1 // CodeGen/RuntimeLibcallSignatures.cpp - R.T. Lib. Call Signatures -*- C++ -*--
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 ///
10 /// \file
11 /// \brief This file contains signature information for runtime libcalls.
12 ///
13 /// CodeGen uses external symbols, which it refers to by name. The WebAssembly
14 /// target needs type information for all functions. This file contains a big
15 /// table providing type signatures for all runtime library functions that LLVM
16 /// uses.
17 ///
18 /// This is currently a fairly heavy-handed solution.
19 ///
20 //===----------------------------------------------------------------------===//
21 
22 #include "WebAssemblyRuntimeLibcallSignatures.h"
23 #include "WebAssemblySubtarget.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   i8_func_i8_i8,
55   func_f32_iPTR_iPTR,
56   func_f64_iPTR_iPTR,
57   i16_func_i16_i16,
58   i32_func_f32_f32,
59   i32_func_f64_f64,
60   i32_func_i32_i32,
61   i64_func_i64_i64,
62   i64_i64_func_f32,
63   i64_i64_func_f64,
64   i16_i16_func_i16_i16,
65   i32_i32_func_i32_i32,
66   i64_i64_func_i64_i64,
67   i64_i64_func_i64_i64_i64_i64,
68   i64_i64_i64_i64_func_i64_i64_i64_i64,
69   i64_i64_func_i64_i64_i32,
70   iPTR_func_iPTR_i32_iPTR,
71   iPTR_func_iPTR_iPTR_iPTR,
72   f32_func_f32_f32_f32,
73   f64_func_f64_f64_f64,
74   func_i64_i64_iPTR_iPTR,
75   func_iPTR_f32,
76   func_iPTR_f64,
77   func_iPTR_i32,
78   func_iPTR_i64,
79   func_iPTR_i64_i64,
80   func_iPTR_i64_i64_i64_i64,
81   func_iPTR_i64_i64_i64_i64_i64_i64,
82   i32_func_i64_i64,
83   i32_func_i64_i64_i64_i64,
84   unsupported
85 };
86 
87 } // end anonymous namespace
88 
89 static const RuntimeLibcallSignature
90 RuntimeLibcallSignatures[RTLIB::UNKNOWN_LIBCALL] = {
91 // Integer
92 /* SHL_I16 */ i16_func_i16_i16,
93 /* SHL_I32 */ i32_func_i32_i32,
94 /* SHL_I64 */ i64_func_i64_i64,
95 /* SHL_I128 */ i64_i64_func_i64_i64_i32,
96 /* SRL_I16 */ i16_func_i16_i16,
97 /* SRL_I32 */ i32_func_i32_i32,
98 /* SRL_I64 */ i64_func_i64_i64,
99 /* SRL_I128 */ i64_i64_func_i64_i64_i32,
100 /* SRA_I16 */ i16_func_i16_i16,
101 /* SRA_I32 */ i32_func_i32_i32,
102 /* SRA_I64 */ i64_func_i64_i64,
103 /* SRA_I128 */ i64_i64_func_i64_i64_i32,
104 /* MUL_I8 */ i8_func_i8_i8,
105 /* MUL_I16 */ i16_func_i16_i16,
106 /* MUL_I32 */ i32_func_i32_i32,
107 /* MUL_I64 */ i64_func_i64_i64,
108 /* MUL_I128 */ i64_i64_func_i64_i64_i64_i64,
109 /* MULO_I32 */ i32_func_i32_i32,
110 /* MULO_I64 */ i64_func_i64_i64,
111 /* MULO_I128 */ i64_i64_func_i64_i64_i64_i64,
112 /* SDIV_I8 */ i8_func_i8_i8,
113 /* SDIV_I16 */ i16_func_i16_i16,
114 /* SDIV_I32 */ i32_func_i32_i32,
115 /* SDIV_I64 */ i64_func_i64_i64,
116 /* SDIV_I128 */ i64_i64_func_i64_i64_i64_i64,
117 /* UDIV_I8 */ i8_func_i8_i8,
118 /* UDIV_I16 */ i16_func_i16_i16,
119 /* UDIV_I32 */ i32_func_i32_i32,
120 /* UDIV_I64 */ i64_func_i64_i64,
121 /* UDIV_I128 */ i64_i64_func_i64_i64_i64_i64,
122 /* SREM_I8 */ i8_func_i8_i8,
123 /* SREM_I16 */ i16_func_i16_i16,
124 /* SREM_I32 */ i32_func_i32_i32,
125 /* SREM_I64 */ i64_func_i64_i64,
126 /* SREM_I128 */ i64_i64_func_i64_i64_i64_i64,
127 /* UREM_I8 */ i8_func_i8_i8,
128 /* UREM_I16 */ i16_func_i16_i16,
129 /* UREM_I32 */ i32_func_i32_i32,
130 /* UREM_I64 */ i64_func_i64_i64,
131 /* UREM_I128 */ i64_i64_func_i64_i64_i64_i64,
132 /* SDIVREM_I8 */ i8_func_i8_i8,
133 /* SDIVREM_I16 */ i16_i16_func_i16_i16,
134 /* SDIVREM_I32 */ i32_i32_func_i32_i32,
135 /* SDIVREM_I64 */ i64_func_i64_i64,
136 /* SDIVREM_I128 */ i64_i64_i64_i64_func_i64_i64_i64_i64,
137 /* UDIVREM_I8 */ i8_func_i8_i8,
138 /* UDIVREM_I16 */ i16_i16_func_i16_i16,
139 /* UDIVREM_I32 */ i32_i32_func_i32_i32,
140 /* UDIVREM_I64 */ i64_i64_func_i64_i64,
141 /* UDIVREM_I128 */ i64_i64_i64_i64_func_i64_i64_i64_i64,
142 /* NEG_I32 */ i32_func_i32,
143 /* NEG_I64 */ i64_func_i64,
144 
145 // FLOATING POINT
146 /* ADD_F32 */ f32_func_f32_f32,
147 /* ADD_F64 */ f64_func_f64_f64,
148 /* ADD_F80 */ unsupported,
149 /* ADD_F128 */ func_iPTR_i64_i64_i64_i64,
150 /* ADD_PPCF128 */ unsupported,
151 /* SUB_F32 */ f32_func_f32_f32,
152 /* SUB_F64 */ f64_func_f64_f64,
153 /* SUB_F80 */ unsupported,
154 /* SUB_F128 */ func_iPTR_i64_i64_i64_i64,
155 /* SUB_PPCF128 */ unsupported,
156 /* MUL_F32 */ f32_func_f32_f32,
157 /* MUL_F64 */ f64_func_f64_f64,
158 /* MUL_F80 */ unsupported,
159 /* MUL_F128 */ func_iPTR_i64_i64_i64_i64,
160 /* MUL_PPCF128 */ unsupported,
161 /* DIV_F32 */ f32_func_f32_f32,
162 /* DIV_F64 */ f64_func_f64_f64,
163 /* DIV_F80 */ unsupported,
164 /* DIV_F128 */ func_iPTR_i64_i64_i64_i64,
165 /* DIV_PPCF128 */ unsupported,
166 /* REM_F32 */ f32_func_f32_f32,
167 /* REM_F64 */ f64_func_f64_f64,
168 /* REM_F80 */ unsupported,
169 /* REM_F128 */ func_iPTR_i64_i64_i64_i64,
170 /* REM_PPCF128 */ unsupported,
171 /* FMA_F32 */ f32_func_f32_f32_f32,
172 /* FMA_F64 */ f64_func_f64_f64_f64,
173 /* FMA_F80 */ unsupported,
174 /* FMA_F128 */ func_iPTR_i64_i64_i64_i64_i64_i64,
175 /* FMA_PPCF128 */ unsupported,
176 /* POWI_F32 */ f32_func_f32_i32,
177 /* POWI_F64 */ f64_func_f64_i32,
178 /* POWI_F80 */ unsupported,
179 /* POWI_F128 */ func_iPTR_i64_i64_i64_i64,
180 /* POWI_PPCF128 */ unsupported,
181 /* SQRT_F32 */ f32_func_f32,
182 /* SQRT_F64 */ f64_func_f64,
183 /* SQRT_F80 */ unsupported,
184 /* SQRT_F128 */ func_iPTR_i64_i64,
185 /* SQRT_PPCF128 */ unsupported,
186 /* LOG_F32 */ f32_func_f32,
187 /* LOG_F64 */ f64_func_f64,
188 /* LOG_F80 */ unsupported,
189 /* LOG_F128 */ func_iPTR_i64_i64,
190 /* LOG_PPCF128 */ unsupported,
191 /* LOG2_F32 */ f32_func_f32,
192 /* LOG2_F64 */ f64_func_f64,
193 /* LOG2_F80 */ unsupported,
194 /* LOG2_F128 */ func_iPTR_i64_i64,
195 /* LOG2_PPCF128 */ unsupported,
196 /* LOG10_F32 */ f32_func_f32,
197 /* LOG10_F64 */ f64_func_f64,
198 /* LOG10_F80 */ unsupported,
199 /* LOG10_F128 */ func_iPTR_i64_i64,
200 /* LOG10_PPCF128 */ unsupported,
201 /* EXP_F32 */ f32_func_f32,
202 /* EXP_F64 */ f64_func_f64,
203 /* EXP_F80 */ unsupported,
204 /* EXP_F128 */ func_iPTR_i64_i64,
205 /* EXP_PPCF128 */ unsupported,
206 /* EXP2_F32 */ f32_func_f32,
207 /* EXP2_F64 */ f64_func_f64,
208 /* EXP2_F80 */ unsupported,
209 /* EXP2_F128 */ func_iPTR_i64_i64,
210 /* EXP2_PPCF128 */ unsupported,
211 /* SIN_F32 */ f32_func_f32,
212 /* SIN_F64 */ f64_func_f64,
213 /* SIN_F80 */ unsupported,
214 /* SIN_F128 */ func_iPTR_i64_i64,
215 /* SIN_PPCF128 */ unsupported,
216 /* COS_F32 */ f32_func_f32,
217 /* COS_F64 */ f64_func_f64,
218 /* COS_F80 */ unsupported,
219 /* COS_F128 */ func_iPTR_i64_i64,
220 /* COS_PPCF128 */ unsupported,
221 /* SINCOS_F32 */ func_f32_iPTR_iPTR,
222 /* SINCOS_F64 */ func_f64_iPTR_iPTR,
223 /* SINCOS_F80 */ unsupported,
224 /* SINCOS_F128 */ func_i64_i64_iPTR_iPTR,
225 /* SINCOS_PPCF128 */ unsupported,
226 /* POW_F32 */ f32_func_f32_f32,
227 /* POW_F64 */ f64_func_f64_f64,
228 /* POW_F80 */ unsupported,
229 /* POW_F128 */ func_iPTR_i64_i64_i64_i64,
230 /* POW_PPCF128 */ unsupported,
231 /* CEIL_F32 */ f32_func_f32,
232 /* CEIL_F64 */ f64_func_f64,
233 /* CEIL_F80 */ unsupported,
234 /* CEIL_F128 */ func_iPTR_i64_i64,
235 /* CEIL_PPCF128 */ unsupported,
236 /* TRUNC_F32 */ f32_func_f32,
237 /* TRUNC_F64 */ f64_func_f64,
238 /* TRUNC_F80 */ unsupported,
239 /* TRUNC_F128 */ func_iPTR_i64_i64,
240 /* TRUNC_PPCF128 */ unsupported,
241 /* RINT_F32 */ f32_func_f32,
242 /* RINT_F64 */ f64_func_f64,
243 /* RINT_F80 */ unsupported,
244 /* RINT_F128 */ func_iPTR_i64_i64,
245 /* RINT_PPCF128 */ unsupported,
246 /* NEARBYINT_F32 */ f32_func_f32,
247 /* NEARBYINT_F64 */ f64_func_f64,
248 /* NEARBYINT_F80 */ unsupported,
249 /* NEARBYINT_F128 */ func_iPTR_i64_i64,
250 /* NEARBYINT_PPCF128 */ unsupported,
251 /* ROUND_F32 */ f32_func_f32,
252 /* ROUND_F64 */ f64_func_f64,
253 /* ROUND_F80 */ unsupported,
254 /* ROUND_F128 */ func_iPTR_i64_i64,
255 /* ROUND_PPCF128 */ unsupported,
256 /* FLOOR_F32 */ f32_func_f32,
257 /* FLOOR_F64 */ f64_func_f64,
258 /* FLOOR_F80 */ unsupported,
259 /* FLOOR_F128 */ func_iPTR_i64_i64,
260 /* FLOOR_PPCF128 */ unsupported,
261 /* COPYSIGN_F32 */ f32_func_f32_f32,
262 /* COPYSIGN_F64 */ f64_func_f64_f64,
263 /* COPYSIGN_F80 */ unsupported,
264 /* COPYSIGN_F128 */ func_iPTR_i64_i64_i64_i64,
265 /* COPYSIGN_PPCF128 */ unsupported,
266 /* FMIN_F32 */ f32_func_f32_f32,
267 /* FMIN_F64 */ f64_func_f64_f64,
268 /* FMIN_F80 */ unsupported,
269 /* FMIN_F128 */ func_iPTR_i64_i64_i64_i64,
270 /* FMIN_PPCF128 */ unsupported,
271 /* FMAX_F32 */ f32_func_f32_f32,
272 /* FMAX_F64 */ f64_func_f64_f64,
273 /* FMAX_F80 */ unsupported,
274 /* FMAX_F128 */ func_iPTR_i64_i64_i64_i64,
275 /* FMAX_PPCF128 */ unsupported,
276 
277 // CONVERSION
278 /* FPEXT_F32_PPCF128 */ unsupported,
279 /* FPEXT_F64_PPCF128 */ unsupported,
280 /* FPEXT_F64_F128 */ func_iPTR_f64,
281 /* FPEXT_F32_F128 */ func_iPTR_f32,
282 /* FPEXT_F32_F64 */ f64_func_f32,
283 /* FPEXT_F16_F32 */ f32_func_i16,
284 /* FPROUND_F32_F16 */ i16_func_f32,
285 /* FPROUND_F64_F16 */ unsupported,
286 /* FPROUND_F80_F16 */ unsupported,
287 /* FPROUND_F128_F16 */ unsupported,
288 /* FPROUND_PPCF128_F16 */ unsupported,
289 /* FPROUND_F64_F32 */ f32_func_f64,
290 /* FPROUND_F80_F32 */ unsupported,
291 /* FPROUND_F128_F32 */ f32_func_i64_i64,
292 /* FPROUND_PPCF128_F32 */ unsupported,
293 /* FPROUND_F80_F64 */ unsupported,
294 /* FPROUND_F128_F64 */ f64_func_i64_i64,
295 /* FPROUND_PPCF128_F64 */ unsupported,
296 /* FPTOSINT_F32_I32 */ i32_func_f32,
297 /* FPTOSINT_F32_I64 */ i64_func_f32,
298 /* FPTOSINT_F32_I128 */ i64_i64_func_f32,
299 /* FPTOSINT_F64_I32 */ i32_func_f64,
300 /* FPTOSINT_F64_I64 */ i64_func_f64,
301 /* FPTOSINT_F64_I128 */ i64_i64_func_f64,
302 /* FPTOSINT_F80_I32 */ unsupported,
303 /* FPTOSINT_F80_I64 */ unsupported,
304 /* FPTOSINT_F80_I128 */ unsupported,
305 /* FPTOSINT_F128_I32 */ i32_func_i64_i64,
306 /* FPTOSINT_F128_I64 */ i64_func_i64_i64,
307 /* FPTOSINT_F128_I128 */ i64_i64_func_i64_i64,
308 /* FPTOSINT_PPCF128_I32 */ unsupported,
309 /* FPTOSINT_PPCF128_I64 */ unsupported,
310 /* FPTOSINT_PPCF128_I128 */ unsupported,
311 /* FPTOUINT_F32_I32 */ i32_func_f32,
312 /* FPTOUINT_F32_I64 */ i64_func_f32,
313 /* FPTOUINT_F32_I128 */ i64_i64_func_f32,
314 /* FPTOUINT_F64_I32 */ i32_func_f64,
315 /* FPTOUINT_F64_I64 */ i64_func_f64,
316 /* FPTOUINT_F64_I128 */ i64_i64_func_f64,
317 /* FPTOUINT_F80_I32 */ unsupported,
318 /* FPTOUINT_F80_I64 */ unsupported,
319 /* FPTOUINT_F80_I128 */ unsupported,
320 /* FPTOUINT_F128_I32 */ i32_func_i64_i64,
321 /* FPTOUINT_F128_I64 */ i64_func_i64_i64,
322 /* FPTOUINT_F128_I128 */ i64_i64_func_i64_i64,
323 /* FPTOUINT_PPCF128_I32 */ unsupported,
324 /* FPTOUINT_PPCF128_I64 */ unsupported,
325 /* FPTOUINT_PPCF128_I128 */ unsupported,
326 /* SINTTOFP_I32_F32 */ f32_func_i32,
327 /* SINTTOFP_I32_F64 */ f64_func_i32,
328 /* SINTTOFP_I32_F80 */ unsupported,
329 /* SINTTOFP_I32_F128 */ func_iPTR_i32,
330 /* SINTTOFP_I32_PPCF128 */ unsupported,
331 /* SINTTOFP_I64_F32 */ f32_func_i64,
332 /* SINTTOFP_I64_F64 */ f64_func_i64,
333 /* SINTTOFP_I64_F80 */ unsupported,
334 /* SINTTOFP_I64_F128 */ func_iPTR_i64,
335 /* SINTTOFP_I64_PPCF128 */ unsupported,
336 /* SINTTOFP_I128_F32 */ f32_func_i64_i64,
337 /* SINTTOFP_I128_F64 */ f64_func_i64_i64,
338 /* SINTTOFP_I128_F80 */ unsupported,
339 /* SINTTOFP_I128_F128 */ func_iPTR_i64_i64,
340 /* SINTTOFP_I128_PPCF128 */ unsupported,
341 /* UINTTOFP_I32_F32 */ f32_func_i32,
342 /* UINTTOFP_I32_F64 */ f64_func_i64,
343 /* UINTTOFP_I32_F80 */ unsupported,
344 /* UINTTOFP_I32_F128 */ func_iPTR_i32,
345 /* UINTTOFP_I32_PPCF128 */ unsupported,
346 /* UINTTOFP_I64_F32 */ f32_func_i64,
347 /* UINTTOFP_I64_F64 */ f64_func_i64,
348 /* UINTTOFP_I64_F80 */ unsupported,
349 /* UINTTOFP_I64_F128 */ func_iPTR_i64,
350 /* UINTTOFP_I64_PPCF128 */ unsupported,
351 /* UINTTOFP_I128_F32 */ f32_func_i64_i64,
352 /* UINTTOFP_I128_F64 */ f64_func_i64_i64,
353 /* UINTTOFP_I128_F80 */ unsupported,
354 /* UINTTOFP_I128_F128 */ func_iPTR_i64_i64,
355 /* UINTTOFP_I128_PPCF128 */ unsupported,
356 
357 // COMPARISON
358 /* OEQ_F32 */ i32_func_f32_f32,
359 /* OEQ_F64 */ i32_func_f64_f64,
360 /* OEQ_F128 */ i32_func_i64_i64_i64_i64,
361 /* OEQ_PPCF128 */ unsupported,
362 /* UNE_F32 */ i32_func_f32_f32,
363 /* UNE_F64 */ i32_func_f64_f64,
364 /* UNE_F128 */ i32_func_i64_i64_i64_i64,
365 /* UNE_PPCF128 */ unsupported,
366 /* OGE_F32 */ i32_func_f32_f32,
367 /* OGE_F64 */ i32_func_f64_f64,
368 /* OGE_F128 */ i32_func_i64_i64_i64_i64,
369 /* OGE_PPCF128 */ unsupported,
370 /* OLT_F32 */ i32_func_f32_f32,
371 /* OLT_F64 */ i32_func_f64_f64,
372 /* OLT_F128 */ i32_func_i64_i64_i64_i64,
373 /* OLT_PPCF128 */ unsupported,
374 /* OLE_F32 */ i32_func_f32_f32,
375 /* OLE_F64 */ i32_func_f64_f64,
376 /* OLE_F128 */ i32_func_i64_i64_i64_i64,
377 /* OLE_PPCF128 */ unsupported,
378 /* OGT_F32 */ i32_func_f32_f32,
379 /* OGT_F64 */ i32_func_f64_f64,
380 /* OGT_F128 */ i32_func_i64_i64_i64_i64,
381 /* OGT_PPCF128 */ unsupported,
382 /* UO_F32 */ i32_func_f32_f32,
383 /* UO_F64 */ i32_func_f64_f64,
384 /* UO_F128 */ i32_func_i64_i64_i64_i64,
385 /* UO_PPCF128 */ unsupported,
386 /* O_F32 */ i32_func_f32_f32,
387 /* O_F64 */ i32_func_f64_f64,
388 /* O_F128 */ i32_func_i64_i64_i64_i64,
389 /* O_PPCF128 */ unsupported,
390 
391 // MEMORY
392 /* MEMCPY */ iPTR_func_iPTR_iPTR_iPTR,
393 /* MEMSET */ iPTR_func_iPTR_i32_iPTR,
394 /* MEMMOVE */ iPTR_func_iPTR_iPTR_iPTR,
395 
396 // ELEMENT-WISE ATOMIC MEMORY
397 /* MEMCPY_ELEMENT_UNORDERED_ATOMIC_1 */ unsupported,
398 /* MEMCPY_ELEMENT_UNORDERED_ATOMIC_2 */ unsupported,
399 /* MEMCPY_ELEMENT_UNORDERED_ATOMIC_4 */ unsupported,
400 /* MEMCPY_ELEMENT_UNORDERED_ATOMIC_8 */ unsupported,
401 /* MEMCPY_ELEMENT_UNORDERED_ATOMIC_16 */ unsupported,
402 /* MEMMOVE_ELEMENT_UNORDERED_ATOMIC_1 */ unsupported,
403 /* MEMMOVE_ELEMENT_UNORDERED_ATOMIC_2 */ unsupported,
404 /* MEMMOVE_ELEMENT_UNORDERED_ATOMIC_4 */ unsupported,
405 /* MEMMOVE_ELEMENT_UNORDERED_ATOMIC_8 */ unsupported,
406 /* MEMMOVE_ELEMENT_UNORDERED_ATOMIC_16 */ unsupported,
407 
408 /* MEMSET_ELEMENT_UNORDERED_ATOMIC_1 */ unsupported,
409 /* MEMSET_ELEMENT_UNORDERED_ATOMIC_2 */ unsupported,
410 /* MEMSET_ELEMENT_UNORDERED_ATOMIC_4 */ unsupported,
411 /* MEMSET_ELEMENT_UNORDERED_ATOMIC_8 */ unsupported,
412 /* MEMSET_ELEMENT_UNORDERED_ATOMIC_16 */ unsupported,
413 
414 // EXCEPTION HANDLING
415 /* UNWIND_RESUME */ unsupported,
416 
417 // Note: there's two sets of atomics libcalls; see
418 // <http://llvm.org/docs/Atomics.html> for more info on the
419 // difference between them.
420 
421 // Atomic '__sync_*' libcalls.
422 /* SYNC_VAL_COMPARE_AND_SWAP_1 */ unsupported,
423 /* SYNC_VAL_COMPARE_AND_SWAP_2 */ unsupported,
424 /* SYNC_VAL_COMPARE_AND_SWAP_4 */ unsupported,
425 /* SYNC_VAL_COMPARE_AND_SWAP_8 */ unsupported,
426 /* SYNC_VAL_COMPARE_AND_SWAP_16 */ unsupported,
427 /* SYNC_LOCK_TEST_AND_SET_1 */ unsupported,
428 /* SYNC_LOCK_TEST_AND_SET_2 */ unsupported,
429 /* SYNC_LOCK_TEST_AND_SET_4 */ unsupported,
430 /* SYNC_LOCK_TEST_AND_SET_8 */ unsupported,
431 /* SYNC_LOCK_TEST_AND_SET_16 */ unsupported,
432 /* SYNC_FETCH_AND_ADD_1 */ unsupported,
433 /* SYNC_FETCH_AND_ADD_2 */ unsupported,
434 /* SYNC_FETCH_AND_ADD_4 */ unsupported,
435 /* SYNC_FETCH_AND_ADD_8 */ unsupported,
436 /* SYNC_FETCH_AND_ADD_16 */ unsupported,
437 /* SYNC_FETCH_AND_SUB_1 */ unsupported,
438 /* SYNC_FETCH_AND_SUB_2 */ unsupported,
439 /* SYNC_FETCH_AND_SUB_4 */ unsupported,
440 /* SYNC_FETCH_AND_SUB_8 */ unsupported,
441 /* SYNC_FETCH_AND_SUB_16 */ unsupported,
442 /* SYNC_FETCH_AND_AND_1 */ unsupported,
443 /* SYNC_FETCH_AND_AND_2 */ unsupported,
444 /* SYNC_FETCH_AND_AND_4 */ unsupported,
445 /* SYNC_FETCH_AND_AND_8 */ unsupported,
446 /* SYNC_FETCH_AND_AND_16 */ unsupported,
447 /* SYNC_FETCH_AND_OR_1 */ unsupported,
448 /* SYNC_FETCH_AND_OR_2 */ unsupported,
449 /* SYNC_FETCH_AND_OR_4 */ unsupported,
450 /* SYNC_FETCH_AND_OR_8 */ unsupported,
451 /* SYNC_FETCH_AND_OR_16 */ unsupported,
452 /* SYNC_FETCH_AND_XOR_1 */ unsupported,
453 /* SYNC_FETCH_AND_XOR_2 */ unsupported,
454 /* SYNC_FETCH_AND_XOR_4 */ unsupported,
455 /* SYNC_FETCH_AND_XOR_8 */ unsupported,
456 /* SYNC_FETCH_AND_XOR_16 */ unsupported,
457 /* SYNC_FETCH_AND_NAND_1 */ unsupported,
458 /* SYNC_FETCH_AND_NAND_2 */ unsupported,
459 /* SYNC_FETCH_AND_NAND_4 */ unsupported,
460 /* SYNC_FETCH_AND_NAND_8 */ unsupported,
461 /* SYNC_FETCH_AND_NAND_16 */ unsupported,
462 /* SYNC_FETCH_AND_MAX_1 */ unsupported,
463 /* SYNC_FETCH_AND_MAX_2 */ unsupported,
464 /* SYNC_FETCH_AND_MAX_4 */ unsupported,
465 /* SYNC_FETCH_AND_MAX_8 */ unsupported,
466 /* SYNC_FETCH_AND_MAX_16 */ unsupported,
467 /* SYNC_FETCH_AND_UMAX_1 */ unsupported,
468 /* SYNC_FETCH_AND_UMAX_2 */ unsupported,
469 /* SYNC_FETCH_AND_UMAX_4 */ unsupported,
470 /* SYNC_FETCH_AND_UMAX_8 */ unsupported,
471 /* SYNC_FETCH_AND_UMAX_16 */ unsupported,
472 /* SYNC_FETCH_AND_MIN_1 */ unsupported,
473 /* SYNC_FETCH_AND_MIN_2 */ unsupported,
474 /* SYNC_FETCH_AND_MIN_4 */ unsupported,
475 /* SYNC_FETCH_AND_MIN_8 */ unsupported,
476 /* SYNC_FETCH_AND_MIN_16 */ unsupported,
477 /* SYNC_FETCH_AND_UMIN_1 */ unsupported,
478 /* SYNC_FETCH_AND_UMIN_2 */ unsupported,
479 /* SYNC_FETCH_AND_UMIN_4 */ unsupported,
480 /* SYNC_FETCH_AND_UMIN_8 */ unsupported,
481 /* SYNC_FETCH_AND_UMIN_16 */ unsupported,
482 
483 // Atomic '__atomic_*' libcalls.
484 /* ATOMIC_LOAD */ unsupported,
485 /* ATOMIC_LOAD_1 */ unsupported,
486 /* ATOMIC_LOAD_2 */ unsupported,
487 /* ATOMIC_LOAD_4 */ unsupported,
488 /* ATOMIC_LOAD_8 */ unsupported,
489 /* ATOMIC_LOAD_16 */ unsupported,
490 
491 /* ATOMIC_STORE */ unsupported,
492 /* ATOMIC_STORE_1 */ unsupported,
493 /* ATOMIC_STORE_2 */ unsupported,
494 /* ATOMIC_STORE_4 */ unsupported,
495 /* ATOMIC_STORE_8 */ unsupported,
496 /* ATOMIC_STORE_16 */ unsupported,
497 
498 /* ATOMIC_EXCHANGE */ unsupported,
499 /* ATOMIC_EXCHANGE_1 */ unsupported,
500 /* ATOMIC_EXCHANGE_2 */ unsupported,
501 /* ATOMIC_EXCHANGE_4 */ unsupported,
502 /* ATOMIC_EXCHANGE_8 */ unsupported,
503 /* ATOMIC_EXCHANGE_16 */ unsupported,
504 
505 /* ATOMIC_COMPARE_EXCHANGE */ unsupported,
506 /* ATOMIC_COMPARE_EXCHANGE_1 */ unsupported,
507 /* ATOMIC_COMPARE_EXCHANGE_2 */ unsupported,
508 /* ATOMIC_COMPARE_EXCHANGE_4 */ unsupported,
509 /* ATOMIC_COMPARE_EXCHANGE_8 */ unsupported,
510 /* ATOMIC_COMPARE_EXCHANGE_16 */ unsupported,
511 
512 /* ATOMIC_FETCH_ADD_1 */ unsupported,
513 /* ATOMIC_FETCH_ADD_2 */ unsupported,
514 /* ATOMIC_FETCH_ADD_4 */ unsupported,
515 /* ATOMIC_FETCH_ADD_8 */ unsupported,
516 /* ATOMIC_FETCH_ADD_16 */ unsupported,
517 
518 /* ATOMIC_FETCH_SUB_1 */ unsupported,
519 /* ATOMIC_FETCH_SUB_2 */ unsupported,
520 /* ATOMIC_FETCH_SUB_4 */ unsupported,
521 /* ATOMIC_FETCH_SUB_8 */ unsupported,
522 /* ATOMIC_FETCH_SUB_16 */ unsupported,
523 
524 /* ATOMIC_FETCH_AND_1 */ unsupported,
525 /* ATOMIC_FETCH_AND_2 */ unsupported,
526 /* ATOMIC_FETCH_AND_4 */ unsupported,
527 /* ATOMIC_FETCH_AND_8 */ unsupported,
528 /* ATOMIC_FETCH_AND_16 */ unsupported,
529 
530 /* ATOMIC_FETCH_OR_1 */ unsupported,
531 /* ATOMIC_FETCH_OR_2 */ unsupported,
532 /* ATOMIC_FETCH_OR_4 */ unsupported,
533 /* ATOMIC_FETCH_OR_8 */ unsupported,
534 /* ATOMIC_FETCH_OR_16 */ unsupported,
535 
536 /* ATOMIC_FETCH_XOR_1 */ unsupported,
537 /* ATOMIC_FETCH_XOR_2 */ unsupported,
538 /* ATOMIC_FETCH_XOR_4 */ unsupported,
539 /* ATOMIC_FETCH_XOR_8 */ unsupported,
540 /* ATOMIC_FETCH_XOR_16 */ unsupported,
541 
542 /* ATOMIC_FETCH_NAND_1 */ unsupported,
543 /* ATOMIC_FETCH_NAND_2 */ unsupported,
544 /* ATOMIC_FETCH_NAND_4 */ unsupported,
545 /* ATOMIC_FETCH_NAND_8 */ unsupported,
546 /* ATOMIC_FETCH_NAND_16 */ unsupported,
547 
548 // Stack Protector Fail.
549 /* STACKPROTECTOR_CHECK_FAIL */ func,
550 
551 // Deoptimization.
552 /* DEOPTIMIZE */ unsupported,
553 
554 };
555 
556 static const char *
557 RuntimeLibcallNames[RTLIB::UNKNOWN_LIBCALL] = {
558 /* SHL_I16 */ "__ashlhi3",
559 /* SHL_I32 */ "__ashlsi3",
560 /* SHL_I64 */ "__ashldi3",
561 /* SHL_I128 */ "__ashlti3",
562 /* SRL_I16 */ "__lshrhi3",
563 /* SRL_I32 */ "__lshrsi3",
564 /* SRL_I64 */ "__lshrdi3",
565 /* SRL_I128 */ "__lshrti3",
566 /* SRA_I16 */ "__ashrhi3",
567 /* SRA_I32 */ "__ashrsi3",
568 /* SRA_I64 */ "__ashrdi3",
569 /* SRA_I128 */ "__ashrti3",
570 /* MUL_I8 */ "__mulqi3",
571 /* MUL_I16 */ "__mulhi3",
572 /* MUL_I32 */ "__mulsi3",
573 /* MUL_I64 */ "__muldi3",
574 /* MUL_I128 */ "__multi3",
575 /* MULO_I32 */ "__mulosi4",
576 /* MULO_I64 */ "__mulodi4",
577 /* MULO_I128 */ "__muloti4",
578 /* SDIV_I8 */ "__divqi3",
579 /* SDIV_I16 */ "__divhi3",
580 /* SDIV_I32 */ "__divsi3",
581 /* SDIV_I64 */ "__divdi3",
582 /* SDIV_I128 */ "__divti3",
583 /* UDIV_I8 */ "__udivqi3",
584 /* UDIV_I16 */ "__udivhi3",
585 /* UDIV_I32 */ "__udivsi3",
586 /* UDIV_I64 */ "__udivdi3",
587 /* UDIV_I128 */ "__udivti3",
588 /* SREM_I8 */ "__modqi3",
589 /* SREM_I16 */ "__modhi3",
590 /* SREM_I32 */ "__modsi3",
591 /* SREM_I64 */ "__moddi3",
592 /* SREM_I128 */ "__modti3",
593 /* UREM_I8 */ "__umodqi3",
594 /* UREM_I16 */ "__umodhi3",
595 /* UREM_I32 */ "__umodsi3",
596 /* UREM_I64 */ "__umoddi3",
597 /* UREM_I128 */ "__umodti3",
598 /* SDIVREM_I8 */ nullptr,
599 /* SDIVREM_I16 */ nullptr,
600 /* SDIVREM_I32 */ nullptr,
601 /* SDIVREM_I64 */ nullptr,
602 /* SDIVREM_I128 */ nullptr,
603 /* UDIVREM_I8 */ nullptr,
604 /* UDIVREM_I16 */ nullptr,
605 /* UDIVREM_I32 */ nullptr,
606 /* UDIVREM_I64 */ nullptr,
607 /* UDIVREM_I128 */ nullptr,
608 /* NEG_I32 */ "__negsi2",
609 /* NEG_I64 */ "__negdi2",
610 /* ADD_F32 */ "__addsf3",
611 /* ADD_F64 */ "__adddf3",
612 /* ADD_F80 */ nullptr,
613 /* ADD_F128 */ "__addtf3",
614 /* ADD_PPCF128 */ nullptr,
615 /* SUB_F32 */ "__subsf3",
616 /* SUB_F64 */ "__subdf3",
617 /* SUB_F80 */ nullptr,
618 /* SUB_F128 */ "__subtf3",
619 /* SUB_PPCF128 */ nullptr,
620 /* MUL_F32 */ "__mulsf3",
621 /* MUL_F64 */ "__muldf3",
622 /* MUL_F80 */ nullptr,
623 /* MUL_F128 */ "__multf3",
624 /* MUL_PPCF128 */ nullptr,
625 /* DIV_F32 */ "__divsf3",
626 /* DIV_F64 */ "__divdf3",
627 /* DIV_F80 */ nullptr,
628 /* DIV_F128 */ "__divtf3",
629 /* DIV_PPCF128 */ nullptr,
630 /* REM_F32 */ "fmodf",
631 /* REM_F64 */ "fmod",
632 /* REM_F80 */ nullptr,
633 /* REM_F128 */ "fmodl",
634 /* REM_PPCF128 */ nullptr,
635 /* FMA_F32 */ "fmaf",
636 /* FMA_F64 */ "fma",
637 /* FMA_F80 */ nullptr,
638 /* FMA_F128 */ "fmal",
639 /* FMA_PPCF128 */ nullptr,
640 /* POWI_F32 */ "__powisf2",
641 /* POWI_F64 */ "__powidf2",
642 /* POWI_F80 */ nullptr,
643 /* POWI_F128 */ "__powitf2",
644 /* POWI_PPCF128 */ nullptr,
645 /* SQRT_F32 */ "sqrtf",
646 /* SQRT_F64 */ "sqrt",
647 /* SQRT_F80 */ nullptr,
648 /* SQRT_F128 */ "sqrtl",
649 /* SQRT_PPCF128 */ nullptr,
650 /* LOG_F32 */ "logf",
651 /* LOG_F64 */ "log",
652 /* LOG_F80 */ nullptr,
653 /* LOG_F128 */ "logl",
654 /* LOG_PPCF128 */ nullptr,
655 /* LOG2_F32 */ "log2f",
656 /* LOG2_F64 */ "log2",
657 /* LOG2_F80 */ nullptr,
658 /* LOG2_F128 */ "log2l",
659 /* LOG2_PPCF128 */ nullptr,
660 /* LOG10_F32 */ "log10f",
661 /* LOG10_F64 */ "log10",
662 /* LOG10_F80 */ nullptr,
663 /* LOG10_F128 */ "log10l",
664 /* LOG10_PPCF128 */ nullptr,
665 /* EXP_F32 */ "expf",
666 /* EXP_F64 */ "exp",
667 /* EXP_F80 */ nullptr,
668 /* EXP_F128 */ "expl",
669 /* EXP_PPCF128 */ nullptr,
670 /* EXP2_F32 */ "exp2f",
671 /* EXP2_F64 */ "exp2",
672 /* EXP2_F80 */ nullptr,
673 /* EXP2_F128 */ "exp2l",
674 /* EXP2_PPCF128 */ nullptr,
675 /* SIN_F32 */ "sinf",
676 /* SIN_F64 */ "sin",
677 /* SIN_F80 */ nullptr,
678 /* SIN_F128 */ "sinl",
679 /* SIN_PPCF128 */ nullptr,
680 /* COS_F32 */ "cosf",
681 /* COS_F64 */ "cos",
682 /* COS_F80 */ nullptr,
683 /* COS_F128 */ "cosl",
684 /* COS_PPCF128 */ nullptr,
685 /* SINCOS_F32 */ "sincosf",
686 /* SINCOS_F64 */ "sincos",
687 /* SINCOS_F80 */ nullptr,
688 /* SINCOS_F128 */ "sincosl",
689 /* SINCOS_PPCF128 */ nullptr,
690 /* POW_F32 */ "powf",
691 /* POW_F64 */ "pow",
692 /* POW_F80 */ nullptr,
693 /* POW_F128 */ "powl",
694 /* POW_PPCF128 */ nullptr,
695 /* CEIL_F32 */ "ceilf",
696 /* CEIL_F64 */ "ceil",
697 /* CEIL_F80 */ nullptr,
698 /* CEIL_F128 */ "ceill",
699 /* CEIL_PPCF128 */ nullptr,
700 /* TRUNC_F32 */ "truncf",
701 /* TRUNC_F64 */ "trunc",
702 /* TRUNC_F80 */ nullptr,
703 /* TRUNC_F128 */ "truncl",
704 /* TRUNC_PPCF128 */ nullptr,
705 /* RINT_F32 */ "rintf",
706 /* RINT_F64 */ "rint",
707 /* RINT_F80 */ nullptr,
708 /* RINT_F128 */ "rintl",
709 /* RINT_PPCF128 */ nullptr,
710 /* NEARBYINT_F32 */ "nearbyintf",
711 /* NEARBYINT_F64 */ "nearbyint",
712 /* NEARBYINT_F80 */ nullptr,
713 /* NEARBYINT_F128 */ "nearbyintl",
714 /* NEARBYINT_PPCF128 */ nullptr,
715 /* ROUND_F32 */ "roundf",
716 /* ROUND_F64 */ "round",
717 /* ROUND_F80 */ nullptr,
718 /* ROUND_F128 */ "roundl",
719 /* ROUND_PPCF128 */ nullptr,
720 /* FLOOR_F32 */ "floorf",
721 /* FLOOR_F64 */ "floor",
722 /* FLOOR_F80 */ nullptr,
723 /* FLOOR_F128 */ "floorl",
724 /* FLOOR_PPCF128 */ nullptr,
725 /* COPYSIGN_F32 */ "copysignf",
726 /* COPYSIGN_F64 */ "copysign",
727 /* COPYSIGN_F80 */ nullptr,
728 /* COPYSIGN_F128 */ "copysignl",
729 /* COPYSIGN_PPCF128 */ nullptr,
730 /* FMIN_F32 */ "fminf",
731 /* FMIN_F64 */ "fmin",
732 /* FMIN_F80 */ nullptr,
733 /* FMIN_F128 */ "fminl",
734 /* FMIN_PPCF128 */ nullptr,
735 /* FMAX_F32 */ "fmaxf",
736 /* FMAX_F64 */ "fmax",
737 /* FMAX_F80 */ nullptr,
738 /* FMAX_F128 */ "fmaxl",
739 /* FMAX_PPCF128 */ nullptr,
740 /* FPEXT_F32_PPCF128 */ nullptr,
741 /* FPEXT_F64_PPCF128 */ nullptr,
742 /* FPEXT_F64_F128 */ "__extenddftf2",
743 /* FPEXT_F32_F128 */ "__extendsftf2",
744 /* FPEXT_F32_F64 */ "__extendsfdf2",
745 /* FPEXT_F16_F32 */ "__gnu_h2f_ieee",
746 /* FPROUND_F32_F16 */ "__gnu_f2h_ieee",
747 /* FPROUND_F64_F16 */ nullptr,
748 /* FPROUND_F80_F16 */ nullptr,
749 /* FPROUND_F128_F16 */ nullptr,
750 /* FPROUND_PPCF128_F16 */ nullptr,
751 /* FPROUND_F64_F32 */ "__truncdfsf2",
752 /* FPROUND_F80_F32 */ "__truncxfsf2",
753 /* FPROUND_F128_F32 */ "__trunctfsf2",
754 /* FPROUND_PPCF128_F32 */ nullptr,
755 /* FPROUND_F80_F64 */ "__truncxfdf2",
756 /* FPROUND_F128_F64 */ "__trunctfdf2",
757 /* FPROUND_PPCF128_F64 */ nullptr,
758 /* FPTOSINT_F32_I32 */ "__fixsfsi",
759 /* FPTOSINT_F32_I64 */ "__fixsfdi",
760 /* FPTOSINT_F32_I128 */ "__fixsfti",
761 /* FPTOSINT_F64_I32 */ "__fixdfsi",
762 /* FPTOSINT_F64_I64 */ "__fixdfdi",
763 /* FPTOSINT_F64_I128 */ "__fixdfti",
764 /* FPTOSINT_F80_I32 */ "__fixxfsi",
765 /* FPTOSINT_F80_I64 */ "__fixxfdi",
766 /* FPTOSINT_F80_I128 */ "__fixxfti",
767 /* FPTOSINT_F128_I32 */ "__fixtfsi",
768 /* FPTOSINT_F128_I64 */ "__fixtfdi",
769 /* FPTOSINT_F128_I128 */ "__fixtfti",
770 /* FPTOSINT_PPCF128_I32 */ nullptr,
771 /* FPTOSINT_PPCF128_I64 */ nullptr,
772 /* FPTOSINT_PPCF128_I128 */ nullptr,
773 /* FPTOUINT_F32_I32 */ "__fixunssfsi",
774 /* FPTOUINT_F32_I64 */ "__fixunssfdi",
775 /* FPTOUINT_F32_I128 */ "__fixunssfti",
776 /* FPTOUINT_F64_I32 */ "__fixunsdfsi",
777 /* FPTOUINT_F64_I64 */ "__fixunsdfdi",
778 /* FPTOUINT_F64_I128 */ "__fixunsdfti",
779 /* FPTOUINT_F80_I32 */ "__fixunsxfsi",
780 /* FPTOUINT_F80_I64 */ "__fixunsxfdi",
781 /* FPTOUINT_F80_I128 */ "__fixunsxfti",
782 /* FPTOUINT_F128_I32 */ "__fixunstfsi",
783 /* FPTOUINT_F128_I64 */ "__fixunstfdi",
784 /* FPTOUINT_F128_I128 */ "__fixunstfti",
785 /* FPTOUINT_PPCF128_I32 */ nullptr,
786 /* FPTOUINT_PPCF128_I64 */ nullptr,
787 /* FPTOUINT_PPCF128_I128 */ nullptr,
788 /* SINTTOFP_I32_F32 */ "__floatsisf",
789 /* SINTTOFP_I32_F64 */ "__floatsidf",
790 /* SINTTOFP_I32_F80 */ nullptr,
791 /* SINTTOFP_I32_F128 */ "__floatsitf",
792 /* SINTTOFP_I32_PPCF128 */ nullptr,
793 /* SINTTOFP_I64_F32 */ "__floatdisf",
794 /* SINTTOFP_I64_F64 */ "__floatdidf",
795 /* SINTTOFP_I64_F80 */ nullptr,
796 /* SINTTOFP_I64_F128 */ "__floatditf",
797 /* SINTTOFP_I64_PPCF128 */ nullptr,
798 /* SINTTOFP_I128_F32 */ "__floattisf",
799 /* SINTTOFP_I128_F64 */ "__floattidf",
800 /* SINTTOFP_I128_F80 */ nullptr,
801 /* SINTTOFP_I128_F128 */ "__floattitf",
802 /* SINTTOFP_I128_PPCF128 */ nullptr,
803 /* UINTTOFP_I32_F32 */ "__floatunsisf",
804 /* UINTTOFP_I32_F64 */ "__floatunsidf",
805 /* UINTTOFP_I32_F80 */ nullptr,
806 /* UINTTOFP_I32_F128 */ "__floatunsitf",
807 /* UINTTOFP_I32_PPCF128 */ nullptr,
808 /* UINTTOFP_I64_F32 */ "__floatundisf",
809 /* UINTTOFP_I64_F64 */ "__floatundidf",
810 /* UINTTOFP_I64_F80 */ nullptr,
811 /* UINTTOFP_I64_F128 */ "__floatunditf",
812 /* UINTTOFP_I64_PPCF128 */ nullptr,
813 /* UINTTOFP_I128_F32 */ "__floatuntisf",
814 /* UINTTOFP_I128_F64 */ "__floatuntidf",
815 /* UINTTOFP_I128_F80 */ nullptr,
816 /* UINTTOFP_I128_F128 */ "__floatuntitf",
817 /* UINTTOFP_I128_PPCF128 */ nullptr,
818 /* OEQ_F32 */ "__eqsf2",
819 /* OEQ_F64 */ "__eqdf2",
820 /* OEQ_F128 */ "__eqtf2",
821 /* OEQ_PPCF128 */ nullptr,
822 /* UNE_F32 */ "__nesf2",
823 /* UNE_F64 */ "__nedf2",
824 /* UNE_F128 */ "__netf2",
825 /* UNE_PPCF128 */ nullptr,
826 /* OGE_F32 */ "__gesf2",
827 /* OGE_F64 */ "__gedf2",
828 /* OGE_F128 */ "__getf2",
829 /* OGE_PPCF128 */ nullptr,
830 /* OLT_F32 */ "__ltsf2",
831 /* OLT_F64 */ "__ltdf2",
832 /* OLT_F128 */ "__lttf2",
833 /* OLT_PPCF128 */ nullptr,
834 /* OLE_F32 */ "__lesf2",
835 /* OLE_F64 */ "__ledf2",
836 /* OLE_F128 */ "__letf2",
837 /* OLE_PPCF128 */ nullptr,
838 /* OGT_F32 */ "__gtsf2",
839 /* OGT_F64 */ "__gtdf2",
840 /* OGT_F128 */ "__gttf2",
841 /* OGT_PPCF128 */ nullptr,
842 /* UO_F32 */ "__unordsf2",
843 /* UO_F64 */ "__unorddf2",
844 /* UO_F128 */ "__unordtf2",
845 /* UO_PPCF128 */ nullptr,
846 /* O_F32 */ "__unordsf2",
847 /* O_F64 */ "__unorddf2",
848 /* O_F128 */ "__unordtf2",
849 /* O_PPCF128 */ nullptr,
850 /* MEMCPY */ "memcpy",
851 /* MEMMOVE */ "memset",
852 /* MEMSET */ "memmove",
853 /* MEMCPY_ELEMENT_UNORDERED_ATOMIC_1 */ nullptr,
854 /* MEMCPY_ELEMENT_UNORDERED_ATOMIC_2 */ nullptr,
855 /* MEMCPY_ELEMENT_UNORDERED_ATOMIC_4 */ nullptr,
856 /* MEMCPY_ELEMENT_UNORDERED_ATOMIC_8 */ nullptr,
857 /* MEMCPY_ELEMENT_UNORDERED_ATOMIC_16 */ nullptr,
858 /* MEMMOVE_ELEMENT_UNORDERED_ATOMIC_1 */ nullptr,
859 /* MEMMOVE_ELEMENT_UNORDERED_ATOMIC_2 */ nullptr,
860 /* MEMMOVE_ELEMENT_UNORDERED_ATOMIC_4 */ nullptr,
861 /* MEMMOVE_ELEMENT_UNORDERED_ATOMIC_8 */ nullptr,
862 /* MEMMOVE_ELEMENT_UNORDERED_ATOMIC_16 */ nullptr,
863 /* MEMSET_ELEMENT_UNORDERED_ATOMIC_1 */ nullptr,
864 /* MEMSET_ELEMENT_UNORDERED_ATOMIC_2 */ nullptr,
865 /* MEMSET_ELEMENT_UNORDERED_ATOMIC_4 */ nullptr,
866 /* MEMSET_ELEMENT_UNORDERED_ATOMIC_8 */ nullptr,
867 /* MEMSET_ELEMENT_UNORDERED_ATOMIC_16 */ nullptr,
868 /* UNWIND_RESUME */ "_Unwind_Resume",
869 /* SYNC_VAL_COMPARE_AND_SWAP_1 */ "__sync_val_compare_and_swap_1",
870 /* SYNC_VAL_COMPARE_AND_SWAP_2 */ "__sync_val_compare_and_swap_2",
871 /* SYNC_VAL_COMPARE_AND_SWAP_4 */ "__sync_val_compare_and_swap_4",
872 /* SYNC_VAL_COMPARE_AND_SWAP_8 */ "__sync_val_compare_and_swap_8",
873 /* SYNC_VAL_COMPARE_AND_SWAP_16 */ "__sync_val_compare_and_swap_16",
874 /* SYNC_LOCK_TEST_AND_SET_1 */ "__sync_lock_test_and_set_1",
875 /* SYNC_LOCK_TEST_AND_SET_2 */ "__sync_lock_test_and_set_2",
876 /* SYNC_LOCK_TEST_AND_SET_4 */ "__sync_lock_test_and_set_4",
877 /* SYNC_LOCK_TEST_AND_SET_8 */ "__sync_lock_test_and_set_8",
878 /* SYNC_LOCK_TEST_AND_SET_16 */ "__sync_lock_test_and_set_16",
879 /* SYNC_FETCH_AND_ADD_1 */ "__sync_fetch_and_add_1",
880 /* SYNC_FETCH_AND_ADD_2 */ "__sync_fetch_and_add_2",
881 /* SYNC_FETCH_AND_ADD_4 */ "__sync_fetch_and_add_4",
882 /* SYNC_FETCH_AND_ADD_8 */ "__sync_fetch_and_add_8",
883 /* SYNC_FETCH_AND_ADD_16 */ "__sync_fetch_and_add_16",
884 /* SYNC_FETCH_AND_SUB_1 */ "__sync_fetch_and_sub_1",
885 /* SYNC_FETCH_AND_SUB_2 */ "__sync_fetch_and_sub_2",
886 /* SYNC_FETCH_AND_SUB_4 */ "__sync_fetch_and_sub_4",
887 /* SYNC_FETCH_AND_SUB_8 */ "__sync_fetch_and_sub_8",
888 /* SYNC_FETCH_AND_SUB_16 */ "__sync_fetch_and_sub_16",
889 /* SYNC_FETCH_AND_AND_1 */ "__sync_fetch_and_and_1",
890 /* SYNC_FETCH_AND_AND_2 */ "__sync_fetch_and_and_2",
891 /* SYNC_FETCH_AND_AND_4 */ "__sync_fetch_and_and_4",
892 /* SYNC_FETCH_AND_AND_8 */ "__sync_fetch_and_and_8",
893 /* SYNC_FETCH_AND_AND_16 */ "__sync_fetch_and_and_16",
894 /* SYNC_FETCH_AND_OR_1 */ "__sync_fetch_and_or_1",
895 /* SYNC_FETCH_AND_OR_2 */ "__sync_fetch_and_or_2",
896 /* SYNC_FETCH_AND_OR_4 */ "__sync_fetch_and_or_4",
897 /* SYNC_FETCH_AND_OR_8 */ "__sync_fetch_and_or_8",
898 /* SYNC_FETCH_AND_OR_16 */ "__sync_fetch_and_or_16",
899 /* SYNC_FETCH_AND_XOR_1 */ "__sync_fetch_and_xor_1",
900 /* SYNC_FETCH_AND_XOR_2 */ "__sync_fetch_and_xor_2",
901 /* SYNC_FETCH_AND_XOR_4 */ "__sync_fetch_and_xor_4",
902 /* SYNC_FETCH_AND_XOR_8 */ "__sync_fetch_and_xor_8",
903 /* SYNC_FETCH_AND_XOR_16 */ "__sync_fetch_and_xor_16",
904 /* SYNC_FETCH_AND_NAND_1 */ "__sync_fetch_and_nand_1",
905 /* SYNC_FETCH_AND_NAND_2 */ "__sync_fetch_and_nand_2",
906 /* SYNC_FETCH_AND_NAND_4 */ "__sync_fetch_and_nand_4",
907 /* SYNC_FETCH_AND_NAND_8 */ "__sync_fetch_and_nand_8",
908 /* SYNC_FETCH_AND_NAND_16 */ "__sync_fetch_and_nand_16",
909 /* SYNC_FETCH_AND_MAX_1 */ "__sync_fetch_and_max_1",
910 /* SYNC_FETCH_AND_MAX_2 */ "__sync_fetch_and_max_2",
911 /* SYNC_FETCH_AND_MAX_4 */ "__sync_fetch_and_max_4",
912 /* SYNC_FETCH_AND_MAX_8 */ "__sync_fetch_and_max_8",
913 /* SYNC_FETCH_AND_MAX_16 */ "__sync_fetch_and_max_16",
914 /* SYNC_FETCH_AND_UMAX_1 */ "__sync_fetch_and_umax_1",
915 /* SYNC_FETCH_AND_UMAX_2 */ "__sync_fetch_and_umax_2",
916 /* SYNC_FETCH_AND_UMAX_4 */ "__sync_fetch_and_umax_4",
917 /* SYNC_FETCH_AND_UMAX_8 */ "__sync_fetch_and_umax_8",
918 /* SYNC_FETCH_AND_UMAX_16 */ "__sync_fetch_and_umax_16",
919 /* SYNC_FETCH_AND_MIN_1 */ "__sync_fetch_and_min_1",
920 /* SYNC_FETCH_AND_MIN_2 */ "__sync_fetch_and_min_2",
921 /* SYNC_FETCH_AND_MIN_4 */ "__sync_fetch_and_min_4",
922 /* SYNC_FETCH_AND_MIN_8 */ "__sync_fetch_and_min_8",
923 /* SYNC_FETCH_AND_MIN_16 */ "__sync_fetch_and_min_16",
924 /* SYNC_FETCH_AND_UMIN_1 */ "__sync_fetch_and_umin_1",
925 /* SYNC_FETCH_AND_UMIN_2 */ "__sync_fetch_and_umin_2",
926 /* SYNC_FETCH_AND_UMIN_4 */ "__sync_fetch_and_umin_4",
927 /* SYNC_FETCH_AND_UMIN_8 */ "__sync_fetch_and_umin_8",
928 /* SYNC_FETCH_AND_UMIN_16 */ "__sync_fetch_and_umin_16",
929 
930 /* ATOMIC_LOAD */ "__atomic_load",
931 /* ATOMIC_LOAD_1 */ "__atomic_load_1",
932 /* ATOMIC_LOAD_2 */ "__atomic_load_2",
933 /* ATOMIC_LOAD_4 */ "__atomic_load_4",
934 /* ATOMIC_LOAD_8 */ "__atomic_load_8",
935 /* ATOMIC_LOAD_16 */ "__atomic_load_16",
936 
937 /* ATOMIC_STORE */ "__atomic_store",
938 /* ATOMIC_STORE_1 */ "__atomic_store_1",
939 /* ATOMIC_STORE_2 */ "__atomic_store_2",
940 /* ATOMIC_STORE_4 */ "__atomic_store_4",
941 /* ATOMIC_STORE_8 */ "__atomic_store_8",
942 /* ATOMIC_STORE_16 */ "__atomic_store_16",
943 
944 /* ATOMIC_EXCHANGE */ "__atomic_exchange",
945 /* ATOMIC_EXCHANGE_1 */ "__atomic_exchange_1",
946 /* ATOMIC_EXCHANGE_2 */ "__atomic_exchange_2",
947 /* ATOMIC_EXCHANGE_4 */ "__atomic_exchange_4",
948 /* ATOMIC_EXCHANGE_8 */ "__atomic_exchange_8",
949 /* ATOMIC_EXCHANGE_16 */ "__atomic_exchange_16",
950 
951 /* ATOMIC_COMPARE_EXCHANGE */ "__atomic_compare_exchange",
952 /* ATOMIC_COMPARE_EXCHANGE_1 */ "__atomic_compare_exchange_1",
953 /* ATOMIC_COMPARE_EXCHANGE_2 */ "__atomic_compare_exchange_2",
954 /* ATOMIC_COMPARE_EXCHANGE_4 */ "__atomic_compare_exchange_4",
955 /* ATOMIC_COMPARE_EXCHANGE_8 */ "__atomic_compare_exchange_8",
956 /* ATOMIC_COMPARE_EXCHANGE_16 */ "__atomic_compare_exchange_16",
957 
958 /* ATOMIC_FETCH_ADD_1 */ "__atomic_fetch_add_1",
959 /* ATOMIC_FETCH_ADD_2 */ "__atomic_fetch_add_2",
960 /* ATOMIC_FETCH_ADD_4 */ "__atomic_fetch_add_4",
961 /* ATOMIC_FETCH_ADD_8 */ "__atomic_fetch_add_8",
962 /* ATOMIC_FETCH_ADD_16 */ "__atomic_fetch_add_16",
963 /* ATOMIC_FETCH_SUB_1 */ "__atomic_fetch_sub_1",
964 /* ATOMIC_FETCH_SUB_2 */ "__atomic_fetch_sub_2",
965 /* ATOMIC_FETCH_SUB_4 */ "__atomic_fetch_sub_4",
966 /* ATOMIC_FETCH_SUB_8 */ "__atomic_fetch_sub_8",
967 /* ATOMIC_FETCH_SUB_16 */ "__atomic_fetch_sub_16",
968 /* ATOMIC_FETCH_AND_1 */ "__atomic_fetch_and_1",
969 /* ATOMIC_FETCH_AND_2 */ "__atomic_fetch_and_2",
970 /* ATOMIC_FETCH_AND_4 */ "__atomic_fetch_and_4",
971 /* ATOMIC_FETCH_AND_8 */ "__atomic_fetch_and_8",
972 /* ATOMIC_FETCH_AND_16 */ "__atomic_fetch_and_16",
973 /* ATOMIC_FETCH_OR_1 */ "__atomic_fetch_or_1",
974 /* ATOMIC_FETCH_OR_2 */ "__atomic_fetch_or_2",
975 /* ATOMIC_FETCH_OR_4 */ "__atomic_fetch_or_4",
976 /* ATOMIC_FETCH_OR_8 */ "__atomic_fetch_or_8",
977 /* ATOMIC_FETCH_OR_16 */ "__atomic_fetch_or_16",
978 /* ATOMIC_FETCH_XOR_1 */ "__atomic_fetch_xor_1",
979 /* ATOMIC_FETCH_XOR_2 */ "__atomic_fetch_xor_2",
980 /* ATOMIC_FETCH_XOR_4 */ "__atomic_fetch_xor_4",
981 /* ATOMIC_FETCH_XOR_8 */ "__atomic_fetch_xor_8",
982 /* ATOMIC_FETCH_XOR_16 */ "__atomic_fetch_xor_16",
983 /* ATOMIC_FETCH_NAND_1 */ "__atomic_fetch_nand_1",
984 /* ATOMIC_FETCH_NAND_2 */ "__atomic_fetch_nand_2",
985 /* ATOMIC_FETCH_NAND_4 */ "__atomic_fetch_nand_4",
986 /* ATOMIC_FETCH_NAND_8 */ "__atomic_fetch_nand_8",
987 /* ATOMIC_FETCH_NAND_16 */ "__atomic_fetch_nand_16",
988 
989 /* STACKPROTECTOR_CHECK_FAIL */ "__stack_chk_fail",
990 
991 /* DEOPTIMIZE */ "__llvm_deoptimize",
992 };
993 
994 void llvm::GetSignature(const WebAssemblySubtarget &Subtarget,
995                         RTLIB::Libcall LC, SmallVectorImpl<wasm::ValType> &Rets,
996                         SmallVectorImpl<wasm::ValType> &Params) {
997   assert(Rets.empty());
998   assert(Params.empty());
999 
1000   WebAssembly::ExprType iPTR = Subtarget.hasAddr64() ?
1001                                WebAssembly::ExprType::I64 :
1002                                WebAssembly::ExprType::I32;
1003 
1004   switch (RuntimeLibcallSignatures[LC]) {
1005   case func:
1006     break;
1007   case f32_func_f32:
1008     Rets.push_back(wasm::ValType::F32);
1009     Params.push_back(wasm::ValType::F32);
1010     break;
1011   case f32_func_f64:
1012     Rets.push_back(wasm::ValType::F32);
1013     Params.push_back(wasm::ValType::F64);
1014     break;
1015   case f32_func_i32:
1016     Rets.push_back(wasm::ValType::F32);
1017     Params.push_back(wasm::ValType::I32);
1018     break;
1019   case f32_func_i64:
1020     Rets.push_back(wasm::ValType::F32);
1021     Params.push_back(wasm::ValType::I64);
1022     break;
1023   case f32_func_i16:
1024     Rets.push_back(wasm::ValType::F32);
1025     Params.push_back(wasm::ValType::I32);
1026     break;
1027   case f64_func_f32:
1028     Rets.push_back(wasm::ValType::F64);
1029     Params.push_back(wasm::ValType::F32);
1030     break;
1031   case f64_func_f64:
1032     Rets.push_back(wasm::ValType::F64);
1033     Params.push_back(wasm::ValType::F64);
1034     break;
1035   case f64_func_i32:
1036     Rets.push_back(wasm::ValType::F64);
1037     Params.push_back(wasm::ValType::I32);
1038     break;
1039   case f64_func_i64:
1040     Rets.push_back(wasm::ValType::F64);
1041     Params.push_back(wasm::ValType::I64);
1042     break;
1043   case i32_func_f32:
1044     Rets.push_back(wasm::ValType::I32);
1045     Params.push_back(wasm::ValType::F32);
1046     break;
1047   case i32_func_f64:
1048     Rets.push_back(wasm::ValType::I32);
1049     Params.push_back(wasm::ValType::F64);
1050     break;
1051   case i32_func_i32:
1052     Rets.push_back(wasm::ValType::I32);
1053     Params.push_back(wasm::ValType::I32);
1054     break;
1055   case i64_func_f32:
1056     Rets.push_back(wasm::ValType::I64);
1057     Params.push_back(wasm::ValType::F32);
1058     break;
1059   case i64_func_f64:
1060     Rets.push_back(wasm::ValType::I64);
1061     Params.push_back(wasm::ValType::F64);
1062     break;
1063   case i64_func_i64:
1064     Rets.push_back(wasm::ValType::I64);
1065     Params.push_back(wasm::ValType::I64);
1066     break;
1067   case f32_func_f32_f32:
1068     Rets.push_back(wasm::ValType::F32);
1069     Params.push_back(wasm::ValType::F32);
1070     Params.push_back(wasm::ValType::F32);
1071     break;
1072   case f32_func_f32_i32:
1073     Rets.push_back(wasm::ValType::F32);
1074     Params.push_back(wasm::ValType::F32);
1075     Params.push_back(wasm::ValType::I32);
1076     break;
1077   case f32_func_i64_i64:
1078     Rets.push_back(wasm::ValType::F32);
1079     Params.push_back(wasm::ValType::I64);
1080     Params.push_back(wasm::ValType::I64);
1081     break;
1082   case f64_func_f64_f64:
1083     Rets.push_back(wasm::ValType::F64);
1084     Params.push_back(wasm::ValType::F64);
1085     Params.push_back(wasm::ValType::F64);
1086     break;
1087   case f64_func_f64_i32:
1088     Rets.push_back(wasm::ValType::F64);
1089     Params.push_back(wasm::ValType::F64);
1090     Params.push_back(wasm::ValType::I32);
1091     break;
1092   case f64_func_i64_i64:
1093     Rets.push_back(wasm::ValType::F64);
1094     Params.push_back(wasm::ValType::I64);
1095     Params.push_back(wasm::ValType::I64);
1096     break;
1097   case i16_func_f32:
1098     Rets.push_back(wasm::ValType::I32);
1099     Params.push_back(wasm::ValType::F32);
1100     break;
1101   case i8_func_i8_i8:
1102     Rets.push_back(wasm::ValType::I32);
1103     Params.push_back(wasm::ValType::I32);
1104     Params.push_back(wasm::ValType::I32);
1105     break;
1106   case func_f32_iPTR_iPTR:
1107     Params.push_back(wasm::ValType::F32);
1108     Params.push_back(wasm::ValType(iPTR));
1109     Params.push_back(wasm::ValType(iPTR));
1110     break;
1111   case func_f64_iPTR_iPTR:
1112     Params.push_back(wasm::ValType::F64);
1113     Params.push_back(wasm::ValType(iPTR));
1114     Params.push_back(wasm::ValType(iPTR));
1115     break;
1116   case i16_func_i16_i16:
1117     Rets.push_back(wasm::ValType::I32);
1118     Params.push_back(wasm::ValType::I32);
1119     Params.push_back(wasm::ValType::I32);
1120     break;
1121   case i32_func_f32_f32:
1122     Rets.push_back(wasm::ValType::I32);
1123     Params.push_back(wasm::ValType::F32);
1124     Params.push_back(wasm::ValType::F32);
1125     break;
1126   case i32_func_f64_f64:
1127     Rets.push_back(wasm::ValType::I32);
1128     Params.push_back(wasm::ValType::F64);
1129     Params.push_back(wasm::ValType::F64);
1130     break;
1131   case i32_func_i32_i32:
1132     Rets.push_back(wasm::ValType::I32);
1133     Params.push_back(wasm::ValType::I32);
1134     Params.push_back(wasm::ValType::I32);
1135     break;
1136   case i64_func_i64_i64:
1137     Rets.push_back(wasm::ValType::I64);
1138     Params.push_back(wasm::ValType::I64);
1139     Params.push_back(wasm::ValType::I64);
1140     break;
1141   case i64_i64_func_f32:
1142 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
1143     Rets.push_back(wasm::ValType::I64);
1144     Rets.push_back(wasm::ValType::I64);
1145 #else
1146     Params.push_back(wasm::ValType(iPTR));
1147 #endif
1148     Params.push_back(wasm::ValType::F32);
1149     break;
1150   case i64_i64_func_f64:
1151 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
1152     Rets.push_back(wasm::ValType::I64);
1153     Rets.push_back(wasm::ValType::I64);
1154 #else
1155     Params.push_back(wasm::ValType(iPTR));
1156 #endif
1157     Params.push_back(wasm::ValType::F64);
1158     break;
1159   case i16_i16_func_i16_i16:
1160 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
1161     Rets.push_back(wasm::ValType::I32);
1162     Rets.push_back(wasm::ValType::I32);
1163 #else
1164     Params.push_back(wasm::ValType(iPTR));
1165 #endif
1166     Params.push_back(wasm::ValType::I32);
1167     Params.push_back(wasm::ValType::I32);
1168     break;
1169   case i32_i32_func_i32_i32:
1170 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
1171     Rets.push_back(wasm::ValType::I32);
1172     Rets.push_back(wasm::ValType::I32);
1173 #else
1174     Params.push_back(wasm::ValType(iPTR));
1175 #endif
1176     Params.push_back(wasm::ValType::I32);
1177     Params.push_back(wasm::ValType::I32);
1178     break;
1179   case i64_i64_func_i64_i64:
1180 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
1181     Rets.push_back(wasm::ValType::I64);
1182     Rets.push_back(wasm::ValType::I64);
1183 #else
1184     Params.push_back(wasm::ValType(iPTR));
1185 #endif
1186     Params.push_back(wasm::ValType::I64);
1187     Params.push_back(wasm::ValType::I64);
1188     break;
1189   case i64_i64_func_i64_i64_i64_i64:
1190 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
1191     Rets.push_back(wasm::ValType::I64);
1192     Rets.push_back(wasm::ValType::I64);
1193 #else
1194     Params.push_back(wasm::ValType(iPTR));
1195 #endif
1196     Params.push_back(wasm::ValType::I64);
1197     Params.push_back(wasm::ValType::I64);
1198     Params.push_back(wasm::ValType::I64);
1199     Params.push_back(wasm::ValType::I64);
1200     break;
1201   case i64_i64_i64_i64_func_i64_i64_i64_i64:
1202 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
1203     Rets.push_back(wasm::ValType::I64);
1204     Rets.push_back(wasm::ValType::I64);
1205     Rets.push_back(wasm::ValType::I64);
1206     Rets.push_back(wasm::ValType::I64);
1207 #else
1208     Params.push_back(wasm::ValType(iPTR));
1209 #endif
1210     Params.push_back(wasm::ValType::I64);
1211     Params.push_back(wasm::ValType::I64);
1212     Params.push_back(wasm::ValType::I64);
1213     Params.push_back(wasm::ValType::I64);
1214     break;
1215   case i64_i64_func_i64_i64_i32:
1216 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
1217     Rets.push_back(wasm::ValType::I64);
1218     Rets.push_back(wasm::ValType::I64);
1219     Rets.push_back(wasm::ValType::I64);
1220     Rets.push_back(wasm::ValType::I64);
1221 #else
1222     Params.push_back(wasm::ValType(iPTR));
1223 #endif
1224     Params.push_back(wasm::ValType::I64);
1225     Params.push_back(wasm::ValType::I64);
1226     Params.push_back(wasm::ValType::I32);
1227     break;
1228   case iPTR_func_iPTR_i32_iPTR:
1229     Rets.push_back(wasm::ValType(iPTR));
1230     Params.push_back(wasm::ValType(iPTR));
1231     Params.push_back(wasm::ValType::I32);
1232     Params.push_back(wasm::ValType(iPTR));
1233     break;
1234   case iPTR_func_iPTR_iPTR_iPTR:
1235     Rets.push_back(wasm::ValType(iPTR));
1236     Params.push_back(wasm::ValType(iPTR));
1237     Params.push_back(wasm::ValType(iPTR));
1238     Params.push_back(wasm::ValType(iPTR));
1239     break;
1240   case f32_func_f32_f32_f32:
1241     Rets.push_back(wasm::ValType::F32);
1242     Params.push_back(wasm::ValType::F32);
1243     Params.push_back(wasm::ValType::F32);
1244     Params.push_back(wasm::ValType::F32);
1245     break;
1246   case f64_func_f64_f64_f64:
1247     Rets.push_back(wasm::ValType::F64);
1248     Params.push_back(wasm::ValType::F64);
1249     Params.push_back(wasm::ValType::F64);
1250     Params.push_back(wasm::ValType::F64);
1251     break;
1252   case func_i64_i64_iPTR_iPTR:
1253     Params.push_back(wasm::ValType::I64);
1254     Params.push_back(wasm::ValType::I64);
1255     Params.push_back(wasm::ValType(iPTR));
1256     Params.push_back(wasm::ValType(iPTR));
1257     break;
1258   case func_iPTR_f32:
1259     Params.push_back(wasm::ValType(iPTR));
1260     Params.push_back(wasm::ValType::F32);
1261     break;
1262   case func_iPTR_f64:
1263     Params.push_back(wasm::ValType(iPTR));
1264     Params.push_back(wasm::ValType::F64);
1265     break;
1266   case func_iPTR_i32:
1267     Params.push_back(wasm::ValType(iPTR));
1268     Params.push_back(wasm::ValType::I32);
1269     break;
1270   case func_iPTR_i64:
1271     Params.push_back(wasm::ValType(iPTR));
1272     Params.push_back(wasm::ValType::I64);
1273     break;
1274   case func_iPTR_i64_i64:
1275     Params.push_back(wasm::ValType(iPTR));
1276     Params.push_back(wasm::ValType::I64);
1277     Params.push_back(wasm::ValType::I64);
1278     break;
1279   case func_iPTR_i64_i64_i64_i64:
1280     Params.push_back(wasm::ValType(iPTR));
1281     Params.push_back(wasm::ValType::I64);
1282     Params.push_back(wasm::ValType::I64);
1283     Params.push_back(wasm::ValType::I64);
1284     Params.push_back(wasm::ValType::I64);
1285     break;
1286   case func_iPTR_i64_i64_i64_i64_i64_i64:
1287     Params.push_back(wasm::ValType(iPTR));
1288     Params.push_back(wasm::ValType::I64);
1289     Params.push_back(wasm::ValType::I64);
1290     Params.push_back(wasm::ValType::I64);
1291     Params.push_back(wasm::ValType::I64);
1292     Params.push_back(wasm::ValType::I64);
1293     Params.push_back(wasm::ValType::I64);
1294     break;
1295   case i32_func_i64_i64:
1296     Rets.push_back(wasm::ValType::I32);
1297     Params.push_back(wasm::ValType::I64);
1298     Params.push_back(wasm::ValType::I64);
1299     break;
1300   case i32_func_i64_i64_i64_i64:
1301     Rets.push_back(wasm::ValType::I32);
1302     Params.push_back(wasm::ValType::I64);
1303     Params.push_back(wasm::ValType::I64);
1304     Params.push_back(wasm::ValType::I64);
1305     Params.push_back(wasm::ValType::I64);
1306     break;
1307   case unsupported:
1308     llvm_unreachable("unsupported runtime library signature");
1309   }
1310 }
1311 
1312 void llvm::GetSignature(const WebAssemblySubtarget &Subtarget, const char *Name,
1313                         SmallVectorImpl<wasm::ValType> &Rets,
1314                         SmallVectorImpl<wasm::ValType> &Params) {
1315   assert(strcmp(RuntimeLibcallNames[RTLIB::DEOPTIMIZE], "__llvm_deoptimize") ==
1316          0);
1317 
1318   for (size_t i = 0, e = RTLIB::UNKNOWN_LIBCALL; i < e; ++i)
1319     if (RuntimeLibcallNames[i] && strcmp(RuntimeLibcallNames[i], Name) == 0)
1320       return GetSignature(Subtarget, RTLIB::Libcall(i), Rets, Params);
1321 
1322   llvm_unreachable("unexpected runtime library name");
1323 }
1324