[llvm] [TableGen][DecoderEmitter] Report all decoding conflicts (PR #157847)

[Sergei Barannikov via llvm-commits]

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@@ -1592,7 +1599,7 @@ void FilterChooser::doFilter() {
   // Print out useful conflict information for postmortem analysis.
   errs() << "Decoding Conflict:\n";
   dump();
-  PrintFatalError("Decoding conflict encountered");
+  HasConflict = true;
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s-barannikov wrote:

Alternatively, we could use PrintError here and then check the global `ErrorsPrinted` variable instead of introducing `HasConflict`.
Another alternative is to emit the tables anyway (without conflicting encodings).


https://github.com/llvm/llvm-project/pull/157847