[llvm] [llvm][DebugInfo] Require non-null debug metadata fields when writing bitcode (PR #198441)

[Michael Buch via llvm-commits]

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@@ -2182,7 +2182,7 @@ void ModuleBitcodeWriter::writeDICompileUnit(const DICompileUnit *N,
   if (Lang.hasVersionedName())
     Record.back() ^= (uint64_t(1) << 63);
 
-  Record.push_back(VE.getMetadataOrNullID(N->getFile()));
+  Record.push_back(VE.getMetadataID(N->getFile()) + 1);
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Michael137 wrote:

Yea lets only change what was relevant to https://github.com/llvm/llvm-project/pull/196299

https://github.com/llvm/llvm-project/pull/198441