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