[compiler-rt] DO_NOT_MERGE (PR #66682)

[Florian Mayer via llvm-commits]

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@@ -614,42 +639,39 @@ void BaseReport::PrintAddressDescription() const {
     num_descriptions_printed++;
   }
 
-  hwasanThreadList().VisitAllLiveThreads([&](Thread *t) {
-    // Scan all threads' ring buffers to find if it's a heap-use-after-free.
-    HeapAllocationRecord har;
-    uptr ring_index, num_matching_addrs, num_matching_addrs_4b;
-    if (FindHeapAllocation(t->heap_allocations(), tagged_addr, &har,
-                           &ring_index, &num_matching_addrs,
-                           &num_matching_addrs_4b)) {
-      Printf("%s", d.Error());
-      Printf("\nCause: use-after-free\n");
-      Printf("%s", d.Location());
-      Printf("%p is located %zd bytes inside a %zd-byte region [%p,%p)\n",
-             untagged_addr, untagged_addr - UntagAddr(har.tagged_addr),
-             har.requested_size, UntagAddr(har.tagged_addr),
-             UntagAddr(har.tagged_addr) + har.requested_size);
-      Printf("%s", d.Allocation());
-      Printf("freed by thread T%u here:\n", t->unique_id());
-      Printf("%s", d.Default());
-      GetStackTraceFromId(har.free_context_id).Print();
-
-      Printf("%s", d.Allocation());
-      Printf("previously allocated by thread T%u here:\n", har.alloc_thread_id);
-      Printf("%s", d.Default());
-      GetStackTraceFromId(har.alloc_context_id).Print();
-
-      // Print a developer note: the index of this heap object
-      // in the thread's deallocation ring buffer.
-      Printf("hwasan_dev_note_heap_rb_distance: %zd %zd\n", ring_index + 1,
-             flags()->heap_history_size);
-      Printf("hwasan_dev_note_num_matching_addrs: %zd\n", num_matching_addrs);
-      Printf("hwasan_dev_note_num_matching_addrs_4b: %zd\n",
-             num_matching_addrs_4b);
-
-      t->Announce();
-      num_descriptions_printed++;
-    }
-  });
+  for (uptr i = 0; i < heap_allocations_count; ++i) {
+    auto &ha = heap_allocations[i];
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fmayer wrote:

I think this can be `const`

https://github.com/llvm/llvm-project/pull/66682