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[PDB] Initialize the std::array<ulittle32_t> used for the gsi bitmap

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With ASan, we would write about 512 bytes of malloc fill value to the
PDB, with some random bits ORed in here and there. Dumping the PDB would
always fail reliably.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309331 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Kleckner 2017-07-27 23:13:05 +00:00
parent 961f725e69
commit 1a8dc59306
1 changed files with 2 additions and 0 deletions
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2
lib/DebugInfo/PDB/Native/PublicsStreamBuilder.cpp
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@ -201,6 +201,8 @@ void GSIHashTableBuilder::addSymbols(ArrayRef<CVSymbol> Symbols) {
// Compute the three tables: the hash records in bucket and chain order, the
// bucket presence bitmap, and the bucket chain start offsets.
HashRecords.reserve(Symbols.size());
for (ulittle32_t &Word : HashBitmap)
Word = 0;
for (size_t BucketIdx = 0; BucketIdx < IPHR_HASH + 1; ++BucketIdx) {
auto &Bucket = TmpBuckets[BucketIdx];
if (Bucket.empty())