[llvm] [GISel] Fix #77762: extend correct source registers in combiner helper rule extend_through_phis (PR #77765)

[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 b7770befee37feca3d732d6daf9513c62f75c5f0 b65b2466b61d26f76d84f928067e72231d7f417d -- llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
``````````

</details>

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

``````````diff
diff --git a/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
index 866774bda3..34849d17b7 100644
--- a/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
@@ -3952,8 +3952,7 @@ void CombinerHelper::applyExtendThroughPhis(MachineInstr &MI,
 
     Builder.setInsertPt(*SrcMI->getParent(), InsertPt);
     Builder.setDebugLoc(MI.getDebugLoc());
-    auto NewExt = Builder.buildExtOrTrunc(ExtMI->getOpcode(), ExtTy,
-                                          SrcReg);
+    auto NewExt = Builder.buildExtOrTrunc(ExtMI->getOpcode(), ExtTy, SrcReg);
     OldToNewSrcMap[SrcMI] = NewExt;
   }
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/77765