[llvm] [lldb] Fix size in bytes of type DIEs when size in bits is not a multiple of 8 (PR #69741)

[Augusto Noronha via llvm-commits]

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@@ -2866,8 +2879,12 @@ void DWARFASTParserClang::ParseSingleMember(
   // Get the parent byte size so we can verify any members will fit
   const uint64_t parent_byte_size =
       parent_die.GetAttributeValueAsUnsigned(DW_AT_byte_size, UINT64_MAX);
-  const uint64_t parent_bit_size =
-      parent_byte_size == UINT64_MAX ? UINT64_MAX : parent_byte_size * 8;
+  uint64_t parent_bit_size;
+  if (parent_byte_size != UINT64_MAX)
+    parent_bit_size = parent_byte_size * 8;
+  else
+    parent_bit_size =
+        parent_die.GetAttributeValueAsUnsigned(DW_AT_bit_size, UINT64_MAX);
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augusto2112 wrote:

Hmm, I'll definitely have a downstream test that exercises this behavior, but I don't think on the clang side this would be easy to test, do you have any suggestions on how to do that?

https://github.com/llvm/llvm-project/pull/69741