[llvm] [InstCombine] Add one-use limitation to box multiply fold (PR #72876)

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git-clang-format --diff c4c52d4199e13125fd9560f9f3b2d8a6bf2582f2 76097e23f035d2c3e12fa20ea5edd00f1a43f86f -- llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
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View the diff from clang-format here.
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diff --git a/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp b/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
index e7e9dfdb7a..fb4e74e5b0 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
@@ -1405,7 +1405,7 @@ static Instruction *foldBoxMultiply(BinaryOperator &I) {
   // ResLo = (CrossSum << HalfBits) + (YLo * XLo)
   Value *XLo, *YLo;
   Value *CrossSum;
-  
+
   // Checking the operands of I is used in no more than one place,
   // which can not be deleted, cause a mul instruction has far more weight than
   // add and shl instruction in IR, thus this method cannot achieve the goal of

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https://github.com/llvm/llvm-project/pull/72876