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::ROUNDEVEN_F32] = f32_func_f32; 222 Table[RTLIB::ROUNDEVEN_F64] = f64_func_f64; 223 Table[RTLIB::ROUNDEVEN_F128] = i64_i64_func_i64_i64; 224 Table[RTLIB::LROUND_F32] = iPTR_func_f32; 225 Table[RTLIB::LROUND_F64] = iPTR_func_f64; 226 Table[RTLIB::LROUND_F128] = iPTR_func_i64_i64; 227 Table[RTLIB::LLROUND_F32] = i64_func_f32; 228 Table[RTLIB::LLROUND_F64] = i64_func_f64; 229 Table[RTLIB::LLROUND_F128] = i64_func_i64_i64; 230 Table[RTLIB::LRINT_F32] = iPTR_func_f32; 231 Table[RTLIB::LRINT_F64] = iPTR_func_f64; 232 Table[RTLIB::LRINT_F128] = iPTR_func_i64_i64; 233 Table[RTLIB::LLRINT_F32] = i64_func_f32; 234 Table[RTLIB::LLRINT_F64] = i64_func_f64; 235 Table[RTLIB::LLRINT_F128] = i64_func_i64_i64; 236 Table[RTLIB::FLOOR_F32] = f32_func_f32; 237 Table[RTLIB::FLOOR_F64] = f64_func_f64; 238 Table[RTLIB::FLOOR_F128] = i64_i64_func_i64_i64; 239 Table[RTLIB::COPYSIGN_F32] = f32_func_f32_f32; 240 Table[RTLIB::COPYSIGN_F64] = f64_func_f64_f64; 241 Table[RTLIB::COPYSIGN_F128] = i64_i64_func_i64_i64_i64_i64; 242 Table[RTLIB::FMIN_F32] = f32_func_f32_f32; 243 Table[RTLIB::FMIN_F64] = f64_func_f64_f64; 244 Table[RTLIB::FMIN_F128] = i64_i64_func_i64_i64_i64_i64; 245 Table[RTLIB::FMAX_F32] = f32_func_f32_f32; 246 Table[RTLIB::FMAX_F64] = f64_func_f64_f64; 247 Table[RTLIB::FMAX_F128] = i64_i64_func_i64_i64_i64_i64; 248 249 // Conversion 250 // All F80 and PPCF128 routines are unsupported. 251 Table[RTLIB::FPEXT_F64_F128] = i64_i64_func_f64; 252 Table[RTLIB::FPEXT_F32_F128] = i64_i64_func_f32; 253 Table[RTLIB::FPEXT_F32_F64] = f64_func_f32; 254 Table[RTLIB::FPEXT_F16_F32] = f32_func_i16; 255 Table[RTLIB::FPROUND_F32_F16] = i16_func_f32; 256 Table[RTLIB::FPROUND_F64_F16] = i16_func_f64; 257 Table[RTLIB::FPROUND_F64_F32] = f32_func_f64; 258 Table[RTLIB::FPROUND_F128_F16] = i16_func_i64_i64; 259 Table[RTLIB::FPROUND_F128_F32] = f32_func_i64_i64; 260 Table[RTLIB::FPROUND_F128_F64] = f64_func_i64_i64; 261 Table[RTLIB::FPTOSINT_F32_I32] = i32_func_f32; 262 Table[RTLIB::FPTOSINT_F32_I64] = i64_func_f32; 263 Table[RTLIB::FPTOSINT_F32_I128] = i64_i64_func_f32; 264 Table[RTLIB::FPTOSINT_F64_I32] = i32_func_f64; 265 Table[RTLIB::FPTOSINT_F64_I64] = i64_func_f64; 266 Table[RTLIB::FPTOSINT_F64_I128] = i64_i64_func_f64; 267 Table[RTLIB::FPTOSINT_F128_I32] = i32_func_i64_i64; 268 Table[RTLIB::FPTOSINT_F128_I64] = i64_func_i64_i64; 269 Table[RTLIB::FPTOSINT_F128_I128] = i64_i64_func_i64_i64; 270 Table[RTLIB::FPTOUINT_F32_I32] = i32_func_f32; 271 Table[RTLIB::FPTOUINT_F32_I64] = i64_func_f32; 272 Table[RTLIB::FPTOUINT_F32_I128] = i64_i64_func_f32; 273 Table[RTLIB::FPTOUINT_F64_I32] = i32_func_f64; 274 Table[RTLIB::FPTOUINT_F64_I64] = i64_func_f64; 275 Table[RTLIB::FPTOUINT_F64_I128] = i64_i64_func_f64; 276 Table[RTLIB::FPTOUINT_F128_I32] = i32_func_i64_i64; 277 Table[RTLIB::FPTOUINT_F128_I64] = i64_func_i64_i64; 278 Table[RTLIB::FPTOUINT_F128_I128] = i64_i64_func_i64_i64; 279 Table[RTLIB::SINTTOFP_I32_F32] = f32_func_i32; 280 Table[RTLIB::SINTTOFP_I32_F64] = f64_func_i32; 281 Table[RTLIB::SINTTOFP_I32_F128] = i64_i64_func_i32; 282 Table[RTLIB::SINTTOFP_I64_F32] = f32_func_i64; 283 Table[RTLIB::SINTTOFP_I64_F64] = f64_func_i64; 284 Table[RTLIB::SINTTOFP_I64_F128] = i64_i64_func_i64; 285 Table[RTLIB::SINTTOFP_I128_F32] = f32_func_i64_i64; 286 Table[RTLIB::SINTTOFP_I128_F64] = f64_func_i64_i64; 287 Table[RTLIB::SINTTOFP_I128_F128] = i64_i64_func_i64_i64; 288 Table[RTLIB::UINTTOFP_I32_F32] = f32_func_i32; 289 Table[RTLIB::UINTTOFP_I32_F64] = f64_func_i64; 290 Table[RTLIB::UINTTOFP_I32_F128] = i64_i64_func_i32; 291 Table[RTLIB::UINTTOFP_I64_F32] = f32_func_i64; 292 Table[RTLIB::UINTTOFP_I64_F64] = f64_func_i64; 293 Table[RTLIB::UINTTOFP_I64_F128] = i64_i64_func_i64; 294 Table[RTLIB::UINTTOFP_I128_F32] = f32_func_i64_i64; 295 Table[RTLIB::UINTTOFP_I128_F64] = f64_func_i64_i64; 296 Table[RTLIB::UINTTOFP_I128_F128] = i64_i64_func_i64_i64; 297 298 // Comparison 299 // ALl F80 and PPCF128 routines are unsupported. 300 Table[RTLIB::OEQ_F32] = i32_func_f32_f32; 301 Table[RTLIB::OEQ_F64] = i32_func_f64_f64; 302 Table[RTLIB::OEQ_F128] = i32_func_i64_i64_i64_i64; 303 Table[RTLIB::UNE_F32] = i32_func_f32_f32; 304 Table[RTLIB::UNE_F64] = i32_func_f64_f64; 305 Table[RTLIB::UNE_F128] = i32_func_i64_i64_i64_i64; 306 Table[RTLIB::OGE_F32] = i32_func_f32_f32; 307 Table[RTLIB::OGE_F64] = i32_func_f64_f64; 308 Table[RTLIB::OGE_F128] = i32_func_i64_i64_i64_i64; 309 Table[RTLIB::OLT_F32] = i32_func_f32_f32; 310 Table[RTLIB::OLT_F64] = i32_func_f64_f64; 311 Table[RTLIB::OLT_F128] = i32_func_i64_i64_i64_i64; 312 Table[RTLIB::OLE_F32] = i32_func_f32_f32; 313 Table[RTLIB::OLE_F64] = i32_func_f64_f64; 314 Table[RTLIB::OLE_F128] = i32_func_i64_i64_i64_i64; 315 Table[RTLIB::OGT_F32] = i32_func_f32_f32; 316 Table[RTLIB::OGT_F64] = i32_func_f64_f64; 317 Table[RTLIB::OGT_F128] = i32_func_i64_i64_i64_i64; 318 Table[RTLIB::UO_F32] = i32_func_f32_f32; 319 Table[RTLIB::UO_F64] = i32_func_f64_f64; 320 Table[RTLIB::UO_F128] = i32_func_i64_i64_i64_i64; 321 322 // Memory 323 Table[RTLIB::MEMCPY] = iPTR_func_iPTR_iPTR_iPTR; 324 Table[RTLIB::MEMSET] = iPTR_func_iPTR_i32_iPTR; 325 Table[RTLIB::MEMMOVE] = iPTR_func_iPTR_iPTR_iPTR; 326 327 // __stack_chk_fail 328 Table[RTLIB::STACKPROTECTOR_CHECK_FAIL] = func; 329 330 // Return address handling 331 Table[RTLIB::RETURN_ADDRESS] = iPTR_func_i32; 332 333 // Element-wise Atomic memory 334 // TODO: Fix these when we implement atomic support 335 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_1] = unsupported; 336 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_2] = unsupported; 337 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_4] = unsupported; 338 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_8] = unsupported; 339 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_16] = unsupported; 340 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_1] = unsupported; 341 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_2] = unsupported; 342 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_4] = unsupported; 343 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_8] = unsupported; 344 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_16] = unsupported; 345 346 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_1] = unsupported; 347 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_2] = unsupported; 348 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_4] = unsupported; 349 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_8] = unsupported; 350 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_16] = unsupported; 351 352 // Atomic '__sync_*' libcalls. 353 // TODO: Fix these when we implement atomic support 354 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_1] = unsupported; 355 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_2] = unsupported; 356 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_4] = unsupported; 357 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_8] = unsupported; 358 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_16] = unsupported; 359 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_1] = unsupported; 360 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_2] = unsupported; 361 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_4] = unsupported; 362 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_8] = unsupported; 363 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_16] = unsupported; 364 Table[RTLIB::SYNC_FETCH_AND_ADD_1] = unsupported; 365 Table[RTLIB::SYNC_FETCH_AND_ADD_2] = unsupported; 366 Table[RTLIB::SYNC_FETCH_AND_ADD_4] = unsupported; 367 Table[RTLIB::SYNC_FETCH_AND_ADD_8] = unsupported; 368 Table[RTLIB::SYNC_FETCH_AND_ADD_16] = unsupported; 369 Table[RTLIB::SYNC_FETCH_AND_SUB_1] = unsupported; 370 Table[RTLIB::SYNC_FETCH_AND_SUB_2] = unsupported; 371 Table[RTLIB::SYNC_FETCH_AND_SUB_4] = unsupported; 372 Table[RTLIB::SYNC_FETCH_AND_SUB_8] = unsupported; 373 Table[RTLIB::SYNC_FETCH_AND_SUB_16] = unsupported; 374 Table[RTLIB::SYNC_FETCH_AND_AND_1] = unsupported; 375 Table[RTLIB::SYNC_FETCH_AND_AND_2] = unsupported; 376 Table[RTLIB::SYNC_FETCH_AND_AND_4] = unsupported; 377 Table[RTLIB::SYNC_FETCH_AND_AND_8] = unsupported; 378 Table[RTLIB::SYNC_FETCH_AND_AND_16] = unsupported; 379 Table[RTLIB::SYNC_FETCH_AND_OR_1] = unsupported; 380 Table[RTLIB::SYNC_FETCH_AND_OR_2] = unsupported; 381 Table[RTLIB::SYNC_FETCH_AND_OR_4] = unsupported; 382 Table[RTLIB::SYNC_FETCH_AND_OR_8] = unsupported; 383 Table[RTLIB::SYNC_FETCH_AND_OR_16] = unsupported; 384 Table[RTLIB::SYNC_FETCH_AND_XOR_1] = unsupported; 385 Table[RTLIB::SYNC_FETCH_AND_XOR_2] = unsupported; 386 Table[RTLIB::SYNC_FETCH_AND_XOR_4] = unsupported; 387 Table[RTLIB::SYNC_FETCH_AND_XOR_8] = unsupported; 388 Table[RTLIB::SYNC_FETCH_AND_XOR_16] = unsupported; 389 Table[RTLIB::SYNC_FETCH_AND_NAND_1] = unsupported; 390 Table[RTLIB::SYNC_FETCH_AND_NAND_2] = unsupported; 391 Table[RTLIB::SYNC_FETCH_AND_NAND_4] = unsupported; 392 Table[RTLIB::SYNC_FETCH_AND_NAND_8] = unsupported; 393 Table[RTLIB::SYNC_FETCH_AND_NAND_16] = unsupported; 394 Table[RTLIB::SYNC_FETCH_AND_MAX_1] = unsupported; 395 Table[RTLIB::SYNC_FETCH_AND_MAX_2] = unsupported; 396 Table[RTLIB::SYNC_FETCH_AND_MAX_4] = unsupported; 397 Table[RTLIB::SYNC_FETCH_AND_MAX_8] = unsupported; 398 Table[RTLIB::SYNC_FETCH_AND_MAX_16] = unsupported; 399 Table[RTLIB::SYNC_FETCH_AND_UMAX_1] = unsupported; 400 Table[RTLIB::SYNC_FETCH_AND_UMAX_2] = unsupported; 401 Table[RTLIB::SYNC_FETCH_AND_UMAX_4] = unsupported; 402 Table[RTLIB::SYNC_FETCH_AND_UMAX_8] = unsupported; 403 Table[RTLIB::SYNC_FETCH_AND_UMAX_16] = unsupported; 404 Table[RTLIB::SYNC_FETCH_AND_MIN_1] = unsupported; 405 Table[RTLIB::SYNC_FETCH_AND_MIN_2] = unsupported; 406 Table[RTLIB::SYNC_FETCH_AND_MIN_4] = unsupported; 407 Table[RTLIB::SYNC_FETCH_AND_MIN_8] = unsupported; 408 Table[RTLIB::SYNC_FETCH_AND_MIN_16] = unsupported; 409 Table[RTLIB::SYNC_FETCH_AND_UMIN_1] = unsupported; 410 Table[RTLIB::SYNC_FETCH_AND_UMIN_2] = unsupported; 411 Table[RTLIB::SYNC_FETCH_AND_UMIN_4] = unsupported; 412 Table[RTLIB::SYNC_FETCH_AND_UMIN_8] = unsupported; 413 Table[RTLIB::SYNC_FETCH_AND_UMIN_16] = unsupported; 414 415 // Atomic '__atomic_*' libcalls. 416 // TODO: Fix these when we implement atomic support 417 Table[RTLIB::ATOMIC_LOAD] = unsupported; 418 Table[RTLIB::ATOMIC_LOAD_1] = unsupported; 419 Table[RTLIB::ATOMIC_LOAD_2] = unsupported; 420 Table[RTLIB::ATOMIC_LOAD_4] = unsupported; 421 Table[RTLIB::ATOMIC_LOAD_8] = unsupported; 422 Table[RTLIB::ATOMIC_LOAD_16] = unsupported; 423 424 Table[RTLIB::ATOMIC_STORE] = unsupported; 425 Table[RTLIB::ATOMIC_STORE_1] = unsupported; 426 Table[RTLIB::ATOMIC_STORE_2] = unsupported; 427 Table[RTLIB::ATOMIC_STORE_4] = unsupported; 428 Table[RTLIB::ATOMIC_STORE_8] = unsupported; 429 Table[RTLIB::ATOMIC_STORE_16] = unsupported; 430 431 Table[RTLIB::ATOMIC_EXCHANGE] = unsupported; 432 Table[RTLIB::ATOMIC_EXCHANGE_1] = unsupported; 433 Table[RTLIB::ATOMIC_EXCHANGE_2] = unsupported; 434 Table[RTLIB::ATOMIC_EXCHANGE_4] = unsupported; 435 Table[RTLIB::ATOMIC_EXCHANGE_8] = unsupported; 436 Table[RTLIB::ATOMIC_EXCHANGE_16] = unsupported; 437 438 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE] = unsupported; 439 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_1] = unsupported; 440 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_2] = unsupported; 441 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_4] = unsupported; 442 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_8] = unsupported; 443 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_16] = unsupported; 444 445 Table[RTLIB::ATOMIC_FETCH_ADD_1] = unsupported; 446 Table[RTLIB::ATOMIC_FETCH_ADD_2] = unsupported; 447 Table[RTLIB::ATOMIC_FETCH_ADD_4] = unsupported; 448 Table[RTLIB::ATOMIC_FETCH_ADD_8] = unsupported; 449 Table[RTLIB::ATOMIC_FETCH_ADD_16] = unsupported; 450 451 Table[RTLIB::ATOMIC_FETCH_SUB_1] = unsupported; 452 Table[RTLIB::ATOMIC_FETCH_SUB_2] = unsupported; 453 Table[RTLIB::ATOMIC_FETCH_SUB_4] = unsupported; 454 Table[RTLIB::ATOMIC_FETCH_SUB_8] = unsupported; 455 Table[RTLIB::ATOMIC_FETCH_SUB_16] = unsupported; 456 457 Table[RTLIB::ATOMIC_FETCH_AND_1] = unsupported; 458 Table[RTLIB::ATOMIC_FETCH_AND_2] = unsupported; 459 Table[RTLIB::ATOMIC_FETCH_AND_4] = unsupported; 460 Table[RTLIB::ATOMIC_FETCH_AND_8] = unsupported; 461 Table[RTLIB::ATOMIC_FETCH_AND_16] = unsupported; 462 463 Table[RTLIB::ATOMIC_FETCH_OR_1] = unsupported; 464 Table[RTLIB::ATOMIC_FETCH_OR_2] = unsupported; 465 Table[RTLIB::ATOMIC_FETCH_OR_4] = unsupported; 466 Table[RTLIB::ATOMIC_FETCH_OR_8] = unsupported; 467 Table[RTLIB::ATOMIC_FETCH_OR_16] = unsupported; 468 469 Table[RTLIB::ATOMIC_FETCH_XOR_1] = unsupported; 470 Table[RTLIB::ATOMIC_FETCH_XOR_2] = unsupported; 471 Table[RTLIB::ATOMIC_FETCH_XOR_4] = unsupported; 472 Table[RTLIB::ATOMIC_FETCH_XOR_8] = unsupported; 473 Table[RTLIB::ATOMIC_FETCH_XOR_16] = unsupported; 474 475 Table[RTLIB::ATOMIC_FETCH_NAND_1] = unsupported; 476 Table[RTLIB::ATOMIC_FETCH_NAND_2] = unsupported; 477 Table[RTLIB::ATOMIC_FETCH_NAND_4] = unsupported; 478 Table[RTLIB::ATOMIC_FETCH_NAND_8] = unsupported; 479 Table[RTLIB::ATOMIC_FETCH_NAND_16] = unsupported; 480 } 481 }; 482 483 RuntimeLibcallSignatureTable &getRuntimeLibcallSignatures() { 484 static RuntimeLibcallSignatureTable RuntimeLibcallSignatures; 485 return RuntimeLibcallSignatures; 486 } 487 488 // Maps libcall names to their RTLIB::Libcall number. Builds the map in a 489 // constructor for use with a static variable 490 struct StaticLibcallNameMap { 491 StringMap<RTLIB::Libcall> Map; 492 StaticLibcallNameMap() { 493 static const std::pair<const char *, RTLIB::Libcall> NameLibcalls[] = { 494 #define HANDLE_LIBCALL(code, name) {(const char *)name, RTLIB::code}, 495 #include "llvm/IR/RuntimeLibcalls.def" 496 #undef HANDLE_LIBCALL 497 }; 498 for (const auto &NameLibcall : NameLibcalls) { 499 if (NameLibcall.first != nullptr && 500 getRuntimeLibcallSignatures().Table[NameLibcall.second] != 501 unsupported) { 502 assert(!Map.contains(NameLibcall.first) && 503 "duplicate libcall names in name map"); 504 Map[NameLibcall.first] = NameLibcall.second; 505 } 506 } 507 // Override the __gnu_f2h_ieee/__gnu_h2f_ieee names so that the f32 name is 508 // consistent with the f64 and f128 names. 509 Map["__extendhfsf2"] = RTLIB::FPEXT_F16_F32; 510 Map["__truncsfhf2"] = RTLIB::FPROUND_F32_F16; 511 512 Map["emscripten_return_address"] = RTLIB::RETURN_ADDRESS; 513 } 514 }; 515 516 } // end anonymous namespace 517 518 void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget, 519 RTLIB::Libcall LC, 520 SmallVectorImpl<wasm::ValType> &Rets, 521 SmallVectorImpl<wasm::ValType> &Params) { 522 assert(Rets.empty()); 523 assert(Params.empty()); 524 525 wasm::ValType PtrTy = 526 Subtarget.hasAddr64() ? wasm::ValType::I64 : wasm::ValType::I32; 527 528 auto &Table = getRuntimeLibcallSignatures().Table; 529 switch (Table[LC]) { 530 case func: 531 break; 532 case f32_func_f32: 533 Rets.push_back(wasm::ValType::F32); 534 Params.push_back(wasm::ValType::F32); 535 break; 536 case f32_func_f64: 537 Rets.push_back(wasm::ValType::F32); 538 Params.push_back(wasm::ValType::F64); 539 break; 540 case f32_func_i32: 541 Rets.push_back(wasm::ValType::F32); 542 Params.push_back(wasm::ValType::I32); 543 break; 544 case f32_func_i64: 545 Rets.push_back(wasm::ValType::F32); 546 Params.push_back(wasm::ValType::I64); 547 break; 548 case f32_func_i16: 549 Rets.push_back(wasm::ValType::F32); 550 Params.push_back(wasm::ValType::I32); 551 break; 552 case f64_func_f32: 553 Rets.push_back(wasm::ValType::F64); 554 Params.push_back(wasm::ValType::F32); 555 break; 556 case f64_func_f64: 557 Rets.push_back(wasm::ValType::F64); 558 Params.push_back(wasm::ValType::F64); 559 break; 560 case f64_func_i32: 561 Rets.push_back(wasm::ValType::F64); 562 Params.push_back(wasm::ValType::I32); 563 break; 564 case f64_func_i64: 565 Rets.push_back(wasm::ValType::F64); 566 Params.push_back(wasm::ValType::I64); 567 break; 568 case i32_func_f32: 569 Rets.push_back(wasm::ValType::I32); 570 Params.push_back(wasm::ValType::F32); 571 break; 572 case i32_func_f64: 573 Rets.push_back(wasm::ValType::I32); 574 Params.push_back(wasm::ValType::F64); 575 break; 576 case i32_func_i32: 577 Rets.push_back(wasm::ValType::I32); 578 Params.push_back(wasm::ValType::I32); 579 break; 580 case i64_func_f32: 581 Rets.push_back(wasm::ValType::I64); 582 Params.push_back(wasm::ValType::F32); 583 break; 584 case i64_func_f64: 585 Rets.push_back(wasm::ValType::I64); 586 Params.push_back(wasm::ValType::F64); 587 break; 588 case i64_func_i64: 589 Rets.push_back(wasm::ValType::I64); 590 Params.push_back(wasm::ValType::I64); 591 break; 592 case f32_func_f32_f32: 593 Rets.push_back(wasm::ValType::F32); 594 Params.push_back(wasm::ValType::F32); 595 Params.push_back(wasm::ValType::F32); 596 break; 597 case f32_func_f32_i32: 598 Rets.push_back(wasm::ValType::F32); 599 Params.push_back(wasm::ValType::F32); 600 Params.push_back(wasm::ValType::I32); 601 break; 602 case f32_func_i64_i64: 603 Rets.push_back(wasm::ValType::F32); 604 Params.push_back(wasm::ValType::I64); 605 Params.push_back(wasm::ValType::I64); 606 break; 607 case f64_func_f64_f64: 608 Rets.push_back(wasm::ValType::F64); 609 Params.push_back(wasm::ValType::F64); 610 Params.push_back(wasm::ValType::F64); 611 break; 612 case f64_func_f64_i32: 613 Rets.push_back(wasm::ValType::F64); 614 Params.push_back(wasm::ValType::F64); 615 Params.push_back(wasm::ValType::I32); 616 break; 617 case f64_func_i64_i64: 618 Rets.push_back(wasm::ValType::F64); 619 Params.push_back(wasm::ValType::I64); 620 Params.push_back(wasm::ValType::I64); 621 break; 622 case i16_func_f32: 623 Rets.push_back(wasm::ValType::I32); 624 Params.push_back(wasm::ValType::F32); 625 break; 626 case i16_func_f64: 627 Rets.push_back(wasm::ValType::I32); 628 Params.push_back(wasm::ValType::F64); 629 break; 630 case i16_func_i64_i64: 631 Rets.push_back(wasm::ValType::I32); 632 Params.push_back(wasm::ValType::I64); 633 Params.push_back(wasm::ValType::I64); 634 break; 635 case i8_func_i8_i8: 636 Rets.push_back(wasm::ValType::I32); 637 Params.push_back(wasm::ValType::I32); 638 Params.push_back(wasm::ValType::I32); 639 break; 640 case func_f32_iPTR_iPTR: 641 Params.push_back(wasm::ValType::F32); 642 Params.push_back(PtrTy); 643 Params.push_back(PtrTy); 644 break; 645 case func_f64_iPTR_iPTR: 646 Params.push_back(wasm::ValType::F64); 647 Params.push_back(PtrTy); 648 Params.push_back(PtrTy); 649 break; 650 case i16_func_i16_i16: 651 Rets.push_back(wasm::ValType::I32); 652 Params.push_back(wasm::ValType::I32); 653 Params.push_back(wasm::ValType::I32); 654 break; 655 case i32_func_f32_f32: 656 Rets.push_back(wasm::ValType::I32); 657 Params.push_back(wasm::ValType::F32); 658 Params.push_back(wasm::ValType::F32); 659 break; 660 case i32_func_f64_f64: 661 Rets.push_back(wasm::ValType::I32); 662 Params.push_back(wasm::ValType::F64); 663 Params.push_back(wasm::ValType::F64); 664 break; 665 case i32_func_i32_i32: 666 Rets.push_back(wasm::ValType::I32); 667 Params.push_back(wasm::ValType::I32); 668 Params.push_back(wasm::ValType::I32); 669 break; 670 case i32_func_i32_i32_iPTR: 671 Rets.push_back(wasm::ValType::I32); 672 Params.push_back(wasm::ValType::I32); 673 Params.push_back(wasm::ValType::I32); 674 Params.push_back(PtrTy); 675 break; 676 case i64_func_i64_i64: 677 Rets.push_back(wasm::ValType::I64); 678 Params.push_back(wasm::ValType::I64); 679 Params.push_back(wasm::ValType::I64); 680 break; 681 case i64_func_i64_i64_iPTR: 682 Rets.push_back(wasm::ValType::I64); 683 Params.push_back(wasm::ValType::I64); 684 Params.push_back(wasm::ValType::I64); 685 Params.push_back(PtrTy); 686 break; 687 case i64_i64_func_f32: 688 if (Subtarget.hasMultivalue()) { 689 Rets.push_back(wasm::ValType::I64); 690 Rets.push_back(wasm::ValType::I64); 691 } else { 692 Params.push_back(PtrTy); 693 } 694 Params.push_back(wasm::ValType::F32); 695 break; 696 case i64_i64_func_f64: 697 if (Subtarget.hasMultivalue()) { 698 Rets.push_back(wasm::ValType::I64); 699 Rets.push_back(wasm::ValType::I64); 700 } else { 701 Params.push_back(PtrTy); 702 } 703 Params.push_back(wasm::ValType::F64); 704 break; 705 case i16_i16_func_i16_i16: 706 if (Subtarget.hasMultivalue()) { 707 Rets.push_back(wasm::ValType::I32); 708 Rets.push_back(wasm::ValType::I32); 709 } else { 710 Params.push_back(PtrTy); 711 } 712 Params.push_back(wasm::ValType::I32); 713 Params.push_back(wasm::ValType::I32); 714 break; 715 case i32_i32_func_i32_i32: 716 if (Subtarget.hasMultivalue()) { 717 Rets.push_back(wasm::ValType::I32); 718 Rets.push_back(wasm::ValType::I32); 719 } else { 720 Params.push_back(PtrTy); 721 } 722 Params.push_back(wasm::ValType::I32); 723 Params.push_back(wasm::ValType::I32); 724 break; 725 case i64_i64_func_i64_i64: 726 if (Subtarget.hasMultivalue()) { 727 Rets.push_back(wasm::ValType::I64); 728 Rets.push_back(wasm::ValType::I64); 729 } else { 730 Params.push_back(PtrTy); 731 } 732 Params.push_back(wasm::ValType::I64); 733 Params.push_back(wasm::ValType::I64); 734 break; 735 case i64_i64_func_i64_i64_i64_i64: 736 if (Subtarget.hasMultivalue()) { 737 Rets.push_back(wasm::ValType::I64); 738 Rets.push_back(wasm::ValType::I64); 739 } else { 740 Params.push_back(PtrTy); 741 } 742 Params.push_back(wasm::ValType::I64); 743 Params.push_back(wasm::ValType::I64); 744 Params.push_back(wasm::ValType::I64); 745 Params.push_back(wasm::ValType::I64); 746 break; 747 case i64_i64_func_i64_i64_i64_i64_iPTR: 748 if (Subtarget.hasMultivalue()) { 749 Rets.push_back(wasm::ValType::I64); 750 Rets.push_back(wasm::ValType::I64); 751 } else { 752 Params.push_back(PtrTy); 753 } 754 Params.push_back(wasm::ValType::I64); 755 Params.push_back(wasm::ValType::I64); 756 Params.push_back(wasm::ValType::I64); 757 Params.push_back(wasm::ValType::I64); 758 Params.push_back(PtrTy); 759 break; 760 case i64_i64_i64_i64_func_i64_i64_i64_i64: 761 if (Subtarget.hasMultivalue()) { 762 Rets.push_back(wasm::ValType::I64); 763 Rets.push_back(wasm::ValType::I64); 764 Rets.push_back(wasm::ValType::I64); 765 Rets.push_back(wasm::ValType::I64); 766 } else { 767 Params.push_back(PtrTy); 768 } 769 Params.push_back(wasm::ValType::I64); 770 Params.push_back(wasm::ValType::I64); 771 Params.push_back(wasm::ValType::I64); 772 Params.push_back(wasm::ValType::I64); 773 break; 774 case i64_i64_func_i64_i64_i32: 775 if (Subtarget.hasMultivalue()) { 776 Rets.push_back(wasm::ValType::I64); 777 Rets.push_back(wasm::ValType::I64); 778 } else { 779 Params.push_back(PtrTy); 780 } 781 Params.push_back(wasm::ValType::I64); 782 Params.push_back(wasm::ValType::I64); 783 Params.push_back(wasm::ValType::I32); 784 break; 785 case iPTR_func_i32: 786 Rets.push_back(PtrTy); 787 Params.push_back(wasm::ValType::I32); 788 break; 789 case iPTR_func_iPTR_i32_iPTR: 790 Rets.push_back(PtrTy); 791 Params.push_back(PtrTy); 792 Params.push_back(wasm::ValType::I32); 793 Params.push_back(PtrTy); 794 break; 795 case iPTR_func_iPTR_iPTR_iPTR: 796 Rets.push_back(PtrTy); 797 Params.push_back(PtrTy); 798 Params.push_back(PtrTy); 799 Params.push_back(PtrTy); 800 break; 801 case f32_func_f32_f32_f32: 802 Rets.push_back(wasm::ValType::F32); 803 Params.push_back(wasm::ValType::F32); 804 Params.push_back(wasm::ValType::F32); 805 Params.push_back(wasm::ValType::F32); 806 break; 807 case f64_func_f64_f64_f64: 808 Rets.push_back(wasm::ValType::F64); 809 Params.push_back(wasm::ValType::F64); 810 Params.push_back(wasm::ValType::F64); 811 Params.push_back(wasm::ValType::F64); 812 break; 813 case func_i64_i64_iPTR_iPTR: 814 Params.push_back(wasm::ValType::I64); 815 Params.push_back(wasm::ValType::I64); 816 Params.push_back(PtrTy); 817 Params.push_back(PtrTy); 818 break; 819 case i32_func_i64_i64: 820 Rets.push_back(wasm::ValType::I32); 821 Params.push_back(wasm::ValType::I64); 822 Params.push_back(wasm::ValType::I64); 823 break; 824 case i32_func_i64_i64_i64_i64: 825 Rets.push_back(wasm::ValType::I32); 826 Params.push_back(wasm::ValType::I64); 827 Params.push_back(wasm::ValType::I64); 828 Params.push_back(wasm::ValType::I64); 829 Params.push_back(wasm::ValType::I64); 830 break; 831 case iPTR_func_f32: 832 Rets.push_back(PtrTy); 833 Params.push_back(wasm::ValType::F32); 834 break; 835 case iPTR_func_f64: 836 Rets.push_back(PtrTy); 837 Params.push_back(wasm::ValType::F64); 838 break; 839 case iPTR_func_i64_i64: 840 Rets.push_back(PtrTy); 841 Params.push_back(wasm::ValType::I64); 842 Params.push_back(wasm::ValType::I64); 843 break; 844 case i64_i64_func_i64_i64_i64_i64_i64_i64: 845 if (Subtarget.hasMultivalue()) { 846 Rets.push_back(wasm::ValType::I64); 847 Rets.push_back(wasm::ValType::I64); 848 } else { 849 Params.push_back(PtrTy); 850 } 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 Params.push_back(wasm::ValType::I64); 857 break; 858 case i64_i64_func_i32: 859 if (Subtarget.hasMultivalue()) { 860 Rets.push_back(wasm::ValType::I64); 861 Rets.push_back(wasm::ValType::I64); 862 } else { 863 Params.push_back(PtrTy); 864 } 865 Params.push_back(wasm::ValType::I32); 866 break; 867 case i64_i64_func_i64: 868 if (Subtarget.hasMultivalue()) { 869 Rets.push_back(wasm::ValType::I64); 870 Rets.push_back(wasm::ValType::I64); 871 } else { 872 Params.push_back(PtrTy); 873 } 874 Params.push_back(wasm::ValType::I64); 875 break; 876 case unsupported: 877 llvm_unreachable("unsupported runtime library signature"); 878 } 879 } 880 881 // TODO: If the RTLIB::Libcall-taking flavor of GetSignature remains unused 882 // other than here, just roll its logic into this version. 883 void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget, 884 StringRef Name, 885 SmallVectorImpl<wasm::ValType> &Rets, 886 SmallVectorImpl<wasm::ValType> &Params) { 887 static StaticLibcallNameMap LibcallNameMap; 888 auto &Map = LibcallNameMap.Map; 889 auto Val = Map.find(Name); 890 #ifndef NDEBUG 891 if (Val == Map.end()) { 892 auto Message = 893 std::string("unexpected runtime library name: ") + std::string(Name); 894 llvm_unreachable(Message.c_str()); 895 } 896 #endif 897 return getLibcallSignature(Subtarget, Val->second, Rets, Params); 898 } 899