buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
buzbee | 1bc37c6 | 2012-11-20 13:35:41 -0800 | [diff] [blame] | 17 | #include "arm_lir.h" |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 18 | #include "codegen_arm.h" |
buzbee | 1bc37c6 | 2012-11-20 13:35:41 -0800 | [diff] [blame] | 19 | #include "../codegen_util.h" |
| 20 | #include "../ralloc_util.h" |
| 21 | |
Elliott Hughes | 11d1b0c | 2012-01-23 16:57:47 -0800 | [diff] [blame] | 22 | namespace art { |
| 23 | |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 24 | /* This file contains codegen for the Thumb ISA. */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 25 | |
buzbee | aad9438 | 2012-11-21 07:40:50 -0800 | [diff] [blame] | 26 | static int EncodeImmSingle(int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 27 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 28 | int res; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 29 | int bit_a = (value & 0x80000000) >> 31; |
| 30 | int not_bit_b = (value & 0x40000000) >> 30; |
| 31 | int bit_b = (value & 0x20000000) >> 29; |
| 32 | int b_smear = (value & 0x3e000000) >> 25; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 33 | int slice = (value & 0x01f80000) >> 19; |
| 34 | int zeroes = (value & 0x0007ffff); |
| 35 | if (zeroes != 0) |
| 36 | return -1; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 37 | if (bit_b) { |
| 38 | if ((not_bit_b != 0) || (b_smear != 0x1f)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 39 | return -1; |
| 40 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 41 | if ((not_bit_b != 1) || (b_smear != 0x0)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 42 | return -1; |
| 43 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 44 | res = (bit_a << 7) | (bit_b << 6) | slice; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 45 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 46 | } |
| 47 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 48 | static LIR* LoadFPConstantValue(CompilationUnit* cu, int r_dest, int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 49 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 50 | DCHECK(ARM_SINGLEREG(r_dest)); |
buzbee | 7da142f | 2012-11-29 16:33:42 -0800 | [diff] [blame^] | 51 | if (value == 0) { |
| 52 | // TODO: we need better info about the target CPU. a vector exclusive or |
| 53 | // would probably be better here if we could rely on its existance. |
| 54 | // Load an immediate +2.0 (which encodes to 0) |
| 55 | NewLIR2(cu, kThumb2Vmovs_IMM8, r_dest, 0); |
| 56 | // +0.0 = +2.0 - +2.0 |
| 57 | return NewLIR3(cu, kThumb2Vsubs, r_dest, r_dest, r_dest); |
| 58 | } else { |
| 59 | int encoded_imm = EncodeImmSingle(value); |
| 60 | if (encoded_imm >= 0) { |
| 61 | return NewLIR2(cu, kThumb2Vmovs_IMM8, r_dest, encoded_imm); |
| 62 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 63 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 64 | LIR* data_target = ScanLiteralPool(cu->literal_list, value, 0); |
| 65 | if (data_target == NULL) { |
| 66 | data_target = AddWordData(cu, &cu->literal_list, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 67 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 68 | LIR* load_pc_rel = RawLIR(cu, cu->current_dalvik_offset, kThumb2Vldrs, |
| 69 | r_dest, r15pc, 0, 0, 0, data_target); |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 70 | SetMemRefType(cu, load_pc_rel, true, kLiteral); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 71 | load_pc_rel->alias_info = reinterpret_cast<uintptr_t>(data_target); |
| 72 | AppendLIR(cu, load_pc_rel); |
| 73 | return load_pc_rel; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 74 | } |
| 75 | |
buzbee | aad9438 | 2012-11-21 07:40:50 -0800 | [diff] [blame] | 76 | static int LeadingZeros(uint32_t val) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 77 | { |
buzbee | eaf09bc | 2012-11-15 14:51:41 -0800 | [diff] [blame] | 78 | uint32_t alt; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 79 | int n; |
| 80 | int count; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 81 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 82 | count = 16; |
| 83 | n = 32; |
| 84 | do { |
| 85 | alt = val >> count; |
| 86 | if (alt != 0) { |
| 87 | n = n - count; |
| 88 | val = alt; |
| 89 | } |
| 90 | count >>= 1; |
| 91 | } while (count); |
| 92 | return n - val; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 93 | } |
| 94 | |
| 95 | /* |
| 96 | * Determine whether value can be encoded as a Thumb2 modified |
| 97 | * immediate. If not, return -1. If so, return i:imm3:a:bcdefgh form. |
| 98 | */ |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 99 | int ArmCodegen::ModifiedImmediate(uint32_t value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 100 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 101 | int z_leading; |
| 102 | int z_trailing; |
buzbee | eaf09bc | 2012-11-15 14:51:41 -0800 | [diff] [blame] | 103 | uint32_t b0 = value & 0xff; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 104 | |
| 105 | /* Note: case of value==0 must use 0:000:0:0000000 encoding */ |
| 106 | if (value <= 0xFF) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 107 | return b0; // 0:000:a:bcdefgh |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 108 | if (value == ((b0 << 16) | b0)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 109 | return (0x1 << 8) | b0; /* 0:001:a:bcdefgh */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 110 | if (value == ((b0 << 24) | (b0 << 16) | (b0 << 8) | b0)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 111 | return (0x3 << 8) | b0; /* 0:011:a:bcdefgh */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 112 | b0 = (value >> 8) & 0xff; |
| 113 | if (value == ((b0 << 24) | (b0 << 8))) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 114 | return (0x2 << 8) | b0; /* 0:010:a:bcdefgh */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 115 | /* Can we do it with rotation? */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 116 | z_leading = LeadingZeros(value); |
| 117 | z_trailing = 32 - LeadingZeros(~value & (value - 1)); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 118 | /* A run of eight or fewer active bits? */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 119 | if ((z_leading + z_trailing) < 24) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 120 | return -1; /* No - bail */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 121 | /* left-justify the constant, discarding msb (known to be 1) */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 122 | value <<= z_leading + 1; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 123 | /* Create bcdefgh */ |
| 124 | value >>= 25; |
| 125 | /* Put it all together */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 126 | return value | ((0x8 + z_leading) << 7); /* [01000..11111]:bcdefgh */ |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 127 | } |
| 128 | |
| 129 | /* |
| 130 | * Load a immediate using a shortcut if possible; otherwise |
| 131 | * grab from the per-translation literal pool. |
| 132 | * |
| 133 | * No additional register clobbering operation performed. Use this version when |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 134 | * 1) r_dest is freshly returned from AllocTemp or |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 135 | * 2) The codegen is under fixed register usage |
| 136 | */ |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 137 | LIR* ArmCodegen::LoadConstantNoClobber(CompilationUnit* cu, int r_dest, int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 138 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 139 | LIR* res; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 140 | int mod_imm; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 141 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 142 | if (ARM_FPREG(r_dest)) { |
| 143 | return LoadFPConstantValue(cu, r_dest, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 144 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 145 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 146 | /* See if the value can be constructed cheaply */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 147 | if (ARM_LOWREG(r_dest) && (value >= 0) && (value <= 255)) { |
| 148 | return NewLIR2(cu, kThumbMovImm, r_dest, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 149 | } |
| 150 | /* Check Modified immediate special cases */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 151 | mod_imm = ModifiedImmediate(value); |
| 152 | if (mod_imm >= 0) { |
| 153 | res = NewLIR2(cu, kThumb2MovImmShift, r_dest, mod_imm); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 154 | return res; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 155 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 156 | mod_imm = ModifiedImmediate(~value); |
| 157 | if (mod_imm >= 0) { |
| 158 | res = NewLIR2(cu, kThumb2MvnImm12, r_dest, mod_imm); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 159 | return res; |
| 160 | } |
| 161 | /* 16-bit immediate? */ |
| 162 | if ((value & 0xffff) == value) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 163 | res = NewLIR2(cu, kThumb2MovImm16, r_dest, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 164 | return res; |
| 165 | } |
| 166 | /* No shortcut - go ahead and use literal pool */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 167 | LIR* data_target = ScanLiteralPool(cu->literal_list, value, 0); |
| 168 | if (data_target == NULL) { |
| 169 | data_target = AddWordData(cu, &cu->literal_list, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 170 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 171 | LIR* load_pc_rel = RawLIR(cu, cu->current_dalvik_offset, |
| 172 | kThumb2LdrPcRel12, r_dest, 0, 0, 0, 0, data_target); |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 173 | SetMemRefType(cu, load_pc_rel, true, kLiteral); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 174 | load_pc_rel->alias_info = reinterpret_cast<uintptr_t>(data_target); |
| 175 | res = load_pc_rel; |
| 176 | AppendLIR(cu, load_pc_rel); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 177 | |
| 178 | /* |
| 179 | * To save space in the constant pool, we use the ADD_RRI8 instruction to |
| 180 | * add up to 255 to an existing constant value. |
| 181 | */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 182 | if (data_target->operands[0] != value) { |
| 183 | OpRegImm(cu, kOpAdd, r_dest, value - data_target->operands[0]); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 184 | } |
| 185 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 186 | } |
| 187 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 188 | LIR* ArmCodegen::OpUnconditionalBranch(CompilationUnit* cu, LIR* target) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 189 | { |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 190 | LIR* res = NewLIR1(cu, kThumbBUncond, 0 /* offset to be patched during assembly*/); |
| 191 | res->target = target; |
| 192 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 193 | } |
| 194 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 195 | LIR* ArmCodegen::OpCondBranch(CompilationUnit* cu, ConditionCode cc, LIR* target) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 196 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 197 | LIR* branch = NewLIR2(cu, kThumb2BCond, 0 /* offset to be patched */, |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 198 | ArmConditionEncoding(cc)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 199 | branch->target = target; |
| 200 | return branch; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 201 | } |
| 202 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 203 | LIR* ArmCodegen::OpReg(CompilationUnit* cu, OpKind op, int r_dest_src) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 204 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 205 | ArmOpcode opcode = kThumbBkpt; |
| 206 | switch (op) { |
| 207 | case kOpBlx: |
| 208 | opcode = kThumbBlxR; |
| 209 | break; |
| 210 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 211 | LOG(FATAL) << "Bad opcode " << op; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 212 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 213 | return NewLIR1(cu, opcode, r_dest_src); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 214 | } |
| 215 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 216 | LIR* ArmCodegen::OpRegRegShift(CompilationUnit* cu, OpKind op, int r_dest_src1, int r_src2, |
| 217 | int shift) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 218 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 219 | 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] | 220 | ArmOpcode opcode = kThumbBkpt; |
| 221 | switch (op) { |
| 222 | case kOpAdc: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 223 | opcode = (thumb_form) ? kThumbAdcRR : kThumb2AdcRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 224 | break; |
| 225 | case kOpAnd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 226 | opcode = (thumb_form) ? kThumbAndRR : kThumb2AndRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 227 | break; |
| 228 | case kOpBic: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 229 | opcode = (thumb_form) ? kThumbBicRR : kThumb2BicRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 230 | break; |
| 231 | case kOpCmn: |
| 232 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 233 | opcode = (thumb_form) ? kThumbCmnRR : kThumb2CmnRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 234 | break; |
| 235 | case kOpCmp: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 236 | if (thumb_form) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 237 | opcode = kThumbCmpRR; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 238 | 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] | 239 | opcode = kThumbCmpHH; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 240 | else if ((shift == 0) && ARM_LOWREG(r_dest_src1)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 241 | opcode = kThumbCmpLH; |
| 242 | else if (shift == 0) |
| 243 | opcode = kThumbCmpHL; |
| 244 | else |
| 245 | opcode = kThumb2CmpRR; |
| 246 | break; |
| 247 | case kOpXor: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 248 | opcode = (thumb_form) ? kThumbEorRR : kThumb2EorRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 249 | break; |
| 250 | case kOpMov: |
| 251 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 252 | if (ARM_LOWREG(r_dest_src1) && ARM_LOWREG(r_src2)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 253 | opcode = kThumbMovRR; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 254 | else if (!ARM_LOWREG(r_dest_src1) && !ARM_LOWREG(r_src2)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 255 | opcode = kThumbMovRR_H2H; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 256 | else if (ARM_LOWREG(r_dest_src1)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 257 | opcode = kThumbMovRR_H2L; |
| 258 | else |
| 259 | opcode = kThumbMovRR_L2H; |
| 260 | break; |
| 261 | case kOpMul: |
| 262 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 263 | opcode = (thumb_form) ? kThumbMul : kThumb2MulRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 264 | break; |
| 265 | case kOpMvn: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 266 | opcode = (thumb_form) ? kThumbMvn : kThumb2MnvRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 267 | break; |
| 268 | case kOpNeg: |
| 269 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 270 | opcode = (thumb_form) ? kThumbNeg : kThumb2NegRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 271 | break; |
| 272 | case kOpOr: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 273 | opcode = (thumb_form) ? kThumbOrr : kThumb2OrrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 274 | break; |
| 275 | case kOpSbc: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 276 | opcode = (thumb_form) ? kThumbSbc : kThumb2SbcRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 277 | break; |
| 278 | case kOpTst: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 279 | opcode = (thumb_form) ? kThumbTst : kThumb2TstRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 280 | break; |
| 281 | case kOpLsl: |
| 282 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 283 | opcode = (thumb_form) ? kThumbLslRR : kThumb2LslRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 284 | break; |
| 285 | case kOpLsr: |
| 286 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 287 | opcode = (thumb_form) ? kThumbLsrRR : kThumb2LsrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 288 | break; |
| 289 | case kOpAsr: |
| 290 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 291 | opcode = (thumb_form) ? kThumbAsrRR : kThumb2AsrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 292 | break; |
| 293 | case kOpRor: |
| 294 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 295 | opcode = (thumb_form) ? kThumbRorRR : kThumb2RorRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 296 | break; |
| 297 | case kOpAdd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 298 | opcode = (thumb_form) ? kThumbAddRRR : kThumb2AddRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 299 | break; |
| 300 | case kOpSub: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 301 | opcode = (thumb_form) ? kThumbSubRRR : kThumb2SubRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 302 | break; |
| 303 | case kOp2Byte: |
| 304 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 305 | return NewLIR4(cu, kThumb2Sbfx, r_dest_src1, r_src2, 0, 8); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 306 | case kOp2Short: |
| 307 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 308 | return NewLIR4(cu, kThumb2Sbfx, r_dest_src1, r_src2, 0, 16); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 309 | case kOp2Char: |
| 310 | DCHECK_EQ(shift, 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 311 | return NewLIR4(cu, kThumb2Ubfx, r_dest_src1, r_src2, 0, 16); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 312 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 313 | LOG(FATAL) << "Bad opcode: " << op; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 314 | break; |
| 315 | } |
| 316 | DCHECK_GE(static_cast<int>(opcode), 0); |
| 317 | if (EncodingMap[opcode].flags & IS_BINARY_OP) |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 318 | return NewLIR2(cu, opcode, r_dest_src1, r_src2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 319 | else if (EncodingMap[opcode].flags & IS_TERTIARY_OP) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 320 | if (EncodingMap[opcode].field_loc[2].kind == kFmtShift) |
| 321 | return NewLIR3(cu, opcode, r_dest_src1, r_src2, shift); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 322 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 323 | return NewLIR3(cu, opcode, r_dest_src1, r_dest_src1, r_src2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 324 | } else if (EncodingMap[opcode].flags & IS_QUAD_OP) |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 325 | 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] | 326 | else { |
| 327 | LOG(FATAL) << "Unexpected encoding operand count"; |
| 328 | return NULL; |
| 329 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 330 | } |
| 331 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 332 | 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] | 333 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 334 | return OpRegRegShift(cu, op, r_dest_src1, r_src2, 0); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 335 | } |
| 336 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 337 | LIR* ArmCodegen::OpRegRegRegShift(CompilationUnit* cu, OpKind op, int r_dest, int r_src1, |
| 338 | int r_src2, int shift) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 339 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 340 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 341 | bool thumb_form = (shift == 0) && ARM_LOWREG(r_dest) && ARM_LOWREG(r_src1) && |
| 342 | ARM_LOWREG(r_src2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 343 | switch (op) { |
| 344 | case kOpAdd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 345 | opcode = (thumb_form) ? kThumbAddRRR : kThumb2AddRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 346 | break; |
| 347 | case kOpSub: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 348 | opcode = (thumb_form) ? kThumbSubRRR : kThumb2SubRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 349 | break; |
| 350 | case kOpRsub: |
| 351 | opcode = kThumb2RsubRRR; |
| 352 | break; |
| 353 | case kOpAdc: |
| 354 | opcode = kThumb2AdcRRR; |
| 355 | break; |
| 356 | case kOpAnd: |
| 357 | opcode = kThumb2AndRRR; |
| 358 | break; |
| 359 | case kOpBic: |
| 360 | opcode = kThumb2BicRRR; |
| 361 | break; |
| 362 | case kOpXor: |
| 363 | opcode = kThumb2EorRRR; |
| 364 | break; |
| 365 | case kOpMul: |
| 366 | DCHECK_EQ(shift, 0); |
| 367 | opcode = kThumb2MulRRR; |
| 368 | break; |
| 369 | case kOpOr: |
| 370 | opcode = kThumb2OrrRRR; |
| 371 | break; |
| 372 | case kOpSbc: |
| 373 | opcode = kThumb2SbcRRR; |
| 374 | break; |
| 375 | case kOpLsl: |
| 376 | DCHECK_EQ(shift, 0); |
| 377 | opcode = kThumb2LslRRR; |
| 378 | break; |
| 379 | case kOpLsr: |
| 380 | DCHECK_EQ(shift, 0); |
| 381 | opcode = kThumb2LsrRRR; |
| 382 | break; |
| 383 | case kOpAsr: |
| 384 | DCHECK_EQ(shift, 0); |
| 385 | opcode = kThumb2AsrRRR; |
| 386 | break; |
| 387 | case kOpRor: |
| 388 | DCHECK_EQ(shift, 0); |
| 389 | opcode = kThumb2RorRRR; |
| 390 | break; |
| 391 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 392 | LOG(FATAL) << "Bad opcode: " << op; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 393 | break; |
| 394 | } |
| 395 | DCHECK_GE(static_cast<int>(opcode), 0); |
| 396 | if (EncodingMap[opcode].flags & IS_QUAD_OP) |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 397 | return NewLIR4(cu, opcode, r_dest, r_src1, r_src2, shift); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 398 | else { |
| 399 | DCHECK(EncodingMap[opcode].flags & IS_TERTIARY_OP); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 400 | return NewLIR3(cu, opcode, r_dest, r_src1, r_src2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 401 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 402 | } |
| 403 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 404 | 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] | 405 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 406 | return OpRegRegRegShift(cu, op, r_dest, r_src1, r_src2, 0); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 407 | } |
| 408 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 409 | 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] | 410 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 411 | LIR* res; |
| 412 | bool neg = (value < 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 413 | int abs_value = (neg) ? -value : value; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 414 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 415 | ArmOpcode alt_opcode = kThumbBkpt; |
| 416 | bool all_low_regs = (ARM_LOWREG(r_dest) && ARM_LOWREG(r_src1)); |
| 417 | int mod_imm = ModifiedImmediate(value); |
| 418 | int mod_imm_neg = ModifiedImmediate(-value); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 419 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 420 | switch (op) { |
| 421 | case kOpLsl: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 422 | if (all_low_regs) |
| 423 | return NewLIR3(cu, kThumbLslRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 424 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 425 | return NewLIR3(cu, kThumb2LslRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 426 | case kOpLsr: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 427 | if (all_low_regs) |
| 428 | return NewLIR3(cu, kThumbLsrRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 429 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 430 | return NewLIR3(cu, kThumb2LsrRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 431 | case kOpAsr: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 432 | if (all_low_regs) |
| 433 | return NewLIR3(cu, kThumbAsrRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 434 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 435 | return NewLIR3(cu, kThumb2AsrRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 436 | case kOpRor: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 437 | return NewLIR3(cu, kThumb2RorRRI5, r_dest, r_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 438 | case kOpAdd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 439 | if (ARM_LOWREG(r_dest) && (r_src1 == r13sp) && |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 440 | (value <= 1020) && ((value & 0x3)==0)) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 441 | return NewLIR3(cu, kThumbAddSpRel, r_dest, r_src1, value >> 2); |
| 442 | } else if (ARM_LOWREG(r_dest) && (r_src1 == r15pc) && |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 443 | (value <= 1020) && ((value & 0x3)==0)) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 444 | return NewLIR3(cu, kThumbAddPcRel, r_dest, r_src1, value >> 2); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 445 | } |
| 446 | // Note: intentional fallthrough |
| 447 | case kOpSub: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 448 | if (all_low_regs && ((abs_value & 0x7) == abs_value)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 449 | if (op == kOpAdd) |
| 450 | opcode = (neg) ? kThumbSubRRI3 : kThumbAddRRI3; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 451 | else |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 452 | opcode = (neg) ? kThumbAddRRI3 : kThumbSubRRI3; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 453 | return NewLIR3(cu, opcode, r_dest, r_src1, abs_value); |
| 454 | } else if ((abs_value & 0xff) == abs_value) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 455 | if (op == kOpAdd) |
| 456 | opcode = (neg) ? kThumb2SubRRI12 : kThumb2AddRRI12; |
| 457 | else |
| 458 | opcode = (neg) ? kThumb2AddRRI12 : kThumb2SubRRI12; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 459 | return NewLIR3(cu, opcode, r_dest, r_src1, abs_value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 460 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 461 | if (mod_imm_neg >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 462 | op = (op == kOpAdd) ? kOpSub : kOpAdd; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 463 | mod_imm = mod_imm_neg; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 464 | } |
| 465 | if (op == kOpSub) { |
| 466 | opcode = kThumb2SubRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 467 | alt_opcode = kThumb2SubRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 468 | } else { |
| 469 | opcode = kThumb2AddRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 470 | alt_opcode = kThumb2AddRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 471 | } |
| 472 | break; |
| 473 | case kOpAdc: |
| 474 | opcode = kThumb2AdcRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 475 | alt_opcode = kThumb2AdcRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 476 | break; |
| 477 | case kOpSbc: |
| 478 | opcode = kThumb2SbcRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 479 | alt_opcode = kThumb2SbcRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 480 | break; |
| 481 | case kOpOr: |
| 482 | opcode = kThumb2OrrRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 483 | alt_opcode = kThumb2OrrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 484 | break; |
| 485 | case kOpAnd: |
| 486 | opcode = kThumb2AndRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 487 | alt_opcode = kThumb2AndRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 488 | break; |
| 489 | case kOpXor: |
| 490 | opcode = kThumb2EorRRI8; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 491 | alt_opcode = kThumb2EorRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 492 | break; |
| 493 | case kOpMul: |
| 494 | //TUNING: power of 2, shift & add |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 495 | mod_imm = -1; |
| 496 | alt_opcode = kThumb2MulRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 497 | break; |
| 498 | case kOpCmp: { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 499 | int mod_imm = ModifiedImmediate(value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 500 | LIR* res; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 501 | if (mod_imm >= 0) { |
| 502 | res = NewLIR2(cu, kThumb2CmpRI8, r_src1, mod_imm); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 503 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 504 | int r_tmp = AllocTemp(cu); |
| 505 | res = LoadConstant(cu, r_tmp, value); |
| 506 | OpRegReg(cu, kOpCmp, r_src1, r_tmp); |
| 507 | FreeTemp(cu, r_tmp); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 508 | } |
| 509 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 510 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 511 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 512 | LOG(FATAL) << "Bad opcode: " << op; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 513 | } |
| 514 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 515 | if (mod_imm >= 0) { |
| 516 | return NewLIR3(cu, opcode, r_dest, r_src1, mod_imm); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 517 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 518 | int r_scratch = AllocTemp(cu); |
| 519 | LoadConstant(cu, r_scratch, value); |
| 520 | if (EncodingMap[alt_opcode].flags & IS_QUAD_OP) |
| 521 | res = NewLIR4(cu, alt_opcode, r_dest, r_src1, r_scratch, 0); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 522 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 523 | res = NewLIR3(cu, alt_opcode, r_dest, r_src1, r_scratch); |
| 524 | FreeTemp(cu, r_scratch); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 525 | return res; |
| 526 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 527 | } |
| 528 | |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 529 | /* Handle Thumb-only variants here - otherwise punt to OpRegRegImm */ |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 530 | LIR* ArmCodegen::OpRegImm(CompilationUnit* cu, OpKind op, int r_dest_src1, int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 531 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 532 | bool neg = (value < 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 533 | int abs_value = (neg) ? -value : value; |
| 534 | 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] | 535 | ArmOpcode opcode = kThumbBkpt; |
| 536 | switch (op) { |
| 537 | case kOpAdd: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 538 | if ( !neg && (r_dest_src1 == r13sp) && (value <= 508)) { /* sp */ |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 539 | DCHECK_EQ((value & 0x3), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 540 | return NewLIR1(cu, kThumbAddSpI7, value >> 2); |
| 541 | } else if (short_form) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 542 | opcode = (neg) ? kThumbSubRI8 : kThumbAddRI8; |
| 543 | } |
| 544 | break; |
| 545 | case kOpSub: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 546 | if (!neg && (r_dest_src1 == r13sp) && (value <= 508)) { /* sp */ |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 547 | DCHECK_EQ((value & 0x3), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 548 | return NewLIR1(cu, kThumbSubSpI7, value >> 2); |
| 549 | } else if (short_form) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 550 | opcode = (neg) ? kThumbAddRI8 : kThumbSubRI8; |
| 551 | } |
| 552 | break; |
| 553 | case kOpCmp: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 554 | if (ARM_LOWREG(r_dest_src1) && short_form) |
| 555 | opcode = (short_form) ? kThumbCmpRI8 : kThumbCmpRR; |
| 556 | else if (ARM_LOWREG(r_dest_src1)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 557 | opcode = kThumbCmpRR; |
| 558 | else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 559 | short_form = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 560 | opcode = kThumbCmpHL; |
| 561 | } |
| 562 | break; |
| 563 | default: |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 564 | /* Punt to OpRegRegImm - if bad case catch it there */ |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 565 | short_form = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 566 | break; |
| 567 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 568 | if (short_form) |
| 569 | return NewLIR2(cu, opcode, r_dest_src1, abs_value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 570 | else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 571 | return OpRegRegImm(cu, op, r_dest_src1, r_dest_src1, value); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 572 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 573 | } |
| 574 | |
| 575 | /* |
| 576 | * Determine whether value can be encoded as a Thumb2 floating point |
| 577 | * immediate. If not, return -1. If so return encoded 8-bit value. |
| 578 | */ |
buzbee | aad9438 | 2012-11-21 07:40:50 -0800 | [diff] [blame] | 579 | static int EncodeImmDoubleHigh(int value) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 580 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 581 | int res; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 582 | int bit_a = (value & 0x80000000) >> 31; |
| 583 | int not_bit_b = (value & 0x40000000) >> 30; |
| 584 | int bit_b = (value & 0x20000000) >> 29; |
| 585 | int b_smear = (value & 0x3fc00000) >> 22; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 586 | int slice = (value & 0x003f0000) >> 16; |
| 587 | int zeroes = (value & 0x0000ffff); |
| 588 | if (zeroes != 0) |
| 589 | return -1; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 590 | if (bit_b) { |
| 591 | if ((not_bit_b != 0) || (b_smear != 0xff)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 592 | return -1; |
| 593 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 594 | if ((not_bit_b != 1) || (b_smear != 0x0)) |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 595 | return -1; |
| 596 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 597 | res = (bit_a << 7) | (bit_b << 6) | slice; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 598 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 599 | } |
| 600 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 601 | static int EncodeImmDouble(int val_lo, int val_hi) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 602 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 603 | int res = -1; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 604 | if (val_lo == 0) |
| 605 | res = EncodeImmDoubleHigh(val_hi); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 606 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 607 | } |
| 608 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 609 | LIR* ArmCodegen::LoadConstantValueWide(CompilationUnit* cu, int r_dest_lo, int r_dest_hi, |
| 610 | int val_lo, int val_hi) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 611 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 612 | LIR* res; |
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) |
| 619 | NewLIR2(cu, kThumb2Vmovd_IMM8, target_reg, 0); |
| 620 | // +0.0 = +2.0 - +2.0 |
| 621 | res = NewLIR3(cu, kThumb2Vsubd, target_reg, target_reg, target_reg); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 622 | } else { |
buzbee | 7da142f | 2012-11-29 16:33:42 -0800 | [diff] [blame^] | 623 | int encoded_imm = EncodeImmDouble(val_lo, val_hi); |
| 624 | if (encoded_imm >= 0) { |
| 625 | res = NewLIR2(cu, kThumb2Vmovd_IMM8, target_reg, encoded_imm); |
| 626 | } else { |
| 627 | LIR* data_target = ScanLiteralPoolWide(cu->literal_list, val_lo, val_hi); |
| 628 | if (data_target == NULL) { |
| 629 | data_target = AddWideData(cu, &cu->literal_list, val_lo, val_hi); |
| 630 | } |
| 631 | LIR* load_pc_rel = |
| 632 | RawLIR(cu, cu->current_dalvik_offset, kThumb2Vldrd, |
| 633 | target_reg, r15pc, 0, 0, 0, data_target); |
| 634 | SetMemRefType(cu, load_pc_rel, true, kLiteral); |
| 635 | load_pc_rel->alias_info = reinterpret_cast<uintptr_t>(data_target); |
| 636 | AppendLIR(cu, load_pc_rel); |
| 637 | res = load_pc_rel; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 638 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 639 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 640 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 641 | res = LoadConstantNoClobber(cu, r_dest_lo, val_lo); |
| 642 | LoadConstantNoClobber(cu, r_dest_hi, val_hi); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 643 | } |
| 644 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 645 | } |
| 646 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 647 | int ArmCodegen::EncodeShift(int code, int amount) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 648 | return ((amount & 0x1f) << 2) | code; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 649 | } |
| 650 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 651 | LIR* ArmCodegen::LoadBaseIndexed(CompilationUnit* cu, int rBase, int r_index, int r_dest, |
| 652 | int scale, OpSize size) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 653 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 654 | 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] | 655 | LIR* load; |
| 656 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 657 | bool thumb_form = (all_low_regs && (scale == 0)); |
| 658 | int reg_ptr; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 659 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 660 | if (ARM_FPREG(r_dest)) { |
| 661 | if (ARM_SINGLEREG(r_dest)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 662 | DCHECK((size == kWord) || (size == kSingle)); |
| 663 | opcode = kThumb2Vldrs; |
| 664 | size = kSingle; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 665 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 666 | DCHECK(ARM_DOUBLEREG(r_dest)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 667 | DCHECK((size == kLong) || (size == kDouble)); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 668 | DCHECK_EQ((r_dest & 0x1), 0); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 669 | opcode = kThumb2Vldrd; |
| 670 | size = kDouble; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 671 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 672 | } else { |
| 673 | if (size == kSingle) |
| 674 | size = kWord; |
| 675 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 676 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 677 | switch (size) { |
| 678 | case kDouble: // fall-through |
| 679 | case kSingle: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 680 | reg_ptr = AllocTemp(cu); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 681 | if (scale) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 682 | NewLIR4(cu, kThumb2AddRRR, reg_ptr, rBase, r_index, |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 683 | EncodeShift(kArmLsl, scale)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 684 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 685 | OpRegRegReg(cu, kOpAdd, reg_ptr, rBase, r_index); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 686 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 687 | load = NewLIR3(cu, opcode, r_dest, reg_ptr, 0); |
| 688 | FreeTemp(cu, reg_ptr); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 689 | return load; |
| 690 | case kWord: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 691 | opcode = (thumb_form) ? kThumbLdrRRR : kThumb2LdrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 692 | break; |
| 693 | case kUnsignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 694 | opcode = (thumb_form) ? kThumbLdrhRRR : kThumb2LdrhRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 695 | break; |
| 696 | case kSignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 697 | opcode = (thumb_form) ? kThumbLdrshRRR : kThumb2LdrshRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 698 | break; |
| 699 | case kUnsignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 700 | opcode = (thumb_form) ? kThumbLdrbRRR : kThumb2LdrbRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 701 | break; |
| 702 | case kSignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 703 | opcode = (thumb_form) ? kThumbLdrsbRRR : kThumb2LdrsbRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 704 | break; |
| 705 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 706 | LOG(FATAL) << "Bad size: " << size; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 707 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 708 | if (thumb_form) |
| 709 | load = NewLIR3(cu, opcode, r_dest, rBase, r_index); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 710 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 711 | load = NewLIR4(cu, opcode, r_dest, rBase, r_index, scale); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 712 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 713 | return load; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 714 | } |
| 715 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 716 | LIR* ArmCodegen::StoreBaseIndexed(CompilationUnit* cu, int rBase, int r_index, int r_src, |
| 717 | int scale, OpSize size) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 718 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 719 | bool all_low_regs = ARM_LOWREG(rBase) && ARM_LOWREG(r_index) && ARM_LOWREG(r_src); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 720 | LIR* store; |
| 721 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 722 | bool thumb_form = (all_low_regs && (scale == 0)); |
| 723 | int reg_ptr; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 724 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 725 | if (ARM_FPREG(r_src)) { |
| 726 | if (ARM_SINGLEREG(r_src)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 727 | DCHECK((size == kWord) || (size == kSingle)); |
| 728 | opcode = kThumb2Vstrs; |
| 729 | size = kSingle; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 730 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 731 | DCHECK(ARM_DOUBLEREG(r_src)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 732 | DCHECK((size == kLong) || (size == kDouble)); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 733 | DCHECK_EQ((r_src & 0x1), 0); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 734 | opcode = kThumb2Vstrd; |
| 735 | size = kDouble; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 736 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 737 | } else { |
| 738 | if (size == kSingle) |
| 739 | size = kWord; |
| 740 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 741 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 742 | switch (size) { |
| 743 | case kDouble: // fall-through |
| 744 | case kSingle: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 745 | reg_ptr = AllocTemp(cu); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 746 | if (scale) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 747 | NewLIR4(cu, kThumb2AddRRR, reg_ptr, rBase, r_index, |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 748 | EncodeShift(kArmLsl, scale)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 749 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 750 | OpRegRegReg(cu, kOpAdd, reg_ptr, rBase, r_index); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 751 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 752 | store = NewLIR3(cu, opcode, r_src, reg_ptr, 0); |
| 753 | FreeTemp(cu, reg_ptr); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 754 | return store; |
| 755 | case kWord: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 756 | opcode = (thumb_form) ? kThumbStrRRR : kThumb2StrRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 757 | break; |
| 758 | case kUnsignedHalf: |
| 759 | case kSignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 760 | opcode = (thumb_form) ? kThumbStrhRRR : kThumb2StrhRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 761 | break; |
| 762 | case kUnsignedByte: |
| 763 | case kSignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 764 | opcode = (thumb_form) ? kThumbStrbRRR : kThumb2StrbRRR; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 765 | break; |
| 766 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 767 | LOG(FATAL) << "Bad size: " << size; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 768 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 769 | if (thumb_form) |
| 770 | store = NewLIR3(cu, opcode, r_src, rBase, r_index); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 771 | else |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 772 | store = NewLIR4(cu, opcode, r_src, rBase, r_index, scale); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 773 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 774 | return store; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 775 | } |
| 776 | |
| 777 | /* |
| 778 | * Load value from base + displacement. Optionally perform null check |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 779 | * on base (which must have an associated s_reg and MIR). If not |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 780 | * performing null check, incoming MIR can be null. |
| 781 | */ |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 782 | LIR* ArmCodegen::LoadBaseDispBody(CompilationUnit* cu, int rBase, int displacement, int r_dest, |
| 783 | int r_dest_hi, OpSize size, int s_reg) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 784 | { |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 785 | Codegen* cg = cu->cg.get(); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 786 | LIR* res; |
| 787 | LIR* load; |
| 788 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 789 | bool short_form = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 790 | bool thumb2Form = (displacement < 4092 && displacement >= 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 791 | bool all_low_regs = (ARM_LOWREG(rBase) && ARM_LOWREG(r_dest)); |
| 792 | int encoded_disp = displacement; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 793 | bool is64bit = false; |
| 794 | switch (size) { |
| 795 | case kDouble: |
| 796 | case kLong: |
| 797 | is64bit = true; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 798 | if (ARM_FPREG(r_dest)) { |
| 799 | if (ARM_SINGLEREG(r_dest)) { |
| 800 | DCHECK(ARM_FPREG(r_dest_hi)); |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 801 | r_dest = cg->S2d(r_dest, r_dest_hi); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 802 | } |
| 803 | opcode = kThumb2Vldrd; |
| 804 | if (displacement <= 1020) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 805 | short_form = true; |
| 806 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 807 | } |
| 808 | break; |
| 809 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 810 | res = LoadBaseDispBody(cu, rBase, displacement, r_dest, |
| 811 | -1, kWord, s_reg); |
| 812 | LoadBaseDispBody(cu, rBase, displacement + 4, r_dest_hi, |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 813 | -1, kWord, INVALID_SREG); |
| 814 | return res; |
| 815 | } |
| 816 | case kSingle: |
| 817 | case kWord: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 818 | if (ARM_FPREG(r_dest)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 819 | opcode = kThumb2Vldrs; |
| 820 | if (displacement <= 1020) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 821 | short_form = true; |
| 822 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 823 | } |
| 824 | break; |
| 825 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 826 | if (ARM_LOWREG(r_dest) && (rBase == r15pc) && |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 827 | (displacement <= 1020) && (displacement >= 0)) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 828 | short_form = true; |
| 829 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 830 | opcode = kThumbLdrPcRel; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 831 | } else if (ARM_LOWREG(r_dest) && (rBase == r13sp) && |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 832 | (displacement <= 1020) && (displacement >= 0)) { |
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 | opcode = kThumbLdrSpRel; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 836 | } else if (all_low_regs && displacement < 128 && displacement >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 837 | DCHECK_EQ((displacement & 0x3), 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 = kThumbLdrRRI5; |
| 841 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 842 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 843 | opcode = kThumb2LdrRRI12; |
| 844 | } |
| 845 | break; |
| 846 | case kUnsignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 847 | if (all_low_regs && displacement < 64 && displacement >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 848 | DCHECK_EQ((displacement & 0x1), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 849 | short_form = true; |
| 850 | encoded_disp >>= 1; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 851 | opcode = kThumbLdrhRRI5; |
| 852 | } else if (displacement < 4092 && displacement >= 0) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 853 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 854 | opcode = kThumb2LdrhRRI12; |
| 855 | } |
| 856 | break; |
| 857 | case kSignedHalf: |
| 858 | if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 859 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 860 | opcode = kThumb2LdrshRRI12; |
| 861 | } |
| 862 | break; |
| 863 | case kUnsignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 864 | if (all_low_regs && displacement < 32 && displacement >= 0) { |
| 865 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 866 | opcode = kThumbLdrbRRI5; |
| 867 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 868 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 869 | opcode = kThumb2LdrbRRI12; |
| 870 | } |
| 871 | break; |
| 872 | case kSignedByte: |
| 873 | if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 874 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 875 | opcode = kThumb2LdrsbRRI12; |
| 876 | } |
| 877 | break; |
| 878 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 879 | LOG(FATAL) << "Bad size: " << size; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 880 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 881 | |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 882 | if (short_form) { |
| 883 | load = res = NewLIR3(cu, opcode, r_dest, rBase, encoded_disp); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 884 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 885 | int reg_offset = AllocTemp(cu); |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 886 | res = cg->LoadConstant(cu, reg_offset, encoded_disp); |
| 887 | load = cg->LoadBaseIndexed(cu, rBase, reg_offset, r_dest, 0, size); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 888 | FreeTemp(cu, reg_offset); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 889 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 890 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 891 | // TODO: in future may need to differentiate Dalvik accesses w/ spills |
buzbee | f0504cd | 2012-11-13 16:31:10 -0800 | [diff] [blame] | 892 | if (rBase == rARM_SP) { |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 893 | AnnotateDalvikRegAccess(cu, load, displacement >> 2, true /* is_load */, is64bit); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 894 | } |
| 895 | return load; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 896 | } |
| 897 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 898 | LIR* ArmCodegen::LoadBaseDisp(CompilationUnit* cu, int rBase, int displacement, int r_dest, |
| 899 | OpSize size, int s_reg) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 900 | { |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 901 | return LoadBaseDispBody(cu, rBase, displacement, r_dest, -1, size, s_reg); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 902 | } |
| 903 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 904 | LIR* ArmCodegen::LoadBaseDispWide(CompilationUnit* cu, int rBase, int displacement, int r_dest_lo, |
| 905 | int r_dest_hi, int s_reg) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 906 | { |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 907 | 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] | 908 | } |
| 909 | |
| 910 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 911 | LIR* ArmCodegen::StoreBaseDispBody(CompilationUnit* cu, int rBase, int displacement, |
| 912 | int r_src, int r_src_hi, OpSize size) { |
| 913 | Codegen* cg = cu->cg.get(); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 914 | LIR* res, *store; |
| 915 | ArmOpcode opcode = kThumbBkpt; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 916 | bool short_form = false; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 917 | bool thumb2Form = (displacement < 4092 && displacement >= 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 918 | bool all_low_regs = (ARM_LOWREG(rBase) && ARM_LOWREG(r_src)); |
| 919 | int encoded_disp = displacement; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 920 | bool is64bit = false; |
| 921 | switch (size) { |
| 922 | case kLong: |
| 923 | case kDouble: |
| 924 | is64bit = true; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 925 | if (!ARM_FPREG(r_src)) { |
| 926 | res = StoreBaseDispBody(cu, rBase, displacement, r_src, -1, kWord); |
| 927 | StoreBaseDispBody(cu, rBase, displacement + 4, r_src_hi, -1, kWord); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 928 | return res; |
| 929 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 930 | if (ARM_SINGLEREG(r_src)) { |
| 931 | DCHECK(ARM_FPREG(r_src_hi)); |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 932 | r_src = cg->S2d(r_src, r_src_hi); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 933 | } |
| 934 | opcode = kThumb2Vstrd; |
| 935 | if (displacement <= 1020) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 936 | short_form = true; |
| 937 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 938 | } |
| 939 | break; |
| 940 | case kSingle: |
| 941 | case kWord: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 942 | if (ARM_FPREG(r_src)) { |
| 943 | DCHECK(ARM_SINGLEREG(r_src)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 944 | opcode = kThumb2Vstrs; |
| 945 | if (displacement <= 1020) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 946 | short_form = true; |
| 947 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 948 | } |
| 949 | break; |
| 950 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 951 | if (all_low_regs && displacement < 128 && displacement >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 952 | DCHECK_EQ((displacement & 0x3), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 953 | short_form = true; |
| 954 | encoded_disp >>= 2; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 955 | opcode = kThumbStrRRI5; |
| 956 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 957 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 958 | opcode = kThumb2StrRRI12; |
| 959 | } |
| 960 | break; |
| 961 | case kUnsignedHalf: |
| 962 | case kSignedHalf: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 963 | if (all_low_regs && displacement < 64 && displacement >= 0) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 964 | DCHECK_EQ((displacement & 0x1), 0); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 965 | short_form = true; |
| 966 | encoded_disp >>= 1; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 967 | opcode = kThumbStrhRRI5; |
| 968 | } else if (thumb2Form) { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 969 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 970 | opcode = kThumb2StrhRRI12; |
| 971 | } |
| 972 | break; |
| 973 | case kUnsignedByte: |
| 974 | case kSignedByte: |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 975 | if (all_low_regs && displacement < 32 && displacement >= 0) { |
| 976 | short_form = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 977 | opcode = kThumbStrbRRI5; |
| 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 = kThumb2StrbRRI12; |
| 981 | } |
| 982 | break; |
| 983 | default: |
buzbee | cbd6d44 | 2012-11-17 14:11:25 -0800 | [diff] [blame] | 984 | LOG(FATAL) << "Bad size: " << size; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 985 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 986 | if (short_form) { |
| 987 | store = res = NewLIR3(cu, opcode, r_src, rBase, encoded_disp); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 988 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 989 | int r_scratch = AllocTemp(cu); |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 990 | res = cg->LoadConstant(cu, r_scratch, encoded_disp); |
| 991 | store = cg->StoreBaseIndexed(cu, rBase, r_scratch, r_src, 0, size); |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 992 | FreeTemp(cu, r_scratch); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 993 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 994 | |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 995 | // TODO: In future, may need to differentiate Dalvik & spill accesses |
buzbee | f0504cd | 2012-11-13 16:31:10 -0800 | [diff] [blame] | 996 | if (rBase == rARM_SP) { |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 997 | AnnotateDalvikRegAccess(cu, store, displacement >> 2, false /* is_load */, is64bit); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 998 | } |
| 999 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1000 | } |
| 1001 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1002 | LIR* ArmCodegen::StoreBaseDisp(CompilationUnit* cu, int rBase, int displacement, int r_src, |
| 1003 | OpSize size) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1004 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1005 | return StoreBaseDispBody(cu, rBase, displacement, r_src, -1, size); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1006 | } |
| 1007 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1008 | LIR* ArmCodegen::StoreBaseDispWide(CompilationUnit* cu, int rBase, int displacement, |
| 1009 | int r_src_lo, int r_src_hi) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1010 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1011 | return StoreBaseDispBody(cu, rBase, displacement, r_src_lo, r_src_hi, kLong); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1012 | } |
| 1013 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1014 | void ArmCodegen::LoadPair(CompilationUnit* cu, int base, int low_reg, int high_reg) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1015 | { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1016 | LoadBaseDispWide(cu, base, 0, low_reg, high_reg, INVALID_SREG); |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1017 | } |
| 1018 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1019 | LIR* ArmCodegen::OpFpRegCopy(CompilationUnit* cu, int r_dest, int r_src) |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1020 | { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1021 | int opcode; |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1022 | DCHECK_EQ(ARM_DOUBLEREG(r_dest), ARM_DOUBLEREG(r_src)); |
| 1023 | if (ARM_DOUBLEREG(r_dest)) { |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1024 | opcode = kThumb2Vmovd; |
| 1025 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1026 | if (ARM_SINGLEREG(r_dest)) { |
| 1027 | opcode = ARM_SINGLEREG(r_src) ? kThumb2Vmovs : kThumb2Fmsr; |
buzbee | a2ebdd7 | 2012-03-04 14:57:06 -0800 | [diff] [blame] | 1028 | } else { |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1029 | DCHECK(ARM_SINGLEREG(r_src)); |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1030 | opcode = kThumb2Fmrs; |
buzbee | a2ebdd7 | 2012-03-04 14:57:06 -0800 | [diff] [blame] | 1031 | } |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1032 | } |
buzbee | fa57c47 | 2012-11-21 12:06:18 -0800 | [diff] [blame] | 1033 | LIR* res = RawLIR(cu, cu->current_dalvik_offset, opcode, r_dest, r_src); |
| 1034 | if (!(cu->disable_opt & (1 << kSafeOptimizations)) && r_dest == r_src) { |
| 1035 | res->flags.is_nop = true; |
Bill Buzbee | a114add | 2012-05-03 15:00:40 -0700 | [diff] [blame] | 1036 | } |
| 1037 | return res; |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1038 | } |
| 1039 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1040 | LIR* ArmCodegen::OpThreadMem(CompilationUnit* cu, OpKind op, int thread_offset) |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1041 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1042 | LOG(FATAL) << "Unexpected use of OpThreadMem for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1043 | return NULL; |
| 1044 | } |
buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame] | 1045 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1046 | LIR* ArmCodegen::OpMem(CompilationUnit* cu, OpKind op, int rBase, int disp) |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1047 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1048 | LOG(FATAL) << "Unexpected use of OpMem for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1049 | return NULL; |
| 1050 | } |
| 1051 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1052 | LIR* ArmCodegen::StoreBaseIndexedDisp(CompilationUnit *cu, int rBase, int r_index, int scale, |
| 1053 | int displacement, int r_src, int r_src_hi, OpSize size, |
| 1054 | int s_reg) |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1055 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1056 | LOG(FATAL) << "Unexpected use of StoreBaseIndexedDisp for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1057 | return NULL; |
| 1058 | } |
| 1059 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1060 | 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] | 1061 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1062 | LOG(FATAL) << "Unexpected use of OpRegMem for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1063 | return NULL; |
| 1064 | } |
| 1065 | |
buzbee | 02031b1 | 2012-11-23 09:41:35 -0800 | [diff] [blame] | 1066 | LIR* ArmCodegen::LoadBaseIndexedDisp(CompilationUnit *cu, int rBase, int r_index, int scale, |
| 1067 | int displacement, int r_dest, int r_dest_hi, OpSize size, |
| 1068 | int s_reg) |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1069 | { |
buzbee | 52a77fc | 2012-11-20 19:50:46 -0800 | [diff] [blame] | 1070 | LOG(FATAL) << "Unexpected use of LoadBaseIndexedDisp for Arm"; |
buzbee | b046e16 | 2012-10-30 15:48:42 -0700 | [diff] [blame] | 1071 | return NULL; |
| 1072 | } |
Elliott Hughes | 11d1b0c | 2012-01-23 16:57:47 -0800 | [diff] [blame] | 1073 | |
| 1074 | } // namespace art |