clang/test/CodeGen/arm64-microsoft-intrinsics.c

   1 // RUN: %clang_cc1 -triple arm64-windows -Wno-implicit-function-declaration -fms-compatibility -emit-llvm -o - %s \
   2 // RUN:    | FileCheck %s --check-prefix=CHECK-MSVC --check-prefix=CHECK-MSCOMPAT
   3
   4 // RUN: not %clang_cc1 -triple arm64-linux -Werror -S -o /dev/null %s 2>&1 \
   5 // RUN:    | FileCheck %s -check-prefix CHECK-LINUX
   6
   7 // RUN: %clang_cc1 -triple arm64-darwin -Wno-implicit-function-declaration -fms-compatibility -emit-llvm -o - %s \
   8 // RUN:    | FileCheck %s -check-prefix CHECK-MSCOMPAT
   9
  10 long test_InterlockedAdd(long volatile *Addend, long Value) {
  11   return _InterlockedAdd(Addend, Value);
  12 }
  13
  14 long test_InterlockedAdd_constant(long volatile *Addend) {
  15   return _InterlockedAdd(Addend, -1);
  16 }
  17
  18 // CHECK-LABEL: define {{.*}} i32 @test_InterlockedAdd(ptr %Addend, i32 %Value) {{.*}} {
  19 // CHECK-MSVC: %[[OLDVAL:[0-9]+]] = atomicrmw add ptr %1, i32 %2 seq_cst, align 4
  20 // CHECK-MSVC: %[[NEWVAL:[0-9]+]] = add i32 %[[OLDVAL:[0-9]+]], %2
  21 // CHECK-MSVC: ret i32 %[[NEWVAL:[0-9]+]]
  22 // CHECK-LINUX: error: call to undeclared function '_InterlockedAdd'
  23
  24 void check__dmb(void) {
  25   __dmb(0);
  26 }
  27
  28 // CHECK-MSVC: @llvm.aarch64.dmb(i32 0)
  29 // CHECK-LINUX: error: call to undeclared function '__dmb'
  30
  31 void check__dsb(void) {
  32   __dsb(0);
  33 }
  34
  35 // CHECK-MSVC: @llvm.aarch64.dsb(i32 0)
  36 // CHECK-LINUX: error: call to undeclared function '__dsb'
  37
  38 void check__isb(void) {
  39   __isb(0);
  40 }
  41
  42 // CHECK-MSVC: @llvm.aarch64.isb(i32 0)
  43 // CHECK-LINUX: error: call to undeclared function '__isb'
  44
  45 void check__yield(void) {
  46   __yield();
  47 }
  48
  49 // CHECK-MSVC: @llvm.aarch64.hint(i32 1)
  50 // CHECK-LINUX: error: call to undeclared function '__yield'
  51
  52 void check__wfe(void) {
  53   __wfe();
  54 }
  55
  56 // CHECK-MSVC: @llvm.aarch64.hint(i32 2)
  57 // CHECK-LINUX: error: call to undeclared function '__wfe'
  58
  59 void check__wfi(void) {
  60   __wfi();
  61 }
  62
  63 // CHECK-MSVC: @llvm.aarch64.hint(i32 3)
  64 // CHECK-LINUX: error: call to undeclared function '__wfi'
  65
  66 void check__sev(void) {
  67   __sev();
  68 }
  69
  70 // CHECK-MSVC: @llvm.aarch64.hint(i32 4)
  71 // CHECK-LINUX: error: call to undeclared function '__sev'
  72
  73 void check__sevl(void) {
  74   __sevl();
  75 }
  76
  77 // CHECK-MSVC: @llvm.aarch64.hint(i32 5)
  78 // CHECK-LINUX: error: call to undeclared function '__sevl'
  79
  80 void check_ReadWriteBarrier(void) {
  81   _ReadWriteBarrier();
  82 }
  83
  84 // CHECK-MSVC: fence syncscope("singlethread")
  85 // CHECK-LINUX: error: call to undeclared function '_ReadWriteBarrier'
  86
  87 long long check_mulh(long long a, long long b) {
  88   return __mulh(a, b);
  89 }
  90
  91 // CHECK-MSVC: %[[ARG1:.*]] = sext i64 {{.*}} to i128
  92 // CHECK-MSVC: %[[ARG2:.*]] = sext i64 {{.*}} to i128
  93 // CHECK-MSVC: %[[PROD:.*]] = mul nsw i128 %[[ARG1]], %[[ARG2]]
  94 // CHECK-MSVC: %[[HIGH:.*]] = ashr i128 %[[PROD]], 64
  95 // CHECK-MSVC: %[[RES:.*]] = trunc i128 %[[HIGH]] to i64
  96 // CHECK-LINUX: error: call to undeclared function '__mulh'
  97
  98 unsigned long long check_umulh(unsigned long long a, unsigned long long b) {
  99   return __umulh(a, b);
 100 }
 101
 102 // CHECK-MSVC: %[[ARG1:.*]] = zext i64 {{.*}} to i128
 103 // CHECK-MSVC: %[[ARG2:.*]] = zext i64 {{.*}} to i128
 104 // CHECK-MSVC: %[[PROD:.*]] = mul nuw i128 %[[ARG1]], %[[ARG2]]
 105 // CHECK-MSVC: %[[HIGH:.*]] = lshr i128 %[[PROD]], 64
 106 // CHECK-MSVC: %[[RES:.*]] = trunc i128 %[[HIGH]] to i64
 107 // CHECK-LINUX: error: call to undeclared function '__umulh'
 108
 109 void check__break() {
 110   __break(0);
 111 }
 112
 113 // CHECK-MSVC: call void @llvm.aarch64.break(i32 0)
 114 // CHECK-LINUX: error: call to undeclared function '__break'
 115
 116 unsigned __int64 check__getReg(void) {
 117   unsigned volatile __int64 reg;
 118   reg = __getReg(18);
 119   reg = __getReg(31);
 120   return reg;
 121 }
 122
 123 // CHECK-MSCOMPAT: call i64 @llvm.read_register.i64(metadata ![[MD2:.*]])
 124 // CHECK-MSCOMPAT: call i64 @llvm.read_register.i64(metadata ![[MD3:.*]])
 125
 126 #ifdef __LP64__
 127 #define LONG __int32
 128 #else
 129 #define LONG long
 130 #endif
 131
 132 #ifdef __LP64__
 133 void check__writex18byte(unsigned char data, unsigned LONG offset) {
 134 #else
 135 void check__writex18byte(unsigned LONG offset, unsigned char data) {
 136 #endif
 137   __writex18byte(offset, data);
 138 }
 139
 140 // CHECK-MSCOMPAT: %[[DATA_ADDR:.*]] = alloca i8, align 1
 141 // CHECK-MSCOMPAT: %[[OFFSET_ADDR:.*]] = alloca i32, align 4
 142 // CHECK-MSCOMPAT: store i8 %data, ptr %[[DATA_ADDR]], align 1
 143 // CHECK-MSCOMPAT: store i32 %offset, ptr %[[OFFSET_ADDR]], align 4
 144 // CHECK-MSCOMPAT: %[[X18:.*]] = call i64 @llvm.read_register.i64(metadata ![[MD2]])
 145 // CHECK-MSCOMPAT: %[[X18_AS_PTR:.*]] = inttoptr i64 %[[X18]] to ptr
 146 // CHECK-MSCOMPAT: %[[OFFSET:.*]] = load i32, ptr %[[OFFSET_ADDR]], align 4
 147 // CHECK-MSCOMPAT: %[[ZEXT_OFFSET:.*]] = zext i32 %[[OFFSET]] to i64
 148 // CHECK-MSCOMPAT: %[[PTR:.*]] = getelementptr i8, ptr %[[X18_AS_PTR]], i64 %[[ZEXT_OFFSET]]
 149 // CHECK-MSCOMPAT: %[[DATA:.*]] = load i8, ptr %[[DATA_ADDR]], align 1
 150 // CHECK-MSCOMPAT: store i8 %[[DATA]], ptr %[[PTR]], align 1
 151
 152 #ifdef __LP64__
 153 void check__writex18word(unsigned short data, unsigned LONG offset) {
 154 #else
 155 void check__writex18word(unsigned LONG offset, unsigned short data) {
 156 #endif
 157   __writex18word(offset, data);
 158 }
 159
 160 // CHECK-MSCOMPAT: %[[DATA_ADDR:.*]] = alloca i16, align 2
 161 // CHECK-MSCOMPAT: %[[OFFSET_ADDR:.*]] = alloca i32, align 4
 162 // CHECK-MSCOMPAT: store i16 %data, ptr %[[DATA_ADDR]], align 2
 163 // CHECK-MSCOMPAT: store i32 %offset, ptr %[[OFFSET_ADDR]], align 4
 164 // CHECK-MSCOMPAT: %[[X18:.*]] = call i64 @llvm.read_register.i64(metadata ![[MD2]])
 165 // CHECK-MSCOMPAT: %[[X18_AS_PTR:.*]] = inttoptr i64 %[[X18]] to ptr
 166 // CHECK-MSCOMPAT: %[[OFFSET:.*]] = load i32, ptr %[[OFFSET_ADDR]], align 4
 167 // CHECK-MSCOMPAT: %[[ZEXT_OFFSET:.*]] = zext i32 %[[OFFSET]] to i64
 168 // CHECK-MSCOMPAT: %[[PTR:.*]] = getelementptr i8, ptr %[[X18_AS_PTR]], i64 %[[ZEXT_OFFSET]]
 169 // CHECK-MSCOMPAT: %[[DATA:.*]] = load i16, ptr %[[DATA_ADDR]], align 2
 170 // CHECK-MSCOMPAT: store i16 %[[DATA]], ptr %[[PTR]], align 1
 171
 172 #ifdef __LP64__
 173 void check__writex18dword(unsigned LONG data, unsigned LONG offset) {
 174 #else
 175 void check__writex18dword(unsigned LONG offset, unsigned LONG data) {
 176 #endif
 177   __writex18dword(offset, data);
 178 }
 179
 180 // CHECK-MSCOMPAT: %[[DATA_ADDR:.*]] = alloca i32, align 4
 181 // CHECK-MSCOMPAT: %[[OFFSET_ADDR:.*]] = alloca i32, align 4
 182 // CHECK-MSCOMPAT: store i32 %data, ptr %[[DATA_ADDR]], align 4
 183 // CHECK-MSCOMPAT: store i32 %offset, ptr %[[OFFSET_ADDR]], align 4
 184 // CHECK-MSCOMPAT: %[[X18:.*]] = call i64 @llvm.read_register.i64(metadata ![[MD2]])
 185 // CHECK-MSCOMPAT: %[[X18_AS_PTR:.*]] = inttoptr i64 %[[X18]] to ptr
 186 // CHECK-MSCOMPAT: %[[OFFSET:.*]] = load i32, ptr %[[OFFSET_ADDR]], align 4
 187 // CHECK-MSCOMPAT: %[[ZEXT_OFFSET:.*]] = zext i32 %[[OFFSET]] to i64
 188 // CHECK-MSCOMPAT: %[[PTR:.*]] = getelementptr i8, ptr %[[X18_AS_PTR]], i64 %[[ZEXT_OFFSET]]
 189 // CHECK-MSCOMPAT: %[[DATA:.*]] = load i32, ptr %[[DATA_ADDR]], align 4
 190 // CHECK-MSCOMPAT: store i32 %[[DATA]], ptr %[[PTR]], align 1
 191
 192 #ifdef __LP64__
 193 void check__writex18qword(unsigned __int64 data, unsigned LONG offset) {
 194 #else
 195 void check__writex18qword(unsigned LONG offset, unsigned __int64 data) {
 196 #endif
 197   __writex18qword(offset, data);
 198 }
 199
 200 // CHECK-MSCOMPAT: %[[DATA_ADDR:.*]] = alloca i64, align 8
 201 // CHECK-MSCOMPAT: %[[OFFSET_ADDR:.*]] = alloca i32, align 4
 202 // CHECK-MSCOMPAT: store i64 %data, ptr %[[DATA_ADDR]], align 8
 203 // CHECK-MSCOMPAT: store i32 %offset, ptr %[[OFFSET_ADDR]], align 4
 204 // CHECK-MSCOMPAT: %[[X18:.*]] = call i64 @llvm.read_register.i64(metadata ![[MD2]])
 205 // CHECK-MSCOMPAT: %[[X18_AS_PTR:.*]] = inttoptr i64 %[[X18]] to ptr
 206 // CHECK-MSCOMPAT: %[[OFFSET:.*]] = load i32, ptr %[[OFFSET_ADDR]], align 4
 207 // CHECK-MSCOMPAT: %[[ZEXT_OFFSET:.*]] = zext i32 %[[OFFSET]] to i64
 208 // CHECK-MSCOMPAT: %[[PTR:.*]] = getelementptr i8, ptr %[[X18_AS_PTR]], i64 %[[ZEXT_OFFSET]]
 209 // CHECK-MSCOMPAT: %[[DATA:.*]] = load i64, ptr %[[DATA_ADDR]], align 8
 210 // CHECK-MSCOMPAT: store i64 %[[DATA]], ptr %[[PTR]], align 1
 211
 212 unsigned char check__readx18byte(unsigned LONG offset) {
 213   return __readx18byte(offset);
 214 }
 215
 216 // CHECK-MSCOMPAT: %[[OFFSET_ADDR:.*]] = alloca i32, align 4
 217 // CHECK-MSCOMPAT: store i32 %offset, ptr %[[OFFSET_ADDR]], align 4
 218 // CHECK-MSCOMPAT: %[[X18:.*]] = call i64 @llvm.read_register.i64(metadata ![[MD2]])
 219 // CHECK-MSCOMPAT: %[[X18_AS_PTR:.*]] = inttoptr i64 %[[X18]] to ptr
 220 // CHECK-MSCOMPAT: %[[OFFSET:.*]] = load i32, ptr %[[OFFSET_ADDR]], align 4
 221 // CHECK-MSCOMPAT: %[[ZEXT_OFFSET:.*]] = zext i32 %[[OFFSET]] to i64
 222 // CHECK-MSCOMPAT: %[[PTR:.*]] = getelementptr i8, ptr %[[X18_AS_PTR]], i64 %[[ZEXT_OFFSET]]
 223 // CHECK-MSCOMPAT: %[[RETVAL:.*]] = load i8, ptr %[[PTR]], align 1
 224 // CHECK-MSCOMPAT: ret i8 %[[RETVAL]]
 225
 226 unsigned short check__readx18word(unsigned LONG offset) {
 227   return __readx18word(offset);
 228 }
 229
 230 // CHECK-MSCOMPAT: %[[OFFSET_ADDR:.*]] = alloca i32, align 4
 231 // CHECK-MSCOMPAT: store i32 %offset, ptr %[[OFFSET_ADDR]], align 4
 232 // CHECK-MSCOMPAT: %[[X18:.*]] = call i64 @llvm.read_register.i64(metadata ![[MD2]])
 233 // CHECK-MSCOMPAT: %[[X18_AS_PTR:.*]] = inttoptr i64 %[[X18]] to ptr
 234 // CHECK-MSCOMPAT: %[[OFFSET:.*]] = load i32, ptr %[[OFFSET_ADDR]], align 4
 235 // CHECK-MSCOMPAT: %[[ZEXT_OFFSET:.*]] = zext i32 %[[OFFSET]] to i64
 236 // CHECK-MSCOMPAT: %[[PTR:.*]] = getelementptr i8, ptr %[[X18_AS_PTR]], i64 %[[ZEXT_OFFSET]]
 237 // CHECK-MSCOMPAT: %[[RETVAL:.*]] = load i16, ptr %[[PTR]], align 1
 238 // CHECK-MSCOMPAT: ret i16 %[[RETVAL]]
 239
 240 unsigned LONG check__readx18dword(unsigned LONG offset) {
 241   return __readx18dword(offset);
 242 }
 243
 244 // CHECK-MSCOMPAT: %[[OFFSET_ADDR:.*]] = alloca i32, align 4
 245 // CHECK-MSCOMPAT: store i32 %offset, ptr %[[OFFSET_ADDR]], align 4
 246 // CHECK-MSCOMPAT: %[[X18:.*]] = call i64 @llvm.read_register.i64(metadata ![[MD2]])
 247 // CHECK-MSCOMPAT: %[[X18_AS_PTR:.*]] = inttoptr i64 %[[X18]] to ptr
 248 // CHECK-MSCOMPAT: %[[OFFSET:.*]] = load i32, ptr %[[OFFSET_ADDR]], align 4
 249 // CHECK-MSCOMPAT: %[[ZEXT_OFFSET:.*]] = zext i32 %[[OFFSET]] to i64
 250 // CHECK-MSCOMPAT: %[[PTR:.*]] = getelementptr i8, ptr %[[X18_AS_PTR]], i64 %[[ZEXT_OFFSET]]
 251 // CHECK-MSCOMPAT: %[[RETVAL:.*]] = load i32, ptr %[[PTR]], align 1
 252 // CHECK-MSCOMPAT: ret i32 %[[RETVAL]]
 253
 254 unsigned __int64 check__readx18qword(unsigned LONG offset) {
 255   return __readx18qword(offset);
 256 }
 257
 258 // CHECK-MSCOMPAT: %[[OFFSET_ADDR:.*]] = alloca i32, align 4
 259 // CHECK-MSCOMPAT: store i32 %offset, ptr %[[OFFSET_ADDR]], align 4
 260 // CHECK-MSCOMPAT: %[[X18:.*]] = call i64 @llvm.read_register.i64(metadata ![[MD2]])
 261 // CHECK-MSCOMPAT: %[[X18_AS_PTR:.*]] = inttoptr i64 %[[X18]] to ptr
 262 // CHECK-MSCOMPAT: %[[OFFSET:.*]] = load i32, ptr %[[OFFSET_ADDR]], align 4
 263 // CHECK-MSCOMPAT: %[[ZEXT_OFFSET:.*]] = zext i32 %[[OFFSET]] to i64
 264 // CHECK-MSCOMPAT: %[[PTR:.*]] = getelementptr i8, ptr %[[X18_AS_PTR]], i64 %[[ZEXT_OFFSET]]
 265 // CHECK-MSCOMPAT: %[[RETVAL:.*]] = load i64, ptr %[[PTR]], align 1
 266 // CHECK-MSCOMPAT: ret i64 %[[RETVAL]]
 267
 268 double check__CopyDoubleFromInt64(__int64 arg1) {
 269   return _CopyDoubleFromInt64(arg1);
 270 }
 271
 272 // CHECK-MSCOMPAT: %[[ARG:.*]].addr = alloca i64, align 8
 273 // CHECK-MSCOMPAT: store i64 %[[ARG]], ptr %[[ARG]].addr, align 8
 274 // CHECK-MSCOMPAT: %[[VAR0:.*]] = load i64, ptr %[[ARG]].addr, align 8
 275 // CHECK-MSCOMPAT: %[[VAR1:.*]] = bitcast i64 %[[VAR0]] to double
 276 // CHECK-MSCOMPAT: ret double %[[VAR1]]
 277 // CHECK-LINUX: error: call to undeclared function '_CopyDoubleFromInt64'
 278
 279 float check__CopyFloatFromInt32(__int32 arg1) {
 280   return _CopyFloatFromInt32(arg1);
 281 }
 282
 283 // CHECK-MSCOMPAT: %[[ARG:.*]].addr = alloca i32, align 4
 284 // CHECK-MSCOMPAT: store i32 %[[ARG]], ptr %[[ARG]].addr, align 4
 285 // CHECK-MSCOMPAT: %[[VAR0:.*]] = load i32, ptr %[[ARG]].addr, align 4
 286 // CHECK-MSCOMPAT: %[[VAR1:.*]] = bitcast i32 %[[VAR0]] to float
 287 // CHECK-MSCOMPAT: ret float %[[VAR1]]
 288 // CHECK-LINUX: error: call to undeclared function '_CopyFloatFromInt32'
 289
 290 __int32 check__CopyInt32FromFloat(float arg1) {
 291   return _CopyInt32FromFloat(arg1);
 292 }
 293
 294 // CHECK-MSCOMPAT: %[[ARG:.*]].addr = alloca float, align 4
 295 // CHECK-MSCOMPAT: store float %[[ARG]], ptr %[[ARG]].addr, align 4
 296 // CHECK-MSCOMPAT: %[[VAR0:.*]] = load float, ptr %[[ARG]].addr, align 4
 297 // CHECK-MSCOMPAT: %[[VAR1:.*]] = bitcast float %[[VAR0]] to i32
 298 // CHECK-MSCOMPAT: ret i32 %[[VAR1]]
 299 // CHECK-LINUX: error: call to undeclared function '_CopyInt32FromFloat'
 300
 301 __int64 check__CopyInt64FromDouble(double arg1) {
 302   return _CopyInt64FromDouble(arg1);
 303 }
 304
 305 // CHECK-MSCOMPAT: %[[ARG:.*]].addr = alloca double, align 8
 306 // CHECK-MSCOMPAT: store double %[[ARG]], ptr %[[ARG]].addr, align 8
 307 // CHECK-MSCOMPAT: %[[VAR0:.*]] = load double, ptr %[[ARG]].addr, align 8
 308 // CHECK-MSCOMPAT: %[[VAR1:.*]] = bitcast double %[[VAR0]] to i64
 309 // CHECK-MSCOMPAT: ret i64 %[[VAR1]]
 310 // CHECK-LINUX: error: call to undeclared function '_CopyInt64FromDouble'
 311
 312 unsigned int check__CountLeadingOnes(unsigned LONG arg1) {
 313   return _CountLeadingOnes(arg1);
 314 }
 315
 316 // CHECK-MSCOMPAT: %[[ARG1:.*]].addr = alloca i32, align 4
 317 // CHECK-MSCOMPAT: store i32 %[[ARG1]], ptr %[[ARG1]].addr, align 4
 318 // CHECK-MSCOMPAT: %[[VAR0:.*]] = load i32, ptr %[[ARG1]].addr, align 4
 319 // CHECK-MSCOMPAT: %[[VAR1:.*]] = xor i32 %[[VAR0]], -1
 320 // CHECK-MSCOMPAT: %[[VAR2:.*]] = call i32 @llvm.ctlz.i32(i32 %1, i1 false)
 321 // CHECK-MSCOMPAT: ret i32 %[[VAR2]]
 322 // CHECK-LINUX: error: call to undeclared function '_CountLeadingOnes'
 323
 324 unsigned int check__CountLeadingOnes64(unsigned __int64 arg1) {
 325   return _CountLeadingOnes64(arg1);
 326 }
 327
 328 // CHECK-MSCOMPAT: %[[ARG1:.*]].addr = alloca i64, align 8
 329 // CHECK-MSCOMPAT: store i64 %[[ARG1]], ptr %[[ARG1]].addr, align 8
 330 // CHECK-MSCOMPAT: %[[VAR0:.*]] = load i64, ptr %[[ARG1]].addr, align 8
 331 // CHECK-MSCOMPAT: %[[VAR1:.*]] = xor i64 %[[VAR0]], -1
 332 // CHECK-MSCOMPAT: %[[VAR2:.*]] = call i64 @llvm.ctlz.i64(i64 %1, i1 false)
 333 // CHECK-MSCOMPAT: %[[VAR3:.*]] = trunc i64 %2 to i32
 334 // CHECK-MSCOMPAT: ret i32 %[[VAR3]]
 335 // CHECK-LINUX: error: call to undeclared function '_CountLeadingOnes64'
 336
 337 unsigned int check__CountLeadingSigns(__int32 arg1) {
 338   return _CountLeadingSigns(arg1);
 339 }
 340
 341 // CHECK-MSCOMPAT: %[[ARG1:.*]].addr = alloca i32, align 4
 342 // CHECK-MSCOMPAT: store i32 %[[ARG1]], ptr %[[ARG1]].addr, align 4
 343 // CHECK-MSCOMPAT: %[[VAR0:.*]] = load i32, ptr %[[ARG1]].addr, align 4
 344 // CHECK-MSCOMPAT: %[[CLS:.*]] = call i32 @llvm.aarch64.cls(i32 %[[VAR0]])
 345 // CHECK-MSCOMPAT: ret i32 %[[CLS]]
 346 // CHECK-LINUX: error: call to undeclared function '_CountLeadingSigns'
 347
 348 unsigned int check__CountLeadingSigns64(__int64 arg1) {
 349   return _CountLeadingSigns64(arg1);
 350 }
 351
 352 // CHECK-MSCOMPAT: %[[ARG1:.*]].addr = alloca i64, align 8
 353 // CHECK-MSCOMPAT: store i64 %[[ARG1]], ptr %[[ARG1]].addr, align 8
 354 // CHECK-MSCOMPAT: %[[VAR0:.*]] = load i64, ptr %[[ARG1]].addr, align 8
 355 // CHECK-MSCOMPAT: %[[CLS:.*]] = call i32 @llvm.aarch64.cls64(i64 %[[VAR0]])
 356 // CHECK-MSCOMPAT: ret i32 %[[CLS]]
 357 // CHECK-LINUX: error: call to undeclared function '_CountLeadingSigns64'
 358
 359 unsigned int check__CountLeadingZeros(__int32 arg1) {
 360   return _CountLeadingZeros(arg1);
 361 }
 362
 363 // CHECK-MSCOMPAT: %[[ARG1:.*]].addr = alloca i32, align 4
 364 // CHECK-MSCOMPAT: store i32 %[[ARG1]], ptr %[[ARG1]].addr, align 4
 365 // CHECK-MSCOMPAT: %[[VAR0:.*]] = load i32, ptr %[[ARG1]].addr, align 4
 366 // CHECK-MSCOMPAT: %[[VAR1:.*]] = call i32 @llvm.ctlz.i32(i32 %[[VAR0]], i1 false)
 367 // CHECK-MSCOMPAT: ret i32 %[[VAR1]]
 368 // CHECK-LINUX: error: call to undeclared function '_CountLeadingZeros'
 369
 370 unsigned int check__CountLeadingZeros64(__int64 arg1) {
 371   return _CountLeadingZeros64(arg1);
 372 }
 373
 374 // CHECK-MSCOMPAT: %[[ARG1:.*]].addr = alloca i64, align 8
 375 // CHECK-MSCOMPAT: store i64 %[[ARG1]], ptr %[[ARG1]].addr, align 8
 376 // CHECK-MSCOMPAT: %[[VAR0:.*]] = load i64, ptr %[[ARG1]].addr, align 8
 377 // CHECK-MSCOMPAT: %[[VAR1:.*]] = call i64 @llvm.ctlz.i64(i64 %[[VAR0]], i1 false)
 378 // CHECK-MSCOMPAT: %[[VAR2:.*]] = trunc i64 %[[VAR1]] to i32
 379 // CHECK-MSCOMPAT: ret i32 %[[VAR2]]
 380 // CHECK-LINUX: error: call to undeclared function '_CountLeadingZeros64'
 381
 382 unsigned int check_CountOneBits(unsigned LONG arg1) {
 383   return _CountOneBits(arg1);
 384 }
 385
 386 // CHECK-MSCOMPAT: %[[ARG1:.*]].addr = alloca i32, align 4
 387 // CHECK-MSCOMPAT: store i32 %[[ARG1]], ptr %[[ARG1]].addr, align 4
 388 // CHECK-MSCOMPAT: %[[VAR0:.*]] = load i32, ptr %[[ARG1]].addr, align 4
 389 // CHECK-MSCOMPAT: %[[VAR1:.*]] = call i32 @llvm.ctpop.i32(i32 %0)
 390 // CHECK-MSCOMPAT: ret i32 %[[VAR1]]
 391 // CHECK-LINUX: error: call to undeclared function '_CountOneBits'
 392
 393 unsigned int check_CountOneBits64(unsigned __int64 arg1) {
 394   return _CountOneBits64(arg1);
 395 }
 396
 397 // CHECK-MSCOMPAT: %[[ARG1:.*]].addr = alloca i64, align 8
 398 // CHECK-MSCOMPAT: store i64 %[[ARG1]], ptr %[[ARG1]].addr, align 8
 399 // CHECK-MSCOMPAT: %[[VAR0:.*]] = load i64, ptr %[[ARG1]].addr, align 8
 400 // CHECK-MSCOMPAT: %[[VAR1:.*]] = call i64 @llvm.ctpop.i64(i64 %0)
 401 // CHECK-MSCOMPAT: %[[VAR2:.*]] = trunc i64 %1 to i32
 402 // CHECK-MSCOMPAT: ret i32 %[[VAR2]]
 403 // CHECK-LINUX: error: call to undeclared function '_CountOneBits64'
 404
 405 void check__prefetch(void *arg1) {
 406   return __prefetch(arg1);
 407 }
 408
 409 // CHECK-MSCOMPAT: %[[ARG1:.*]].addr = alloca ptr, align 8
 410 // CHECK-MSCOMPAT: store ptr %[[ARG1]], ptr %[[ARG1]].addr, align 8
 411 // CHECK-MSCOMPAT: %[[VAR0:.*]] = load ptr, ptr %[[ARG1]].addr, align 8
 412 // CHECK-MSCOMPAT: call void @llvm.prefetch.p0(ptr %[[VAR0]], i32 0, i32 3, i32 1)
 413 // CHECK-MSCOMPAT: ret void
 414
 415
 416 // CHECK-MSCOMPAT: ![[MD2]] = !{!"x18"}
 417 // CHECK-MSCOMPAT: ![[MD3]] = !{!"sp"}