[PDB] Initialize the std::array<ulittle32_t> used for the gsi bitmap
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.
llvm-svn: 309331
diff --git a/llvm/lib/DebugInfo/PDB/Native/PublicsStreamBuilder.cpp b/llvm/lib/DebugInfo/PDB/Native/PublicsStreamBuilder.cpp
index 473cddd..9b807c1 100644
--- a/llvm/lib/DebugInfo/PDB/Native/PublicsStreamBuilder.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/PublicsStreamBuilder.cpp
@@ -201,6 +201,8 @@
// 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())