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" |
Brian Carlstrom | 641ce03 | 2013-01-31 15:21:37 -0800 | [diff] [blame] | 19 | #include "compiler/codegen/codegen_util.h" |
| 20 | #include "compiler/codegen/ralloc_util.h" |
buzbee | 1bc37c6 | 2012-11-20 13:35:41 -0800 | [diff] [blame] | 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 | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 48 | /* |
| 49 | * Determine whether value can be encoded as a Thumb2 floating point |
| 50 | * immediate. If not, return -1. If so return encoded 8-bit value. |
| 51 | */ |
| 52 | static int EncodeImmDouble(int64_t value) |
| 53 | { |
| 54 | int res; |
| 55 | int bit_a = (value & 0x8000000000000000ll) >> 63; |
| 56 | int not_bit_b = (value & 0x4000000000000000ll) >> 62; |
| 57 | int bit_b = (value & 0x2000000000000000ll) >> 61; |
| 58 | int b_smear = (value & 0x3fc0000000000000ll) >> 54; |
| 59 | int slice = (value & 0x003f000000000000ll) >> 48; |
| 60 | uint64_t zeroes = (value & 0x0000ffffffffffffll); |
| 61 | if (zeroes != 0) |
| 62 | return -1; |
| 63 | if (bit_b) { |
| 64 | if ((not_bit_b != 0) || (b_smear != 0xff)) |
| 65 | return -1; |
| 66 | } else { |
| 67 | if ((not_bit_b != 1) || (b_smear != 0x0)) |
| 68 | return -1; |
| 69 | } |
| 70 | res = (bit_a << 7) | (bit_b << 6) | slice; |
| 71 | return res; |
| 72 | } |
| 73 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 74 | static LIR* LoadFPConstantValue(CompilationUnit* cu, int r_dest, int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 75 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 76 | DCHECK(ARM_SINGLEREG(r_dest)); |
buzbee | 7da142f | 2012-11-29 16:33:42 -0800 | [diff] [blame] | 77 | if (value == 0) { |
| 78 | // TODO: we need better info about the target CPU. a vector exclusive or |
| 79 | // would probably be better here if we could rely on its existance. |
| 80 | // Load an immediate +2.0 (which encodes to 0) |
| 81 | NewLIR2(cu, kThumb2Vmovs_IMM8, r_dest, 0); |
| 82 | // +0.0 = +2.0 - +2.0 |
| 83 | return NewLIR3(cu, kThumb2Vsubs, r_dest, r_dest, r_dest); |
| 84 | } else { |
| 85 | int encoded_imm = EncodeImmSingle(value); |
| 86 | if (encoded_imm >= 0) { |
| 87 | return NewLIR2(cu, kThumb2Vmovs_IMM8, r_dest, encoded_imm); |
| 88 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 89 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 90 | LIR* data_target = ScanLiteralPool(cu->literal_list, value, 0); |
| 91 | if (data_target == NULL) { |
| 92 | data_target = AddWordData(cu, &cu->literal_list, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 93 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 94 | LIR* load_pc_rel = RawLIR(cu, cu->current_dalvik_offset, kThumb2Vldrs, |
| 95 | r_dest, r15pc, 0, 0, 0, data_target); |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 96 | SetMemRefType(cu, load_pc_rel, true, kLiteral); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 97 | load_pc_rel->alias_info = reinterpret_cast<uintptr_t>(data_target); |
| 98 | AppendLIR(cu, load_pc_rel); |
| 99 | return load_pc_rel; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 100 | } |
| 101 | |
buzbee | aad9438 | 2012-11-21 07:40:50 -0800 | [diff] [blame] | 102 | static int LeadingZeros(uint32_t val) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 103 | { |
buzbee | eaf09bc | 2012-11-15 14:51:41 -0800 | [diff] [blame] | 104 | uint32_t alt; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 105 | int n; |
| 106 | int count; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 107 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 108 | count = 16; |
| 109 | n = 32; |
| 110 | do { |
| 111 | alt = val >> count; |
| 112 | if (alt != 0) { |
| 113 | n = n - count; |
| 114 | val = alt; |
| 115 | } |
| 116 | count >>= 1; |
| 117 | } while (count); |
| 118 | return n - val; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 119 | } |
| 120 | |
| 121 | /* |
| 122 | * Determine whether value can be encoded as a Thumb2 modified |
| 123 | * immediate. If not, return -1. If so, return i:imm3:a:bcdefgh form. |
| 124 | */ |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 125 | int ArmCodegen::ModifiedImmediate(uint32_t value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 126 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 127 | int z_leading; |
| 128 | int z_trailing; |
buzbee | eaf09bc | 2012-11-15 14:51:41 -0800 | [diff] [blame] | 129 | uint32_t b0 = value & 0xff; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 130 | |
| 131 | /* Note: case of value==0 must use 0:000:0:0000000 encoding */ |
| 132 | if (value <= 0xFF) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 133 | return b0; // 0:000:a:bcdefgh |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 134 | if (value == ((b0 << 16) | b0)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 135 | return (0x1 << 8) | b0; /* 0:001:a:bcdefgh */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 136 | if (value == ((b0 << 24) | (b0 << 16) | (b0 << 8) | b0)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 137 | return (0x3 << 8) | b0; /* 0:011:a:bcdefgh */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 138 | b0 = (value >> 8) & 0xff; |
| 139 | if (value == ((b0 << 24) | (b0 << 8))) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 140 | return (0x2 << 8) | b0; /* 0:010:a:bcdefgh */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 141 | /* Can we do it with rotation? */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 142 | z_leading = LeadingZeros(value); |
| 143 | z_trailing = 32 - LeadingZeros(~value & (value - 1)); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 144 | /* A run of eight or fewer active bits? */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 145 | if ((z_leading + z_trailing) < 24) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 146 | return -1; /* No - bail */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 147 | /* left-justify the constant, discarding msb (known to be 1) */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 148 | value <<= z_leading + 1; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 149 | /* Create bcdefgh */ |
| 150 | value >>= 25; |
| 151 | /* Put it all together */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 152 | return value | ((0x8 + z_leading) << 7); /* [01000..11111]:bcdefgh */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 153 | } |
| 154 | |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 155 | bool ArmCodegen::InexpensiveConstantInt(int32_t value) |
buzbee | e6285f9 | 2012-12-06 15:57:46 -0800 | [diff] [blame] | 156 | { |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 157 | return (ModifiedImmediate(value) >= 0) || (ModifiedImmediate(~value) >= 0); |
| 158 | } |
| 159 | |
| 160 | bool ArmCodegen::InexpensiveConstantFloat(int32_t value) |
| 161 | { |
| 162 | return EncodeImmSingle(value) >= 0; |
| 163 | } |
| 164 | |
| 165 | bool ArmCodegen::InexpensiveConstantLong(int64_t value) |
| 166 | { |
| 167 | return InexpensiveConstantInt(High32Bits(value)) && InexpensiveConstantInt(Low32Bits(value)); |
| 168 | } |
| 169 | |
| 170 | bool ArmCodegen::InexpensiveConstantDouble(int64_t value) |
| 171 | { |
| 172 | return EncodeImmDouble(value) >= 0; |
buzbee | e6285f9 | 2012-12-06 15:57:46 -0800 | [diff] [blame] | 173 | } |
| 174 | |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 175 | /* |
| 176 | * Load a immediate using a shortcut if possible; otherwise |
| 177 | * grab from the per-translation literal pool. |
| 178 | * |
| 179 | * No additional register clobbering operation performed. Use this version when |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 180 | * 1) r_dest is freshly returned from AllocTemp or |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 181 | * 2) The codegen is under fixed register usage |
| 182 | */ |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 183 | LIR* ArmCodegen::LoadConstantNoClobber(CompilationUnit* cu, int r_dest, int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 184 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 185 | LIR* res; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 186 | int mod_imm; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 187 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 188 | if (ARM_FPREG(r_dest)) { |
| 189 | return LoadFPConstantValue(cu, r_dest, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 190 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 191 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 192 | /* See if the value can be constructed cheaply */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 193 | if (ARM_LOWREG(r_dest) && (value >= 0) && (value <= 255)) { |
| 194 | return NewLIR2(cu, kThumbMovImm, r_dest, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 195 | } |
| 196 | /* Check Modified immediate special cases */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 197 | mod_imm = ModifiedImmediate(value); |
| 198 | if (mod_imm >= 0) { |
| 199 | res = NewLIR2(cu, kThumb2MovImmShift, r_dest, mod_imm); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 200 | return res; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 201 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 202 | mod_imm = ModifiedImmediate(~value); |
| 203 | if (mod_imm >= 0) { |
| 204 | res = NewLIR2(cu, kThumb2MvnImm12, r_dest, mod_imm); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 205 | return res; |
| 206 | } |
| 207 | /* 16-bit immediate? */ |
| 208 | if ((value & 0xffff) == value) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 209 | res = NewLIR2(cu, kThumb2MovImm16, r_dest, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 210 | return res; |
| 211 | } |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 212 | /* Do a low/high pair */ |
| 213 | res = NewLIR2(cu, kThumb2MovImm16, r_dest, Low16Bits(value)); |
| 214 | NewLIR2(cu, kThumb2MovImm16H, r_dest, High16Bits(value)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 215 | return res; |
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::OpUnconditionalBranch(CompilationUnit* cu, LIR* target) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 219 | { |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 220 | LIR* res = NewLIR1(cu, kThumbBUncond, 0 /* offset to be patched during assembly*/); |
| 221 | res->target = target; |
| 222 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 223 | } |
| 224 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 225 | LIR* ArmCodegen::OpCondBranch(CompilationUnit* cu, ConditionCode cc, LIR* target) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 226 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 227 | LIR* branch = NewLIR2(cu, kThumb2BCond, 0 /* offset to be patched */, |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 228 | ArmConditionEncoding(cc)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 229 | branch->target = target; |
| 230 | return branch; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 231 | } |
| 232 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 233 | LIR* ArmCodegen::OpReg(CompilationUnit* cu, OpKind op, int r_dest_src) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 234 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 235 | ArmOpcode opcode = kThumbBkpt; |
| 236 | switch (op) { |
| 237 | case kOpBlx: |
| 238 | opcode = kThumbBlxR; |
| 239 | break; |
| 240 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 241 | LOG(FATAL) << "Bad opcode " << op; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 242 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 243 | return NewLIR1(cu, opcode, r_dest_src); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 244 | } |
| 245 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 246 | LIR* ArmCodegen::OpRegRegShift(CompilationUnit* cu, OpKind op, int r_dest_src1, int r_src2, |
| 247 | int shift) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 248 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 249 | 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] | 250 | ArmOpcode opcode = kThumbBkpt; |
| 251 | switch (op) { |
| 252 | case kOpAdc: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 253 | opcode = (thumb_form) ? kThumbAdcRR : kThumb2AdcRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 254 | break; |
| 255 | case kOpAnd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 256 | opcode = (thumb_form) ? kThumbAndRR : kThumb2AndRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 257 | break; |
| 258 | case kOpBic: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 259 | opcode = (thumb_form) ? kThumbBicRR : kThumb2BicRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 260 | break; |
| 261 | case kOpCmn: |
| 262 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 263 | opcode = (thumb_form) ? kThumbCmnRR : kThumb2CmnRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 264 | break; |
| 265 | case kOpCmp: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 266 | if (thumb_form) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 267 | opcode = kThumbCmpRR; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 268 | 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] | 269 | opcode = kThumbCmpHH; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 270 | else if ((shift == 0) && ARM_LOWREG(r_dest_src1)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 271 | opcode = kThumbCmpLH; |
| 272 | else if (shift == 0) |
| 273 | opcode = kThumbCmpHL; |
| 274 | else |
| 275 | opcode = kThumb2CmpRR; |
| 276 | break; |
| 277 | case kOpXor: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 278 | opcode = (thumb_form) ? kThumbEorRR : kThumb2EorRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 279 | break; |
| 280 | case kOpMov: |
| 281 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 282 | if (ARM_LOWREG(r_dest_src1) && ARM_LOWREG(r_src2)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 283 | opcode = kThumbMovRR; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 284 | else if (!ARM_LOWREG(r_dest_src1) && !ARM_LOWREG(r_src2)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 285 | opcode = kThumbMovRR_H2H; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 286 | else if (ARM_LOWREG(r_dest_src1)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 287 | opcode = kThumbMovRR_H2L; |
| 288 | else |
| 289 | opcode = kThumbMovRR_L2H; |
| 290 | break; |
| 291 | case kOpMul: |
| 292 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 293 | opcode = (thumb_form) ? kThumbMul : kThumb2MulRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 294 | break; |
| 295 | case kOpMvn: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 296 | opcode = (thumb_form) ? kThumbMvn : kThumb2MnvRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 297 | break; |
| 298 | case kOpNeg: |
| 299 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 300 | opcode = (thumb_form) ? kThumbNeg : kThumb2NegRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 301 | break; |
| 302 | case kOpOr: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 303 | opcode = (thumb_form) ? kThumbOrr : kThumb2OrrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 304 | break; |
| 305 | case kOpSbc: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 306 | opcode = (thumb_form) ? kThumbSbc : kThumb2SbcRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 307 | break; |
| 308 | case kOpTst: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 309 | opcode = (thumb_form) ? kThumbTst : kThumb2TstRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 310 | break; |
| 311 | case kOpLsl: |
| 312 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 313 | opcode = (thumb_form) ? kThumbLslRR : kThumb2LslRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 314 | break; |
| 315 | case kOpLsr: |
| 316 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 317 | opcode = (thumb_form) ? kThumbLsrRR : kThumb2LsrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 318 | break; |
| 319 | case kOpAsr: |
| 320 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 321 | opcode = (thumb_form) ? kThumbAsrRR : kThumb2AsrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 322 | break; |
| 323 | case kOpRor: |
| 324 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 325 | opcode = (thumb_form) ? kThumbRorRR : kThumb2RorRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 326 | break; |
| 327 | case kOpAdd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 328 | opcode = (thumb_form) ? kThumbAddRRR : kThumb2AddRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 329 | break; |
| 330 | case kOpSub: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 331 | opcode = (thumb_form) ? kThumbSubRRR : kThumb2SubRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 332 | break; |
| 333 | case kOp2Byte: |
| 334 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 335 | return NewLIR4(cu, kThumb2Sbfx, r_dest_src1, r_src2, 0, 8); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 336 | case kOp2Short: |
| 337 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 338 | return NewLIR4(cu, kThumb2Sbfx, r_dest_src1, r_src2, 0, 16); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 339 | case kOp2Char: |
| 340 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 341 | return NewLIR4(cu, kThumb2Ubfx, r_dest_src1, r_src2, 0, 16); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 342 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 343 | LOG(FATAL) << "Bad opcode: " << op; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 344 | break; |
| 345 | } |
| 346 | DCHECK_GE(static_cast<int>(opcode), 0); |
| 347 | if (EncodingMap[opcode].flags & IS_BINARY_OP) |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 348 | return NewLIR2(cu, opcode, r_dest_src1, r_src2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 349 | else if (EncodingMap[opcode].flags & IS_TERTIARY_OP) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 350 | if (EncodingMap[opcode].field_loc[2].kind == kFmtShift) |
| 351 | return NewLIR3(cu, opcode, r_dest_src1, r_src2, shift); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 352 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 353 | return NewLIR3(cu, opcode, r_dest_src1, r_dest_src1, r_src2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 354 | } else if (EncodingMap[opcode].flags & IS_QUAD_OP) |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 355 | 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] | 356 | else { |
| 357 | LOG(FATAL) << "Unexpected encoding operand count"; |
| 358 | return NULL; |
| 359 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 360 | } |
| 361 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 362 | 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] | 363 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 364 | return OpRegRegShift(cu, op, r_dest_src1, r_src2, 0); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 365 | } |
| 366 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 367 | LIR* ArmCodegen::OpRegRegRegShift(CompilationUnit* cu, OpKind op, int r_dest, int r_src1, |
| 368 | int r_src2, int shift) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 369 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 370 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 371 | bool thumb_form = (shift == 0) && ARM_LOWREG(r_dest) && ARM_LOWREG(r_src1) && |
| 372 | ARM_LOWREG(r_src2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 373 | switch (op) { |
| 374 | case kOpAdd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 375 | opcode = (thumb_form) ? kThumbAddRRR : kThumb2AddRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 376 | break; |
| 377 | case kOpSub: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 378 | opcode = (thumb_form) ? kThumbSubRRR : kThumb2SubRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 379 | break; |
| 380 | case kOpRsub: |
| 381 | opcode = kThumb2RsubRRR; |
| 382 | break; |
| 383 | case kOpAdc: |
| 384 | opcode = kThumb2AdcRRR; |
| 385 | break; |
| 386 | case kOpAnd: |
| 387 | opcode = kThumb2AndRRR; |
| 388 | break; |
| 389 | case kOpBic: |
| 390 | opcode = kThumb2BicRRR; |
| 391 | break; |
| 392 | case kOpXor: |
| 393 | opcode = kThumb2EorRRR; |
| 394 | break; |
| 395 | case kOpMul: |
| 396 | DCHECK_EQ(shift, 0); |
| 397 | opcode = kThumb2MulRRR; |
| 398 | break; |
| 399 | case kOpOr: |
| 400 | opcode = kThumb2OrrRRR; |
| 401 | break; |
| 402 | case kOpSbc: |
| 403 | opcode = kThumb2SbcRRR; |
| 404 | break; |
| 405 | case kOpLsl: |
| 406 | DCHECK_EQ(shift, 0); |
| 407 | opcode = kThumb2LslRRR; |
| 408 | break; |
| 409 | case kOpLsr: |
| 410 | DCHECK_EQ(shift, 0); |
| 411 | opcode = kThumb2LsrRRR; |
| 412 | break; |
| 413 | case kOpAsr: |
| 414 | DCHECK_EQ(shift, 0); |
| 415 | opcode = kThumb2AsrRRR; |
| 416 | break; |
| 417 | case kOpRor: |
| 418 | DCHECK_EQ(shift, 0); |
| 419 | opcode = kThumb2RorRRR; |
| 420 | break; |
| 421 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 422 | LOG(FATAL) << "Bad opcode: " << op; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 423 | break; |
| 424 | } |
| 425 | DCHECK_GE(static_cast<int>(opcode), 0); |
| 426 | if (EncodingMap[opcode].flags & IS_QUAD_OP) |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 427 | return NewLIR4(cu, opcode, r_dest, r_src1, r_src2, shift); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 428 | else { |
| 429 | DCHECK(EncodingMap[opcode].flags & IS_TERTIARY_OP); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 430 | return NewLIR3(cu, opcode, r_dest, r_src1, r_src2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 431 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 432 | } |
| 433 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 434 | 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] | 435 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 436 | return OpRegRegRegShift(cu, op, r_dest, r_src1, r_src2, 0); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 437 | } |
| 438 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 439 | 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] | 440 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 441 | LIR* res; |
| 442 | bool neg = (value < 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 443 | int abs_value = (neg) ? -value : value; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 444 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 445 | ArmOpcode alt_opcode = kThumbBkpt; |
| 446 | bool all_low_regs = (ARM_LOWREG(r_dest) && ARM_LOWREG(r_src1)); |
| 447 | int mod_imm = ModifiedImmediate(value); |
| 448 | int mod_imm_neg = ModifiedImmediate(-value); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 449 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 450 | switch (op) { |
| 451 | case kOpLsl: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 452 | if (all_low_regs) |
| 453 | return NewLIR3(cu, kThumbLslRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 454 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 455 | return NewLIR3(cu, kThumb2LslRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 456 | case kOpLsr: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 457 | if (all_low_regs) |
| 458 | return NewLIR3(cu, kThumbLsrRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 459 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 460 | return NewLIR3(cu, kThumb2LsrRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 461 | case kOpAsr: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 462 | if (all_low_regs) |
| 463 | return NewLIR3(cu, kThumbAsrRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 464 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 465 | return NewLIR3(cu, kThumb2AsrRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 466 | case kOpRor: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 467 | return NewLIR3(cu, kThumb2RorRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 468 | case kOpAdd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 469 | if (ARM_LOWREG(r_dest) && (r_src1 == r13sp) && |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 470 | (value <= 1020) && ((value & 0x3)==0)) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 471 | return NewLIR3(cu, kThumbAddSpRel, r_dest, r_src1, value >> 2); |
| 472 | } else if (ARM_LOWREG(r_dest) && (r_src1 == r15pc) && |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 473 | (value <= 1020) && ((value & 0x3)==0)) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 474 | return NewLIR3(cu, kThumbAddPcRel, r_dest, r_src1, value >> 2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 475 | } |
| 476 | // Note: intentional fallthrough |
| 477 | case kOpSub: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 478 | if (all_low_regs && ((abs_value & 0x7) == abs_value)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 479 | if (op == kOpAdd) |
| 480 | opcode = (neg) ? kThumbSubRRI3 : kThumbAddRRI3; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 481 | else |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 482 | opcode = (neg) ? kThumbAddRRI3 : kThumbSubRRI3; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 483 | return NewLIR3(cu, opcode, r_dest, r_src1, abs_value); |
| 484 | } else if ((abs_value & 0xff) == abs_value) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 485 | if (op == kOpAdd) |
| 486 | opcode = (neg) ? kThumb2SubRRI12 : kThumb2AddRRI12; |
| 487 | else |
| 488 | opcode = (neg) ? kThumb2AddRRI12 : kThumb2SubRRI12; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 489 | return NewLIR3(cu, opcode, r_dest, r_src1, abs_value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 490 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 491 | if (mod_imm_neg >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 492 | op = (op == kOpAdd) ? kOpSub : kOpAdd; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 493 | mod_imm = mod_imm_neg; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 494 | } |
| 495 | if (op == kOpSub) { |
| 496 | opcode = kThumb2SubRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 497 | alt_opcode = kThumb2SubRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 498 | } else { |
| 499 | opcode = kThumb2AddRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 500 | alt_opcode = kThumb2AddRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 501 | } |
| 502 | break; |
buzbee | c7d1f91 | 2013-02-07 15:22:39 -0800 | [diff] [blame^] | 503 | case kOpRsub: |
| 504 | opcode = kThumb2RsubRRI8; |
| 505 | alt_opcode = kThumb2RsubRRR; |
| 506 | break; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 507 | case kOpAdc: |
| 508 | opcode = kThumb2AdcRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 509 | alt_opcode = kThumb2AdcRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 510 | break; |
| 511 | case kOpSbc: |
| 512 | opcode = kThumb2SbcRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 513 | alt_opcode = kThumb2SbcRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 514 | break; |
| 515 | case kOpOr: |
| 516 | opcode = kThumb2OrrRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 517 | alt_opcode = kThumb2OrrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 518 | break; |
| 519 | case kOpAnd: |
| 520 | opcode = kThumb2AndRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 521 | alt_opcode = kThumb2AndRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 522 | break; |
| 523 | case kOpXor: |
| 524 | opcode = kThumb2EorRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 525 | alt_opcode = kThumb2EorRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 526 | break; |
| 527 | case kOpMul: |
| 528 | //TUNING: power of 2, shift & add |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 529 | mod_imm = -1; |
| 530 | alt_opcode = kThumb2MulRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 531 | break; |
| 532 | case kOpCmp: { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 533 | int mod_imm = ModifiedImmediate(value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 534 | LIR* res; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 535 | if (mod_imm >= 0) { |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 536 | res = NewLIR2(cu, kThumb2CmpRI12, r_src1, mod_imm); |
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 | int r_tmp = AllocTemp(cu); |
| 539 | res = LoadConstant(cu, r_tmp, value); |
| 540 | OpRegReg(cu, kOpCmp, r_src1, r_tmp); |
| 541 | FreeTemp(cu, r_tmp); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 542 | } |
| 543 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 544 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 545 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 546 | LOG(FATAL) << "Bad opcode: " << op; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 547 | } |
| 548 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 549 | if (mod_imm >= 0) { |
| 550 | return NewLIR3(cu, opcode, r_dest, r_src1, mod_imm); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 551 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 552 | int r_scratch = AllocTemp(cu); |
| 553 | LoadConstant(cu, r_scratch, value); |
| 554 | if (EncodingMap[alt_opcode].flags & IS_QUAD_OP) |
| 555 | res = NewLIR4(cu, alt_opcode, r_dest, r_src1, r_scratch, 0); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 556 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 557 | res = NewLIR3(cu, alt_opcode, r_dest, r_src1, r_scratch); |
| 558 | FreeTemp(cu, r_scratch); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 559 | return res; |
| 560 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 561 | } |
| 562 | |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 563 | /* Handle Thumb-only variants here - otherwise punt to OpRegRegImm */ |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 564 | LIR* ArmCodegen::OpRegImm(CompilationUnit* cu, OpKind op, int r_dest_src1, int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 565 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 566 | bool neg = (value < 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 567 | int abs_value = (neg) ? -value : value; |
| 568 | 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] | 569 | ArmOpcode opcode = kThumbBkpt; |
| 570 | switch (op) { |
| 571 | case kOpAdd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 572 | if ( !neg && (r_dest_src1 == r13sp) && (value <= 508)) { /* sp */ |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 573 | DCHECK_EQ((value & 0x3), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 574 | return NewLIR1(cu, kThumbAddSpI7, value >> 2); |
| 575 | } else if (short_form) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 576 | opcode = (neg) ? kThumbSubRI8 : kThumbAddRI8; |
| 577 | } |
| 578 | break; |
| 579 | case kOpSub: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 580 | if (!neg && (r_dest_src1 == r13sp) && (value <= 508)) { /* sp */ |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 581 | DCHECK_EQ((value & 0x3), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 582 | return NewLIR1(cu, kThumbSubSpI7, value >> 2); |
| 583 | } else if (short_form) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 584 | opcode = (neg) ? kThumbAddRI8 : kThumbSubRI8; |
| 585 | } |
| 586 | break; |
| 587 | case kOpCmp: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 588 | if (ARM_LOWREG(r_dest_src1) && short_form) |
| 589 | opcode = (short_form) ? kThumbCmpRI8 : kThumbCmpRR; |
| 590 | else if (ARM_LOWREG(r_dest_src1)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 591 | opcode = kThumbCmpRR; |
| 592 | else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 593 | short_form = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 594 | opcode = kThumbCmpHL; |
| 595 | } |
| 596 | break; |
| 597 | default: |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 598 | /* Punt to OpRegRegImm - if bad case catch it there */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 599 | short_form = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 600 | break; |
| 601 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 602 | if (short_form) |
| 603 | return NewLIR2(cu, opcode, r_dest_src1, abs_value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 604 | else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 605 | return OpRegRegImm(cu, op, r_dest_src1, r_dest_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 606 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 607 | } |
| 608 | |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 609 | LIR* ArmCodegen::LoadConstantWide(CompilationUnit* cu, int r_dest_lo, int r_dest_hi, int64_t value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 610 | { |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 611 | LIR* res = NULL; |
| 612 | int32_t val_lo = Low32Bits(value); |
| 613 | int32_t val_hi = High32Bits(value); |
buzbee | 7da142f | 2012-11-29 16:33:42 -0800 | [diff] [blame] | 614 | int target_reg = S2d(r_dest_lo, r_dest_hi); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 615 | if (ARM_FPREG(r_dest_lo)) { |
buzbee | 7da142f | 2012-11-29 16:33:42 -0800 | [diff] [blame] | 616 | if ((val_lo == 0) && (val_hi == 0)) { |
| 617 | // TODO: we need better info about the target CPU. a vector exclusive or |
| 618 | // would probably be better here if we could rely on its existance. |
| 619 | // Load an immediate +2.0 (which encodes to 0) |
| 620 | NewLIR2(cu, kThumb2Vmovd_IMM8, target_reg, 0); |
| 621 | // +0.0 = +2.0 - +2.0 |
| 622 | res = NewLIR3(cu, kThumb2Vsubd, target_reg, target_reg, target_reg); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 623 | } else { |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 624 | int encoded_imm = EncodeImmDouble(value); |
buzbee | 7da142f | 2012-11-29 16:33:42 -0800 | [diff] [blame] | 625 | if (encoded_imm >= 0) { |
| 626 | res = NewLIR2(cu, kThumb2Vmovd_IMM8, target_reg, encoded_imm); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 627 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 628 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 629 | } else { |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 630 | if ((InexpensiveConstantInt(val_lo) && (InexpensiveConstantInt(val_hi)))) { |
| 631 | res = LoadConstantNoClobber(cu, r_dest_lo, val_lo); |
| 632 | LoadConstantNoClobber(cu, r_dest_hi, val_hi); |
| 633 | } |
| 634 | } |
| 635 | if (res == NULL) { |
| 636 | // No short form - load from the literal pool. |
| 637 | LIR* data_target = ScanLiteralPoolWide(cu->literal_list, val_lo, val_hi); |
| 638 | if (data_target == NULL) { |
| 639 | data_target = AddWideData(cu, &cu->literal_list, val_lo, val_hi); |
| 640 | } |
| 641 | if (ARM_FPREG(r_dest_lo)) { |
| 642 | res = RawLIR(cu, cu->current_dalvik_offset, kThumb2Vldrd, |
| 643 | target_reg, r15pc, 0, 0, 0, data_target); |
| 644 | } else { |
| 645 | res = RawLIR(cu, cu->current_dalvik_offset, kThumb2LdrdPcRel8, |
| 646 | r_dest_lo, r_dest_hi, r15pc, 0, 0, data_target); |
| 647 | } |
| 648 | SetMemRefType(cu, res, true, kLiteral); |
| 649 | res->alias_info = reinterpret_cast<uintptr_t>(data_target); |
| 650 | AppendLIR(cu, res); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 651 | } |
| 652 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 653 | } |
| 654 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 655 | int ArmCodegen::EncodeShift(int code, int amount) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 656 | return ((amount & 0x1f) << 2) | code; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 657 | } |
| 658 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 659 | LIR* ArmCodegen::LoadBaseIndexed(CompilationUnit* cu, int rBase, int r_index, int r_dest, |
| 660 | int scale, OpSize size) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 661 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 662 | 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] | 663 | LIR* load; |
| 664 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 665 | bool thumb_form = (all_low_regs && (scale == 0)); |
| 666 | int reg_ptr; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 667 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 668 | if (ARM_FPREG(r_dest)) { |
| 669 | if (ARM_SINGLEREG(r_dest)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 670 | DCHECK((size == kWord) || (size == kSingle)); |
| 671 | opcode = kThumb2Vldrs; |
| 672 | size = kSingle; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 673 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 674 | DCHECK(ARM_DOUBLEREG(r_dest)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 675 | DCHECK((size == kLong) || (size == kDouble)); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 676 | DCHECK_EQ((r_dest & 0x1), 0); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 677 | opcode = kThumb2Vldrd; |
| 678 | size = kDouble; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 679 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 680 | } else { |
| 681 | if (size == kSingle) |
| 682 | size = kWord; |
| 683 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 684 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 685 | switch (size) { |
| 686 | case kDouble: // fall-through |
| 687 | case kSingle: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 688 | reg_ptr = AllocTemp(cu); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 689 | if (scale) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 690 | NewLIR4(cu, kThumb2AddRRR, reg_ptr, rBase, r_index, |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 691 | EncodeShift(kArmLsl, scale)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 692 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 693 | OpRegRegReg(cu, kOpAdd, reg_ptr, rBase, r_index); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 694 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 695 | load = NewLIR3(cu, opcode, r_dest, reg_ptr, 0); |
| 696 | FreeTemp(cu, reg_ptr); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 697 | return load; |
| 698 | case kWord: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 699 | opcode = (thumb_form) ? kThumbLdrRRR : kThumb2LdrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 700 | break; |
| 701 | case kUnsignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 702 | opcode = (thumb_form) ? kThumbLdrhRRR : kThumb2LdrhRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 703 | break; |
| 704 | case kSignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 705 | opcode = (thumb_form) ? kThumbLdrshRRR : kThumb2LdrshRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 706 | break; |
| 707 | case kUnsignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 708 | opcode = (thumb_form) ? kThumbLdrbRRR : kThumb2LdrbRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 709 | break; |
| 710 | case kSignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 711 | opcode = (thumb_form) ? kThumbLdrsbRRR : kThumb2LdrsbRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 712 | break; |
| 713 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 714 | LOG(FATAL) << "Bad size: " << size; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 715 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 716 | if (thumb_form) |
| 717 | load = NewLIR3(cu, opcode, r_dest, rBase, r_index); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 718 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 719 | load = NewLIR4(cu, opcode, r_dest, rBase, r_index, scale); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 720 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 721 | return load; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 722 | } |
| 723 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 724 | LIR* ArmCodegen::StoreBaseIndexed(CompilationUnit* cu, int rBase, int r_index, int r_src, |
| 725 | int scale, OpSize size) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 726 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 727 | bool all_low_regs = ARM_LOWREG(rBase) && ARM_LOWREG(r_index) && ARM_LOWREG(r_src); |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 728 | LIR* store = NULL; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 729 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 730 | bool thumb_form = (all_low_regs && (scale == 0)); |
| 731 | int reg_ptr; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 732 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 733 | if (ARM_FPREG(r_src)) { |
| 734 | if (ARM_SINGLEREG(r_src)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 735 | DCHECK((size == kWord) || (size == kSingle)); |
| 736 | opcode = kThumb2Vstrs; |
| 737 | size = kSingle; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 738 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 739 | DCHECK(ARM_DOUBLEREG(r_src)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 740 | DCHECK((size == kLong) || (size == kDouble)); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 741 | DCHECK_EQ((r_src & 0x1), 0); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 742 | opcode = kThumb2Vstrd; |
| 743 | size = kDouble; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 744 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 745 | } else { |
| 746 | if (size == kSingle) |
| 747 | size = kWord; |
| 748 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 749 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 750 | switch (size) { |
| 751 | case kDouble: // fall-through |
| 752 | case kSingle: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 753 | reg_ptr = AllocTemp(cu); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 754 | if (scale) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 755 | NewLIR4(cu, kThumb2AddRRR, reg_ptr, rBase, r_index, |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 756 | EncodeShift(kArmLsl, scale)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 757 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 758 | OpRegRegReg(cu, kOpAdd, reg_ptr, rBase, r_index); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 759 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 760 | store = NewLIR3(cu, opcode, r_src, reg_ptr, 0); |
| 761 | FreeTemp(cu, reg_ptr); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 762 | return store; |
| 763 | case kWord: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 764 | opcode = (thumb_form) ? kThumbStrRRR : kThumb2StrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 765 | break; |
| 766 | case kUnsignedHalf: |
| 767 | case kSignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 768 | opcode = (thumb_form) ? kThumbStrhRRR : kThumb2StrhRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 769 | break; |
| 770 | case kUnsignedByte: |
| 771 | case kSignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 772 | opcode = (thumb_form) ? kThumbStrbRRR : kThumb2StrbRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 773 | break; |
| 774 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 775 | LOG(FATAL) << "Bad size: " << size; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 776 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 777 | if (thumb_form) |
| 778 | store = NewLIR3(cu, opcode, r_src, rBase, r_index); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 779 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 780 | store = NewLIR4(cu, opcode, r_src, rBase, r_index, scale); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 781 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 782 | return store; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 783 | } |
| 784 | |
| 785 | /* |
| 786 | * Load value from base + displacement. Optionally perform null check |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 787 | * on base (which must have an associated s_reg and MIR). If not |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 788 | * performing null check, incoming MIR can be null. |
| 789 | */ |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 790 | LIR* ArmCodegen::LoadBaseDispBody(CompilationUnit* cu, int rBase, int displacement, int r_dest, |
| 791 | int r_dest_hi, OpSize size, int s_reg) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 792 | { |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 793 | Codegen* cg = cu->cg.get(); |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 794 | LIR* load = NULL; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 795 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 796 | bool short_form = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 797 | bool thumb2Form = (displacement < 4092 && displacement >= 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 798 | bool all_low_regs = (ARM_LOWREG(rBase) && ARM_LOWREG(r_dest)); |
| 799 | int encoded_disp = displacement; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 800 | bool is64bit = false; |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 801 | bool already_generated = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 802 | switch (size) { |
| 803 | case kDouble: |
| 804 | case kLong: |
| 805 | is64bit = true; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 806 | if (ARM_FPREG(r_dest)) { |
| 807 | if (ARM_SINGLEREG(r_dest)) { |
| 808 | DCHECK(ARM_FPREG(r_dest_hi)); |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 809 | r_dest = cg->S2d(r_dest, r_dest_hi); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 810 | } |
| 811 | opcode = kThumb2Vldrd; |
| 812 | if (displacement <= 1020) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 813 | short_form = true; |
| 814 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 815 | } |
| 816 | break; |
| 817 | } else { |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 818 | if (displacement <= 1020) { |
| 819 | load = NewLIR4(cu, kThumb2LdrdI8, r_dest, r_dest_hi, rBase, displacement >> 2); |
| 820 | } else { |
| 821 | load = LoadBaseDispBody(cu, rBase, displacement, r_dest, |
| 822 | -1, kWord, s_reg); |
| 823 | LoadBaseDispBody(cu, rBase, displacement + 4, r_dest_hi, |
| 824 | -1, kWord, INVALID_SREG); |
| 825 | } |
| 826 | already_generated = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 827 | } |
| 828 | case kSingle: |
| 829 | case kWord: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 830 | if (ARM_FPREG(r_dest)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 831 | opcode = kThumb2Vldrs; |
| 832 | if (displacement <= 1020) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 833 | short_form = true; |
| 834 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 835 | } |
| 836 | break; |
| 837 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 838 | if (ARM_LOWREG(r_dest) && (rBase == r15pc) && |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 839 | (displacement <= 1020) && (displacement >= 0)) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 840 | short_form = true; |
| 841 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 842 | opcode = kThumbLdrPcRel; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 843 | } else if (ARM_LOWREG(r_dest) && (rBase == r13sp) && |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 844 | (displacement <= 1020) && (displacement >= 0)) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 845 | short_form = true; |
| 846 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 847 | opcode = kThumbLdrSpRel; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 848 | } else if (all_low_regs && displacement < 128 && displacement >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 849 | DCHECK_EQ((displacement & 0x3), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 850 | short_form = true; |
| 851 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 852 | opcode = kThumbLdrRRI5; |
| 853 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 854 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 855 | opcode = kThumb2LdrRRI12; |
| 856 | } |
| 857 | break; |
| 858 | case kUnsignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 859 | if (all_low_regs && displacement < 64 && displacement >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 860 | DCHECK_EQ((displacement & 0x1), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 861 | short_form = true; |
| 862 | encoded_disp >>= 1; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 863 | opcode = kThumbLdrhRRI5; |
| 864 | } else if (displacement < 4092 && displacement >= 0) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 865 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 866 | opcode = kThumb2LdrhRRI12; |
| 867 | } |
| 868 | break; |
| 869 | case kSignedHalf: |
| 870 | if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 871 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 872 | opcode = kThumb2LdrshRRI12; |
| 873 | } |
| 874 | break; |
| 875 | case kUnsignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 876 | if (all_low_regs && displacement < 32 && displacement >= 0) { |
| 877 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 878 | opcode = kThumbLdrbRRI5; |
| 879 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 880 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 881 | opcode = kThumb2LdrbRRI12; |
| 882 | } |
| 883 | break; |
| 884 | case kSignedByte: |
| 885 | if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 886 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 887 | opcode = kThumb2LdrsbRRI12; |
| 888 | } |
| 889 | break; |
| 890 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 891 | LOG(FATAL) << "Bad size: " << size; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 892 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 893 | |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 894 | if (!already_generated) { |
| 895 | if (short_form) { |
| 896 | load = NewLIR3(cu, opcode, r_dest, rBase, encoded_disp); |
| 897 | } else { |
| 898 | int reg_offset = AllocTemp(cu); |
| 899 | cg->LoadConstant(cu, reg_offset, encoded_disp); |
| 900 | load = cg->LoadBaseIndexed(cu, rBase, reg_offset, r_dest, 0, size); |
| 901 | FreeTemp(cu, reg_offset); |
| 902 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 903 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 904 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 905 | // TODO: in future may need to differentiate Dalvik accesses w/ spills |
buzbee | f0504cd | 2012-11-13 16:31:10 -0800 | [diff] [blame] | 906 | if (rBase == rARM_SP) { |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 907 | AnnotateDalvikRegAccess(cu, load, displacement >> 2, true /* is_load */, is64bit); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 908 | } |
| 909 | return load; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 910 | } |
| 911 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 912 | LIR* ArmCodegen::LoadBaseDisp(CompilationUnit* cu, int rBase, int displacement, int r_dest, |
| 913 | OpSize size, int s_reg) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 914 | { |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 915 | return LoadBaseDispBody(cu, rBase, displacement, r_dest, -1, size, s_reg); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 916 | } |
| 917 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 918 | LIR* ArmCodegen::LoadBaseDispWide(CompilationUnit* cu, int rBase, int displacement, int r_dest_lo, |
| 919 | int r_dest_hi, int s_reg) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 920 | { |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 921 | 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] | 922 | } |
| 923 | |
| 924 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 925 | LIR* ArmCodegen::StoreBaseDispBody(CompilationUnit* cu, int rBase, int displacement, |
| 926 | int r_src, int r_src_hi, OpSize size) { |
| 927 | Codegen* cg = cu->cg.get(); |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 928 | LIR* store = NULL; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 929 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 930 | bool short_form = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 931 | bool thumb2Form = (displacement < 4092 && displacement >= 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 932 | bool all_low_regs = (ARM_LOWREG(rBase) && ARM_LOWREG(r_src)); |
| 933 | int encoded_disp = displacement; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 934 | bool is64bit = false; |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 935 | bool already_generated = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 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)) { |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 941 | if (displacement <= 1020) { |
| 942 | store = NewLIR4(cu, kThumb2StrdI8, r_src, r_src_hi, rBase, displacement >> 2); |
| 943 | } else { |
| 944 | store = StoreBaseDispBody(cu, rBase, displacement, r_src, -1, kWord); |
| 945 | StoreBaseDispBody(cu, rBase, displacement + 4, r_src_hi, -1, kWord); |
| 946 | } |
| 947 | already_generated = true; |
| 948 | } else { |
| 949 | if (ARM_SINGLEREG(r_src)) { |
| 950 | DCHECK(ARM_FPREG(r_src_hi)); |
| 951 | r_src = cg->S2d(r_src, r_src_hi); |
| 952 | } |
| 953 | opcode = kThumb2Vstrd; |
| 954 | if (displacement <= 1020) { |
| 955 | short_form = true; |
| 956 | encoded_disp >>= 2; |
| 957 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 958 | } |
| 959 | break; |
| 960 | case kSingle: |
| 961 | case kWord: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 962 | if (ARM_FPREG(r_src)) { |
| 963 | DCHECK(ARM_SINGLEREG(r_src)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 964 | opcode = kThumb2Vstrs; |
| 965 | if (displacement <= 1020) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 966 | short_form = true; |
| 967 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 968 | } |
| 969 | break; |
| 970 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 971 | if (all_low_regs && displacement < 128 && displacement >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 972 | DCHECK_EQ((displacement & 0x3), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 973 | short_form = true; |
| 974 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 975 | opcode = kThumbStrRRI5; |
| 976 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 977 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 978 | opcode = kThumb2StrRRI12; |
| 979 | } |
| 980 | break; |
| 981 | case kUnsignedHalf: |
| 982 | case kSignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 983 | if (all_low_regs && displacement < 64 && displacement >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 984 | DCHECK_EQ((displacement & 0x1), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 985 | short_form = true; |
| 986 | encoded_disp >>= 1; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 987 | opcode = kThumbStrhRRI5; |
| 988 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 989 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 990 | opcode = kThumb2StrhRRI12; |
| 991 | } |
| 992 | break; |
| 993 | case kUnsignedByte: |
| 994 | case kSignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 995 | if (all_low_regs && displacement < 32 && displacement >= 0) { |
| 996 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 997 | opcode = kThumbStrbRRI5; |
| 998 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 999 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1000 | opcode = kThumb2StrbRRI12; |
| 1001 | } |
| 1002 | break; |
| 1003 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 1004 | LOG(FATAL) << "Bad size: " << size; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1005 | } |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 1006 | if (!already_generated) { |
| 1007 | if (short_form) { |
| 1008 | store = NewLIR3(cu, opcode, r_src, rBase, encoded_disp); |
| 1009 | } else { |
| 1010 | int r_scratch = AllocTemp(cu); |
| 1011 | cg->LoadConstant(cu, r_scratch, encoded_disp); |
| 1012 | store = cg->StoreBaseIndexed(cu, rBase, r_scratch, r_src, 0, size); |
| 1013 | FreeTemp(cu, r_scratch); |
| 1014 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1015 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1016 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1017 | // TODO: In future, may need to differentiate Dalvik & spill accesses |
buzbee | f0504cd | 2012-11-13 16:31:10 -0800 | [diff] [blame] | 1018 | if (rBase == rARM_SP) { |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1019 | AnnotateDalvikRegAccess(cu, store, displacement >> 2, false /* is_load */, is64bit); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1020 | } |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 1021 | return store; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1022 | } |
| 1023 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1024 | LIR* ArmCodegen::StoreBaseDisp(CompilationUnit* cu, int rBase, int displacement, int r_src, |
| 1025 | OpSize size) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1026 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1027 | return StoreBaseDispBody(cu, rBase, displacement, r_src, -1, size); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1028 | } |
| 1029 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1030 | LIR* ArmCodegen::StoreBaseDispWide(CompilationUnit* cu, int rBase, int displacement, |
| 1031 | int r_src_lo, int r_src_hi) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1032 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1033 | return StoreBaseDispBody(cu, rBase, displacement, r_src_lo, r_src_hi, kLong); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1034 | } |
| 1035 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1036 | LIR* ArmCodegen::OpFpRegCopy(CompilationUnit* cu, int r_dest, int r_src) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1037 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1038 | int opcode; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1039 | DCHECK_EQ(ARM_DOUBLEREG(r_dest), ARM_DOUBLEREG(r_src)); |
| 1040 | if (ARM_DOUBLEREG(r_dest)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1041 | opcode = kThumb2Vmovd; |
| 1042 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1043 | if (ARM_SINGLEREG(r_dest)) { |
| 1044 | opcode = ARM_SINGLEREG(r_src) ? kThumb2Vmovs : kThumb2Fmsr; |
buzbee | a2ebdd7 | 2012-03-04 14:57:06 -0800 | [diff] [blame] | 1045 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1046 | DCHECK(ARM_SINGLEREG(r_src)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1047 | opcode = kThumb2Fmrs; |
buzbee | a2ebdd7 | 2012-03-04 14:57:06 -0800 | [diff] [blame] | 1048 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1049 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1050 | LIR* res = RawLIR(cu, cu->current_dalvik_offset, opcode, r_dest, r_src); |
| 1051 | if (!(cu->disable_opt & (1 << kSafeOptimizations)) && r_dest == r_src) { |
| 1052 | res->flags.is_nop = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1053 | } |
| 1054 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1055 | } |
| 1056 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1057 | LIR* ArmCodegen::OpThreadMem(CompilationUnit* cu, OpKind op, int thread_offset) |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1058 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1059 | LOG(FATAL) << "Unexpected use of OpThreadMem for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1060 | return NULL; |
| 1061 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1062 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1063 | LIR* ArmCodegen::OpMem(CompilationUnit* cu, OpKind op, int rBase, int disp) |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1064 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1065 | LOG(FATAL) << "Unexpected use of OpMem for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1066 | return NULL; |
| 1067 | } |
| 1068 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1069 | LIR* ArmCodegen::StoreBaseIndexedDisp(CompilationUnit *cu, int rBase, int r_index, int scale, |
| 1070 | int displacement, int r_src, int r_src_hi, OpSize size, |
| 1071 | int s_reg) |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1072 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1073 | LOG(FATAL) << "Unexpected use of StoreBaseIndexedDisp for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1074 | return NULL; |
| 1075 | } |
| 1076 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1077 | 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] | 1078 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1079 | LOG(FATAL) << "Unexpected use of OpRegMem for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1080 | return NULL; |
| 1081 | } |
| 1082 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1083 | LIR* ArmCodegen::LoadBaseIndexedDisp(CompilationUnit *cu, int rBase, int r_index, int scale, |
| 1084 | int displacement, int r_dest, int r_dest_hi, OpSize size, |
| 1085 | int s_reg) |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1086 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1087 | LOG(FATAL) << "Unexpected use of LoadBaseIndexedDisp for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1088 | return NULL; |
| 1089 | } |
Elliott Hughes | 11d1b0c | 2012-01-23 16:57:47 -0800 | [diff] [blame] | 1090 | |
| 1091 | } // namespace art |