[llvm] [VectorCombine] Generalize foldBitOpOfBitcasts to support more cast operations (PR #148350)

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You can test this locally with the following command:
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``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions cpp -- llvm/lib/Transforms/Vectorize/VectorCombine.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Transforms/Vectorize/VectorCombine.cpp b/llvm/lib/Transforms/Vectorize/VectorCombine.cpp
index 2e9eda238..ff1532336 100644
--- a/llvm/lib/Transforms/Vectorize/VectorCombine.cpp
+++ b/llvm/lib/Transforms/Vectorize/VectorCombine.cpp
@@ -862,12 +862,12 @@ bool VectorCombine::foldBitOpOfCastops(Instruction &I) {
   // NewCost = bitlogic + cast
 
   // Calculate specific costs for each cast with instruction context
-  InstructionCost LHSCastCost = TTI.getCastInstrCost(
-      CastOpcode, DstVecTy, SrcVecTy,
-      TTI::CastContextHint::None, CostKind, LHSCast);
-  InstructionCost RHSCastCost = TTI.getCastInstrCost(
-      CastOpcode, DstVecTy, SrcVecTy,
-      TTI::CastContextHint::None, CostKind, RHSCast);
+  InstructionCost LHSCastCost =
+      TTI.getCastInstrCost(CastOpcode, DstVecTy, SrcVecTy,
+                           TTI::CastContextHint::None, CostKind, LHSCast);
+  InstructionCost RHSCastCost =
+      TTI.getCastInstrCost(CastOpcode, DstVecTy, SrcVecTy,
+                           TTI::CastContextHint::None, CostKind, RHSCast);
 
   InstructionCost OldCost =
       TTI.getArithmeticInstrCost(BinOp->getOpcode(), DstVecTy, CostKind) +
@@ -875,8 +875,7 @@ bool VectorCombine::foldBitOpOfCastops(Instruction &I) {
 
   // For new cost, we can't provide an instruction (it doesn't exist yet)
   InstructionCost GenericCastCost = TTI.getCastInstrCost(
-      CastOpcode, DstVecTy, SrcVecTy,
-      TTI::CastContextHint::None, CostKind);
+      CastOpcode, DstVecTy, SrcVecTy, TTI::CastContextHint::None, CostKind);
 
   InstructionCost NewCost =
       TTI.getArithmeticInstrCost(BinOp->getOpcode(), SrcVecTy, CostKind) +

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https://github.com/llvm/llvm-project/pull/148350