diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/DebugInfo/PDB/Native/HashTable.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/llvm/lib/DebugInfo/PDB/Native/HashTable.cpp b/llvm/lib/DebugInfo/PDB/Native/HashTable.cpp index 5ed0acc8fd7..cfabc9cd1ad 100644 --- a/llvm/lib/DebugInfo/PDB/Native/HashTable.cpp +++ b/llvm/lib/DebugInfo/PDB/Native/HashTable.cpp @@ -46,16 +46,18 @@ Error llvm::pdb::readSparseBitVector(BinaryStreamReader &Stream, Error llvm::pdb::writeSparseBitVector(BinaryStreamWriter &Writer, SparseBitVector<> &Vec) { + constexpr int BitsPerWord = 8 * sizeof(uint32_t); + int ReqBits = Vec.find_last() + 1; - uint32_t NumWords = alignTo(ReqBits, sizeof(uint32_t)) / sizeof(uint32_t); - if (auto EC = Writer.writeInteger(NumWords)) + uint32_t ReqWords = alignTo(ReqBits, BitsPerWord) / BitsPerWord; + if (auto EC = Writer.writeInteger(ReqWords)) return joinErrors( std::move(EC), make_error<RawError>(raw_error_code::corrupt_file, "Could not write linear map number of words")); uint32_t Idx = 0; - for (uint32_t I = 0; I != NumWords; ++I) { + for (uint32_t I = 0; I != ReqWords; ++I) { uint32_t Word = 0; for (uint32_t WordIdx = 0; WordIdx < 32; ++WordIdx, ++Idx) { if (Vec.test(Idx)) |
