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" |
Ian Rogers | 8d3a117 | 2013-06-04 01:13:28 -0700 | [diff] [blame^] | 19 | #include "compiler/dex/quick/mir_to_lir-inl.h" |
buzbee | 1bc37c6 | 2012-11-20 13:35:41 -0800 | [diff] [blame] | 20 | |
Elliott Hughes | 11d1b0c | 2012-01-23 16:57:47 -0800 | [diff] [blame] | 21 | namespace art { |
| 22 | |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 23 | /* This file contains codegen for the Thumb ISA. */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 24 | |
buzbee | aad9438 | 2012-11-21 07:40:50 -0800 | [diff] [blame] | 25 | static int EncodeImmSingle(int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 26 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 27 | int res; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 28 | int bit_a = (value & 0x80000000) >> 31; |
| 29 | int not_bit_b = (value & 0x40000000) >> 30; |
| 30 | int bit_b = (value & 0x20000000) >> 29; |
| 31 | int b_smear = (value & 0x3e000000) >> 25; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 32 | int slice = (value & 0x01f80000) >> 19; |
| 33 | int zeroes = (value & 0x0007ffff); |
| 34 | if (zeroes != 0) |
| 35 | return -1; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 36 | if (bit_b) { |
| 37 | if ((not_bit_b != 0) || (b_smear != 0x1f)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 38 | return -1; |
| 39 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 40 | if ((not_bit_b != 1) || (b_smear != 0x0)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 41 | return -1; |
| 42 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 43 | res = (bit_a << 7) | (bit_b << 6) | slice; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 44 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 45 | } |
| 46 | |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 47 | /* |
| 48 | * Determine whether value can be encoded as a Thumb2 floating point |
| 49 | * immediate. If not, return -1. If so return encoded 8-bit value. |
| 50 | */ |
| 51 | static int EncodeImmDouble(int64_t value) |
| 52 | { |
| 53 | int res; |
| 54 | int bit_a = (value & 0x8000000000000000ll) >> 63; |
| 55 | int not_bit_b = (value & 0x4000000000000000ll) >> 62; |
| 56 | int bit_b = (value & 0x2000000000000000ll) >> 61; |
| 57 | int b_smear = (value & 0x3fc0000000000000ll) >> 54; |
| 58 | int slice = (value & 0x003f000000000000ll) >> 48; |
| 59 | uint64_t zeroes = (value & 0x0000ffffffffffffll); |
| 60 | if (zeroes != 0) |
| 61 | return -1; |
| 62 | if (bit_b) { |
| 63 | if ((not_bit_b != 0) || (b_smear != 0xff)) |
| 64 | return -1; |
| 65 | } else { |
| 66 | if ((not_bit_b != 1) || (b_smear != 0x0)) |
| 67 | return -1; |
| 68 | } |
| 69 | res = (bit_a << 7) | (bit_b << 6) | slice; |
| 70 | return res; |
| 71 | } |
| 72 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 73 | LIR* ArmMir2Lir::LoadFPConstantValue(int r_dest, int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 74 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 75 | DCHECK(ARM_SINGLEREG(r_dest)); |
buzbee | 7da142f | 2012-11-29 16:33:42 -0800 | [diff] [blame] | 76 | if (value == 0) { |
| 77 | // TODO: we need better info about the target CPU. a vector exclusive or |
| 78 | // would probably be better here if we could rely on its existance. |
| 79 | // Load an immediate +2.0 (which encodes to 0) |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 80 | NewLIR2(kThumb2Vmovs_IMM8, r_dest, 0); |
buzbee | 7da142f | 2012-11-29 16:33:42 -0800 | [diff] [blame] | 81 | // +0.0 = +2.0 - +2.0 |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 82 | return NewLIR3(kThumb2Vsubs, r_dest, r_dest, r_dest); |
buzbee | 7da142f | 2012-11-29 16:33:42 -0800 | [diff] [blame] | 83 | } else { |
| 84 | int encoded_imm = EncodeImmSingle(value); |
| 85 | if (encoded_imm >= 0) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 86 | return NewLIR2(kThumb2Vmovs_IMM8, r_dest, encoded_imm); |
buzbee | 7da142f | 2012-11-29 16:33:42 -0800 | [diff] [blame] | 87 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 88 | } |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 89 | LIR* data_target = ScanLiteralPool(literal_list_, value, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 90 | if (data_target == NULL) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 91 | data_target = AddWordData(&literal_list_, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 92 | } |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 93 | LIR* load_pc_rel = RawLIR(current_dalvik_offset_, kThumb2Vldrs, |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 94 | r_dest, r15pc, 0, 0, 0, data_target); |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 95 | SetMemRefType(load_pc_rel, true, kLiteral); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 96 | load_pc_rel->alias_info = reinterpret_cast<uintptr_t>(data_target); |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 97 | AppendLIR(load_pc_rel); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 98 | return load_pc_rel; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 99 | } |
| 100 | |
buzbee | aad9438 | 2012-11-21 07:40:50 -0800 | [diff] [blame] | 101 | static int LeadingZeros(uint32_t val) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 102 | { |
buzbee | eaf09bc | 2012-11-15 14:51:41 -0800 | [diff] [blame] | 103 | uint32_t alt; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 104 | int n; |
| 105 | int count; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 106 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 107 | count = 16; |
| 108 | n = 32; |
| 109 | do { |
| 110 | alt = val >> count; |
| 111 | if (alt != 0) { |
| 112 | n = n - count; |
| 113 | val = alt; |
| 114 | } |
| 115 | count >>= 1; |
| 116 | } while (count); |
| 117 | return n - val; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 118 | } |
| 119 | |
| 120 | /* |
| 121 | * Determine whether value can be encoded as a Thumb2 modified |
| 122 | * immediate. If not, return -1. If so, return i:imm3:a:bcdefgh form. |
| 123 | */ |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 124 | int ArmMir2Lir::ModifiedImmediate(uint32_t value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 125 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 126 | int z_leading; |
| 127 | int z_trailing; |
buzbee | eaf09bc | 2012-11-15 14:51:41 -0800 | [diff] [blame] | 128 | uint32_t b0 = value & 0xff; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 129 | |
| 130 | /* Note: case of value==0 must use 0:000:0:0000000 encoding */ |
| 131 | if (value <= 0xFF) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 132 | return b0; // 0:000:a:bcdefgh |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 133 | if (value == ((b0 << 16) | b0)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 134 | return (0x1 << 8) | b0; /* 0:001:a:bcdefgh */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 135 | if (value == ((b0 << 24) | (b0 << 16) | (b0 << 8) | b0)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 136 | return (0x3 << 8) | b0; /* 0:011:a:bcdefgh */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 137 | b0 = (value >> 8) & 0xff; |
| 138 | if (value == ((b0 << 24) | (b0 << 8))) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 139 | return (0x2 << 8) | b0; /* 0:010:a:bcdefgh */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 140 | /* Can we do it with rotation? */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 141 | z_leading = LeadingZeros(value); |
| 142 | z_trailing = 32 - LeadingZeros(~value & (value - 1)); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 143 | /* A run of eight or fewer active bits? */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 144 | if ((z_leading + z_trailing) < 24) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 145 | return -1; /* No - bail */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 146 | /* left-justify the constant, discarding msb (known to be 1) */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 147 | value <<= z_leading + 1; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 148 | /* Create bcdefgh */ |
| 149 | value >>= 25; |
| 150 | /* Put it all together */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 151 | return value | ((0x8 + z_leading) << 7); /* [01000..11111]:bcdefgh */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 152 | } |
| 153 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 154 | bool ArmMir2Lir::InexpensiveConstantInt(int32_t value) |
buzbee | e6285f9 | 2012-12-06 15:57:46 -0800 | [diff] [blame] | 155 | { |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 156 | return (ModifiedImmediate(value) >= 0) || (ModifiedImmediate(~value) >= 0); |
| 157 | } |
| 158 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 159 | bool ArmMir2Lir::InexpensiveConstantFloat(int32_t value) |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 160 | { |
| 161 | return EncodeImmSingle(value) >= 0; |
| 162 | } |
| 163 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 164 | bool ArmMir2Lir::InexpensiveConstantLong(int64_t value) |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 165 | { |
| 166 | return InexpensiveConstantInt(High32Bits(value)) && InexpensiveConstantInt(Low32Bits(value)); |
| 167 | } |
| 168 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 169 | bool ArmMir2Lir::InexpensiveConstantDouble(int64_t value) |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 170 | { |
| 171 | return EncodeImmDouble(value) >= 0; |
buzbee | e6285f9 | 2012-12-06 15:57:46 -0800 | [diff] [blame] | 172 | } |
| 173 | |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 174 | /* |
| 175 | * Load a immediate using a shortcut if possible; otherwise |
| 176 | * grab from the per-translation literal pool. |
| 177 | * |
| 178 | * No additional register clobbering operation performed. Use this version when |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 179 | * 1) r_dest is freshly returned from AllocTemp or |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 180 | * 2) The codegen is under fixed register usage |
| 181 | */ |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 182 | LIR* ArmMir2Lir::LoadConstantNoClobber(int r_dest, int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 183 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 184 | LIR* res; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 185 | int mod_imm; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 186 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 187 | if (ARM_FPREG(r_dest)) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 188 | return LoadFPConstantValue(r_dest, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 189 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 190 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 191 | /* See if the value can be constructed cheaply */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 192 | if (ARM_LOWREG(r_dest) && (value >= 0) && (value <= 255)) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 193 | return NewLIR2(kThumbMovImm, r_dest, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 194 | } |
| 195 | /* Check Modified immediate special cases */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 196 | mod_imm = ModifiedImmediate(value); |
| 197 | if (mod_imm >= 0) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 198 | res = NewLIR2(kThumb2MovImmShift, r_dest, mod_imm); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 199 | return res; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 200 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 201 | mod_imm = ModifiedImmediate(~value); |
| 202 | if (mod_imm >= 0) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 203 | res = NewLIR2(kThumb2MvnImm12, r_dest, mod_imm); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 204 | return res; |
| 205 | } |
| 206 | /* 16-bit immediate? */ |
| 207 | if ((value & 0xffff) == value) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 208 | res = NewLIR2(kThumb2MovImm16, r_dest, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 209 | return res; |
| 210 | } |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 211 | /* Do a low/high pair */ |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 212 | res = NewLIR2(kThumb2MovImm16, r_dest, Low16Bits(value)); |
| 213 | NewLIR2(kThumb2MovImm16H, r_dest, High16Bits(value)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 214 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 215 | } |
| 216 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 217 | LIR* ArmMir2Lir::OpUnconditionalBranch(LIR* target) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 218 | { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 219 | LIR* res = NewLIR1(kThumbBUncond, 0 /* offset to be patched during assembly*/); |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 220 | res->target = target; |
| 221 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 222 | } |
| 223 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 224 | LIR* ArmMir2Lir::OpCondBranch(ConditionCode cc, LIR* target) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 225 | { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 226 | LIR* branch = NewLIR2(kThumb2BCond, 0 /* offset to be patched */, |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 227 | ArmConditionEncoding(cc)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 228 | branch->target = target; |
| 229 | return branch; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 230 | } |
| 231 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 232 | LIR* ArmMir2Lir::OpReg(OpKind op, int r_dest_src) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 233 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 234 | ArmOpcode opcode = kThumbBkpt; |
| 235 | switch (op) { |
| 236 | case kOpBlx: |
| 237 | opcode = kThumbBlxR; |
| 238 | break; |
| 239 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 240 | LOG(FATAL) << "Bad opcode " << op; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 241 | } |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 242 | return NewLIR1(opcode, r_dest_src); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 243 | } |
| 244 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 245 | LIR* ArmMir2Lir::OpRegRegShift(OpKind op, int r_dest_src1, int r_src2, |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 246 | int shift) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 247 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 248 | 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] | 249 | ArmOpcode opcode = kThumbBkpt; |
| 250 | switch (op) { |
| 251 | case kOpAdc: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 252 | opcode = (thumb_form) ? kThumbAdcRR : kThumb2AdcRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 253 | break; |
| 254 | case kOpAnd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 255 | opcode = (thumb_form) ? kThumbAndRR : kThumb2AndRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 256 | break; |
| 257 | case kOpBic: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 258 | opcode = (thumb_form) ? kThumbBicRR : kThumb2BicRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 259 | break; |
| 260 | case kOpCmn: |
| 261 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 262 | opcode = (thumb_form) ? kThumbCmnRR : kThumb2CmnRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 263 | break; |
| 264 | case kOpCmp: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 265 | if (thumb_form) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 266 | opcode = kThumbCmpRR; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 267 | 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] | 268 | opcode = kThumbCmpHH; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 269 | else if ((shift == 0) && ARM_LOWREG(r_dest_src1)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 270 | opcode = kThumbCmpLH; |
| 271 | else if (shift == 0) |
| 272 | opcode = kThumbCmpHL; |
| 273 | else |
| 274 | opcode = kThumb2CmpRR; |
| 275 | break; |
| 276 | case kOpXor: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 277 | opcode = (thumb_form) ? kThumbEorRR : kThumb2EorRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 278 | break; |
| 279 | case kOpMov: |
| 280 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 281 | if (ARM_LOWREG(r_dest_src1) && ARM_LOWREG(r_src2)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 282 | opcode = kThumbMovRR; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 283 | else if (!ARM_LOWREG(r_dest_src1) && !ARM_LOWREG(r_src2)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 284 | opcode = kThumbMovRR_H2H; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 285 | else if (ARM_LOWREG(r_dest_src1)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 286 | opcode = kThumbMovRR_H2L; |
| 287 | else |
| 288 | opcode = kThumbMovRR_L2H; |
| 289 | break; |
| 290 | case kOpMul: |
| 291 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 292 | opcode = (thumb_form) ? kThumbMul : kThumb2MulRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 293 | break; |
| 294 | case kOpMvn: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 295 | opcode = (thumb_form) ? kThumbMvn : kThumb2MnvRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 296 | break; |
| 297 | case kOpNeg: |
| 298 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 299 | opcode = (thumb_form) ? kThumbNeg : kThumb2NegRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 300 | break; |
| 301 | case kOpOr: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 302 | opcode = (thumb_form) ? kThumbOrr : kThumb2OrrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 303 | break; |
| 304 | case kOpSbc: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 305 | opcode = (thumb_form) ? kThumbSbc : kThumb2SbcRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 306 | break; |
| 307 | case kOpTst: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 308 | opcode = (thumb_form) ? kThumbTst : kThumb2TstRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 309 | break; |
| 310 | case kOpLsl: |
| 311 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 312 | opcode = (thumb_form) ? kThumbLslRR : kThumb2LslRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 313 | break; |
| 314 | case kOpLsr: |
| 315 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 316 | opcode = (thumb_form) ? kThumbLsrRR : kThumb2LsrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 317 | break; |
| 318 | case kOpAsr: |
| 319 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 320 | opcode = (thumb_form) ? kThumbAsrRR : kThumb2AsrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 321 | break; |
| 322 | case kOpRor: |
| 323 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 324 | opcode = (thumb_form) ? kThumbRorRR : kThumb2RorRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 325 | break; |
| 326 | case kOpAdd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 327 | opcode = (thumb_form) ? kThumbAddRRR : kThumb2AddRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 328 | break; |
| 329 | case kOpSub: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 330 | opcode = (thumb_form) ? kThumbSubRRR : kThumb2SubRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 331 | break; |
| 332 | case kOp2Byte: |
| 333 | DCHECK_EQ(shift, 0); |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 334 | return NewLIR4(kThumb2Sbfx, r_dest_src1, r_src2, 0, 8); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 335 | case kOp2Short: |
| 336 | DCHECK_EQ(shift, 0); |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 337 | return NewLIR4(kThumb2Sbfx, r_dest_src1, r_src2, 0, 16); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 338 | case kOp2Char: |
| 339 | DCHECK_EQ(shift, 0); |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 340 | return NewLIR4(kThumb2Ubfx, r_dest_src1, r_src2, 0, 16); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 341 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 342 | LOG(FATAL) << "Bad opcode: " << op; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 343 | break; |
| 344 | } |
| 345 | DCHECK_GE(static_cast<int>(opcode), 0); |
| 346 | if (EncodingMap[opcode].flags & IS_BINARY_OP) |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 347 | return NewLIR2(opcode, r_dest_src1, r_src2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 348 | else if (EncodingMap[opcode].flags & IS_TERTIARY_OP) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 349 | if (EncodingMap[opcode].field_loc[2].kind == kFmtShift) |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 350 | return NewLIR3(opcode, r_dest_src1, r_src2, shift); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 351 | else |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 352 | return NewLIR3(opcode, r_dest_src1, r_dest_src1, r_src2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 353 | } else if (EncodingMap[opcode].flags & IS_QUAD_OP) |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 354 | return NewLIR4(opcode, r_dest_src1, r_dest_src1, r_src2, shift); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 355 | else { |
| 356 | LOG(FATAL) << "Unexpected encoding operand count"; |
| 357 | return NULL; |
| 358 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 359 | } |
| 360 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 361 | LIR* ArmMir2Lir::OpRegReg(OpKind op, int r_dest_src1, int r_src2) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 362 | { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 363 | return OpRegRegShift(op, r_dest_src1, r_src2, 0); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 364 | } |
| 365 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 366 | LIR* ArmMir2Lir::OpRegRegRegShift(OpKind op, int r_dest, int r_src1, |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 367 | int r_src2, int shift) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 368 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 369 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 370 | bool thumb_form = (shift == 0) && ARM_LOWREG(r_dest) && ARM_LOWREG(r_src1) && |
| 371 | ARM_LOWREG(r_src2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 372 | switch (op) { |
| 373 | case kOpAdd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 374 | opcode = (thumb_form) ? kThumbAddRRR : kThumb2AddRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 375 | break; |
| 376 | case kOpSub: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 377 | opcode = (thumb_form) ? kThumbSubRRR : kThumb2SubRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 378 | break; |
| 379 | case kOpRsub: |
| 380 | opcode = kThumb2RsubRRR; |
| 381 | break; |
| 382 | case kOpAdc: |
| 383 | opcode = kThumb2AdcRRR; |
| 384 | break; |
| 385 | case kOpAnd: |
| 386 | opcode = kThumb2AndRRR; |
| 387 | break; |
| 388 | case kOpBic: |
| 389 | opcode = kThumb2BicRRR; |
| 390 | break; |
| 391 | case kOpXor: |
| 392 | opcode = kThumb2EorRRR; |
| 393 | break; |
| 394 | case kOpMul: |
| 395 | DCHECK_EQ(shift, 0); |
| 396 | opcode = kThumb2MulRRR; |
| 397 | break; |
| 398 | case kOpOr: |
| 399 | opcode = kThumb2OrrRRR; |
| 400 | break; |
| 401 | case kOpSbc: |
| 402 | opcode = kThumb2SbcRRR; |
| 403 | break; |
| 404 | case kOpLsl: |
| 405 | DCHECK_EQ(shift, 0); |
| 406 | opcode = kThumb2LslRRR; |
| 407 | break; |
| 408 | case kOpLsr: |
| 409 | DCHECK_EQ(shift, 0); |
| 410 | opcode = kThumb2LsrRRR; |
| 411 | break; |
| 412 | case kOpAsr: |
| 413 | DCHECK_EQ(shift, 0); |
| 414 | opcode = kThumb2AsrRRR; |
| 415 | break; |
| 416 | case kOpRor: |
| 417 | DCHECK_EQ(shift, 0); |
| 418 | opcode = kThumb2RorRRR; |
| 419 | break; |
| 420 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 421 | LOG(FATAL) << "Bad opcode: " << op; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 422 | break; |
| 423 | } |
| 424 | DCHECK_GE(static_cast<int>(opcode), 0); |
| 425 | if (EncodingMap[opcode].flags & IS_QUAD_OP) |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 426 | return NewLIR4(opcode, r_dest, r_src1, r_src2, shift); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 427 | else { |
| 428 | DCHECK(EncodingMap[opcode].flags & IS_TERTIARY_OP); |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 429 | return NewLIR3(opcode, r_dest, r_src1, r_src2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 430 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 431 | } |
| 432 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 433 | LIR* ArmMir2Lir::OpRegRegReg(OpKind op, int r_dest, int r_src1, int r_src2) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 434 | { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 435 | return OpRegRegRegShift(op, r_dest, r_src1, r_src2, 0); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 436 | } |
| 437 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 438 | LIR* ArmMir2Lir::OpRegRegImm(OpKind op, int r_dest, int r_src1, int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 439 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 440 | LIR* res; |
| 441 | bool neg = (value < 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 442 | int abs_value = (neg) ? -value : value; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 443 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 444 | ArmOpcode alt_opcode = kThumbBkpt; |
| 445 | bool all_low_regs = (ARM_LOWREG(r_dest) && ARM_LOWREG(r_src1)); |
| 446 | int mod_imm = ModifiedImmediate(value); |
| 447 | int mod_imm_neg = ModifiedImmediate(-value); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 448 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 449 | switch (op) { |
| 450 | case kOpLsl: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 451 | if (all_low_regs) |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 452 | return NewLIR3(kThumbLslRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 453 | else |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 454 | return NewLIR3(kThumb2LslRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 455 | case kOpLsr: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 456 | if (all_low_regs) |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 457 | return NewLIR3(kThumbLsrRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 458 | else |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 459 | return NewLIR3(kThumb2LsrRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 460 | case kOpAsr: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 461 | if (all_low_regs) |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 462 | return NewLIR3(kThumbAsrRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 463 | else |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 464 | return NewLIR3(kThumb2AsrRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 465 | case kOpRor: |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 466 | return NewLIR3(kThumb2RorRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 467 | case kOpAdd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 468 | if (ARM_LOWREG(r_dest) && (r_src1 == r13sp) && |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 469 | (value <= 1020) && ((value & 0x3)==0)) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 470 | return NewLIR3(kThumbAddSpRel, r_dest, r_src1, value >> 2); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 471 | } else if (ARM_LOWREG(r_dest) && (r_src1 == r15pc) && |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 472 | (value <= 1020) && ((value & 0x3)==0)) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 473 | return NewLIR3(kThumbAddPcRel, r_dest, r_src1, value >> 2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 474 | } |
| 475 | // Note: intentional fallthrough |
| 476 | case kOpSub: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 477 | if (all_low_regs && ((abs_value & 0x7) == abs_value)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 478 | if (op == kOpAdd) |
| 479 | opcode = (neg) ? kThumbSubRRI3 : kThumbAddRRI3; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 480 | else |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 481 | opcode = (neg) ? kThumbAddRRI3 : kThumbSubRRI3; |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 482 | return NewLIR3(opcode, r_dest, r_src1, abs_value); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 483 | } else if ((abs_value & 0xff) == abs_value) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 484 | if (op == kOpAdd) |
| 485 | opcode = (neg) ? kThumb2SubRRI12 : kThumb2AddRRI12; |
| 486 | else |
| 487 | opcode = (neg) ? kThumb2AddRRI12 : kThumb2SubRRI12; |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 488 | return NewLIR3(opcode, r_dest, r_src1, abs_value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 489 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 490 | if (mod_imm_neg >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 491 | op = (op == kOpAdd) ? kOpSub : kOpAdd; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 492 | mod_imm = mod_imm_neg; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 493 | } |
| 494 | if (op == kOpSub) { |
| 495 | opcode = kThumb2SubRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 496 | alt_opcode = kThumb2SubRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 497 | } else { |
| 498 | opcode = kThumb2AddRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 499 | alt_opcode = kThumb2AddRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 500 | } |
| 501 | break; |
buzbee | c7d1f91 | 2013-02-07 15:22:39 -0800 | [diff] [blame] | 502 | case kOpRsub: |
| 503 | opcode = kThumb2RsubRRI8; |
| 504 | alt_opcode = kThumb2RsubRRR; |
| 505 | break; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 506 | case kOpAdc: |
| 507 | opcode = kThumb2AdcRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 508 | alt_opcode = kThumb2AdcRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 509 | break; |
| 510 | case kOpSbc: |
| 511 | opcode = kThumb2SbcRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 512 | alt_opcode = kThumb2SbcRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 513 | break; |
| 514 | case kOpOr: |
| 515 | opcode = kThumb2OrrRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 516 | alt_opcode = kThumb2OrrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 517 | break; |
| 518 | case kOpAnd: |
| 519 | opcode = kThumb2AndRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 520 | alt_opcode = kThumb2AndRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 521 | break; |
| 522 | case kOpXor: |
| 523 | opcode = kThumb2EorRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 524 | alt_opcode = kThumb2EorRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 525 | break; |
| 526 | case kOpMul: |
| 527 | //TUNING: power of 2, shift & add |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 528 | mod_imm = -1; |
| 529 | alt_opcode = kThumb2MulRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 530 | break; |
| 531 | case kOpCmp: { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 532 | int mod_imm = ModifiedImmediate(value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 533 | LIR* res; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 534 | if (mod_imm >= 0) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 535 | res = NewLIR2(kThumb2CmpRI12, r_src1, mod_imm); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 536 | } else { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 537 | int r_tmp = AllocTemp(); |
| 538 | res = LoadConstant(r_tmp, value); |
| 539 | OpRegReg(kOpCmp, r_src1, r_tmp); |
| 540 | FreeTemp(r_tmp); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 541 | } |
| 542 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 543 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 544 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 545 | LOG(FATAL) << "Bad opcode: " << op; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 546 | } |
| 547 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 548 | if (mod_imm >= 0) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 549 | return NewLIR3(opcode, r_dest, r_src1, mod_imm); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 550 | } else { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 551 | int r_scratch = AllocTemp(); |
| 552 | LoadConstant(r_scratch, value); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 553 | if (EncodingMap[alt_opcode].flags & IS_QUAD_OP) |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 554 | res = NewLIR4(alt_opcode, r_dest, r_src1, r_scratch, 0); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 555 | else |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 556 | res = NewLIR3(alt_opcode, r_dest, r_src1, r_scratch); |
| 557 | FreeTemp(r_scratch); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 558 | return res; |
| 559 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 560 | } |
| 561 | |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 562 | /* Handle Thumb-only variants here - otherwise punt to OpRegRegImm */ |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 563 | LIR* ArmMir2Lir::OpRegImm(OpKind op, int r_dest_src1, int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 564 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 565 | bool neg = (value < 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 566 | int abs_value = (neg) ? -value : value; |
| 567 | 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] | 568 | ArmOpcode opcode = kThumbBkpt; |
| 569 | switch (op) { |
| 570 | case kOpAdd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 571 | if ( !neg && (r_dest_src1 == r13sp) && (value <= 508)) { /* sp */ |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 572 | DCHECK_EQ((value & 0x3), 0); |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 573 | return NewLIR1(kThumbAddSpI7, value >> 2); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 574 | } else if (short_form) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 575 | opcode = (neg) ? kThumbSubRI8 : kThumbAddRI8; |
| 576 | } |
| 577 | break; |
| 578 | case kOpSub: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 579 | if (!neg && (r_dest_src1 == r13sp) && (value <= 508)) { /* sp */ |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 580 | DCHECK_EQ((value & 0x3), 0); |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 581 | return NewLIR1(kThumbSubSpI7, value >> 2); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 582 | } else if (short_form) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 583 | opcode = (neg) ? kThumbAddRI8 : kThumbSubRI8; |
| 584 | } |
| 585 | break; |
| 586 | case kOpCmp: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 587 | if (ARM_LOWREG(r_dest_src1) && short_form) |
| 588 | opcode = (short_form) ? kThumbCmpRI8 : kThumbCmpRR; |
| 589 | else if (ARM_LOWREG(r_dest_src1)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 590 | opcode = kThumbCmpRR; |
| 591 | else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 592 | short_form = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 593 | opcode = kThumbCmpHL; |
| 594 | } |
| 595 | break; |
| 596 | default: |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 597 | /* Punt to OpRegRegImm - if bad case catch it there */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 598 | short_form = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 599 | break; |
| 600 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 601 | if (short_form) |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 602 | return NewLIR2(opcode, r_dest_src1, abs_value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 603 | else { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 604 | return OpRegRegImm(op, r_dest_src1, r_dest_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 605 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 606 | } |
| 607 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 608 | LIR* ArmMir2Lir::LoadConstantWide(int r_dest_lo, int r_dest_hi, int64_t value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 609 | { |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 610 | LIR* res = NULL; |
| 611 | int32_t val_lo = Low32Bits(value); |
| 612 | int32_t val_hi = High32Bits(value); |
buzbee | 7da142f | 2012-11-29 16:33:42 -0800 | [diff] [blame] | 613 | int target_reg = S2d(r_dest_lo, r_dest_hi); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 614 | if (ARM_FPREG(r_dest_lo)) { |
buzbee | 7da142f | 2012-11-29 16:33:42 -0800 | [diff] [blame] | 615 | if ((val_lo == 0) && (val_hi == 0)) { |
| 616 | // TODO: we need better info about the target CPU. a vector exclusive or |
| 617 | // would probably be better here if we could rely on its existance. |
| 618 | // Load an immediate +2.0 (which encodes to 0) |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 619 | NewLIR2(kThumb2Vmovd_IMM8, target_reg, 0); |
buzbee | 7da142f | 2012-11-29 16:33:42 -0800 | [diff] [blame] | 620 | // +0.0 = +2.0 - +2.0 |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 621 | res = NewLIR3(kThumb2Vsubd, target_reg, target_reg, target_reg); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 622 | } else { |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 623 | int encoded_imm = EncodeImmDouble(value); |
buzbee | 7da142f | 2012-11-29 16:33:42 -0800 | [diff] [blame] | 624 | if (encoded_imm >= 0) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 625 | res = NewLIR2(kThumb2Vmovd_IMM8, target_reg, encoded_imm); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 626 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 627 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 628 | } else { |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 629 | if ((InexpensiveConstantInt(val_lo) && (InexpensiveConstantInt(val_hi)))) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 630 | res = LoadConstantNoClobber(r_dest_lo, val_lo); |
| 631 | LoadConstantNoClobber(r_dest_hi, val_hi); |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 632 | } |
| 633 | } |
| 634 | if (res == NULL) { |
| 635 | // No short form - load from the literal pool. |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 636 | LIR* data_target = ScanLiteralPoolWide(literal_list_, val_lo, val_hi); |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 637 | if (data_target == NULL) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 638 | data_target = AddWideData(&literal_list_, val_lo, val_hi); |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 639 | } |
| 640 | if (ARM_FPREG(r_dest_lo)) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 641 | res = RawLIR(current_dalvik_offset_, kThumb2Vldrd, |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 642 | target_reg, r15pc, 0, 0, 0, data_target); |
| 643 | } else { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 644 | res = RawLIR(current_dalvik_offset_, kThumb2LdrdPcRel8, |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 645 | r_dest_lo, r_dest_hi, r15pc, 0, 0, data_target); |
| 646 | } |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 647 | SetMemRefType(res, true, kLiteral); |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 648 | res->alias_info = reinterpret_cast<uintptr_t>(data_target); |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 649 | AppendLIR(res); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 650 | } |
| 651 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 652 | } |
| 653 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 654 | int ArmMir2Lir::EncodeShift(int code, int amount) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 655 | return ((amount & 0x1f) << 2) | code; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 656 | } |
| 657 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 658 | LIR* ArmMir2Lir::LoadBaseIndexed(int rBase, int r_index, int r_dest, |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 659 | int scale, OpSize size) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 660 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 661 | 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] | 662 | LIR* load; |
| 663 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 664 | bool thumb_form = (all_low_regs && (scale == 0)); |
| 665 | int reg_ptr; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 666 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 667 | if (ARM_FPREG(r_dest)) { |
| 668 | if (ARM_SINGLEREG(r_dest)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 669 | DCHECK((size == kWord) || (size == kSingle)); |
| 670 | opcode = kThumb2Vldrs; |
| 671 | size = kSingle; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 672 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 673 | DCHECK(ARM_DOUBLEREG(r_dest)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 674 | DCHECK((size == kLong) || (size == kDouble)); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 675 | DCHECK_EQ((r_dest & 0x1), 0); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 676 | opcode = kThumb2Vldrd; |
| 677 | size = kDouble; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 678 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 679 | } else { |
| 680 | if (size == kSingle) |
| 681 | size = kWord; |
| 682 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 683 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 684 | switch (size) { |
| 685 | case kDouble: // fall-through |
| 686 | case kSingle: |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 687 | reg_ptr = AllocTemp(); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 688 | if (scale) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 689 | NewLIR4(kThumb2AddRRR, reg_ptr, rBase, r_index, |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 690 | EncodeShift(kArmLsl, scale)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 691 | } else { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 692 | OpRegRegReg(kOpAdd, reg_ptr, rBase, r_index); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 693 | } |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 694 | load = NewLIR3(opcode, r_dest, reg_ptr, 0); |
| 695 | FreeTemp(reg_ptr); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 696 | return load; |
| 697 | case kWord: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 698 | opcode = (thumb_form) ? kThumbLdrRRR : kThumb2LdrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 699 | break; |
| 700 | case kUnsignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 701 | opcode = (thumb_form) ? kThumbLdrhRRR : kThumb2LdrhRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 702 | break; |
| 703 | case kSignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 704 | opcode = (thumb_form) ? kThumbLdrshRRR : kThumb2LdrshRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 705 | break; |
| 706 | case kUnsignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 707 | opcode = (thumb_form) ? kThumbLdrbRRR : kThumb2LdrbRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 708 | break; |
| 709 | case kSignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 710 | opcode = (thumb_form) ? kThumbLdrsbRRR : kThumb2LdrsbRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 711 | break; |
| 712 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 713 | LOG(FATAL) << "Bad size: " << size; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 714 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 715 | if (thumb_form) |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 716 | load = NewLIR3(opcode, r_dest, rBase, r_index); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 717 | else |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 718 | load = NewLIR4(opcode, r_dest, rBase, r_index, scale); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 719 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 720 | return load; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 721 | } |
| 722 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 723 | LIR* ArmMir2Lir::StoreBaseIndexed(int rBase, int r_index, int r_src, |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 724 | int scale, OpSize size) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 725 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 726 | 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] | 727 | LIR* store = NULL; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 728 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 729 | bool thumb_form = (all_low_regs && (scale == 0)); |
| 730 | int reg_ptr; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 731 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 732 | if (ARM_FPREG(r_src)) { |
| 733 | if (ARM_SINGLEREG(r_src)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 734 | DCHECK((size == kWord) || (size == kSingle)); |
| 735 | opcode = kThumb2Vstrs; |
| 736 | size = kSingle; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 737 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 738 | DCHECK(ARM_DOUBLEREG(r_src)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 739 | DCHECK((size == kLong) || (size == kDouble)); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 740 | DCHECK_EQ((r_src & 0x1), 0); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 741 | opcode = kThumb2Vstrd; |
| 742 | size = kDouble; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 743 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 744 | } else { |
| 745 | if (size == kSingle) |
| 746 | size = kWord; |
| 747 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 748 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 749 | switch (size) { |
| 750 | case kDouble: // fall-through |
| 751 | case kSingle: |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 752 | reg_ptr = AllocTemp(); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 753 | if (scale) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 754 | NewLIR4(kThumb2AddRRR, reg_ptr, rBase, r_index, |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 755 | EncodeShift(kArmLsl, scale)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 756 | } else { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 757 | OpRegRegReg(kOpAdd, reg_ptr, rBase, r_index); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 758 | } |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 759 | store = NewLIR3(opcode, r_src, reg_ptr, 0); |
| 760 | FreeTemp(reg_ptr); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 761 | return store; |
| 762 | case kWord: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 763 | opcode = (thumb_form) ? kThumbStrRRR : kThumb2StrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 764 | break; |
| 765 | case kUnsignedHalf: |
| 766 | case kSignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 767 | opcode = (thumb_form) ? kThumbStrhRRR : kThumb2StrhRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 768 | break; |
| 769 | case kUnsignedByte: |
| 770 | case kSignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 771 | opcode = (thumb_form) ? kThumbStrbRRR : kThumb2StrbRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 772 | break; |
| 773 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 774 | LOG(FATAL) << "Bad size: " << size; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 775 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 776 | if (thumb_form) |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 777 | store = NewLIR3(opcode, r_src, rBase, r_index); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 778 | else |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 779 | store = NewLIR4(opcode, r_src, rBase, r_index, scale); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 780 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 781 | return store; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 782 | } |
| 783 | |
| 784 | /* |
| 785 | * Load value from base + displacement. Optionally perform null check |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 786 | * on base (which must have an associated s_reg and MIR). If not |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 787 | * performing null check, incoming MIR can be null. |
| 788 | */ |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 789 | LIR* ArmMir2Lir::LoadBaseDispBody(int rBase, int displacement, int r_dest, |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 790 | int r_dest_hi, OpSize size, int s_reg) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 791 | { |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 792 | LIR* load = NULL; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 793 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 794 | bool short_form = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 795 | bool thumb2Form = (displacement < 4092 && displacement >= 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 796 | bool all_low_regs = (ARM_LOWREG(rBase) && ARM_LOWREG(r_dest)); |
| 797 | int encoded_disp = displacement; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 798 | bool is64bit = false; |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 799 | bool already_generated = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 800 | switch (size) { |
| 801 | case kDouble: |
| 802 | case kLong: |
| 803 | is64bit = true; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 804 | if (ARM_FPREG(r_dest)) { |
| 805 | if (ARM_SINGLEREG(r_dest)) { |
| 806 | DCHECK(ARM_FPREG(r_dest_hi)); |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 807 | r_dest = S2d(r_dest, r_dest_hi); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 808 | } |
| 809 | opcode = kThumb2Vldrd; |
| 810 | if (displacement <= 1020) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 811 | short_form = true; |
| 812 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 813 | } |
| 814 | break; |
| 815 | } else { |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 816 | if (displacement <= 1020) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 817 | load = NewLIR4(kThumb2LdrdI8, r_dest, r_dest_hi, rBase, displacement >> 2); |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 818 | } else { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 819 | load = LoadBaseDispBody(rBase, displacement, r_dest, |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 820 | -1, kWord, s_reg); |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 821 | LoadBaseDispBody(rBase, displacement + 4, r_dest_hi, |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 822 | -1, kWord, INVALID_SREG); |
| 823 | } |
| 824 | already_generated = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 825 | } |
| 826 | case kSingle: |
| 827 | case kWord: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 828 | if (ARM_FPREG(r_dest)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 829 | opcode = kThumb2Vldrs; |
| 830 | if (displacement <= 1020) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 831 | short_form = true; |
| 832 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 833 | } |
| 834 | break; |
| 835 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 836 | if (ARM_LOWREG(r_dest) && (rBase == r15pc) && |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 837 | (displacement <= 1020) && (displacement >= 0)) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 838 | short_form = true; |
| 839 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 840 | opcode = kThumbLdrPcRel; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 841 | } else if (ARM_LOWREG(r_dest) && (rBase == r13sp) && |
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 = kThumbLdrSpRel; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 846 | } else if (all_low_regs && displacement < 128 && displacement >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 847 | DCHECK_EQ((displacement & 0x3), 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 = kThumbLdrRRI5; |
| 851 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 852 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 853 | opcode = kThumb2LdrRRI12; |
| 854 | } |
| 855 | break; |
| 856 | case kUnsignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 857 | if (all_low_regs && displacement < 64 && displacement >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 858 | DCHECK_EQ((displacement & 0x1), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 859 | short_form = true; |
| 860 | encoded_disp >>= 1; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 861 | opcode = kThumbLdrhRRI5; |
| 862 | } else if (displacement < 4092 && displacement >= 0) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 863 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 864 | opcode = kThumb2LdrhRRI12; |
| 865 | } |
| 866 | break; |
| 867 | case kSignedHalf: |
| 868 | if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 869 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 870 | opcode = kThumb2LdrshRRI12; |
| 871 | } |
| 872 | break; |
| 873 | case kUnsignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 874 | if (all_low_regs && displacement < 32 && displacement >= 0) { |
| 875 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 876 | opcode = kThumbLdrbRRI5; |
| 877 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 878 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 879 | opcode = kThumb2LdrbRRI12; |
| 880 | } |
| 881 | break; |
| 882 | case kSignedByte: |
| 883 | if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 884 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 885 | opcode = kThumb2LdrsbRRI12; |
| 886 | } |
| 887 | break; |
| 888 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 889 | LOG(FATAL) << "Bad size: " << size; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 890 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 891 | |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 892 | if (!already_generated) { |
| 893 | if (short_form) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 894 | load = NewLIR3(opcode, r_dest, rBase, encoded_disp); |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 895 | } else { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 896 | int reg_offset = AllocTemp(); |
| 897 | LoadConstant(reg_offset, encoded_disp); |
| 898 | load = LoadBaseIndexed(rBase, reg_offset, r_dest, 0, size); |
| 899 | FreeTemp(reg_offset); |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 900 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 901 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 902 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 903 | // TODO: in future may need to differentiate Dalvik accesses w/ spills |
buzbee | f0504cd | 2012-11-13 16:31:10 -0800 | [diff] [blame] | 904 | if (rBase == rARM_SP) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 905 | AnnotateDalvikRegAccess(load, displacement >> 2, true /* is_load */, is64bit); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 906 | } |
| 907 | return load; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 908 | } |
| 909 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 910 | LIR* ArmMir2Lir::LoadBaseDisp(int rBase, int displacement, int r_dest, |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 911 | OpSize size, int s_reg) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 912 | { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 913 | return LoadBaseDispBody(rBase, displacement, r_dest, -1, size, s_reg); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 914 | } |
| 915 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 916 | LIR* ArmMir2Lir::LoadBaseDispWide(int rBase, int displacement, int r_dest_lo, |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 917 | int r_dest_hi, int s_reg) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 918 | { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 919 | return LoadBaseDispBody(rBase, displacement, r_dest_lo, r_dest_hi, kLong, s_reg); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 920 | } |
| 921 | |
| 922 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 923 | LIR* ArmMir2Lir::StoreBaseDispBody(int rBase, int displacement, |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 924 | int r_src, int r_src_hi, OpSize size) { |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 925 | LIR* store = NULL; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 926 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 927 | bool short_form = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 928 | bool thumb2Form = (displacement < 4092 && displacement >= 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 929 | bool all_low_regs = (ARM_LOWREG(rBase) && ARM_LOWREG(r_src)); |
| 930 | int encoded_disp = displacement; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 931 | bool is64bit = false; |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 932 | bool already_generated = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 933 | switch (size) { |
| 934 | case kLong: |
| 935 | case kDouble: |
| 936 | is64bit = true; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 937 | if (!ARM_FPREG(r_src)) { |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 938 | if (displacement <= 1020) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 939 | store = NewLIR4(kThumb2StrdI8, r_src, r_src_hi, rBase, displacement >> 2); |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 940 | } else { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 941 | store = StoreBaseDispBody(rBase, displacement, r_src, -1, kWord); |
| 942 | StoreBaseDispBody(rBase, displacement + 4, r_src_hi, -1, kWord); |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 943 | } |
| 944 | already_generated = true; |
| 945 | } else { |
| 946 | if (ARM_SINGLEREG(r_src)) { |
| 947 | DCHECK(ARM_FPREG(r_src_hi)); |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 948 | r_src = S2d(r_src, r_src_hi); |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 949 | } |
| 950 | opcode = kThumb2Vstrd; |
| 951 | if (displacement <= 1020) { |
| 952 | short_form = true; |
| 953 | encoded_disp >>= 2; |
| 954 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 955 | } |
| 956 | break; |
| 957 | case kSingle: |
| 958 | case kWord: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 959 | if (ARM_FPREG(r_src)) { |
| 960 | DCHECK(ARM_SINGLEREG(r_src)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 961 | opcode = kThumb2Vstrs; |
| 962 | if (displacement <= 1020) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 963 | short_form = true; |
| 964 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 965 | } |
Sebastien Hertz | a188cd4 | 2013-03-28 17:23:23 +0100 | [diff] [blame] | 966 | break; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 967 | } |
Sebastien Hertz | a188cd4 | 2013-03-28 17:23:23 +0100 | [diff] [blame] | 968 | if (ARM_LOWREG(r_src) && (rBase == r13sp) && |
| 969 | (displacement <= 1020) && (displacement >= 0)) { |
| 970 | short_form = true; |
| 971 | encoded_disp >>= 2; |
| 972 | opcode = kThumbStrSpRel; |
| 973 | } else if (all_low_regs && displacement < 128 && displacement >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 974 | DCHECK_EQ((displacement & 0x3), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 975 | short_form = true; |
| 976 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 977 | opcode = kThumbStrRRI5; |
| 978 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 979 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 980 | opcode = kThumb2StrRRI12; |
| 981 | } |
| 982 | break; |
| 983 | case kUnsignedHalf: |
| 984 | case kSignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 985 | if (all_low_regs && displacement < 64 && displacement >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 986 | DCHECK_EQ((displacement & 0x1), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 987 | short_form = true; |
| 988 | encoded_disp >>= 1; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 989 | opcode = kThumbStrhRRI5; |
| 990 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 991 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 992 | opcode = kThumb2StrhRRI12; |
| 993 | } |
| 994 | break; |
| 995 | case kUnsignedByte: |
| 996 | case kSignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 997 | if (all_low_regs && displacement < 32 && displacement >= 0) { |
| 998 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 999 | opcode = kThumbStrbRRI5; |
| 1000 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1001 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1002 | opcode = kThumb2StrbRRI12; |
| 1003 | } |
| 1004 | break; |
| 1005 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 1006 | LOG(FATAL) << "Bad size: " << size; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1007 | } |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 1008 | if (!already_generated) { |
| 1009 | if (short_form) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 1010 | store = NewLIR3(opcode, r_src, rBase, encoded_disp); |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 1011 | } else { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 1012 | int r_scratch = AllocTemp(); |
| 1013 | LoadConstant(r_scratch, encoded_disp); |
| 1014 | store = StoreBaseIndexed(rBase, r_scratch, r_src, 0, size); |
| 1015 | FreeTemp(r_scratch); |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 1016 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1017 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1018 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1019 | // TODO: In future, may need to differentiate Dalvik & spill accesses |
buzbee | f0504cd | 2012-11-13 16:31:10 -0800 | [diff] [blame] | 1020 | if (rBase == rARM_SP) { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 1021 | AnnotateDalvikRegAccess(store, displacement >> 2, false /* is_load */, is64bit); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1022 | } |
buzbee | 4ef3e45 | 2012-12-14 13:35:28 -0800 | [diff] [blame] | 1023 | return store; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1024 | } |
| 1025 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 1026 | LIR* ArmMir2Lir::StoreBaseDisp(int rBase, int displacement, int r_src, |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1027 | OpSize size) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1028 | { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 1029 | return StoreBaseDispBody(rBase, displacement, r_src, -1, size); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1030 | } |
| 1031 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 1032 | LIR* ArmMir2Lir::StoreBaseDispWide(int rBase, int displacement, |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1033 | int r_src_lo, int r_src_hi) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1034 | { |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 1035 | return StoreBaseDispBody(rBase, displacement, r_src_lo, r_src_hi, kLong); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1036 | } |
| 1037 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 1038 | LIR* ArmMir2Lir::OpFpRegCopy(int r_dest, int r_src) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1039 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1040 | int opcode; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1041 | DCHECK_EQ(ARM_DOUBLEREG(r_dest), ARM_DOUBLEREG(r_src)); |
| 1042 | if (ARM_DOUBLEREG(r_dest)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1043 | opcode = kThumb2Vmovd; |
| 1044 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1045 | if (ARM_SINGLEREG(r_dest)) { |
| 1046 | opcode = ARM_SINGLEREG(r_src) ? kThumb2Vmovs : kThumb2Fmsr; |
buzbee | a2ebdd7 | 2012-03-04 14:57:06 -0800 | [diff] [blame] | 1047 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1048 | DCHECK(ARM_SINGLEREG(r_src)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1049 | opcode = kThumb2Fmrs; |
buzbee | a2ebdd7 | 2012-03-04 14:57:06 -0800 | [diff] [blame] | 1050 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1051 | } |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 1052 | LIR* res = RawLIR(current_dalvik_offset_, opcode, r_dest, r_src); |
| 1053 | if (!(cu_->disable_opt & (1 << kSafeOptimizations)) && r_dest == r_src) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1054 | res->flags.is_nop = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1055 | } |
| 1056 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1057 | } |
| 1058 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 1059 | LIR* ArmMir2Lir::OpThreadMem(OpKind op, int thread_offset) |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1060 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1061 | LOG(FATAL) << "Unexpected use of OpThreadMem for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1062 | return NULL; |
| 1063 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1064 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 1065 | LIR* ArmMir2Lir::OpMem(OpKind op, int rBase, int disp) |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1066 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1067 | LOG(FATAL) << "Unexpected use of OpMem for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1068 | return NULL; |
| 1069 | } |
| 1070 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 1071 | LIR* ArmMir2Lir::StoreBaseIndexedDisp(int rBase, int r_index, int scale, |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1072 | int displacement, int r_src, int r_src_hi, OpSize size, |
| 1073 | int s_reg) |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1074 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1075 | LOG(FATAL) << "Unexpected use of StoreBaseIndexedDisp for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1076 | return NULL; |
| 1077 | } |
| 1078 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 1079 | LIR* ArmMir2Lir::OpRegMem(OpKind op, int r_dest, int rBase, int offset) |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1080 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1081 | LOG(FATAL) << "Unexpected use of OpRegMem for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1082 | return NULL; |
| 1083 | } |
| 1084 | |
buzbee | 1fd3346 | 2013-03-25 13:40:45 -0700 | [diff] [blame] | 1085 | LIR* ArmMir2Lir::LoadBaseIndexedDisp(int rBase, int r_index, int scale, |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1086 | int displacement, int r_dest, int r_dest_hi, OpSize size, |
| 1087 | int s_reg) |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1088 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1089 | LOG(FATAL) << "Unexpected use of LoadBaseIndexedDisp for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1090 | return NULL; |
| 1091 | } |
Elliott Hughes | 11d1b0c | 2012-01-23 16:57:47 -0800 | [diff] [blame] | 1092 | |
| 1093 | } // namespace art |