LLVM 19.0.0git
SampleProf.cpp
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1//=-- SampleProf.cpp - Sample profiling format support --------------------===//
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 common definitions used in the reading and writing of
10// sample profile data.
11//
12//===----------------------------------------------------------------------===//
13
15#include "llvm/Config/llvm-config.h"
17#include "llvm/IR/PseudoProbe.h"
21#include "llvm/Support/Debug.h"
24#include <string>
25#include <system_error>
26
27using namespace llvm;
28using namespace sampleprof;
29
31 "profile-symbol-list-cutoff", cl::Hidden, cl::init(-1),
32 cl::desc("Cutoff value about how many symbols in profile symbol list "
33 "will be used. This is very useful for performance debugging"));
34
36 "generate-merged-base-profiles",
37 cl::desc("When generating nested context-sensitive profiles, always "
38 "generate extra base profile for function with all its context "
39 "profiles merged into it."));
40
41namespace llvm {
42namespace sampleprof {
46bool FunctionSamples::UseMD5 = false;
49} // namespace sampleprof
50} // namespace llvm
51
52namespace {
53
54// FIXME: This class is only here to support the transition to llvm::Error. It
55// will be removed once this transition is complete. Clients should prefer to
56// deal with the Error value directly, rather than converting to error_code.
57class SampleProfErrorCategoryType : public std::error_category {
58 const char *name() const noexcept override { return "llvm.sampleprof"; }
59
60 std::string message(int IE) const override {
61 sampleprof_error E = static_cast<sampleprof_error>(IE);
62 switch (E) {
63 case sampleprof_error::success:
64 return "Success";
65 case sampleprof_error::bad_magic:
66 return "Invalid sample profile data (bad magic)";
67 case sampleprof_error::unsupported_version:
68 return "Unsupported sample profile format version";
69 case sampleprof_error::too_large:
70 return "Too much profile data";
71 case sampleprof_error::truncated:
72 return "Truncated profile data";
73 case sampleprof_error::malformed:
74 return "Malformed sample profile data";
75 case sampleprof_error::unrecognized_format:
76 return "Unrecognized sample profile encoding format";
77 case sampleprof_error::unsupported_writing_format:
78 return "Profile encoding format unsupported for writing operations";
79 case sampleprof_error::truncated_name_table:
80 return "Truncated function name table";
81 case sampleprof_error::not_implemented:
82 return "Unimplemented feature";
83 case sampleprof_error::counter_overflow:
84 return "Counter overflow";
85 case sampleprof_error::ostream_seek_unsupported:
86 return "Ostream does not support seek";
87 case sampleprof_error::uncompress_failed:
88 return "Uncompress failure";
89 case sampleprof_error::zlib_unavailable:
90 return "Zlib is unavailable";
91 case sampleprof_error::hash_mismatch:
92 return "Function hash mismatch";
93 }
94 llvm_unreachable("A value of sampleprof_error has no message.");
95 }
96};
97
98} // end anonymous namespace
99
100const std::error_category &llvm::sampleprof_category() {
101 static SampleProfErrorCategoryType ErrorCategory;
102 return ErrorCategory;
103}
104
106 OS << LineOffset;
107 if (Discriminator > 0)
108 OS << "." << Discriminator;
109}
110
112 const LineLocation &Loc) {
113 Loc.print(OS);
114 return OS;
115}
116
117/// Merge the samples in \p Other into this record.
118/// Optionally scale sample counts by \p Weight.
120 uint64_t Weight) {
121 sampleprof_error Result;
122 Result = addSamples(Other.getSamples(), Weight);
123 for (const auto &I : Other.getCallTargets()) {
124 MergeResult(Result, addCalledTarget(I.first, I.second, Weight));
125 }
126 return Result;
127}
128
129#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
131#endif
132
133/// Print the sample record to the stream \p OS indented by \p Indent.
134void SampleRecord::print(raw_ostream &OS, unsigned Indent) const {
135 OS << NumSamples;
136 if (hasCalls()) {
137 OS << ", calls:";
138 for (const auto &I : getSortedCallTargets())
139 OS << " " << I.first << ":" << I.second;
140 }
141 OS << "\n";
142}
143
144#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
146#endif
147
149 const SampleRecord &Sample) {
150 Sample.print(OS, 0);
151 return OS;
152}
153
154/// Print the samples collected for a function on stream \p OS.
155void FunctionSamples::print(raw_ostream &OS, unsigned Indent) const {
156 if (getFunctionHash())
157 OS << "CFG checksum " << getFunctionHash() << "\n";
158
159 OS << TotalSamples << ", " << TotalHeadSamples << ", " << BodySamples.size()
160 << " sampled lines\n";
161
162 OS.indent(Indent);
163 if (!BodySamples.empty()) {
164 OS << "Samples collected in the function's body {\n";
165 SampleSorter<LineLocation, SampleRecord> SortedBodySamples(BodySamples);
166 for (const auto &SI : SortedBodySamples.get()) {
167 OS.indent(Indent + 2);
168 OS << SI->first << ": " << SI->second;
169 }
170 OS.indent(Indent);
171 OS << "}\n";
172 } else {
173 OS << "No samples collected in the function's body\n";
174 }
175
176 OS.indent(Indent);
177 if (!CallsiteSamples.empty()) {
178 OS << "Samples collected in inlined callsites {\n";
180 CallsiteSamples);
181 for (const auto &CS : SortedCallsiteSamples.get()) {
182 for (const auto &FS : CS->second) {
183 OS.indent(Indent + 2);
184 OS << CS->first << ": inlined callee: " << FS.second.getFunction()
185 << ": ";
186 FS.second.print(OS, Indent + 4);
187 }
188 }
189 OS.indent(Indent);
190 OS << "}\n";
191 } else {
192 OS << "No inlined callsites in this function\n";
193 }
194}
195
197 const FunctionSamples &FS) {
198 FS.print(OS);
199 return OS;
200}
201
203 const SampleProfileMap &ProfileMap,
204 std::vector<NameFunctionSamples> &SortedProfiles) {
205 for (const auto &I : ProfileMap) {
206 SortedProfiles.push_back(std::make_pair(I.first, &I.second));
207 }
208 llvm::stable_sort(SortedProfiles, [](const NameFunctionSamples &A,
209 const NameFunctionSamples &B) {
210 if (A.second->getTotalSamples() == B.second->getTotalSamples())
211 return A.second->getContext() < B.second->getContext();
212 return A.second->getTotalSamples() > B.second->getTotalSamples();
213 });
214}
215
217 return (DIL->getLine() - DIL->getScope()->getSubprogram()->getLine()) &
218 0xffff;
219}
220
222 bool ProfileIsFS) {
224 // In a pseudo-probe based profile, a callsite is simply represented by the
225 // ID of the probe associated with the call instruction. The probe ID is
226 // encoded in the Discriminator field of the call instruction's debug
227 // metadata.
229 DIL->getDiscriminator()),
230 0);
231 } else {
232 unsigned Discriminator =
233 ProfileIsFS ? DIL->getDiscriminator() : DIL->getBaseDiscriminator();
234 return LineLocation(FunctionSamples::getOffset(DIL), Discriminator);
235 }
236}
237
239 const DILocation *DIL, SampleProfileReaderItaniumRemapper *Remapper) const {
240 assert(DIL);
242
243 const DILocation *PrevDIL = DIL;
244 for (DIL = DIL->getInlinedAt(); DIL; DIL = DIL->getInlinedAt()) {
245 // Use C++ linkage name if possible.
246 StringRef Name = PrevDIL->getScope()->getSubprogram()->getLinkageName();
247 if (Name.empty())
248 Name = PrevDIL->getScope()->getSubprogram()->getName();
251 Name);
252 PrevDIL = DIL;
253 }
254
255 if (S.size() == 0)
256 return this;
257 const FunctionSamples *FS = this;
258 for (int i = S.size() - 1; i >= 0 && FS != nullptr; i--) {
259 FS = FS->findFunctionSamplesAt(S[i].first, S[i].second, Remapper);
260 }
261 return FS;
262}
263
265 NameSet.insert(getFunction());
266 for (const auto &BS : BodySamples)
267 for (const auto &TS : BS.second.getCallTargets())
268 NameSet.insert(TS.first);
269
270 for (const auto &CS : CallsiteSamples) {
271 for (const auto &NameFS : CS.second) {
272 NameSet.insert(NameFS.first);
273 NameFS.second.findAllNames(NameSet);
274 }
275 }
276}
277
279 const LineLocation &Loc, StringRef CalleeName,
280 SampleProfileReaderItaniumRemapper *Remapper) const {
281 CalleeName = getCanonicalFnName(CalleeName);
282
283 auto iter = CallsiteSamples.find(mapIRLocToProfileLoc(Loc));
284 if (iter == CallsiteSamples.end())
285 return nullptr;
286 auto FS = iter->second.find(getRepInFormat(CalleeName));
287 if (FS != iter->second.end())
288 return &FS->second;
289 if (Remapper) {
290 if (auto NameInProfile = Remapper->lookUpNameInProfile(CalleeName)) {
291 auto FS = iter->second.find(getRepInFormat(*NameInProfile));
292 if (FS != iter->second.end())
293 return &FS->second;
294 }
295 }
296 // If we cannot find exact match of the callee name, return the FS with
297 // the max total count. Only do this when CalleeName is not provided,
298 // i.e., only for indirect calls.
299 if (!CalleeName.empty())
300 return nullptr;
301 uint64_t MaxTotalSamples = 0;
302 const FunctionSamples *R = nullptr;
303 for (const auto &NameFS : iter->second)
304 if (NameFS.second.getTotalSamples() >= MaxTotalSamples) {
305 MaxTotalSamples = NameFS.second.getTotalSamples();
306 R = &NameFS.second;
307 }
308 return R;
309}
310
311#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
313#endif
314
315std::error_code ProfileSymbolList::read(const uint8_t *Data,
316 uint64_t ListSize) {
317 const char *ListStart = reinterpret_cast<const char *>(Data);
318 uint64_t Size = 0;
319 uint64_t StrNum = 0;
320 while (Size < ListSize && StrNum < ProfileSymbolListCutOff) {
321 StringRef Str(ListStart + Size);
322 add(Str);
323 Size += Str.size() + 1;
324 StrNum++;
325 }
326 if (Size != ListSize && StrNum != ProfileSymbolListCutOff)
329}
330
332 uint64_t ColdCountThreshold, bool TrimColdContext, bool MergeColdContext,
333 uint32_t ColdContextFrameLength, bool TrimBaseProfileOnly) {
334 if (!TrimColdContext && !MergeColdContext)
335 return;
336
337 // Nothing to merge if sample threshold is zero
338 if (ColdCountThreshold == 0)
339 return;
340
341 // Trimming base profiles only is mainly to honor the preinliner decsion. When
342 // MergeColdContext is true preinliner decsion is not honored anyway so turn
343 // off TrimBaseProfileOnly.
344 if (MergeColdContext)
345 TrimBaseProfileOnly = false;
346
347 // Filter the cold profiles from ProfileMap and move them into a tmp
348 // container
349 std::vector<std::pair<hash_code, const FunctionSamples *>> ColdProfiles;
350 for (const auto &I : ProfileMap) {
351 const SampleContext &Context = I.second.getContext();
352 const FunctionSamples &FunctionProfile = I.second;
353 if (FunctionProfile.getTotalSamples() < ColdCountThreshold &&
354 (!TrimBaseProfileOnly || Context.isBaseContext()))
355 ColdProfiles.emplace_back(I.first, &I.second);
356 }
357
358 // Remove the cold profile from ProfileMap and merge them into
359 // MergedProfileMap by the last K frames of context
360 SampleProfileMap MergedProfileMap;
361 for (const auto &I : ColdProfiles) {
362 if (MergeColdContext) {
363 auto MergedContext = I.second->getContext().getContextFrames();
364 if (ColdContextFrameLength < MergedContext.size())
365 MergedContext = MergedContext.take_back(ColdContextFrameLength);
366 // Need to set MergedProfile's context here otherwise it will be lost.
367 FunctionSamples &MergedProfile = MergedProfileMap.Create(MergedContext);
368 MergedProfile.merge(*I.second);
369 }
370 ProfileMap.erase(I.first);
371 }
372
373 // Move the merged profiles into ProfileMap;
374 for (const auto &I : MergedProfileMap) {
375 // Filter the cold merged profile
376 if (TrimColdContext && I.second.getTotalSamples() < ColdCountThreshold &&
377 ProfileMap.find(I.second.getContext()) == ProfileMap.end())
378 continue;
379 // Merge the profile if the original profile exists, otherwise just insert
380 // as a new profile. If inserted as a new profile from MergedProfileMap, it
381 // already has the right context.
382 auto Ret = ProfileMap.emplace(I.second.getContext(), FunctionSamples());
383 FunctionSamples &OrigProfile = Ret.first->second;
384 OrigProfile.merge(I.second);
385 }
386}
387
389 // Sort the symbols before output. If doing compression.
390 // It will make the compression much more effective.
391 std::vector<StringRef> SortedList(Syms.begin(), Syms.end());
392 llvm::sort(SortedList);
393
394 std::string OutputString;
395 for (auto &Sym : SortedList) {
396 OutputString.append(Sym.str());
397 OutputString.append(1, '\0');
398 }
399
400 OS << OutputString;
402}
403
405 OS << "======== Dump profile symbol list ========\n";
406 std::vector<StringRef> SortedList(Syms.begin(), Syms.end());
407 llvm::sort(SortedList);
408
409 for (auto &Sym : SortedList)
410 OS << Sym << "\n";
411}
412
415 FunctionId CalleeName) {
416 uint64_t Hash = FunctionSamples::getCallSiteHash(CalleeName, CallSite);
417 auto It = AllChildFrames.find(Hash);
418 if (It != AllChildFrames.end()) {
419 assert(It->second.FuncName == CalleeName &&
420 "Hash collision for child context node");
421 return &It->second;
422 }
423
424 AllChildFrames[Hash] = FrameNode(CalleeName, nullptr, CallSite);
425 return &AllChildFrames[Hash];
426}
427
429 : ProfileMap(Profiles) {
430 for (auto &FuncSample : Profiles) {
431 FunctionSamples *FSamples = &FuncSample.second;
432 auto *NewNode = getOrCreateContextPath(FSamples->getContext());
433 assert(!NewNode->FuncSamples && "New node cannot have sample profile");
434 NewNode->FuncSamples = FSamples;
435 }
436}
437
439ProfileConverter::getOrCreateContextPath(const SampleContext &Context) {
440 auto Node = &RootFrame;
441 LineLocation CallSiteLoc(0, 0);
442 for (auto &Callsite : Context.getContextFrames()) {
443 Node = Node->getOrCreateChildFrame(CallSiteLoc, Callsite.Func);
444 CallSiteLoc = Callsite.Location;
445 }
446 return Node;
447}
448
450 // Process each child profile. Add each child profile to callsite profile map
451 // of the current node `Node` if `Node` comes with a profile. Otherwise
452 // promote the child profile to a standalone profile.
453 auto *NodeProfile = Node.FuncSamples;
454 for (auto &It : Node.AllChildFrames) {
455 auto &ChildNode = It.second;
456 convertCSProfiles(ChildNode);
457 auto *ChildProfile = ChildNode.FuncSamples;
458 if (!ChildProfile)
459 continue;
460 SampleContext OrigChildContext = ChildProfile->getContext();
461 uint64_t OrigChildContextHash = OrigChildContext.getHashCode();
462 // Reset the child context to be contextless.
463 ChildProfile->getContext().setFunction(OrigChildContext.getFunction());
464 if (NodeProfile) {
465 // Add child profile to the callsite profile map.
466 auto &SamplesMap = NodeProfile->functionSamplesAt(ChildNode.CallSiteLoc);
467 SamplesMap.emplace(OrigChildContext.getFunction(), *ChildProfile);
468 NodeProfile->addTotalSamples(ChildProfile->getTotalSamples());
469 // Remove the corresponding body sample for the callsite and update the
470 // total weight.
471 auto Count = NodeProfile->removeCalledTargetAndBodySample(
472 ChildNode.CallSiteLoc.LineOffset, ChildNode.CallSiteLoc.Discriminator,
473 OrigChildContext.getFunction());
474 NodeProfile->removeTotalSamples(Count);
475 }
476
477 uint64_t NewChildProfileHash = 0;
478 // Separate child profile to be a standalone profile, if the current parent
479 // profile doesn't exist. This is a duplicating operation when the child
480 // profile is already incorporated into the parent which is still useful and
481 // thus done optionally. It is seen that duplicating context profiles into
482 // base profiles improves the code quality for thinlto build by allowing a
483 // profile in the prelink phase for to-be-fully-inlined functions.
484 if (!NodeProfile) {
485 ProfileMap[ChildProfile->getContext()].merge(*ChildProfile);
486 NewChildProfileHash = ChildProfile->getContext().getHashCode();
487 } else if (GenerateMergedBaseProfiles) {
488 ProfileMap[ChildProfile->getContext()].merge(*ChildProfile);
489 NewChildProfileHash = ChildProfile->getContext().getHashCode();
490 auto &SamplesMap = NodeProfile->functionSamplesAt(ChildNode.CallSiteLoc);
491 SamplesMap[ChildProfile->getFunction()].getContext().setAttribute(
493 }
494
495 // Remove the original child profile. Check if MD5 of new child profile
496 // collides with old profile, in this case the [] operator already
497 // overwritten it without the need of erase.
498 if (NewChildProfileHash != OrigChildContextHash)
499 ProfileMap.erase(OrigChildContextHash);
500 }
501}
502
aarch64 promote const
static GCRegistry::Add< OcamlGC > B("ocaml", "ocaml 3.10-compatible GC")
static GCRegistry::Add< ErlangGC > A("erlang", "erlang-compatible garbage collector")
static GCRegistry::Add< CoreCLRGC > E("coreclr", "CoreCLR-compatible GC")
#define LLVM_DUMP_METHOD
Mark debug helper function definitions like dump() that should not be stripped from debug builds.
Definition: Compiler.h:529
std::string Name
uint64_t Size
Symbol * Sym
Definition: ELF_riscv.cpp:479
#define I(x, y, z)
Definition: MD5.cpp:58
static cl::opt< unsigned > ColdCountThreshold("mfs-count-threshold", cl::desc("Minimum number of times a block must be executed to be retained."), cl::init(1), cl::Hidden)
LLVMContext & Context
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
static const char * name
Definition: SMEABIPass.cpp:49
raw_pwrite_stream & OS
static cl::opt< bool > GenerateMergedBaseProfiles("generate-merged-base-profiles", cl::desc("When generating nested context-sensitive profiles, always " "generate extra base profile for function with all its context " "profiles merged into it."))
static cl::opt< uint64_t > ProfileSymbolListCutOff("profile-symbol-list-cutoff", cl::Hidden, cl::init(-1), cl::desc("Cutoff value about how many symbols in profile symbol list " "will be used. This is very useful for performance debugging"))
Debug location.
unsigned getBaseDiscriminator() const
Returns the base discriminator stored in the discriminator.
Implements a dense probed hash-table based set.
Definition: DenseSet.h:271
size_t size() const
Definition: SmallVector.h:91
reference emplace_back(ArgTypes &&... Args)
Definition: SmallVector.h:950
This is a 'vector' (really, a variable-sized array), optimized for the case when the array is small.
Definition: SmallVector.h:1209
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:50
constexpr bool empty() const
empty - Check if the string is empty.
Definition: StringRef.h:134
std::pair< iterator, bool > insert(const ValueT &V)
Definition: DenseSet.h:206
This class implements an extremely fast bulk output stream that can only output to a stream.
Definition: raw_ostream.h:52
raw_ostream & indent(unsigned NumSpaces)
indent - Insert 'NumSpaces' spaces.
This class represents a function that is read from a sample profile.
Definition: FunctionId.h:36
Representation of the samples collected for a function.
Definition: SampleProf.h:744
static uint64_t getCallSiteHash(FunctionId Callee, const LineLocation &Callsite)
Returns a unique hash code for a combination of a callsite location and the callee function name.
Definition: SampleProf.h:1159
const LineLocation & mapIRLocToProfileLoc(const LineLocation &IRLoc) const
Definition: SampleProf.h:859
FunctionId getFunction() const
Return the function name.
Definition: SampleProf.h:1069
const FunctionSamples * findFunctionSamplesAt(const LineLocation &Loc, StringRef CalleeName, SampleProfileReaderItaniumRemapper *Remapper) const
Returns a pointer to FunctionSamples at the given callsite location Loc with callee CalleeName.
Definition: SampleProf.cpp:278
static StringRef getCanonicalFnName(const Function &F)
Return the canonical name for a function, taking into account suffix elision policy attributes.
Definition: SampleProf.h:1085
void findAllNames(DenseSet< FunctionId > &NameSet) const
Definition: SampleProf.cpp:264
static unsigned getOffset(const DILocation *DIL)
Returns the line offset to the start line of the subprogram.
Definition: SampleProf.cpp:216
static bool ProfileIsFS
If this profile uses flow sensitive discriminators.
Definition: SampleProf.h:1196
SampleContext & getContext() const
Definition: SampleProf.h:1185
static bool HasUniqSuffix
Whether the profile contains any ".__uniq." suffix in a name.
Definition: SampleProf.h:1193
uint64_t getTotalSamples() const
Return the total number of samples collected inside the function.
Definition: SampleProf.h:932
void print(raw_ostream &OS=dbgs(), unsigned Indent=0) const
Print the samples collected for a function on stream OS.
Definition: SampleProf.cpp:155
sampleprof_error merge(const FunctionSamples &Other, uint64_t Weight=1)
Merge the samples in Other into this one.
Definition: SampleProf.h:996
static LineLocation getCallSiteIdentifier(const DILocation *DIL, bool ProfileIsFS=false)
Returns a unique call site identifier for a given debug location of a call instruction.
Definition: SampleProf.cpp:221
const FunctionSamples * findFunctionSamples(const DILocation *DIL, SampleProfileReaderItaniumRemapper *Remapper=nullptr) const
Get the FunctionSamples of the inline instance where DIL originates from.
Definition: SampleProf.cpp:238
static bool UseMD5
Whether the profile uses MD5 to represent string.
Definition: SampleProf.h:1190
ProfileConverter(SampleProfileMap &Profiles)
Definition: SampleProf.cpp:428
std::error_code write(raw_ostream &OS)
Definition: SampleProf.cpp:388
void dump(raw_ostream &OS=dbgs()) const
Definition: SampleProf.cpp:404
void add(StringRef Name, bool copy=false)
copy indicates whether we need to copy the underlying memory for the input Name.
Definition: SampleProf.h:1510
std::error_code read(const uint8_t *Data, uint64_t ListSize)
Definition: SampleProf.cpp:315
void trimAndMergeColdContextProfiles(uint64_t ColdCountThreshold, bool TrimColdContext, bool MergeColdContext, uint32_t ColdContextFrameLength, bool TrimBaseProfileOnly)
Definition: SampleProf.cpp:331
uint64_t getHashCode() const
Definition: SampleProf.h:638
FunctionId getFunction() const
Definition: SampleProf.h:616
This class provides operator overloads to the map container using MD5 as the key type,...
Definition: SampleProf.h:1306
mapped_type & Create(const SampleContext &Ctx)
Definition: SampleProf.h:1310
size_t erase(const SampleContext &Ctx)
Definition: SampleProf.h:1327
SampleProfileReaderItaniumRemapper remaps the profile data from a sample profile data reader,...
std::optional< StringRef > lookUpNameInProfile(StringRef FunctionName)
Return the equivalent name in the profile for FunctionName if it exists.
Representation of a single sample record.
Definition: SampleProf.h:325
bool hasCalls() const
Return true if this sample record contains function calls.
Definition: SampleProf.h:390
sampleprof_error merge(const SampleRecord &Other, uint64_t Weight=1)
Merge the samples in Other into this record.
Definition: SampleProf.cpp:119
sampleprof_error addSamples(uint64_t S, uint64_t Weight=1)
Increment the number of samples for this record by S.
Definition: SampleProf.h:346
const SortedCallTargetSet getSortedCallTargets() const
Definition: SampleProf.h:394
void print(raw_ostream &OS, unsigned Indent) const
Print the sample record to the stream OS indented by Indent.
Definition: SampleProf.cpp:134
sampleprof_error addCalledTarget(FunctionId F, uint64_t S, uint64_t Weight=1)
Add called function F with samples S.
Definition: SampleProf.h:367
Sort a LocationT->SampleT map by LocationT.
Definition: SampleProf.h:1346
const SamplesWithLocList & get() const
Definition: SampleProf.h:1359
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
initializer< Ty > init(const Ty &Val)
Definition: CommandLine.h:450
static FunctionId getRepInFormat(StringRef Name)
Get the proper representation of a string according to whether the current Format uses MD5 to represe...
Definition: SampleProf.h:1292
void sortFuncProfiles(const SampleProfileMap &ProfileMap, std::vector< NameFunctionSamples > &SortedProfiles)
Definition: SampleProf.cpp:202
std::pair< hash_code, const FunctionSamples * > NameFunctionSamples
Definition: SampleProf.h:1337
raw_ostream & operator<<(raw_ostream &OS, const FunctionId &Obj)
Definition: FunctionId.h:159
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
void stable_sort(R &&Range)
Definition: STLExtras.h:1975
sampleprof_error
Definition: SampleProf.h:47
void sort(IteratorTy Start, IteratorTy End)
Definition: STLExtras.h:1656
raw_ostream & dbgs()
dbgs() - This returns a reference to a raw_ostream for debugging messages.
Definition: Debug.cpp:163
@ Other
Any other memory.
const std::error_category & sampleprof_category()
Definition: SampleProf.cpp:100
sampleprof_error MergeResult(sampleprof_error &Accumulator, sampleprof_error Result)
Definition: SampleProf.h:69
static uint32_t extractProbeIndex(uint32_t Value)
Definition: PseudoProbe.h:61
Represents the relative location of an instruction.
Definition: SampleProf.h:280
void print(raw_ostream &OS) const
Definition: SampleProf.cpp:105
FrameNode * getOrCreateChildFrame(const LineLocation &CallSite, FunctionId CalleeName)
Definition: SampleProf.cpp:414
std::map< uint64_t, FrameNode > AllChildFrames
Definition: SampleProf.h:1405