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 "WebAssemblyUtilities.h" 24 #include "llvm/CodeGen/RuntimeLibcalls.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_i32, 67 i64_i64_func_i64, 68 i64_i64_func_f32, 69 i64_i64_func_f64, 70 i16_i16_func_i16_i16, 71 i32_i32_func_i32_i32, 72 i64_i64_func_i64_i64, 73 i64_i64_func_i64_i64_i64_i64, 74 i64_i64_func_i64_i64_i64_i64_iPTR, 75 i64_i64_i64_i64_func_i64_i64_i64_i64, 76 i64_i64_func_i64_i64_i32, 77 i64_i64_func_i64_i64_i64_i64_i64_i64, 78 iPTR_func_i32, 79 iPTR_func_iPTR_i32_iPTR, 80 iPTR_func_iPTR_iPTR_iPTR, 81 f32_func_f32_f32_f32, 82 f64_func_f64_f64_f64, 83 func_i64_i64_iPTR_iPTR, 84 i32_func_i64_i64, 85 i32_func_i64_i64_i64_i64, 86 iPTR_func_f32, 87 iPTR_func_f64, 88 iPTR_func_i64_i64, 89 unsupported 90 }; 91 92 struct RuntimeLibcallSignatureTable { 93 std::vector<RuntimeLibcallSignature> Table; 94 95 // Any newly-added libcalls will be unsupported by default. 96 RuntimeLibcallSignatureTable() : Table(RTLIB::UNKNOWN_LIBCALL, unsupported) { 97 // Integer 98 Table[RTLIB::SHL_I16] = i16_func_i16_i16; 99 Table[RTLIB::SHL_I32] = i32_func_i32_i32; 100 Table[RTLIB::SHL_I64] = i64_func_i64_i64; 101 Table[RTLIB::SHL_I128] = i64_i64_func_i64_i64_i32; 102 Table[RTLIB::SRL_I16] = i16_func_i16_i16; 103 Table[RTLIB::SRL_I32] = i32_func_i32_i32; 104 Table[RTLIB::SRL_I64] = i64_func_i64_i64; 105 Table[RTLIB::SRL_I128] = i64_i64_func_i64_i64_i32; 106 Table[RTLIB::SRA_I16] = i16_func_i16_i16; 107 Table[RTLIB::SRA_I32] = i32_func_i32_i32; 108 Table[RTLIB::SRA_I64] = i64_func_i64_i64; 109 Table[RTLIB::SRA_I128] = i64_i64_func_i64_i64_i32; 110 Table[RTLIB::MUL_I8] = i8_func_i8_i8; 111 Table[RTLIB::MUL_I16] = i16_func_i16_i16; 112 Table[RTLIB::MUL_I32] = i32_func_i32_i32; 113 Table[RTLIB::MUL_I64] = i64_func_i64_i64; 114 Table[RTLIB::MUL_I128] = i64_i64_func_i64_i64_i64_i64; 115 Table[RTLIB::MULO_I32] = i32_func_i32_i32_iPTR; 116 Table[RTLIB::MULO_I64] = i64_func_i64_i64_iPTR; 117 Table[RTLIB::MULO_I128] = i64_i64_func_i64_i64_i64_i64_iPTR; 118 Table[RTLIB::SDIV_I8] = i8_func_i8_i8; 119 Table[RTLIB::SDIV_I16] = i16_func_i16_i16; 120 Table[RTLIB::SDIV_I32] = i32_func_i32_i32; 121 Table[RTLIB::SDIV_I64] = i64_func_i64_i64; 122 Table[RTLIB::SDIV_I128] = i64_i64_func_i64_i64_i64_i64; 123 Table[RTLIB::UDIV_I8] = i8_func_i8_i8; 124 Table[RTLIB::UDIV_I16] = i16_func_i16_i16; 125 Table[RTLIB::UDIV_I32] = i32_func_i32_i32; 126 Table[RTLIB::UDIV_I64] = i64_func_i64_i64; 127 Table[RTLIB::UDIV_I128] = i64_i64_func_i64_i64_i64_i64; 128 Table[RTLIB::SREM_I8] = i8_func_i8_i8; 129 Table[RTLIB::SREM_I16] = i16_func_i16_i16; 130 Table[RTLIB::SREM_I32] = i32_func_i32_i32; 131 Table[RTLIB::SREM_I64] = i64_func_i64_i64; 132 Table[RTLIB::SREM_I128] = i64_i64_func_i64_i64_i64_i64; 133 Table[RTLIB::UREM_I8] = i8_func_i8_i8; 134 Table[RTLIB::UREM_I16] = i16_func_i16_i16; 135 Table[RTLIB::UREM_I32] = i32_func_i32_i32; 136 Table[RTLIB::UREM_I64] = i64_func_i64_i64; 137 Table[RTLIB::UREM_I128] = i64_i64_func_i64_i64_i64_i64; 138 Table[RTLIB::SDIVREM_I8] = i8_func_i8_i8; 139 Table[RTLIB::SDIVREM_I16] = i16_i16_func_i16_i16; 140 Table[RTLIB::SDIVREM_I32] = i32_i32_func_i32_i32; 141 Table[RTLIB::SDIVREM_I64] = i64_func_i64_i64; 142 Table[RTLIB::SDIVREM_I128] = i64_i64_i64_i64_func_i64_i64_i64_i64; 143 Table[RTLIB::UDIVREM_I8] = i8_func_i8_i8; 144 Table[RTLIB::UDIVREM_I16] = i16_i16_func_i16_i16; 145 Table[RTLIB::UDIVREM_I32] = i32_i32_func_i32_i32; 146 Table[RTLIB::UDIVREM_I64] = i64_i64_func_i64_i64; 147 Table[RTLIB::UDIVREM_I128] = i64_i64_i64_i64_func_i64_i64_i64_i64; 148 Table[RTLIB::NEG_I32] = i32_func_i32; 149 Table[RTLIB::NEG_I64] = i64_func_i64; 150 151 // Floating-point. 152 // All F80 and PPCF128 routines are unsupported. 153 Table[RTLIB::ADD_F32] = f32_func_f32_f32; 154 Table[RTLIB::ADD_F64] = f64_func_f64_f64; 155 Table[RTLIB::ADD_F128] = i64_i64_func_i64_i64_i64_i64; 156 Table[RTLIB::SUB_F32] = f32_func_f32_f32; 157 Table[RTLIB::SUB_F64] = f64_func_f64_f64; 158 Table[RTLIB::SUB_F128] = i64_i64_func_i64_i64_i64_i64; 159 Table[RTLIB::MUL_F32] = f32_func_f32_f32; 160 Table[RTLIB::MUL_F64] = f64_func_f64_f64; 161 Table[RTLIB::MUL_F128] = i64_i64_func_i64_i64_i64_i64; 162 Table[RTLIB::DIV_F32] = f32_func_f32_f32; 163 Table[RTLIB::DIV_F64] = f64_func_f64_f64; 164 Table[RTLIB::DIV_F128] = i64_i64_func_i64_i64_i64_i64; 165 Table[RTLIB::REM_F32] = f32_func_f32_f32; 166 Table[RTLIB::REM_F64] = f64_func_f64_f64; 167 Table[RTLIB::REM_F128] = i64_i64_func_i64_i64_i64_i64; 168 Table[RTLIB::FMA_F32] = f32_func_f32_f32_f32; 169 Table[RTLIB::FMA_F64] = f64_func_f64_f64_f64; 170 Table[RTLIB::FMA_F128] = i64_i64_func_i64_i64_i64_i64_i64_i64; 171 Table[RTLIB::POWI_F32] = f32_func_f32_i32; 172 Table[RTLIB::POWI_F64] = f64_func_f64_i32; 173 Table[RTLIB::POWI_F128] = i64_i64_func_i64_i64_i32; 174 Table[RTLIB::SQRT_F32] = f32_func_f32; 175 Table[RTLIB::SQRT_F64] = f64_func_f64; 176 Table[RTLIB::SQRT_F128] = i64_i64_func_i64_i64; 177 Table[RTLIB::CBRT_F32] = f32_func_f32; 178 Table[RTLIB::CBRT_F64] = f64_func_f64; 179 Table[RTLIB::CBRT_F128] = i64_i64_func_i64_i64; 180 Table[RTLIB::LOG_F32] = f32_func_f32; 181 Table[RTLIB::LOG_F64] = f64_func_f64; 182 Table[RTLIB::LOG_F128] = i64_i64_func_i64_i64; 183 Table[RTLIB::LOG2_F32] = f32_func_f32; 184 Table[RTLIB::LOG2_F64] = f64_func_f64; 185 Table[RTLIB::LOG2_F128] = i64_i64_func_i64_i64; 186 Table[RTLIB::LOG10_F32] = f32_func_f32; 187 Table[RTLIB::LOG10_F64] = f64_func_f64; 188 Table[RTLIB::LOG10_F128] = i64_i64_func_i64_i64; 189 Table[RTLIB::EXP_F32] = f32_func_f32; 190 Table[RTLIB::EXP_F64] = f64_func_f64; 191 Table[RTLIB::EXP_F128] = i64_i64_func_i64_i64; 192 Table[RTLIB::EXP2_F32] = f32_func_f32; 193 Table[RTLIB::EXP2_F64] = f64_func_f64; 194 Table[RTLIB::EXP2_F128] = i64_i64_func_i64_i64; 195 Table[RTLIB::EXP10_F32] = f32_func_f32; 196 Table[RTLIB::EXP10_F64] = f64_func_f64; 197 Table[RTLIB::EXP10_F128] = i64_i64_func_i64_i64; 198 Table[RTLIB::SIN_F32] = f32_func_f32; 199 Table[RTLIB::SIN_F64] = f64_func_f64; 200 Table[RTLIB::SIN_F128] = i64_i64_func_i64_i64; 201 Table[RTLIB::COS_F32] = f32_func_f32; 202 Table[RTLIB::COS_F64] = f64_func_f64; 203 Table[RTLIB::COS_F128] = i64_i64_func_i64_i64; 204 Table[RTLIB::SINCOS_F32] = func_f32_iPTR_iPTR; 205 Table[RTLIB::SINCOS_F64] = func_f64_iPTR_iPTR; 206 Table[RTLIB::SINCOS_F128] = func_i64_i64_iPTR_iPTR; 207 Table[RTLIB::POW_F32] = f32_func_f32_f32; 208 Table[RTLIB::POW_F64] = f64_func_f64_f64; 209 Table[RTLIB::POW_F128] = i64_i64_func_i64_i64_i64_i64; 210 Table[RTLIB::CEIL_F32] = f32_func_f32; 211 Table[RTLIB::CEIL_F64] = f64_func_f64; 212 Table[RTLIB::CEIL_F128] = i64_i64_func_i64_i64; 213 Table[RTLIB::TRUNC_F32] = f32_func_f32; 214 Table[RTLIB::TRUNC_F64] = f64_func_f64; 215 Table[RTLIB::TRUNC_F128] = i64_i64_func_i64_i64; 216 Table[RTLIB::RINT_F32] = f32_func_f32; 217 Table[RTLIB::RINT_F64] = f64_func_f64; 218 Table[RTLIB::RINT_F128] = i64_i64_func_i64_i64; 219 Table[RTLIB::NEARBYINT_F32] = f32_func_f32; 220 Table[RTLIB::NEARBYINT_F64] = f64_func_f64; 221 Table[RTLIB::NEARBYINT_F128] = i64_i64_func_i64_i64; 222 Table[RTLIB::ROUND_F32] = f32_func_f32; 223 Table[RTLIB::ROUND_F64] = f64_func_f64; 224 Table[RTLIB::ROUND_F128] = i64_i64_func_i64_i64; 225 Table[RTLIB::ROUNDEVEN_F32] = f32_func_f32; 226 Table[RTLIB::ROUNDEVEN_F64] = f64_func_f64; 227 Table[RTLIB::ROUNDEVEN_F128] = i64_i64_func_i64_i64; 228 Table[RTLIB::LROUND_F32] = iPTR_func_f32; 229 Table[RTLIB::LROUND_F64] = iPTR_func_f64; 230 Table[RTLIB::LROUND_F128] = iPTR_func_i64_i64; 231 Table[RTLIB::LLROUND_F32] = i64_func_f32; 232 Table[RTLIB::LLROUND_F64] = i64_func_f64; 233 Table[RTLIB::LLROUND_F128] = i64_func_i64_i64; 234 Table[RTLIB::LRINT_F32] = iPTR_func_f32; 235 Table[RTLIB::LRINT_F64] = iPTR_func_f64; 236 Table[RTLIB::LRINT_F128] = iPTR_func_i64_i64; 237 Table[RTLIB::LLRINT_F32] = i64_func_f32; 238 Table[RTLIB::LLRINT_F64] = i64_func_f64; 239 Table[RTLIB::LLRINT_F128] = i64_func_i64_i64; 240 Table[RTLIB::FLOOR_F32] = f32_func_f32; 241 Table[RTLIB::FLOOR_F64] = f64_func_f64; 242 Table[RTLIB::FLOOR_F128] = i64_i64_func_i64_i64; 243 Table[RTLIB::COPYSIGN_F32] = f32_func_f32_f32; 244 Table[RTLIB::COPYSIGN_F64] = f64_func_f64_f64; 245 Table[RTLIB::COPYSIGN_F128] = i64_i64_func_i64_i64_i64_i64; 246 Table[RTLIB::FMIN_F32] = f32_func_f32_f32; 247 Table[RTLIB::FMIN_F64] = f64_func_f64_f64; 248 Table[RTLIB::FMIN_F128] = i64_i64_func_i64_i64_i64_i64; 249 Table[RTLIB::FMAX_F32] = f32_func_f32_f32; 250 Table[RTLIB::FMAX_F64] = f64_func_f64_f64; 251 Table[RTLIB::FMAX_F128] = i64_i64_func_i64_i64_i64_i64; 252 Table[RTLIB::LDEXP_F32] = f32_func_f32_i32; 253 Table[RTLIB::LDEXP_F64] = f64_func_f64_i32; 254 Table[RTLIB::LDEXP_F128] = i64_i64_func_i64_i64_i32; 255 Table[RTLIB::FREXP_F32] = f32_func_f32_i32; 256 Table[RTLIB::FREXP_F64] = f64_func_f64_i32; 257 Table[RTLIB::FREXP_F128] = i64_i64_func_i64_i64_i32; 258 259 // Conversion 260 // All F80 and PPCF128 routines are unsupported. 261 Table[RTLIB::FPEXT_F64_F128] = i64_i64_func_f64; 262 Table[RTLIB::FPEXT_F32_F128] = i64_i64_func_f32; 263 Table[RTLIB::FPEXT_F32_F64] = f64_func_f32; 264 Table[RTLIB::FPEXT_F16_F32] = f32_func_i16; 265 Table[RTLIB::FPROUND_F32_F16] = i16_func_f32; 266 Table[RTLIB::FPROUND_F64_F16] = i16_func_f64; 267 Table[RTLIB::FPROUND_F64_F32] = f32_func_f64; 268 Table[RTLIB::FPROUND_F128_F16] = i16_func_i64_i64; 269 Table[RTLIB::FPROUND_F128_F32] = f32_func_i64_i64; 270 Table[RTLIB::FPROUND_F128_F64] = f64_func_i64_i64; 271 Table[RTLIB::FPTOSINT_F32_I32] = i32_func_f32; 272 Table[RTLIB::FPTOSINT_F32_I64] = i64_func_f32; 273 Table[RTLIB::FPTOSINT_F32_I128] = i64_i64_func_f32; 274 Table[RTLIB::FPTOSINT_F64_I32] = i32_func_f64; 275 Table[RTLIB::FPTOSINT_F64_I64] = i64_func_f64; 276 Table[RTLIB::FPTOSINT_F64_I128] = i64_i64_func_f64; 277 Table[RTLIB::FPTOSINT_F128_I32] = i32_func_i64_i64; 278 Table[RTLIB::FPTOSINT_F128_I64] = i64_func_i64_i64; 279 Table[RTLIB::FPTOSINT_F128_I128] = i64_i64_func_i64_i64; 280 Table[RTLIB::FPTOUINT_F32_I32] = i32_func_f32; 281 Table[RTLIB::FPTOUINT_F32_I64] = i64_func_f32; 282 Table[RTLIB::FPTOUINT_F32_I128] = i64_i64_func_f32; 283 Table[RTLIB::FPTOUINT_F64_I32] = i32_func_f64; 284 Table[RTLIB::FPTOUINT_F64_I64] = i64_func_f64; 285 Table[RTLIB::FPTOUINT_F64_I128] = i64_i64_func_f64; 286 Table[RTLIB::FPTOUINT_F128_I32] = i32_func_i64_i64; 287 Table[RTLIB::FPTOUINT_F128_I64] = i64_func_i64_i64; 288 Table[RTLIB::FPTOUINT_F128_I128] = i64_i64_func_i64_i64; 289 Table[RTLIB::SINTTOFP_I32_F32] = f32_func_i32; 290 Table[RTLIB::SINTTOFP_I32_F64] = f64_func_i32; 291 Table[RTLIB::SINTTOFP_I32_F128] = i64_i64_func_i32; 292 Table[RTLIB::SINTTOFP_I64_F32] = f32_func_i64; 293 Table[RTLIB::SINTTOFP_I64_F64] = f64_func_i64; 294 Table[RTLIB::SINTTOFP_I64_F128] = i64_i64_func_i64; 295 Table[RTLIB::SINTTOFP_I128_F32] = f32_func_i64_i64; 296 Table[RTLIB::SINTTOFP_I128_F64] = f64_func_i64_i64; 297 Table[RTLIB::SINTTOFP_I128_F128] = i64_i64_func_i64_i64; 298 Table[RTLIB::UINTTOFP_I32_F32] = f32_func_i32; 299 Table[RTLIB::UINTTOFP_I32_F64] = f64_func_i64; 300 Table[RTLIB::UINTTOFP_I32_F128] = i64_i64_func_i32; 301 Table[RTLIB::UINTTOFP_I64_F32] = f32_func_i64; 302 Table[RTLIB::UINTTOFP_I64_F64] = f64_func_i64; 303 Table[RTLIB::UINTTOFP_I64_F128] = i64_i64_func_i64; 304 Table[RTLIB::UINTTOFP_I128_F32] = f32_func_i64_i64; 305 Table[RTLIB::UINTTOFP_I128_F64] = f64_func_i64_i64; 306 Table[RTLIB::UINTTOFP_I128_F128] = i64_i64_func_i64_i64; 307 308 // Comparison 309 // ALl F80 and PPCF128 routines are unsupported. 310 Table[RTLIB::OEQ_F32] = i32_func_f32_f32; 311 Table[RTLIB::OEQ_F64] = i32_func_f64_f64; 312 Table[RTLIB::OEQ_F128] = i32_func_i64_i64_i64_i64; 313 Table[RTLIB::UNE_F32] = i32_func_f32_f32; 314 Table[RTLIB::UNE_F64] = i32_func_f64_f64; 315 Table[RTLIB::UNE_F128] = i32_func_i64_i64_i64_i64; 316 Table[RTLIB::OGE_F32] = i32_func_f32_f32; 317 Table[RTLIB::OGE_F64] = i32_func_f64_f64; 318 Table[RTLIB::OGE_F128] = i32_func_i64_i64_i64_i64; 319 Table[RTLIB::OLT_F32] = i32_func_f32_f32; 320 Table[RTLIB::OLT_F64] = i32_func_f64_f64; 321 Table[RTLIB::OLT_F128] = i32_func_i64_i64_i64_i64; 322 Table[RTLIB::OLE_F32] = i32_func_f32_f32; 323 Table[RTLIB::OLE_F64] = i32_func_f64_f64; 324 Table[RTLIB::OLE_F128] = i32_func_i64_i64_i64_i64; 325 Table[RTLIB::OGT_F32] = i32_func_f32_f32; 326 Table[RTLIB::OGT_F64] = i32_func_f64_f64; 327 Table[RTLIB::OGT_F128] = i32_func_i64_i64_i64_i64; 328 Table[RTLIB::UO_F32] = i32_func_f32_f32; 329 Table[RTLIB::UO_F64] = i32_func_f64_f64; 330 Table[RTLIB::UO_F128] = i32_func_i64_i64_i64_i64; 331 332 // Memory 333 Table[RTLIB::MEMCPY] = iPTR_func_iPTR_iPTR_iPTR; 334 Table[RTLIB::MEMSET] = iPTR_func_iPTR_i32_iPTR; 335 Table[RTLIB::MEMMOVE] = iPTR_func_iPTR_iPTR_iPTR; 336 337 // __stack_chk_fail 338 Table[RTLIB::STACKPROTECTOR_CHECK_FAIL] = func; 339 340 // Return address handling 341 Table[RTLIB::RETURN_ADDRESS] = iPTR_func_i32; 342 343 // Element-wise Atomic memory 344 // TODO: Fix these when we implement atomic support 345 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_1] = unsupported; 346 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_2] = unsupported; 347 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_4] = unsupported; 348 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_8] = unsupported; 349 Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_16] = unsupported; 350 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_1] = unsupported; 351 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_2] = unsupported; 352 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_4] = unsupported; 353 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_8] = unsupported; 354 Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_16] = unsupported; 355 356 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_1] = unsupported; 357 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_2] = unsupported; 358 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_4] = unsupported; 359 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_8] = unsupported; 360 Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_16] = unsupported; 361 362 // Atomic '__sync_*' libcalls. 363 // TODO: Fix these when we implement atomic support 364 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_1] = unsupported; 365 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_2] = unsupported; 366 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_4] = unsupported; 367 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_8] = unsupported; 368 Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_16] = unsupported; 369 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_1] = unsupported; 370 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_2] = unsupported; 371 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_4] = unsupported; 372 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_8] = unsupported; 373 Table[RTLIB::SYNC_LOCK_TEST_AND_SET_16] = unsupported; 374 Table[RTLIB::SYNC_FETCH_AND_ADD_1] = unsupported; 375 Table[RTLIB::SYNC_FETCH_AND_ADD_2] = unsupported; 376 Table[RTLIB::SYNC_FETCH_AND_ADD_4] = unsupported; 377 Table[RTLIB::SYNC_FETCH_AND_ADD_8] = unsupported; 378 Table[RTLIB::SYNC_FETCH_AND_ADD_16] = unsupported; 379 Table[RTLIB::SYNC_FETCH_AND_SUB_1] = unsupported; 380 Table[RTLIB::SYNC_FETCH_AND_SUB_2] = unsupported; 381 Table[RTLIB::SYNC_FETCH_AND_SUB_4] = unsupported; 382 Table[RTLIB::SYNC_FETCH_AND_SUB_8] = unsupported; 383 Table[RTLIB::SYNC_FETCH_AND_SUB_16] = unsupported; 384 Table[RTLIB::SYNC_FETCH_AND_AND_1] = unsupported; 385 Table[RTLIB::SYNC_FETCH_AND_AND_2] = unsupported; 386 Table[RTLIB::SYNC_FETCH_AND_AND_4] = unsupported; 387 Table[RTLIB::SYNC_FETCH_AND_AND_8] = unsupported; 388 Table[RTLIB::SYNC_FETCH_AND_AND_16] = unsupported; 389 Table[RTLIB::SYNC_FETCH_AND_OR_1] = unsupported; 390 Table[RTLIB::SYNC_FETCH_AND_OR_2] = unsupported; 391 Table[RTLIB::SYNC_FETCH_AND_OR_4] = unsupported; 392 Table[RTLIB::SYNC_FETCH_AND_OR_8] = unsupported; 393 Table[RTLIB::SYNC_FETCH_AND_OR_16] = unsupported; 394 Table[RTLIB::SYNC_FETCH_AND_XOR_1] = unsupported; 395 Table[RTLIB::SYNC_FETCH_AND_XOR_2] = unsupported; 396 Table[RTLIB::SYNC_FETCH_AND_XOR_4] = unsupported; 397 Table[RTLIB::SYNC_FETCH_AND_XOR_8] = unsupported; 398 Table[RTLIB::SYNC_FETCH_AND_XOR_16] = unsupported; 399 Table[RTLIB::SYNC_FETCH_AND_NAND_1] = unsupported; 400 Table[RTLIB::SYNC_FETCH_AND_NAND_2] = unsupported; 401 Table[RTLIB::SYNC_FETCH_AND_NAND_4] = unsupported; 402 Table[RTLIB::SYNC_FETCH_AND_NAND_8] = unsupported; 403 Table[RTLIB::SYNC_FETCH_AND_NAND_16] = unsupported; 404 Table[RTLIB::SYNC_FETCH_AND_MAX_1] = unsupported; 405 Table[RTLIB::SYNC_FETCH_AND_MAX_2] = unsupported; 406 Table[RTLIB::SYNC_FETCH_AND_MAX_4] = unsupported; 407 Table[RTLIB::SYNC_FETCH_AND_MAX_8] = unsupported; 408 Table[RTLIB::SYNC_FETCH_AND_MAX_16] = unsupported; 409 Table[RTLIB::SYNC_FETCH_AND_UMAX_1] = unsupported; 410 Table[RTLIB::SYNC_FETCH_AND_UMAX_2] = unsupported; 411 Table[RTLIB::SYNC_FETCH_AND_UMAX_4] = unsupported; 412 Table[RTLIB::SYNC_FETCH_AND_UMAX_8] = unsupported; 413 Table[RTLIB::SYNC_FETCH_AND_UMAX_16] = unsupported; 414 Table[RTLIB::SYNC_FETCH_AND_MIN_1] = unsupported; 415 Table[RTLIB::SYNC_FETCH_AND_MIN_2] = unsupported; 416 Table[RTLIB::SYNC_FETCH_AND_MIN_4] = unsupported; 417 Table[RTLIB::SYNC_FETCH_AND_MIN_8] = unsupported; 418 Table[RTLIB::SYNC_FETCH_AND_MIN_16] = unsupported; 419 Table[RTLIB::SYNC_FETCH_AND_UMIN_1] = unsupported; 420 Table[RTLIB::SYNC_FETCH_AND_UMIN_2] = unsupported; 421 Table[RTLIB::SYNC_FETCH_AND_UMIN_4] = unsupported; 422 Table[RTLIB::SYNC_FETCH_AND_UMIN_8] = unsupported; 423 Table[RTLIB::SYNC_FETCH_AND_UMIN_16] = unsupported; 424 425 // Atomic '__atomic_*' libcalls. 426 // TODO: Fix these when we implement atomic support 427 Table[RTLIB::ATOMIC_LOAD] = unsupported; 428 Table[RTLIB::ATOMIC_LOAD_1] = unsupported; 429 Table[RTLIB::ATOMIC_LOAD_2] = unsupported; 430 Table[RTLIB::ATOMIC_LOAD_4] = unsupported; 431 Table[RTLIB::ATOMIC_LOAD_8] = unsupported; 432 Table[RTLIB::ATOMIC_LOAD_16] = unsupported; 433 434 Table[RTLIB::ATOMIC_STORE] = unsupported; 435 Table[RTLIB::ATOMIC_STORE_1] = unsupported; 436 Table[RTLIB::ATOMIC_STORE_2] = unsupported; 437 Table[RTLIB::ATOMIC_STORE_4] = unsupported; 438 Table[RTLIB::ATOMIC_STORE_8] = unsupported; 439 Table[RTLIB::ATOMIC_STORE_16] = unsupported; 440 441 Table[RTLIB::ATOMIC_EXCHANGE] = unsupported; 442 Table[RTLIB::ATOMIC_EXCHANGE_1] = unsupported; 443 Table[RTLIB::ATOMIC_EXCHANGE_2] = unsupported; 444 Table[RTLIB::ATOMIC_EXCHANGE_4] = unsupported; 445 Table[RTLIB::ATOMIC_EXCHANGE_8] = unsupported; 446 Table[RTLIB::ATOMIC_EXCHANGE_16] = unsupported; 447 448 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE] = unsupported; 449 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_1] = unsupported; 450 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_2] = unsupported; 451 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_4] = unsupported; 452 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_8] = unsupported; 453 Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_16] = unsupported; 454 455 Table[RTLIB::ATOMIC_FETCH_ADD_1] = unsupported; 456 Table[RTLIB::ATOMIC_FETCH_ADD_2] = unsupported; 457 Table[RTLIB::ATOMIC_FETCH_ADD_4] = unsupported; 458 Table[RTLIB::ATOMIC_FETCH_ADD_8] = unsupported; 459 Table[RTLIB::ATOMIC_FETCH_ADD_16] = unsupported; 460 461 Table[RTLIB::ATOMIC_FETCH_SUB_1] = unsupported; 462 Table[RTLIB::ATOMIC_FETCH_SUB_2] = unsupported; 463 Table[RTLIB::ATOMIC_FETCH_SUB_4] = unsupported; 464 Table[RTLIB::ATOMIC_FETCH_SUB_8] = unsupported; 465 Table[RTLIB::ATOMIC_FETCH_SUB_16] = unsupported; 466 467 Table[RTLIB::ATOMIC_FETCH_AND_1] = unsupported; 468 Table[RTLIB::ATOMIC_FETCH_AND_2] = unsupported; 469 Table[RTLIB::ATOMIC_FETCH_AND_4] = unsupported; 470 Table[RTLIB::ATOMIC_FETCH_AND_8] = unsupported; 471 Table[RTLIB::ATOMIC_FETCH_AND_16] = unsupported; 472 473 Table[RTLIB::ATOMIC_FETCH_OR_1] = unsupported; 474 Table[RTLIB::ATOMIC_FETCH_OR_2] = unsupported; 475 Table[RTLIB::ATOMIC_FETCH_OR_4] = unsupported; 476 Table[RTLIB::ATOMIC_FETCH_OR_8] = unsupported; 477 Table[RTLIB::ATOMIC_FETCH_OR_16] = unsupported; 478 479 Table[RTLIB::ATOMIC_FETCH_XOR_1] = unsupported; 480 Table[RTLIB::ATOMIC_FETCH_XOR_2] = unsupported; 481 Table[RTLIB::ATOMIC_FETCH_XOR_4] = unsupported; 482 Table[RTLIB::ATOMIC_FETCH_XOR_8] = unsupported; 483 Table[RTLIB::ATOMIC_FETCH_XOR_16] = unsupported; 484 485 Table[RTLIB::ATOMIC_FETCH_NAND_1] = unsupported; 486 Table[RTLIB::ATOMIC_FETCH_NAND_2] = unsupported; 487 Table[RTLIB::ATOMIC_FETCH_NAND_4] = unsupported; 488 Table[RTLIB::ATOMIC_FETCH_NAND_8] = unsupported; 489 Table[RTLIB::ATOMIC_FETCH_NAND_16] = unsupported; 490 } 491 }; 492 493 RuntimeLibcallSignatureTable &getRuntimeLibcallSignatures() { 494 static RuntimeLibcallSignatureTable RuntimeLibcallSignatures; 495 return RuntimeLibcallSignatures; 496 } 497 498 // Maps libcall names to their RTLIB::Libcall number. Builds the map in a 499 // constructor for use with a static variable 500 struct StaticLibcallNameMap { 501 StringMap<RTLIB::Libcall> Map; 502 StaticLibcallNameMap() { 503 static const std::pair<const char *, RTLIB::Libcall> NameLibcalls[] = { 504 #define HANDLE_LIBCALL(code, name) {(const char *)name, RTLIB::code}, 505 #include "llvm/IR/RuntimeLibcalls.def" 506 #undef HANDLE_LIBCALL 507 }; 508 for (const auto &NameLibcall : NameLibcalls) { 509 if (NameLibcall.first != nullptr && 510 getRuntimeLibcallSignatures().Table[NameLibcall.second] != 511 unsupported) { 512 assert(!Map.contains(NameLibcall.first) && 513 "duplicate libcall names in name map"); 514 Map[NameLibcall.first] = NameLibcall.second; 515 } 516 } 517 // Override the __gnu_f2h_ieee/__gnu_h2f_ieee names so that the f32 name is 518 // consistent with the f64 and f128 names. 519 Map["__extendhfsf2"] = RTLIB::FPEXT_F16_F32; 520 Map["__truncsfhf2"] = RTLIB::FPROUND_F32_F16; 521 522 Map["emscripten_return_address"] = RTLIB::RETURN_ADDRESS; 523 } 524 }; 525 526 } // end anonymous namespace 527 528 void WebAssembly::getLibcallSignature(const WebAssemblySubtarget &Subtarget, 529 RTLIB::Libcall LC, 530 SmallVectorImpl<wasm::ValType> &Rets, 531 SmallVectorImpl<wasm::ValType> &Params) { 532 assert(Rets.empty()); 533 assert(Params.empty()); 534 535 wasm::ValType PtrTy = 536 Subtarget.hasAddr64() ? wasm::ValType::I64 : wasm::ValType::I32; 537 538 auto &Table = getRuntimeLibcallSignatures().Table; 539 switch (Table[LC]) { 540 case func: 541 break; 542 case f32_func_f32: 543 Rets.push_back(wasm::ValType::F32); 544 Params.push_back(wasm::ValType::F32); 545 break; 546 case f32_func_f64: 547 Rets.push_back(wasm::ValType::F32); 548 Params.push_back(wasm::ValType::F64); 549 break; 550 case f32_func_i32: 551 Rets.push_back(wasm::ValType::F32); 552 Params.push_back(wasm::ValType::I32); 553 break; 554 case f32_func_i64: 555 Rets.push_back(wasm::ValType::F32); 556 Params.push_back(wasm::ValType::I64); 557 break; 558 case f32_func_i16: 559 Rets.push_back(wasm::ValType::F32); 560 Params.push_back(wasm::ValType::I32); 561 break; 562 case f64_func_f32: 563 Rets.push_back(wasm::ValType::F64); 564 Params.push_back(wasm::ValType::F32); 565 break; 566 case f64_func_f64: 567 Rets.push_back(wasm::ValType::F64); 568 Params.push_back(wasm::ValType::F64); 569 break; 570 case f64_func_i32: 571 Rets.push_back(wasm::ValType::F64); 572 Params.push_back(wasm::ValType::I32); 573 break; 574 case f64_func_i64: 575 Rets.push_back(wasm::ValType::F64); 576 Params.push_back(wasm::ValType::I64); 577 break; 578 case i32_func_f32: 579 Rets.push_back(wasm::ValType::I32); 580 Params.push_back(wasm::ValType::F32); 581 break; 582 case i32_func_f64: 583 Rets.push_back(wasm::ValType::I32); 584 Params.push_back(wasm::ValType::F64); 585 break; 586 case i32_func_i32: 587 Rets.push_back(wasm::ValType::I32); 588 Params.push_back(wasm::ValType::I32); 589 break; 590 case i64_func_f32: 591 Rets.push_back(wasm::ValType::I64); 592 Params.push_back(wasm::ValType::F32); 593 break; 594 case i64_func_f64: 595 Rets.push_back(wasm::ValType::I64); 596 Params.push_back(wasm::ValType::F64); 597 break; 598 case i64_func_i64: 599 Rets.push_back(wasm::ValType::I64); 600 Params.push_back(wasm::ValType::I64); 601 break; 602 case f32_func_f32_f32: 603 Rets.push_back(wasm::ValType::F32); 604 Params.push_back(wasm::ValType::F32); 605 Params.push_back(wasm::ValType::F32); 606 break; 607 case f32_func_f32_i32: 608 Rets.push_back(wasm::ValType::F32); 609 Params.push_back(wasm::ValType::F32); 610 Params.push_back(wasm::ValType::I32); 611 break; 612 case f32_func_i64_i64: 613 Rets.push_back(wasm::ValType::F32); 614 Params.push_back(wasm::ValType::I64); 615 Params.push_back(wasm::ValType::I64); 616 break; 617 case f64_func_f64_f64: 618 Rets.push_back(wasm::ValType::F64); 619 Params.push_back(wasm::ValType::F64); 620 Params.push_back(wasm::ValType::F64); 621 break; 622 case f64_func_f64_i32: 623 Rets.push_back(wasm::ValType::F64); 624 Params.push_back(wasm::ValType::F64); 625 Params.push_back(wasm::ValType::I32); 626 break; 627 case f64_func_i64_i64: 628 Rets.push_back(wasm::ValType::F64); 629 Params.push_back(wasm::ValType::I64); 630 Params.push_back(wasm::ValType::I64); 631 break; 632 case i16_func_f32: 633 Rets.push_back(wasm::ValType::I32); 634 Params.push_back(wasm::ValType::F32); 635 break; 636 case i16_func_f64: 637 Rets.push_back(wasm::ValType::I32); 638 Params.push_back(wasm::ValType::F64); 639 break; 640 case i16_func_i64_i64: 641 Rets.push_back(wasm::ValType::I32); 642 Params.push_back(wasm::ValType::I64); 643 Params.push_back(wasm::ValType::I64); 644 break; 645 case i8_func_i8_i8: 646 Rets.push_back(wasm::ValType::I32); 647 Params.push_back(wasm::ValType::I32); 648 Params.push_back(wasm::ValType::I32); 649 break; 650 case func_f32_iPTR_iPTR: 651 Params.push_back(wasm::ValType::F32); 652 Params.push_back(PtrTy); 653 Params.push_back(PtrTy); 654 break; 655 case func_f64_iPTR_iPTR: 656 Params.push_back(wasm::ValType::F64); 657 Params.push_back(PtrTy); 658 Params.push_back(PtrTy); 659 break; 660 case i16_func_i16_i16: 661 Rets.push_back(wasm::ValType::I32); 662 Params.push_back(wasm::ValType::I32); 663 Params.push_back(wasm::ValType::I32); 664 break; 665 case i32_func_f32_f32: 666 Rets.push_back(wasm::ValType::I32); 667 Params.push_back(wasm::ValType::F32); 668 Params.push_back(wasm::ValType::F32); 669 break; 670 case i32_func_f64_f64: 671 Rets.push_back(wasm::ValType::I32); 672 Params.push_back(wasm::ValType::F64); 673 Params.push_back(wasm::ValType::F64); 674 break; 675 case i32_func_i32_i32: 676 Rets.push_back(wasm::ValType::I32); 677 Params.push_back(wasm::ValType::I32); 678 Params.push_back(wasm::ValType::I32); 679 break; 680 case i32_func_i32_i32_iPTR: 681 Rets.push_back(wasm::ValType::I32); 682 Params.push_back(wasm::ValType::I32); 683 Params.push_back(wasm::ValType::I32); 684 Params.push_back(PtrTy); 685 break; 686 case i64_func_i64_i64: 687 Rets.push_back(wasm::ValType::I64); 688 Params.push_back(wasm::ValType::I64); 689 Params.push_back(wasm::ValType::I64); 690 break; 691 case i64_func_i64_i64_iPTR: 692 Rets.push_back(wasm::ValType::I64); 693 Params.push_back(wasm::ValType::I64); 694 Params.push_back(wasm::ValType::I64); 695 Params.push_back(PtrTy); 696 break; 697 case i64_i64_func_f32: 698 if (WebAssembly::canLowerMultivalueReturn(&Subtarget)) { 699 Rets.push_back(wasm::ValType::I64); 700 Rets.push_back(wasm::ValType::I64); 701 } else { 702 Params.push_back(PtrTy); 703 } 704 Params.push_back(wasm::ValType::F32); 705 break; 706 case i64_i64_func_f64: 707 if (WebAssembly::canLowerMultivalueReturn(&Subtarget)) { 708 Rets.push_back(wasm::ValType::I64); 709 Rets.push_back(wasm::ValType::I64); 710 } else { 711 Params.push_back(PtrTy); 712 } 713 Params.push_back(wasm::ValType::F64); 714 break; 715 case i16_i16_func_i16_i16: 716 if (WebAssembly::canLowerMultivalueReturn(&Subtarget)) { 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 i32_i32_func_i32_i32: 726 if (WebAssembly::canLowerMultivalueReturn(&Subtarget)) { 727 Rets.push_back(wasm::ValType::I32); 728 Rets.push_back(wasm::ValType::I32); 729 } else { 730 Params.push_back(PtrTy); 731 } 732 Params.push_back(wasm::ValType::I32); 733 Params.push_back(wasm::ValType::I32); 734 break; 735 case i64_i64_func_i64_i64: 736 if (WebAssembly::canLowerMultivalueReturn(&Subtarget)) { 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 break; 745 case i64_i64_func_i64_i64_i64_i64: 746 if (WebAssembly::canLowerMultivalueReturn(&Subtarget)) { 747 Rets.push_back(wasm::ValType::I64); 748 Rets.push_back(wasm::ValType::I64); 749 } else { 750 Params.push_back(PtrTy); 751 } 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(wasm::ValType::I64); 756 break; 757 case i64_i64_func_i64_i64_i64_i64_iPTR: 758 if (WebAssembly::canLowerMultivalueReturn(&Subtarget)) { 759 Rets.push_back(wasm::ValType::I64); 760 Rets.push_back(wasm::ValType::I64); 761 } else { 762 Params.push_back(PtrTy); 763 } 764 Params.push_back(wasm::ValType::I64); 765 Params.push_back(wasm::ValType::I64); 766 Params.push_back(wasm::ValType::I64); 767 Params.push_back(wasm::ValType::I64); 768 Params.push_back(PtrTy); 769 break; 770 case i64_i64_i64_i64_func_i64_i64_i64_i64: 771 if (WebAssembly::canLowerMultivalueReturn(&Subtarget)) { 772 Rets.push_back(wasm::ValType::I64); 773 Rets.push_back(wasm::ValType::I64); 774 Rets.push_back(wasm::ValType::I64); 775 Rets.push_back(wasm::ValType::I64); 776 } else { 777 Params.push_back(PtrTy); 778 } 779 Params.push_back(wasm::ValType::I64); 780 Params.push_back(wasm::ValType::I64); 781 Params.push_back(wasm::ValType::I64); 782 Params.push_back(wasm::ValType::I64); 783 break; 784 case i64_i64_func_i64_i64_i32: 785 if (WebAssembly::canLowerMultivalueReturn(&Subtarget)) { 786 Rets.push_back(wasm::ValType::I64); 787 Rets.push_back(wasm::ValType::I64); 788 } else { 789 Params.push_back(PtrTy); 790 } 791 Params.push_back(wasm::ValType::I64); 792 Params.push_back(wasm::ValType::I64); 793 Params.push_back(wasm::ValType::I32); 794 break; 795 case iPTR_func_i32: 796 Rets.push_back(PtrTy); 797 Params.push_back(wasm::ValType::I32); 798 break; 799 case iPTR_func_iPTR_i32_iPTR: 800 Rets.push_back(PtrTy); 801 Params.push_back(PtrTy); 802 Params.push_back(wasm::ValType::I32); 803 Params.push_back(PtrTy); 804 break; 805 case iPTR_func_iPTR_iPTR_iPTR: 806 Rets.push_back(PtrTy); 807 Params.push_back(PtrTy); 808 Params.push_back(PtrTy); 809 Params.push_back(PtrTy); 810 break; 811 case f32_func_f32_f32_f32: 812 Rets.push_back(wasm::ValType::F32); 813 Params.push_back(wasm::ValType::F32); 814 Params.push_back(wasm::ValType::F32); 815 Params.push_back(wasm::ValType::F32); 816 break; 817 case f64_func_f64_f64_f64: 818 Rets.push_back(wasm::ValType::F64); 819 Params.push_back(wasm::ValType::F64); 820 Params.push_back(wasm::ValType::F64); 821 Params.push_back(wasm::ValType::F64); 822 break; 823 case func_i64_i64_iPTR_iPTR: 824 Params.push_back(wasm::ValType::I64); 825 Params.push_back(wasm::ValType::I64); 826 Params.push_back(PtrTy); 827 Params.push_back(PtrTy); 828 break; 829 case i32_func_i64_i64: 830 Rets.push_back(wasm::ValType::I32); 831 Params.push_back(wasm::ValType::I64); 832 Params.push_back(wasm::ValType::I64); 833 break; 834 case i32_func_i64_i64_i64_i64: 835 Rets.push_back(wasm::ValType::I32); 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 break; 841 case iPTR_func_f32: 842 Rets.push_back(PtrTy); 843 Params.push_back(wasm::ValType::F32); 844 break; 845 case iPTR_func_f64: 846 Rets.push_back(PtrTy); 847 Params.push_back(wasm::ValType::F64); 848 break; 849 case iPTR_func_i64_i64: 850 Rets.push_back(PtrTy); 851 Params.push_back(wasm::ValType::I64); 852 Params.push_back(wasm::ValType::I64); 853 break; 854 case i64_i64_func_i64_i64_i64_i64_i64_i64: 855 if (WebAssembly::canLowerMultivalueReturn(&Subtarget)) { 856 Rets.push_back(wasm::ValType::I64); 857 Rets.push_back(wasm::ValType::I64); 858 } else { 859 Params.push_back(PtrTy); 860 } 861 Params.push_back(wasm::ValType::I64); 862 Params.push_back(wasm::ValType::I64); 863 Params.push_back(wasm::ValType::I64); 864 Params.push_back(wasm::ValType::I64); 865 Params.push_back(wasm::ValType::I64); 866 Params.push_back(wasm::ValType::I64); 867 break; 868 case i64_i64_func_i32: 869 if (WebAssembly::canLowerMultivalueReturn(&Subtarget)) { 870 Rets.push_back(wasm::ValType::I64); 871 Rets.push_back(wasm::ValType::I64); 872 } else { 873 Params.push_back(PtrTy); 874 } 875 Params.push_back(wasm::ValType::I32); 876 break; 877 case i64_i64_func_i64: 878 if (WebAssembly::canLowerMultivalueReturn(&Subtarget)) { 879 Rets.push_back(wasm::ValType::I64); 880 Rets.push_back(wasm::ValType::I64); 881 } else { 882 Params.push_back(PtrTy); 883 } 884 Params.push_back(wasm::ValType::I64); 885 break; 886 case unsupported: 887 llvm_unreachable("unsupported runtime library signature"); 888 } 889 } 890 891 // TODO: If the RTLIB::Libcall-taking flavor of GetSignature remains unused 892 // other than here, just roll its logic into this version. 893 void WebAssembly::getLibcallSignature(const WebAssemblySubtarget &Subtarget, 894 StringRef Name, 895 SmallVectorImpl<wasm::ValType> &Rets, 896 SmallVectorImpl<wasm::ValType> &Params) { 897 static StaticLibcallNameMap LibcallNameMap; 898 auto &Map = LibcallNameMap.Map; 899 auto Val = Map.find(Name); 900 #ifndef NDEBUG 901 if (Val == Map.end()) { 902 auto Message = 903 std::string("unexpected runtime library name: ") + std::string(Name); 904 llvm_unreachable(Message.c_str()); 905 } 906 #endif 907 return getLibcallSignature(Subtarget, Val->second, Rets, Params); 908 } 909