167bf885d62b1473c833bece1c9e0bb624e6ba391buzbee/* 267bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * Copyright (C) 2011 The Android Open Source Project 367bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * 467bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * Licensed under the Apache License, Version 2.0 (the "License"); 567bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * you may not use this file except in compliance with the License. 667bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * You may obtain a copy of the License at 767bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * 867bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * http://www.apache.org/licenses/LICENSE-2.0 967bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * 1067bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * Unless required by applicable law or agreed to in writing, software 1167bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * distributed under the License is distributed on an "AS IS" BASIS, 1267bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1367bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * See the License for the specific language governing permissions and 1467bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * limitations under the License. 1567bf885d62b1473c833bece1c9e0bb624e6ba391buzbee */ 1667bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 1702031b185b4653e6c72e21f7a51238b903f6d638buzbee#include "codegen_arm.h" 18d582fa4ea62083a7598dded5b82dc2198b3daac7Ian Rogers 19d582fa4ea62083a7598dded5b82dc2198b3daac7Ian Rogers#include "arch/arm/instruction_set_features_arm.h" 20d582fa4ea62083a7598dded5b82dc2198b3daac7Ian Rogers#include "arm_lir.h" 210b9203e7996ee1856f620f95d95d8a273c43a3dfAndreas Gampe#include "base/logging.h" 22cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko#include "dex/mir_graph.h" 237940e44f4517de5e2634a7e07d58d0fb26160513Brian Carlstrom#include "dex/quick/mir_to_lir-inl.h" 24b5860fb459f1ed71f39d8a87b45bee6727d79fe8buzbee#include "dex/reg_storage_eq.h" 250b9203e7996ee1856f620f95d95d8a273c43a3dfAndreas Gampe#include "driver/compiler_driver.h" 261bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee 2711d1b0c31ddd710d26068da8e0e4621002205b4bElliott Hughesnamespace art { 2811d1b0c31ddd710d26068da8e0e4621002205b4bElliott Hughes 29b046e16d8b8da318d6055f9308950131f1255e08buzbee/* This file contains codegen for the Thumb ISA. */ 3067bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 310d82948094d9a198e01aa95f64012bdedd5b6fc9buzbeestatic int32_t EncodeImmSingle(int32_t value) { 320d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee int32_t res; 330d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee int32_t bit_a = (value & 0x80000000) >> 31; 340d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee int32_t not_bit_b = (value & 0x40000000) >> 30; 350d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee int32_t bit_b = (value & 0x20000000) >> 29; 360d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee int32_t b_smear = (value & 0x3e000000) >> 25; 370d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee int32_t slice = (value & 0x01f80000) >> 19; 380d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee int32_t zeroes = (value & 0x0007ffff); 39a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee if (zeroes != 0) 40a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return -1; 41fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (bit_b) { 42fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if ((not_bit_b != 0) || (b_smear != 0x1f)) 43a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return -1; 44a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } else { 45fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if ((not_bit_b != 1) || (b_smear != 0x0)) 46a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return -1; 47a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 48fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee res = (bit_a << 7) | (bit_b << 6) | slice; 49a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return res; 5067bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 5167bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 524ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee/* 534ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * Determine whether value can be encoded as a Thumb2 floating point 544ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * immediate. If not, return -1. If so return encoded 8-bit value. 554ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee */ 560d82948094d9a198e01aa95f64012bdedd5b6fc9buzbeestatic int32_t EncodeImmDouble(int64_t value) { 570d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee int32_t res; 580f6784737882199197796b67b99e5f1ded383beeIan Rogers int32_t bit_a = (value & INT64_C(0x8000000000000000)) >> 63; 590f6784737882199197796b67b99e5f1ded383beeIan Rogers int32_t not_bit_b = (value & INT64_C(0x4000000000000000)) >> 62; 600f6784737882199197796b67b99e5f1ded383beeIan Rogers int32_t bit_b = (value & INT64_C(0x2000000000000000)) >> 61; 610f6784737882199197796b67b99e5f1ded383beeIan Rogers int32_t b_smear = (value & INT64_C(0x3fc0000000000000)) >> 54; 620f6784737882199197796b67b99e5f1ded383beeIan Rogers int32_t slice = (value & INT64_C(0x003f000000000000)) >> 48; 630f6784737882199197796b67b99e5f1ded383beeIan Rogers uint64_t zeroes = (value & INT64_C(0x0000ffffffffffff)); 640d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee if (zeroes != 0ull) 654ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee return -1; 664ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (bit_b) { 674ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if ((not_bit_b != 0) || (b_smear != 0xff)) 684ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee return -1; 694ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 704ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if ((not_bit_b != 1) || (b_smear != 0x0)) 714ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee return -1; 724ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 734ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee res = (bit_a << 7) | (bit_b << 6) | slice; 744ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee return res; 754ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 764ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 772ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromLIR* ArmMir2Lir::LoadFPConstantValue(int r_dest, int value) { 78091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee DCHECK(RegStorage::IsSingle(r_dest)); 797da142fc1cefeeb24d997ae21b34381fdd2c0466buzbee if (value == 0) { 807da142fc1cefeeb24d997ae21b34381fdd2c0466buzbee // TODO: we need better info about the target CPU. a vector exclusive or 817da142fc1cefeeb24d997ae21b34381fdd2c0466buzbee // would probably be better here if we could rely on its existance. 827da142fc1cefeeb24d997ae21b34381fdd2c0466buzbee // Load an immediate +2.0 (which encodes to 0) 831fd3346740dfb7f47be9922312b68a4227fada96buzbee NewLIR2(kThumb2Vmovs_IMM8, r_dest, 0); 847da142fc1cefeeb24d997ae21b34381fdd2c0466buzbee // +0.0 = +2.0 - +2.0 851fd3346740dfb7f47be9922312b68a4227fada96buzbee return NewLIR3(kThumb2Vsubs, r_dest, r_dest, r_dest); 867da142fc1cefeeb24d997ae21b34381fdd2c0466buzbee } else { 877da142fc1cefeeb24d997ae21b34381fdd2c0466buzbee int encoded_imm = EncodeImmSingle(value); 887da142fc1cefeeb24d997ae21b34381fdd2c0466buzbee if (encoded_imm >= 0) { 891fd3346740dfb7f47be9922312b68a4227fada96buzbee return NewLIR2(kThumb2Vmovs_IMM8, r_dest, encoded_imm); 907da142fc1cefeeb24d997ae21b34381fdd2c0466buzbee } 91a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 921fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* data_target = ScanLiteralPool(literal_list_, value, 0); 932cebb24bfc3247d3e9be138a3350106737455918Mathieu Chartier if (data_target == nullptr) { 941fd3346740dfb7f47be9922312b68a4227fada96buzbee data_target = AddWordData(&literal_list_, value); 95a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 968dea81ca9c0201ceaa88086b927a5838a06a3e69Vladimir Marko ScopedMemRefType mem_ref_type(this, ResourceMask::kLiteral); 971fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* load_pc_rel = RawLIR(current_dalvik_offset_, kThumb2Vldrs, 98091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee r_dest, rs_r15pc.GetReg(), 0, 0, 0, data_target); 991fd3346740dfb7f47be9922312b68a4227fada96buzbee AppendLIR(load_pc_rel); 100fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee return load_pc_rel; 10167bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 10267bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 10367bf885d62b1473c833bece1c9e0bb624e6ba391buzbee/* 10467bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * Determine whether value can be encoded as a Thumb2 modified 10567bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * immediate. If not, return -1. If so, return i:imm3:a:bcdefgh form. 10667bf885d62b1473c833bece1c9e0bb624e6ba391buzbee */ 1072ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromint ArmMir2Lir::ModifiedImmediate(uint32_t value) { 1086f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom uint32_t b0 = value & 0xff; 10967bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 1106f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom /* Note: case of value==0 must use 0:000:0:0000000 encoding */ 1116f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom if (value <= 0xFF) 1126f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom return b0; // 0:000:a:bcdefgh 1136f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom if (value == ((b0 << 16) | b0)) 1146f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom return (0x1 << 8) | b0; /* 0:001:a:bcdefgh */ 1156f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom if (value == ((b0 << 24) | (b0 << 16) | (b0 << 8) | b0)) 1166f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom return (0x3 << 8) | b0; /* 0:011:a:bcdefgh */ 1176f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom b0 = (value >> 8) & 0xff; 1186f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom if (value == ((b0 << 24) | (b0 << 8))) 1196f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom return (0x2 << 8) | b0; /* 0:010:a:bcdefgh */ 1206f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom /* Can we do it with rotation? */ 121a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko int z_leading = CLZ(value); 122a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko int z_trailing = CTZ(value); 1236f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom /* A run of eight or fewer active bits? */ 1246f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom if ((z_leading + z_trailing) < 24) 1256f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom return -1; /* No - bail */ 1266f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom /* left-justify the constant, discarding msb (known to be 1) */ 1276f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom value <<= z_leading + 1; 1286f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom /* Create bcdefgh */ 1296f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom value >>= 25; 1306f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom /* Put it all together */ 1316f485c62b9cfce3ab71020c646ab9f48d9d29d6dBrian Carlstrom return value | ((0x8 + z_leading) << 7); /* [01000..11111]:bcdefgh */ 13267bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 13367bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 1342ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrombool ArmMir2Lir::InexpensiveConstantInt(int32_t value) { 1354ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee return (ModifiedImmediate(value) >= 0) || (ModifiedImmediate(~value) >= 0); 1364ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 1374ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 138a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Markobool ArmMir2Lir::InexpensiveConstantInt(int32_t value, Instruction::Code opcode) { 139a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko switch (opcode) { 140a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::ADD_INT: 141a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::ADD_INT_2ADDR: 142a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::SUB_INT: 143a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::SUB_INT_2ADDR: 144a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko if ((value >> 12) == (value >> 31)) { // Signed 12-bit, RRI12 versions of ADD/SUB. 145a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko return true; 146a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko } 147a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko FALLTHROUGH_INTENDED; 148a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::IF_EQ: 149a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::IF_NE: 150a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::IF_LT: 151a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::IF_GE: 152a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::IF_GT: 153a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::IF_LE: 154a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko return (ModifiedImmediate(value) >= 0) || (ModifiedImmediate(-value) >= 0); 155a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::SHL_INT: 156a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::SHL_INT_2ADDR: 157a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::SHR_INT: 158a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::SHR_INT_2ADDR: 159a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::USHR_INT: 160a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::USHR_INT_2ADDR: 161a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko return true; 162aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko case Instruction::CONST: 163aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko case Instruction::CONST_4: 164aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko case Instruction::CONST_16: 165aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko if ((value >> 16) == 0) { 166aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko return true; // movw, 16-bit unsigned. 167aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko } 168aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko FALLTHROUGH_INTENDED; 169a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::AND_INT: 170a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::AND_INT_2ADDR: 171a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::AND_INT_LIT16: 172a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::AND_INT_LIT8: 173a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::OR_INT: 174a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::OR_INT_2ADDR: 175a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::OR_INT_LIT16: 176a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::OR_INT_LIT8: 177a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko return (ModifiedImmediate(value) >= 0) || (ModifiedImmediate(~value) >= 0); 178a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::XOR_INT: 179a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::XOR_INT_2ADDR: 180a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::XOR_INT_LIT16: 181a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::XOR_INT_LIT8: 182a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko return (ModifiedImmediate(value) >= 0); 183a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::MUL_INT: 184a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::MUL_INT_2ADDR: 185a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::MUL_INT_LIT8: 186a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::MUL_INT_LIT16: 187a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::DIV_INT: 188a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::DIV_INT_2ADDR: 189a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::DIV_INT_LIT8: 190a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::DIV_INT_LIT16: 191a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::REM_INT: 192a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::REM_INT_2ADDR: 193a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::REM_INT_LIT8: 194a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko case Instruction::REM_INT_LIT16: { 195a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko EasyMultiplyOp ops[2]; 196a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko return GetEasyMultiplyTwoOps(value, ops); 197a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko } 198a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko default: 199a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko return false; 200a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko } 201a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko} 202a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko 2032ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrombool ArmMir2Lir::InexpensiveConstantFloat(int32_t value) { 2044ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee return EncodeImmSingle(value) >= 0; 2054ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 2064ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 2072ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrombool ArmMir2Lir::InexpensiveConstantLong(int64_t value) { 2084ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee return InexpensiveConstantInt(High32Bits(value)) && InexpensiveConstantInt(Low32Bits(value)); 2094ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 2104ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 2112ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrombool ArmMir2Lir::InexpensiveConstantDouble(int64_t value) { 2124ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee return EncodeImmDouble(value) >= 0; 213e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee} 214e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 21567bf885d62b1473c833bece1c9e0bb624e6ba391buzbee/* 21667bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * Load a immediate using a shortcut if possible; otherwise 21767bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * grab from the per-translation literal pool. 21867bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * 21967bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * No additional register clobbering operation performed. Use this version when 220fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee * 1) r_dest is freshly returned from AllocTemp or 22167bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * 2) The codegen is under fixed register usage 22267bf885d62b1473c833bece1c9e0bb624e6ba391buzbee */ 2232700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::LoadConstantNoClobber(RegStorage r_dest, int value) { 224a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LIR* res; 225fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int mod_imm; 22667bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 227091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_dest.IsFloat()) { 2282700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return LoadFPConstantValue(r_dest.GetReg(), value); 229a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 23067bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 231a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee /* See if the value can be constructed cheaply */ 232091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_dest.Low8() && (value >= 0) && (value <= 255)) { 2332700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR2(kThumbMovImm, r_dest.GetReg(), value); 234a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 235a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee /* Check Modified immediate special cases */ 236fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee mod_imm = ModifiedImmediate(value); 237fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (mod_imm >= 0) { 2382700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res = NewLIR2(kThumb2MovI8M, r_dest.GetReg(), mod_imm); 23967bf885d62b1473c833bece1c9e0bb624e6ba391buzbee return res; 240a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 241fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee mod_imm = ModifiedImmediate(~value); 242fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (mod_imm >= 0) { 2432700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res = NewLIR2(kThumb2MvnI8M, r_dest.GetReg(), mod_imm); 244a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return res; 245a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 246a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee /* 16-bit immediate? */ 247a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee if ((value & 0xffff) == value) { 2482700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res = NewLIR2(kThumb2MovImm16, r_dest.GetReg(), value); 249a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return res; 250a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 2514ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee /* Do a low/high pair */ 2522700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res = NewLIR2(kThumb2MovImm16, r_dest.GetReg(), Low16Bits(value)); 2532700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR2(kThumb2MovImm16H, r_dest.GetReg(), High16Bits(value)); 254a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return res; 25567bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 25667bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 2572ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromLIR* ArmMir2Lir::OpUnconditionalBranch(LIR* target) { 258091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee LIR* res = NewLIR1(kThumbBUncond, 0 /* offset to be patched during assembly */); 25902031b185b4653e6c72e21f7a51238b903f6d638buzbee res->target = target; 26002031b185b4653e6c72e21f7a51238b903f6d638buzbee return res; 26167bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 26267bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 2632ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromLIR* ArmMir2Lir::OpCondBranch(ConditionCode cc, LIR* target) { 264174636dad59068fc6e879b147ae02ac932f38c6fVladimir Marko LIR* branch = NewLIR2(kThumbBCond, 0 /* offset to be patched */, 26552a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee ArmConditionEncoding(cc)); 266a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee branch->target = target; 267a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return branch; 26867bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 26967bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 2702700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpReg(OpKind op, RegStorage r_dest_src) { 271a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee ArmOpcode opcode = kThumbBkpt; 272a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee switch (op) { 273a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpBlx: 274a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumbBlxR; 275a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 27660d7a65f7fb60f502160a2e479e86014c7787553Brian Carlstrom case kOpBx: 27760d7a65f7fb60f502160a2e479e86014c7787553Brian Carlstrom opcode = kThumbBx; 27860d7a65f7fb60f502160a2e479e86014c7787553Brian Carlstrom break; 279a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee default: 280cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(FATAL) << "Bad opcode " << op; 281a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 2822700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR1(opcode, r_dest_src.GetReg()); 28367bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 28467bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 285e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian RogersLIR* ArmMir2Lir::OpRegRegShift(OpKind op, RegStorage r_dest_src1, RegStorage r_src2, 2862ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom int shift) { 287e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers bool thumb_form = 288091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee ((shift == 0) && r_dest_src1.Low8() && r_src2.Low8()); 289a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee ArmOpcode opcode = kThumbBkpt; 290a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee switch (op) { 291a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpAdc: 292fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbAdcRR : kThumb2AdcRRR; 293a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 294a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpAnd: 295fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbAndRR : kThumb2AndRRR; 296a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 297a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpBic: 298fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbBicRR : kThumb2BicRRR; 299a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 300a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpCmn: 301a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK_EQ(shift, 0); 302fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbCmnRR : kThumb2CmnRR; 303a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 304a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpCmp: 305fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (thumb_form) 306a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumbCmpRR; 307091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee else if ((shift == 0) && !r_dest_src1.Low8() && !r_src2.Low8()) 308a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumbCmpHH; 309091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee else if ((shift == 0) && r_dest_src1.Low8()) 310a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumbCmpLH; 311a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee else if (shift == 0) 312a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumbCmpHL; 313a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee else 314a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2CmpRR; 315a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 316a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpXor: 317fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbEorRR : kThumb2EorRRR; 318a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 319a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpMov: 320a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK_EQ(shift, 0); 321091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_dest_src1.Low8() && r_src2.Low8()) 322a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumbMovRR; 323091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee else if (!r_dest_src1.Low8() && !r_src2.Low8()) 324a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumbMovRR_H2H; 325091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee else if (r_dest_src1.Low8()) 326a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumbMovRR_H2L; 327a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee else 328a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumbMovRR_L2H; 329a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 330a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpMul: 331a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK_EQ(shift, 0); 332fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbMul : kThumb2MulRRR; 333a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 334a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpMvn: 335fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbMvn : kThumb2MnvRR; 336a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 337a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpNeg: 338a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK_EQ(shift, 0); 339fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbNeg : kThumb2NegRR; 340a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 341a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpOr: 342fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbOrr : kThumb2OrrRRR; 343a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 344a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpSbc: 345fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbSbc : kThumb2SbcRRR; 346a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 347a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpTst: 348fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbTst : kThumb2TstRR; 349a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 350a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpLsl: 351a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK_EQ(shift, 0); 352fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbLslRR : kThumb2LslRRR; 353a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 354a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpLsr: 355a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK_EQ(shift, 0); 356fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbLsrRR : kThumb2LsrRRR; 357a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 358a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpAsr: 359a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK_EQ(shift, 0); 360fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbAsrRR : kThumb2AsrRRR; 361a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 362a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpRor: 363a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK_EQ(shift, 0); 364fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbRorRR : kThumb2RorRRR; 365a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 366a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpAdd: 367fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbAddRRR : kThumb2AddRRR; 368a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 369a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpSub: 370fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbSubRRR : kThumb2SubRRR; 371a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 372a8b4caf7526b6b66a8ae0826bd52c39c66e3c714Vladimir Marko case kOpRev: 373a8b4caf7526b6b66a8ae0826bd52c39c66e3c714Vladimir Marko DCHECK_EQ(shift, 0); 374a8b4caf7526b6b66a8ae0826bd52c39c66e3c714Vladimir Marko if (!thumb_form) { 375a8b4caf7526b6b66a8ae0826bd52c39c66e3c714Vladimir Marko // Binary, but rm is encoded twice. 376e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return NewLIR3(kThumb2RevRR, r_dest_src1.GetReg(), r_src2.GetReg(), r_src2.GetReg()); 377a8b4caf7526b6b66a8ae0826bd52c39c66e3c714Vladimir Marko } 378a8b4caf7526b6b66a8ae0826bd52c39c66e3c714Vladimir Marko opcode = kThumbRev; 379a8b4caf7526b6b66a8ae0826bd52c39c66e3c714Vladimir Marko break; 380a8b4caf7526b6b66a8ae0826bd52c39c66e3c714Vladimir Marko case kOpRevsh: 381a8b4caf7526b6b66a8ae0826bd52c39c66e3c714Vladimir Marko DCHECK_EQ(shift, 0); 382a8b4caf7526b6b66a8ae0826bd52c39c66e3c714Vladimir Marko if (!thumb_form) { 383a8b4caf7526b6b66a8ae0826bd52c39c66e3c714Vladimir Marko // Binary, but rm is encoded twice. 384e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return NewLIR3(kThumb2RevshRR, r_dest_src1.GetReg(), r_src2.GetReg(), r_src2.GetReg()); 385a8b4caf7526b6b66a8ae0826bd52c39c66e3c714Vladimir Marko } 386a8b4caf7526b6b66a8ae0826bd52c39c66e3c714Vladimir Marko opcode = kThumbRevsh; 387a8b4caf7526b6b66a8ae0826bd52c39c66e3c714Vladimir Marko break; 388a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOp2Byte: 389a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK_EQ(shift, 0); 390e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return NewLIR4(kThumb2Sbfx, r_dest_src1.GetReg(), r_src2.GetReg(), 0, 8); 391a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOp2Short: 392a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK_EQ(shift, 0); 393e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return NewLIR4(kThumb2Sbfx, r_dest_src1.GetReg(), r_src2.GetReg(), 0, 16); 394a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOp2Char: 395a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK_EQ(shift, 0); 396e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return NewLIR4(kThumb2Ubfx, r_dest_src1.GetReg(), r_src2.GetReg(), 0, 16); 397a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee default: 398cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(FATAL) << "Bad opcode: " << op; 399a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 400a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 401409fe94ad529d9334587be80b9f6a3d166805508buzbee DCHECK(!IsPseudoLirOp(opcode)); 4029b7085a4e7c40e7fa01932ea1647a4a33ac1c585Brian Carlstrom if (EncodingMap[opcode].flags & IS_BINARY_OP) { 403e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return NewLIR2(opcode, r_dest_src1.GetReg(), r_src2.GetReg()); 4049b7085a4e7c40e7fa01932ea1647a4a33ac1c585Brian Carlstrom } else if (EncodingMap[opcode].flags & IS_TERTIARY_OP) { 4059b7085a4e7c40e7fa01932ea1647a4a33ac1c585Brian Carlstrom if (EncodingMap[opcode].field_loc[2].kind == kFmtShift) { 406e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return NewLIR3(opcode, r_dest_src1.GetReg(), r_src2.GetReg(), shift); 4079b7085a4e7c40e7fa01932ea1647a4a33ac1c585Brian Carlstrom } else { 408e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return NewLIR3(opcode, r_dest_src1.GetReg(), r_dest_src1.GetReg(), r_src2.GetReg()); 4099b7085a4e7c40e7fa01932ea1647a4a33ac1c585Brian Carlstrom } 4109b7085a4e7c40e7fa01932ea1647a4a33ac1c585Brian Carlstrom } else if (EncodingMap[opcode].flags & IS_QUAD_OP) { 411e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return NewLIR4(opcode, r_dest_src1.GetReg(), r_dest_src1.GetReg(), r_src2.GetReg(), shift); 4129b7085a4e7c40e7fa01932ea1647a4a33ac1c585Brian Carlstrom } else { 413a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(FATAL) << "Unexpected encoding operand count"; 4142cebb24bfc3247d3e9be138a3350106737455918Mathieu Chartier return nullptr; 415a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 41667bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 41767bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 4182700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpRegReg(OpKind op, RegStorage r_dest_src1, RegStorage r_src2) { 419e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return OpRegRegShift(op, r_dest_src1, r_src2, 0); 42067bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 42167bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 4222700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpMovRegMem(RegStorage r_dest, RegStorage r_base, int offset, MoveType move_type) { 4236a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNUSED(r_dest, r_base, offset, move_type); 4242c498d1f28e62e81fbdb477ff93ca7454e7493d7Razvan A Lupusoru UNIMPLEMENTED(FATAL); 4256a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNREACHABLE(); 4262c498d1f28e62e81fbdb477ff93ca7454e7493d7Razvan A Lupusoru} 4272c498d1f28e62e81fbdb477ff93ca7454e7493d7Razvan A Lupusoru 4282700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpMovMemReg(RegStorage r_base, int offset, RegStorage r_src, MoveType move_type) { 4296a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNUSED(r_base, offset, r_src, move_type); 4302c498d1f28e62e81fbdb477ff93ca7454e7493d7Razvan A Lupusoru UNIMPLEMENTED(FATAL); 4316a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNREACHABLE(); 4322c498d1f28e62e81fbdb477ff93ca7454e7493d7Razvan A Lupusoru} 4332c498d1f28e62e81fbdb477ff93ca7454e7493d7Razvan A Lupusoru 4342700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpCondRegReg(OpKind op, ConditionCode cc, RegStorage r_dest, RegStorage r_src) { 4356a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNUSED(op, cc, r_dest, r_src); 436bd288c2c1206bc99fafebfb9120a83f13cf9723bRazvan A Lupusoru LOG(FATAL) << "Unexpected use of OpCondRegReg for Arm"; 4376a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNREACHABLE(); 438bd288c2c1206bc99fafebfb9120a83f13cf9723bRazvan A Lupusoru} 439bd288c2c1206bc99fafebfb9120a83f13cf9723bRazvan A Lupusoru 440e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian RogersLIR* ArmMir2Lir::OpRegRegRegShift(OpKind op, RegStorage r_dest, RegStorage r_src1, 441e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers RegStorage r_src2, int shift) { 442a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee ArmOpcode opcode = kThumbBkpt; 443091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee bool thumb_form = (shift == 0) && r_dest.Low8() && r_src1.Low8() && r_src2.Low8(); 444a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee switch (op) { 445a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpAdd: 446fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbAddRRR : kThumb2AddRRR; 447a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 448a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpSub: 449fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbSubRRR : kThumb2SubRRR; 450a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 451a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpRsub: 452a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2RsubRRR; 453a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 454a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpAdc: 455a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2AdcRRR; 456a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 457a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpAnd: 458a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2AndRRR; 459a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 460a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpBic: 461a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2BicRRR; 462a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 463a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpXor: 464a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2EorRRR; 465a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 466a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpMul: 467a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK_EQ(shift, 0); 468a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2MulRRR; 469a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 4707020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison case kOpDiv: 4717020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison DCHECK_EQ(shift, 0); 4727020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison opcode = kThumb2SdivRRR; 4737020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison break; 474a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpOr: 475a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2OrrRRR; 476a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 477a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpSbc: 478a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2SbcRRR; 479a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 480a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpLsl: 481a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK_EQ(shift, 0); 482a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2LslRRR; 483a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 484a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpLsr: 485a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK_EQ(shift, 0); 486a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2LsrRRR; 487a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 488a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpAsr: 489a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK_EQ(shift, 0); 490a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2AsrRRR; 491a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 492a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpRor: 493a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK_EQ(shift, 0); 494a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2RorRRR; 495a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 496a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee default: 497cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(FATAL) << "Bad opcode: " << op; 498a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 499a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 500409fe94ad529d9334587be80b9f6a3d166805508buzbee DCHECK(!IsPseudoLirOp(opcode)); 5019b7085a4e7c40e7fa01932ea1647a4a33ac1c585Brian Carlstrom if (EncodingMap[opcode].flags & IS_QUAD_OP) { 502e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return NewLIR4(opcode, r_dest.GetReg(), r_src1.GetReg(), r_src2.GetReg(), shift); 5039b7085a4e7c40e7fa01932ea1647a4a33ac1c585Brian Carlstrom } else { 504a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK(EncodingMap[opcode].flags & IS_TERTIARY_OP); 505e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return NewLIR3(opcode, r_dest.GetReg(), r_src1.GetReg(), r_src2.GetReg()); 506a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 50767bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 50867bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 5092700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpRegRegReg(OpKind op, RegStorage r_dest, RegStorage r_src1, RegStorage r_src2) { 510e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return OpRegRegRegShift(op, r_dest, r_src1, r_src2, 0); 51167bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 51267bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 5132700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpRegRegImm(OpKind op, RegStorage r_dest, RegStorage r_src1, int value) { 514a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee bool neg = (value < 0); 5150d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee int32_t abs_value = (neg) ? -value : value; 516a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee ArmOpcode opcode = kThumbBkpt; 517fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee ArmOpcode alt_opcode = kThumbBkpt; 518091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee bool all_low_regs = r_dest.Low8() && r_src1.Low8(); 5190d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee int32_t mod_imm = ModifiedImmediate(value); 52067bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 521a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee switch (op) { 522a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpLsl: 523fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (all_low_regs) 5242700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR3(kThumbLslRRI5, r_dest.GetReg(), r_src1.GetReg(), value); 525a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee else 5262700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR3(kThumb2LslRRI5, r_dest.GetReg(), r_src1.GetReg(), value); 527a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpLsr: 528fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (all_low_regs) 5292700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR3(kThumbLsrRRI5, r_dest.GetReg(), r_src1.GetReg(), value); 530a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee else 5312700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR3(kThumb2LsrRRI5, r_dest.GetReg(), r_src1.GetReg(), value); 532a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpAsr: 533fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (all_low_regs) 5342700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR3(kThumbAsrRRI5, r_dest.GetReg(), r_src1.GetReg(), value); 535a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee else 5362700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR3(kThumb2AsrRRI5, r_dest.GetReg(), r_src1.GetReg(), value); 537a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpRor: 5382700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR3(kThumb2RorRRI5, r_dest.GetReg(), r_src1.GetReg(), value); 539a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpAdd: 540091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_dest.Low8() && (r_src1 == rs_r13sp) && (value <= 1020) && ((value & 0x3) == 0)) { 5412700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR3(kThumbAddSpRel, r_dest.GetReg(), r_src1.GetReg(), value >> 2); 542091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee } else if (r_dest.Low8() && (r_src1 == rs_r15pc) && 54338f85e4892f6504971bde994fec81fd61780ac30Brian Carlstrom (value <= 1020) && ((value & 0x3) == 0)) { 5442700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR3(kThumbAddPcRel, r_dest.GetReg(), r_src1.GetReg(), value >> 2); 545a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 546fc787ecd91127b2c8458afd94e5148e2ae51a1f5Ian Rogers FALLTHROUGH_INTENDED; 547a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpSub: 548fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (all_low_regs && ((abs_value & 0x7) == abs_value)) { 549a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee if (op == kOpAdd) 550a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = (neg) ? kThumbSubRRI3 : kThumbAddRRI3; 55167bf885d62b1473c833bece1c9e0bb624e6ba391buzbee else 552a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = (neg) ? kThumbAddRRI3 : kThumbSubRRI3; 5532700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR3(opcode, r_dest.GetReg(), r_src1.GetReg(), abs_value); 554a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 555332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko if (mod_imm < 0) { 556332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko mod_imm = ModifiedImmediate(-value); 557332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko if (mod_imm >= 0) { 558332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko op = (op == kOpAdd) ? kOpSub : kOpAdd; 559332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko } 560a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 561a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko if (mod_imm < 0 && (abs_value >> 12) == 0) { 562dbb8c49d540edd2a39076093163c7218f03aa502Vladimir Marko // This is deliberately used only if modified immediate encoding is inadequate since 563dbb8c49d540edd2a39076093163c7218f03aa502Vladimir Marko // we sometimes actually use the flags for small values but not necessarily low regs. 564dbb8c49d540edd2a39076093163c7218f03aa502Vladimir Marko if (op == kOpAdd) 565dbb8c49d540edd2a39076093163c7218f03aa502Vladimir Marko opcode = (neg) ? kThumb2SubRRI12 : kThumb2AddRRI12; 566dbb8c49d540edd2a39076093163c7218f03aa502Vladimir Marko else 567dbb8c49d540edd2a39076093163c7218f03aa502Vladimir Marko opcode = (neg) ? kThumb2AddRRI12 : kThumb2SubRRI12; 5682700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR3(opcode, r_dest.GetReg(), r_src1.GetReg(), abs_value); 569dbb8c49d540edd2a39076093163c7218f03aa502Vladimir Marko } 570a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee if (op == kOpSub) { 571332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko opcode = kThumb2SubRRI8M; 572fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee alt_opcode = kThumb2SubRRR; 573a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } else { 574332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko opcode = kThumb2AddRRI8M; 575fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee alt_opcode = kThumb2AddRRR; 576a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 577a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 578c7d1f91e024c5c560810376340aecb39d4e47fdcbuzbee case kOpRsub: 579332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko opcode = kThumb2RsubRRI8M; 580c7d1f91e024c5c560810376340aecb39d4e47fdcbuzbee alt_opcode = kThumb2RsubRRR; 581c7d1f91e024c5c560810376340aecb39d4e47fdcbuzbee break; 582a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpAdc: 583332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko opcode = kThumb2AdcRRI8M; 584fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee alt_opcode = kThumb2AdcRRR; 585a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 586a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpSbc: 587332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko opcode = kThumb2SbcRRI8M; 588fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee alt_opcode = kThumb2SbcRRR; 589a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 590a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpOr: 591332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko opcode = kThumb2OrrRRI8M; 592fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee alt_opcode = kThumb2OrrRRR; 593a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko if (mod_imm < 0) { 594a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko mod_imm = ModifiedImmediate(~value); 595a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko if (mod_imm >= 0) { 596a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko opcode = kThumb2OrnRRI8M; 597a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko } 598a29f698b1754ee0ea2f46b6f5900e0da840dff79Vladimir Marko } 599a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 600a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpAnd: 601332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko if (mod_imm < 0) { 602332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko mod_imm = ModifiedImmediate(~value); 603332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko if (mod_imm >= 0) { 6042700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR3(kThumb2BicRRI8M, r_dest.GetReg(), r_src1.GetReg(), mod_imm); 605332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko } 606332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko } 607332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko opcode = kThumb2AndRRI8M; 608fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee alt_opcode = kThumb2AndRRR; 609a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 610a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpXor: 611332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko opcode = kThumb2EorRRI8M; 612fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee alt_opcode = kThumb2EorRRR; 613a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 614a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpMul: 6157934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom // TUNING: power of 2, shift & add 616fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee mod_imm = -1; 617fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee alt_opcode = kThumb2MulRRR; 618a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 619a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpCmp: { 620a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LIR* res; 621fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (mod_imm >= 0) { 6222700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res = NewLIR2(kThumb2CmpRI8M, r_src1.GetReg(), mod_imm); 623a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } else { 624332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko mod_imm = ModifiedImmediate(-value); 625332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko if (mod_imm >= 0) { 6262700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res = NewLIR2(kThumb2CmnRI8M, r_src1.GetReg(), mod_imm); 627332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko } else { 6282700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_tmp = AllocTemp(); 629332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko res = LoadConstant(r_tmp, value); 630332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko OpRegReg(kOpCmp, r_src1, r_tmp); 631332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko FreeTemp(r_tmp); 632332b7aa6220124dc638b9f7e59611c376473f128Vladimir Marko } 633a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 634a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return res; 63567bf885d62b1473c833bece1c9e0bb624e6ba391buzbee } 636a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee default: 637cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(FATAL) << "Bad opcode: " << op; 638a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 639a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee 640fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (mod_imm >= 0) { 6412700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR3(opcode, r_dest.GetReg(), r_src1.GetReg(), mod_imm); 642a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } else { 6432700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_scratch = AllocTemp(); 6441fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(r_scratch, value); 645277ccbd200ea43590dfc06a93ae184a765327ad0Andreas Gampe LIR* res; 646fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (EncodingMap[alt_opcode].flags & IS_QUAD_OP) 6472700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res = NewLIR4(alt_opcode, r_dest.GetReg(), r_src1.GetReg(), r_scratch.GetReg(), 0); 648a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee else 6492700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res = NewLIR3(alt_opcode, r_dest.GetReg(), r_src1.GetReg(), r_scratch.GetReg()); 6501fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(r_scratch); 651a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return res; 652a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 65367bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 65467bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 65552a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee/* Handle Thumb-only variants here - otherwise punt to OpRegRegImm */ 6562700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpRegImm(OpKind op, RegStorage r_dest_src1, int value) { 657a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee bool neg = (value < 0); 6580d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee int32_t abs_value = (neg) ? -value : value; 659091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee bool short_form = (((abs_value & 0xff) == abs_value) && r_dest_src1.Low8()); 660a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee ArmOpcode opcode = kThumbBkpt; 661a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee switch (op) { 662a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpAdd: 6632700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (!neg && (r_dest_src1 == rs_r13sp) && (value <= 508)) { /* sp */ 664a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK_EQ((value & 0x3), 0); 6651fd3346740dfb7f47be9922312b68a4227fada96buzbee return NewLIR1(kThumbAddSpI7, value >> 2); 666fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee } else if (short_form) { 667a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = (neg) ? kThumbSubRI8 : kThumbAddRI8; 668a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 669a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 670a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpSub: 6712700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (!neg && (r_dest_src1 == rs_r13sp) && (value <= 508)) { /* sp */ 672a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee DCHECK_EQ((value & 0x3), 0); 6731fd3346740dfb7f47be9922312b68a4227fada96buzbee return NewLIR1(kThumbSubSpI7, value >> 2); 674fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee } else if (short_form) { 675a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = (neg) ? kThumbAddRI8 : kThumbSubRI8; 676a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 677a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 678a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kOpCmp: 6792247984899247b1402408d39731ff64048f0e274Vladimir Marko if (!neg && short_form) { 6802247984899247b1402408d39731ff64048f0e274Vladimir Marko opcode = kThumbCmpRI8; 6819b7085a4e7c40e7fa01932ea1647a4a33ac1c585Brian Carlstrom } else { 682fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee short_form = false; 683a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 684a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 685a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee default: 68652a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee /* Punt to OpRegRegImm - if bad case catch it there */ 687fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee short_form = false; 688a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 689a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 6909b7085a4e7c40e7fa01932ea1647a4a33ac1c585Brian Carlstrom if (short_form) { 6912700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR2(opcode, r_dest_src1.GetReg(), abs_value); 6929b7085a4e7c40e7fa01932ea1647a4a33ac1c585Brian Carlstrom } else { 6931fd3346740dfb7f47be9922312b68a4227fada96buzbee return OpRegRegImm(op, r_dest_src1, r_dest_src1, value); 694a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 69567bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 69667bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 6972700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::LoadConstantWide(RegStorage r_dest, int64_t value) { 6982cebb24bfc3247d3e9be138a3350106737455918Mathieu Chartier LIR* res = nullptr; 6994ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int32_t val_lo = Low32Bits(value); 7004ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int32_t val_hi = High32Bits(value); 701091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_dest.IsFloat()) { 702091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee DCHECK(!r_dest.IsPair()); 7037da142fc1cefeeb24d997ae21b34381fdd2c0466buzbee if ((val_lo == 0) && (val_hi == 0)) { 7047da142fc1cefeeb24d997ae21b34381fdd2c0466buzbee // TODO: we need better info about the target CPU. a vector exclusive or 7057da142fc1cefeeb24d997ae21b34381fdd2c0466buzbee // would probably be better here if we could rely on its existance. 7067da142fc1cefeeb24d997ae21b34381fdd2c0466buzbee // Load an immediate +2.0 (which encodes to 0) 707091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee NewLIR2(kThumb2Vmovd_IMM8, r_dest.GetReg(), 0); 7087da142fc1cefeeb24d997ae21b34381fdd2c0466buzbee // +0.0 = +2.0 - +2.0 709091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee res = NewLIR3(kThumb2Vsubd, r_dest.GetReg(), r_dest.GetReg(), r_dest.GetReg()); 71067bf885d62b1473c833bece1c9e0bb624e6ba391buzbee } else { 7114ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int encoded_imm = EncodeImmDouble(value); 7127da142fc1cefeeb24d997ae21b34381fdd2c0466buzbee if (encoded_imm >= 0) { 713091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee res = NewLIR2(kThumb2Vmovd_IMM8, r_dest.GetReg(), encoded_imm); 714a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 71567bf885d62b1473c833bece1c9e0bb624e6ba391buzbee } 716a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } else { 717091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee // NOTE: Arm32 assumption here. 718091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee DCHECK(r_dest.IsPair()); 7194ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if ((InexpensiveConstantInt(val_lo) && (InexpensiveConstantInt(val_hi)))) { 7202700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res = LoadConstantNoClobber(r_dest.GetLow(), val_lo); 7212700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstantNoClobber(r_dest.GetHigh(), val_hi); 7224ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 7234ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 7242cebb24bfc3247d3e9be138a3350106737455918Mathieu Chartier if (res == nullptr) { 7254ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // No short form - load from the literal pool. 7261fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* data_target = ScanLiteralPoolWide(literal_list_, val_lo, val_hi); 7272cebb24bfc3247d3e9be138a3350106737455918Mathieu Chartier if (data_target == nullptr) { 7281fd3346740dfb7f47be9922312b68a4227fada96buzbee data_target = AddWideData(&literal_list_, val_lo, val_hi); 7294ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 7308dea81ca9c0201ceaa88086b927a5838a06a3e69Vladimir Marko ScopedMemRefType mem_ref_type(this, ResourceMask::kLiteral); 731091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_dest.IsFloat()) { 7321fd3346740dfb7f47be9922312b68a4227fada96buzbee res = RawLIR(current_dalvik_offset_, kThumb2Vldrd, 733091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee r_dest.GetReg(), rs_r15pc.GetReg(), 0, 0, 0, data_target); 7344ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 7352700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(r_dest.IsPair()); 7361fd3346740dfb7f47be9922312b68a4227fada96buzbee res = RawLIR(current_dalvik_offset_, kThumb2LdrdPcRel8, 737091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee r_dest.GetLowReg(), r_dest.GetHighReg(), rs_r15pc.GetReg(), 0, 0, data_target); 7384ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 7391fd3346740dfb7f47be9922312b68a4227fada96buzbee AppendLIR(res); 740a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 741a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return res; 74267bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 74367bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 7441fd3346740dfb7f47be9922312b68a4227fada96buzbeeint ArmMir2Lir::EncodeShift(int code, int amount) { 745a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return ((amount & 0x1f) << 2) | code; 74667bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 74767bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 7482700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::LoadBaseIndexed(RegStorage r_base, RegStorage r_index, RegStorage r_dest, 7492ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom int scale, OpSize size) { 750091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee bool all_low_regs = r_base.Low8() && r_index.Low8() && r_dest.Low8(); 751a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LIR* load; 752a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee ArmOpcode opcode = kThumbBkpt; 753fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee bool thumb_form = (all_low_regs && (scale == 0)); 7542700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_ptr; 75567bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 756091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_dest.IsFloat()) { 757091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_dest.IsSingle()) { 758fd698e67953e40e804d7c9d1a3e8460e9d67382abuzbee DCHECK((size == k32) || (size == kSingle) || (size == kReference)); 759a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2Vldrs; 760a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee size = kSingle; 76167bf885d62b1473c833bece1c9e0bb624e6ba391buzbee } else { 762091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee DCHECK(r_dest.IsDouble()); 763695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee DCHECK((size == k64) || (size == kDouble)); 764a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2Vldrd; 765a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee size = kDouble; 76667bf885d62b1473c833bece1c9e0bb624e6ba391buzbee } 767a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } else { 768a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee if (size == kSingle) 769695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee size = k32; 770a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 77167bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 772a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee switch (size) { 7737934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom case kDouble: // fall-through 774695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee // Intentional fall-though. 775a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kSingle: 7761fd3346740dfb7f47be9922312b68a4227fada96buzbee reg_ptr = AllocTemp(); 777a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee if (scale) { 7782700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2AddRRR, reg_ptr.GetReg(), r_base.GetReg(), r_index.GetReg(), 77952a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee EncodeShift(kArmLsl, scale)); 780a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } else { 7812700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpAdd, reg_ptr, r_base, r_index); 782a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 7832700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee load = NewLIR3(opcode, r_dest.GetReg(), reg_ptr.GetReg(), 0); 7841fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_ptr); 785a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return load; 786695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee case k32: 787695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee // Intentional fall-though. 788695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee case kReference: 789fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbLdrRRR : kThumb2LdrRRR; 790a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 791a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kUnsignedHalf: 792fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbLdrhRRR : kThumb2LdrhRRR; 793a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 794a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kSignedHalf: 795fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbLdrshRRR : kThumb2LdrshRRR; 796a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 797a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kUnsignedByte: 798fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbLdrbRRR : kThumb2LdrbRRR; 799a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 800a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kSignedByte: 801fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbLdrsbRRR : kThumb2LdrsbRRR; 802a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 803a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee default: 804cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(FATAL) << "Bad size: " << size; 805a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 806fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (thumb_form) 8072700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee load = NewLIR3(opcode, r_dest.GetReg(), r_base.GetReg(), r_index.GetReg()); 808a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee else 8092700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee load = NewLIR4(opcode, r_dest.GetReg(), r_base.GetReg(), r_index.GetReg(), scale); 81067bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 811a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return load; 81267bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 81367bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 8142700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::StoreBaseIndexed(RegStorage r_base, RegStorage r_index, RegStorage r_src, 8152ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom int scale, OpSize size) { 816091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee bool all_low_regs = r_base.Low8() && r_index.Low8() && r_src.Low8(); 8172cebb24bfc3247d3e9be138a3350106737455918Mathieu Chartier LIR* store = nullptr; 818a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee ArmOpcode opcode = kThumbBkpt; 819fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee bool thumb_form = (all_low_regs && (scale == 0)); 8202700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_ptr; 82167bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 822091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_src.IsFloat()) { 823091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_src.IsSingle()) { 824fd698e67953e40e804d7c9d1a3e8460e9d67382abuzbee DCHECK((size == k32) || (size == kSingle) || (size == kReference)); 825a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2Vstrs; 826a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee size = kSingle; 82767bf885d62b1473c833bece1c9e0bb624e6ba391buzbee } else { 828091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee DCHECK(r_src.IsDouble()); 829695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee DCHECK((size == k64) || (size == kDouble)); 8302700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK_EQ((r_src.GetReg() & 0x1), 0); 831a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2Vstrd; 832a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee size = kDouble; 83367bf885d62b1473c833bece1c9e0bb624e6ba391buzbee } 834a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } else { 835a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee if (size == kSingle) 836695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee size = k32; 837a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 83867bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 839a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee switch (size) { 8407934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom case kDouble: // fall-through 841695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee // Intentional fall-though. 842a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kSingle: 8431fd3346740dfb7f47be9922312b68a4227fada96buzbee reg_ptr = AllocTemp(); 844a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee if (scale) { 8452700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2AddRRR, reg_ptr.GetReg(), r_base.GetReg(), r_index.GetReg(), 84652a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee EncodeShift(kArmLsl, scale)); 847a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } else { 8482700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpAdd, reg_ptr, r_base, r_index); 849a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 8502700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee store = NewLIR3(opcode, r_src.GetReg(), reg_ptr.GetReg(), 0); 8511fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_ptr); 852a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return store; 853695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee case k32: 854695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee // Intentional fall-though. 855695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee case kReference: 856fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbStrRRR : kThumb2StrRRR; 857a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 858a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kUnsignedHalf: 859695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee // Intentional fall-though. 860a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kSignedHalf: 861fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbStrhRRR : kThumb2StrhRRR; 862a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 863a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kUnsignedByte: 864695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee // Intentional fall-though. 865a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kSignedByte: 866fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee opcode = (thumb_form) ? kThumbStrbRRR : kThumb2StrbRRR; 867a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 868a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee default: 869cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(FATAL) << "Bad size: " << size; 870a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 871fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (thumb_form) 8722700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee store = NewLIR3(opcode, r_src.GetReg(), r_base.GetReg(), r_index.GetReg()); 873a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee else 8742700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee store = NewLIR4(opcode, r_src.GetReg(), r_base.GetReg(), r_index.GetReg(), scale); 87567bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 876a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return store; 87767bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 87867bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 879db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko// Helper function for LoadBaseDispBody()/StoreBaseDispBody(). 88037573977769e9068874506050c62acd4e324d246Vladimir MarkoLIR* ArmMir2Lir::LoadStoreUsingInsnWithOffsetImm8Shl2(ArmOpcode opcode, RegStorage r_base, 88137573977769e9068874506050c62acd4e324d246Vladimir Marko int displacement, RegStorage r_src_dest, 88237573977769e9068874506050c62acd4e324d246Vladimir Marko RegStorage r_work) { 883db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko DCHECK_EQ(displacement & 3, 0); 88437573977769e9068874506050c62acd4e324d246Vladimir Marko constexpr int kOffsetMask = 0xff << 2; 88537573977769e9068874506050c62acd4e324d246Vladimir Marko int encoded_disp = (displacement & kOffsetMask) >> 2; // Within range of the instruction. 886db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko RegStorage r_ptr = r_base; 88737573977769e9068874506050c62acd4e324d246Vladimir Marko if ((displacement & ~kOffsetMask) != 0) { 888db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko r_ptr = r_work.Valid() ? r_work : AllocTemp(); 88937573977769e9068874506050c62acd4e324d246Vladimir Marko // Add displacement & ~kOffsetMask to base, it's a single instruction for up to +-256KiB. 89037573977769e9068874506050c62acd4e324d246Vladimir Marko OpRegRegImm(kOpAdd, r_ptr, r_base, displacement & ~kOffsetMask); 891db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko } 892db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko LIR* lir = nullptr; 893db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko if (!r_src_dest.IsPair()) { 894db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko lir = NewLIR3(opcode, r_src_dest.GetReg(), r_ptr.GetReg(), encoded_disp); 895db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko } else { 896db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko lir = NewLIR4(opcode, r_src_dest.GetLowReg(), r_src_dest.GetHighReg(), r_ptr.GetReg(), 897db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko encoded_disp); 898db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko } 89937573977769e9068874506050c62acd4e324d246Vladimir Marko if ((displacement & ~kOffsetMask) != 0 && !r_work.Valid()) { 900db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko FreeTemp(r_ptr); 901db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko } 902db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko return lir; 903db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko} 904db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko 90567bf885d62b1473c833bece1c9e0bb624e6ba391buzbee/* 90667bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * Load value from base + displacement. Optionally perform null check 907fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee * on base (which must have an associated s_reg and MIR). If not 90867bf885d62b1473c833bece1c9e0bb624e6ba391buzbee * performing null check, incoming MIR can be null. 90967bf885d62b1473c833bece1c9e0bb624e6ba391buzbee */ 9102700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::LoadBaseDispBody(RegStorage r_base, int displacement, RegStorage r_dest, 9113bf7c60a86d49bf8c05c5d2ac5ca8e9f80bd9824Vladimir Marko OpSize size) { 912aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko LIR* load = nullptr; 913aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko ArmOpcode opcode16 = kThumbBkpt; // 16-bit Thumb opcode. 914aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko ArmOpcode opcode32 = kThumbBkpt; // 32-bit Thumb2 opcode. 915fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee bool short_form = false; 916091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee bool all_low = r_dest.Is32Bit() && r_base.Low8() && r_dest.Low8(); 917aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko int scale = 0; // Used for opcode16 and some indexed loads. 9184ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee bool already_generated = false; 919a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee switch (size) { 920a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kDouble: 921695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee // Intentional fall-though. 922db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko case k64: 923091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_dest.IsFloat()) { 924091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee DCHECK(!r_dest.IsPair()); 92537573977769e9068874506050c62acd4e324d246Vladimir Marko load = LoadStoreUsingInsnWithOffsetImm8Shl2(kThumb2Vldrd, r_base, displacement, r_dest); 926a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } else { 927db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko DCHECK(r_dest.IsPair()); 928db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko // Use the r_dest.GetLow() for the temporary pointer if needed. 92937573977769e9068874506050c62acd4e324d246Vladimir Marko load = LoadStoreUsingInsnWithOffsetImm8Shl2(kThumb2LdrdI8, r_base, displacement, r_dest, 93037573977769e9068874506050c62acd4e324d246Vladimir Marko r_dest.GetLow()); 931a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 9323bf7c60a86d49bf8c05c5d2ac5ca8e9f80bd9824Vladimir Marko already_generated = true; 9332700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee break; 934a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kSingle: 935695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee // Intentional fall-though. 936695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee case k32: 937695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee // Intentional fall-though. 938695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee case kReference: 939091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_dest.IsFloat()) { 940db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko DCHECK(r_dest.IsSingle()); 94137573977769e9068874506050c62acd4e324d246Vladimir Marko load = LoadStoreUsingInsnWithOffsetImm8Shl2(kThumb2Vldrs, r_base, displacement, r_dest); 942db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko already_generated = true; 943a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 944a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 945aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko DCHECK_EQ((displacement & 0x3), 0); 946aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko scale = 2; 947091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_dest.Low8() && (r_base == rs_rARM_PC) && (displacement <= 1020) && 948091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee (displacement >= 0)) { 949fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee short_form = true; 950aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko opcode16 = kThumbLdrPcRel; 951091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee } else if (r_dest.Low8() && (r_base == rs_rARM_SP) && (displacement <= 1020) && 952091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee (displacement >= 0)) { 953fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee short_form = true; 954aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko opcode16 = kThumbLdrSpRel; 955aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko } else { 956aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko short_form = all_low && (displacement >> (5 + scale)) == 0; 957aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko opcode16 = kThumbLdrRRI5; 958aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko opcode32 = kThumb2LdrRRI12; 959a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 960a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 961a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kUnsignedHalf: 962aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko DCHECK_EQ((displacement & 0x1), 0); 963aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko scale = 1; 964aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko short_form = all_low && (displacement >> (5 + scale)) == 0; 965aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko opcode16 = kThumbLdrhRRI5; 966aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko opcode32 = kThumb2LdrhRRI12; 967a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 968a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kSignedHalf: 969aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko DCHECK_EQ((displacement & 0x1), 0); 970aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko scale = 1; 971aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko DCHECK_EQ(opcode16, kThumbBkpt); // Not available. 972aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko opcode32 = kThumb2LdrshRRI12; 973a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 974a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kUnsignedByte: 975aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko DCHECK_EQ(scale, 0); // Keep scale = 0. 976aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko short_form = all_low && (displacement >> (5 + scale)) == 0; 977aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko opcode16 = kThumbLdrbRRI5; 978aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko opcode32 = kThumb2LdrbRRI12; 979a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 980a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kSignedByte: 981aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko DCHECK_EQ(scale, 0); // Keep scale = 0. 982aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko DCHECK_EQ(opcode16, kThumbBkpt); // Not available. 983aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko opcode32 = kThumb2LdrsbRRI12; 984a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 985a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee default: 986cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(FATAL) << "Bad size: " << size; 987a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 98867bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 9894ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!already_generated) { 9904ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (short_form) { 991aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko load = NewLIR3(opcode16, r_dest.GetReg(), r_base.GetReg(), displacement >> scale); 992aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko } else if ((displacement >> 12) == 0) { // Thumb2 form. 993aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko load = NewLIR3(opcode32, r_dest.GetReg(), r_base.GetReg(), displacement); 994aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko } else if (!InexpensiveConstantInt(displacement >> scale, Instruction::CONST) && 995aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko InexpensiveConstantInt(displacement & ~0x00000fff, Instruction::ADD_INT)) { 996aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko // In this case, using LoadIndexed would emit 3 insns (movw+movt+ldr) but we can 997aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko // actually do it in two because we know that the kOpAdd is a single insn. On the 998aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko // other hand, we introduce an extra dependency, so this is not necessarily faster. 999aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko if (opcode16 != kThumbBkpt && r_dest.Low8() && 1000aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko InexpensiveConstantInt(displacement & ~(0x1f << scale), Instruction::ADD_INT)) { 1001aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko // We can use the 16-bit Thumb opcode for the load. 1002aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko OpRegRegImm(kOpAdd, r_dest, r_base, displacement & ~(0x1f << scale)); 1003aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko load = NewLIR3(opcode16, r_dest.GetReg(), r_dest.GetReg(), (displacement >> scale) & 0x1f); 1004aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko } else { 1005aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko DCHECK_NE(opcode32, kThumbBkpt); 1006aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko OpRegRegImm(kOpAdd, r_dest, r_base, displacement & ~0x00000fff); 1007aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko load = NewLIR3(opcode32, r_dest.GetReg(), r_dest.GetReg(), displacement & 0x00000fff); 1008aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko } 10094ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 1010aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko if (!InexpensiveConstantInt(displacement >> scale, Instruction::CONST) || 1011aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko (scale != 0 && InexpensiveConstantInt(displacement, Instruction::CONST))) { 1012aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko scale = 0; // Prefer unscaled indexing if the same number of insns. 1013aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko } 10142700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_offset = AllocTemp(); 1015aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko LoadConstant(reg_offset, displacement >> scale); 1016db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko DCHECK(!r_dest.IsFloat()); 1017aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko load = LoadBaseIndexed(r_base, reg_offset, r_dest, scale, size); 10181fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_offset); 10194ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1020a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 102167bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 1022a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee // TODO: in future may need to differentiate Dalvik accesses w/ spills 10238dea81ca9c0201ceaa88086b927a5838a06a3e69Vladimir Marko if (mem_ref_type_ == ResourceMask::kDalvikReg) { 1024b28c1c06236751aa5c9e64dcb68b3c940341e496Ian Rogers DCHECK_EQ(r_base, rs_rARM_SP); 10252700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee AnnotateDalvikRegAccess(load, displacement >> 2, true /* is_load */, r_dest.Is64Bit()); 1026a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 1027a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return load; 102867bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 102967bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 1030674744e635ddbdfb311fbd25b5a27356560d30c3Vladimir MarkoLIR* ArmMir2Lir::LoadBaseDisp(RegStorage r_base, int displacement, RegStorage r_dest, 10313c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe OpSize size, VolatileKind is_volatile) { 1032695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee // TODO: base this on target. 1033695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee if (size == kWord) { 1034695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee size = k32; 1035695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee } 10363c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe LIR* load; 10376f3dbbadf4ce66982eb3d400e0a74cb73eb034f3Ian Rogers if (is_volatile == kVolatile && (size == k64 || size == kDouble) && 10386f3dbbadf4ce66982eb3d400e0a74cb73eb034f3Ian Rogers !cu_->compiler_driver->GetInstructionSetFeatures()-> 1039d582fa4ea62083a7598dded5b82dc2198b3daac7Ian Rogers AsArmInstructionSetFeatures()->HasAtomicLdrdAndStrd()) { 10403c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe // Only 64-bit load needs special handling. 10413c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe // If the cpu supports LPAE, aligned LDRD is atomic - fall through to LoadBaseDisp(). 10423c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe DCHECK(!r_dest.IsFloat()); // See RegClassForFieldLoadSave(). 10433c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe // Use LDREXD for the atomic load. (Expect displacement > 0, don't optimize for == 0.) 10443c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe RegStorage r_ptr = AllocTemp(); 10453c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe OpRegRegImm(kOpAdd, r_ptr, r_base, displacement); 1046ee5e273e4d0dd91b480c8d5dbcccad15c1b7353cVladimir Marko load = NewLIR3(kThumb2Ldrexd, r_dest.GetLowReg(), r_dest.GetHighReg(), r_ptr.GetReg()); 10473c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe FreeTemp(r_ptr); 10483c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe } else { 10493c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe load = LoadBaseDispBody(r_base, displacement, r_dest, size); 10503c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe } 10513c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe 10523c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe if (UNLIKELY(is_volatile == kVolatile)) { 105348f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm GenMemBarrier(kLoadAny); 10543c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe } 10553c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe 10563c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe return load; 105767bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 105867bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 105967bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 10602700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::StoreBaseDispBody(RegStorage r_base, int displacement, RegStorage r_src, 10612700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpSize size) { 1062aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko LIR* store = nullptr; 1063aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko ArmOpcode opcode16 = kThumbBkpt; // 16-bit Thumb opcode. 1064aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko ArmOpcode opcode32 = kThumbBkpt; // 32-bit Thumb2 opcode. 1065fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee bool short_form = false; 1066091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee bool all_low = r_src.Is32Bit() && r_base.Low8() && r_src.Low8(); 1067aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko int scale = 0; // Used for opcode16 and some indexed loads. 10684ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee bool already_generated = false; 1069a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee switch (size) { 1070a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kDouble: 10713bf7c60a86d49bf8c05c5d2ac5ca8e9f80bd9824Vladimir Marko // Intentional fall-though. 1072db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko case k64: 10733bf7c60a86d49bf8c05c5d2ac5ca8e9f80bd9824Vladimir Marko if (r_src.IsFloat()) { 10745667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu // Note: If the register is retrieved by register allocator, it should never be a pair. 10755667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu // But some functions in mir2lir assume 64-bit registers are 32-bit register pairs. 10765667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu // TODO: Rework Mir2Lir::LoadArg() and Mir2Lir::LoadArgDirect(). 10775667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu if (r_src.IsPair()) { 10785667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu r_src = As64BitFloatReg(r_src); 10795667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu } 1080091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee DCHECK(!r_src.IsPair()); 108137573977769e9068874506050c62acd4e324d246Vladimir Marko store = LoadStoreUsingInsnWithOffsetImm8Shl2(kThumb2Vstrd, r_base, displacement, r_src); 10823bf7c60a86d49bf8c05c5d2ac5ca8e9f80bd9824Vladimir Marko } else { 1083db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko DCHECK(r_src.IsPair()); 108437573977769e9068874506050c62acd4e324d246Vladimir Marko store = LoadStoreUsingInsnWithOffsetImm8Shl2(kThumb2StrdI8, r_base, displacement, r_src); 1085a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 10863bf7c60a86d49bf8c05c5d2ac5ca8e9f80bd9824Vladimir Marko already_generated = true; 1087a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 1088a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kSingle: 1089091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee // Intentional fall-through. 1090695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee case k32: 1091091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee // Intentional fall-through. 1092695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee case kReference: 1093091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_src.IsFloat()) { 1094091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee DCHECK(r_src.IsSingle()); 109537573977769e9068874506050c62acd4e324d246Vladimir Marko store = LoadStoreUsingInsnWithOffsetImm8Shl2(kThumb2Vstrs, r_base, displacement, r_src); 1096db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko already_generated = true; 1097a188cd4ad38aa561742d5f3f5b45215f451cb834Sebastien Hertz break; 1098a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 1099aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko DCHECK_EQ((displacement & 0x3), 0); 1100aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko scale = 2; 1101091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_src.Low8() && (r_base == rs_r13sp) && (displacement <= 1020) && (displacement >= 0)) { 1102a188cd4ad38aa561742d5f3f5b45215f451cb834Sebastien Hertz short_form = true; 1103aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko opcode16 = kThumbStrSpRel; 1104aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko } else { 1105aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko short_form = all_low && (displacement >> (5 + scale)) == 0; 1106aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko opcode16 = kThumbStrRRI5; 1107aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko opcode32 = kThumb2StrRRI12; 1108a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 1109a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 1110a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kUnsignedHalf: 1111a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kSignedHalf: 1112aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko DCHECK_EQ((displacement & 0x1), 0); 1113aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko scale = 1; 1114aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko short_form = all_low && (displacement >> (5 + scale)) == 0; 1115aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko opcode16 = kThumbStrhRRI5; 1116aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko opcode32 = kThumb2StrhRRI12; 1117a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 1118a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kUnsignedByte: 1119a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kSignedByte: 1120aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko DCHECK_EQ(scale, 0); // Keep scale = 0. 1121aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko short_form = all_low && (displacement >> (5 + scale)) == 0; 1122aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko opcode16 = kThumbStrbRRI5; 1123aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko opcode32 = kThumb2StrbRRI12; 1124a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 1125a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee default: 1126cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(FATAL) << "Bad size: " << size; 1127a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 11284ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!already_generated) { 11294ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (short_form) { 1130aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko store = NewLIR3(opcode16, r_src.GetReg(), r_base.GetReg(), displacement >> scale); 1131aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko } else if ((displacement >> 12) == 0) { 1132aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko store = NewLIR3(opcode32, r_src.GetReg(), r_base.GetReg(), displacement); 1133aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko } else if (!InexpensiveConstantInt(displacement >> scale, Instruction::CONST) && 1134aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko InexpensiveConstantInt(displacement & ~0x00000fff, Instruction::ADD_INT)) { 1135aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko // In this case, using StoreIndexed would emit 3 insns (movw+movt+str) but we can 1136aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko // actually do it in two because we know that the kOpAdd is a single insn. On the 1137aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko // other hand, we introduce an extra dependency, so this is not necessarily faster. 1138aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko RegStorage r_scratch = AllocTemp(); 1139aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko if (opcode16 != kThumbBkpt && r_src.Low8() && r_scratch.Low8() && 1140aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko InexpensiveConstantInt(displacement & ~(0x1f << scale), Instruction::ADD_INT)) { 1141aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko // We can use the 16-bit Thumb opcode for the load. 1142aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko OpRegRegImm(kOpAdd, r_scratch, r_base, displacement & ~(0x1f << scale)); 1143aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko store = NewLIR3(opcode16, r_src.GetReg(), r_scratch.GetReg(), 1144aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko (displacement >> scale) & 0x1f); 1145aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko } else { 1146aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko DCHECK_NE(opcode32, kThumbBkpt); 1147aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko OpRegRegImm(kOpAdd, r_scratch, r_base, displacement & ~0x00000fff); 1148aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko store = NewLIR3(opcode32, r_src.GetReg(), r_scratch.GetReg(), displacement & 0x00000fff); 1149aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko } 1150aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko FreeTemp(r_scratch); 11514ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 1152aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko if (!InexpensiveConstantInt(displacement >> scale, Instruction::CONST) || 1153aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko (scale != 0 && InexpensiveConstantInt(displacement, Instruction::CONST))) { 1154aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko scale = 0; // Prefer unscaled indexing if the same number of insns. 1155aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko } 11562700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_scratch = AllocTemp(); 1157aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko LoadConstant(r_scratch, displacement >> scale); 1158db9d523ff305721d4ca3f1470d1b2ce64c736e0aVladimir Marko DCHECK(!r_src.IsFloat()); 1159aed3ad734c47fdccf179ff65971284a0d38583cdVladimir Marko store = StoreBaseIndexed(r_base, r_scratch, r_src, scale, size); 11601fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(r_scratch); 11614ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1162a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 116367bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 1164a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee // TODO: In future, may need to differentiate Dalvik & spill accesses 11658dea81ca9c0201ceaa88086b927a5838a06a3e69Vladimir Marko if (mem_ref_type_ == ResourceMask::kDalvikReg) { 1166b28c1c06236751aa5c9e64dcb68b3c940341e496Ian Rogers DCHECK_EQ(r_base, rs_rARM_SP); 11672700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee AnnotateDalvikRegAccess(store, displacement >> 2, false /* is_load */, r_src.Is64Bit()); 1168a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 11694ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee return store; 117067bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 117167bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 11723c12c512faf6837844d5465b23b9410889e5eb11Andreas GampeLIR* ArmMir2Lir::StoreBaseDisp(RegStorage r_base, int displacement, RegStorage r_src, 11733c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe OpSize size, VolatileKind is_volatile) { 11743c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe if (UNLIKELY(is_volatile == kVolatile)) { 117548f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm // Ensure that prior accesses become visible to other threads first. 117648f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm GenMemBarrier(kAnyStore); 11773c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe } 11783c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe 1179ee5e273e4d0dd91b480c8d5dbcccad15c1b7353cVladimir Marko LIR* null_ck_insn; 11806f3dbbadf4ce66982eb3d400e0a74cb73eb034f3Ian Rogers if (is_volatile == kVolatile && (size == k64 || size == kDouble) && 11816f3dbbadf4ce66982eb3d400e0a74cb73eb034f3Ian Rogers !cu_->compiler_driver->GetInstructionSetFeatures()-> 1182d582fa4ea62083a7598dded5b82dc2198b3daac7Ian Rogers AsArmInstructionSetFeatures()->HasAtomicLdrdAndStrd()) { 11833c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe // Only 64-bit store needs special handling. 1184de68676b24f61a55adc0b22fe828f036a5925c41Andreas Gampe // If the cpu supports LPAE, aligned STRD is atomic - fall through to StoreBaseDisp(). 11853c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe // Use STREXD for the atomic store. (Expect displacement > 0, don't optimize for == 0.) 11863c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe DCHECK(!r_src.IsFloat()); // See RegClassForFieldLoadSave(). 11873c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe RegStorage r_ptr = AllocTemp(); 11883c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe OpRegRegImm(kOpAdd, r_ptr, r_base, displacement); 11893c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe LIR* fail_target = NewLIR0(kPseudoTargetLabel); 11903c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe // We have only 5 temporary registers available and if r_base, r_src and r_ptr already 11913c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe // take 4, we can't directly allocate 2 more for LDREXD temps. In that case clobber r_ptr 11923c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe // in LDREXD and recalculate it from r_base. 11933c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe RegStorage r_temp = AllocTemp(); 11949ee4519afd97121f893f82d41d23164fc6c9ed34Serguei Katkov RegStorage r_temp_high = AllocTemp(false); // We may not have another temp. 11953c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe if (r_temp_high.Valid()) { 1196ee5e273e4d0dd91b480c8d5dbcccad15c1b7353cVladimir Marko null_ck_insn = NewLIR3(kThumb2Ldrexd, r_temp.GetReg(), r_temp_high.GetReg(), r_ptr.GetReg()); 11973c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe FreeTemp(r_temp_high); 11983c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe FreeTemp(r_temp); 11993c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe } else { 12003c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe // If we don't have another temp, clobber r_ptr in LDREXD and reload it. 1201ee5e273e4d0dd91b480c8d5dbcccad15c1b7353cVladimir Marko null_ck_insn = NewLIR3(kThumb2Ldrexd, r_temp.GetReg(), r_ptr.GetReg(), r_ptr.GetReg()); 12023c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe FreeTemp(r_temp); // May need the temp for kOpAdd. 1203674744e635ddbdfb311fbd25b5a27356560d30c3Vladimir Marko OpRegRegImm(kOpAdd, r_ptr, r_base, displacement); 1204674744e635ddbdfb311fbd25b5a27356560d30c3Vladimir Marko } 1205ee5e273e4d0dd91b480c8d5dbcccad15c1b7353cVladimir Marko NewLIR4(kThumb2Strexd, r_temp.GetReg(), r_src.GetLowReg(), r_src.GetHighReg(), r_ptr.GetReg()); 12063c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe OpCmpImmBranch(kCondNe, r_temp, 0, fail_target); 12073c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe FreeTemp(r_ptr); 12083c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe } else { 12093c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe // TODO: base this on target. 12103c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe if (size == kWord) { 12113c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe size = k32; 12123c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe } 12133c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe 1214ee5e273e4d0dd91b480c8d5dbcccad15c1b7353cVladimir Marko null_ck_insn = StoreBaseDispBody(r_base, displacement, r_src, size); 1215674744e635ddbdfb311fbd25b5a27356560d30c3Vladimir Marko } 1216674744e635ddbdfb311fbd25b5a27356560d30c3Vladimir Marko 12173c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe if (UNLIKELY(is_volatile == kVolatile)) { 121848f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm // Preserve order with respect to any subsequent volatile loads. 121948f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm // We need StoreLoad, but that generally requires the most expensive barrier. 122048f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm GenMemBarrier(kAnyAny); 1221695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee } 12223c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe 1223ee5e273e4d0dd91b480c8d5dbcccad15c1b7353cVladimir Marko return null_ck_insn; 122467bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 122567bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 12262700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpFpRegCopy(RegStorage r_dest, RegStorage r_src) { 1227a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee int opcode; 1228091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee DCHECK_EQ(r_dest.IsDouble(), r_src.IsDouble()); 1229091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_dest.IsDouble()) { 1230a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2Vmovd; 1231a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } else { 1232091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_dest.IsSingle()) { 1233091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee opcode = r_src.IsSingle() ? kThumb2Vmovs : kThumb2Fmsr; 123467bf885d62b1473c833bece1c9e0bb624e6ba391buzbee } else { 1235091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee DCHECK(r_src.IsSingle()); 1236a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee opcode = kThumb2Fmrs; 123767bf885d62b1473c833bece1c9e0bb624e6ba391buzbee } 1238a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 12392700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LIR* res = RawLIR(current_dalvik_offset_, opcode, r_dest.GetReg(), r_src.GetReg()); 12401fd3346740dfb7f47be9922312b68a4227fada96buzbee if (!(cu_->disable_opt & (1 << kSafeOptimizations)) && r_dest == r_src) { 1241fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee res->flags.is_nop = true; 1242a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 1243a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return res; 124467bf885d62b1473c833bece1c9e0bb624e6ba391buzbee} 124567bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 12462700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpMem(OpKind op, RegStorage r_base, int disp) { 12476a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNUSED(op, r_base, disp); 124852a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "Unexpected use of OpMem for Arm"; 12496a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNREACHABLE(); 1250b046e16d8b8da318d6055f9308950131f1255e08buzbee} 125167bf885d62b1473c833bece1c9e0bb624e6ba391buzbee 1252984305917bf57b3f8d92965e4715a0370cc5bcfbAndreas GampeLIR* ArmMir2Lir::InvokeTrampoline(OpKind op, RegStorage r_tgt, QuickEntrypointEnum trampoline) { 12536a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNUSED(trampoline); // The address of the trampoline is already loaded into r_tgt. 1254984305917bf57b3f8d92965e4715a0370cc5bcfbAndreas Gampe return OpReg(op, r_tgt); 1255b046e16d8b8da318d6055f9308950131f1255e08buzbee} 125611d1b0c31ddd710d26068da8e0e4621002205b4bElliott Hughes 125763999683329612292d534e6be09dbde9480f1250Serban Constantinescusize_t ArmMir2Lir::GetInstructionOffset(LIR* lir) { 125863999683329612292d534e6be09dbde9480f1250Serban Constantinescu uint64_t check_flags = GetTargetInstFlags(lir->opcode); 125963999683329612292d534e6be09dbde9480f1250Serban Constantinescu DCHECK((check_flags & IS_LOAD) || (check_flags & IS_STORE)); 126063999683329612292d534e6be09dbde9480f1250Serban Constantinescu size_t offset = (check_flags & IS_TERTIARY_OP) ? lir->operands[2] : 0; 126163999683329612292d534e6be09dbde9480f1250Serban Constantinescu 126263999683329612292d534e6be09dbde9480f1250Serban Constantinescu if (check_flags & SCALED_OFFSET_X2) { 126363999683329612292d534e6be09dbde9480f1250Serban Constantinescu offset = offset * 2; 126463999683329612292d534e6be09dbde9480f1250Serban Constantinescu } else if (check_flags & SCALED_OFFSET_X4) { 126563999683329612292d534e6be09dbde9480f1250Serban Constantinescu offset = offset * 4; 126663999683329612292d534e6be09dbde9480f1250Serban Constantinescu } 126763999683329612292d534e6be09dbde9480f1250Serban Constantinescu return offset; 126863999683329612292d534e6be09dbde9480f1250Serban Constantinescu} 126963999683329612292d534e6be09dbde9480f1250Serban Constantinescu 1270cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Markovoid ArmMir2Lir::CountRefs(RefCounts* core_counts, RefCounts* fp_counts, size_t num_regs) { 1271cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko // Start with the default counts. 1272cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko Mir2Lir::CountRefs(core_counts, fp_counts, num_regs); 1273cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko 1274cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko if (pc_rel_temp_ != nullptr) { 1275cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko // Now, if the dex cache array base temp is used only once outside any loops (weight = 1), 12761961b609bfefaedb71cee3651c4f931cc3e7393dVladimir Marko // avoid the promotion, otherwise boost the weight by factor 3 because the full PC-relative 12771961b609bfefaedb71cee3651c4f931cc3e7393dVladimir Marko // load sequence is 4 instructions long and by promoting the PC base we save up to 3 12781961b609bfefaedb71cee3651c4f931cc3e7393dVladimir Marko // instructions per use. 1279cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko int p_map_idx = SRegToPMap(pc_rel_temp_->s_reg_low); 1280cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko if (core_counts[p_map_idx].count == 1) { 1281cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko core_counts[p_map_idx].count = 0; 1282cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko } else { 12831961b609bfefaedb71cee3651c4f931cc3e7393dVladimir Marko core_counts[p_map_idx].count *= 3; 1284cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko } 1285cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko } 1286cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko} 1287cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko 1288cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Markovoid ArmMir2Lir::DoPromotion() { 1289cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko if (CanUseOpPcRelDexCacheArrayLoad()) { 1290cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko pc_rel_temp_ = mir_graph_->GetNewCompilerTemp(kCompilerTempBackend, false); 1291cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko } 1292cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko 1293cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko Mir2Lir::DoPromotion(); 1294cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko 1295cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko if (pc_rel_temp_ != nullptr) { 1296cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko // Now, if the dex cache array base temp is promoted, remember the register but 1297cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko // always remove the temp's stack location to avoid unnecessarily bloating the stack. 1298cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko dex_cache_arrays_base_reg_ = mir_graph_->reg_location_[pc_rel_temp_->s_reg_low].reg; 1299cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko DCHECK(!dex_cache_arrays_base_reg_.Valid() || !dex_cache_arrays_base_reg_.IsFloat()); 1300cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko mir_graph_->RemoveLastCompilerTemp(kCompilerTempBackend, false, pc_rel_temp_); 1301cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko pc_rel_temp_ = nullptr; 1302cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko } 1303cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko} 1304cc23481b66fd1f2b459d82da4852073e32f033aaVladimir Marko 130511d1b0c31ddd710d26068da8e0e4621002205b4bElliott Hughes} // namespace art 1306