1 //===-- AMDGPULibFunc.cpp -------------------------------------------------===//
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 // This file contains utility functions to work with Itanium mangled names
10 //
11 //===----------------------------------------------------------------------===//
12
13 #include "AMDGPULibFunc.h"
14 #include "AMDGPU.h"
15 #include "llvm/ADT/StringExtras.h"
16 #include "llvm/ADT/StringMap.h"
17 #include "llvm/ADT/StringSwitch.h"
18 #include "llvm/IR/DerivedTypes.h"
19 #include "llvm/IR/Function.h"
20 #include "llvm/IR/Module.h"
21 #include "llvm/IR/ValueSymbolTable.h"
22 #include "llvm/Support/raw_ostream.h"
23
24 using namespace llvm;
25
26 namespace {
27
28 enum EManglingParam {
29 E_NONE,
30 EX_EVENT,
31 EX_FLOAT4,
32 EX_INTV4,
33 EX_RESERVEDID,
34 EX_SAMPLER,
35 EX_SIZET,
36 EX_UINT,
37 EX_UINTV4,
38 E_ANY,
39 E_CONSTPTR_ANY,
40 E_CONSTPTR_SWAPGL,
41 E_COPY,
42 E_IMAGECOORDS,
43 E_POINTEE,
44 E_SETBASE_I32,
45 E_SETBASE_U32,
46 E_MAKEBASE_UNS,
47 E_V16_OF_POINTEE,
48 E_V2_OF_POINTEE,
49 E_V3_OF_POINTEE,
50 E_V4_OF_POINTEE,
51 E_V8_OF_POINTEE,
52 E_VLTLPTR_ANY,
53 };
54
55 struct ManglingRule {
56 const char *Name;
57 unsigned char Lead[2];
58 unsigned char Param[5];
59
maxLeadIndex__anon07e1ed9f0111::ManglingRule60 int maxLeadIndex() const { return (std::max)(Lead[0], Lead[1]); }
getNumLeads__anon07e1ed9f0111::ManglingRule61 int getNumLeads() const { return (Lead[0] ? 1 : 0) + (Lead[1] ? 1 : 0); }
62
63 unsigned getNumArgs() const;
64
65 static StringMap<int> buildManglingRulesMap();
66 };
67
68 // Information about library functions with unmangled names.
69 class UnmangledFuncInfo {
70 const char *Name;
71 unsigned NumArgs;
72
73 // Table for all lib functions with unmangled names.
74 static const UnmangledFuncInfo Table[];
75
76 // Number of entries in Table.
77 static const unsigned TableSize;
78
79 static StringMap<unsigned> buildNameMap();
80
81 public:
82 using ID = AMDGPULibFunc::EFuncId;
UnmangledFuncInfo(const char * _Name,unsigned _NumArgs)83 constexpr UnmangledFuncInfo(const char *_Name, unsigned _NumArgs)
84 : Name(_Name), NumArgs(_NumArgs) {}
85 // Get index to Table by function name.
86 static bool lookup(StringRef Name, ID &Id);
toIndex(ID Id)87 static unsigned toIndex(ID Id) {
88 assert(static_cast<unsigned>(Id) >
89 static_cast<unsigned>(AMDGPULibFunc::EI_LAST_MANGLED) &&
90 "Invalid unmangled library function");
91 return static_cast<unsigned>(Id) - 1 -
92 static_cast<unsigned>(AMDGPULibFunc::EI_LAST_MANGLED);
93 }
toFuncId(unsigned Index)94 static ID toFuncId(unsigned Index) {
95 assert(Index < TableSize &&
96 "Invalid unmangled library function");
97 return static_cast<ID>(
98 Index + 1 + static_cast<unsigned>(AMDGPULibFunc::EI_LAST_MANGLED));
99 }
getNumArgs(ID Id)100 static unsigned getNumArgs(ID Id) { return Table[toIndex(Id)].NumArgs; }
getName(ID Id)101 static StringRef getName(ID Id) { return Table[toIndex(Id)].Name; }
102 };
103
getNumArgs() const104 unsigned ManglingRule::getNumArgs() const {
105 unsigned I=0;
106 while (I < (sizeof Param/sizeof Param[0]) && Param[I]) ++I;
107 return I;
108 }
109
110 // This table describes function formal argument type rules. The order of rules
111 // corresponds to the EFuncId enum at AMDGPULibFunc.h
112 //
113 // "<func name>", { <leads> }, { <param rules> }
114 // where:
115 // <leads> - list of integers that are one-based indexes of formal argument
116 // used to mangle a function name. Other argument types are derived from types
117 // of these 'leads'. The order of integers in this list correspond to the
118 // order in which these arguments are mangled in the EDG mangling scheme. The
119 // same order should be preserved for arguments in the AMDGPULibFunc structure
120 // when it is used for mangling. For example:
121 // { "vstorea_half", {3,1}, {E_ANY,EX_SIZET,E_ANY}},
122 // will be mangled in EDG scheme as vstorea_half_<3dparam>_<1stparam>
123 // When mangling from code use:
124 // AMDGPULibFunc insc;
125 // insc.param[0] = ... // describe 3rd parameter
126 // insc.param[1] = ... // describe 1rd parameter
127 //
128 // <param rules> - list of rules used to derive all of the function formal
129 // argument types. EX_ prefixed are simple types, other derived from the
130 // latest 'lead' argument type in the order of encoding from first to last.
131 // E_ANY - use prev lead type, E_CONSTPTR_ANY - make const pointer out of
132 // prev lead type, etc. see ParamIterator::getNextParam() for details.
133
134 static constexpr ManglingRule manglingRules[] = {
135 { "", {0}, {0} },
136 { "abs" , {1}, {E_ANY}},
137 { "abs_diff" , {1}, {E_ANY,E_COPY}},
138 { "acos" , {1}, {E_ANY}},
139 { "acosh" , {1}, {E_ANY}},
140 { "acospi" , {1}, {E_ANY}},
141 { "add_sat" , {1}, {E_ANY,E_COPY}},
142 { "all" , {1}, {E_ANY}},
143 { "any" , {1}, {E_ANY}},
144 { "asin" , {1}, {E_ANY}},
145 { "asinh" , {1}, {E_ANY}},
146 { "asinpi" , {1}, {E_ANY}},
147 { "async_work_group_copy" , {1}, {E_ANY,E_CONSTPTR_SWAPGL,EX_SIZET,EX_EVENT}},
148 { "async_work_group_strided_copy" , {1}, {E_ANY,E_CONSTPTR_SWAPGL,EX_SIZET,EX_SIZET,EX_EVENT}},
149 { "atan" , {1}, {E_ANY}},
150 { "atan2" , {1}, {E_ANY,E_COPY}},
151 { "atan2pi" , {1}, {E_ANY,E_COPY}},
152 { "atanh" , {1}, {E_ANY}},
153 { "atanpi" , {1}, {E_ANY}},
154 { "atomic_add" , {1}, {E_VLTLPTR_ANY,E_POINTEE}},
155 { "atomic_and" , {1}, {E_VLTLPTR_ANY,E_POINTEE}},
156 { "atomic_cmpxchg" , {1}, {E_VLTLPTR_ANY,E_POINTEE,E_POINTEE}},
157 { "atomic_dec" , {1}, {E_VLTLPTR_ANY}},
158 { "atomic_inc" , {1}, {E_VLTLPTR_ANY}},
159 { "atomic_max" , {1}, {E_VLTLPTR_ANY,E_POINTEE}},
160 { "atomic_min" , {1}, {E_VLTLPTR_ANY,E_POINTEE}},
161 { "atomic_or" , {1}, {E_VLTLPTR_ANY,E_POINTEE}},
162 { "atomic_sub" , {1}, {E_VLTLPTR_ANY,E_POINTEE}},
163 { "atomic_xchg" , {1}, {E_VLTLPTR_ANY,E_POINTEE}},
164 { "atomic_xor" , {1}, {E_VLTLPTR_ANY,E_POINTEE}},
165 { "bitselect" , {1}, {E_ANY,E_COPY,E_COPY}},
166 { "cbrt" , {1}, {E_ANY}},
167 { "ceil" , {1}, {E_ANY}},
168 { "clamp" , {1}, {E_ANY,E_COPY,E_COPY}},
169 { "clz" , {1}, {E_ANY}},
170 { "commit_read_pipe" , {1}, {E_ANY,EX_RESERVEDID}},
171 { "commit_write_pipe" , {1}, {E_ANY,EX_RESERVEDID}},
172 { "copysign" , {1}, {E_ANY,E_COPY}},
173 { "cos" , {1}, {E_ANY}},
174 { "cosh" , {1}, {E_ANY}},
175 { "cospi" , {1}, {E_ANY}},
176 { "cross" , {1}, {E_ANY,E_COPY}},
177 { "ctz" , {1}, {E_ANY}},
178 { "degrees" , {1}, {E_ANY}},
179 { "distance" , {1}, {E_ANY,E_COPY}},
180 { "divide" , {1}, {E_ANY,E_COPY}},
181 { "dot" , {1}, {E_ANY,E_COPY}},
182 { "erf" , {1}, {E_ANY}},
183 { "erfc" , {1}, {E_ANY}},
184 { "exp" , {1}, {E_ANY}},
185 { "exp10" , {1}, {E_ANY}},
186 { "exp2" , {1}, {E_ANY}},
187 { "expm1" , {1}, {E_ANY}},
188 { "fabs" , {1}, {E_ANY}},
189 { "fast_distance" , {1}, {E_ANY,E_COPY}},
190 { "fast_length" , {1}, {E_ANY}},
191 { "fast_normalize" , {1}, {E_ANY}},
192 { "fdim" , {1}, {E_ANY,E_COPY}},
193 { "floor" , {1}, {E_ANY}},
194 { "fma" , {1}, {E_ANY,E_COPY,E_COPY}},
195 { "fmax" , {1}, {E_ANY,E_COPY}},
196 { "fmin" , {1}, {E_ANY,E_COPY}},
197 { "fmod" , {1}, {E_ANY,E_COPY}},
198 { "fract" , {2}, {E_POINTEE,E_ANY}},
199 { "frexp" , {1,2}, {E_ANY,E_ANY}},
200 { "get_image_array_size" , {1}, {E_ANY}},
201 { "get_image_channel_data_type" , {1}, {E_ANY}},
202 { "get_image_channel_order" , {1}, {E_ANY}},
203 { "get_image_dim" , {1}, {E_ANY}},
204 { "get_image_height" , {1}, {E_ANY}},
205 { "get_image_width" , {1}, {E_ANY}},
206 { "get_pipe_max_packets" , {1}, {E_ANY}},
207 { "get_pipe_num_packets" , {1}, {E_ANY}},
208 { "hadd" , {1}, {E_ANY,E_COPY}},
209 { "hypot" , {1}, {E_ANY,E_COPY}},
210 { "ilogb" , {1}, {E_ANY}},
211 { "isequal" , {1}, {E_ANY,E_COPY}},
212 { "isfinite" , {1}, {E_ANY}},
213 { "isgreater" , {1}, {E_ANY,E_COPY}},
214 { "isgreaterequal" , {1}, {E_ANY,E_COPY}},
215 { "isinf" , {1}, {E_ANY}},
216 { "isless" , {1}, {E_ANY,E_COPY}},
217 { "islessequal" , {1}, {E_ANY,E_COPY}},
218 { "islessgreater" , {1}, {E_ANY,E_COPY}},
219 { "isnan" , {1}, {E_ANY}},
220 { "isnormal" , {1}, {E_ANY}},
221 { "isnotequal" , {1}, {E_ANY,E_COPY}},
222 { "isordered" , {1}, {E_ANY,E_COPY}},
223 { "isunordered" , {1}, {E_ANY,E_COPY}},
224 { "ldexp" , {1}, {E_ANY,E_SETBASE_I32}},
225 { "length" , {1}, {E_ANY}},
226 { "lgamma" , {1}, {E_ANY}},
227 { "lgamma_r" , {1,2}, {E_ANY,E_ANY}},
228 { "log" , {1}, {E_ANY}},
229 { "log10" , {1}, {E_ANY}},
230 { "log1p" , {1}, {E_ANY}},
231 { "log2" , {1}, {E_ANY}},
232 { "logb" , {1}, {E_ANY}},
233 { "mad" , {1}, {E_ANY,E_COPY,E_COPY}},
234 { "mad24" , {1}, {E_ANY,E_COPY,E_COPY}},
235 { "mad_hi" , {1}, {E_ANY,E_COPY,E_COPY}},
236 { "mad_sat" , {1}, {E_ANY,E_COPY,E_COPY}},
237 { "max" , {1}, {E_ANY,E_COPY}},
238 { "maxmag" , {1}, {E_ANY,E_COPY}},
239 { "min" , {1}, {E_ANY,E_COPY}},
240 { "minmag" , {1}, {E_ANY,E_COPY}},
241 { "mix" , {1}, {E_ANY,E_COPY,E_COPY}},
242 { "modf" , {2}, {E_POINTEE,E_ANY}},
243 { "mul24" , {1}, {E_ANY,E_COPY}},
244 { "mul_hi" , {1}, {E_ANY,E_COPY}},
245 { "nan" , {1}, {E_ANY}},
246 { "nextafter" , {1}, {E_ANY,E_COPY}},
247 { "normalize" , {1}, {E_ANY}},
248 { "popcount" , {1}, {E_ANY}},
249 { "pow" , {1}, {E_ANY,E_COPY}},
250 { "pown" , {1}, {E_ANY,E_SETBASE_I32}},
251 { "powr" , {1}, {E_ANY,E_COPY}},
252 { "prefetch" , {1}, {E_CONSTPTR_ANY,EX_SIZET}},
253 { "radians" , {1}, {E_ANY}},
254 { "recip" , {1}, {E_ANY}},
255 { "remainder" , {1}, {E_ANY,E_COPY}},
256 { "remquo" , {1,3}, {E_ANY,E_COPY,E_ANY}},
257 { "reserve_read_pipe" , {1}, {E_ANY,EX_UINT}},
258 { "reserve_write_pipe" , {1}, {E_ANY,EX_UINT}},
259 { "rhadd" , {1}, {E_ANY,E_COPY}},
260 { "rint" , {1}, {E_ANY}},
261 { "rootn" , {1}, {E_ANY,E_SETBASE_I32}},
262 { "rotate" , {1}, {E_ANY,E_COPY}},
263 { "round" , {1}, {E_ANY}},
264 { "rsqrt" , {1}, {E_ANY}},
265 { "select" , {1,3}, {E_ANY,E_COPY,E_ANY}},
266 { "shuffle" , {1,2}, {E_ANY,E_ANY}},
267 { "shuffle2" , {1,3}, {E_ANY,E_COPY,E_ANY}},
268 { "sign" , {1}, {E_ANY}},
269 { "signbit" , {1}, {E_ANY}},
270 { "sin" , {1}, {E_ANY}},
271 { "sincos" , {2}, {E_POINTEE,E_ANY}},
272 { "sinh" , {1}, {E_ANY}},
273 { "sinpi" , {1}, {E_ANY}},
274 { "smoothstep" , {1}, {E_ANY,E_COPY,E_COPY}},
275 { "sqrt" , {1}, {E_ANY}},
276 { "step" , {1}, {E_ANY,E_COPY}},
277 { "sub_group_broadcast" , {1}, {E_ANY,EX_UINT}},
278 { "sub_group_commit_read_pipe" , {1}, {E_ANY,EX_RESERVEDID}},
279 { "sub_group_commit_write_pipe" , {1}, {E_ANY,EX_RESERVEDID}},
280 { "sub_group_reduce_add" , {1}, {E_ANY}},
281 { "sub_group_reduce_max" , {1}, {E_ANY}},
282 { "sub_group_reduce_min" , {1}, {E_ANY}},
283 { "sub_group_reserve_read_pipe" , {1}, {E_ANY,EX_UINT}},
284 { "sub_group_reserve_write_pipe" , {1}, {E_ANY,EX_UINT}},
285 { "sub_group_scan_exclusive_add" , {1}, {E_ANY}},
286 { "sub_group_scan_exclusive_max" , {1}, {E_ANY}},
287 { "sub_group_scan_exclusive_min" , {1}, {E_ANY}},
288 { "sub_group_scan_inclusive_add" , {1}, {E_ANY}},
289 { "sub_group_scan_inclusive_max" , {1}, {E_ANY}},
290 { "sub_group_scan_inclusive_min" , {1}, {E_ANY}},
291 { "sub_sat" , {1}, {E_ANY,E_COPY}},
292 { "tan" , {1}, {E_ANY}},
293 { "tanh" , {1}, {E_ANY}},
294 { "tanpi" , {1}, {E_ANY}},
295 { "tgamma" , {1}, {E_ANY}},
296 { "trunc" , {1}, {E_ANY}},
297 { "upsample" , {1}, {E_ANY,E_MAKEBASE_UNS}},
298 { "vec_step" , {1}, {E_ANY}},
299 { "vstore" , {3}, {E_POINTEE,EX_SIZET,E_ANY}},
300 { "vstore16" , {3}, {E_V16_OF_POINTEE,EX_SIZET,E_ANY}},
301 { "vstore2" , {3}, {E_V2_OF_POINTEE,EX_SIZET,E_ANY}},
302 { "vstore3" , {3}, {E_V3_OF_POINTEE,EX_SIZET,E_ANY}},
303 { "vstore4" , {3}, {E_V4_OF_POINTEE,EX_SIZET,E_ANY}},
304 { "vstore8" , {3}, {E_V8_OF_POINTEE,EX_SIZET,E_ANY}},
305 { "work_group_commit_read_pipe" , {1}, {E_ANY,EX_RESERVEDID}},
306 { "work_group_commit_write_pipe" , {1}, {E_ANY,EX_RESERVEDID}},
307 { "work_group_reduce_add" , {1}, {E_ANY}},
308 { "work_group_reduce_max" , {1}, {E_ANY}},
309 { "work_group_reduce_min" , {1}, {E_ANY}},
310 { "work_group_reserve_read_pipe" , {1}, {E_ANY,EX_UINT}},
311 { "work_group_reserve_write_pipe" , {1}, {E_ANY,EX_UINT}},
312 { "work_group_scan_exclusive_add" , {1}, {E_ANY}},
313 { "work_group_scan_exclusive_max" , {1}, {E_ANY}},
314 { "work_group_scan_exclusive_min" , {1}, {E_ANY}},
315 { "work_group_scan_inclusive_add" , {1}, {E_ANY}},
316 { "work_group_scan_inclusive_max" , {1}, {E_ANY}},
317 { "work_group_scan_inclusive_min" , {1}, {E_ANY}},
318 { "write_imagef" , {1}, {E_ANY,E_IMAGECOORDS,EX_FLOAT4}},
319 { "write_imagei" , {1}, {E_ANY,E_IMAGECOORDS,EX_INTV4}},
320 { "write_imageui" , {1}, {E_ANY,E_IMAGECOORDS,EX_UINTV4}},
321 { "ncos" , {1}, {E_ANY} },
322 { "nexp2" , {1}, {E_ANY} },
323 { "nfma" , {1}, {E_ANY, E_COPY, E_COPY} },
324 { "nlog2" , {1}, {E_ANY} },
325 { "nrcp" , {1}, {E_ANY} },
326 { "nrsqrt" , {1}, {E_ANY} },
327 { "nsin" , {1}, {E_ANY} },
328 { "nsqrt" , {1}, {E_ANY} },
329 { "ftz" , {1}, {E_ANY} },
330 { "fldexp" , {1}, {E_ANY, EX_UINT} },
331 { "class" , {1}, {E_ANY, EX_UINT} },
332 { "rcbrt" , {1}, {E_ANY} },
333 };
334
335 // Library functions with unmangled name.
336 const UnmangledFuncInfo UnmangledFuncInfo::Table[] = {
337 {"__read_pipe_2", 4},
338 {"__read_pipe_4", 6},
339 {"__write_pipe_2", 4},
340 {"__write_pipe_4", 6},
341 };
342
343 const unsigned UnmangledFuncInfo::TableSize =
344 array_lengthof(UnmangledFuncInfo::Table);
345
getRetType(AMDGPULibFunc::EFuncId id,const AMDGPULibFunc::Param (& Leads)[2])346 static AMDGPULibFunc::Param getRetType(AMDGPULibFunc::EFuncId id,
347 const AMDGPULibFunc::Param (&Leads)[2]) {
348 AMDGPULibFunc::Param Res = Leads[0];
349 // TBD - This switch may require to be extended for other intriniscs
350 switch (id) {
351 case AMDGPULibFunc::EI_SINCOS:
352 Res.PtrKind = AMDGPULibFunc::BYVALUE;
353 break;
354 default:
355 break;
356 }
357 return Res;
358 }
359
360 class ParamIterator {
361 const AMDGPULibFunc::Param (&Leads)[2];
362 const ManglingRule& Rule;
363 int Index;
364 public:
ParamIterator(const AMDGPULibFunc::Param (& leads)[2],const ManglingRule & rule)365 ParamIterator(const AMDGPULibFunc::Param (&leads)[2],
366 const ManglingRule& rule)
367 : Leads(leads), Rule(rule), Index(0) {}
368
369 AMDGPULibFunc::Param getNextParam();
370 };
371
getNextParam()372 AMDGPULibFunc::Param ParamIterator::getNextParam() {
373 AMDGPULibFunc::Param P;
374 if (Index >= int(sizeof Rule.Param/sizeof Rule.Param[0])) return P;
375
376 const char R = Rule.Param[Index];
377 switch (R) {
378 case E_NONE: break;
379 case EX_UINT:
380 P.ArgType = AMDGPULibFunc::U32; break;
381 case EX_INTV4:
382 P.ArgType = AMDGPULibFunc::I32; P.VectorSize = 4; break;
383 case EX_UINTV4:
384 P.ArgType = AMDGPULibFunc::U32; P.VectorSize = 4; break;
385 case EX_FLOAT4:
386 P.ArgType = AMDGPULibFunc::F32; P.VectorSize = 4; break;
387 case EX_SIZET:
388 P.ArgType = AMDGPULibFunc::U64; break;
389 case EX_EVENT:
390 P.ArgType = AMDGPULibFunc::EVENT; break;
391 case EX_SAMPLER:
392 P.ArgType = AMDGPULibFunc::SAMPLER; break;
393 case EX_RESERVEDID: break; // TBD
394 default:
395 if (Index == (Rule.Lead[1] - 1)) P = Leads[1];
396 else P = Leads[0];
397
398 switch (R) {
399 case E_ANY:
400 case E_COPY: break;
401
402 case E_POINTEE:
403 P.PtrKind = AMDGPULibFunc::BYVALUE; break;
404 case E_V2_OF_POINTEE:
405 P.VectorSize = 2; P.PtrKind = AMDGPULibFunc::BYVALUE; break;
406 case E_V3_OF_POINTEE:
407 P.VectorSize = 3; P.PtrKind = AMDGPULibFunc::BYVALUE; break;
408 case E_V4_OF_POINTEE:
409 P.VectorSize = 4; P.PtrKind = AMDGPULibFunc::BYVALUE; break;
410 case E_V8_OF_POINTEE:
411 P.VectorSize = 8; P.PtrKind = AMDGPULibFunc::BYVALUE; break;
412 case E_V16_OF_POINTEE:
413 P.VectorSize = 16; P.PtrKind = AMDGPULibFunc::BYVALUE; break;
414 case E_CONSTPTR_ANY:
415 P.PtrKind |= AMDGPULibFunc::CONST; break;
416 case E_VLTLPTR_ANY:
417 P.PtrKind |= AMDGPULibFunc::VOLATILE; break;
418 case E_SETBASE_I32:
419 P.ArgType = AMDGPULibFunc::I32; break;
420 case E_SETBASE_U32:
421 P.ArgType = AMDGPULibFunc::U32; break;
422
423 case E_MAKEBASE_UNS:
424 P.ArgType &= ~AMDGPULibFunc::BASE_TYPE_MASK;
425 P.ArgType |= AMDGPULibFunc::UINT;
426 break;
427
428 case E_IMAGECOORDS:
429 switch (P.ArgType) {
430 case AMDGPULibFunc::IMG1DA: P.VectorSize = 2; break;
431 case AMDGPULibFunc::IMG1DB: P.VectorSize = 1; break;
432 case AMDGPULibFunc::IMG2DA: P.VectorSize = 4; break;
433 case AMDGPULibFunc::IMG1D: P.VectorSize = 1; break;
434 case AMDGPULibFunc::IMG2D: P.VectorSize = 2; break;
435 case AMDGPULibFunc::IMG3D: P.VectorSize = 4; break;
436 }
437 P.PtrKind = AMDGPULibFunc::BYVALUE;
438 P.ArgType = AMDGPULibFunc::I32;
439 break;
440
441 case E_CONSTPTR_SWAPGL: {
442 unsigned AS = AMDGPULibFunc::getAddrSpaceFromEPtrKind(P.PtrKind);
443 switch (AS) {
444 case AMDGPUAS::GLOBAL_ADDRESS: AS = AMDGPUAS::LOCAL_ADDRESS; break;
445 case AMDGPUAS::LOCAL_ADDRESS: AS = AMDGPUAS::GLOBAL_ADDRESS; break;
446 }
447 P.PtrKind = AMDGPULibFunc::getEPtrKindFromAddrSpace(AS);
448 P.PtrKind |= AMDGPULibFunc::CONST;
449 break;
450 }
451
452 default: llvm_unreachable("Unhandeled param rule");
453 }
454 }
455 ++Index;
456 return P;
457 }
458
drop_front(StringRef & str,size_t n=1)459 inline static void drop_front(StringRef& str, size_t n = 1) {
460 str = str.drop_front(n);
461 }
462
eatTerm(StringRef & mangledName,const char c)463 static bool eatTerm(StringRef& mangledName, const char c) {
464 if (mangledName.front() == c) {
465 drop_front(mangledName);
466 return true;
467 }
468 return false;
469 }
470
471 template <size_t N>
eatTerm(StringRef & mangledName,const char (& str)[N])472 static bool eatTerm(StringRef& mangledName, const char (&str)[N]) {
473 if (mangledName.startswith(StringRef(str, N-1))) {
474 drop_front(mangledName, N-1);
475 return true;
476 }
477 return false;
478 }
479
eatNumber(StringRef & s)480 static int eatNumber(StringRef& s) {
481 size_t const savedSize = s.size();
482 int n = 0;
483 while (!s.empty() && isDigit(s.front())) {
484 n = n*10 + s.front() - '0';
485 drop_front(s);
486 }
487 return s.size() < savedSize ? n : -1;
488 }
489
eatLengthPrefixedName(StringRef & mangledName)490 static StringRef eatLengthPrefixedName(StringRef& mangledName) {
491 int const Len = eatNumber(mangledName);
492 if (Len <= 0 || static_cast<size_t>(Len) > mangledName.size())
493 return StringRef();
494 StringRef Res = mangledName.substr(0, Len);
495 drop_front(mangledName, Len);
496 return Res;
497 }
498
499 } // end anonymous namespace
500
AMDGPUMangledLibFunc()501 AMDGPUMangledLibFunc::AMDGPUMangledLibFunc() {
502 FuncId = EI_NONE;
503 FKind = NOPFX;
504 Leads[0].reset();
505 Leads[1].reset();
506 Name.clear();
507 }
508
AMDGPUUnmangledLibFunc()509 AMDGPUUnmangledLibFunc::AMDGPUUnmangledLibFunc() {
510 FuncId = EI_NONE;
511 FuncTy = nullptr;
512 }
513
AMDGPUMangledLibFunc(EFuncId id,const AMDGPUMangledLibFunc & copyFrom)514 AMDGPUMangledLibFunc::AMDGPUMangledLibFunc(
515 EFuncId id, const AMDGPUMangledLibFunc ©From) {
516 FuncId = id;
517 FKind = copyFrom.FKind;
518 Leads[0] = copyFrom.Leads[0];
519 Leads[1] = copyFrom.Leads[1];
520 }
521
522 ///////////////////////////////////////////////////////////////////////////////
523 // Demangling
524
parseVecSize(StringRef & mangledName)525 static int parseVecSize(StringRef& mangledName) {
526 size_t const Len = eatNumber(mangledName);
527 switch (Len) {
528 case 2: case 3: case 4: case 8: case 16:
529 return Len;
530 default:
531 break;
532 }
533 return 1;
534 }
535
parseNamePrefix(StringRef & mangledName)536 static AMDGPULibFunc::ENamePrefix parseNamePrefix(StringRef& mangledName) {
537 std::pair<StringRef, StringRef> const P = mangledName.split('_');
538 AMDGPULibFunc::ENamePrefix Pfx =
539 StringSwitch<AMDGPULibFunc::ENamePrefix>(P.first)
540 .Case("native", AMDGPULibFunc::NATIVE)
541 .Case("half" , AMDGPULibFunc::HALF)
542 .Default(AMDGPULibFunc::NOPFX);
543
544 if (Pfx != AMDGPULibFunc::NOPFX)
545 mangledName = P.second;
546
547 return Pfx;
548 }
549
buildManglingRulesMap()550 StringMap<int> ManglingRule::buildManglingRulesMap() {
551 StringMap<int> Map(array_lengthof(manglingRules));
552 int Id = 0;
553 for (auto Rule : manglingRules)
554 Map.insert({Rule.Name, Id++});
555 return Map;
556 }
557
parseUnmangledName(StringRef FullName)558 bool AMDGPUMangledLibFunc::parseUnmangledName(StringRef FullName) {
559 static const StringMap<int> manglingRulesMap =
560 ManglingRule::buildManglingRulesMap();
561 FuncId = static_cast<EFuncId>(manglingRulesMap.lookup(FullName));
562 return FuncId != EI_NONE;
563 }
564
565 ///////////////////////////////////////////////////////////////////////////////
566 // Itanium Demangling
567
568 namespace {
569 struct ItaniumParamParser {
570 AMDGPULibFunc::Param Prev;
571 bool parseItaniumParam(StringRef& param, AMDGPULibFunc::Param &res);
572 };
573 } // namespace
574
parseItaniumParam(StringRef & param,AMDGPULibFunc::Param & res)575 bool ItaniumParamParser::parseItaniumParam(StringRef& param,
576 AMDGPULibFunc::Param &res) {
577 res.reset();
578 if (param.empty()) return false;
579
580 // parse pointer prefix
581 if (eatTerm(param, 'P')) {
582 if (eatTerm(param, 'K')) res.PtrKind |= AMDGPULibFunc::CONST;
583 if (eatTerm(param, 'V')) res.PtrKind |= AMDGPULibFunc::VOLATILE;
584 unsigned AS;
585 if (!eatTerm(param, "U3AS")) {
586 AS = 0;
587 } else {
588 AS = param.front() - '0';
589 drop_front(param, 1);
590 }
591 res.PtrKind |= AMDGPULibFuncBase::getEPtrKindFromAddrSpace(AS);
592 } else {
593 res.PtrKind = AMDGPULibFunc::BYVALUE;
594 }
595
596 // parse vector size
597 if (eatTerm(param,"Dv")) {
598 res.VectorSize = parseVecSize(param);
599 if (res.VectorSize==1 || !eatTerm(param, '_')) return false;
600 }
601
602 // parse type
603 char const TC = param.front();
604 if (isDigit(TC)) {
605 res.ArgType = StringSwitch<AMDGPULibFunc::EType>
606 (eatLengthPrefixedName(param))
607 .Case("ocl_image1darray" , AMDGPULibFunc::IMG1DA)
608 .Case("ocl_image1dbuffer", AMDGPULibFunc::IMG1DB)
609 .Case("ocl_image2darray" , AMDGPULibFunc::IMG2DA)
610 .Case("ocl_image1d" , AMDGPULibFunc::IMG1D)
611 .Case("ocl_image2d" , AMDGPULibFunc::IMG2D)
612 .Case("ocl_image3d" , AMDGPULibFunc::IMG3D)
613 .Case("ocl_event" , AMDGPULibFunc::DUMMY)
614 .Case("ocl_sampler" , AMDGPULibFunc::DUMMY)
615 .Default(AMDGPULibFunc::DUMMY);
616 } else {
617 drop_front(param);
618 switch (TC) {
619 case 'h': res.ArgType = AMDGPULibFunc::U8; break;
620 case 't': res.ArgType = AMDGPULibFunc::U16; break;
621 case 'j': res.ArgType = AMDGPULibFunc::U32; break;
622 case 'm': res.ArgType = AMDGPULibFunc::U64; break;
623 case 'c': res.ArgType = AMDGPULibFunc::I8; break;
624 case 's': res.ArgType = AMDGPULibFunc::I16; break;
625 case 'i': res.ArgType = AMDGPULibFunc::I32; break;
626 case 'l': res.ArgType = AMDGPULibFunc::I64; break;
627 case 'f': res.ArgType = AMDGPULibFunc::F32; break;
628 case 'd': res.ArgType = AMDGPULibFunc::F64; break;
629 case 'D': if (!eatTerm(param, 'h')) return false;
630 res.ArgType = AMDGPULibFunc::F16; break;
631 case 'S':
632 if (!eatTerm(param, '_')) {
633 eatNumber(param);
634 if (!eatTerm(param, '_')) return false;
635 }
636 res.VectorSize = Prev.VectorSize;
637 res.ArgType = Prev.ArgType;
638 break;
639 default:;
640 }
641 }
642 if (res.ArgType == 0) return false;
643 Prev.VectorSize = res.VectorSize;
644 Prev.ArgType = res.ArgType;
645 return true;
646 }
647
parseFuncName(StringRef & mangledName)648 bool AMDGPUMangledLibFunc::parseFuncName(StringRef &mangledName) {
649 StringRef Name = eatLengthPrefixedName(mangledName);
650 FKind = parseNamePrefix(Name);
651 if (!parseUnmangledName(Name))
652 return false;
653
654 const ManglingRule& Rule = manglingRules[FuncId];
655 ItaniumParamParser Parser;
656 for (int I=0; I < Rule.maxLeadIndex(); ++I) {
657 Param P;
658 if (!Parser.parseItaniumParam(mangledName, P))
659 return false;
660
661 if ((I + 1) == Rule.Lead[0]) Leads[0] = P;
662 if ((I + 1) == Rule.Lead[1]) Leads[1] = P;
663 }
664 return true;
665 }
666
parseFuncName(StringRef & Name)667 bool AMDGPUUnmangledLibFunc::parseFuncName(StringRef &Name) {
668 if (!UnmangledFuncInfo::lookup(Name, FuncId))
669 return false;
670 setName(Name);
671 return true;
672 }
673
parse(StringRef FuncName,AMDGPULibFunc & F)674 bool AMDGPULibFunc::parse(StringRef FuncName, AMDGPULibFunc &F) {
675 if (FuncName.empty()) {
676 F.Impl = std::unique_ptr<AMDGPULibFuncImpl>();
677 return false;
678 }
679
680 if (eatTerm(FuncName, "_Z"))
681 F.Impl = std::make_unique<AMDGPUMangledLibFunc>();
682 else
683 F.Impl = std::make_unique<AMDGPUUnmangledLibFunc>();
684 if (F.Impl->parseFuncName(FuncName))
685 return true;
686
687 F.Impl = std::unique_ptr<AMDGPULibFuncImpl>();
688 return false;
689 }
690
getUnmangledName(StringRef mangledName)691 StringRef AMDGPUMangledLibFunc::getUnmangledName(StringRef mangledName) {
692 StringRef S = mangledName;
693 if (eatTerm(S, "_Z"))
694 return eatLengthPrefixedName(S);
695 return StringRef();
696 }
697
698 ///////////////////////////////////////////////////////////////////////////////
699 // Mangling
700
701 template <typename Stream>
writeName(Stream & OS) const702 void AMDGPUMangledLibFunc::writeName(Stream &OS) const {
703 const char *Pfx = "";
704 switch (FKind) {
705 case NATIVE: Pfx = "native_"; break;
706 case HALF: Pfx = "half_"; break;
707 default: break;
708 }
709 if (!Name.empty()) {
710 OS << Pfx << Name;
711 } else if (FuncId != EI_NONE) {
712 OS << Pfx;
713 const StringRef& S = manglingRules[FuncId].Name;
714 OS.write(S.data(), S.size());
715 }
716 }
717
mangle() const718 std::string AMDGPUMangledLibFunc::mangle() const { return mangleNameItanium(); }
719
720 ///////////////////////////////////////////////////////////////////////////////
721 // Itanium Mangling
722
getItaniumTypeName(AMDGPULibFunc::EType T)723 static const char *getItaniumTypeName(AMDGPULibFunc::EType T) {
724 switch (T) {
725 case AMDGPULibFunc::U8: return "h";
726 case AMDGPULibFunc::U16: return "t";
727 case AMDGPULibFunc::U32: return "j";
728 case AMDGPULibFunc::U64: return "m";
729 case AMDGPULibFunc::I8: return "c";
730 case AMDGPULibFunc::I16: return "s";
731 case AMDGPULibFunc::I32: return "i";
732 case AMDGPULibFunc::I64: return "l";
733 case AMDGPULibFunc::F16: return "Dh";
734 case AMDGPULibFunc::F32: return "f";
735 case AMDGPULibFunc::F64: return "d";
736 case AMDGPULibFunc::IMG1DA: return "16ocl_image1darray";
737 case AMDGPULibFunc::IMG1DB: return "17ocl_image1dbuffer";
738 case AMDGPULibFunc::IMG2DA: return "16ocl_image2darray";
739 case AMDGPULibFunc::IMG1D: return "11ocl_image1d";
740 case AMDGPULibFunc::IMG2D: return "11ocl_image2d";
741 case AMDGPULibFunc::IMG3D: return "11ocl_image3d";
742 case AMDGPULibFunc::SAMPLER: return "11ocl_sampler";
743 case AMDGPULibFunc::EVENT: return "9ocl_event";
744 default: llvm_unreachable("Unhandeled param type");
745 }
746 return nullptr;
747 }
748
749 namespace {
750 // Itanium mangling ABI says:
751 // "5.1.8. Compression
752 // ... Each non-terminal in the grammar for which <substitution> appears on the
753 // right-hand side is both a source of future substitutions and a candidate
754 // for being substituted. There are two exceptions that appear to be
755 // substitution candidates from the grammar, but are explicitly excluded:
756 // 1. <builtin-type> other than vendor extended types ..."
757
758 // For the purpose of functions the following productions make sence for the
759 // substitution:
760 // <type> ::= <builtin-type>
761 // ::= <class-enum-type>
762 // ::= <array-type>
763 // ::=<CV-qualifiers> <type>
764 // ::= P <type> # pointer-to
765 // ::= <substitution>
766 //
767 // Note that while types like images, samplers and events are by the ABI encoded
768 // using <class-enum-type> production rule they're not used for substitution
769 // because clang consider them as builtin types.
770 //
771 // DvNN_ type is GCC extension for vectors and is a subject for the substitution.
772
773
774 class ItaniumMangler {
775 SmallVector<AMDGPULibFunc::Param, 10> Str; // list of accumulated substituions
776 bool UseAddrSpace;
777
findSubst(const AMDGPULibFunc::Param & P) const778 int findSubst(const AMDGPULibFunc::Param& P) const {
779 for(unsigned I = 0; I < Str.size(); ++I) {
780 const AMDGPULibFunc::Param& T = Str[I];
781 if (P.PtrKind == T.PtrKind &&
782 P.VectorSize == T.VectorSize &&
783 P.ArgType == T.ArgType) {
784 return I;
785 }
786 }
787 return -1;
788 }
789
790 template <typename Stream>
trySubst(Stream & os,const AMDGPULibFunc::Param & p)791 bool trySubst(Stream& os, const AMDGPULibFunc::Param& p) {
792 int const subst = findSubst(p);
793 if (subst < 0) return false;
794 // Substitutions are mangled as S(XX)?_ where XX is a hexadecimal number
795 // 0 1 2
796 // S_ S0_ S1_
797 if (subst == 0) os << "S_";
798 else os << 'S' << (subst-1) << '_';
799 return true;
800 }
801
802 public:
ItaniumMangler(bool useAddrSpace)803 ItaniumMangler(bool useAddrSpace)
804 : UseAddrSpace(useAddrSpace) {}
805
806 template <typename Stream>
operator ()(Stream & os,AMDGPULibFunc::Param p)807 void operator()(Stream& os, AMDGPULibFunc::Param p) {
808
809 // Itanium mangling ABI 5.1.8. Compression:
810 // Logically, the substitutable components of a mangled name are considered
811 // left-to-right, components before the composite structure of which they
812 // are a part. If a component has been encountered before, it is substituted
813 // as described below. This decision is independent of whether its components
814 // have been substituted, so an implementation may optimize by considering
815 // large structures for substitution before their components. If a component
816 // has not been encountered before, its mangling is identified, and it is
817 // added to a dictionary of substitution candidates. No entity is added to
818 // the dictionary twice.
819 AMDGPULibFunc::Param Ptr;
820
821 if (p.PtrKind) {
822 if (trySubst(os, p)) return;
823 os << 'P';
824 if (p.PtrKind & AMDGPULibFunc::CONST) os << 'K';
825 if (p.PtrKind & AMDGPULibFunc::VOLATILE) os << 'V';
826 unsigned AS = UseAddrSpace
827 ? AMDGPULibFuncBase::getAddrSpaceFromEPtrKind(p.PtrKind)
828 : 0;
829 if (AS != 0) os << "U3AS" << AS;
830 Ptr = p;
831 p.PtrKind = 0;
832 }
833
834 if (p.VectorSize > 1) {
835 if (trySubst(os, p)) goto exit;
836 Str.push_back(p);
837 os << "Dv" << static_cast<unsigned>(p.VectorSize) << '_';
838 }
839
840 os << getItaniumTypeName((AMDGPULibFunc::EType)p.ArgType);
841
842 exit:
843 if (Ptr.ArgType) Str.push_back(Ptr);
844 }
845 };
846 } // namespace
847
mangleNameItanium() const848 std::string AMDGPUMangledLibFunc::mangleNameItanium() const {
849 SmallString<128> Buf;
850 raw_svector_ostream S(Buf);
851 SmallString<128> NameBuf;
852 raw_svector_ostream Name(NameBuf);
853 writeName(Name);
854 const StringRef& NameStr = Name.str();
855 S << "_Z" << static_cast<int>(NameStr.size()) << NameStr;
856
857 ItaniumMangler Mangler(true);
858 ParamIterator I(Leads, manglingRules[FuncId]);
859 Param P;
860 while ((P = I.getNextParam()).ArgType != 0)
861 Mangler(S, P);
862 return std::string(S.str());
863 }
864
865 ///////////////////////////////////////////////////////////////////////////////
866 // Misc
867
getIntrinsicParamType(LLVMContext & C,const AMDGPULibFunc::Param & P,bool useAddrSpace)868 static Type* getIntrinsicParamType(
869 LLVMContext& C,
870 const AMDGPULibFunc::Param& P,
871 bool useAddrSpace) {
872 Type* T = nullptr;
873 switch (P.ArgType) {
874 case AMDGPULibFunc::U8:
875 case AMDGPULibFunc::I8: T = Type::getInt8Ty(C); break;
876 case AMDGPULibFunc::U16:
877 case AMDGPULibFunc::I16: T = Type::getInt16Ty(C); break;
878 case AMDGPULibFunc::U32:
879 case AMDGPULibFunc::I32: T = Type::getInt32Ty(C); break;
880 case AMDGPULibFunc::U64:
881 case AMDGPULibFunc::I64: T = Type::getInt64Ty(C); break;
882 case AMDGPULibFunc::F16: T = Type::getHalfTy(C); break;
883 case AMDGPULibFunc::F32: T = Type::getFloatTy(C); break;
884 case AMDGPULibFunc::F64: T = Type::getDoubleTy(C); break;
885
886 case AMDGPULibFunc::IMG1DA:
887 case AMDGPULibFunc::IMG1DB:
888 case AMDGPULibFunc::IMG2DA:
889 case AMDGPULibFunc::IMG1D:
890 case AMDGPULibFunc::IMG2D:
891 case AMDGPULibFunc::IMG3D:
892 T = StructType::create(C,"ocl_image")->getPointerTo(); break;
893 case AMDGPULibFunc::SAMPLER:
894 T = StructType::create(C,"ocl_sampler")->getPointerTo(); break;
895 case AMDGPULibFunc::EVENT:
896 T = StructType::create(C,"ocl_event")->getPointerTo(); break;
897 default:
898 llvm_unreachable("Unhandeled param type");
899 return nullptr;
900 }
901 if (P.VectorSize > 1)
902 T = FixedVectorType::get(T, P.VectorSize);
903 if (P.PtrKind != AMDGPULibFunc::BYVALUE)
904 T = useAddrSpace ? T->getPointerTo((P.PtrKind & AMDGPULibFunc::ADDR_SPACE)
905 - 1)
906 : T->getPointerTo();
907 return T;
908 }
909
getFunctionType(Module & M) const910 FunctionType *AMDGPUMangledLibFunc::getFunctionType(Module &M) const {
911 LLVMContext& C = M.getContext();
912 std::vector<Type*> Args;
913 ParamIterator I(Leads, manglingRules[FuncId]);
914 Param P;
915 while ((P=I.getNextParam()).ArgType != 0)
916 Args.push_back(getIntrinsicParamType(C, P, true));
917
918 return FunctionType::get(
919 getIntrinsicParamType(C, getRetType(FuncId, Leads), true),
920 Args, false);
921 }
922
getNumArgs() const923 unsigned AMDGPUMangledLibFunc::getNumArgs() const {
924 return manglingRules[FuncId].getNumArgs();
925 }
926
getNumArgs() const927 unsigned AMDGPUUnmangledLibFunc::getNumArgs() const {
928 return UnmangledFuncInfo::getNumArgs(FuncId);
929 }
930
getName() const931 std::string AMDGPUMangledLibFunc::getName() const {
932 SmallString<128> Buf;
933 raw_svector_ostream OS(Buf);
934 writeName(OS);
935 return std::string(OS.str());
936 }
937
getFunction(Module * M,const AMDGPULibFunc & fInfo)938 Function *AMDGPULibFunc::getFunction(Module *M, const AMDGPULibFunc &fInfo) {
939 std::string FuncName = fInfo.mangle();
940 Function *F = dyn_cast_or_null<Function>(
941 M->getValueSymbolTable().lookup(FuncName));
942
943 // check formal with actual types conformance
944 if (F && !F->isDeclaration()
945 && !F->isVarArg()
946 && F->arg_size() == fInfo.getNumArgs()) {
947 return F;
948 }
949 return nullptr;
950 }
951
getOrInsertFunction(Module * M,const AMDGPULibFunc & fInfo)952 FunctionCallee AMDGPULibFunc::getOrInsertFunction(Module *M,
953 const AMDGPULibFunc &fInfo) {
954 std::string const FuncName = fInfo.mangle();
955 Function *F = dyn_cast_or_null<Function>(
956 M->getValueSymbolTable().lookup(FuncName));
957
958 // check formal with actual types conformance
959 if (F && !F->isDeclaration()
960 && !F->isVarArg()
961 && F->arg_size() == fInfo.getNumArgs()) {
962 return F;
963 }
964
965 FunctionType *FuncTy = fInfo.getFunctionType(*M);
966
967 bool hasPtr = false;
968 for (FunctionType::param_iterator
969 PI = FuncTy->param_begin(),
970 PE = FuncTy->param_end();
971 PI != PE; ++PI) {
972 const Type* argTy = static_cast<const Type*>(*PI);
973 if (argTy->isPointerTy()) {
974 hasPtr = true;
975 break;
976 }
977 }
978
979 FunctionCallee C;
980 if (hasPtr) {
981 // Do not set extra attributes for functions with pointer arguments.
982 C = M->getOrInsertFunction(FuncName, FuncTy);
983 } else {
984 AttributeList Attr;
985 LLVMContext &Ctx = M->getContext();
986 Attr = Attr.addAttribute(Ctx, AttributeList::FunctionIndex,
987 Attribute::ReadOnly);
988 Attr = Attr.addAttribute(Ctx, AttributeList::FunctionIndex,
989 Attribute::NoUnwind);
990 C = M->getOrInsertFunction(FuncName, FuncTy, Attr);
991 }
992
993 return C;
994 }
995
buildNameMap()996 StringMap<unsigned> UnmangledFuncInfo::buildNameMap() {
997 StringMap<unsigned> Map;
998 for (unsigned I = 0; I != TableSize; ++I)
999 Map[Table[I].Name] = I;
1000 return Map;
1001 }
1002
lookup(StringRef Name,ID & Id)1003 bool UnmangledFuncInfo::lookup(StringRef Name, ID &Id) {
1004 static const StringMap<unsigned> Map = buildNameMap();
1005 auto Loc = Map.find(Name);
1006 if (Loc != Map.end()) {
1007 Id = toFuncId(Loc->second);
1008 return true;
1009 }
1010 Id = AMDGPULibFunc::EI_NONE;
1011 return false;
1012 }
1013
AMDGPULibFunc(const AMDGPULibFunc & F)1014 AMDGPULibFunc::AMDGPULibFunc(const AMDGPULibFunc &F) {
1015 if (auto *MF = dyn_cast<AMDGPUMangledLibFunc>(F.Impl.get()))
1016 Impl.reset(new AMDGPUMangledLibFunc(*MF));
1017 else if (auto *UMF = dyn_cast<AMDGPUUnmangledLibFunc>(F.Impl.get()))
1018 Impl.reset(new AMDGPUUnmangledLibFunc(*UMF));
1019 else
1020 Impl = std::unique_ptr<AMDGPULibFuncImpl>();
1021 }
1022
operator =(const AMDGPULibFunc & F)1023 AMDGPULibFunc &AMDGPULibFunc::operator=(const AMDGPULibFunc &F) {
1024 if (this == &F)
1025 return *this;
1026 new (this) AMDGPULibFunc(F);
1027 return *this;
1028 }
1029
AMDGPULibFunc(EFuncId Id,const AMDGPULibFunc & CopyFrom)1030 AMDGPULibFunc::AMDGPULibFunc(EFuncId Id, const AMDGPULibFunc &CopyFrom) {
1031 assert(AMDGPULibFuncBase::isMangled(Id) && CopyFrom.isMangled() &&
1032 "not supported");
1033 Impl.reset(new AMDGPUMangledLibFunc(
1034 Id, *cast<AMDGPUMangledLibFunc>(CopyFrom.Impl.get())));
1035 }
1036
AMDGPULibFunc(StringRef Name,FunctionType * FT)1037 AMDGPULibFunc::AMDGPULibFunc(StringRef Name, FunctionType *FT) {
1038 Impl.reset(new AMDGPUUnmangledLibFunc(Name, FT));
1039 }
1040
initMangled()1041 void AMDGPULibFunc::initMangled() { Impl.reset(new AMDGPUMangledLibFunc()); }
1042
getLeads()1043 AMDGPULibFunc::Param *AMDGPULibFunc::getLeads() {
1044 if (!Impl)
1045 initMangled();
1046 return cast<AMDGPUMangledLibFunc>(Impl.get())->Leads;
1047 }
1048
getLeads() const1049 const AMDGPULibFunc::Param *AMDGPULibFunc::getLeads() const {
1050 return cast<const AMDGPUMangledLibFunc>(Impl.get())->Leads;
1051 }
1052