[llvm] [X86] Fold vgf2p8affineqb XOR with splat constant into immediate (PR #179103)

[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 cpp -- llvm/lib/Target/X86/X86ISelLowering.cpp --diff_from_common_commit
``````````

: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/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 98d3d2d12..a730ce807 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -55869,8 +55869,7 @@ static SDValue combineXorWithGF2P8AFFINEQB(SDNode *N, SelectionDAG &DAG,
   APInt UndefElts;
   SmallVector<APInt, 16> EltBits;
   if (!getTargetConstantBitsFromNode(N1, ScalarSizeInBits, UndefElts, EltBits,
-                                     true,
-                                     false))
+                                     true, false))
     return SDValue();
 
   std::optional<APInt> SplatVal;
@@ -55892,8 +55891,8 @@ static SDValue combineXorWithGF2P8AFFINEQB(SDNode *N, SelectionDAG &DAG,
 
   uint64_t NewImm = OldImmNode->getZExtValue() ^ SplatVal->getZExtValue();
   SDLoc DL(N);
-  return DAG.getNode(X86ISD::GF2P8AFFINEQB, DL, N0.getValueType(), N0.getOperand(0),
-                     N0.getOperand(1),
+  return DAG.getNode(X86ISD::GF2P8AFFINEQB, DL, N0.getValueType(),
+                     N0.getOperand(0), N0.getOperand(1),
                      DAG.getTargetConstant(NewImm, DL, MVT::i8));
 }
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/179103