[llvm] [LSR] Make OptimizeLoopTermCond able to handle some non-cmp conditions (PR #165590)

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``````````diff
diff --git a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index 6a4f4cbcc..7017e79c3 100644
--- a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
@@ -2182,7 +2182,7 @@ class LSRInstance {
 
   void OptimizeShadowIV();
   bool FindIVUserForCond(Instruction *Cond, IVStrideUse *&CondUse);
-  Instruction *OptimizeMax(ICmpInst *Cond, IVStrideUse* &CondUse);
+  Instruction *OptimizeMax(ICmpInst *Cond, IVStrideUse *&CondUse);
   void OptimizeLoopTermCond();
 
   void ChainInstruction(Instruction *UserInst, Instruction *IVOper,
@@ -2476,7 +2476,7 @@ bool LSRInstance::FindIVUserForCond(Instruction *Cond, IVStrideUse *&CondUse) {
 /// This function solves this problem by detecting this type of loop and
 /// rewriting their conditions from ICMP_NE back to ICMP_SLT, and deleting
 /// the instructions for the maximum computation.
-Instruction *LSRInstance::OptimizeMax(ICmpInst *Cond, IVStrideUse* &CondUse) {
+Instruction *LSRInstance::OptimizeMax(ICmpInst *Cond, IVStrideUse *&CondUse) {
   // Check that the loop matches the pattern we're looking for.
   if (Cond->getPredicate() != CmpInst::ICMP_EQ &&
       Cond->getPredicate() != CmpInst::ICMP_NE)

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https://github.com/llvm/llvm-project/pull/165590