[llvm] [TableGen][DecoderEmitter] Rework table construction/emission (PR #155889)

[via llvm-commits]

github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

<details>
<summary>
You can test this locally with the following command:
</summary>

``````````bash
git-clang-format --diff origin/main HEAD --extensions h,cpp -- llvm/include/llvm/MC/MCDecoderOps.h llvm/utils/TableGen/DecoderEmitter.cpp
``````````

:warning:
The reproduction instructions above might return results for more than one PR
in a stack if you are using a stacked PR workflow. You can limit the results by
changing `origin/main` to the base branch/commit you want to compare against.
:warning:

</details>

<details>
<summary>
View the diff from clang-format here.
</summary>

``````````diff
diff --git a/llvm/utils/TableGen/DecoderEmitter.cpp b/llvm/utils/TableGen/DecoderEmitter.cpp
index 9c98fa390..78c80009f 100644
--- a/llvm/utils/TableGen/DecoderEmitter.cpp
+++ b/llvm/utils/TableGen/DecoderEmitter.cpp
@@ -2643,7 +2643,7 @@ template <typename T> constexpr uint32_t InsnBitWidth = 0;
       std::unique_ptr<DecoderTreeNode> Root =
           TreeBuilder.buildTree(EncodingIDs);
       // Skip emitting table entries if a conflict has been detected.
-      HasConflict= TreeBuilder.hasConflict();
+      HasConflict = TreeBuilder.hasConflict();
       if (HasConflict)
         continue;
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/155889