diff options
Diffstat (limited to '')
| -rw-r--r-- | build/build-clang/partial-revert-llvmorg-16-init-15775-g1ae7d83803e4.patch | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/build/build-clang/partial-revert-llvmorg-16-init-15775-g1ae7d83803e4.patch b/build/build-clang/partial-revert-llvmorg-16-init-15775-g1ae7d83803e4.patch new file mode 100644 index 0000000000..8f68583b51 --- /dev/null +++ b/build/build-clang/partial-revert-llvmorg-16-init-15775-g1ae7d83803e4.patch @@ -0,0 +1,106 @@ +The change in https://github.com/llvm/llvm-project/commit/1ae7d83803e45f6053ec6a606f259653846926b8 +makes rustc unable to read the profiles that `llvm-profdata merge` outputs, +further causing some problems (e.g. bug 1811960). + +diff --git a/llvm/lib/ProfileData/InstrProfWriter.cpp b/llvm/lib/ProfileData/InstrProfWriter.cpp +index af3c27ebac76..a6da1e0f3aec 100644 +--- a/llvm/lib/ProfileData/InstrProfWriter.cpp ++++ b/llvm/lib/ProfileData/InstrProfWriter.cpp +@@ -291,10 +291,6 @@ void InstrProfWriter::mergeRecordsFromWriter(InstrProfWriter &&IPW, + for (auto &Func : I.getValue()) + addRecord(I.getKey(), Func.first, std::move(Func.second), 1, Warn); + +- BinaryIds.reserve(BinaryIds.size() + IPW.BinaryIds.size()); +- for (auto &I : IPW.BinaryIds) +- addBinaryIds(I); +- + MemProfFrameData.reserve(IPW.MemProfFrameData.size()); + for (auto &I : IPW.MemProfFrameData) { + // If we weren't able to add the frame mappings then it doesn't make sense +@@ -339,7 +335,6 @@ static void setSummary(IndexedInstrProf::Summary *TheSummary, + + Error InstrProfWriter::writeImpl(ProfOStream &OS) { + using namespace IndexedInstrProf; +- using namespace support; + + OnDiskChainedHashTableGenerator<InstrProfRecordWriterTrait> Generator; + +@@ -356,7 +351,7 @@ Error InstrProfWriter::writeImpl(ProfOStream &OS) { + // Write the header. + IndexedInstrProf::Header Header; + Header.Magic = IndexedInstrProf::Magic; +- Header.Version = IndexedInstrProf::ProfVersion::CurrentVersion; ++ Header.Version = IndexedInstrProf::ProfVersion::Version8; + if (static_cast<bool>(ProfileKind & InstrProfKind::IRInstrumentation)) + Header.Version |= VARIANT_MASK_IR_PROF; + if (static_cast<bool>(ProfileKind & InstrProfKind::ContextSensitive)) +@@ -396,12 +389,6 @@ Error InstrProfWriter::writeImpl(ProfOStream &OS) { + // profile contains memory profile information. + OS.write(0); + +- // Save the location of binary ids section. +- uint64_t BinaryIdSectionOffset = OS.tell(); +- // Reserve space for the BinaryIdOffset field to be patched later if this +- // profile contains binary ids. +- OS.write(0); +- + // Reserve space to write profile summary data. + uint32_t NumEntries = ProfileSummaryBuilder::DefaultCutoffs.size(); + uint32_t SummarySize = Summary::getSize(Summary::NumKinds, NumEntries); +@@ -478,43 +465,6 @@ Error InstrProfWriter::writeImpl(ProfOStream &OS) { + OS.patch(PatchItems, 3); + } + +- // BinaryIdSection has two parts: +- // 1. uint64_t BinaryIdsSectionSize +- // 2. list of binary ids that consist of: +- // a. uint64_t BinaryIdLength +- // b. uint8_t BinaryIdData +- // c. uint8_t Padding (if necessary) +- uint64_t BinaryIdSectionStart = OS.tell(); +- // Calculate size of binary section. +- uint64_t BinaryIdsSectionSize = 0; +- +- // Remove duplicate binary ids. +- llvm::sort(BinaryIds); +- BinaryIds.erase(std::unique(BinaryIds.begin(), BinaryIds.end()), +- BinaryIds.end()); +- +- for (auto BI : BinaryIds) { +- // Increment by binary id length data type size. +- BinaryIdsSectionSize += sizeof(uint64_t); +- // Increment by binary id data length, aligned to 8 bytes. +- BinaryIdsSectionSize += alignToPowerOf2(BI.size(), sizeof(uint64_t)); +- } +- // Write binary ids section size. +- OS.write(BinaryIdsSectionSize); +- +- for (auto BI : BinaryIds) { +- uint64_t BILen = BI.size(); +- // Write binary id length. +- OS.write(BILen); +- // Write binary id data. +- for (unsigned K = 0; K < BILen; K++) +- OS.writeByte(BI[K]); +- // Write padding if necessary. +- uint64_t PaddingSize = alignToPowerOf2(BILen, sizeof(uint64_t)) - BILen; +- for (unsigned K = 0; K < PaddingSize; K++) +- OS.writeByte(0); +- } +- + // Allocate space for data to be serialized out. + std::unique_ptr<IndexedInstrProf::Summary> TheSummary = + IndexedInstrProf::allocSummary(SummarySize); +@@ -537,11 +487,8 @@ Error InstrProfWriter::writeImpl(ProfOStream &OS) { + PatchItem PatchItems[] = { + // Patch the Header.HashOffset field. + {HashTableStartFieldOffset, &HashTableStart, 1}, +- // Patch the Header.MemProfOffset (=0 for profiles without MemProf +- // data). ++ // Patch the Header.MemProfOffset (=0 for profiles without MemProf data). + {MemProfSectionOffset, &MemProfSectionStart, 1}, +- // Patch the Header.BinaryIdSectionOffset. +- {BinaryIdSectionOffset, &BinaryIdSectionStart, 1}, + // Patch the summary data. + {SummaryOffset, reinterpret_cast<uint64_t *>(TheSummary.get()), + (int)(SummarySize / sizeof(uint64_t))}, |