LLVM  9.0.0svn
WebAssemblyRuntimeLibcallSignatures.cpp
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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 /// 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 
23 #include "WebAssemblySubtarget.h"
26 
27 using namespace llvm;
28 
29 namespace {
30 
32  func,
33  f32_func_f32,
34  f32_func_f64,
35  f32_func_i32,
36  f32_func_i64,
37  f32_func_i16,
38  f64_func_f32,
39  f64_func_f64,
40  f64_func_i32,
41  f64_func_i64,
42  i32_func_f32,
43  i32_func_f64,
44  i32_func_i32,
45  i64_func_f32,
46  i64_func_f64,
47  i64_func_i64,
48  f32_func_f32_f32,
49  f32_func_f32_i32,
50  f32_func_i64_i64,
51  f64_func_f64_f64,
52  f64_func_f64_i32,
53  f64_func_i64_i64,
54  i16_func_f32,
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_f32,
66  i64_i64_func_f64,
67  i16_i16_func_i16_i16,
68  i32_i32_func_i32_i32,
69  i64_i64_func_i64_i64,
70  i64_i64_func_i64_i64_i64_i64,
71  i64_i64_func_i64_i64_i64_i64_iPTR,
72  i64_i64_i64_i64_func_i64_i64_i64_i64,
73  i64_i64_func_i64_i64_i32,
74  iPTR_func_iPTR_i32_iPTR,
75  iPTR_func_iPTR_iPTR_iPTR,
76  f32_func_f32_f32_f32,
77  f64_func_f64_f64_f64,
78  func_i64_i64_iPTR_iPTR,
79  func_iPTR_f32,
80  func_iPTR_f64,
81  func_iPTR_i32,
82  func_iPTR_i64,
83  func_iPTR_i64_i64,
84  func_iPTR_i64_i64_i64_i64,
85  func_iPTR_i64_i64_i64_i64_i64_i64,
86  i32_func_i64_i64,
87  i32_func_i64_i64_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] = func_iPTR_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] = func_iPTR_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] = func_iPTR_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] = func_iPTR_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] = func_iPTR_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] = func_iPTR_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] = func_iPTR_i64_i64_i64_i64;
173  Table[RTLIB::SQRT_F32] = f32_func_f32;
174  Table[RTLIB::SQRT_F64] = f64_func_f64;
175  Table[RTLIB::SQRT_F128] = func_iPTR_i64_i64;
176  Table[RTLIB::LOG_F32] = f32_func_f32;
177  Table[RTLIB::LOG_F64] = f64_func_f64;
178  Table[RTLIB::LOG_F128] = func_iPTR_i64_i64;
179  Table[RTLIB::LOG2_F32] = f32_func_f32;
180  Table[RTLIB::LOG2_F64] = f64_func_f64;
181  Table[RTLIB::LOG2_F128] = func_iPTR_i64_i64;
182  Table[RTLIB::LOG10_F32] = f32_func_f32;
183  Table[RTLIB::LOG10_F64] = f64_func_f64;
184  Table[RTLIB::LOG10_F128] = func_iPTR_i64_i64;
185  Table[RTLIB::EXP_F32] = f32_func_f32;
186  Table[RTLIB::EXP_F64] = f64_func_f64;
187  Table[RTLIB::EXP_F128] = func_iPTR_i64_i64;
188  Table[RTLIB::EXP2_F32] = f32_func_f32;
189  Table[RTLIB::EXP2_F64] = f64_func_f64;
190  Table[RTLIB::EXP2_F128] = func_iPTR_i64_i64;
191  Table[RTLIB::SIN_F32] = f32_func_f32;
192  Table[RTLIB::SIN_F64] = f64_func_f64;
193  Table[RTLIB::SIN_F128] = func_iPTR_i64_i64;
194  Table[RTLIB::COS_F32] = f32_func_f32;
195  Table[RTLIB::COS_F64] = f64_func_f64;
196  Table[RTLIB::COS_F128] = func_iPTR_i64_i64;
197  Table[RTLIB::SINCOS_F32] = func_f32_iPTR_iPTR;
198  Table[RTLIB::SINCOS_F64] = func_f64_iPTR_iPTR;
199  Table[RTLIB::SINCOS_F128] = func_i64_i64_iPTR_iPTR;
200  Table[RTLIB::POW_F32] = f32_func_f32_f32;
201  Table[RTLIB::POW_F64] = f64_func_f64_f64;
202  Table[RTLIB::POW_F128] = func_iPTR_i64_i64_i64_i64;
203  Table[RTLIB::CEIL_F32] = f32_func_f32;
204  Table[RTLIB::CEIL_F64] = f64_func_f64;
205  Table[RTLIB::CEIL_F128] = func_iPTR_i64_i64;
206  Table[RTLIB::TRUNC_F32] = f32_func_f32;
207  Table[RTLIB::TRUNC_F64] = f64_func_f64;
208  Table[RTLIB::TRUNC_F128] = func_iPTR_i64_i64;
209  Table[RTLIB::RINT_F32] = f32_func_f32;
210  Table[RTLIB::RINT_F64] = f64_func_f64;
211  Table[RTLIB::RINT_F128] = func_iPTR_i64_i64;
212  Table[RTLIB::NEARBYINT_F32] = f32_func_f32;
213  Table[RTLIB::NEARBYINT_F64] = f64_func_f64;
214  Table[RTLIB::NEARBYINT_F128] = func_iPTR_i64_i64;
215  Table[RTLIB::ROUND_F32] = f32_func_f32;
216  Table[RTLIB::ROUND_F64] = f64_func_f64;
217  Table[RTLIB::ROUND_F128] = func_iPTR_i64_i64;
218  Table[RTLIB::FLOOR_F32] = f32_func_f32;
219  Table[RTLIB::FLOOR_F64] = f64_func_f64;
220  Table[RTLIB::FLOOR_F128] = func_iPTR_i64_i64;
221  Table[RTLIB::COPYSIGN_F32] = f32_func_f32_f32;
222  Table[RTLIB::COPYSIGN_F64] = f64_func_f64_f64;
223  Table[RTLIB::COPYSIGN_F128] = func_iPTR_i64_i64_i64_i64;
224  Table[RTLIB::FMIN_F32] = f32_func_f32_f32;
225  Table[RTLIB::FMIN_F64] = f64_func_f64_f64;
226  Table[RTLIB::FMIN_F128] = func_iPTR_i64_i64_i64_i64;
227  Table[RTLIB::FMAX_F32] = f32_func_f32_f32;
228  Table[RTLIB::FMAX_F64] = f64_func_f64_f64;
229  Table[RTLIB::FMAX_F128] = func_iPTR_i64_i64_i64_i64;
230 
231  // Conversion
232  // All F80 and PPCF128 routines are unspported.
233  Table[RTLIB::FPEXT_F64_F128] = func_iPTR_f64;
234  Table[RTLIB::FPEXT_F32_F128] = func_iPTR_f32;
235  Table[RTLIB::FPEXT_F32_F64] = f64_func_f32;
236  Table[RTLIB::FPEXT_F16_F32] = f32_func_i16;
237  Table[RTLIB::FPROUND_F32_F16] = i16_func_f32;
238  Table[RTLIB::FPROUND_F64_F32] = f32_func_f64;
239  Table[RTLIB::FPROUND_F128_F32] = f32_func_i64_i64;
240  Table[RTLIB::FPROUND_F128_F64] = f64_func_i64_i64;
241  Table[RTLIB::FPTOSINT_F32_I32] = i32_func_f32;
242  Table[RTLIB::FPTOSINT_F32_I64] = i64_func_f32;
243  Table[RTLIB::FPTOSINT_F32_I128] = i64_i64_func_f32;
244  Table[RTLIB::FPTOSINT_F64_I32] = i32_func_f64;
245  Table[RTLIB::FPTOSINT_F64_I64] = i64_func_f64;
246  Table[RTLIB::FPTOSINT_F64_I128] = i64_i64_func_f64;
247  Table[RTLIB::FPTOSINT_F128_I32] = i32_func_i64_i64;
248  Table[RTLIB::FPTOSINT_F128_I64] = i64_func_i64_i64;
249  Table[RTLIB::FPTOSINT_F128_I128] = i64_i64_func_i64_i64;
250  Table[RTLIB::FPTOUINT_F32_I32] = i32_func_f32;
251  Table[RTLIB::FPTOUINT_F32_I64] = i64_func_f32;
252  Table[RTLIB::FPTOUINT_F32_I128] = i64_i64_func_f32;
253  Table[RTLIB::FPTOUINT_F64_I32] = i32_func_f64;
254  Table[RTLIB::FPTOUINT_F64_I64] = i64_func_f64;
255  Table[RTLIB::FPTOUINT_F64_I128] = i64_i64_func_f64;
256  Table[RTLIB::FPTOUINT_F128_I32] = i32_func_i64_i64;
257  Table[RTLIB::FPTOUINT_F128_I64] = i64_func_i64_i64;
258  Table[RTLIB::FPTOUINT_F128_I128] = i64_i64_func_i64_i64;
259  Table[RTLIB::SINTTOFP_I32_F32] = f32_func_i32;
260  Table[RTLIB::SINTTOFP_I32_F64] = f64_func_i32;
261  Table[RTLIB::SINTTOFP_I32_F128] = func_iPTR_i32;
262  Table[RTLIB::SINTTOFP_I64_F32] = f32_func_i64;
263  Table[RTLIB::SINTTOFP_I64_F64] = f64_func_i64;
264  Table[RTLIB::SINTTOFP_I64_F128] = func_iPTR_i64;
265  Table[RTLIB::SINTTOFP_I128_F32] = f32_func_i64_i64;
266  Table[RTLIB::SINTTOFP_I128_F64] = f64_func_i64_i64;
267  Table[RTLIB::SINTTOFP_I128_F128] = func_iPTR_i64_i64;
268  Table[RTLIB::UINTTOFP_I32_F32] = f32_func_i32;
269  Table[RTLIB::UINTTOFP_I32_F64] = f64_func_i64;
270  Table[RTLIB::UINTTOFP_I32_F128] = func_iPTR_i32;
271  Table[RTLIB::UINTTOFP_I64_F32] = f32_func_i64;
272  Table[RTLIB::UINTTOFP_I64_F64] = f64_func_i64;
273  Table[RTLIB::UINTTOFP_I64_F128] = func_iPTR_i64;
274  Table[RTLIB::UINTTOFP_I128_F32] = f32_func_i64_i64;
275  Table[RTLIB::UINTTOFP_I128_F64] = f64_func_i64_i64;
276  Table[RTLIB::UINTTOFP_I128_F128] = func_iPTR_i64_i64;
277 
278  // Comparison
279  // ALl F80 and PPCF128 routines are unsupported.
280  Table[RTLIB::OEQ_F32] = i32_func_f32_f32;
281  Table[RTLIB::OEQ_F64] = i32_func_f64_f64;
282  Table[RTLIB::OEQ_F128] = i32_func_i64_i64_i64_i64;
283  Table[RTLIB::UNE_F32] = i32_func_f32_f32;
284  Table[RTLIB::UNE_F64] = i32_func_f64_f64;
285  Table[RTLIB::UNE_F128] = i32_func_i64_i64_i64_i64;
286  Table[RTLIB::OGE_F32] = i32_func_f32_f32;
287  Table[RTLIB::OGE_F64] = i32_func_f64_f64;
288  Table[RTLIB::OGE_F128] = i32_func_i64_i64_i64_i64;
289  Table[RTLIB::OLT_F32] = i32_func_f32_f32;
290  Table[RTLIB::OLT_F64] = i32_func_f64_f64;
291  Table[RTLIB::OLT_F128] = i32_func_i64_i64_i64_i64;
292  Table[RTLIB::OLE_F32] = i32_func_f32_f32;
293  Table[RTLIB::OLE_F64] = i32_func_f64_f64;
294  Table[RTLIB::OLE_F128] = i32_func_i64_i64_i64_i64;
295  Table[RTLIB::OGT_F32] = i32_func_f32_f32;
296  Table[RTLIB::OGT_F64] = i32_func_f64_f64;
297  Table[RTLIB::OGT_F128] = i32_func_i64_i64_i64_i64;
298  Table[RTLIB::UO_F32] = i32_func_f32_f32;
299  Table[RTLIB::UO_F64] = i32_func_f64_f64;
300  Table[RTLIB::UO_F128] = i32_func_i64_i64_i64_i64;
301  // O_FXX has the weird property that it uses the same libcall name as UO_FXX
302  // This breaks our name-based lookup. Fortunately only the UO family of
303  // libcalls appears to be actually used.
304  Table[RTLIB::O_F32] = unsupported;
305  Table[RTLIB::O_F64] = unsupported;
306  Table[RTLIB::O_F128] = unsupported;
307 
308  // Memory
309  Table[RTLIB::MEMCPY] = iPTR_func_iPTR_iPTR_iPTR;
310  Table[RTLIB::MEMSET] = iPTR_func_iPTR_i32_iPTR;
311  Table[RTLIB::MEMMOVE] = iPTR_func_iPTR_iPTR_iPTR;
312 
313  // Element-wise Atomic memory
314  // TODO: Fix these when we implement atomic support
315  Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_1] = unsupported;
316  Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_2] = unsupported;
317  Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_4] = unsupported;
318  Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_8] = unsupported;
319  Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_16] = unsupported;
320  Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_1] = unsupported;
321  Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_2] = unsupported;
322  Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_4] = unsupported;
323  Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_8] = unsupported;
324  Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_16] = unsupported;
325 
326  Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_1] = unsupported;
327  Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_2] = unsupported;
328  Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_4] = unsupported;
329  Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_8] = unsupported;
330  Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_16] = unsupported;
331 
332  // Atomic '__sync_*' libcalls.
333  // TODO: Fix these when we implement atomic support
334  Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_1] = unsupported;
335  Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_2] = unsupported;
336  Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_4] = unsupported;
337  Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_8] = unsupported;
338  Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_16] = unsupported;
339  Table[RTLIB::SYNC_LOCK_TEST_AND_SET_1] = unsupported;
340  Table[RTLIB::SYNC_LOCK_TEST_AND_SET_2] = unsupported;
341  Table[RTLIB::SYNC_LOCK_TEST_AND_SET_4] = unsupported;
342  Table[RTLIB::SYNC_LOCK_TEST_AND_SET_8] = unsupported;
343  Table[RTLIB::SYNC_LOCK_TEST_AND_SET_16] = unsupported;
344  Table[RTLIB::SYNC_FETCH_AND_ADD_1] = unsupported;
345  Table[RTLIB::SYNC_FETCH_AND_ADD_2] = unsupported;
346  Table[RTLIB::SYNC_FETCH_AND_ADD_4] = unsupported;
347  Table[RTLIB::SYNC_FETCH_AND_ADD_8] = unsupported;
348  Table[RTLIB::SYNC_FETCH_AND_ADD_16] = unsupported;
349  Table[RTLIB::SYNC_FETCH_AND_SUB_1] = unsupported;
350  Table[RTLIB::SYNC_FETCH_AND_SUB_2] = unsupported;
351  Table[RTLIB::SYNC_FETCH_AND_SUB_4] = unsupported;
352  Table[RTLIB::SYNC_FETCH_AND_SUB_8] = unsupported;
353  Table[RTLIB::SYNC_FETCH_AND_SUB_16] = unsupported;
354  Table[RTLIB::SYNC_FETCH_AND_AND_1] = unsupported;
355  Table[RTLIB::SYNC_FETCH_AND_AND_2] = unsupported;
356  Table[RTLIB::SYNC_FETCH_AND_AND_4] = unsupported;
357  Table[RTLIB::SYNC_FETCH_AND_AND_8] = unsupported;
358  Table[RTLIB::SYNC_FETCH_AND_AND_16] = unsupported;
359  Table[RTLIB::SYNC_FETCH_AND_OR_1] = unsupported;
360  Table[RTLIB::SYNC_FETCH_AND_OR_2] = unsupported;
361  Table[RTLIB::SYNC_FETCH_AND_OR_4] = unsupported;
362  Table[RTLIB::SYNC_FETCH_AND_OR_8] = unsupported;
363  Table[RTLIB::SYNC_FETCH_AND_OR_16] = unsupported;
364  Table[RTLIB::SYNC_FETCH_AND_XOR_1] = unsupported;
365  Table[RTLIB::SYNC_FETCH_AND_XOR_2] = unsupported;
366  Table[RTLIB::SYNC_FETCH_AND_XOR_4] = unsupported;
367  Table[RTLIB::SYNC_FETCH_AND_XOR_8] = unsupported;
368  Table[RTLIB::SYNC_FETCH_AND_XOR_16] = unsupported;
369  Table[RTLIB::SYNC_FETCH_AND_NAND_1] = unsupported;
370  Table[RTLIB::SYNC_FETCH_AND_NAND_2] = unsupported;
371  Table[RTLIB::SYNC_FETCH_AND_NAND_4] = unsupported;
372  Table[RTLIB::SYNC_FETCH_AND_NAND_8] = unsupported;
373  Table[RTLIB::SYNC_FETCH_AND_NAND_16] = unsupported;
374  Table[RTLIB::SYNC_FETCH_AND_MAX_1] = unsupported;
375  Table[RTLIB::SYNC_FETCH_AND_MAX_2] = unsupported;
376  Table[RTLIB::SYNC_FETCH_AND_MAX_4] = unsupported;
377  Table[RTLIB::SYNC_FETCH_AND_MAX_8] = unsupported;
378  Table[RTLIB::SYNC_FETCH_AND_MAX_16] = unsupported;
379  Table[RTLIB::SYNC_FETCH_AND_UMAX_1] = unsupported;
380  Table[RTLIB::SYNC_FETCH_AND_UMAX_2] = unsupported;
381  Table[RTLIB::SYNC_FETCH_AND_UMAX_4] = unsupported;
382  Table[RTLIB::SYNC_FETCH_AND_UMAX_8] = unsupported;
383  Table[RTLIB::SYNC_FETCH_AND_UMAX_16] = unsupported;
384  Table[RTLIB::SYNC_FETCH_AND_MIN_1] = unsupported;
385  Table[RTLIB::SYNC_FETCH_AND_MIN_2] = unsupported;
386  Table[RTLIB::SYNC_FETCH_AND_MIN_4] = unsupported;
387  Table[RTLIB::SYNC_FETCH_AND_MIN_8] = unsupported;
388  Table[RTLIB::SYNC_FETCH_AND_MIN_16] = unsupported;
389  Table[RTLIB::SYNC_FETCH_AND_UMIN_1] = unsupported;
390  Table[RTLIB::SYNC_FETCH_AND_UMIN_2] = unsupported;
391  Table[RTLIB::SYNC_FETCH_AND_UMIN_4] = unsupported;
392  Table[RTLIB::SYNC_FETCH_AND_UMIN_8] = unsupported;
393  Table[RTLIB::SYNC_FETCH_AND_UMIN_16] = unsupported;
394 
395  // Atomic '__atomic_*' libcalls.
396  // TODO: Fix these when we implement atomic support
397  Table[RTLIB::ATOMIC_LOAD] = unsupported;
398  Table[RTLIB::ATOMIC_LOAD_1] = unsupported;
399  Table[RTLIB::ATOMIC_LOAD_2] = unsupported;
400  Table[RTLIB::ATOMIC_LOAD_4] = unsupported;
401  Table[RTLIB::ATOMIC_LOAD_8] = unsupported;
402  Table[RTLIB::ATOMIC_LOAD_16] = unsupported;
403 
404  Table[RTLIB::ATOMIC_STORE] = unsupported;
405  Table[RTLIB::ATOMIC_STORE_1] = unsupported;
406  Table[RTLIB::ATOMIC_STORE_2] = unsupported;
407  Table[RTLIB::ATOMIC_STORE_4] = unsupported;
408  Table[RTLIB::ATOMIC_STORE_8] = unsupported;
409  Table[RTLIB::ATOMIC_STORE_16] = unsupported;
410 
411  Table[RTLIB::ATOMIC_EXCHANGE] = unsupported;
412  Table[RTLIB::ATOMIC_EXCHANGE_1] = unsupported;
413  Table[RTLIB::ATOMIC_EXCHANGE_2] = unsupported;
414  Table[RTLIB::ATOMIC_EXCHANGE_4] = unsupported;
415  Table[RTLIB::ATOMIC_EXCHANGE_8] = unsupported;
416  Table[RTLIB::ATOMIC_EXCHANGE_16] = unsupported;
417 
418  Table[RTLIB::ATOMIC_COMPARE_EXCHANGE] = unsupported;
419  Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_1] = unsupported;
420  Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_2] = unsupported;
421  Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_4] = unsupported;
422  Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_8] = unsupported;
423  Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_16] = unsupported;
424 
425  Table[RTLIB::ATOMIC_FETCH_ADD_1] = unsupported;
426  Table[RTLIB::ATOMIC_FETCH_ADD_2] = unsupported;
427  Table[RTLIB::ATOMIC_FETCH_ADD_4] = unsupported;
428  Table[RTLIB::ATOMIC_FETCH_ADD_8] = unsupported;
429  Table[RTLIB::ATOMIC_FETCH_ADD_16] = unsupported;
430 
431  Table[RTLIB::ATOMIC_FETCH_SUB_1] = unsupported;
432  Table[RTLIB::ATOMIC_FETCH_SUB_2] = unsupported;
433  Table[RTLIB::ATOMIC_FETCH_SUB_4] = unsupported;
434  Table[RTLIB::ATOMIC_FETCH_SUB_8] = unsupported;
435  Table[RTLIB::ATOMIC_FETCH_SUB_16] = unsupported;
436 
437  Table[RTLIB::ATOMIC_FETCH_AND_1] = unsupported;
438  Table[RTLIB::ATOMIC_FETCH_AND_2] = unsupported;
439  Table[RTLIB::ATOMIC_FETCH_AND_4] = unsupported;
440  Table[RTLIB::ATOMIC_FETCH_AND_8] = unsupported;
441  Table[RTLIB::ATOMIC_FETCH_AND_16] = unsupported;
442 
443  Table[RTLIB::ATOMIC_FETCH_OR_1] = unsupported;
444  Table[RTLIB::ATOMIC_FETCH_OR_2] = unsupported;
445  Table[RTLIB::ATOMIC_FETCH_OR_4] = unsupported;
446  Table[RTLIB::ATOMIC_FETCH_OR_8] = unsupported;
447  Table[RTLIB::ATOMIC_FETCH_OR_16] = unsupported;
448 
449  Table[RTLIB::ATOMIC_FETCH_XOR_1] = unsupported;
450  Table[RTLIB::ATOMIC_FETCH_XOR_2] = unsupported;
451  Table[RTLIB::ATOMIC_FETCH_XOR_4] = unsupported;
452  Table[RTLIB::ATOMIC_FETCH_XOR_8] = unsupported;
453  Table[RTLIB::ATOMIC_FETCH_XOR_16] = unsupported;
454 
455  Table[RTLIB::ATOMIC_FETCH_NAND_1] = unsupported;
456  Table[RTLIB::ATOMIC_FETCH_NAND_2] = unsupported;
457  Table[RTLIB::ATOMIC_FETCH_NAND_4] = unsupported;
458  Table[RTLIB::ATOMIC_FETCH_NAND_8] = unsupported;
459  Table[RTLIB::ATOMIC_FETCH_NAND_16] = unsupported;
460  }
461 };
462 
463 ManagedStatic<RuntimeLibcallSignatureTable> RuntimeLibcallSignatures;
464 
465 // Maps libcall names to their RTLIB::Libcall number. Builds the map in a
466 // constructor for use with ManagedStatic
467 struct StaticLibcallNameMap {
469  StaticLibcallNameMap() {
470  static const std::pair<const char *, RTLIB::Libcall> NameLibcalls[] = {
471 #define HANDLE_LIBCALL(code, name) {(const char *)name, RTLIB::code},
472 #include "llvm/IR/RuntimeLibcalls.def"
473 #undef HANDLE_LIBCALL
474  };
475  for (const auto &NameLibcall : NameLibcalls) {
476  if (NameLibcall.first != nullptr &&
477  RuntimeLibcallSignatures->Table[NameLibcall.second] != unsupported) {
478  assert(Map.find(NameLibcall.first) == Map.end() &&
479  "duplicate libcall names in name map");
480  Map[NameLibcall.first] = NameLibcall.second;
481  }
482  }
483  }
484 };
485 
486 } // end anonymous namespace
487 
489  RTLIB::Libcall LC,
492  assert(Rets.empty());
493  assert(Params.empty());
494 
495  wasm::ValType iPTR =
497 
498  auto &Table = RuntimeLibcallSignatures->Table;
499  switch (Table[LC]) {
500  case func:
501  break;
502  case f32_func_f32:
505  break;
506  case f32_func_f64:
509  break;
510  case f32_func_i32:
513  break;
514  case f32_func_i64:
517  break;
518  case f32_func_i16:
521  break;
522  case f64_func_f32:
525  break;
526  case f64_func_f64:
529  break;
530  case f64_func_i32:
533  break;
534  case f64_func_i64:
537  break;
538  case i32_func_f32:
541  break;
542  case i32_func_f64:
545  break;
546  case i32_func_i32:
549  break;
550  case i64_func_f32:
553  break;
554  case i64_func_f64:
557  break;
558  case i64_func_i64:
561  break;
562  case f32_func_f32_f32:
566  break;
567  case f32_func_f32_i32:
571  break;
572  case f32_func_i64_i64:
576  break;
577  case f64_func_f64_f64:
581  break;
582  case f64_func_f64_i32:
586  break;
587  case f64_func_i64_i64:
591  break;
592  case i16_func_f32:
595  break;
596  case i8_func_i8_i8:
600  break;
601  case func_f32_iPTR_iPTR:
603  Params.push_back(iPTR);
604  Params.push_back(iPTR);
605  break;
606  case func_f64_iPTR_iPTR:
608  Params.push_back(iPTR);
609  Params.push_back(iPTR);
610  break;
611  case i16_func_i16_i16:
615  break;
616  case i32_func_f32_f32:
620  break;
621  case i32_func_f64_f64:
625  break;
626  case i32_func_i32_i32:
630  break;
631  case i32_func_i32_i32_iPTR:
635  Params.push_back(iPTR);
636  break;
637  case i64_func_i64_i64:
641  break;
642  case i64_func_i64_i64_iPTR:
646  Params.push_back(iPTR);
647  break;
648  case i64_i64_func_f32:
649 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
652 #else
653  Params.push_back(iPTR);
654 #endif
656  break;
657  case i64_i64_func_f64:
658 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
661 #else
662  Params.push_back(iPTR);
663 #endif
665  break;
666  case i16_i16_func_i16_i16:
667 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
670 #else
671  Params.push_back(iPTR);
672 #endif
675  break;
676  case i32_i32_func_i32_i32:
677 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
680 #else
681  Params.push_back(iPTR);
682 #endif
685  break;
686  case i64_i64_func_i64_i64:
687 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
690 #else
691  Params.push_back(iPTR);
692 #endif
695  break;
696  case i64_i64_func_i64_i64_i64_i64:
697 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
700 #else
701  Params.push_back(iPTR);
702 #endif
707  break;
708  case i64_i64_func_i64_i64_i64_i64_iPTR:
709 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
712 #else
713  Params.push_back(iPTR);
714 #endif
719  Params.push_back(iPTR);
720  break;
721  case i64_i64_i64_i64_func_i64_i64_i64_i64:
722 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
727 #else
728  Params.push_back(iPTR);
729 #endif
734  break;
735  case i64_i64_func_i64_i64_i32:
736 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
741 #else
742  Params.push_back(iPTR);
743 #endif
747  break;
748  case iPTR_func_iPTR_i32_iPTR:
749  Rets.push_back(iPTR);
750  Params.push_back(iPTR);
752  Params.push_back(iPTR);
753  break;
754  case iPTR_func_iPTR_iPTR_iPTR:
755  Rets.push_back(iPTR);
756  Params.push_back(iPTR);
757  Params.push_back(iPTR);
758  Params.push_back(iPTR);
759  break;
760  case f32_func_f32_f32_f32:
765  break;
766  case f64_func_f64_f64_f64:
771  break;
772  case func_i64_i64_iPTR_iPTR:
775  Params.push_back(iPTR);
776  Params.push_back(iPTR);
777  break;
778  case func_iPTR_f32:
779  Params.push_back(iPTR);
781  break;
782  case func_iPTR_f64:
783  Params.push_back(iPTR);
785  break;
786  case func_iPTR_i32:
787  Params.push_back(iPTR);
789  break;
790  case func_iPTR_i64:
791  Params.push_back(iPTR);
793  break;
794  case func_iPTR_i64_i64:
795  Params.push_back(iPTR);
798  break;
799  case func_iPTR_i64_i64_i64_i64:
800  Params.push_back(iPTR);
805  break;
806  case func_iPTR_i64_i64_i64_i64_i64_i64:
807  Params.push_back(iPTR);
814  break;
815  case i32_func_i64_i64:
819  break;
820  case i32_func_i64_i64_i64_i64:
826  break;
827  case unsupported:
828  llvm_unreachable("unsupported runtime library signature");
829  }
830 }
831 
833 // TODO: If the RTLIB::Libcall-taking flavor of GetSignature remains unsed
834 // other than here, just roll its logic into this version.
836  const char *Name,
839  auto &Map = LibcallNameMap->Map;
840  auto val = Map.find(Name);
841  assert(val != Map.end() && "unexpected runtime library name");
842  return GetLibcallSignature(Subtarget, val->second, Rets, Params);
843 }
This class represents lattice values for constants.
Definition: AllocatorList.h:24
void push_back(const T &Elt)
Definition: SmallVector.h:218
Libcall
RTLIB::Libcall enum - This enum defines all of the runtime library calls the backend can emit...
iterator find(StringRef Key)
Definition: StringMap.h:333
amdgpu Simplify well known AMD library false Value Value const Twine & Name
This file provides signature information for runtime libcalls.
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
void GetLibcallSignature(const WebAssemblySubtarget &Subtarget, RTLIB::Libcall LC, SmallVectorImpl< wasm::ValType > &Rets, SmallVectorImpl< wasm::ValType > &Params)
This file declares the WebAssembly-specific subclass of TargetSubtarget.
StringMap - This is an unconventional map that is specialized for handling keys that are "strings"...
Definition: StringMap.h:220
LLVM_NODISCARD bool empty() const
Definition: SmallVector.h:56
static ManagedStatic< StaticLibcallNameMap > LibcallNameMap
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
ManagedStatic - This transparently changes the behavior of global statics to be lazily constructed on...
Definition: ManagedStatic.h:61
OUTCHAIN = ATOMIC_STORE(INCHAIN, ptr, val) This corresponds to "store atomic" instruction.
Definition: ISDOpcodes.h:789
Val, OUTCHAIN = ATOMIC_LOAD(INCHAIN, ptr) This corresponds to "load atomic" instruction.
Definition: ISDOpcodes.h:785
iterator end()
Definition: StringMap.h:318