[llvm] [perf] Replace copy-assign by move-assign in llvm/lib/Analysis/* (PR #178169)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/Analysis/IVDescriptors.cpp llvm/lib/Analysis/InlineCost.cpp llvm/lib/Analysis/LoopUnrollAnalyzer.cpp --diff_from_common_commit
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Analysis/IVDescriptors.cpp b/llvm/lib/Analysis/IVDescriptors.cpp
index 759d31d78..39cec1822 100644
--- a/llvm/lib/Analysis/IVDescriptors.cpp
+++ b/llvm/lib/Analysis/IVDescriptors.cpp
@@ -656,9 +656,10 @@ bool RecurrenceDescriptor::AddReductionVar(
   // is saved as part of the RecurrenceDescriptor.
 
   // Save the description of this reduction variable.
-  ResDes = RecurrenceDescriptor RD(RdxStart, ExitInstruction, IntermediateStore, Kind,
-                          FMF, ExactFPMathInst, RecurrenceType, IsSigned,
-                          IsOrdered, CastInsts, MinWidthCastToRecurrenceType);
+  ResDes = RecurrenceDescriptor RD(RdxStart, ExitInstruction, IntermediateStore,
+                                   Kind, FMF, ExactFPMathInst, RecurrenceType,
+                                   IsSigned, IsOrdered, CastInsts,
+                                   MinWidthCastToRecurrenceType);
   return true;
 }
 

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https://github.com/llvm/llvm-project/pull/178169