[llvm] [InstCombine] Fold binary operator into select, when one of the opera… (PR #166241)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp --diff_from_common_commit
``````````

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``````````diff
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp b/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
index e45cc7b0f..7f78c1349 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
@@ -370,13 +370,11 @@ static Instruction *foldBinOpIntoSelectWhenConditionIsOperand(Instruction &I) {
                               ConstantInt::get(Ty, SelLeft->getValue() ^ 1),
                               ConstantInt::get(Ty, SelRight->getValue() ^ 0));
   case Instruction::Add:
-    return SelectInst::Create(CommonInput,
-                              ConstantInt::get(Ty, SelLeft->getValue() + 1),
-                              SelRight);
+    return SelectInst::Create(
+        CommonInput, ConstantInt::get(Ty, SelLeft->getValue() + 1), SelRight);
   case Instruction::Sub:
-    return SelectInst::Create(CommonInput,
-                              ConstantInt::get(Ty, SelLeft->getValue() - 1),
-                              SelRight);
+    return SelectInst::Create(
+        CommonInput, ConstantInt::get(Ty, SelLeft->getValue() - 1), SelRight);
   case Instruction::Mul:
     return SelectInst::Create(CommonInput,
                               ConstantInt::get(Ty, SelLeft->getValue()),
@@ -2510,7 +2508,6 @@ Instruction *InstCombinerImpl::visitAnd(BinaryOperator &I) {
     return SelectInst::Create(Cmp, ConstantInt::getNullValue(Ty), Y);
   }
 
-
   if (Instruction *Res = foldBinOpIntoSelectWhenConditionIsOperand(I))
     return Res;
 
@@ -4167,7 +4164,6 @@ Instruction *InstCombinerImpl::visitOr(BinaryOperator &I) {
   if (Instruction *Res = foldBinOpIntoSelectWhenConditionIsOperand(I))
     return Res;
 
-
   // If the operands have no common bits set:
   // or (mul X, Y), X --> add (mul X, Y), X --> mul X, (Y + 1)
   if (match(&I, m_c_DisjointOr(m_OneUse(m_Mul(m_Value(X), m_Value(Y))),
@@ -5271,7 +5267,6 @@ Instruction *InstCombinerImpl::visitXor(BinaryOperator &I) {
   if (Instruction *Res = foldBinOpIntoSelectWhenConditionIsOperand(I))
     return Res;
 
-
   // Fold (X & M) ^ (Y & ~M) -> (X & M) | (Y & ~M)
   // This it a special case in haveNoCommonBitsSet, but the computeKnownBits
   // calls in there are unnecessary as SimplifyDemandedInstructionBits should

``````````

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https://github.com/llvm/llvm-project/pull/166241