; LLVM IR from opensim-org/opensim-core :: Vendors/lepton/src (CompiledExpression)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"struct.std::pair.40" = type <{ %"class.Lepton::ExpressionTreeNode", i32, [4 x i8] }>
%"class.Lepton::ExpressionTreeNode" = type { ptr, %"class.std::vector.27" }
%"class.std::vector.27" = type { %"struct.std::_Vector_base.28" }
%"struct.std::_Vector_base.28" = type { %"struct.std::_Vector_base<Lepton::ExpressionTreeNode, std::allocator<Lepton::ExpressionTreeNode>>::_Vector_impl" }
%"struct.std::_Vector_base<Lepton::ExpressionTreeNode, std::allocator<Lepton::ExpressionTreeNode>>::_Vector_impl" = type { %"struct.std::_Vector_base<Lepton::ExpressionTreeNode, std::allocator<Lepton::ExpressionTreeNode>>::_Vector_impl_data" }
%"struct.std::_Vector_base<Lepton::ExpressionTreeNode, std::allocator<Lepton::ExpressionTreeNode>>::_Vector_impl_data" = type { ptr, ptr, ptr }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN6Lepton18CompiledExpression13findTempIndexERKNS_18ExpressionTreeNodeERSt6vectorISt4pairIS1_iESaIS6_EE(ptr noundef nonnull align 8 dereferenceable(272) %0, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(24) %2) #1 align 2 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  %10 = load ptr, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  store i32 0, ptr %8, align 4, !tbaa !9
  br label %11

11:                                               ; preds = %29, %3
  %12 = load i32, ptr %8, align 4, !tbaa !9
  %13 = load ptr, ptr %7, align 8, !tbaa !5
  %14 = call noundef i64 @_ZNKSt6vectorISt4pairIN6Lepton18ExpressionTreeNodeEiESaIS3_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %13) #4
  %15 = trunc i64 %14 to i32
  %16 = icmp slt i32 %12, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %11
  store i32 2, ptr %9, align 4
  br label %32

18:                                               ; preds = %11
  %19 = load ptr, ptr %7, align 8, !tbaa !5
  %20 = load i32, ptr %8, align 4, !tbaa !9
  %21 = sext i32 %20 to i64
  %22 = call noundef nonnull align 8 dereferenceable(36) ptr @_ZNSt6vectorISt4pairIN6Lepton18ExpressionTreeNodeEiESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %19, i64 noundef %21) #4
  %23 = getelementptr inbounds %"struct.std::pair.40", ptr %22, i32 0, i32 0
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = call noundef zeroext i1 @_ZNK6Lepton18ExpressionTreeNodeeqERKS0_(ptr noundef nonnull align 8 dereferenceable(32) %23, ptr noundef nonnull align 8 dereferenceable(32) %24)
  br i1 %25, label %26, label %28

26:                                               ; preds = %18
  %27 = load i32, ptr %8, align 4, !tbaa !9
  store i32 %27, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %32

28:                                               ; preds = %18
  br label %29

29:                                               ; preds = %28
  %30 = load i32, ptr %8, align 4, !tbaa !9
  %31 = add nsw i32 %30, 1
  store i32 %31, ptr %8, align 4, !tbaa !9
  br label %11, !llvm.loop !11

32:                                               ; preds = %26, %17
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  %33 = load i32, ptr %9, align 4
  switch i32 %33, label %37 [
    i32 2, label %34
    i32 1, label %35
  ]

34:                                               ; preds = %32
  store i32 -1, ptr %4, align 4
  br label %35

35:                                               ; preds = %34, %32
  %36 = load i32, ptr %4, align 4
  ret i32 %36

37:                                               ; preds = %32
  unreachable
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorISt4pairIN6Lepton18ExpressionTreeNodeEiESaIS3_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(36) ptr @_ZNSt6vectorISt4pairIN6Lepton18ExpressionTreeNodeEiESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

declare noundef zeroext i1 @_ZNK6Lepton18ExpressionTreeNodeeqERKS0_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN6Lepton18CompiledExpression13findTempIndexERKNS_18ExpressionTreeNodeERSt6vectorISt4pairIS1_iESaIS6_EE(ptr nocapture noundef nonnull readnone align 8 dereferenceable(272) %0, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(24) %2) local_unnamed_addr #0 align 2 {
  %4 = tail call noundef i64 @_ZNKSt6vectorISt4pairIN6Lepton18ExpressionTreeNodeEiESaIS3_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #3
  %5 = trunc i64 %4 to i32
  %.not11 = icmp sgt i32 %5, 0
  br i1 %.not11, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %3, %8
  %indvars.iv = phi i64 [ %indvars.iv.next, %8 ], [ 0, %3 ]
  %6 = tail call noundef nonnull align 8 dereferenceable(36) ptr @_ZNSt6vectorISt4pairIN6Lepton18ExpressionTreeNodeEiESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv) #3
  %7 = tail call noundef zeroext i1 @_ZNK6Lepton18ExpressionTreeNodeeqERKS0_(ptr noundef nonnull align 8 dereferenceable(32) %6, ptr noundef nonnull align 8 dereferenceable(32) %1)
  br i1 %7, label %._crit_edge.loopexit.split.loop.exit, label %8

8:                                                ; preds = %.lr.ph
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %9 = tail call noundef i64 @_ZNKSt6vectorISt4pairIN6Lepton18ExpressionTreeNodeEiESaIS3_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #3
  %sext = shl i64 %9, 32
  %10 = ashr exact i64 %sext, 32
  %.not = icmp slt i64 %indvars.iv.next, %10
  br i1 %.not, label %.lr.ph, label %._crit_edge, !llvm.loop !5

._crit_edge.loopexit.split.loop.exit:             ; preds = %.lr.ph
  %11 = trunc nuw nsw i64 %indvars.iv to i32
  br label %._crit_edge

._crit_edge:                                      ; preds = %8, %._crit_edge.loopexit.split.loop.exit, %3
  %spec.select = phi i32 [ -1, %3 ], [ %11, %._crit_edge.loopexit.split.loop.exit ], [ -1, %8 ]
  ret i32 %spec.select
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorISt4pairIN6Lepton18ExpressionTreeNodeEiESaIS3_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(36) ptr @_ZNSt6vectorISt4pairIN6Lepton18ExpressionTreeNodeEiESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

declare noundef zeroext i1 @_ZNK6Lepton18ExpressionTreeNodeeqERKS0_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass