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 25 using namespace llvm; 26 27 namespace { 28 29 enum RuntimeLibcallSignature { 30 func, 31 f32_func_f32, 32 f32_func_f64, 33 f32_func_i32, 34 f32_func_i64, 35 f32_func_i16, 36 f64_func_f32, 37 f64_func_f64, 38 f64_func_i32, 39 f64_func_i64, 40 i32_func_f32, 41 i32_func_f64, 42 i32_func_i32, 43 i64_func_f32, 44 i64_func_f64, 45 i64_func_i64, 46 f32_func_f32_f32, 47 f32_func_f32_i32, 48 f32_func_i64_i64, 49 f64_func_f64_f64, 50 f64_func_f64_i32, 51 f64_func_i64_i64, 52 i16_func_f32, 53 i16_func_f64, 54 i16_func_i64_i64, 55 i8_func_i8_i8, 56 func_f32_iPTR_iPTR, 57 func_f64_iPTR_iPTR, 58 i16_func_i16_i16, 59 i32_func_f32_f32, 60 i32_func_f64_f64, 61 i32_func_i32_i32, 62 i32_func_i32_i32_iPTR, 63 i64_func_i64_i64, 64 i64_func_i64_i64_iPTR, 65 i64_i64_func_i32, 66 i64_i64_func_i64, 67 i64_i64_func_f32, 68 i64_i64_func_f64, 69 i16_i16_func_i16_i16, 70 i32_i32_func_i32_i32, 71 i64_i64_func_i64_i64, 72 i64_i64_func_i64_i64_i64_i64, 73 i64_i64_func_i64_i64_i64_i64_iPTR, 74 i64_i64_i64_i64_func_i64_i64_i64_i64, 75 i64_i64_func_i64_i64_i32, 76 i64_i64_func_i64_i64_i64_i64_i64_i64, 77 iPTR_func_i32, 78 iPTR_func_iPTR_i32_iPTR, 79 iPTR_func_iPTR_iPTR_iPTR, 80 f32_func_f32_f32_f32, 81 f64_func_f64_f64_f64, 82 func_i64_i64_iPTR_iPTR, 83 i32_func_i64_i64, 84 i32_func_i64_i64_i64_i64, 85 iPTR_func_f32, 86 iPTR_func_f64, 87 iPTR_func_i64_i64, 88 unsupported 89 }; 90 91 struct RuntimeLibcallSignatureTable { 92 std::vector<RuntimeLibcallSignature> Table; 93 94 // Any newly-added libcalls will be unsupported by default. 95 RuntimeLibcallSignatureTable() : Table(RTLIB::UNKNOWN_LIBCALL, unsupported) { 96 // Integer 97 Table[RTLIB::SHL_I16] = i16_func_i16_i16; 98 Table[RTLIB::SHL_I32] = i32_func_i32_i32; 99 Table[RTLIB::SHL_I64] = i64_func_i64_i64; 100 Table[RTLIB::SHL_I128] = i64_i64_func_i64_i64_i32; 101 Table[RTLIB::SRL_I16] = i16_func_i16_i16; 102 Table[RTLIB::SRL_I32] = i32_func_i32_i32; 103 Table[RTLIB::SRL_I64] = i64_func_i64_i64; 104 Table[RTLIB::SRL_I128] = i64_i64_func_i64_i64_i32; 105 Table[RTLIB::SRA_I16] = i16_func_i16_i16; 106 Table[RTLIB::SRA_I32] = i32_func_i32_i32; 107 Table[RTLIB::SRA_I64] = i64_func_i64_i64; 108 Table[RTLIB::SRA_I128] = i64_i64_func_i64_i64_i32; 109 Table[RTLIB::MUL_I8] = i8_func_i8_i8; 110 Table[RTLIB::MUL_I16] = i16_func_i16_i16; 111 Table[RTLIB::MUL_I32] = i32_func_i32_i32; 112 Table[RTLIB::MUL_I64] = i64_func_i64_i64; 113 Table[RTLIB::MUL_I128] = i64_i64_func_i64_i64_i64_i64; 114 Table[RTLIB::MULO_I32] = i32_func_i32_i32_iPTR; 115 Table[RTLIB::MULO_I64] = i64_func_i64_i64_iPTR; 116 Table[RTLIB::MULO_I128] = i64_i64_func_i64_i64_i64_i64_iPTR; 117 Table[RTLIB::SDIV_I8] = i8_func_i8_i8; 118 Table[RTLIB::SDIV_I16] = i16_func_i16_i16; 119 Table[RTLIB::SDIV_I32] = i32_func_i32_i32; 120 Table[RTLIB::SDIV_I64] = i64_func_i64_i64; 121 Table[RTLIB::SDIV_I128] = i64_i64_func_i64_i64_i64_i64; 122 Table[RTLIB::UDIV_I8] = i8_func_i8_i8; 123 Table[RTLIB::UDIV_I16] = i16_func_i16_i16; 124 Table[RTLIB::UDIV_I32] = i32_func_i32_i32; 125 Table[RTLIB::UDIV_I64] = i64_func_i64_i64; 126 Table[RTLIB::UDIV_I128] = i64_i64_func_i64_i64_i64_i64; 127 Table[RTLIB::SREM_I8] = i8_func_i8_i8; 128 Table[RTLIB::SREM_I16] = i16_func_i16_i16; 129 Table[RTLIB::SREM_I32] = i32_func_i32_i32; 130 Table[RTLIB::SREM_I64] = i64_func_i64_i64; 131 Table[RTLIB::SREM_I128] = i64_i64_func_i64_i64_i64_i64; 132 Table[RTLIB::UREM_I8] = i8_func_i8_i8; 133 Table[RTLIB::UREM_I16] = i16_func_i16_i16; 134 Table[RTLIB::UREM_I32] = i32_func_i32_i32; 135 Table[RTLIB::UREM_I64] = i64_func_i64_i64; 136 Table[RTLIB::UREM_I128] = i64_i64_func_i64_i64_i64_i64; 137 Table[RTLIB::SDIVREM_I8] = i8_func_i8_i8; 138 Table[RTLIB::SDIVREM_I16] = i16_i16_func_i16_i16; 139 Table[RTLIB::SDIVREM_I32] = i32_i32_func_i32_i32; 140 Table[RTLIB::SDIVREM_I64] = i64_func_i64_i64; 141 Table[RTLIB::SDIVREM_I128] = i64_i64_i64_i64_func_i64_i64_i64_i64; 142 Table[RTLIB::UDIVREM_I8] = i8_func_i8_i8; 143 Table[RTLIB::UDIVREM_I16] = i16_i16_func_i16_i16; 144 Table[RTLIB::UDIVREM_I32] = i32_i32_func_i32_i32; 145 Table[RTLIB::UDIVREM_I64] = i64_i64_func_i64_i64; 146 Table[RTLIB::UDIVREM_I128] = i64_i64_i64_i64_func_i64_i64_i64_i64; 147 Table[RTLIB::NEG_I32] = i32_func_i32; 148 Table[RTLIB::NEG_I64] = i64_func_i64; 149 150 // Floating-point. 151 // All F80 and PPCF128 routines are unsupported. 152 Table[RTLIB::ADD_F32] = f32_func_f32_f32; 153 Table[RTLIB::ADD_F64] = f64_func_f64_f64; 154 Table[RTLIB::ADD_F128] = i64_i64_func_i64_i64_i64_i64; 155 Table[RTLIB::SUB_F32] = f32_func_f32_f32; 156 Table[RTLIB::SUB_F64] = f64_func_f64_f64; 157 Table[RTLIB::SUB_F128] = i64_i64_func_i64_i64_i64_i64; 158 Table[RTLIB::MUL_F32] = f32_func_f32_f32; 159 Table[RTLIB::MUL_F64] = f64_func_f64_f64; 160 Table[RTLIB::MUL_F128] = i64_i64_func_i64_i64_i64_i64; 161 Table[RTLIB::DIV_F32] = f32_func_f32_f32; 162 Table[RTLIB::DIV_F64] = f64_func_f64_f64; 163 Table[RTLIB::DIV_F128] = i64_i64_func_i64_i64_i64_i64; 164 Table[RTLIB::REM_F32] = f32_func_f32_f32; 165 Table[RTLIB::REM_F64] = f64_func_f64_f64; 166 Table[RTLIB::REM_F128] = i64_i64_func_i64_i64_i64_i64; 167 Table[RTLIB::FMA_F32] = f32_func_f32_f32_f32; 168 Table[RTLIB::FMA_F64] = f64_func_f64_f64_f64; 169 Table[RTLIB::FMA_F128] = i64_i64_func_i64_i64_i64_i64_i64_i64; 170 Table[RTLIB::POWI_F32] = f32_func_f32_i32; 171 Table[RTLIB::POWI_F64] = f64_func_f64_i32; 172 Table[RTLIB::POWI_F128] = i64_i64_func_i64_i64_i32; 173 Table[RTLIB::SQRT_F32] = f32_func_f32; 174 Table[RTLIB::SQRT_F64] = f64_func_f64; 175 Table[RTLIB::SQRT_F128] = i64_i64_func_i64_i64; 176 Table[RTLIB::CBRT_F32] = f32_func_f32; 177 Table[RTLIB::CBRT_F64] = f64_func_f64; 178 Table[RTLIB::CBRT_F128] = i64_i64_func_i64_i64; 179 Table[RTLIB::LOG_F32] = f32_func_f32; 180 Table[RTLIB::LOG_F64] = f64_func_f64; 181 Table[RTLIB::LOG_F128] = i64_i64_func_i64_i64; 182 Table[RTLIB::LOG2_F32] = f32_func_f32; 183 Table[RTLIB::LOG2_F64] = f64_func_f64; 184 Table[RTLIB::LOG2_F128] = i64_i64_func_i64_i64; 185 Table[RTLIB::LOG10_F32] = f32_func_f32; 186 Table[RTLIB::LOG10_F64] = f64_func_f64; 187 Table[RTLIB::LOG10_F128] = i64_i64_func_i64_i64; 188 Table[RTLIB::EXP_F32] = f32_func_f32; 189 Table[RTLIB::EXP_F64] = f64_func_f64; 190 Table[RTLIB::EXP_F128] = i64_i64_func_i64_i64; 191 Table[RTLIB::EXP2_F32] = f32_func_f32; 192 Table[RTLIB::EXP2_F64] = f64_func_f64; 193 Table[RTLIB::EXP2_F128] = i64_i64_func_i64_i64; 194 Table[RTLIB::SIN_F32] = f32_func_f32; 195 Table[RTLIB::SIN_F64] = f64_func_f64; 196 Table[RTLIB::SIN_F128] = i64_i64_func_i64_i64; 197 Table[RTLIB::COS_F32] = f32_func_f32; 198 Table[RTLIB::COS_F64] = f64_func_f64; 199 Table[RTLIB::COS_F128] = i64_i64_func_i64_i64; 200 Table[RTLIB::SINCOS_F32] = func_f32_iPTR_iPTR; 201 Table[RTLIB::SINCOS_F64] = func_f64_iPTR_iPTR; 202 Table[RTLIB::SINCOS_F128] = func_i64_i64_iPTR_iPTR; 203 Table[RTLIB::POW_F32] = f32_func_f32_f32; 204 Table[RTLIB::POW_F64] = f64_func_f64_f64; 205 Table[RTLIB::POW_F128] = i64_i64_func_i64_i64_i64_i64; 206 Table[RTLIB::CEIL_F32] = f32_func_f32; 207 Table[RTLIB::CEIL_F64] = f64_func_f64; 208 Table[RTLIB::CEIL_F128] = i64_i64_func_i64_i64; 209 Table[RTLIB::TRUNC_F32] = f32_func_f32; 210 Table[RTLIB::TRUNC_F64] = f64_func_f64; 211 Table[RTLIB::TRUNC_F128] = i64_i64_func_i64_i64; 212 Table[RTLIB::RINT_F32] = f32_func_f32; 213 Table[RTLIB::RINT_F64] = f64_func_f64; 214 Table[RTLIB::RINT_F128] = i64_i64_func_i64_i64; 215 Table[RTLIB::NEARBYINT_F32] = f32_func_f32; 216 Table[RTLIB::NEARBYINT_F64] = f64_func_f64; 217 Table[RTLIB::NEARBYINT_F128] = i64_i64_func_i64_i64; 218 Table[RTLIB::ROUND_F32] = f32_func_f32; 219 Table[RTLIB::ROUND_F64] = f64_func_f64; 220 Table[RTLIB::ROUND_F128] = i64_i64_func_i64_i64; 221 Table[RTLIB::LROUND_F32] = iPTR_func_f32; 222 Table[RTLIB::LROUND_F64] = iPTR_func_f64; 223 Table[RTLIB::LROUND_F128] = iPTR_func_i64_i64; 224 Table[RTLIB::LLROUND_F32] = i64_func_f32; 225 Table[RTLIB::LLROUND_F64] = i64_func_f64; 226 Table[RTLIB::LLROUND_F128] = i64_func_i64_i64; 227 Table[RTLIB::LRINT_F32] = iPTR_func_f32; 228 Table[RTLIB::LRINT_F64] = iPTR_func_f64; 229 Table[RTLIB::LRINT_F128] = iPTR_func_i64_i64; 230 Table[RTLIB::LLRINT_F32] = i64_func_f32; 231 Table[RTLIB::LLRINT_F64] = i64_func_f64; 232 Table[RTLIB::LLRINT_F128] = i64_func_i64_i64; 233 Table[RTLIB::FLOOR_F32] = f32_func_f32; 234 Table[RTLIB::FLOOR_F64] = f64_func_f64; 235 Table[RTLIB::FLOOR_F128] = i64_i64_func_i64_i64; 236 Table[RTLIB::COPYSIGN_F32] = f32_func_f32_f32; 237 Table[RTLIB::COPYSIGN_F64] = f64_func_f64_f64; 238 Table[RTLIB::COPYSIGN_F128] = i64_i64_func_i64_i64_i64_i64; 239 Table[RTLIB::FMIN_F32] = f32_func_f32_f32; 240 Table[RTLIB::FMIN_F64] = f64_func_f64_f64; 241 Table[RTLIB::FMIN_F128] = i64_i64_func_i64_i64_i64_i64; 242 Table[RTLIB::FMAX_F32] = f32_func_f32_f32; 243 Table[RTLIB::FMAX_F64] = f64_func_f64_f64; 244 Table[RTLIB::FMAX_F128] = i64_i64_func_i64_i64_i64_i64; 245 246 // Conversion 247 // All F80 and PPCF128 routines are unsupported. 248 Table[RTLIB::FPEXT_F64_F128] = i64_i64_func_f64; 249 Table[RTLIB::FPEXT_F32_F128] = i64_i64_func_f32; 250 Table[RTLIB::FPEXT_F32_F64] = f64_func_f32; 251 Table[RTLIB::FPEXT_F16_F32] = f32_func_i16; 252 Table[RTLIB::FPROUND_F32_F16] = i16_func_f32; 253 Table[RTLIB::FPROUND_F64_F16] = i16_func_f64; 254 Table[RTLIB::FPROUND_F64_F32] = f32_func_f64; 255 Table[RTLIB::FPROUND_F128_F16] = i16_func_i64_i64; 256 Table[RTLIB::FPROUND_F128_F32] = f32_func_i64_i64; 257 Table[RTLIB::FPROUND_F128_F64] = f64_func_i64_i64; 258 Table[RTLIB::FPTOSINT_F32_I32] = i32_func_f32; 259 Table[RTLIB::FPTOSINT_F32_I64] = i64_func_f32; 260 Table[RTLIB::FPTOSINT_F32_I128] = i64_i64_func_f32; 261 Table[RTLIB::FPTOSINT_F64_I32] = i32_func_f64; 262 Table[RTLIB::FPTOSINT_F64_I64] = i64_func_f64; 263 Table[RTLIB::FPTOSINT_F64_I128] = i64_i64_func_f64; 264 Table[RTLIB::FPTOSINT_F128_I32] = i32_func_i64_i64; 265 Table[RTLIB::FPTOSINT_F128_I64] = i64_func_i64_i64; 266 Table[RTLIB::FPTOSINT_F128_I128] = i64_i64_func_i64_i64; 267 Table[RTLIB::FPTOUINT_F32_I32] = i32_func_f32; 268 Table[RTLIB::FPTOUINT_F32_I64] = i64_func_f32; 269 Table[RTLIB::FPTOUINT_F32_I128] = i64_i64_func_f32; 270 Table[RTLIB::FPTOUINT_F64_I32] = i32_func_f64; 271 Table[RTLIB::FPTOUINT_F64_I64] = i64_func_f64; 272 Table[RTLIB::FPTOUINT_F64_I128] = i64_i64_func_f64; 273 Table[RTLIB::FPTOUINT_F128_I32] = i32_func_i64_i64; 274 Table[RTLIB::FPTOUINT_F128_I64] = i64_func_i64_i64; 275 Table[RTLIB::FPTOUINT_F128_I128] = i64_i64_func_i64_i64; 276 Table[RTLIB::SINTTOFP_I32_F32] = f32_func_i32; 277 Table[RTLIB::SINTTOFP_I32_F64] = f64_func_i32; 278 Table[RTLIB::SINTTOFP_I32_F128] = i64_i64_func_i32; 279 Table[RTLIB::SINTTOFP_I64_F32] = f32_func_i64; 280 Table[RTLIB::SINTTOFP_I64_F64] = f64_func_i64; 281 Table[RTLIB::SINTTOFP_I64_F128] = i64_i64_func_i64; 282 Table[RTLIB::SINTTOFP_I128_F32] = f32_func_i64_i64; 283 Table[RTLIB::SINTTOFP_I128_F64] = f64_func_i64_i64; 284 Table[RTLIB::SINTTOFP_I128_F128] = i64_i64_func_i64_i64; 285 Table[RTLIB::UINTTOFP_I32_F32] = f32_func_i32; 286 Table[RTLIB::UINTTOFP_I32_F64] = f64_func_i64; 287 Table[RTLIB::UINTTOFP_I32_F128] = i64_i64_func_i32; 288 Table[RTLIB::UINTTOFP_I64_F32] = f32_func_i64; 289 Table[RTLIB::UINTTOFP_I64_F64] = f64_func_i64; 290 Table[RTLIB::UINTTOFP_I64_F128] = i64_i64_func_i64; 291 Table[RTLIB::UINTTOFP_I128_F32] = f32_func_i64_i64; 292 Table[RTLIB::UINTTOFP_I128_F64] = f64_func_i64_i64; 293 Table[RTLIB::UINTTOFP_I128_F128] = i64_i64_func_i64_i64; 294 295 // Comparison 296 // ALl F80 and PPCF128 routines are unsupported. 297 Table[RTLIB::OEQ_F32] = i32_func_f32_f32; 298 Table[RTLIB::OEQ_F64] = i32_func_f64_f64; 299 Table[RTLIB::OEQ_F128] = i32_func_i64_i64_i64_i64; 300 Table[RTLIB::UNE_F32] = i32_func_f32_f32; 301 Table[RTLIB::UNE_F64] = i32_func_f64_f64; 302 Table[RTLIB::UNE_F128] = i32_func_i64_i64_i64_i64; 303 Table[RTLIB::OGE_F32] = i32_func_f32_f32; 304 Table[RTLIB::OGE_F64] = i32_func_f64_f64; 305 Table[RTLIB::OGE_F128] = i32_func_i64_i64_i64_i64; 306 Table[RTLIB::OLT_F32] = i32_func_f32_f32; 307 Table[RTLIB::OLT_F64] = i32_func_f64_f64; 308 Table[RTLIB::OLT_F128] = i32_func_i64_i64_i64_i64; 309 Table[RTLIB::OLE_F32] = i32_func_f32_f32; 310 Table[RTLIB::OLE_F64] = i32_func_f64_f64; 311 Table[RTLIB::OLE_F128] = i32_func_i64_i64_i64_i64; 312 Table[RTLIB::OGT_F32] = i32_func_f32_f32; 313 Table[RTLIB::OGT_F64] = i32_func_f64_f64; 314 Table[RTLIB::OGT_F128] = i32_func_i64_i64_i64_i64; 315 Table[RTLIB::UO_F32] = i32_func_f32_f32; 316 Table[RTLIB::UO_F64] = i32_func_f64_f64; 317 Table[RTLIB::UO_F128] = i32_func_i64_i64_i64_i64; 318 319 // Memory 320 Table[RTLIB::MEMCPY] = iPTR_func_iPTR_iPTR_iPTR; 321 Table[RTLIB::MEMSET] = iPTR_func_iPTR_i32_iPTR; 322 Table[RTLIB::MEMMOVE] = iPTR_func_iPTR_iPTR_iPTR; 323 324 // __stack_chk_fail 325 Table[RTLIB::STACKPROTECTOR_CHECK_FAIL] = func; 326 327 // Return address handling 328 Table[RTLIB::RETURN_ADDRESS] = iPTR_func_i32; 329 330 // Element-wise Atomic memory 331 // TODO: Fix these when we implement atomic support 332 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_1] = unsupported; 333 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_2] = unsupported; 334 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_4] = unsupported; 335 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_8] = unsupported; 336 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_16] = unsupported; 337 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_1] = unsupported; 338 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_2] = unsupported; 339 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_4] = unsupported; 340 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_8] = unsupported; 341 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_16] = unsupported; 342 343 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_1] = unsupported; 344 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_2] = unsupported; 345 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_4] = unsupported; 346 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_8] = unsupported; 347 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_16] = unsupported; 348 349 // Atomic '__sync_*' libcalls. 350 // TODO: Fix these when we implement atomic support 351 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_1] = unsupported; 352 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_2] = unsupported; 353 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_4] = unsupported; 354 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_8] = unsupported; 355 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_16] = unsupported; 356 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_1] = unsupported; 357 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_2] = unsupported; 358 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_4] = unsupported; 359 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_8] = unsupported; 360 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_16] = unsupported; 361 Table[RTLIB::SYNC_FETCH_AND_ADD_1] = unsupported; 362 Table[RTLIB::SYNC_FETCH_AND_ADD_2] = unsupported; 363 Table[RTLIB::SYNC_FETCH_AND_ADD_4] = unsupported; 364 Table[RTLIB::SYNC_FETCH_AND_ADD_8] = unsupported; 365 Table[RTLIB::SYNC_FETCH_AND_ADD_16] = unsupported; 366 Table[RTLIB::SYNC_FETCH_AND_SUB_1] = unsupported; 367 Table[RTLIB::SYNC_FETCH_AND_SUB_2] = unsupported; 368 Table[RTLIB::SYNC_FETCH_AND_SUB_4] = unsupported; 369 Table[RTLIB::SYNC_FETCH_AND_SUB_8] = unsupported; 370 Table[RTLIB::SYNC_FETCH_AND_SUB_16] = unsupported; 371 Table[RTLIB::SYNC_FETCH_AND_AND_1] = unsupported; 372 Table[RTLIB::SYNC_FETCH_AND_AND_2] = unsupported; 373 Table[RTLIB::SYNC_FETCH_AND_AND_4] = unsupported; 374 Table[RTLIB::SYNC_FETCH_AND_AND_8] = unsupported; 375 Table[RTLIB::SYNC_FETCH_AND_AND_16] = unsupported; 376 Table[RTLIB::SYNC_FETCH_AND_OR_1] = unsupported; 377 Table[RTLIB::SYNC_FETCH_AND_OR_2] = unsupported; 378 Table[RTLIB::SYNC_FETCH_AND_OR_4] = unsupported; 379 Table[RTLIB::SYNC_FETCH_AND_OR_8] = unsupported; 380 Table[RTLIB::SYNC_FETCH_AND_OR_16] = unsupported; 381 Table[RTLIB::SYNC_FETCH_AND_XOR_1] = unsupported; 382 Table[RTLIB::SYNC_FETCH_AND_XOR_2] = unsupported; 383 Table[RTLIB::SYNC_FETCH_AND_XOR_4] = unsupported; 384 Table[RTLIB::SYNC_FETCH_AND_XOR_8] = unsupported; 385 Table[RTLIB::SYNC_FETCH_AND_XOR_16] = unsupported; 386 Table[RTLIB::SYNC_FETCH_AND_NAND_1] = unsupported; 387 Table[RTLIB::SYNC_FETCH_AND_NAND_2] = unsupported; 388 Table[RTLIB::SYNC_FETCH_AND_NAND_4] = unsupported; 389 Table[RTLIB::SYNC_FETCH_AND_NAND_8] = unsupported; 390 Table[RTLIB::SYNC_FETCH_AND_NAND_16] = unsupported; 391 Table[RTLIB::SYNC_FETCH_AND_MAX_1] = unsupported; 392 Table[RTLIB::SYNC_FETCH_AND_MAX_2] = unsupported; 393 Table[RTLIB::SYNC_FETCH_AND_MAX_4] = unsupported; 394 Table[RTLIB::SYNC_FETCH_AND_MAX_8] = unsupported; 395 Table[RTLIB::SYNC_FETCH_AND_MAX_16] = unsupported; 396 Table[RTLIB::SYNC_FETCH_AND_UMAX_1] = unsupported; 397 Table[RTLIB::SYNC_FETCH_AND_UMAX_2] = unsupported; 398 Table[RTLIB::SYNC_FETCH_AND_UMAX_4] = unsupported; 399 Table[RTLIB::SYNC_FETCH_AND_UMAX_8] = unsupported; 400 Table[RTLIB::SYNC_FETCH_AND_UMAX_16] = unsupported; 401 Table[RTLIB::SYNC_FETCH_AND_MIN_1] = unsupported; 402 Table[RTLIB::SYNC_FETCH_AND_MIN_2] = unsupported; 403 Table[RTLIB::SYNC_FETCH_AND_MIN_4] = unsupported; 404 Table[RTLIB::SYNC_FETCH_AND_MIN_8] = unsupported; 405 Table[RTLIB::SYNC_FETCH_AND_MIN_16] = unsupported; 406 Table[RTLIB::SYNC_FETCH_AND_UMIN_1] = unsupported; 407 Table[RTLIB::SYNC_FETCH_AND_UMIN_2] = unsupported; 408 Table[RTLIB::SYNC_FETCH_AND_UMIN_4] = unsupported; 409 Table[RTLIB::SYNC_FETCH_AND_UMIN_8] = unsupported; 410 Table[RTLIB::SYNC_FETCH_AND_UMIN_16] = unsupported; 411 412 // Atomic '__atomic_*' libcalls. 413 // TODO: Fix these when we implement atomic support 414 Table[RTLIB::ATOMIC_LOAD] = unsupported; 415 Table[RTLIB::ATOMIC_LOAD_1] = unsupported; 416 Table[RTLIB::ATOMIC_LOAD_2] = unsupported; 417 Table[RTLIB::ATOMIC_LOAD_4] = unsupported; 418 Table[RTLIB::ATOMIC_LOAD_8] = unsupported; 419 Table[RTLIB::ATOMIC_LOAD_16] = unsupported; 420 421 Table[RTLIB::ATOMIC_STORE] = unsupported; 422 Table[RTLIB::ATOMIC_STORE_1] = unsupported; 423 Table[RTLIB::ATOMIC_STORE_2] = unsupported; 424 Table[RTLIB::ATOMIC_STORE_4] = unsupported; 425 Table[RTLIB::ATOMIC_STORE_8] = unsupported; 426 Table[RTLIB::ATOMIC_STORE_16] = unsupported; 427 428 Table[RTLIB::ATOMIC_EXCHANGE] = unsupported; 429 Table[RTLIB::ATOMIC_EXCHANGE_1] = unsupported; 430 Table[RTLIB::ATOMIC_EXCHANGE_2] = unsupported; 431 Table[RTLIB::ATOMIC_EXCHANGE_4] = unsupported; 432 Table[RTLIB::ATOMIC_EXCHANGE_8] = unsupported; 433 Table[RTLIB::ATOMIC_EXCHANGE_16] = unsupported; 434 435 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE] = unsupported; 436 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_1] = unsupported; 437 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_2] = unsupported; 438 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_4] = unsupported; 439 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_8] = unsupported; 440 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_16] = unsupported; 441 442 Table[RTLIB::ATOMIC_FETCH_ADD_1] = unsupported; 443 Table[RTLIB::ATOMIC_FETCH_ADD_2] = unsupported; 444 Table[RTLIB::ATOMIC_FETCH_ADD_4] = unsupported; 445 Table[RTLIB::ATOMIC_FETCH_ADD_8] = unsupported; 446 Table[RTLIB::ATOMIC_FETCH_ADD_16] = unsupported; 447 448 Table[RTLIB::ATOMIC_FETCH_SUB_1] = unsupported; 449 Table[RTLIB::ATOMIC_FETCH_SUB_2] = unsupported; 450 Table[RTLIB::ATOMIC_FETCH_SUB_4] = unsupported; 451 Table[RTLIB::ATOMIC_FETCH_SUB_8] = unsupported; 452 Table[RTLIB::ATOMIC_FETCH_SUB_16] = unsupported; 453 454 Table[RTLIB::ATOMIC_FETCH_AND_1] = unsupported; 455 Table[RTLIB::ATOMIC_FETCH_AND_2] = unsupported; 456 Table[RTLIB::ATOMIC_FETCH_AND_4] = unsupported; 457 Table[RTLIB::ATOMIC_FETCH_AND_8] = unsupported; 458 Table[RTLIB::ATOMIC_FETCH_AND_16] = unsupported; 459 460 Table[RTLIB::ATOMIC_FETCH_OR_1] = unsupported; 461 Table[RTLIB::ATOMIC_FETCH_OR_2] = unsupported; 462 Table[RTLIB::ATOMIC_FETCH_OR_4] = unsupported; 463 Table[RTLIB::ATOMIC_FETCH_OR_8] = unsupported; 464 Table[RTLIB::ATOMIC_FETCH_OR_16] = unsupported; 465 466 Table[RTLIB::ATOMIC_FETCH_XOR_1] = unsupported; 467 Table[RTLIB::ATOMIC_FETCH_XOR_2] = unsupported; 468 Table[RTLIB::ATOMIC_FETCH_XOR_4] = unsupported; 469 Table[RTLIB::ATOMIC_FETCH_XOR_8] = unsupported; 470 Table[RTLIB::ATOMIC_FETCH_XOR_16] = unsupported; 471 472 Table[RTLIB::ATOMIC_FETCH_NAND_1] = unsupported; 473 Table[RTLIB::ATOMIC_FETCH_NAND_2] = unsupported; 474 Table[RTLIB::ATOMIC_FETCH_NAND_4] = unsupported; 475 Table[RTLIB::ATOMIC_FETCH_NAND_8] = unsupported; 476 Table[RTLIB::ATOMIC_FETCH_NAND_16] = unsupported; 477 } 478 }; 479 480 RuntimeLibcallSignatureTable &getRuntimeLibcallSignatures() { 481 static RuntimeLibcallSignatureTable RuntimeLibcallSignatures; 482 return RuntimeLibcallSignatures; 483 } 484 485 // Maps libcall names to their RTLIB::Libcall number. Builds the map in a 486 // constructor for use with a static variable 487 struct StaticLibcallNameMap { 488 StringMap<RTLIB::Libcall> Map; 489 StaticLibcallNameMap() { 490 static const std::pair<const char *, RTLIB::Libcall> NameLibcalls[] = { 491 #define HANDLE_LIBCALL(code, name) {(const char *)name, RTLIB::code}, 492 #include "llvm/IR/RuntimeLibcalls.def" 493 #undef HANDLE_LIBCALL 494 }; 495 for (const auto &NameLibcall : NameLibcalls) { 496 if (NameLibcall.first != nullptr && 497 getRuntimeLibcallSignatures().Table[NameLibcall.second] != 498 unsupported) { 499 assert(!Map.contains(NameLibcall.first) && 500 "duplicate libcall names in name map"); 501 Map[NameLibcall.first] = NameLibcall.second; 502 } 503 } 504 // Override the __gnu_f2h_ieee/__gnu_h2f_ieee names so that the f32 name is 505 // consistent with the f64 and f128 names. 506 Map["__extendhfsf2"] = RTLIB::FPEXT_F16_F32; 507 Map["__truncsfhf2"] = RTLIB::FPROUND_F32_F16; 508 509 Map["emscripten_return_address"] = RTLIB::RETURN_ADDRESS; 510 } 511 }; 512 513 } // end anonymous namespace 514 515 void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget, 516 RTLIB::Libcall LC, 517 SmallVectorImpl<wasm::ValType> &Rets, 518 SmallVectorImpl<wasm::ValType> &Params) { 519 assert(Rets.empty()); 520 assert(Params.empty()); 521 522 wasm::ValType PtrTy = 523 Subtarget.hasAddr64() ? wasm::ValType::I64 : wasm::ValType::I32; 524 525 auto &Table = getRuntimeLibcallSignatures().Table; 526 switch (Table[LC]) { 527 case func: 528 break; 529 case f32_func_f32: 530 Rets.push_back(wasm::ValType::F32); 531 Params.push_back(wasm::ValType::F32); 532 break; 533 case f32_func_f64: 534 Rets.push_back(wasm::ValType::F32); 535 Params.push_back(wasm::ValType::F64); 536 break; 537 case f32_func_i32: 538 Rets.push_back(wasm::ValType::F32); 539 Params.push_back(wasm::ValType::I32); 540 break; 541 case f32_func_i64: 542 Rets.push_back(wasm::ValType::F32); 543 Params.push_back(wasm::ValType::I64); 544 break; 545 case f32_func_i16: 546 Rets.push_back(wasm::ValType::F32); 547 Params.push_back(wasm::ValType::I32); 548 break; 549 case f64_func_f32: 550 Rets.push_back(wasm::ValType::F64); 551 Params.push_back(wasm::ValType::F32); 552 break; 553 case f64_func_f64: 554 Rets.push_back(wasm::ValType::F64); 555 Params.push_back(wasm::ValType::F64); 556 break; 557 case f64_func_i32: 558 Rets.push_back(wasm::ValType::F64); 559 Params.push_back(wasm::ValType::I32); 560 break; 561 case f64_func_i64: 562 Rets.push_back(wasm::ValType::F64); 563 Params.push_back(wasm::ValType::I64); 564 break; 565 case i32_func_f32: 566 Rets.push_back(wasm::ValType::I32); 567 Params.push_back(wasm::ValType::F32); 568 break; 569 case i32_func_f64: 570 Rets.push_back(wasm::ValType::I32); 571 Params.push_back(wasm::ValType::F64); 572 break; 573 case i32_func_i32: 574 Rets.push_back(wasm::ValType::I32); 575 Params.push_back(wasm::ValType::I32); 576 break; 577 case i64_func_f32: 578 Rets.push_back(wasm::ValType::I64); 579 Params.push_back(wasm::ValType::F32); 580 break; 581 case i64_func_f64: 582 Rets.push_back(wasm::ValType::I64); 583 Params.push_back(wasm::ValType::F64); 584 break; 585 case i64_func_i64: 586 Rets.push_back(wasm::ValType::I64); 587 Params.push_back(wasm::ValType::I64); 588 break; 589 case f32_func_f32_f32: 590 Rets.push_back(wasm::ValType::F32); 591 Params.push_back(wasm::ValType::F32); 592 Params.push_back(wasm::ValType::F32); 593 break; 594 case f32_func_f32_i32: 595 Rets.push_back(wasm::ValType::F32); 596 Params.push_back(wasm::ValType::F32); 597 Params.push_back(wasm::ValType::I32); 598 break; 599 case f32_func_i64_i64: 600 Rets.push_back(wasm::ValType::F32); 601 Params.push_back(wasm::ValType::I64); 602 Params.push_back(wasm::ValType::I64); 603 break; 604 case f64_func_f64_f64: 605 Rets.push_back(wasm::ValType::F64); 606 Params.push_back(wasm::ValType::F64); 607 Params.push_back(wasm::ValType::F64); 608 break; 609 case f64_func_f64_i32: 610 Rets.push_back(wasm::ValType::F64); 611 Params.push_back(wasm::ValType::F64); 612 Params.push_back(wasm::ValType::I32); 613 break; 614 case f64_func_i64_i64: 615 Rets.push_back(wasm::ValType::F64); 616 Params.push_back(wasm::ValType::I64); 617 Params.push_back(wasm::ValType::I64); 618 break; 619 case i16_func_f32: 620 Rets.push_back(wasm::ValType::I32); 621 Params.push_back(wasm::ValType::F32); 622 break; 623 case i16_func_f64: 624 Rets.push_back(wasm::ValType::I32); 625 Params.push_back(wasm::ValType::F64); 626 break; 627 case i16_func_i64_i64: 628 Rets.push_back(wasm::ValType::I32); 629 Params.push_back(wasm::ValType::I64); 630 Params.push_back(wasm::ValType::I64); 631 break; 632 case i8_func_i8_i8: 633 Rets.push_back(wasm::ValType::I32); 634 Params.push_back(wasm::ValType::I32); 635 Params.push_back(wasm::ValType::I32); 636 break; 637 case func_f32_iPTR_iPTR: 638 Params.push_back(wasm::ValType::F32); 639 Params.push_back(PtrTy); 640 Params.push_back(PtrTy); 641 break; 642 case func_f64_iPTR_iPTR: 643 Params.push_back(wasm::ValType::F64); 644 Params.push_back(PtrTy); 645 Params.push_back(PtrTy); 646 break; 647 case i16_func_i16_i16: 648 Rets.push_back(wasm::ValType::I32); 649 Params.push_back(wasm::ValType::I32); 650 Params.push_back(wasm::ValType::I32); 651 break; 652 case i32_func_f32_f32: 653 Rets.push_back(wasm::ValType::I32); 654 Params.push_back(wasm::ValType::F32); 655 Params.push_back(wasm::ValType::F32); 656 break; 657 case i32_func_f64_f64: 658 Rets.push_back(wasm::ValType::I32); 659 Params.push_back(wasm::ValType::F64); 660 Params.push_back(wasm::ValType::F64); 661 break; 662 case i32_func_i32_i32: 663 Rets.push_back(wasm::ValType::I32); 664 Params.push_back(wasm::ValType::I32); 665 Params.push_back(wasm::ValType::I32); 666 break; 667 case i32_func_i32_i32_iPTR: 668 Rets.push_back(wasm::ValType::I32); 669 Params.push_back(wasm::ValType::I32); 670 Params.push_back(wasm::ValType::I32); 671 Params.push_back(PtrTy); 672 break; 673 case i64_func_i64_i64: 674 Rets.push_back(wasm::ValType::I64); 675 Params.push_back(wasm::ValType::I64); 676 Params.push_back(wasm::ValType::I64); 677 break; 678 case i64_func_i64_i64_iPTR: 679 Rets.push_back(wasm::ValType::I64); 680 Params.push_back(wasm::ValType::I64); 681 Params.push_back(wasm::ValType::I64); 682 Params.push_back(PtrTy); 683 break; 684 case i64_i64_func_f32: 685 if (Subtarget.hasMultivalue()) { 686 Rets.push_back(wasm::ValType::I64); 687 Rets.push_back(wasm::ValType::I64); 688 } else { 689 Params.push_back(PtrTy); 690 } 691 Params.push_back(wasm::ValType::F32); 692 break; 693 case i64_i64_func_f64: 694 if (Subtarget.hasMultivalue()) { 695 Rets.push_back(wasm::ValType::I64); 696 Rets.push_back(wasm::ValType::I64); 697 } else { 698 Params.push_back(PtrTy); 699 } 700 Params.push_back(wasm::ValType::F64); 701 break; 702 case i16_i16_func_i16_i16: 703 if (Subtarget.hasMultivalue()) { 704 Rets.push_back(wasm::ValType::I32); 705 Rets.push_back(wasm::ValType::I32); 706 } else { 707 Params.push_back(PtrTy); 708 } 709 Params.push_back(wasm::ValType::I32); 710 Params.push_back(wasm::ValType::I32); 711 break; 712 case i32_i32_func_i32_i32: 713 if (Subtarget.hasMultivalue()) { 714 Rets.push_back(wasm::ValType::I32); 715 Rets.push_back(wasm::ValType::I32); 716 } else { 717 Params.push_back(PtrTy); 718 } 719 Params.push_back(wasm::ValType::I32); 720 Params.push_back(wasm::ValType::I32); 721 break; 722 case i64_i64_func_i64_i64: 723 if (Subtarget.hasMultivalue()) { 724 Rets.push_back(wasm::ValType::I64); 725 Rets.push_back(wasm::ValType::I64); 726 } else { 727 Params.push_back(PtrTy); 728 } 729 Params.push_back(wasm::ValType::I64); 730 Params.push_back(wasm::ValType::I64); 731 break; 732 case i64_i64_func_i64_i64_i64_i64: 733 if (Subtarget.hasMultivalue()) { 734 Rets.push_back(wasm::ValType::I64); 735 Rets.push_back(wasm::ValType::I64); 736 } else { 737 Params.push_back(PtrTy); 738 } 739 Params.push_back(wasm::ValType::I64); 740 Params.push_back(wasm::ValType::I64); 741 Params.push_back(wasm::ValType::I64); 742 Params.push_back(wasm::ValType::I64); 743 break; 744 case i64_i64_func_i64_i64_i64_i64_iPTR: 745 if (Subtarget.hasMultivalue()) { 746 Rets.push_back(wasm::ValType::I64); 747 Rets.push_back(wasm::ValType::I64); 748 } else { 749 Params.push_back(PtrTy); 750 } 751 Params.push_back(wasm::ValType::I64); 752 Params.push_back(wasm::ValType::I64); 753 Params.push_back(wasm::ValType::I64); 754 Params.push_back(wasm::ValType::I64); 755 Params.push_back(PtrTy); 756 break; 757 case i64_i64_i64_i64_func_i64_i64_i64_i64: 758 if (Subtarget.hasMultivalue()) { 759 Rets.push_back(wasm::ValType::I64); 760 Rets.push_back(wasm::ValType::I64); 761 Rets.push_back(wasm::ValType::I64); 762 Rets.push_back(wasm::ValType::I64); 763 } else { 764 Params.push_back(PtrTy); 765 } 766 Params.push_back(wasm::ValType::I64); 767 Params.push_back(wasm::ValType::I64); 768 Params.push_back(wasm::ValType::I64); 769 Params.push_back(wasm::ValType::I64); 770 break; 771 case i64_i64_func_i64_i64_i32: 772 if (Subtarget.hasMultivalue()) { 773 Rets.push_back(wasm::ValType::I64); 774 Rets.push_back(wasm::ValType::I64); 775 Rets.push_back(wasm::ValType::I64); 776 Rets.push_back(wasm::ValType::I64); 777 } else { 778 Params.push_back(PtrTy); 779 } 780 Params.push_back(wasm::ValType::I64); 781 Params.push_back(wasm::ValType::I64); 782 Params.push_back(wasm::ValType::I32); 783 break; 784 case iPTR_func_i32: 785 Rets.push_back(PtrTy); 786 Params.push_back(wasm::ValType::I32); 787 break; 788 case iPTR_func_iPTR_i32_iPTR: 789 Rets.push_back(PtrTy); 790 Params.push_back(PtrTy); 791 Params.push_back(wasm::ValType::I32); 792 Params.push_back(PtrTy); 793 break; 794 case iPTR_func_iPTR_iPTR_iPTR: 795 Rets.push_back(PtrTy); 796 Params.push_back(PtrTy); 797 Params.push_back(PtrTy); 798 Params.push_back(PtrTy); 799 break; 800 case f32_func_f32_f32_f32: 801 Rets.push_back(wasm::ValType::F32); 802 Params.push_back(wasm::ValType::F32); 803 Params.push_back(wasm::ValType::F32); 804 Params.push_back(wasm::ValType::F32); 805 break; 806 case f64_func_f64_f64_f64: 807 Rets.push_back(wasm::ValType::F64); 808 Params.push_back(wasm::ValType::F64); 809 Params.push_back(wasm::ValType::F64); 810 Params.push_back(wasm::ValType::F64); 811 break; 812 case func_i64_i64_iPTR_iPTR: 813 Params.push_back(wasm::ValType::I64); 814 Params.push_back(wasm::ValType::I64); 815 Params.push_back(PtrTy); 816 Params.push_back(PtrTy); 817 break; 818 case i32_func_i64_i64: 819 Rets.push_back(wasm::ValType::I32); 820 Params.push_back(wasm::ValType::I64); 821 Params.push_back(wasm::ValType::I64); 822 break; 823 case i32_func_i64_i64_i64_i64: 824 Rets.push_back(wasm::ValType::I32); 825 Params.push_back(wasm::ValType::I64); 826 Params.push_back(wasm::ValType::I64); 827 Params.push_back(wasm::ValType::I64); 828 Params.push_back(wasm::ValType::I64); 829 break; 830 case iPTR_func_f32: 831 Rets.push_back(PtrTy); 832 Params.push_back(wasm::ValType::F32); 833 break; 834 case iPTR_func_f64: 835 Rets.push_back(PtrTy); 836 Params.push_back(wasm::ValType::F64); 837 break; 838 case iPTR_func_i64_i64: 839 Rets.push_back(PtrTy); 840 Params.push_back(wasm::ValType::I64); 841 Params.push_back(wasm::ValType::I64); 842 break; 843 case i64_i64_func_i64_i64_i64_i64_i64_i64: 844 if (Subtarget.hasMultivalue()) { 845 Rets.push_back(wasm::ValType::I64); 846 Rets.push_back(wasm::ValType::I64); 847 } else { 848 Params.push_back(PtrTy); 849 } 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 Params.push_back(wasm::ValType::I64); 855 Params.push_back(wasm::ValType::I64); 856 break; 857 case i64_i64_func_i32: 858 if (Subtarget.hasMultivalue()) { 859 Rets.push_back(wasm::ValType::I64); 860 Rets.push_back(wasm::ValType::I64); 861 } else { 862 Params.push_back(PtrTy); 863 } 864 Params.push_back(wasm::ValType::I32); 865 break; 866 case i64_i64_func_i64: 867 if (Subtarget.hasMultivalue()) { 868 Rets.push_back(wasm::ValType::I64); 869 Rets.push_back(wasm::ValType::I64); 870 } else { 871 Params.push_back(PtrTy); 872 } 873 Params.push_back(wasm::ValType::I64); 874 break; 875 case unsupported: 876 llvm_unreachable("unsupported runtime library signature"); 877 } 878 } 879 880 // TODO: If the RTLIB::Libcall-taking flavor of GetSignature remains unused 881 // other than here, just roll its logic into this version. 882 void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget, 883 StringRef Name, 884 SmallVectorImpl<wasm::ValType> &Rets, 885 SmallVectorImpl<wasm::ValType> &Params) { 886 static StaticLibcallNameMap LibcallNameMap; 887 auto &Map = LibcallNameMap.Map; 888 auto Val = Map.find(Name); 889 #ifndef NDEBUG 890 if (Val == Map.end()) { 891 auto Message = 892 std::string("unexpected runtime library name: ") + std::string(Name); 893 llvm_unreachable(Message.c_str()); 894 } 895 #endif 896 return getLibcallSignature(Subtarget, Val->second, Rets, Params); 897 } 898