1 // CodeGen/RuntimeLibcallSignatures.cpp - R.T. Lib. Call Signatures -*- C++ -*-- 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 /// 9 /// \file 10 /// This file contains signature information for runtime libcalls. 11 /// 12 /// CodeGen uses external symbols, which it refers to by name. The WebAssembly 13 /// target needs type information for all functions. This file contains a big 14 /// table providing type signatures for all runtime library functions that LLVM 15 /// uses. 16 /// 17 /// This is currently a fairly heavy-handed solution. 18 /// 19 //===----------------------------------------------------------------------===// 20 21 #include "WebAssemblyRuntimeLibcallSignatures.h" 22 #include "WebAssemblySubtarget.h" 23 #include "llvm/CodeGen/RuntimeLibcalls.h" 24 #include "llvm/Support/ManagedStatic.h" 25 26 using namespace llvm; 27 28 namespace { 29 30 enum RuntimeLibcallSignature { 31 func, 32 f32_func_f32, 33 f32_func_f64, 34 f32_func_i32, 35 f32_func_i64, 36 f32_func_i16, 37 f64_func_f32, 38 f64_func_f64, 39 f64_func_i32, 40 f64_func_i64, 41 i32_func_f32, 42 i32_func_f64, 43 i32_func_i32, 44 i64_func_f32, 45 i64_func_f64, 46 i64_func_i64, 47 f32_func_f32_f32, 48 f32_func_f32_i32, 49 f32_func_i64_i64, 50 f64_func_f64_f64, 51 f64_func_f64_i32, 52 f64_func_i64_i64, 53 i16_func_f32, 54 i16_func_f64, 55 i16_func_i64_i64, 56 i8_func_i8_i8, 57 func_f32_iPTR_iPTR, 58 func_f64_iPTR_iPTR, 59 i16_func_i16_i16, 60 i32_func_f32_f32, 61 i32_func_f64_f64, 62 i32_func_i32_i32, 63 i32_func_i32_i32_iPTR, 64 i64_func_i64_i64, 65 i64_func_i64_i64_iPTR, 66 i64_i64_func_f32, 67 i64_i64_func_f64, 68 i16_i16_func_i16_i16, 69 i32_i32_func_i32_i32, 70 i64_i64_func_i64_i64, 71 i64_i64_func_i64_i64_i64_i64, 72 i64_i64_func_i64_i64_i64_i64_iPTR, 73 i64_i64_i64_i64_func_i64_i64_i64_i64, 74 i64_i64_func_i64_i64_i32, 75 iPTR_func_iPTR_i32_iPTR, 76 iPTR_func_iPTR_iPTR_iPTR, 77 f32_func_f32_f32_f32, 78 f64_func_f64_f64_f64, 79 func_i64_i64_iPTR_iPTR, 80 func_iPTR_f32, 81 func_iPTR_f64, 82 func_iPTR_i32, 83 func_iPTR_i64, 84 func_iPTR_i64_i64, 85 func_iPTR_i64_i64_i64_i64, 86 func_iPTR_i64_i64_i64_i64_i64_i64, 87 i32_func_i64_i64, 88 i32_func_i64_i64_i64_i64, 89 iPTR_func_f32, 90 iPTR_func_f64, 91 iPTR_func_i64_i64, 92 unsupported 93 }; 94 95 struct RuntimeLibcallSignatureTable { 96 std::vector<RuntimeLibcallSignature> Table; 97 98 // Any newly-added libcalls will be unsupported by default. 99 RuntimeLibcallSignatureTable() : Table(RTLIB::UNKNOWN_LIBCALL, unsupported) { 100 // Integer 101 Table[RTLIB::SHL_I16] = i16_func_i16_i16; 102 Table[RTLIB::SHL_I32] = i32_func_i32_i32; 103 Table[RTLIB::SHL_I64] = i64_func_i64_i64; 104 Table[RTLIB::SHL_I128] = i64_i64_func_i64_i64_i32; 105 Table[RTLIB::SRL_I16] = i16_func_i16_i16; 106 Table[RTLIB::SRL_I32] = i32_func_i32_i32; 107 Table[RTLIB::SRL_I64] = i64_func_i64_i64; 108 Table[RTLIB::SRL_I128] = i64_i64_func_i64_i64_i32; 109 Table[RTLIB::SRA_I16] = i16_func_i16_i16; 110 Table[RTLIB::SRA_I32] = i32_func_i32_i32; 111 Table[RTLIB::SRA_I64] = i64_func_i64_i64; 112 Table[RTLIB::SRA_I128] = i64_i64_func_i64_i64_i32; 113 Table[RTLIB::MUL_I8] = i8_func_i8_i8; 114 Table[RTLIB::MUL_I16] = i16_func_i16_i16; 115 Table[RTLIB::MUL_I32] = i32_func_i32_i32; 116 Table[RTLIB::MUL_I64] = i64_func_i64_i64; 117 Table[RTLIB::MUL_I128] = i64_i64_func_i64_i64_i64_i64; 118 Table[RTLIB::MULO_I32] = i32_func_i32_i32_iPTR; 119 Table[RTLIB::MULO_I64] = i64_func_i64_i64_iPTR; 120 Table[RTLIB::MULO_I128] = i64_i64_func_i64_i64_i64_i64_iPTR; 121 Table[RTLIB::SDIV_I8] = i8_func_i8_i8; 122 Table[RTLIB::SDIV_I16] = i16_func_i16_i16; 123 Table[RTLIB::SDIV_I32] = i32_func_i32_i32; 124 Table[RTLIB::SDIV_I64] = i64_func_i64_i64; 125 Table[RTLIB::SDIV_I128] = i64_i64_func_i64_i64_i64_i64; 126 Table[RTLIB::UDIV_I8] = i8_func_i8_i8; 127 Table[RTLIB::UDIV_I16] = i16_func_i16_i16; 128 Table[RTLIB::UDIV_I32] = i32_func_i32_i32; 129 Table[RTLIB::UDIV_I64] = i64_func_i64_i64; 130 Table[RTLIB::UDIV_I128] = i64_i64_func_i64_i64_i64_i64; 131 Table[RTLIB::SREM_I8] = i8_func_i8_i8; 132 Table[RTLIB::SREM_I16] = i16_func_i16_i16; 133 Table[RTLIB::SREM_I32] = i32_func_i32_i32; 134 Table[RTLIB::SREM_I64] = i64_func_i64_i64; 135 Table[RTLIB::SREM_I128] = i64_i64_func_i64_i64_i64_i64; 136 Table[RTLIB::UREM_I8] = i8_func_i8_i8; 137 Table[RTLIB::UREM_I16] = i16_func_i16_i16; 138 Table[RTLIB::UREM_I32] = i32_func_i32_i32; 139 Table[RTLIB::UREM_I64] = i64_func_i64_i64; 140 Table[RTLIB::UREM_I128] = i64_i64_func_i64_i64_i64_i64; 141 Table[RTLIB::SDIVREM_I8] = i8_func_i8_i8; 142 Table[RTLIB::SDIVREM_I16] = i16_i16_func_i16_i16; 143 Table[RTLIB::SDIVREM_I32] = i32_i32_func_i32_i32; 144 Table[RTLIB::SDIVREM_I64] = i64_func_i64_i64; 145 Table[RTLIB::SDIVREM_I128] = i64_i64_i64_i64_func_i64_i64_i64_i64; 146 Table[RTLIB::UDIVREM_I8] = i8_func_i8_i8; 147 Table[RTLIB::UDIVREM_I16] = i16_i16_func_i16_i16; 148 Table[RTLIB::UDIVREM_I32] = i32_i32_func_i32_i32; 149 Table[RTLIB::UDIVREM_I64] = i64_i64_func_i64_i64; 150 Table[RTLIB::UDIVREM_I128] = i64_i64_i64_i64_func_i64_i64_i64_i64; 151 Table[RTLIB::NEG_I32] = i32_func_i32; 152 Table[RTLIB::NEG_I64] = i64_func_i64; 153 154 // Floating-point. 155 // All F80 and PPCF128 routines are unsupported. 156 Table[RTLIB::ADD_F32] = f32_func_f32_f32; 157 Table[RTLIB::ADD_F64] = f64_func_f64_f64; 158 Table[RTLIB::ADD_F128] = func_iPTR_i64_i64_i64_i64; 159 Table[RTLIB::SUB_F32] = f32_func_f32_f32; 160 Table[RTLIB::SUB_F64] = f64_func_f64_f64; 161 Table[RTLIB::SUB_F128] = func_iPTR_i64_i64_i64_i64; 162 Table[RTLIB::MUL_F32] = f32_func_f32_f32; 163 Table[RTLIB::MUL_F64] = f64_func_f64_f64; 164 Table[RTLIB::MUL_F128] = func_iPTR_i64_i64_i64_i64; 165 Table[RTLIB::DIV_F32] = f32_func_f32_f32; 166 Table[RTLIB::DIV_F64] = f64_func_f64_f64; 167 Table[RTLIB::DIV_F128] = func_iPTR_i64_i64_i64_i64; 168 Table[RTLIB::REM_F32] = f32_func_f32_f32; 169 Table[RTLIB::REM_F64] = f64_func_f64_f64; 170 Table[RTLIB::REM_F128] = func_iPTR_i64_i64_i64_i64; 171 Table[RTLIB::FMA_F32] = f32_func_f32_f32_f32; 172 Table[RTLIB::FMA_F64] = f64_func_f64_f64_f64; 173 Table[RTLIB::FMA_F128] = func_iPTR_i64_i64_i64_i64_i64_i64; 174 Table[RTLIB::POWI_F32] = f32_func_f32_i32; 175 Table[RTLIB::POWI_F64] = f64_func_f64_i32; 176 Table[RTLIB::POWI_F128] = func_iPTR_i64_i64_i64_i64; 177 Table[RTLIB::SQRT_F32] = f32_func_f32; 178 Table[RTLIB::SQRT_F64] = f64_func_f64; 179 Table[RTLIB::SQRT_F128] = func_iPTR_i64_i64; 180 Table[RTLIB::LOG_F32] = f32_func_f32; 181 Table[RTLIB::LOG_F64] = f64_func_f64; 182 Table[RTLIB::LOG_F128] = func_iPTR_i64_i64; 183 Table[RTLIB::LOG2_F32] = f32_func_f32; 184 Table[RTLIB::LOG2_F64] = f64_func_f64; 185 Table[RTLIB::LOG2_F128] = func_iPTR_i64_i64; 186 Table[RTLIB::LOG10_F32] = f32_func_f32; 187 Table[RTLIB::LOG10_F64] = f64_func_f64; 188 Table[RTLIB::LOG10_F128] = func_iPTR_i64_i64; 189 Table[RTLIB::EXP_F32] = f32_func_f32; 190 Table[RTLIB::EXP_F64] = f64_func_f64; 191 Table[RTLIB::EXP_F128] = func_iPTR_i64_i64; 192 Table[RTLIB::EXP2_F32] = f32_func_f32; 193 Table[RTLIB::EXP2_F64] = f64_func_f64; 194 Table[RTLIB::EXP2_F128] = func_iPTR_i64_i64; 195 Table[RTLIB::SIN_F32] = f32_func_f32; 196 Table[RTLIB::SIN_F64] = f64_func_f64; 197 Table[RTLIB::SIN_F128] = func_iPTR_i64_i64; 198 Table[RTLIB::COS_F32] = f32_func_f32; 199 Table[RTLIB::COS_F64] = f64_func_f64; 200 Table[RTLIB::COS_F128] = func_iPTR_i64_i64; 201 Table[RTLIB::SINCOS_F32] = func_f32_iPTR_iPTR; 202 Table[RTLIB::SINCOS_F64] = func_f64_iPTR_iPTR; 203 Table[RTLIB::SINCOS_F128] = func_i64_i64_iPTR_iPTR; 204 Table[RTLIB::POW_F32] = f32_func_f32_f32; 205 Table[RTLIB::POW_F64] = f64_func_f64_f64; 206 Table[RTLIB::POW_F128] = func_iPTR_i64_i64_i64_i64; 207 Table[RTLIB::CEIL_F32] = f32_func_f32; 208 Table[RTLIB::CEIL_F64] = f64_func_f64; 209 Table[RTLIB::CEIL_F128] = func_iPTR_i64_i64; 210 Table[RTLIB::TRUNC_F32] = f32_func_f32; 211 Table[RTLIB::TRUNC_F64] = f64_func_f64; 212 Table[RTLIB::TRUNC_F128] = func_iPTR_i64_i64; 213 Table[RTLIB::RINT_F32] = f32_func_f32; 214 Table[RTLIB::RINT_F64] = f64_func_f64; 215 Table[RTLIB::RINT_F128] = func_iPTR_i64_i64; 216 Table[RTLIB::NEARBYINT_F32] = f32_func_f32; 217 Table[RTLIB::NEARBYINT_F64] = f64_func_f64; 218 Table[RTLIB::NEARBYINT_F128] = func_iPTR_i64_i64; 219 Table[RTLIB::ROUND_F32] = f32_func_f32; 220 Table[RTLIB::ROUND_F64] = f64_func_f64; 221 Table[RTLIB::ROUND_F128] = func_iPTR_i64_i64; 222 Table[RTLIB::LROUND_F32] = iPTR_func_f32; 223 Table[RTLIB::LROUND_F64] = iPTR_func_f64; 224 Table[RTLIB::LROUND_F128] = iPTR_func_i64_i64; 225 Table[RTLIB::LLROUND_F32] = i64_func_f32; 226 Table[RTLIB::LLROUND_F64] = i64_func_f64; 227 Table[RTLIB::LLROUND_F128] = i64_func_i64_i64; 228 Table[RTLIB::FLOOR_F32] = f32_func_f32; 229 Table[RTLIB::FLOOR_F64] = f64_func_f64; 230 Table[RTLIB::FLOOR_F128] = func_iPTR_i64_i64; 231 Table[RTLIB::COPYSIGN_F32] = f32_func_f32_f32; 232 Table[RTLIB::COPYSIGN_F64] = f64_func_f64_f64; 233 Table[RTLIB::COPYSIGN_F128] = func_iPTR_i64_i64_i64_i64; 234 Table[RTLIB::FMIN_F32] = f32_func_f32_f32; 235 Table[RTLIB::FMIN_F64] = f64_func_f64_f64; 236 Table[RTLIB::FMIN_F128] = func_iPTR_i64_i64_i64_i64; 237 Table[RTLIB::FMAX_F32] = f32_func_f32_f32; 238 Table[RTLIB::FMAX_F64] = f64_func_f64_f64; 239 Table[RTLIB::FMAX_F128] = func_iPTR_i64_i64_i64_i64; 240 241 // Conversion 242 // All F80 and PPCF128 routines are unsupported. 243 Table[RTLIB::FPEXT_F64_F128] = func_iPTR_f64; 244 Table[RTLIB::FPEXT_F32_F128] = func_iPTR_f32; 245 Table[RTLIB::FPEXT_F32_F64] = f64_func_f32; 246 Table[RTLIB::FPEXT_F16_F32] = f32_func_i16; 247 Table[RTLIB::FPROUND_F32_F16] = i16_func_f32; 248 Table[RTLIB::FPROUND_F64_F16] = i16_func_f64; 249 Table[RTLIB::FPROUND_F64_F32] = f32_func_f64; 250 Table[RTLIB::FPROUND_F128_F16] = i16_func_i64_i64; 251 Table[RTLIB::FPROUND_F128_F32] = f32_func_i64_i64; 252 Table[RTLIB::FPROUND_F128_F64] = f64_func_i64_i64; 253 Table[RTLIB::FPTOSINT_F32_I32] = i32_func_f32; 254 Table[RTLIB::FPTOSINT_F32_I64] = i64_func_f32; 255 Table[RTLIB::FPTOSINT_F32_I128] = i64_i64_func_f32; 256 Table[RTLIB::FPTOSINT_F64_I32] = i32_func_f64; 257 Table[RTLIB::FPTOSINT_F64_I64] = i64_func_f64; 258 Table[RTLIB::FPTOSINT_F64_I128] = i64_i64_func_f64; 259 Table[RTLIB::FPTOSINT_F128_I32] = i32_func_i64_i64; 260 Table[RTLIB::FPTOSINT_F128_I64] = i64_func_i64_i64; 261 Table[RTLIB::FPTOSINT_F128_I128] = i64_i64_func_i64_i64; 262 Table[RTLIB::FPTOUINT_F32_I32] = i32_func_f32; 263 Table[RTLIB::FPTOUINT_F32_I64] = i64_func_f32; 264 Table[RTLIB::FPTOUINT_F32_I128] = i64_i64_func_f32; 265 Table[RTLIB::FPTOUINT_F64_I32] = i32_func_f64; 266 Table[RTLIB::FPTOUINT_F64_I64] = i64_func_f64; 267 Table[RTLIB::FPTOUINT_F64_I128] = i64_i64_func_f64; 268 Table[RTLIB::FPTOUINT_F128_I32] = i32_func_i64_i64; 269 Table[RTLIB::FPTOUINT_F128_I64] = i64_func_i64_i64; 270 Table[RTLIB::FPTOUINT_F128_I128] = i64_i64_func_i64_i64; 271 Table[RTLIB::SINTTOFP_I32_F32] = f32_func_i32; 272 Table[RTLIB::SINTTOFP_I32_F64] = f64_func_i32; 273 Table[RTLIB::SINTTOFP_I32_F128] = func_iPTR_i32; 274 Table[RTLIB::SINTTOFP_I64_F32] = f32_func_i64; 275 Table[RTLIB::SINTTOFP_I64_F64] = f64_func_i64; 276 Table[RTLIB::SINTTOFP_I64_F128] = func_iPTR_i64; 277 Table[RTLIB::SINTTOFP_I128_F32] = f32_func_i64_i64; 278 Table[RTLIB::SINTTOFP_I128_F64] = f64_func_i64_i64; 279 Table[RTLIB::SINTTOFP_I128_F128] = func_iPTR_i64_i64; 280 Table[RTLIB::UINTTOFP_I32_F32] = f32_func_i32; 281 Table[RTLIB::UINTTOFP_I32_F64] = f64_func_i64; 282 Table[RTLIB::UINTTOFP_I32_F128] = func_iPTR_i32; 283 Table[RTLIB::UINTTOFP_I64_F32] = f32_func_i64; 284 Table[RTLIB::UINTTOFP_I64_F64] = f64_func_i64; 285 Table[RTLIB::UINTTOFP_I64_F128] = func_iPTR_i64; 286 Table[RTLIB::UINTTOFP_I128_F32] = f32_func_i64_i64; 287 Table[RTLIB::UINTTOFP_I128_F64] = f64_func_i64_i64; 288 Table[RTLIB::UINTTOFP_I128_F128] = func_iPTR_i64_i64; 289 290 // Comparison 291 // ALl F80 and PPCF128 routines are unsupported. 292 Table[RTLIB::OEQ_F32] = i32_func_f32_f32; 293 Table[RTLIB::OEQ_F64] = i32_func_f64_f64; 294 Table[RTLIB::OEQ_F128] = i32_func_i64_i64_i64_i64; 295 Table[RTLIB::UNE_F32] = i32_func_f32_f32; 296 Table[RTLIB::UNE_F64] = i32_func_f64_f64; 297 Table[RTLIB::UNE_F128] = i32_func_i64_i64_i64_i64; 298 Table[RTLIB::OGE_F32] = i32_func_f32_f32; 299 Table[RTLIB::OGE_F64] = i32_func_f64_f64; 300 Table[RTLIB::OGE_F128] = i32_func_i64_i64_i64_i64; 301 Table[RTLIB::OLT_F32] = i32_func_f32_f32; 302 Table[RTLIB::OLT_F64] = i32_func_f64_f64; 303 Table[RTLIB::OLT_F128] = i32_func_i64_i64_i64_i64; 304 Table[RTLIB::OLE_F32] = i32_func_f32_f32; 305 Table[RTLIB::OLE_F64] = i32_func_f64_f64; 306 Table[RTLIB::OLE_F128] = i32_func_i64_i64_i64_i64; 307 Table[RTLIB::OGT_F32] = i32_func_f32_f32; 308 Table[RTLIB::OGT_F64] = i32_func_f64_f64; 309 Table[RTLIB::OGT_F128] = i32_func_i64_i64_i64_i64; 310 Table[RTLIB::UO_F32] = i32_func_f32_f32; 311 Table[RTLIB::UO_F64] = i32_func_f64_f64; 312 Table[RTLIB::UO_F128] = i32_func_i64_i64_i64_i64; 313 // O_FXX has the weird property that it uses the same libcall name as UO_FXX 314 // This breaks our name-based lookup. Fortunately only the UO family of 315 // libcalls appears to be actually used. 316 Table[RTLIB::O_F32] = unsupported; 317 Table[RTLIB::O_F64] = unsupported; 318 Table[RTLIB::O_F128] = unsupported; 319 320 // Memory 321 Table[RTLIB::MEMCPY] = iPTR_func_iPTR_iPTR_iPTR; 322 Table[RTLIB::MEMSET] = iPTR_func_iPTR_i32_iPTR; 323 Table[RTLIB::MEMMOVE] = iPTR_func_iPTR_iPTR_iPTR; 324 325 // __stack_chk_fail 326 Table[RTLIB::STACKPROTECTOR_CHECK_FAIL] = func; 327 328 // Element-wise Atomic memory 329 // TODO: Fix these when we implement atomic support 330 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_1] = unsupported; 331 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_2] = unsupported; 332 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_4] = unsupported; 333 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_8] = unsupported; 334 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_16] = unsupported; 335 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_1] = unsupported; 336 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_2] = unsupported; 337 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_4] = unsupported; 338 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_8] = unsupported; 339 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_16] = unsupported; 340 341 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_1] = unsupported; 342 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_2] = unsupported; 343 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_4] = unsupported; 344 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_8] = unsupported; 345 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_16] = unsupported; 346 347 // Atomic '__sync_*' libcalls. 348 // TODO: Fix these when we implement atomic support 349 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_1] = unsupported; 350 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_2] = unsupported; 351 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_4] = unsupported; 352 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_8] = unsupported; 353 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_16] = unsupported; 354 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_1] = unsupported; 355 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_2] = unsupported; 356 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_4] = unsupported; 357 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_8] = unsupported; 358 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_16] = unsupported; 359 Table[RTLIB::SYNC_FETCH_AND_ADD_1] = unsupported; 360 Table[RTLIB::SYNC_FETCH_AND_ADD_2] = unsupported; 361 Table[RTLIB::SYNC_FETCH_AND_ADD_4] = unsupported; 362 Table[RTLIB::SYNC_FETCH_AND_ADD_8] = unsupported; 363 Table[RTLIB::SYNC_FETCH_AND_ADD_16] = unsupported; 364 Table[RTLIB::SYNC_FETCH_AND_SUB_1] = unsupported; 365 Table[RTLIB::SYNC_FETCH_AND_SUB_2] = unsupported; 366 Table[RTLIB::SYNC_FETCH_AND_SUB_4] = unsupported; 367 Table[RTLIB::SYNC_FETCH_AND_SUB_8] = unsupported; 368 Table[RTLIB::SYNC_FETCH_AND_SUB_16] = unsupported; 369 Table[RTLIB::SYNC_FETCH_AND_AND_1] = unsupported; 370 Table[RTLIB::SYNC_FETCH_AND_AND_2] = unsupported; 371 Table[RTLIB::SYNC_FETCH_AND_AND_4] = unsupported; 372 Table[RTLIB::SYNC_FETCH_AND_AND_8] = unsupported; 373 Table[RTLIB::SYNC_FETCH_AND_AND_16] = unsupported; 374 Table[RTLIB::SYNC_FETCH_AND_OR_1] = unsupported; 375 Table[RTLIB::SYNC_FETCH_AND_OR_2] = unsupported; 376 Table[RTLIB::SYNC_FETCH_AND_OR_4] = unsupported; 377 Table[RTLIB::SYNC_FETCH_AND_OR_8] = unsupported; 378 Table[RTLIB::SYNC_FETCH_AND_OR_16] = unsupported; 379 Table[RTLIB::SYNC_FETCH_AND_XOR_1] = unsupported; 380 Table[RTLIB::SYNC_FETCH_AND_XOR_2] = unsupported; 381 Table[RTLIB::SYNC_FETCH_AND_XOR_4] = unsupported; 382 Table[RTLIB::SYNC_FETCH_AND_XOR_8] = unsupported; 383 Table[RTLIB::SYNC_FETCH_AND_XOR_16] = unsupported; 384 Table[RTLIB::SYNC_FETCH_AND_NAND_1] = unsupported; 385 Table[RTLIB::SYNC_FETCH_AND_NAND_2] = unsupported; 386 Table[RTLIB::SYNC_FETCH_AND_NAND_4] = unsupported; 387 Table[RTLIB::SYNC_FETCH_AND_NAND_8] = unsupported; 388 Table[RTLIB::SYNC_FETCH_AND_NAND_16] = unsupported; 389 Table[RTLIB::SYNC_FETCH_AND_MAX_1] = unsupported; 390 Table[RTLIB::SYNC_FETCH_AND_MAX_2] = unsupported; 391 Table[RTLIB::SYNC_FETCH_AND_MAX_4] = unsupported; 392 Table[RTLIB::SYNC_FETCH_AND_MAX_8] = unsupported; 393 Table[RTLIB::SYNC_FETCH_AND_MAX_16] = unsupported; 394 Table[RTLIB::SYNC_FETCH_AND_UMAX_1] = unsupported; 395 Table[RTLIB::SYNC_FETCH_AND_UMAX_2] = unsupported; 396 Table[RTLIB::SYNC_FETCH_AND_UMAX_4] = unsupported; 397 Table[RTLIB::SYNC_FETCH_AND_UMAX_8] = unsupported; 398 Table[RTLIB::SYNC_FETCH_AND_UMAX_16] = unsupported; 399 Table[RTLIB::SYNC_FETCH_AND_MIN_1] = unsupported; 400 Table[RTLIB::SYNC_FETCH_AND_MIN_2] = unsupported; 401 Table[RTLIB::SYNC_FETCH_AND_MIN_4] = unsupported; 402 Table[RTLIB::SYNC_FETCH_AND_MIN_8] = unsupported; 403 Table[RTLIB::SYNC_FETCH_AND_MIN_16] = unsupported; 404 Table[RTLIB::SYNC_FETCH_AND_UMIN_1] = unsupported; 405 Table[RTLIB::SYNC_FETCH_AND_UMIN_2] = unsupported; 406 Table[RTLIB::SYNC_FETCH_AND_UMIN_4] = unsupported; 407 Table[RTLIB::SYNC_FETCH_AND_UMIN_8] = unsupported; 408 Table[RTLIB::SYNC_FETCH_AND_UMIN_16] = unsupported; 409 410 // Atomic '__atomic_*' libcalls. 411 // TODO: Fix these when we implement atomic support 412 Table[RTLIB::ATOMIC_LOAD] = unsupported; 413 Table[RTLIB::ATOMIC_LOAD_1] = unsupported; 414 Table[RTLIB::ATOMIC_LOAD_2] = unsupported; 415 Table[RTLIB::ATOMIC_LOAD_4] = unsupported; 416 Table[RTLIB::ATOMIC_LOAD_8] = unsupported; 417 Table[RTLIB::ATOMIC_LOAD_16] = unsupported; 418 419 Table[RTLIB::ATOMIC_STORE] = unsupported; 420 Table[RTLIB::ATOMIC_STORE_1] = unsupported; 421 Table[RTLIB::ATOMIC_STORE_2] = unsupported; 422 Table[RTLIB::ATOMIC_STORE_4] = unsupported; 423 Table[RTLIB::ATOMIC_STORE_8] = unsupported; 424 Table[RTLIB::ATOMIC_STORE_16] = unsupported; 425 426 Table[RTLIB::ATOMIC_EXCHANGE] = unsupported; 427 Table[RTLIB::ATOMIC_EXCHANGE_1] = unsupported; 428 Table[RTLIB::ATOMIC_EXCHANGE_2] = unsupported; 429 Table[RTLIB::ATOMIC_EXCHANGE_4] = unsupported; 430 Table[RTLIB::ATOMIC_EXCHANGE_8] = unsupported; 431 Table[RTLIB::ATOMIC_EXCHANGE_16] = unsupported; 432 433 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE] = unsupported; 434 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_1] = unsupported; 435 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_2] = unsupported; 436 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_4] = unsupported; 437 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_8] = unsupported; 438 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_16] = unsupported; 439 440 Table[RTLIB::ATOMIC_FETCH_ADD_1] = unsupported; 441 Table[RTLIB::ATOMIC_FETCH_ADD_2] = unsupported; 442 Table[RTLIB::ATOMIC_FETCH_ADD_4] = unsupported; 443 Table[RTLIB::ATOMIC_FETCH_ADD_8] = unsupported; 444 Table[RTLIB::ATOMIC_FETCH_ADD_16] = unsupported; 445 446 Table[RTLIB::ATOMIC_FETCH_SUB_1] = unsupported; 447 Table[RTLIB::ATOMIC_FETCH_SUB_2] = unsupported; 448 Table[RTLIB::ATOMIC_FETCH_SUB_4] = unsupported; 449 Table[RTLIB::ATOMIC_FETCH_SUB_8] = unsupported; 450 Table[RTLIB::ATOMIC_FETCH_SUB_16] = unsupported; 451 452 Table[RTLIB::ATOMIC_FETCH_AND_1] = unsupported; 453 Table[RTLIB::ATOMIC_FETCH_AND_2] = unsupported; 454 Table[RTLIB::ATOMIC_FETCH_AND_4] = unsupported; 455 Table[RTLIB::ATOMIC_FETCH_AND_8] = unsupported; 456 Table[RTLIB::ATOMIC_FETCH_AND_16] = unsupported; 457 458 Table[RTLIB::ATOMIC_FETCH_OR_1] = unsupported; 459 Table[RTLIB::ATOMIC_FETCH_OR_2] = unsupported; 460 Table[RTLIB::ATOMIC_FETCH_OR_4] = unsupported; 461 Table[RTLIB::ATOMIC_FETCH_OR_8] = unsupported; 462 Table[RTLIB::ATOMIC_FETCH_OR_16] = unsupported; 463 464 Table[RTLIB::ATOMIC_FETCH_XOR_1] = unsupported; 465 Table[RTLIB::ATOMIC_FETCH_XOR_2] = unsupported; 466 Table[RTLIB::ATOMIC_FETCH_XOR_4] = unsupported; 467 Table[RTLIB::ATOMIC_FETCH_XOR_8] = unsupported; 468 Table[RTLIB::ATOMIC_FETCH_XOR_16] = unsupported; 469 470 Table[RTLIB::ATOMIC_FETCH_NAND_1] = unsupported; 471 Table[RTLIB::ATOMIC_FETCH_NAND_2] = unsupported; 472 Table[RTLIB::ATOMIC_FETCH_NAND_4] = unsupported; 473 Table[RTLIB::ATOMIC_FETCH_NAND_8] = unsupported; 474 Table[RTLIB::ATOMIC_FETCH_NAND_16] = unsupported; 475 } 476 }; 477 478 ManagedStatic<RuntimeLibcallSignatureTable> RuntimeLibcallSignatures; 479 480 // Maps libcall names to their RTLIB::Libcall number. Builds the map in a 481 // constructor for use with ManagedStatic 482 struct StaticLibcallNameMap { 483 StringMap<RTLIB::Libcall> Map; 484 StaticLibcallNameMap() { 485 static const std::pair<const char *, RTLIB::Libcall> NameLibcalls[] = { 486 #define HANDLE_LIBCALL(code, name) {(const char *)name, RTLIB::code}, 487 #include "llvm/IR/RuntimeLibcalls.def" 488 #undef HANDLE_LIBCALL 489 }; 490 for (const auto &NameLibcall : NameLibcalls) { 491 if (NameLibcall.first != nullptr && 492 RuntimeLibcallSignatures->Table[NameLibcall.second] != unsupported) { 493 assert(Map.find(NameLibcall.first) == Map.end() && 494 "duplicate libcall names in name map"); 495 Map[NameLibcall.first] = NameLibcall.second; 496 } 497 } 498 // Override the __gnu_f2h_ieee/__gnu_h2f_ieee names so that the f32 name is 499 // consistent with the f64 and f128 names. 500 Map["__extendhfsf2"] = RTLIB::FPEXT_F16_F32; 501 Map["__truncsfhf2"] = RTLIB::FPROUND_F32_F16; 502 } 503 }; 504 505 } // end anonymous namespace 506 507 void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget, 508 RTLIB::Libcall LC, 509 SmallVectorImpl<wasm::ValType> &Rets, 510 SmallVectorImpl<wasm::ValType> &Params) { 511 assert(Rets.empty()); 512 assert(Params.empty()); 513 514 wasm::ValType PtrTy = 515 Subtarget.hasAddr64() ? wasm::ValType::I64 : wasm::ValType::I32; 516 517 auto &Table = RuntimeLibcallSignatures->Table; 518 switch (Table[LC]) { 519 case func: 520 break; 521 case f32_func_f32: 522 Rets.push_back(wasm::ValType::F32); 523 Params.push_back(wasm::ValType::F32); 524 break; 525 case f32_func_f64: 526 Rets.push_back(wasm::ValType::F32); 527 Params.push_back(wasm::ValType::F64); 528 break; 529 case f32_func_i32: 530 Rets.push_back(wasm::ValType::F32); 531 Params.push_back(wasm::ValType::I32); 532 break; 533 case f32_func_i64: 534 Rets.push_back(wasm::ValType::F32); 535 Params.push_back(wasm::ValType::I64); 536 break; 537 case f32_func_i16: 538 Rets.push_back(wasm::ValType::F32); 539 Params.push_back(wasm::ValType::I32); 540 break; 541 case f64_func_f32: 542 Rets.push_back(wasm::ValType::F64); 543 Params.push_back(wasm::ValType::F32); 544 break; 545 case f64_func_f64: 546 Rets.push_back(wasm::ValType::F64); 547 Params.push_back(wasm::ValType::F64); 548 break; 549 case f64_func_i32: 550 Rets.push_back(wasm::ValType::F64); 551 Params.push_back(wasm::ValType::I32); 552 break; 553 case f64_func_i64: 554 Rets.push_back(wasm::ValType::F64); 555 Params.push_back(wasm::ValType::I64); 556 break; 557 case i32_func_f32: 558 Rets.push_back(wasm::ValType::I32); 559 Params.push_back(wasm::ValType::F32); 560 break; 561 case i32_func_f64: 562 Rets.push_back(wasm::ValType::I32); 563 Params.push_back(wasm::ValType::F64); 564 break; 565 case i32_func_i32: 566 Rets.push_back(wasm::ValType::I32); 567 Params.push_back(wasm::ValType::I32); 568 break; 569 case i64_func_f32: 570 Rets.push_back(wasm::ValType::I64); 571 Params.push_back(wasm::ValType::F32); 572 break; 573 case i64_func_f64: 574 Rets.push_back(wasm::ValType::I64); 575 Params.push_back(wasm::ValType::F64); 576 break; 577 case i64_func_i64: 578 Rets.push_back(wasm::ValType::I64); 579 Params.push_back(wasm::ValType::I64); 580 break; 581 case f32_func_f32_f32: 582 Rets.push_back(wasm::ValType::F32); 583 Params.push_back(wasm::ValType::F32); 584 Params.push_back(wasm::ValType::F32); 585 break; 586 case f32_func_f32_i32: 587 Rets.push_back(wasm::ValType::F32); 588 Params.push_back(wasm::ValType::F32); 589 Params.push_back(wasm::ValType::I32); 590 break; 591 case f32_func_i64_i64: 592 Rets.push_back(wasm::ValType::F32); 593 Params.push_back(wasm::ValType::I64); 594 Params.push_back(wasm::ValType::I64); 595 break; 596 case f64_func_f64_f64: 597 Rets.push_back(wasm::ValType::F64); 598 Params.push_back(wasm::ValType::F64); 599 Params.push_back(wasm::ValType::F64); 600 break; 601 case f64_func_f64_i32: 602 Rets.push_back(wasm::ValType::F64); 603 Params.push_back(wasm::ValType::F64); 604 Params.push_back(wasm::ValType::I32); 605 break; 606 case f64_func_i64_i64: 607 Rets.push_back(wasm::ValType::F64); 608 Params.push_back(wasm::ValType::I64); 609 Params.push_back(wasm::ValType::I64); 610 break; 611 case i16_func_f32: 612 Rets.push_back(wasm::ValType::I32); 613 Params.push_back(wasm::ValType::F32); 614 break; 615 case i16_func_f64: 616 Rets.push_back(wasm::ValType::I32); 617 Params.push_back(wasm::ValType::F64); 618 break; 619 case i16_func_i64_i64: 620 Rets.push_back(wasm::ValType::I32); 621 Params.push_back(wasm::ValType::I64); 622 Params.push_back(wasm::ValType::I64); 623 break; 624 case i8_func_i8_i8: 625 Rets.push_back(wasm::ValType::I32); 626 Params.push_back(wasm::ValType::I32); 627 Params.push_back(wasm::ValType::I32); 628 break; 629 case func_f32_iPTR_iPTR: 630 Params.push_back(wasm::ValType::F32); 631 Params.push_back(PtrTy); 632 Params.push_back(PtrTy); 633 break; 634 case func_f64_iPTR_iPTR: 635 Params.push_back(wasm::ValType::F64); 636 Params.push_back(PtrTy); 637 Params.push_back(PtrTy); 638 break; 639 case i16_func_i16_i16: 640 Rets.push_back(wasm::ValType::I32); 641 Params.push_back(wasm::ValType::I32); 642 Params.push_back(wasm::ValType::I32); 643 break; 644 case i32_func_f32_f32: 645 Rets.push_back(wasm::ValType::I32); 646 Params.push_back(wasm::ValType::F32); 647 Params.push_back(wasm::ValType::F32); 648 break; 649 case i32_func_f64_f64: 650 Rets.push_back(wasm::ValType::I32); 651 Params.push_back(wasm::ValType::F64); 652 Params.push_back(wasm::ValType::F64); 653 break; 654 case i32_func_i32_i32: 655 Rets.push_back(wasm::ValType::I32); 656 Params.push_back(wasm::ValType::I32); 657 Params.push_back(wasm::ValType::I32); 658 break; 659 case i32_func_i32_i32_iPTR: 660 Rets.push_back(wasm::ValType::I32); 661 Params.push_back(wasm::ValType::I32); 662 Params.push_back(wasm::ValType::I32); 663 Params.push_back(PtrTy); 664 break; 665 case i64_func_i64_i64: 666 Rets.push_back(wasm::ValType::I64); 667 Params.push_back(wasm::ValType::I64); 668 Params.push_back(wasm::ValType::I64); 669 break; 670 case i64_func_i64_i64_iPTR: 671 Rets.push_back(wasm::ValType::I64); 672 Params.push_back(wasm::ValType::I64); 673 Params.push_back(wasm::ValType::I64); 674 Params.push_back(PtrTy); 675 break; 676 case i64_i64_func_f32: 677 #if 0 // TODO: Enable this when wasm gets multiple-return-value support. 678 Rets.push_back(wasm::ValType::I64); 679 Rets.push_back(wasm::ValType::I64); 680 #else 681 Params.push_back(PtrTy); 682 #endif 683 Params.push_back(wasm::ValType::F32); 684 break; 685 case i64_i64_func_f64: 686 #if 0 // TODO: Enable this when wasm gets multiple-return-value support. 687 Rets.push_back(wasm::ValType::I64); 688 Rets.push_back(wasm::ValType::I64); 689 #else 690 Params.push_back(PtrTy); 691 #endif 692 Params.push_back(wasm::ValType::F64); 693 break; 694 case i16_i16_func_i16_i16: 695 #if 0 // TODO: Enable this when wasm gets multiple-return-value support. 696 Rets.push_back(wasm::ValType::I32); 697 Rets.push_back(wasm::ValType::I32); 698 #else 699 Params.push_back(PtrTy); 700 #endif 701 Params.push_back(wasm::ValType::I32); 702 Params.push_back(wasm::ValType::I32); 703 break; 704 case i32_i32_func_i32_i32: 705 #if 0 // TODO: Enable this when wasm gets multiple-return-value support. 706 Rets.push_back(wasm::ValType::I32); 707 Rets.push_back(wasm::ValType::I32); 708 #else 709 Params.push_back(PtrTy); 710 #endif 711 Params.push_back(wasm::ValType::I32); 712 Params.push_back(wasm::ValType::I32); 713 break; 714 case i64_i64_func_i64_i64: 715 #if 0 // TODO: Enable this when wasm gets multiple-return-value support. 716 Rets.push_back(wasm::ValType::I64); 717 Rets.push_back(wasm::ValType::I64); 718 #else 719 Params.push_back(PtrTy); 720 #endif 721 Params.push_back(wasm::ValType::I64); 722 Params.push_back(wasm::ValType::I64); 723 break; 724 case i64_i64_func_i64_i64_i64_i64: 725 #if 0 // TODO: Enable this when wasm gets multiple-return-value support. 726 Rets.push_back(wasm::ValType::I64); 727 Rets.push_back(wasm::ValType::I64); 728 #else 729 Params.push_back(PtrTy); 730 #endif 731 Params.push_back(wasm::ValType::I64); 732 Params.push_back(wasm::ValType::I64); 733 Params.push_back(wasm::ValType::I64); 734 Params.push_back(wasm::ValType::I64); 735 break; 736 case i64_i64_func_i64_i64_i64_i64_iPTR: 737 #if 0 // TODO: Enable this when wasm gets multiple-return-value support. 738 Rets.push_back(wasm::ValType::I64); 739 Rets.push_back(wasm::ValType::I64); 740 #else 741 Params.push_back(PtrTy); 742 #endif 743 Params.push_back(wasm::ValType::I64); 744 Params.push_back(wasm::ValType::I64); 745 Params.push_back(wasm::ValType::I64); 746 Params.push_back(wasm::ValType::I64); 747 Params.push_back(PtrTy); 748 break; 749 case i64_i64_i64_i64_func_i64_i64_i64_i64: 750 #if 0 // TODO: Enable this when wasm gets multiple-return-value support. 751 Rets.push_back(wasm::ValType::I64); 752 Rets.push_back(wasm::ValType::I64); 753 Rets.push_back(wasm::ValType::I64); 754 Rets.push_back(wasm::ValType::I64); 755 #else 756 Params.push_back(PtrTy); 757 #endif 758 Params.push_back(wasm::ValType::I64); 759 Params.push_back(wasm::ValType::I64); 760 Params.push_back(wasm::ValType::I64); 761 Params.push_back(wasm::ValType::I64); 762 break; 763 case i64_i64_func_i64_i64_i32: 764 #if 0 // TODO: Enable this when wasm gets multiple-return-value support. 765 Rets.push_back(wasm::ValType::I64); 766 Rets.push_back(wasm::ValType::I64); 767 Rets.push_back(wasm::ValType::I64); 768 Rets.push_back(wasm::ValType::I64); 769 #else 770 Params.push_back(PtrTy); 771 #endif 772 Params.push_back(wasm::ValType::I64); 773 Params.push_back(wasm::ValType::I64); 774 Params.push_back(wasm::ValType::I32); 775 break; 776 case iPTR_func_iPTR_i32_iPTR: 777 Rets.push_back(PtrTy); 778 Params.push_back(PtrTy); 779 Params.push_back(wasm::ValType::I32); 780 Params.push_back(PtrTy); 781 break; 782 case iPTR_func_iPTR_iPTR_iPTR: 783 Rets.push_back(PtrTy); 784 Params.push_back(PtrTy); 785 Params.push_back(PtrTy); 786 Params.push_back(PtrTy); 787 break; 788 case f32_func_f32_f32_f32: 789 Rets.push_back(wasm::ValType::F32); 790 Params.push_back(wasm::ValType::F32); 791 Params.push_back(wasm::ValType::F32); 792 Params.push_back(wasm::ValType::F32); 793 break; 794 case f64_func_f64_f64_f64: 795 Rets.push_back(wasm::ValType::F64); 796 Params.push_back(wasm::ValType::F64); 797 Params.push_back(wasm::ValType::F64); 798 Params.push_back(wasm::ValType::F64); 799 break; 800 case func_i64_i64_iPTR_iPTR: 801 Params.push_back(wasm::ValType::I64); 802 Params.push_back(wasm::ValType::I64); 803 Params.push_back(PtrTy); 804 Params.push_back(PtrTy); 805 break; 806 case func_iPTR_f32: 807 Params.push_back(PtrTy); 808 Params.push_back(wasm::ValType::F32); 809 break; 810 case func_iPTR_f64: 811 Params.push_back(PtrTy); 812 Params.push_back(wasm::ValType::F64); 813 break; 814 case func_iPTR_i32: 815 Params.push_back(PtrTy); 816 Params.push_back(wasm::ValType::I32); 817 break; 818 case func_iPTR_i64: 819 Params.push_back(PtrTy); 820 Params.push_back(wasm::ValType::I64); 821 break; 822 case func_iPTR_i64_i64: 823 Params.push_back(PtrTy); 824 Params.push_back(wasm::ValType::I64); 825 Params.push_back(wasm::ValType::I64); 826 break; 827 case func_iPTR_i64_i64_i64_i64: 828 Params.push_back(PtrTy); 829 Params.push_back(wasm::ValType::I64); 830 Params.push_back(wasm::ValType::I64); 831 Params.push_back(wasm::ValType::I64); 832 Params.push_back(wasm::ValType::I64); 833 break; 834 case func_iPTR_i64_i64_i64_i64_i64_i64: 835 Params.push_back(PtrTy); 836 Params.push_back(wasm::ValType::I64); 837 Params.push_back(wasm::ValType::I64); 838 Params.push_back(wasm::ValType::I64); 839 Params.push_back(wasm::ValType::I64); 840 Params.push_back(wasm::ValType::I64); 841 Params.push_back(wasm::ValType::I64); 842 break; 843 case i32_func_i64_i64: 844 Rets.push_back(wasm::ValType::I32); 845 Params.push_back(wasm::ValType::I64); 846 Params.push_back(wasm::ValType::I64); 847 break; 848 case i32_func_i64_i64_i64_i64: 849 Rets.push_back(wasm::ValType::I32); 850 Params.push_back(wasm::ValType::I64); 851 Params.push_back(wasm::ValType::I64); 852 Params.push_back(wasm::ValType::I64); 853 Params.push_back(wasm::ValType::I64); 854 break; 855 case iPTR_func_f32: 856 Rets.push_back(PtrTy); 857 Params.push_back(wasm::ValType::F32); 858 break; 859 case iPTR_func_f64: 860 Rets.push_back(PtrTy); 861 Params.push_back(wasm::ValType::F64); 862 break; 863 case iPTR_func_i64_i64: 864 Rets.push_back(PtrTy); 865 Params.push_back(wasm::ValType::I64); 866 Params.push_back(wasm::ValType::I64); 867 break; 868 case unsupported: 869 llvm_unreachable("unsupported runtime library signature"); 870 } 871 } 872 873 static ManagedStatic<StaticLibcallNameMap> LibcallNameMap; 874 // TODO: If the RTLIB::Libcall-taking flavor of GetSignature remains unsed 875 // other than here, just roll its logic into this version. 876 void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget, 877 const char *Name, 878 SmallVectorImpl<wasm::ValType> &Rets, 879 SmallVectorImpl<wasm::ValType> &Params) { 880 auto &Map = LibcallNameMap->Map; 881 auto Val = Map.find(Name); 882 #ifndef NDEBUG 883 if (Val == Map.end()) { 884 auto message = std::string("unexpected runtime library name: ") + Name; 885 llvm_unreachable(message.c_str()); 886 } 887 #endif 888 return getLibcallSignature(Subtarget, Val->second, Rets, Params); 889 } 890