1 // RUN: %clang_cc1 -emit-llvm -o %t %s 2 // RUN: not grep __builtin %t 3 // RUN: %clang_cc1 %s -emit-llvm -o - -triple x86_64-darwin-apple | FileCheck %s 4 5 int printf(const char *, ...); 6 7 void p(char *str, int x) { 8 printf("%s: %d\n", str, x); 9 } 10 void q(char *str, double x) { 11 printf("%s: %f\n", str, x); 12 } 13 void r(char *str, void *ptr) { 14 printf("%s: %p\n", str, ptr); 15 } 16 17 int random(void); 18 19 int main() { 20 int N = random(); 21 #define P(n,args) p(#n #args, __builtin_##n args) 22 #define Q(n,args) q(#n #args, __builtin_##n args) 23 #define R(n,args) r(#n #args, __builtin_##n args) 24 #define V(n,args) p(#n #args, (__builtin_##n args, 0)) 25 P(types_compatible_p, (int, float)); 26 P(choose_expr, (0, 10, 20)); 27 P(constant_p, (sizeof(10))); 28 P(expect, (N == 12, 0)); 29 V(prefetch, (&N)); 30 V(prefetch, (&N, 1)); 31 V(prefetch, (&N, 1, 0)); 32 33 // Numeric Constants 34 35 Q(huge_val, ()); 36 Q(huge_valf, ()); 37 Q(huge_vall, ()); 38 Q(inf, ()); 39 Q(inff, ()); 40 Q(infl, ()); 41 42 P(fpclassify, (0, 1, 2, 3, 4, 1.0)); 43 P(fpclassify, (0, 1, 2, 3, 4, 1.0f)); 44 P(fpclassify, (0, 1, 2, 3, 4, 1.0l)); 45 46 Q(nan, ("")); 47 Q(nanf, ("")); 48 Q(nanl, ("")); 49 Q(nans, ("")); 50 Q(nan, ("10")); 51 Q(nanf, ("10")); 52 Q(nanl, ("10")); 53 Q(nans, ("10")); 54 55 P(isgreater, (1., 2.)); 56 P(isgreaterequal, (1., 2.)); 57 P(isless, (1., 2.)); 58 P(islessequal, (1., 2.)); 59 P(islessgreater, (1., 2.)); 60 P(isunordered, (1., 2.)); 61 62 P(isinf, (1.)); 63 P(isinf_sign, (1.)); 64 P(isnan, (1.)); 65 66 // Bitwise & Numeric Functions 67 68 P(abs, (N)); 69 70 P(clz, (N)); 71 P(clzl, (N)); 72 P(clzll, (N)); 73 P(ctz, (N)); 74 P(ctzl, (N)); 75 P(ctzll, (N)); 76 P(ffs, (N)); 77 P(ffsl, (N)); 78 P(ffsll, (N)); 79 P(parity, (N)); 80 P(parityl, (N)); 81 P(parityll, (N)); 82 P(popcount, (N)); 83 P(popcountl, (N)); 84 P(popcountll, (N)); 85 Q(powi, (1.2f, N)); 86 Q(powif, (1.2f, N)); 87 Q(powil, (1.2f, N)); 88 89 // Lib functions 90 int a, b, n = random(); // Avoid optimizing out. 91 char s0[10], s1[] = "Hello"; 92 V(strcat, (s0, s1)); 93 V(strcmp, (s0, s1)); 94 V(strncat, (s0, s1, n)); 95 V(strchr, (s0, s1[0])); 96 V(strrchr, (s0, s1[0])); 97 V(strcpy, (s0, s1)); 98 V(strncpy, (s0, s1, n)); 99 100 // Object size checking 101 V(__memset_chk, (s0, 0, sizeof s0, n)); 102 V(__memcpy_chk, (s0, s1, sizeof s0, n)); 103 V(__memmove_chk, (s0, s1, sizeof s0, n)); 104 V(__mempcpy_chk, (s0, s1, sizeof s0, n)); 105 V(__strncpy_chk, (s0, s1, sizeof s0, n)); 106 V(__strcpy_chk, (s0, s1, n)); 107 s0[0] = 0; 108 V(__strcat_chk, (s0, s1, n)); 109 P(object_size, (s0, 0)); 110 P(object_size, (s0, 1)); 111 P(object_size, (s0, 2)); 112 P(object_size, (s0, 3)); 113 114 // Whatever 115 116 P(bswap16, (N)); 117 P(bswap32, (N)); 118 P(bswap64, (N)); 119 120 // CHECK: @llvm.bitreverse.i8 121 // CHECK: @llvm.bitreverse.i16 122 // CHECK: @llvm.bitreverse.i32 123 // CHECK: @llvm.bitreverse.i64 124 P(bitreverse8, (N)); 125 P(bitreverse16, (N)); 126 P(bitreverse32, (N)); 127 P(bitreverse64, (N)); 128 129 // FIXME 130 // V(clear_cache, (&N, &N+1)); 131 V(trap, ()); 132 R(extract_return_addr, (&N)); 133 P(signbit, (1.0)); 134 135 return 0; 136 } 137 138 139 140 void foo() { 141 __builtin_strcat(0, 0); 142 } 143 144 // CHECK-LABEL: define void @bar( 145 void bar() { 146 float f; 147 double d; 148 long double ld; 149 150 // LLVM's hex representation of float constants is really unfortunate; 151 // basically it does a float-to-double "conversion" and then prints the 152 // hex form of that. That gives us weird artifacts like exponents 153 // that aren't numerically similar to the original exponent and 154 // significand bit-patterns that are offset by three bits (because 155 // the exponent was expanded from 8 bits to 11). 156 // 157 // 0xAE98 == 1010111010011000 158 // 0x15D3 == 1010111010011 159 160 f = __builtin_huge_valf(); // CHECK: float 0x7FF0000000000000 161 d = __builtin_huge_val(); // CHECK: double 0x7FF0000000000000 162 ld = __builtin_huge_vall(); // CHECK: x86_fp80 0xK7FFF8000000000000000 163 f = __builtin_nanf(""); // CHECK: float 0x7FF8000000000000 164 d = __builtin_nan(""); // CHECK: double 0x7FF8000000000000 165 ld = __builtin_nanl(""); // CHECK: x86_fp80 0xK7FFFC000000000000000 166 f = __builtin_nanf("0xAE98"); // CHECK: float 0x7FF815D300000000 167 d = __builtin_nan("0xAE98"); // CHECK: double 0x7FF800000000AE98 168 ld = __builtin_nanl("0xAE98"); // CHECK: x86_fp80 0xK7FFFC00000000000AE98 169 f = __builtin_nansf(""); // CHECK: float 0x7FF4000000000000 170 d = __builtin_nans(""); // CHECK: double 0x7FF4000000000000 171 ld = __builtin_nansl(""); // CHECK: x86_fp80 0xK7FFFA000000000000000 172 f = __builtin_nansf("0xAE98"); // CHECK: float 0x7FF015D300000000 173 d = __builtin_nans("0xAE98"); // CHECK: double 0x7FF000000000AE98 174 ld = __builtin_nansl("0xAE98");// CHECK: x86_fp80 0xK7FFF800000000000AE98 175 176 } 177 // CHECK: } 178 179 180 // CHECK-LABEL: define void @test_float_builtins 181 void test_float_builtins(float F, double D, long double LD) { 182 volatile int res; 183 res = __builtin_isinf(F); 184 // CHECK: call float @llvm.fabs.f32(float 185 // CHECK: fcmp oeq float {{.*}}, 0x7FF0000000000000 186 187 res = __builtin_isinf(D); 188 // CHECK: call double @llvm.fabs.f64(double 189 // CHECK: fcmp oeq double {{.*}}, 0x7FF0000000000000 190 191 res = __builtin_isinf(LD); 192 // CHECK: call x86_fp80 @llvm.fabs.f80(x86_fp80 193 // CHECK: fcmp oeq x86_fp80 {{.*}}, 0xK7FFF8000000000000000 194 195 res = __builtin_isinf_sign(F); 196 // CHECK: %[[ABS:.*]] = call float @llvm.fabs.f32(float %[[ARG:.*]]) 197 // CHECK: %[[ISINF:.*]] = fcmp oeq float %[[ABS]], 0x7FF0000000000000 198 // CHECK: %[[BITCAST:.*]] = bitcast float %[[ARG]] to i32 199 // CHECK: %[[ISNEG:.*]] = icmp slt i32 %[[BITCAST]], 0 200 // CHECK: %[[SIGN:.*]] = select i1 %[[ISNEG]], i32 -1, i32 1 201 // CHECK: select i1 %[[ISINF]], i32 %[[SIGN]], i32 0 202 203 res = __builtin_isinf_sign(D); 204 // CHECK: %[[ABS:.*]] = call double @llvm.fabs.f64(double %[[ARG:.*]]) 205 // CHECK: %[[ISINF:.*]] = fcmp oeq double %[[ABS]], 0x7FF0000000000000 206 // CHECK: %[[BITCAST:.*]] = bitcast double %[[ARG]] to i64 207 // CHECK: %[[ISNEG:.*]] = icmp slt i64 %[[BITCAST]], 0 208 // CHECK: %[[SIGN:.*]] = select i1 %[[ISNEG]], i32 -1, i32 1 209 // CHECK: select i1 %[[ISINF]], i32 %[[SIGN]], i32 0 210 211 res = __builtin_isinf_sign(LD); 212 // CHECK: %[[ABS:.*]] = call x86_fp80 @llvm.fabs.f80(x86_fp80 %[[ARG:.*]]) 213 // CHECK: %[[ISINF:.*]] = fcmp oeq x86_fp80 %[[ABS]], 0xK7FFF8000000000000000 214 // CHECK: %[[BITCAST:.*]] = bitcast x86_fp80 %[[ARG]] to i80 215 // CHECK: %[[ISNEG:.*]] = icmp slt i80 %[[BITCAST]], 0 216 // CHECK: %[[SIGN:.*]] = select i1 %[[ISNEG]], i32 -1, i32 1 217 // CHECK: select i1 %[[ISINF]], i32 %[[SIGN]], i32 0 218 219 res = __builtin_isfinite(F); 220 // CHECK: call float @llvm.fabs.f32(float 221 // CHECK: fcmp one float {{.*}}, 0x7FF0000000000000 222 223 res = __builtin_isnormal(F); 224 // CHECK: fcmp oeq float 225 // CHECK: call float @llvm.fabs.f32(float 226 // CHECK: fcmp ult float {{.*}}, 0x7FF0000000000000 227 // CHECK: fcmp uge float {{.*}}, 0x3810000000000000 228 // CHECK: and i1 229 // CHECK: and i1 230 } 231 232 // CHECK-LABEL: define void @test_float_builtin_ops 233 void test_float_builtin_ops(float F, double D, long double LD) { 234 volatile float resf; 235 volatile double resd; 236 volatile long double resld; 237 238 resf = __builtin_fmodf(F,F); 239 // CHECK: frem float 240 241 resd = __builtin_fmod(D,D); 242 // CHECK: frem double 243 244 resld = __builtin_fmodl(LD,LD); 245 // CHECK: frem x86_fp80 246 247 resf = __builtin_fabsf(F); 248 resd = __builtin_fabs(D); 249 resld = __builtin_fabsl(LD); 250 // CHECK: call float @llvm.fabs.f32(float 251 // CHECK: call double @llvm.fabs.f64(double 252 // CHECK: call x86_fp80 @llvm.fabs.f80(x86_fp80 253 254 resf = __builtin_canonicalizef(F); 255 resd = __builtin_canonicalize(D); 256 resld = __builtin_canonicalizel(LD); 257 // CHECK: call float @llvm.canonicalize.f32(float 258 // CHECK: call double @llvm.canonicalize.f64(double 259 // CHECK: call x86_fp80 @llvm.canonicalize.f80(x86_fp80 260 261 resf = __builtin_fminf(F, F); 262 // CHECK: call float @llvm.minnum.f32 263 264 resd = __builtin_fmin(D, D); 265 // CHECK: call double @llvm.minnum.f64 266 267 resld = __builtin_fminl(LD, LD); 268 // CHECK: call x86_fp80 @llvm.minnum.f80 269 270 resf = __builtin_fmaxf(F, F); 271 // CHECK: call float @llvm.maxnum.f32 272 273 resd = __builtin_fmax(D, D); 274 // CHECK: call double @llvm.maxnum.f64 275 276 resld = __builtin_fmaxl(LD, LD); 277 // CHECK: call x86_fp80 @llvm.maxnum.f80 278 279 resf = __builtin_fabsf(F); 280 // CHECK: call float @llvm.fabs.f32 281 282 resd = __builtin_fabs(D); 283 // CHECK: call double @llvm.fabs.f64 284 285 resld = __builtin_fabsl(LD); 286 // CHECK: call x86_fp80 @llvm.fabs.f80 287 288 resf = __builtin_copysignf(F, F); 289 // CHECK: call float @llvm.copysign.f32 290 291 resd = __builtin_copysign(D, D); 292 // CHECK: call double @llvm.copysign.f64 293 294 resld = __builtin_copysignl(LD, LD); 295 // CHECK: call x86_fp80 @llvm.copysign.f80 296 297 298 resf = __builtin_ceilf(F); 299 // CHECK: call float @llvm.ceil.f32 300 301 resd = __builtin_ceil(D); 302 // CHECK: call double @llvm.ceil.f64 303 304 resld = __builtin_ceill(LD); 305 // CHECK: call x86_fp80 @llvm.ceil.f80 306 307 resf = __builtin_floorf(F); 308 // CHECK: call float @llvm.floor.f32 309 310 resd = __builtin_floor(D); 311 // CHECK: call double @llvm.floor.f64 312 313 resld = __builtin_floorl(LD); 314 // CHECK: call x86_fp80 @llvm.floor.f80 315 316 resf = __builtin_truncf(F); 317 // CHECK: call float @llvm.trunc.f32 318 319 resd = __builtin_trunc(D); 320 // CHECK: call double @llvm.trunc.f64 321 322 resld = __builtin_truncl(LD); 323 // CHECK: call x86_fp80 @llvm.trunc.f80 324 325 resf = __builtin_rintf(F); 326 // CHECK: call float @llvm.rint.f32 327 328 resd = __builtin_rint(D); 329 // CHECK: call double @llvm.rint.f64 330 331 resld = __builtin_rintl(LD); 332 // CHECK: call x86_fp80 @llvm.rint.f80 333 334 resf = __builtin_nearbyintf(F); 335 // CHECK: call float @llvm.nearbyint.f32 336 337 resd = __builtin_nearbyint(D); 338 // CHECK: call double @llvm.nearbyint.f64 339 340 resld = __builtin_nearbyintl(LD); 341 // CHECK: call x86_fp80 @llvm.nearbyint.f80 342 343 resf = __builtin_roundf(F); 344 // CHECK: call float @llvm.round.f32 345 346 resd = __builtin_round(D); 347 // CHECK: call double @llvm.round.f64 348 349 resld = __builtin_roundl(LD); 350 // CHECK: call x86_fp80 @llvm.round.f80 351 352 } 353 354 // __builtin_longjmp isn't supported on all platforms, so only test it on X86. 355 #ifdef __x86_64__ 356 // CHECK-LABEL: define void @test_builtin_longjmp 357 void test_builtin_longjmp(void **buffer) { 358 // CHECK: [[BITCAST:%.*]] = bitcast 359 // CHECK-NEXT: call void @llvm.eh.sjlj.longjmp(i8* [[BITCAST]]) 360 __builtin_longjmp(buffer, 1); 361 // CHECK-NEXT: unreachable 362 } 363 #endif 364 365 // CHECK-LABEL: define i64 @test_builtin_readcyclecounter 366 long long test_builtin_readcyclecounter() { 367 // CHECK: call i64 @llvm.readcyclecounter() 368 return __builtin_readcyclecounter(); 369 } 370
