Roland Levillain | 1a28fc4 | 2014-11-13 18:03:06 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "assembler_thumb2.h" |
| 18 | |
| 19 | #include "base/stl_util.h" |
Andreas Gampe | 7cffc3b | 2015-10-19 21:31:53 -0700 | [diff] [blame] | 20 | #include "base/stringprintf.h" |
Roland Levillain | 1a28fc4 | 2014-11-13 18:03:06 +0000 | [diff] [blame] | 21 | #include "utils/assembler_test.h" |
| 22 | |
| 23 | namespace art { |
| 24 | |
| 25 | class AssemblerThumb2Test : public AssemblerTest<arm::Thumb2Assembler, |
Andreas Gampe | 851df20 | 2014-11-12 14:05:46 -0800 | [diff] [blame] | 26 | arm::Register, arm::SRegister, |
| 27 | uint32_t> { |
Roland Levillain | 1a28fc4 | 2014-11-13 18:03:06 +0000 | [diff] [blame] | 28 | protected: |
| 29 | std::string GetArchitectureString() OVERRIDE { |
| 30 | return "arm"; |
| 31 | } |
| 32 | |
| 33 | std::string GetAssemblerParameters() OVERRIDE { |
Andreas Gampe | 513ea0c | 2015-02-02 13:17:52 -0800 | [diff] [blame] | 34 | return " -march=armv7-a -mcpu=cortex-a15 -mfpu=neon -mthumb"; |
| 35 | } |
| 36 | |
| 37 | const char* GetAssemblyHeader() OVERRIDE { |
| 38 | return kThumb2AssemblyHeader; |
Roland Levillain | 1a28fc4 | 2014-11-13 18:03:06 +0000 | [diff] [blame] | 39 | } |
| 40 | |
| 41 | std::string GetDisassembleParameters() OVERRIDE { |
Andreas Gampe | 513ea0c | 2015-02-02 13:17:52 -0800 | [diff] [blame] | 42 | return " -D -bbinary -marm --disassembler-options=force-thumb --no-show-raw-insn"; |
Roland Levillain | 1a28fc4 | 2014-11-13 18:03:06 +0000 | [diff] [blame] | 43 | } |
| 44 | |
| 45 | void SetUpHelpers() OVERRIDE { |
| 46 | if (registers_.size() == 0) { |
| 47 | registers_.insert(end(registers_), |
| 48 | { // NOLINT(whitespace/braces) |
| 49 | new arm::Register(arm::R0), |
| 50 | new arm::Register(arm::R1), |
| 51 | new arm::Register(arm::R2), |
| 52 | new arm::Register(arm::R3), |
| 53 | new arm::Register(arm::R4), |
| 54 | new arm::Register(arm::R5), |
| 55 | new arm::Register(arm::R6), |
| 56 | new arm::Register(arm::R7), |
| 57 | new arm::Register(arm::R8), |
| 58 | new arm::Register(arm::R9), |
| 59 | new arm::Register(arm::R10), |
| 60 | new arm::Register(arm::R11), |
| 61 | new arm::Register(arm::R12), |
| 62 | new arm::Register(arm::R13), |
| 63 | new arm::Register(arm::R14), |
| 64 | new arm::Register(arm::R15) |
| 65 | }); |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | void TearDown() OVERRIDE { |
| 70 | AssemblerTest::TearDown(); |
| 71 | STLDeleteElements(®isters_); |
| 72 | } |
| 73 | |
| 74 | std::vector<arm::Register*> GetRegisters() OVERRIDE { |
| 75 | return registers_; |
| 76 | } |
| 77 | |
| 78 | uint32_t CreateImmediate(int64_t imm_value) OVERRIDE { |
| 79 | return imm_value; |
| 80 | } |
| 81 | |
Vladimir Marko | cf93a5c | 2015-06-16 11:33:24 +0000 | [diff] [blame] | 82 | std::string RepeatInsn(size_t count, const std::string& insn) { |
| 83 | std::string result; |
| 84 | for (; count != 0u; --count) { |
| 85 | result += insn; |
| 86 | } |
| 87 | return result; |
| 88 | } |
| 89 | |
Roland Levillain | 1a28fc4 | 2014-11-13 18:03:06 +0000 | [diff] [blame] | 90 | private: |
| 91 | std::vector<arm::Register*> registers_; |
Andreas Gampe | 513ea0c | 2015-02-02 13:17:52 -0800 | [diff] [blame] | 92 | |
| 93 | static constexpr const char* kThumb2AssemblyHeader = ".syntax unified\n.thumb\n"; |
Roland Levillain | 1a28fc4 | 2014-11-13 18:03:06 +0000 | [diff] [blame] | 94 | }; |
| 95 | |
Roland Levillain | 1a28fc4 | 2014-11-13 18:03:06 +0000 | [diff] [blame] | 96 | TEST_F(AssemblerThumb2Test, Toolchain) { |
| 97 | EXPECT_TRUE(CheckTools()); |
| 98 | } |
| 99 | |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 100 | #define __ GetAssembler()-> |
Roland Levillain | 1a28fc4 | 2014-11-13 18:03:06 +0000 | [diff] [blame] | 101 | |
| 102 | TEST_F(AssemblerThumb2Test, Sbfx) { |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 103 | __ sbfx(arm::R0, arm::R1, 0, 1); |
| 104 | __ sbfx(arm::R0, arm::R1, 0, 8); |
| 105 | __ sbfx(arm::R0, arm::R1, 0, 16); |
| 106 | __ sbfx(arm::R0, arm::R1, 0, 32); |
Roland Levillain | 1a28fc4 | 2014-11-13 18:03:06 +0000 | [diff] [blame] | 107 | |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 108 | __ sbfx(arm::R0, arm::R1, 8, 1); |
| 109 | __ sbfx(arm::R0, arm::R1, 8, 8); |
| 110 | __ sbfx(arm::R0, arm::R1, 8, 16); |
| 111 | __ sbfx(arm::R0, arm::R1, 8, 24); |
Roland Levillain | 1a28fc4 | 2014-11-13 18:03:06 +0000 | [diff] [blame] | 112 | |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 113 | __ sbfx(arm::R0, arm::R1, 16, 1); |
| 114 | __ sbfx(arm::R0, arm::R1, 16, 8); |
| 115 | __ sbfx(arm::R0, arm::R1, 16, 16); |
Roland Levillain | 1a28fc4 | 2014-11-13 18:03:06 +0000 | [diff] [blame] | 116 | |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 117 | __ sbfx(arm::R0, arm::R1, 31, 1); |
Roland Levillain | 1a28fc4 | 2014-11-13 18:03:06 +0000 | [diff] [blame] | 118 | |
| 119 | const char* expected = |
| 120 | "sbfx r0, r1, #0, #1\n" |
| 121 | "sbfx r0, r1, #0, #8\n" |
| 122 | "sbfx r0, r1, #0, #16\n" |
| 123 | "sbfx r0, r1, #0, #32\n" |
| 124 | |
| 125 | "sbfx r0, r1, #8, #1\n" |
| 126 | "sbfx r0, r1, #8, #8\n" |
| 127 | "sbfx r0, r1, #8, #16\n" |
| 128 | "sbfx r0, r1, #8, #24\n" |
| 129 | |
| 130 | "sbfx r0, r1, #16, #1\n" |
| 131 | "sbfx r0, r1, #16, #8\n" |
| 132 | "sbfx r0, r1, #16, #16\n" |
| 133 | |
| 134 | "sbfx r0, r1, #31, #1\n"; |
| 135 | DriverStr(expected, "sbfx"); |
| 136 | } |
| 137 | |
Roland Levillain | 981e454 | 2014-11-14 11:47:14 +0000 | [diff] [blame] | 138 | TEST_F(AssemblerThumb2Test, Ubfx) { |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 139 | __ ubfx(arm::R0, arm::R1, 0, 1); |
| 140 | __ ubfx(arm::R0, arm::R1, 0, 8); |
| 141 | __ ubfx(arm::R0, arm::R1, 0, 16); |
| 142 | __ ubfx(arm::R0, arm::R1, 0, 32); |
Roland Levillain | 981e454 | 2014-11-14 11:47:14 +0000 | [diff] [blame] | 143 | |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 144 | __ ubfx(arm::R0, arm::R1, 8, 1); |
| 145 | __ ubfx(arm::R0, arm::R1, 8, 8); |
| 146 | __ ubfx(arm::R0, arm::R1, 8, 16); |
| 147 | __ ubfx(arm::R0, arm::R1, 8, 24); |
Roland Levillain | 981e454 | 2014-11-14 11:47:14 +0000 | [diff] [blame] | 148 | |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 149 | __ ubfx(arm::R0, arm::R1, 16, 1); |
| 150 | __ ubfx(arm::R0, arm::R1, 16, 8); |
| 151 | __ ubfx(arm::R0, arm::R1, 16, 16); |
Roland Levillain | 981e454 | 2014-11-14 11:47:14 +0000 | [diff] [blame] | 152 | |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 153 | __ ubfx(arm::R0, arm::R1, 31, 1); |
Roland Levillain | 981e454 | 2014-11-14 11:47:14 +0000 | [diff] [blame] | 154 | |
| 155 | const char* expected = |
| 156 | "ubfx r0, r1, #0, #1\n" |
| 157 | "ubfx r0, r1, #0, #8\n" |
| 158 | "ubfx r0, r1, #0, #16\n" |
| 159 | "ubfx r0, r1, #0, #32\n" |
| 160 | |
| 161 | "ubfx r0, r1, #8, #1\n" |
| 162 | "ubfx r0, r1, #8, #8\n" |
| 163 | "ubfx r0, r1, #8, #16\n" |
| 164 | "ubfx r0, r1, #8, #24\n" |
| 165 | |
| 166 | "ubfx r0, r1, #16, #1\n" |
| 167 | "ubfx r0, r1, #16, #8\n" |
| 168 | "ubfx r0, r1, #16, #16\n" |
| 169 | |
| 170 | "ubfx r0, r1, #31, #1\n"; |
| 171 | DriverStr(expected, "ubfx"); |
| 172 | } |
| 173 | |
Calin Juravle | ddb7df2 | 2014-11-25 20:56:51 +0000 | [diff] [blame] | 174 | TEST_F(AssemblerThumb2Test, Vmstat) { |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 175 | __ vmstat(); |
Calin Juravle | ddb7df2 | 2014-11-25 20:56:51 +0000 | [diff] [blame] | 176 | |
| 177 | const char* expected = "vmrs APSR_nzcv, FPSCR\n"; |
| 178 | |
| 179 | DriverStr(expected, "vmrs"); |
| 180 | } |
| 181 | |
Calin Juravle | 52c4896 | 2014-12-16 17:02:57 +0000 | [diff] [blame] | 182 | TEST_F(AssemblerThumb2Test, ldrexd) { |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 183 | __ ldrexd(arm::R0, arm::R1, arm::R0); |
| 184 | __ ldrexd(arm::R0, arm::R1, arm::R1); |
| 185 | __ ldrexd(arm::R0, arm::R1, arm::R2); |
| 186 | __ ldrexd(arm::R5, arm::R3, arm::R7); |
Calin Juravle | 52c4896 | 2014-12-16 17:02:57 +0000 | [diff] [blame] | 187 | |
| 188 | const char* expected = |
| 189 | "ldrexd r0, r1, [r0]\n" |
| 190 | "ldrexd r0, r1, [r1]\n" |
| 191 | "ldrexd r0, r1, [r2]\n" |
| 192 | "ldrexd r5, r3, [r7]\n"; |
| 193 | DriverStr(expected, "ldrexd"); |
| 194 | } |
| 195 | |
| 196 | TEST_F(AssemblerThumb2Test, strexd) { |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 197 | __ strexd(arm::R9, arm::R0, arm::R1, arm::R0); |
| 198 | __ strexd(arm::R9, arm::R0, arm::R1, arm::R1); |
| 199 | __ strexd(arm::R9, arm::R0, arm::R1, arm::R2); |
| 200 | __ strexd(arm::R9, arm::R5, arm::R3, arm::R7); |
Calin Juravle | 52c4896 | 2014-12-16 17:02:57 +0000 | [diff] [blame] | 201 | |
| 202 | const char* expected = |
| 203 | "strexd r9, r0, r1, [r0]\n" |
| 204 | "strexd r9, r0, r1, [r1]\n" |
| 205 | "strexd r9, r0, r1, [r2]\n" |
| 206 | "strexd r9, r5, r3, [r7]\n"; |
| 207 | DriverStr(expected, "strexd"); |
| 208 | } |
| 209 | |
Andreas Gampe | 2bcf9bf | 2015-01-29 09:56:07 -0800 | [diff] [blame] | 210 | TEST_F(AssemblerThumb2Test, LdrdStrd) { |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 211 | __ ldrd(arm::R0, arm::Address(arm::R2, 8)); |
| 212 | __ ldrd(arm::R0, arm::Address(arm::R12)); |
| 213 | __ strd(arm::R0, arm::Address(arm::R2, 8)); |
Andreas Gampe | 2bcf9bf | 2015-01-29 09:56:07 -0800 | [diff] [blame] | 214 | |
| 215 | const char* expected = |
| 216 | "ldrd r0, r1, [r2, #8]\n" |
| 217 | "ldrd r0, r1, [r12]\n" |
| 218 | "strd r0, r1, [r2, #8]\n"; |
| 219 | DriverStr(expected, "ldrdstrd"); |
| 220 | } |
| 221 | |
Andreas Gampe | 513ea0c | 2015-02-02 13:17:52 -0800 | [diff] [blame] | 222 | TEST_F(AssemblerThumb2Test, eor) { |
Andreas Gampe | 513ea0c | 2015-02-02 13:17:52 -0800 | [diff] [blame] | 223 | __ eor(arm::R1, arm::R1, arm::ShifterOperand(arm::R0)); |
| 224 | __ eor(arm::R1, arm::R0, arm::ShifterOperand(arm::R1)); |
| 225 | __ eor(arm::R1, arm::R8, arm::ShifterOperand(arm::R0)); |
| 226 | __ eor(arm::R8, arm::R1, arm::ShifterOperand(arm::R0)); |
| 227 | __ eor(arm::R1, arm::R0, arm::ShifterOperand(arm::R8)); |
| 228 | |
| 229 | const char* expected = |
| 230 | "eors r1, r0\n" |
| 231 | "eor r1, r0, r1\n" |
| 232 | "eor r1, r8, r0\n" |
| 233 | "eor r8, r1, r0\n" |
| 234 | "eor r1, r0, r8\n"; |
| 235 | DriverStr(expected, "abs"); |
| 236 | } |
| 237 | |
Guillaume "Vermeille" Sanchez | dc62c48 | 2015-03-11 14:30:31 +0000 | [diff] [blame] | 238 | TEST_F(AssemblerThumb2Test, sub) { |
| 239 | __ subs(arm::R1, arm::R0, arm::ShifterOperand(42)); |
| 240 | __ sub(arm::R1, arm::R0, arm::ShifterOperand(42)); |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 241 | __ subs(arm::R1, arm::R0, arm::ShifterOperand(arm::R2, arm::ASR, 31)); |
| 242 | __ sub(arm::R1, arm::R0, arm::ShifterOperand(arm::R2, arm::ASR, 31)); |
Guillaume "Vermeille" Sanchez | dc62c48 | 2015-03-11 14:30:31 +0000 | [diff] [blame] | 243 | |
| 244 | const char* expected = |
| 245 | "subs r1, r0, #42\n" |
Vladimir Marko | 6fd0ffe | 2015-11-19 21:13:52 +0000 | [diff] [blame] | 246 | "sub.w r1, r0, #42\n" |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 247 | "subs r1, r0, r2, asr #31\n" |
| 248 | "sub r1, r0, r2, asr #31\n"; |
Guillaume "Vermeille" Sanchez | dc62c48 | 2015-03-11 14:30:31 +0000 | [diff] [blame] | 249 | DriverStr(expected, "sub"); |
| 250 | } |
| 251 | |
| 252 | TEST_F(AssemblerThumb2Test, add) { |
| 253 | __ adds(arm::R1, arm::R0, arm::ShifterOperand(42)); |
| 254 | __ add(arm::R1, arm::R0, arm::ShifterOperand(42)); |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 255 | __ adds(arm::R1, arm::R0, arm::ShifterOperand(arm::R2, arm::ASR, 31)); |
| 256 | __ add(arm::R1, arm::R0, arm::ShifterOperand(arm::R2, arm::ASR, 31)); |
Guillaume "Vermeille" Sanchez | dc62c48 | 2015-03-11 14:30:31 +0000 | [diff] [blame] | 257 | |
| 258 | const char* expected = |
| 259 | "adds r1, r0, #42\n" |
Vladimir Marko | 6fd0ffe | 2015-11-19 21:13:52 +0000 | [diff] [blame] | 260 | "add.w r1, r0, #42\n" |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 261 | "adds r1, r0, r2, asr #31\n" |
| 262 | "add r1, r0, r2, asr #31\n"; |
Guillaume "Vermeille" Sanchez | dc62c48 | 2015-03-11 14:30:31 +0000 | [diff] [blame] | 263 | DriverStr(expected, "add"); |
| 264 | } |
| 265 | |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 266 | TEST_F(AssemblerThumb2Test, umull) { |
| 267 | __ umull(arm::R0, arm::R1, arm::R2, arm::R3); |
| 268 | |
| 269 | const char* expected = |
| 270 | "umull r0, r1, r2, r3\n"; |
| 271 | DriverStr(expected, "umull"); |
| 272 | } |
| 273 | |
| 274 | TEST_F(AssemblerThumb2Test, smull) { |
| 275 | __ smull(arm::R0, arm::R1, arm::R2, arm::R3); |
| 276 | |
| 277 | const char* expected = |
| 278 | "smull r0, r1, r2, r3\n"; |
| 279 | DriverStr(expected, "smull"); |
| 280 | } |
| 281 | |
Vladimir Marko | 3a656e1 | 2016-08-02 14:57:56 +0100 | [diff] [blame] | 282 | TEST_F(AssemblerThumb2Test, LoadByteFromThumbOffset) { |
| 283 | arm::LoadOperandType type = arm::kLoadUnsignedByte; |
| 284 | |
| 285 | __ LoadFromOffset(type, arm::R0, arm::R7, 0); |
| 286 | __ LoadFromOffset(type, arm::R1, arm::R7, 31); |
| 287 | __ LoadFromOffset(type, arm::R2, arm::R7, 32); |
| 288 | __ LoadFromOffset(type, arm::R3, arm::R7, 4095); |
| 289 | __ LoadFromOffset(type, arm::R4, arm::SP, 0); |
| 290 | |
| 291 | const char* expected = |
| 292 | "ldrb r0, [r7, #0]\n" |
| 293 | "ldrb r1, [r7, #31]\n" |
| 294 | "ldrb.w r2, [r7, #32]\n" |
| 295 | "ldrb.w r3, [r7, #4095]\n" |
| 296 | "ldrb.w r4, [sp, #0]\n"; |
| 297 | DriverStr(expected, "LoadByteFromThumbOffset"); |
| 298 | } |
| 299 | |
| 300 | TEST_F(AssemblerThumb2Test, StoreByteToThumbOffset) { |
| 301 | arm::StoreOperandType type = arm::kStoreByte; |
| 302 | |
| 303 | __ StoreToOffset(type, arm::R0, arm::R7, 0); |
| 304 | __ StoreToOffset(type, arm::R1, arm::R7, 31); |
| 305 | __ StoreToOffset(type, arm::R2, arm::R7, 32); |
| 306 | __ StoreToOffset(type, arm::R3, arm::R7, 4095); |
| 307 | __ StoreToOffset(type, arm::R4, arm::SP, 0); |
| 308 | |
| 309 | const char* expected = |
| 310 | "strb r0, [r7, #0]\n" |
| 311 | "strb r1, [r7, #31]\n" |
| 312 | "strb.w r2, [r7, #32]\n" |
| 313 | "strb.w r3, [r7, #4095]\n" |
| 314 | "strb.w r4, [sp, #0]\n"; |
| 315 | DriverStr(expected, "StoreByteToThumbOffset"); |
| 316 | } |
| 317 | |
| 318 | TEST_F(AssemblerThumb2Test, LoadHalfFromThumbOffset) { |
| 319 | arm::LoadOperandType type = arm::kLoadUnsignedHalfword; |
| 320 | |
| 321 | __ LoadFromOffset(type, arm::R0, arm::R7, 0); |
| 322 | __ LoadFromOffset(type, arm::R1, arm::R7, 62); |
| 323 | __ LoadFromOffset(type, arm::R2, arm::R7, 64); |
| 324 | __ LoadFromOffset(type, arm::R3, arm::R7, 4094); |
| 325 | __ LoadFromOffset(type, arm::R4, arm::SP, 0); |
| 326 | __ LoadFromOffset(type, arm::R5, arm::R7, 1); // Unaligned |
| 327 | |
| 328 | const char* expected = |
| 329 | "ldrh r0, [r7, #0]\n" |
| 330 | "ldrh r1, [r7, #62]\n" |
| 331 | "ldrh.w r2, [r7, #64]\n" |
| 332 | "ldrh.w r3, [r7, #4094]\n" |
| 333 | "ldrh.w r4, [sp, #0]\n" |
| 334 | "ldrh.w r5, [r7, #1]\n"; |
| 335 | DriverStr(expected, "LoadHalfFromThumbOffset"); |
| 336 | } |
| 337 | |
| 338 | TEST_F(AssemblerThumb2Test, StoreHalfToThumbOffset) { |
| 339 | arm::StoreOperandType type = arm::kStoreHalfword; |
| 340 | |
| 341 | __ StoreToOffset(type, arm::R0, arm::R7, 0); |
| 342 | __ StoreToOffset(type, arm::R1, arm::R7, 62); |
| 343 | __ StoreToOffset(type, arm::R2, arm::R7, 64); |
| 344 | __ StoreToOffset(type, arm::R3, arm::R7, 4094); |
| 345 | __ StoreToOffset(type, arm::R4, arm::SP, 0); |
| 346 | __ StoreToOffset(type, arm::R5, arm::R7, 1); // Unaligned |
| 347 | |
| 348 | const char* expected = |
| 349 | "strh r0, [r7, #0]\n" |
| 350 | "strh r1, [r7, #62]\n" |
| 351 | "strh.w r2, [r7, #64]\n" |
| 352 | "strh.w r3, [r7, #4094]\n" |
| 353 | "strh.w r4, [sp, #0]\n" |
| 354 | "strh.w r5, [r7, #1]\n"; |
| 355 | DriverStr(expected, "StoreHalfToThumbOffset"); |
| 356 | } |
| 357 | |
| 358 | TEST_F(AssemblerThumb2Test, LoadWordFromSpPlusOffset) { |
| 359 | arm::LoadOperandType type = arm::kLoadWord; |
| 360 | |
| 361 | __ LoadFromOffset(type, arm::R0, arm::SP, 0); |
| 362 | __ LoadFromOffset(type, arm::R1, arm::SP, 124); |
| 363 | __ LoadFromOffset(type, arm::R2, arm::SP, 128); |
| 364 | __ LoadFromOffset(type, arm::R3, arm::SP, 1020); |
| 365 | __ LoadFromOffset(type, arm::R4, arm::SP, 1024); |
| 366 | __ LoadFromOffset(type, arm::R5, arm::SP, 4092); |
| 367 | __ LoadFromOffset(type, arm::R6, arm::SP, 1); // Unaligned |
| 368 | |
| 369 | const char* expected = |
| 370 | "ldr r0, [sp, #0]\n" |
| 371 | "ldr r1, [sp, #124]\n" |
| 372 | "ldr r2, [sp, #128]\n" |
| 373 | "ldr r3, [sp, #1020]\n" |
| 374 | "ldr.w r4, [sp, #1024]\n" |
| 375 | "ldr.w r5, [sp, #4092]\n" |
| 376 | "ldr.w r6, [sp, #1]\n"; |
| 377 | DriverStr(expected, "LoadWordFromSpPlusOffset"); |
| 378 | } |
| 379 | |
| 380 | TEST_F(AssemblerThumb2Test, StoreWordToSpPlusOffset) { |
| 381 | arm::StoreOperandType type = arm::kStoreWord; |
| 382 | |
| 383 | __ StoreToOffset(type, arm::R0, arm::SP, 0); |
| 384 | __ StoreToOffset(type, arm::R1, arm::SP, 124); |
| 385 | __ StoreToOffset(type, arm::R2, arm::SP, 128); |
| 386 | __ StoreToOffset(type, arm::R3, arm::SP, 1020); |
| 387 | __ StoreToOffset(type, arm::R4, arm::SP, 1024); |
| 388 | __ StoreToOffset(type, arm::R5, arm::SP, 4092); |
| 389 | __ StoreToOffset(type, arm::R6, arm::SP, 1); // Unaligned |
| 390 | |
| 391 | const char* expected = |
| 392 | "str r0, [sp, #0]\n" |
| 393 | "str r1, [sp, #124]\n" |
| 394 | "str r2, [sp, #128]\n" |
| 395 | "str r3, [sp, #1020]\n" |
| 396 | "str.w r4, [sp, #1024]\n" |
| 397 | "str.w r5, [sp, #4092]\n" |
| 398 | "str.w r6, [sp, #1]\n"; |
| 399 | DriverStr(expected, "StoreWordToSpPlusOffset"); |
| 400 | } |
| 401 | |
| 402 | TEST_F(AssemblerThumb2Test, LoadWordFromPcPlusOffset) { |
| 403 | arm::LoadOperandType type = arm::kLoadWord; |
| 404 | |
| 405 | __ LoadFromOffset(type, arm::R0, arm::PC, 0); |
| 406 | __ LoadFromOffset(type, arm::R1, arm::PC, 124); |
| 407 | __ LoadFromOffset(type, arm::R2, arm::PC, 128); |
| 408 | __ LoadFromOffset(type, arm::R3, arm::PC, 1020); |
| 409 | __ LoadFromOffset(type, arm::R4, arm::PC, 1024); |
| 410 | __ LoadFromOffset(type, arm::R5, arm::PC, 4092); |
| 411 | __ LoadFromOffset(type, arm::R6, arm::PC, 1); // Unaligned |
| 412 | |
| 413 | const char* expected = |
| 414 | "ldr r0, [pc, #0]\n" |
| 415 | "ldr r1, [pc, #124]\n" |
| 416 | "ldr r2, [pc, #128]\n" |
| 417 | "ldr r3, [pc, #1020]\n" |
| 418 | "ldr.w r4, [pc, #1024]\n" |
| 419 | "ldr.w r5, [pc, #4092]\n" |
| 420 | "ldr.w r6, [pc, #1]\n"; |
| 421 | DriverStr(expected, "LoadWordFromPcPlusOffset"); |
| 422 | } |
| 423 | |
Roland Levillain | c5a5ac6 | 2015-04-02 15:49:24 +0100 | [diff] [blame] | 424 | TEST_F(AssemblerThumb2Test, StoreWordToThumbOffset) { |
| 425 | arm::StoreOperandType type = arm::kStoreWord; |
| 426 | int32_t offset = 4092; |
| 427 | ASSERT_TRUE(arm::Address::CanHoldStoreOffsetThumb(type, offset)); |
| 428 | |
| 429 | __ StoreToOffset(type, arm::R0, arm::SP, offset); |
| 430 | __ StoreToOffset(type, arm::IP, arm::SP, offset); |
| 431 | __ StoreToOffset(type, arm::IP, arm::R5, offset); |
| 432 | |
| 433 | const char* expected = |
| 434 | "str r0, [sp, #4092]\n" |
| 435 | "str ip, [sp, #4092]\n" |
| 436 | "str ip, [r5, #4092]\n"; |
| 437 | DriverStr(expected, "StoreWordToThumbOffset"); |
| 438 | } |
| 439 | |
| 440 | TEST_F(AssemblerThumb2Test, StoreWordToNonThumbOffset) { |
| 441 | arm::StoreOperandType type = arm::kStoreWord; |
| 442 | int32_t offset = 4096; |
| 443 | ASSERT_FALSE(arm::Address::CanHoldStoreOffsetThumb(type, offset)); |
| 444 | |
| 445 | __ StoreToOffset(type, arm::R0, arm::SP, offset); |
| 446 | __ StoreToOffset(type, arm::IP, arm::SP, offset); |
| 447 | __ StoreToOffset(type, arm::IP, arm::R5, offset); |
| 448 | |
| 449 | const char* expected = |
Vladimir Marko | 6fd0ffe | 2015-11-19 21:13:52 +0000 | [diff] [blame] | 450 | "add.w ip, sp, #4096\n" // AddConstant(ip, sp, 4096) |
Roland Levillain | c5a5ac6 | 2015-04-02 15:49:24 +0100 | [diff] [blame] | 451 | "str r0, [ip, #0]\n" |
| 452 | |
Vladimir Marko | 6fd0ffe | 2015-11-19 21:13:52 +0000 | [diff] [blame] | 453 | "str r5, [sp, #-4]!\n" // Push(r5) |
| 454 | "add.w r5, sp, #4096\n" // AddConstant(r5, 4100 & ~0xfff) |
| 455 | "str ip, [r5, #4]\n" // StoreToOffset(type, ip, r5, 4100 & 0xfff) |
| 456 | "ldr r5, [sp], #4\n" // Pop(r5) |
Roland Levillain | c5a5ac6 | 2015-04-02 15:49:24 +0100 | [diff] [blame] | 457 | |
Vladimir Marko | 6fd0ffe | 2015-11-19 21:13:52 +0000 | [diff] [blame] | 458 | "str r6, [sp, #-4]!\n" // Push(r6) |
| 459 | "add.w r6, r5, #4096\n" // AddConstant(r6, r5, 4096 & ~0xfff) |
| 460 | "str ip, [r6, #0]\n" // StoreToOffset(type, ip, r6, 4096 & 0xfff) |
| 461 | "ldr r6, [sp], #4\n"; // Pop(r6) |
Roland Levillain | c5a5ac6 | 2015-04-02 15:49:24 +0100 | [diff] [blame] | 462 | DriverStr(expected, "StoreWordToNonThumbOffset"); |
| 463 | } |
| 464 | |
Roland Levillain | 4af147e | 2015-04-07 13:54:49 +0100 | [diff] [blame] | 465 | TEST_F(AssemblerThumb2Test, StoreWordPairToThumbOffset) { |
| 466 | arm::StoreOperandType type = arm::kStoreWordPair; |
| 467 | int32_t offset = 1020; |
| 468 | ASSERT_TRUE(arm::Address::CanHoldStoreOffsetThumb(type, offset)); |
| 469 | |
| 470 | __ StoreToOffset(type, arm::R0, arm::SP, offset); |
| 471 | // We cannot use IP (i.e. R12) as first source register, as it would |
| 472 | // force us to use SP (i.e. R13) as second source register, which |
| 473 | // would have an "unpredictable" effect according to the ARMv7 |
| 474 | // specification (the T1 encoding describes the result as |
| 475 | // UNPREDICTABLE when of the source registers is R13). |
| 476 | // |
| 477 | // So we use (R11, IP) (e.g. (R11, R12)) as source registers in the |
| 478 | // following instructions. |
| 479 | __ StoreToOffset(type, arm::R11, arm::SP, offset); |
| 480 | __ StoreToOffset(type, arm::R11, arm::R5, offset); |
| 481 | |
| 482 | const char* expected = |
| 483 | "strd r0, r1, [sp, #1020]\n" |
| 484 | "strd r11, ip, [sp, #1020]\n" |
| 485 | "strd r11, ip, [r5, #1020]\n"; |
| 486 | DriverStr(expected, "StoreWordPairToThumbOffset"); |
| 487 | } |
| 488 | |
| 489 | TEST_F(AssemblerThumb2Test, StoreWordPairToNonThumbOffset) { |
| 490 | arm::StoreOperandType type = arm::kStoreWordPair; |
| 491 | int32_t offset = 1024; |
| 492 | ASSERT_FALSE(arm::Address::CanHoldStoreOffsetThumb(type, offset)); |
| 493 | |
| 494 | __ StoreToOffset(type, arm::R0, arm::SP, offset); |
| 495 | // Same comment as in AssemblerThumb2Test.StoreWordPairToThumbOffset |
| 496 | // regarding the use of (R11, IP) (e.g. (R11, R12)) as source |
| 497 | // registers in the following instructions. |
| 498 | __ StoreToOffset(type, arm::R11, arm::SP, offset); |
| 499 | __ StoreToOffset(type, arm::R11, arm::R5, offset); |
| 500 | |
| 501 | const char* expected = |
Vladimir Marko | 6fd0ffe | 2015-11-19 21:13:52 +0000 | [diff] [blame] | 502 | "add.w ip, sp, #1024\n" // AddConstant(ip, sp, 1024) |
Roland Levillain | 4af147e | 2015-04-07 13:54:49 +0100 | [diff] [blame] | 503 | "strd r0, r1, [ip, #0]\n" |
| 504 | |
| 505 | "str r5, [sp, #-4]!\n" // Push(r5) |
Vladimir Marko | 6fd0ffe | 2015-11-19 21:13:52 +0000 | [diff] [blame] | 506 | "add.w r5, sp, #1024\n" // AddConstant(r5, sp, (1024 + kRegisterSize) & ~0x3fc) |
| 507 | "strd r11, ip, [r5, #4]\n" // StoreToOffset(type, r11, sp, (1024 + kRegisterSize) & 0x3fc) |
Roland Levillain | 4af147e | 2015-04-07 13:54:49 +0100 | [diff] [blame] | 508 | "ldr r5, [sp], #4\n" // Pop(r5) |
| 509 | |
| 510 | "str r6, [sp, #-4]!\n" // Push(r6) |
Vladimir Marko | 6fd0ffe | 2015-11-19 21:13:52 +0000 | [diff] [blame] | 511 | "add.w r6, r5, #1024\n" // AddConstant(r6, r5, 1024 & ~0x3fc) |
| 512 | "strd r11, ip, [r6, #0]\n" // StoreToOffset(type, r11, r6, 1024 & 0x3fc) |
Roland Levillain | 4af147e | 2015-04-07 13:54:49 +0100 | [diff] [blame] | 513 | "ldr r6, [sp], #4\n"; // Pop(r6) |
| 514 | DriverStr(expected, "StoreWordPairToNonThumbOffset"); |
| 515 | } |
| 516 | |
Vladimir Marko | a64f249 | 2016-04-25 12:43:50 +0000 | [diff] [blame] | 517 | TEST_F(AssemblerThumb2Test, DistantBackBranch) { |
| 518 | Label start, end; |
| 519 | __ Bind(&start); |
| 520 | constexpr size_t kLdrR0R0Count1 = 256; |
| 521 | for (size_t i = 0; i != kLdrR0R0Count1; ++i) { |
| 522 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 523 | } |
| 524 | __ b(&end, arm::EQ); |
| 525 | __ b(&start, arm::LT); |
| 526 | constexpr size_t kLdrR0R0Count2 = 256; |
| 527 | for (size_t i = 0; i != kLdrR0R0Count2; ++i) { |
| 528 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 529 | } |
| 530 | __ Bind(&end); |
| 531 | |
| 532 | std::string expected = |
| 533 | "0:\n" + |
| 534 | RepeatInsn(kLdrR0R0Count1, "ldr r0, [r0]\n") + |
| 535 | "beq 1f\n" |
| 536 | "blt 0b\n" + |
| 537 | RepeatInsn(kLdrR0R0Count2, "ldr r0, [r0]\n") + |
| 538 | "1:\n"; |
| 539 | DriverStr(expected, "DistantBackBranch"); |
| 540 | } |
| 541 | |
Vladimir Marko | cf93a5c | 2015-06-16 11:33:24 +0000 | [diff] [blame] | 542 | TEST_F(AssemblerThumb2Test, TwoCbzMaxOffset) { |
| 543 | Label label0, label1, label2; |
| 544 | __ cbz(arm::R0, &label1); |
| 545 | constexpr size_t kLdrR0R0Count1 = 63; |
| 546 | for (size_t i = 0; i != kLdrR0R0Count1; ++i) { |
| 547 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 548 | } |
| 549 | __ Bind(&label0); |
| 550 | __ cbz(arm::R0, &label2); |
| 551 | __ Bind(&label1); |
| 552 | constexpr size_t kLdrR0R0Count2 = 64; |
| 553 | for (size_t i = 0; i != kLdrR0R0Count2; ++i) { |
| 554 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 555 | } |
| 556 | __ Bind(&label2); |
| 557 | |
| 558 | std::string expected = |
| 559 | "cbz r0, 1f\n" + // cbz r0, label1 |
| 560 | RepeatInsn(kLdrR0R0Count1, "ldr r0, [r0]\n") + |
| 561 | "0:\n" |
| 562 | "cbz r0, 2f\n" // cbz r0, label2 |
| 563 | "1:\n" + |
| 564 | RepeatInsn(kLdrR0R0Count2, "ldr r0, [r0]\n") + |
| 565 | "2:\n"; |
| 566 | DriverStr(expected, "TwoCbzMaxOffset"); |
| 567 | |
| 568 | EXPECT_EQ(static_cast<uint32_t>(label0.Position()) + 0u, |
| 569 | __ GetAdjustedPosition(label0.Position())); |
| 570 | EXPECT_EQ(static_cast<uint32_t>(label1.Position()) + 0u, |
| 571 | __ GetAdjustedPosition(label1.Position())); |
| 572 | EXPECT_EQ(static_cast<uint32_t>(label2.Position()) + 0u, |
| 573 | __ GetAdjustedPosition(label2.Position())); |
| 574 | } |
| 575 | |
| 576 | TEST_F(AssemblerThumb2Test, TwoCbzBeyondMaxOffset) { |
| 577 | Label label0, label1, label2; |
| 578 | __ cbz(arm::R0, &label1); |
| 579 | constexpr size_t kLdrR0R0Count1 = 63; |
| 580 | for (size_t i = 0; i != kLdrR0R0Count1; ++i) { |
| 581 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 582 | } |
| 583 | __ Bind(&label0); |
| 584 | __ cbz(arm::R0, &label2); |
| 585 | __ Bind(&label1); |
| 586 | constexpr size_t kLdrR0R0Count2 = 65; |
| 587 | for (size_t i = 0; i != kLdrR0R0Count2; ++i) { |
| 588 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 589 | } |
| 590 | __ Bind(&label2); |
| 591 | |
| 592 | std::string expected = |
| 593 | "cmp r0, #0\n" // cbz r0, label1 |
| 594 | "beq.n 1f\n" + |
| 595 | RepeatInsn(kLdrR0R0Count1, "ldr r0, [r0]\n") + |
| 596 | "0:\n" |
| 597 | "cmp r0, #0\n" // cbz r0, label2 |
| 598 | "beq.n 2f\n" |
| 599 | "1:\n" + |
| 600 | RepeatInsn(kLdrR0R0Count2, "ldr r0, [r0]\n") + |
| 601 | "2:\n"; |
| 602 | DriverStr(expected, "TwoCbzBeyondMaxOffset"); |
| 603 | |
| 604 | EXPECT_EQ(static_cast<uint32_t>(label0.Position()) + 2u, |
| 605 | __ GetAdjustedPosition(label0.Position())); |
| 606 | EXPECT_EQ(static_cast<uint32_t>(label1.Position()) + 4u, |
| 607 | __ GetAdjustedPosition(label1.Position())); |
| 608 | EXPECT_EQ(static_cast<uint32_t>(label2.Position()) + 4u, |
| 609 | __ GetAdjustedPosition(label2.Position())); |
| 610 | } |
| 611 | |
| 612 | TEST_F(AssemblerThumb2Test, TwoCbzSecondAtMaxB16Offset) { |
| 613 | Label label0, label1, label2; |
| 614 | __ cbz(arm::R0, &label1); |
| 615 | constexpr size_t kLdrR0R0Count1 = 62; |
| 616 | for (size_t i = 0; i != kLdrR0R0Count1; ++i) { |
| 617 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 618 | } |
| 619 | __ Bind(&label0); |
| 620 | __ cbz(arm::R0, &label2); |
| 621 | __ Bind(&label1); |
| 622 | constexpr size_t kLdrR0R0Count2 = 128; |
| 623 | for (size_t i = 0; i != kLdrR0R0Count2; ++i) { |
| 624 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 625 | } |
| 626 | __ Bind(&label2); |
| 627 | |
| 628 | std::string expected = |
| 629 | "cbz r0, 1f\n" + // cbz r0, label1 |
| 630 | RepeatInsn(kLdrR0R0Count1, "ldr r0, [r0]\n") + |
| 631 | "0:\n" |
| 632 | "cmp r0, #0\n" // cbz r0, label2 |
| 633 | "beq.n 2f\n" |
| 634 | "1:\n" + |
| 635 | RepeatInsn(kLdrR0R0Count2, "ldr r0, [r0]\n") + |
| 636 | "2:\n"; |
| 637 | DriverStr(expected, "TwoCbzSecondAtMaxB16Offset"); |
| 638 | |
| 639 | EXPECT_EQ(static_cast<uint32_t>(label0.Position()) + 0u, |
| 640 | __ GetAdjustedPosition(label0.Position())); |
| 641 | EXPECT_EQ(static_cast<uint32_t>(label1.Position()) + 2u, |
| 642 | __ GetAdjustedPosition(label1.Position())); |
| 643 | EXPECT_EQ(static_cast<uint32_t>(label2.Position()) + 2u, |
| 644 | __ GetAdjustedPosition(label2.Position())); |
| 645 | } |
| 646 | |
| 647 | TEST_F(AssemblerThumb2Test, TwoCbzSecondBeyondMaxB16Offset) { |
| 648 | Label label0, label1, label2; |
| 649 | __ cbz(arm::R0, &label1); |
| 650 | constexpr size_t kLdrR0R0Count1 = 62; |
| 651 | for (size_t i = 0; i != kLdrR0R0Count1; ++i) { |
| 652 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 653 | } |
| 654 | __ Bind(&label0); |
| 655 | __ cbz(arm::R0, &label2); |
| 656 | __ Bind(&label1); |
| 657 | constexpr size_t kLdrR0R0Count2 = 129; |
| 658 | for (size_t i = 0; i != kLdrR0R0Count2; ++i) { |
| 659 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 660 | } |
| 661 | __ Bind(&label2); |
| 662 | |
| 663 | std::string expected = |
| 664 | "cmp r0, #0\n" // cbz r0, label1 |
| 665 | "beq.n 1f\n" + |
| 666 | RepeatInsn(kLdrR0R0Count1, "ldr r0, [r0]\n") + |
| 667 | "0:\n" |
| 668 | "cmp r0, #0\n" // cbz r0, label2 |
| 669 | "beq.w 2f\n" |
| 670 | "1:\n" + |
| 671 | RepeatInsn(kLdrR0R0Count2, "ldr r0, [r0]\n") + |
| 672 | "2:\n"; |
| 673 | DriverStr(expected, "TwoCbzSecondBeyondMaxB16Offset"); |
| 674 | |
| 675 | EXPECT_EQ(static_cast<uint32_t>(label0.Position()) + 2u, |
| 676 | __ GetAdjustedPosition(label0.Position())); |
| 677 | EXPECT_EQ(static_cast<uint32_t>(label1.Position()) + 6u, |
| 678 | __ GetAdjustedPosition(label1.Position())); |
| 679 | EXPECT_EQ(static_cast<uint32_t>(label2.Position()) + 6u, |
| 680 | __ GetAdjustedPosition(label2.Position())); |
| 681 | } |
| 682 | |
| 683 | TEST_F(AssemblerThumb2Test, TwoCbzFirstAtMaxB16Offset) { |
| 684 | Label label0, label1, label2; |
| 685 | __ cbz(arm::R0, &label1); |
| 686 | constexpr size_t kLdrR0R0Count1 = 127; |
| 687 | for (size_t i = 0; i != kLdrR0R0Count1; ++i) { |
| 688 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 689 | } |
| 690 | __ Bind(&label0); |
| 691 | __ cbz(arm::R0, &label2); |
| 692 | __ Bind(&label1); |
| 693 | constexpr size_t kLdrR0R0Count2 = 64; |
| 694 | for (size_t i = 0; i != kLdrR0R0Count2; ++i) { |
| 695 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 696 | } |
| 697 | __ Bind(&label2); |
| 698 | |
| 699 | std::string expected = |
| 700 | "cmp r0, #0\n" // cbz r0, label1 |
| 701 | "beq.n 1f\n" + |
| 702 | RepeatInsn(kLdrR0R0Count1, "ldr r0, [r0]\n") + |
| 703 | "0:\n" |
| 704 | "cbz r0, 2f\n" // cbz r0, label2 |
| 705 | "1:\n" + |
| 706 | RepeatInsn(kLdrR0R0Count2, "ldr r0, [r0]\n") + |
| 707 | "2:\n"; |
| 708 | DriverStr(expected, "TwoCbzFirstAtMaxB16Offset"); |
| 709 | |
| 710 | EXPECT_EQ(static_cast<uint32_t>(label0.Position()) + 2u, |
| 711 | __ GetAdjustedPosition(label0.Position())); |
| 712 | EXPECT_EQ(static_cast<uint32_t>(label1.Position()) + 2u, |
| 713 | __ GetAdjustedPosition(label1.Position())); |
| 714 | EXPECT_EQ(static_cast<uint32_t>(label2.Position()) + 2u, |
| 715 | __ GetAdjustedPosition(label2.Position())); |
| 716 | } |
| 717 | |
| 718 | TEST_F(AssemblerThumb2Test, TwoCbzFirstBeyondMaxB16Offset) { |
| 719 | Label label0, label1, label2; |
| 720 | __ cbz(arm::R0, &label1); |
| 721 | constexpr size_t kLdrR0R0Count1 = 127; |
| 722 | for (size_t i = 0; i != kLdrR0R0Count1; ++i) { |
| 723 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 724 | } |
| 725 | __ Bind(&label0); |
| 726 | __ cbz(arm::R0, &label2); |
| 727 | __ Bind(&label1); |
| 728 | constexpr size_t kLdrR0R0Count2 = 65; |
| 729 | for (size_t i = 0; i != kLdrR0R0Count2; ++i) { |
| 730 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 731 | } |
| 732 | __ Bind(&label2); |
| 733 | |
| 734 | std::string expected = |
| 735 | "cmp r0, #0\n" // cbz r0, label1 |
| 736 | "beq.w 1f\n" + |
| 737 | RepeatInsn(kLdrR0R0Count1, "ldr r0, [r0]\n") + |
| 738 | "0:\n" |
| 739 | "cmp r0, #0\n" // cbz r0, label2 |
| 740 | "beq.n 2f\n" |
| 741 | "1:\n" + |
| 742 | RepeatInsn(kLdrR0R0Count2, "ldr r0, [r0]\n") + |
| 743 | "2:\n"; |
| 744 | DriverStr(expected, "TwoCbzFirstBeyondMaxB16Offset"); |
| 745 | |
| 746 | EXPECT_EQ(static_cast<uint32_t>(label0.Position()) + 4u, |
| 747 | __ GetAdjustedPosition(label0.Position())); |
| 748 | EXPECT_EQ(static_cast<uint32_t>(label1.Position()) + 6u, |
| 749 | __ GetAdjustedPosition(label1.Position())); |
| 750 | EXPECT_EQ(static_cast<uint32_t>(label2.Position()) + 6u, |
| 751 | __ GetAdjustedPosition(label2.Position())); |
| 752 | } |
| 753 | |
| 754 | TEST_F(AssemblerThumb2Test, LoadLiteralMax1KiB) { |
| 755 | arm::Literal* literal = __ NewLiteral<int32_t>(0x12345678); |
| 756 | __ LoadLiteral(arm::R0, literal); |
| 757 | Label label; |
| 758 | __ Bind(&label); |
| 759 | constexpr size_t kLdrR0R0Count = 511; |
| 760 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 761 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 762 | } |
| 763 | |
| 764 | std::string expected = |
| 765 | "1:\n" |
| 766 | "ldr.n r0, [pc, #((2f - 1b - 2) & ~2)]\n" + |
| 767 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 768 | ".align 2, 0\n" |
| 769 | "2:\n" |
| 770 | ".word 0x12345678\n"; |
| 771 | DriverStr(expected, "LoadLiteralMax1KiB"); |
| 772 | |
| 773 | EXPECT_EQ(static_cast<uint32_t>(label.Position()) + 0u, |
| 774 | __ GetAdjustedPosition(label.Position())); |
| 775 | } |
| 776 | |
| 777 | TEST_F(AssemblerThumb2Test, LoadLiteralBeyondMax1KiB) { |
| 778 | arm::Literal* literal = __ NewLiteral<int32_t>(0x12345678); |
| 779 | __ LoadLiteral(arm::R0, literal); |
| 780 | Label label; |
| 781 | __ Bind(&label); |
| 782 | constexpr size_t kLdrR0R0Count = 512; |
| 783 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 784 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 785 | } |
| 786 | |
| 787 | std::string expected = |
| 788 | "1:\n" |
| 789 | "ldr.w r0, [pc, #((2f - 1b - 2) & ~2)]\n" + |
| 790 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 791 | ".align 2, 0\n" |
| 792 | "2:\n" |
| 793 | ".word 0x12345678\n"; |
| 794 | DriverStr(expected, "LoadLiteralBeyondMax1KiB"); |
| 795 | |
| 796 | EXPECT_EQ(static_cast<uint32_t>(label.Position()) + 2u, |
| 797 | __ GetAdjustedPosition(label.Position())); |
| 798 | } |
| 799 | |
| 800 | TEST_F(AssemblerThumb2Test, LoadLiteralMax4KiB) { |
| 801 | arm::Literal* literal = __ NewLiteral<int32_t>(0x12345678); |
| 802 | __ LoadLiteral(arm::R1, literal); |
| 803 | Label label; |
| 804 | __ Bind(&label); |
| 805 | constexpr size_t kLdrR0R0Count = 2046; |
| 806 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 807 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 808 | } |
| 809 | |
| 810 | std::string expected = |
| 811 | "1:\n" |
| 812 | "ldr.w r1, [pc, #((2f - 1b - 2) & ~2)]\n" + |
| 813 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 814 | ".align 2, 0\n" |
| 815 | "2:\n" |
| 816 | ".word 0x12345678\n"; |
| 817 | DriverStr(expected, "LoadLiteralMax4KiB"); |
| 818 | |
| 819 | EXPECT_EQ(static_cast<uint32_t>(label.Position()) + 2u, |
| 820 | __ GetAdjustedPosition(label.Position())); |
| 821 | } |
| 822 | |
| 823 | TEST_F(AssemblerThumb2Test, LoadLiteralBeyondMax4KiB) { |
| 824 | arm::Literal* literal = __ NewLiteral<int32_t>(0x12345678); |
| 825 | __ LoadLiteral(arm::R1, literal); |
| 826 | Label label; |
| 827 | __ Bind(&label); |
| 828 | constexpr size_t kLdrR0R0Count = 2047; |
| 829 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 830 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 831 | } |
| 832 | |
| 833 | std::string expected = |
| 834 | "movw r1, #4096\n" // "as" does not consider (2f - 1f - 4) a constant expression for movw. |
| 835 | "1:\n" |
| 836 | "add r1, pc\n" |
| 837 | "ldr r1, [r1, #0]\n" + |
| 838 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 839 | ".align 2, 0\n" |
| 840 | "2:\n" |
| 841 | ".word 0x12345678\n"; |
| 842 | DriverStr(expected, "LoadLiteralBeyondMax4KiB"); |
| 843 | |
| 844 | EXPECT_EQ(static_cast<uint32_t>(label.Position()) + 6u, |
| 845 | __ GetAdjustedPosition(label.Position())); |
| 846 | } |
| 847 | |
| 848 | TEST_F(AssemblerThumb2Test, LoadLiteralMax64KiB) { |
| 849 | arm::Literal* literal = __ NewLiteral<int32_t>(0x12345678); |
| 850 | __ LoadLiteral(arm::R1, literal); |
| 851 | Label label; |
| 852 | __ Bind(&label); |
| 853 | constexpr size_t kLdrR0R0Count = (1u << 15) - 2u; |
| 854 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 855 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 856 | } |
| 857 | |
| 858 | std::string expected = |
| 859 | "movw r1, #0xfffc\n" // "as" does not consider (2f - 1f - 4) a constant expression for movw. |
| 860 | "1:\n" |
| 861 | "add r1, pc\n" |
| 862 | "ldr r1, [r1, #0]\n" + |
| 863 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 864 | ".align 2, 0\n" |
| 865 | "2:\n" |
| 866 | ".word 0x12345678\n"; |
| 867 | DriverStr(expected, "LoadLiteralMax64KiB"); |
| 868 | |
| 869 | EXPECT_EQ(static_cast<uint32_t>(label.Position()) + 6u, |
| 870 | __ GetAdjustedPosition(label.Position())); |
| 871 | } |
| 872 | |
| 873 | TEST_F(AssemblerThumb2Test, LoadLiteralBeyondMax64KiB) { |
| 874 | arm::Literal* literal = __ NewLiteral<int32_t>(0x12345678); |
| 875 | __ LoadLiteral(arm::R1, literal); |
| 876 | Label label; |
| 877 | __ Bind(&label); |
| 878 | constexpr size_t kLdrR0R0Count = (1u << 15) - 1u; |
| 879 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 880 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 881 | } |
| 882 | |
| 883 | std::string expected = |
| 884 | "mov.w r1, #((2f - 1f - 4) & ~0xfff)\n" |
| 885 | "1:\n" |
| 886 | "add r1, pc\n" |
| 887 | "ldr r1, [r1, #((2f - 1b - 4) & 0xfff)]\n" + |
| 888 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 889 | ".align 2, 0\n" |
| 890 | "2:\n" |
| 891 | ".word 0x12345678\n"; |
| 892 | DriverStr(expected, "LoadLiteralBeyondMax64KiB"); |
| 893 | |
| 894 | EXPECT_EQ(static_cast<uint32_t>(label.Position()) + 8u, |
| 895 | __ GetAdjustedPosition(label.Position())); |
| 896 | } |
| 897 | |
| 898 | TEST_F(AssemblerThumb2Test, LoadLiteralMax1MiB) { |
| 899 | arm::Literal* literal = __ NewLiteral<int32_t>(0x12345678); |
| 900 | __ LoadLiteral(arm::R1, literal); |
| 901 | Label label; |
| 902 | __ Bind(&label); |
| 903 | constexpr size_t kLdrR0R0Count = (1u << 19) - 3u; |
| 904 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 905 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 906 | } |
| 907 | |
| 908 | std::string expected = |
| 909 | "mov.w r1, #((2f - 1f - 4) & ~0xfff)\n" |
| 910 | "1:\n" |
| 911 | "add r1, pc\n" |
| 912 | "ldr r1, [r1, #((2f - 1b - 4) & 0xfff)]\n" + |
| 913 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 914 | ".align 2, 0\n" |
| 915 | "2:\n" |
| 916 | ".word 0x12345678\n"; |
| 917 | DriverStr(expected, "LoadLiteralMax1MiB"); |
| 918 | |
| 919 | EXPECT_EQ(static_cast<uint32_t>(label.Position()) + 8u, |
| 920 | __ GetAdjustedPosition(label.Position())); |
| 921 | } |
| 922 | |
| 923 | TEST_F(AssemblerThumb2Test, LoadLiteralBeyondMax1MiB) { |
| 924 | arm::Literal* literal = __ NewLiteral<int32_t>(0x12345678); |
| 925 | __ LoadLiteral(arm::R1, literal); |
| 926 | Label label; |
| 927 | __ Bind(&label); |
| 928 | constexpr size_t kLdrR0R0Count = (1u << 19) - 2u; |
| 929 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 930 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 931 | } |
| 932 | |
| 933 | std::string expected = |
| 934 | // "as" does not consider ((2f - 1f - 4) & 0xffff) a constant expression for movw. |
| 935 | "movw r1, #(0x100000 & 0xffff)\n" |
| 936 | // "as" does not consider ((2f - 1f - 4) >> 16) a constant expression for movt. |
| 937 | "movt r1, #(0x100000 >> 16)\n" |
| 938 | "1:\n" |
| 939 | "add r1, pc\n" |
| 940 | "ldr.w r1, [r1, #0]\n" + |
| 941 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 942 | ".align 2, 0\n" |
| 943 | "2:\n" |
| 944 | ".word 0x12345678\n"; |
| 945 | DriverStr(expected, "LoadLiteralBeyondMax1MiB"); |
| 946 | |
| 947 | EXPECT_EQ(static_cast<uint32_t>(label.Position()) + 12u, |
| 948 | __ GetAdjustedPosition(label.Position())); |
| 949 | } |
| 950 | |
| 951 | TEST_F(AssemblerThumb2Test, LoadLiteralFar) { |
| 952 | arm::Literal* literal = __ NewLiteral<int32_t>(0x12345678); |
| 953 | __ LoadLiteral(arm::R1, literal); |
| 954 | Label label; |
| 955 | __ Bind(&label); |
| 956 | constexpr size_t kLdrR0R0Count = (1u << 19) - 2u + 0x1234; |
| 957 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 958 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 959 | } |
| 960 | |
| 961 | std::string expected = |
| 962 | // "as" does not consider ((2f - 1f - 4) & 0xffff) a constant expression for movw. |
| 963 | "movw r1, #((0x100000 + 2 * 0x1234) & 0xffff)\n" |
| 964 | // "as" does not consider ((2f - 1f - 4) >> 16) a constant expression for movt. |
| 965 | "movt r1, #((0x100000 + 2 * 0x1234) >> 16)\n" |
| 966 | "1:\n" |
| 967 | "add r1, pc\n" |
| 968 | "ldr.w r1, [r1, #0]\n" + |
| 969 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 970 | ".align 2, 0\n" |
| 971 | "2:\n" |
| 972 | ".word 0x12345678\n"; |
| 973 | DriverStr(expected, "LoadLiteralFar"); |
| 974 | |
| 975 | EXPECT_EQ(static_cast<uint32_t>(label.Position()) + 12u, |
| 976 | __ GetAdjustedPosition(label.Position())); |
| 977 | } |
| 978 | |
| 979 | TEST_F(AssemblerThumb2Test, LoadLiteralWideMax1KiB) { |
| 980 | arm::Literal* literal = __ NewLiteral<int64_t>(INT64_C(0x1234567887654321)); |
| 981 | __ LoadLiteral(arm::R1, arm::R3, literal); |
| 982 | Label label; |
| 983 | __ Bind(&label); |
| 984 | constexpr size_t kLdrR0R0Count = 510; |
| 985 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 986 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 987 | } |
| 988 | |
| 989 | std::string expected = |
| 990 | "1:\n" |
| 991 | "ldrd r1, r3, [pc, #((2f - 1b - 2) & ~2)]\n" + |
| 992 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 993 | ".align 2, 0\n" |
| 994 | "2:\n" |
| 995 | ".word 0x87654321\n" |
| 996 | ".word 0x12345678\n"; |
| 997 | DriverStr(expected, "LoadLiteralWideMax1KiB"); |
| 998 | |
| 999 | EXPECT_EQ(static_cast<uint32_t>(label.Position()) + 0u, |
| 1000 | __ GetAdjustedPosition(label.Position())); |
| 1001 | } |
| 1002 | |
| 1003 | TEST_F(AssemblerThumb2Test, LoadLiteralWideBeyondMax1KiB) { |
| 1004 | arm::Literal* literal = __ NewLiteral<int64_t>(INT64_C(0x1234567887654321)); |
| 1005 | __ LoadLiteral(arm::R1, arm::R3, literal); |
| 1006 | Label label; |
| 1007 | __ Bind(&label); |
| 1008 | constexpr size_t kLdrR0R0Count = 511; |
| 1009 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1010 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1011 | } |
| 1012 | |
| 1013 | std::string expected = |
Vladimir Marko | ebdbf4b | 2016-07-07 15:37:02 +0100 | [diff] [blame] | 1014 | // "as" does not consider ((2f - 1f - 4) & 0xffff) a constant expression for movw. |
| 1015 | "movw ip, #(0x408 - 0x4 - 4)\n" |
Vladimir Marko | cf93a5c | 2015-06-16 11:33:24 +0000 | [diff] [blame] | 1016 | "1:\n" |
| 1017 | "add ip, pc\n" |
Vladimir Marko | ebdbf4b | 2016-07-07 15:37:02 +0100 | [diff] [blame] | 1018 | "ldrd r1, r3, [ip, #0]\n" + |
Vladimir Marko | cf93a5c | 2015-06-16 11:33:24 +0000 | [diff] [blame] | 1019 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1020 | ".align 2, 0\n" |
| 1021 | "2:\n" |
| 1022 | ".word 0x87654321\n" |
| 1023 | ".word 0x12345678\n"; |
| 1024 | DriverStr(expected, "LoadLiteralWideBeyondMax1KiB"); |
| 1025 | |
| 1026 | EXPECT_EQ(static_cast<uint32_t>(label.Position()) + 6u, |
| 1027 | __ GetAdjustedPosition(label.Position())); |
| 1028 | } |
| 1029 | |
Vladimir Marko | ebdbf4b | 2016-07-07 15:37:02 +0100 | [diff] [blame] | 1030 | TEST_F(AssemblerThumb2Test, LoadLiteralSingleMax64KiB) { |
Vladimir Marko | cf93a5c | 2015-06-16 11:33:24 +0000 | [diff] [blame] | 1031 | // The literal size must match but the type doesn't, so use an int32_t rather than float. |
| 1032 | arm::Literal* literal = __ NewLiteral<int32_t>(0x12345678); |
| 1033 | __ LoadLiteral(arm::S3, literal); |
| 1034 | Label label; |
| 1035 | __ Bind(&label); |
Vladimir Marko | ebdbf4b | 2016-07-07 15:37:02 +0100 | [diff] [blame] | 1036 | constexpr size_t kLdrR0R0Count = (1 << 15) - 3u; |
Vladimir Marko | cf93a5c | 2015-06-16 11:33:24 +0000 | [diff] [blame] | 1037 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1038 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1039 | } |
| 1040 | |
| 1041 | std::string expected = |
| 1042 | // "as" does not consider ((2f - 1f - 4) & 0xffff) a constant expression for movw. |
Vladimir Marko | ebdbf4b | 2016-07-07 15:37:02 +0100 | [diff] [blame] | 1043 | "movw ip, #(0x10004 - 0x4 - 4)\n" |
| 1044 | "1:\n" |
| 1045 | "add ip, pc\n" |
| 1046 | "vldr s3, [ip, #0]\n" + |
| 1047 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1048 | ".align 2, 0\n" |
| 1049 | "2:\n" |
| 1050 | ".word 0x12345678\n"; |
| 1051 | DriverStr(expected, "LoadLiteralSingleMax64KiB"); |
| 1052 | |
| 1053 | EXPECT_EQ(static_cast<uint32_t>(label.Position()) + 6u, |
| 1054 | __ GetAdjustedPosition(label.Position())); |
| 1055 | } |
| 1056 | |
| 1057 | TEST_F(AssemblerThumb2Test, LoadLiteralSingleMax64KiB_UnalignedPC) { |
| 1058 | // The literal size must match but the type doesn't, so use an int32_t rather than float. |
| 1059 | arm::Literal* literal = __ NewLiteral<int32_t>(0x12345678); |
| 1060 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1061 | __ LoadLiteral(arm::S3, literal); |
| 1062 | Label label; |
| 1063 | __ Bind(&label); |
| 1064 | constexpr size_t kLdrR0R0Count = (1 << 15) - 4u; |
| 1065 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1066 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1067 | } |
| 1068 | |
| 1069 | std::string expected = |
| 1070 | "ldr r0, [r0]\n" |
| 1071 | // "as" does not consider ((2f - 1f - 4) & 0xffff) a constant expression for movw. |
| 1072 | "movw ip, #(0x10004 - 0x6 - 4)\n" |
| 1073 | "1:\n" |
| 1074 | "add ip, pc\n" |
| 1075 | "vldr s3, [ip, #0]\n" + |
| 1076 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1077 | ".align 2, 0\n" |
| 1078 | "2:\n" |
| 1079 | ".word 0x12345678\n"; |
| 1080 | DriverStr(expected, "LoadLiteralSingleMax64KiB_UnalignedPC"); |
| 1081 | |
| 1082 | EXPECT_EQ(static_cast<uint32_t>(label.Position()) + 6u, |
| 1083 | __ GetAdjustedPosition(label.Position())); |
| 1084 | } |
| 1085 | |
| 1086 | TEST_F(AssemblerThumb2Test, LoadLiteralDoubleBeyondMax64KiB) { |
| 1087 | // The literal size must match but the type doesn't, so use an int64_t rather than double. |
| 1088 | arm::Literal* literal = __ NewLiteral<int64_t>(INT64_C(0x1234567887654321)); |
| 1089 | __ LoadLiteral(arm::D3, literal); |
| 1090 | Label label; |
| 1091 | __ Bind(&label); |
| 1092 | constexpr size_t kLdrR0R0Count = (1 << 15) - 2u; |
| 1093 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1094 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1095 | } |
| 1096 | |
| 1097 | std::string expected = |
| 1098 | // "as" does not consider ((2f - 1f - 4) & 0xffff) a constant expression for movw. |
| 1099 | "movw ip, #((0x1000c - 0x8 - 4) & 0xffff)\n" |
Vladimir Marko | cf93a5c | 2015-06-16 11:33:24 +0000 | [diff] [blame] | 1100 | // "as" does not consider ((2f - 1f - 4) >> 16) a constant expression for movt. |
Vladimir Marko | ebdbf4b | 2016-07-07 15:37:02 +0100 | [diff] [blame] | 1101 | "movt ip, #((0x1000c - 0x8 - 4) >> 16)\n" |
Vladimir Marko | cf93a5c | 2015-06-16 11:33:24 +0000 | [diff] [blame] | 1102 | "1:\n" |
| 1103 | "add ip, pc\n" |
| 1104 | "vldr d3, [ip, #0]\n" + |
| 1105 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1106 | ".align 2, 0\n" |
| 1107 | "2:\n" |
| 1108 | ".word 0x87654321\n" |
| 1109 | ".word 0x12345678\n"; |
Vladimir Marko | ebdbf4b | 2016-07-07 15:37:02 +0100 | [diff] [blame] | 1110 | DriverStr(expected, "LoadLiteralDoubleBeyondMax64KiB"); |
Vladimir Marko | cf93a5c | 2015-06-16 11:33:24 +0000 | [diff] [blame] | 1111 | |
| 1112 | EXPECT_EQ(static_cast<uint32_t>(label.Position()) + 10u, |
| 1113 | __ GetAdjustedPosition(label.Position())); |
| 1114 | } |
| 1115 | |
| 1116 | TEST_F(AssemblerThumb2Test, LoadLiteralDoubleFar) { |
| 1117 | // The literal size must match but the type doesn't, so use an int64_t rather than double. |
| 1118 | arm::Literal* literal = __ NewLiteral<int64_t>(INT64_C(0x1234567887654321)); |
| 1119 | __ LoadLiteral(arm::D3, literal); |
| 1120 | Label label; |
| 1121 | __ Bind(&label); |
Vladimir Marko | ebdbf4b | 2016-07-07 15:37:02 +0100 | [diff] [blame] | 1122 | constexpr size_t kLdrR0R0Count = (1 << 15) - 2u + 0x1234; |
Vladimir Marko | cf93a5c | 2015-06-16 11:33:24 +0000 | [diff] [blame] | 1123 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1124 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1125 | } |
| 1126 | |
| 1127 | std::string expected = |
| 1128 | // "as" does not consider ((2f - 1f - 4) & 0xffff) a constant expression for movw. |
Vladimir Marko | ebdbf4b | 2016-07-07 15:37:02 +0100 | [diff] [blame] | 1129 | "movw ip, #((0x1000c + 2 * 0x1234 - 0x8 - 4) & 0xffff)\n" |
Vladimir Marko | cf93a5c | 2015-06-16 11:33:24 +0000 | [diff] [blame] | 1130 | // "as" does not consider ((2f - 1f - 4) >> 16) a constant expression for movt. |
Vladimir Marko | ebdbf4b | 2016-07-07 15:37:02 +0100 | [diff] [blame] | 1131 | "movt ip, #((0x1000c + 2 * 0x1234 - 0x8 - 4) >> 16)\n" |
Vladimir Marko | cf93a5c | 2015-06-16 11:33:24 +0000 | [diff] [blame] | 1132 | "1:\n" |
| 1133 | "add ip, pc\n" |
| 1134 | "vldr d3, [ip, #0]\n" + |
| 1135 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1136 | ".align 2, 0\n" |
| 1137 | "2:\n" |
| 1138 | ".word 0x87654321\n" |
| 1139 | ".word 0x12345678\n"; |
| 1140 | DriverStr(expected, "LoadLiteralDoubleFar"); |
| 1141 | |
| 1142 | EXPECT_EQ(static_cast<uint32_t>(label.Position()) + 10u, |
| 1143 | __ GetAdjustedPosition(label.Position())); |
| 1144 | } |
| 1145 | |
Vladimir Marko | 663c934 | 2015-07-22 11:28:14 +0100 | [diff] [blame] | 1146 | TEST_F(AssemblerThumb2Test, LoadLiteralBeyondMax1KiBDueToAlignmentOnSecondPass) { |
| 1147 | // First part: as TwoCbzBeyondMaxOffset but add one 16-bit instruction to the end, |
| 1148 | // so that the size is not Aligned<4>(.). On the first pass, the assembler resizes |
| 1149 | // the second CBZ because it's out of range, then it will resize the first CBZ |
| 1150 | // which has been pushed out of range. Thus, after the first pass, the code size |
| 1151 | // will appear Aligned<4>(.) but the final size will not be. |
| 1152 | Label label0, label1, label2; |
| 1153 | __ cbz(arm::R0, &label1); |
| 1154 | constexpr size_t kLdrR0R0Count1 = 63; |
| 1155 | for (size_t i = 0; i != kLdrR0R0Count1; ++i) { |
| 1156 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1157 | } |
| 1158 | __ Bind(&label0); |
| 1159 | __ cbz(arm::R0, &label2); |
| 1160 | __ Bind(&label1); |
| 1161 | constexpr size_t kLdrR0R0Count2 = 65; |
| 1162 | for (size_t i = 0; i != kLdrR0R0Count2; ++i) { |
| 1163 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1164 | } |
| 1165 | __ Bind(&label2); |
| 1166 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1167 | |
| 1168 | std::string expected_part1 = |
| 1169 | "cmp r0, #0\n" // cbz r0, label1 |
| 1170 | "beq.n 1f\n" + |
| 1171 | RepeatInsn(kLdrR0R0Count1, "ldr r0, [r0]\n") + |
| 1172 | "0:\n" |
| 1173 | "cmp r0, #0\n" // cbz r0, label2 |
| 1174 | "beq.n 2f\n" |
| 1175 | "1:\n" + |
| 1176 | RepeatInsn(kLdrR0R0Count2, "ldr r0, [r0]\n") + |
| 1177 | "2:\n" // Here the offset is Aligned<4>(.). |
| 1178 | "ldr r0, [r0]\n"; // Make the first part |
| 1179 | |
| 1180 | // Second part: as LoadLiteralMax1KiB with the caveat that the offset of the load |
| 1181 | // literal will not be Aligned<4>(.) but it will appear to be when we process the |
| 1182 | // instruction during the first pass, so the literal will need a padding and it |
| 1183 | // will push the literal out of range, so we shall end up with "ldr.w". |
| 1184 | arm::Literal* literal = __ NewLiteral<int32_t>(0x12345678); |
| 1185 | __ LoadLiteral(arm::R0, literal); |
| 1186 | Label label; |
| 1187 | __ Bind(&label); |
| 1188 | constexpr size_t kLdrR0R0Count = 511; |
| 1189 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1190 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1191 | } |
| 1192 | |
| 1193 | std::string expected = |
| 1194 | expected_part1 + |
| 1195 | "1:\n" |
| 1196 | "ldr.w r0, [pc, #((2f - 1b - 2) & ~2)]\n" + |
| 1197 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1198 | ".align 2, 0\n" |
| 1199 | "2:\n" |
| 1200 | ".word 0x12345678\n"; |
| 1201 | DriverStr(expected, "LoadLiteralMax1KiB"); |
| 1202 | |
| 1203 | EXPECT_EQ(static_cast<uint32_t>(label.Position()) + 6u, |
| 1204 | __ GetAdjustedPosition(label.Position())); |
| 1205 | } |
| 1206 | |
Andreas Gampe | 7cffc3b | 2015-10-19 21:31:53 -0700 | [diff] [blame] | 1207 | TEST_F(AssemblerThumb2Test, BindTrackedLabel) { |
| 1208 | Label non_tracked, tracked, branch_target; |
| 1209 | |
| 1210 | // A few dummy loads on entry. |
| 1211 | constexpr size_t kLdrR0R0Count = 5; |
| 1212 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1213 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1214 | } |
| 1215 | |
| 1216 | // A branch that will need to be fixed up. |
| 1217 | __ cbz(arm::R0, &branch_target); |
| 1218 | |
| 1219 | // Some more dummy loads. |
| 1220 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1221 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1222 | } |
| 1223 | |
| 1224 | // Now insert tracked and untracked label. |
| 1225 | __ Bind(&non_tracked); |
| 1226 | __ BindTrackedLabel(&tracked); |
| 1227 | |
| 1228 | // A lot of dummy loads, to ensure the branch needs resizing. |
| 1229 | constexpr size_t kLdrR0R0CountLong = 60; |
| 1230 | for (size_t i = 0; i != kLdrR0R0CountLong; ++i) { |
| 1231 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1232 | } |
| 1233 | |
| 1234 | // Bind the branch target. |
| 1235 | __ Bind(&branch_target); |
| 1236 | |
| 1237 | // One more load. |
| 1238 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1239 | |
| 1240 | std::string expected = |
| 1241 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1242 | "cmp r0, #0\n" // cbz r0, 1f |
| 1243 | "beq.n 1f\n" + |
| 1244 | RepeatInsn(kLdrR0R0Count + kLdrR0R0CountLong, "ldr r0, [r0]\n") + |
| 1245 | "1:\n" |
| 1246 | "ldr r0, [r0]\n"; |
| 1247 | DriverStr(expected, "BindTrackedLabel"); |
| 1248 | |
| 1249 | // Expectation is that the tracked label should have moved. |
| 1250 | EXPECT_LT(non_tracked.Position(), tracked.Position()); |
| 1251 | } |
| 1252 | |
| 1253 | TEST_F(AssemblerThumb2Test, JumpTable) { |
| 1254 | // The jump table. Use three labels. |
| 1255 | Label label1, label2, label3; |
| 1256 | std::vector<Label*> labels({ &label1, &label2, &label3 }); |
| 1257 | |
| 1258 | // A few dummy loads on entry, interspersed with 2 labels. |
| 1259 | constexpr size_t kLdrR0R0Count = 5; |
| 1260 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1261 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1262 | } |
| 1263 | __ BindTrackedLabel(&label1); |
| 1264 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1265 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1266 | } |
| 1267 | __ BindTrackedLabel(&label2); |
| 1268 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1269 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1270 | } |
| 1271 | |
| 1272 | // Create the jump table, emit the base load. |
| 1273 | arm::JumpTable* jump_table = __ CreateJumpTable(std::move(labels), arm::R1); |
| 1274 | |
| 1275 | // Dummy computation, stand-in for the address. We're only testing the jump table here, not how |
| 1276 | // it's being used. |
| 1277 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1278 | |
| 1279 | // Emit the jump |
| 1280 | __ EmitJumpTableDispatch(jump_table, arm::R1); |
| 1281 | |
| 1282 | // Some more dummy instructions. |
| 1283 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1284 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1285 | } |
| 1286 | __ BindTrackedLabel(&label3); |
| 1287 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { // Note: odd so there's no alignment |
| 1288 | __ ldr(arm::R0, arm::Address(arm::R0)); // necessary, as gcc as emits nops, |
| 1289 | } // whereas we emit 0 != nop. |
| 1290 | |
| 1291 | static_assert((kLdrR0R0Count + 3) * 2 < 1 * KB, "Too much offset"); |
| 1292 | |
| 1293 | std::string expected = |
| 1294 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1295 | ".L1:\n" + |
| 1296 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1297 | ".L2:\n" + |
| 1298 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1299 | "adr r1, .Ljump_table\n" |
| 1300 | "ldr r0, [r0]\n" |
| 1301 | ".Lbase:\n" |
| 1302 | "add pc, r1\n" + |
| 1303 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1304 | ".L3:\n" + |
| 1305 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1306 | ".align 2\n" |
| 1307 | ".Ljump_table:\n" |
| 1308 | ".4byte (.L1 - .Lbase - 4)\n" |
| 1309 | ".4byte (.L2 - .Lbase - 4)\n" |
| 1310 | ".4byte (.L3 - .Lbase - 4)\n"; |
| 1311 | DriverStr(expected, "JumpTable"); |
| 1312 | } |
| 1313 | |
| 1314 | // Test for >1K fixup. |
| 1315 | TEST_F(AssemblerThumb2Test, JumpTable4K) { |
| 1316 | // The jump table. Use three labels. |
| 1317 | Label label1, label2, label3; |
| 1318 | std::vector<Label*> labels({ &label1, &label2, &label3 }); |
| 1319 | |
| 1320 | // A few dummy loads on entry, interspersed with 2 labels. |
| 1321 | constexpr size_t kLdrR0R0Count = 5; |
| 1322 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1323 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1324 | } |
| 1325 | __ BindTrackedLabel(&label1); |
| 1326 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1327 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1328 | } |
| 1329 | __ BindTrackedLabel(&label2); |
| 1330 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1331 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1332 | } |
| 1333 | |
| 1334 | // Create the jump table, emit the base load. |
| 1335 | arm::JumpTable* jump_table = __ CreateJumpTable(std::move(labels), arm::R1); |
| 1336 | |
| 1337 | // Dummy computation, stand-in for the address. We're only testing the jump table here, not how |
| 1338 | // it's being used. |
| 1339 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1340 | |
| 1341 | // Emit the jump |
| 1342 | __ EmitJumpTableDispatch(jump_table, arm::R1); |
| 1343 | |
| 1344 | // Some more dummy instructions. |
| 1345 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1346 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1347 | } |
| 1348 | __ BindTrackedLabel(&label3); |
| 1349 | constexpr size_t kLdrR0R0Count2 = 600; // Note: even so there's no alignment |
| 1350 | for (size_t i = 0; i != kLdrR0R0Count2; ++i) { // necessary, as gcc as emits nops, |
| 1351 | __ ldr(arm::R0, arm::Address(arm::R0)); // whereas we emit 0 != nop. |
| 1352 | } |
| 1353 | |
| 1354 | static_assert((kLdrR0R0Count + kLdrR0R0Count2 + 3) * 2 > 1 * KB, "Not enough offset"); |
| 1355 | static_assert((kLdrR0R0Count + kLdrR0R0Count2 + 3) * 2 < 4 * KB, "Too much offset"); |
| 1356 | |
| 1357 | std::string expected = |
| 1358 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1359 | ".L1:\n" + |
| 1360 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1361 | ".L2:\n" + |
| 1362 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1363 | "adr r1, .Ljump_table\n" |
| 1364 | "ldr r0, [r0]\n" |
| 1365 | ".Lbase:\n" |
| 1366 | "add pc, r1\n" + |
| 1367 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1368 | ".L3:\n" + |
| 1369 | RepeatInsn(kLdrR0R0Count2, "ldr r0, [r0]\n") + |
| 1370 | ".align 2\n" |
| 1371 | ".Ljump_table:\n" |
| 1372 | ".4byte (.L1 - .Lbase - 4)\n" |
| 1373 | ".4byte (.L2 - .Lbase - 4)\n" |
| 1374 | ".4byte (.L3 - .Lbase - 4)\n"; |
| 1375 | DriverStr(expected, "JumpTable4K"); |
| 1376 | } |
| 1377 | |
| 1378 | // Test for >4K fixup. |
| 1379 | TEST_F(AssemblerThumb2Test, JumpTable64K) { |
| 1380 | // The jump table. Use three labels. |
| 1381 | Label label1, label2, label3; |
| 1382 | std::vector<Label*> labels({ &label1, &label2, &label3 }); |
| 1383 | |
| 1384 | // A few dummy loads on entry, interspersed with 2 labels. |
| 1385 | constexpr size_t kLdrR0R0Count = 5; |
| 1386 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1387 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1388 | } |
| 1389 | __ BindTrackedLabel(&label1); |
| 1390 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1391 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1392 | } |
| 1393 | __ BindTrackedLabel(&label2); |
| 1394 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1395 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1396 | } |
| 1397 | |
| 1398 | // Create the jump table, emit the base load. |
| 1399 | arm::JumpTable* jump_table = __ CreateJumpTable(std::move(labels), arm::R1); |
| 1400 | |
| 1401 | // Dummy computation, stand-in for the address. We're only testing the jump table here, not how |
| 1402 | // it's being used. |
| 1403 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1404 | |
| 1405 | // Emit the jump |
| 1406 | __ EmitJumpTableDispatch(jump_table, arm::R1); |
| 1407 | |
| 1408 | // Some more dummy instructions. |
| 1409 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1410 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1411 | } |
| 1412 | __ BindTrackedLabel(&label3); |
| 1413 | constexpr size_t kLdrR0R0Count2 = 2601; // Note: odd so there's no alignment |
| 1414 | for (size_t i = 0; i != kLdrR0R0Count2; ++i) { // necessary, as gcc as emits nops, |
| 1415 | __ ldr(arm::R0, arm::Address(arm::R0)); // whereas we emit 0 != nop. |
| 1416 | } |
| 1417 | |
| 1418 | static_assert((kLdrR0R0Count + kLdrR0R0Count2 + 3) * 2 > 4 * KB, "Not enough offset"); |
| 1419 | static_assert((kLdrR0R0Count + kLdrR0R0Count2 + 3) * 2 < 64 * KB, "Too much offset"); |
| 1420 | |
| 1421 | std::string expected = |
| 1422 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1423 | ".L1:\n" + |
| 1424 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1425 | ".L2:\n" + |
| 1426 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1427 | // ~ adr r1, .Ljump_table, gcc as can't seem to fix up a large offset itself. |
| 1428 | // (Note: have to use constants, as labels aren't accepted. |
| 1429 | "movw r1, #(((3 + " + StringPrintf("%zu", kLdrR0R0Count + kLdrR0R0Count2) + |
| 1430 | ") * 2 - 4) & 0xFFFF)\n" |
| 1431 | "add r1, pc\n" |
| 1432 | "ldr r0, [r0]\n" |
| 1433 | ".Lbase:\n" |
| 1434 | "add pc, r1\n" + |
| 1435 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1436 | ".L3:\n" + |
| 1437 | RepeatInsn(kLdrR0R0Count2, "ldr r0, [r0]\n") + |
| 1438 | ".align 2\n" |
| 1439 | ".Ljump_table:\n" |
| 1440 | ".4byte (.L1 - .Lbase - 4)\n" |
| 1441 | ".4byte (.L2 - .Lbase - 4)\n" |
| 1442 | ".4byte (.L3 - .Lbase - 4)\n"; |
| 1443 | DriverStr(expected, "JumpTable64K"); |
| 1444 | } |
| 1445 | |
| 1446 | // Test for >64K fixup. |
| 1447 | TEST_F(AssemblerThumb2Test, JumpTableFar) { |
| 1448 | // The jump table. Use three labels. |
| 1449 | Label label1, label2, label3; |
| 1450 | std::vector<Label*> labels({ &label1, &label2, &label3 }); |
| 1451 | |
| 1452 | // A few dummy loads on entry, interspersed with 2 labels. |
| 1453 | constexpr size_t kLdrR0R0Count = 5; |
| 1454 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1455 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1456 | } |
| 1457 | __ BindTrackedLabel(&label1); |
| 1458 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1459 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1460 | } |
| 1461 | __ BindTrackedLabel(&label2); |
| 1462 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1463 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1464 | } |
| 1465 | |
| 1466 | // Create the jump table, emit the base load. |
| 1467 | arm::JumpTable* jump_table = __ CreateJumpTable(std::move(labels), arm::R1); |
| 1468 | |
| 1469 | // Dummy computation, stand-in for the address. We're only testing the jump table here, not how |
| 1470 | // it's being used. |
| 1471 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1472 | |
| 1473 | // Emit the jump |
| 1474 | __ EmitJumpTableDispatch(jump_table, arm::R1); |
| 1475 | |
| 1476 | // Some more dummy instructions. |
| 1477 | for (size_t i = 0; i != kLdrR0R0Count; ++i) { |
| 1478 | __ ldr(arm::R0, arm::Address(arm::R0)); |
| 1479 | } |
| 1480 | __ BindTrackedLabel(&label3); |
| 1481 | constexpr size_t kLdrR0R0Count2 = 70001; // Note: odd so there's no alignment |
| 1482 | for (size_t i = 0; i != kLdrR0R0Count2; ++i) { // necessary, as gcc as emits nops, |
| 1483 | __ ldr(arm::R0, arm::Address(arm::R0)); // whereas we emit 0 != nop. |
| 1484 | } |
| 1485 | |
| 1486 | static_assert((kLdrR0R0Count + kLdrR0R0Count2 + 3) * 2 > 64 * KB, "Not enough offset"); |
| 1487 | |
| 1488 | std::string expected = |
| 1489 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1490 | ".L1:\n" + |
| 1491 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1492 | ".L2:\n" + |
| 1493 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1494 | // ~ adr r1, .Ljump_table, gcc as can't seem to fix up a large offset itself. |
| 1495 | // (Note: have to use constants, as labels aren't accepted. |
| 1496 | "movw r1, #(((3 + " + StringPrintf("%zu", kLdrR0R0Count + kLdrR0R0Count2) + |
| 1497 | ") * 2 - 4) & 0xFFFF)\n" |
| 1498 | "movt r1, #(((3 + " + StringPrintf("%zu", kLdrR0R0Count + kLdrR0R0Count2) + |
| 1499 | ") * 2 - 4) >> 16)\n" |
| 1500 | ".Lhelp:" |
| 1501 | "add r1, pc\n" |
| 1502 | "ldr r0, [r0]\n" |
| 1503 | ".Lbase:\n" |
| 1504 | "add pc, r1\n" + |
| 1505 | RepeatInsn(kLdrR0R0Count, "ldr r0, [r0]\n") + |
| 1506 | ".L3:\n" + |
| 1507 | RepeatInsn(kLdrR0R0Count2, "ldr r0, [r0]\n") + |
| 1508 | ".align 2\n" |
| 1509 | ".Ljump_table:\n" |
| 1510 | ".4byte (.L1 - .Lbase - 4)\n" |
| 1511 | ".4byte (.L2 - .Lbase - 4)\n" |
| 1512 | ".4byte (.L3 - .Lbase - 4)\n"; |
| 1513 | DriverStr(expected, "JumpTableFar"); |
| 1514 | } |
| 1515 | |
Scott Wakeling | 611d339 | 2015-07-10 11:42:06 +0100 | [diff] [blame] | 1516 | TEST_F(AssemblerThumb2Test, Clz) { |
| 1517 | __ clz(arm::R0, arm::R1); |
| 1518 | |
| 1519 | const char* expected = "clz r0, r1\n"; |
| 1520 | |
| 1521 | DriverStr(expected, "clz"); |
| 1522 | } |
| 1523 | |
Scott Wakeling | 9ee23f4 | 2015-07-23 10:44:35 +0100 | [diff] [blame] | 1524 | TEST_F(AssemblerThumb2Test, rbit) { |
| 1525 | __ rbit(arm::R1, arm::R0); |
| 1526 | |
| 1527 | const char* expected = "rbit r1, r0\n"; |
| 1528 | |
| 1529 | DriverStr(expected, "rbit"); |
| 1530 | } |
| 1531 | |
Artem Serov | c257da7 | 2016-02-02 13:49:43 +0000 | [diff] [blame] | 1532 | TEST_F(AssemblerThumb2Test, rev) { |
| 1533 | __ rev(arm::R1, arm::R0); |
| 1534 | |
| 1535 | const char* expected = "rev r1, r0\n"; |
| 1536 | |
| 1537 | DriverStr(expected, "rev"); |
| 1538 | } |
| 1539 | |
| 1540 | TEST_F(AssemblerThumb2Test, rev16) { |
| 1541 | __ rev16(arm::R1, arm::R0); |
| 1542 | |
| 1543 | const char* expected = "rev16 r1, r0\n"; |
| 1544 | |
| 1545 | DriverStr(expected, "rev16"); |
| 1546 | } |
| 1547 | |
| 1548 | TEST_F(AssemblerThumb2Test, revsh) { |
| 1549 | __ revsh(arm::R1, arm::R0); |
| 1550 | |
| 1551 | const char* expected = "revsh r1, r0\n"; |
| 1552 | |
| 1553 | DriverStr(expected, "revsh"); |
| 1554 | } |
| 1555 | |
xueliang.zhong | e652c12 | 2016-06-13 14:42:27 +0100 | [diff] [blame] | 1556 | TEST_F(AssemblerThumb2Test, vcnt) { |
| 1557 | // Different D register numbers are used here, to test register encoding. |
| 1558 | // Source register number is encoded as M:Vm, destination register number is encoded as D:Vd, |
| 1559 | // For source and destination registers which use D0..D15, the M bit and D bit should be 0. |
| 1560 | // For source and destination registers which use D16..D32, the M bit and D bit should be 1. |
| 1561 | __ vcntd(arm::D0, arm::D1); |
| 1562 | __ vcntd(arm::D19, arm::D20); |
| 1563 | __ vcntd(arm::D0, arm::D9); |
| 1564 | __ vcntd(arm::D16, arm::D20); |
| 1565 | |
| 1566 | std::string expected = |
| 1567 | "vcnt.8 d0, d1\n" |
| 1568 | "vcnt.8 d19, d20\n" |
| 1569 | "vcnt.8 d0, d9\n" |
| 1570 | "vcnt.8 d16, d20\n"; |
| 1571 | |
| 1572 | DriverStr(expected, "vcnt"); |
| 1573 | } |
| 1574 | |
| 1575 | TEST_F(AssemblerThumb2Test, vpaddl) { |
| 1576 | // Different D register numbers are used here, to test register encoding. |
| 1577 | // Source register number is encoded as M:Vm, destination register number is encoded as D:Vd, |
| 1578 | // For source and destination registers which use D0..D15, the M bit and D bit should be 0. |
| 1579 | // For source and destination registers which use D16..D32, the M bit and D bit should be 1. |
| 1580 | // Different data types (signed and unsigned) are also tested. |
| 1581 | __ vpaddld(arm::D0, arm::D0, 8, true); |
| 1582 | __ vpaddld(arm::D20, arm::D20, 8, false); |
| 1583 | __ vpaddld(arm::D0, arm::D20, 16, false); |
| 1584 | __ vpaddld(arm::D20, arm::D0, 32, true); |
| 1585 | |
| 1586 | std::string expected = |
| 1587 | "vpaddl.u8 d0, d0\n" |
| 1588 | "vpaddl.s8 d20, d20\n" |
| 1589 | "vpaddl.s16 d0, d20\n" |
| 1590 | "vpaddl.u32 d20, d0\n"; |
| 1591 | |
| 1592 | DriverStr(expected, "vpaddl"); |
| 1593 | } |
| 1594 | |
Artem Serov | 2e4fcc9 | 2016-07-11 14:00:46 +0100 | [diff] [blame] | 1595 | TEST_F(AssemblerThumb2Test, LoadFromShiftedRegOffset) { |
| 1596 | arm::Address mem_address(arm::R0, arm::R1, arm::Shift::LSL, 2); |
| 1597 | |
| 1598 | __ ldrsb(arm::R2, mem_address); |
| 1599 | __ ldrb(arm::R2, mem_address); |
| 1600 | __ ldrsh(arm::R2, mem_address); |
| 1601 | __ ldrh(arm::R2, mem_address); |
| 1602 | __ ldr(arm::R2, mem_address); |
| 1603 | |
| 1604 | std::string expected = |
| 1605 | "ldrsb r2, [r0, r1, LSL #2]\n" |
| 1606 | "ldrb r2, [r0, r1, LSL #2]\n" |
| 1607 | "ldrsh r2, [r0, r1, LSL #2]\n" |
| 1608 | "ldrh r2, [r0, r1, LSL #2]\n" |
| 1609 | "ldr r2, [r0, r1, LSL #2]\n"; |
| 1610 | |
| 1611 | DriverStr(expected, "LoadFromShiftedRegOffset"); |
| 1612 | } |
| 1613 | |
Artem Serov | cb3cf4a | 2016-07-15 15:01:13 +0100 | [diff] [blame^] | 1614 | TEST_F(AssemblerThumb2Test, VStmLdmPushPop) { |
| 1615 | // Different D register numbers are used here, to test register encoding. |
| 1616 | // Source register number is encoded as M:Vm, destination register number is encoded as D:Vd, |
| 1617 | // For source and destination registers which use D0..D15, the M bit and D bit should be 0. |
| 1618 | // For source and destination registers which use D16..D32, the M bit and D bit should be 1. |
| 1619 | // Different data types (signed and unsigned) are also tested. |
| 1620 | __ vstmiad(arm::R0, arm::D0, 4); |
| 1621 | __ vldmiad(arm::R1, arm::D9, 5); |
| 1622 | __ vpopd(arm::D0, 4); |
| 1623 | __ vpushd(arm::D9, 5); |
| 1624 | __ vpops(arm::S0, 4); |
| 1625 | __ vpushs(arm::S9, 5); |
| 1626 | __ vpushs(arm::S16, 5); |
| 1627 | __ vpushd(arm::D0, 16); |
| 1628 | __ vpushd(arm::D1, 15); |
| 1629 | __ vpushd(arm::D8, 16); |
| 1630 | __ vpushd(arm::D31, 1); |
| 1631 | __ vpushs(arm::S0, 32); |
| 1632 | __ vpushs(arm::S1, 31); |
| 1633 | __ vpushs(arm::S16, 16); |
| 1634 | __ vpushs(arm::S31, 1); |
| 1635 | |
| 1636 | std::string expected = |
| 1637 | "vstmia r0, {d0 - d3}\n" |
| 1638 | "vldmia r1, {d9 - d13}\n" |
| 1639 | "vpop {d0 - d3}\n" |
| 1640 | "vpush {d9 - d13}\n" |
| 1641 | "vpop {s0 - s3}\n" |
| 1642 | "vpush {s9 - s13}\n" |
| 1643 | "vpush {s16 - s20}\n" |
| 1644 | "vpush {d0 - d15}\n" |
| 1645 | "vpush {d1 - d15}\n" |
| 1646 | "vpush {d8 - d23}\n" |
| 1647 | "vpush {d31}\n" |
| 1648 | "vpush {s0 - s31}\n" |
| 1649 | "vpush {s1 - s31}\n" |
| 1650 | "vpush {s16 - s31}\n" |
| 1651 | "vpush {s31}\n"; |
| 1652 | |
| 1653 | DriverStr(expected, "VStmLdmPushPop"); |
| 1654 | } |
| 1655 | |
Roland Levillain | 1a28fc4 | 2014-11-13 18:03:06 +0000 | [diff] [blame] | 1656 | } // namespace art |