGLEREG(r_src)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 959 | opcode = kThumb2Vstrs; |
| 960 | if (displacement <= 1020) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 961 | short_form = true; |
| 962 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 963 | } |
| 964 | break; |
| 965 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 966 | if (all_low_regs && displacement < 128 && displacement >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 967 | DCHECK_EQ((displacement & 0x3), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 968 | short_form = true; |
| 969 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 970 | opcode = kThumbStrRRI5; |
| 971 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 972 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 973 | opcode = kThumb2StrRRI12; |
| 974 | } |
| 975 | break; |
| 976 | case kUnsignedHalf: |
| 977 | case kSignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 978 | if (all_low_regs && displacement < 64 && displacement >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 979 | DCHECK_EQ((displacement & 0x1), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 980 | short_form = true; |
| 981 | encoded_disp >>= 1; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 982 | opcode = kThumbStrhRRI5; |
| 983 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 984 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 985 | opcode = kThumb2StrhRRI12; |
| 986 | } |
| 987 | break; |
| 988 | case kUnsignedByte: |
| 989 | case kSignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 990 | if (all_low_regs && displacement < 32 && displacement >= 0) { |
| 991 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 992 | opcode = kThumbStrbRRI5; |
| 993 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 994 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 995 | opcode = kThumb2StrbRRI12; |
| 996 | } |
| 997 | break; |
| 998 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 999 | LOG(FATAL) << "Bad size: " << size; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1000 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1001 | if (short_form) { |
| 1002 | store = res = NewLIR3(cu, opcode, r_src, rBase, encoded_disp); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1003 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1004 | int r_scratch = AllocTemp(cu); |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1005 | res = cg->LoadConstant(cu, r_scratch, encoded_disp); |
| 1006 | store = cg->StoreBaseIndexed(cu, rBase, r_scratch, r_src, 0, size); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1007 | FreeTemp(cu, r_scratch); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1008 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1009 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1010 | // TODO: In future, may need to differentiate Dalvik & spill accesses |
buzbee | f0504cd | 2012-11-13 16:31:10 -0800 | [diff] [blame] | 1011 | if (rBase == rARM_SP) { |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1012 | AnnotateDalvikRegAccess(cu, store, displacement >> 2, false /* is_load */, is64bit); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1013 | } |
| 1014 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1015 | } |
| 1016 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1017 | LIR* ArmCodegen::StoreBaseDisp(CompilationUnit* cu, int rBase, int displacement, int r_src, |
| 1018 | OpSize size) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1019 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1020 | return StoreBaseDispBody(cu, rBase, displacement, r_src, -1, size); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1021 | } |
| 1022 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1023 | LIR* ArmCodegen::StoreBaseDispWide(CompilationUnit* cu, int rBase, int displacement, |
| 1024 | int r_src_lo, int r_src_hi) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1025 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1026 | return StoreBaseDispBody(cu, rBase, displacement, r_src_lo, r_src_hi, kLong); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1027 | } |
| 1028 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1029 | LIR* ArmCodegen::OpFpRegCopy(CompilationUnit* cu, int r_dest, int r_src) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1030 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1031 | int opcode; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1032 | DCHECK_EQ(ARM_DOUBLEREG(r_dest), ARM_DOUBLEREG(r_src)); |
| 1033 | if (ARM_DOUBLEREG(r_dest)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1034 | opcode = kThumb2Vmovd; |
| 1035 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1036 | if (ARM_SINGLEREG(r_dest)) { |
| 1037 | opcode = ARM_SINGLEREG(r_src) ? kThumb2Vmovs : kThumb2Fmsr; |
buzbee | a2ebdd7 | 2012-03-04 14:57:06 -0800 | [diff] [blame] | 1038 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1039 | DCHECK(ARM_SINGLEREG(r_src)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1040 | opcode = kThumb2Fmrs; |
buzbee | a2ebdd7 | 2012-03-04 14:57:06 -0800 | [diff] [blame] | 1041 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1042 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1043 | LIR* res = RawLIR(cu, cu->current_dalvik_offset, opcode, r_dest, r_src); |
| 1044 | if (!(cu->disable_opt & (1 << kSafeOptimizations)) && r_dest == r_src) { |
| 1045 | res->flags.is_nop = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1046 | } |
| 1047 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1048 | } |
| 1049 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1050 | LIR* ArmCodegen::OpThreadMem(CompilationUnit* cu, OpKind op, int thread_offset) |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1051 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1052 | LOG(FATAL) << "Unexpected use of OpThreadMem for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1053 | return NULL; |
| 1054 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1055 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1056 | LIR* ArmCodegen::OpMem(CompilationUnit* cu, OpKind op, int rBase, int disp) |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1057 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1058 | LOG(FATAL) << "Unexpected use of OpMem for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1059 | return NULL; |
| 1060 | } |
| 1061 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1062 | LIR* ArmCodegen::StoreBaseIndexedDisp(CompilationUnit *cu, int rBase, int r_index, int scale, |
| 1063 | int displacement, int r_src, int r_src_hi, OpSize size, |
| 1064 | int s_reg) |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1065 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1066 | LOG(FATAL) << "Unexpected use of StoreBaseIndexedDisp for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1067 | return NULL; |
| 1068 | } |
| 1069 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1070 | LIR* ArmCodegen::OpRegMem(CompilationUnit *cu, OpKind op, int r_dest, int rBase, int offset) |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1071 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1072 | LOG(FATAL) << "Unexpected use of OpRegMem for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1073 | return NULL; |
| 1074 | } |
| 1075 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1076 | LIR* ArmCodegen::LoadBaseIndexedDisp(CompilationUnit *cu, int rBase, int r_index, int scale, |
| 1077 | int displacement, int r_dest, int r_dest_hi, OpSize size, |
| 1078 | int s_reg) |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1079 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1080 | LOG(FATAL) << "Unexpected use of LoadBaseIndexedDisp for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1081 | return NULL; |
| 1082 | } |
Elliott Hughes | 11d1b0c | 2012-01-23 16:57:47 -0800 | [diff] [blame] | 1083 | |
| 1084 | } // namespace art |