; LLVM IR from JessonYue/LeetCodeLearning :: Array/zhanchengguo/0709-旋转链表 (RotatingList)

; 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.ListNode = type { i32, ptr }

@.str = external hidden unnamed_addr constant [14 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #6
  %10 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 16) #7
  invoke void @_ZN8ListNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(16) %10, i32 noundef 0)
          to label %11 unwind label %47

11:                                               ; preds = %0
  store ptr %10, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #6
  %12 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 16) #7
  invoke void @_ZN8ListNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(16) %12, i32 noundef 1)
          to label %13 unwind label %51

13:                                               ; preds = %11
  store ptr %12, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  %14 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 16) #7
  invoke void @_ZN8ListNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(16) %14, i32 noundef 2)
          to label %15 unwind label %55

15:                                               ; preds = %13
  store ptr %14, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #6
  %16 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 16) #7
  invoke void @_ZN8ListNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(16) %16, i32 noundef 4)
          to label %17 unwind label %59

17:                                               ; preds = %15
  store ptr %16, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #6
  %18 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 16) #7
  invoke void @_ZN8ListNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(16) %18, i32 noundef 5)
          to label %19 unwind label %63

19:                                               ; preds = %17
  store ptr %18, ptr %8, align 8, !tbaa !5
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = load ptr, ptr %2, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.ListNode, ptr %21, i32 0, i32 1
  store ptr %20, ptr %22, align 8, !tbaa !9
  %23 = load ptr, ptr %6, align 8, !tbaa !5
  %24 = load ptr, ptr %5, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.ListNode, ptr %24, i32 0, i32 1
  store ptr %23, ptr %25, align 8, !tbaa !9
  %26 = load ptr, ptr %7, align 8, !tbaa !5
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.ListNode, ptr %27, i32 0, i32 1
  store ptr %26, ptr %28, align 8, !tbaa !9
  %29 = load ptr, ptr %8, align 8, !tbaa !5
  %30 = load ptr, ptr %7, align 8, !tbaa !5
  %31 = getelementptr inbounds %struct.ListNode, ptr %30, i32 0, i32 1
  store ptr %29, ptr %31, align 8, !tbaa !9
  %32 = load ptr, ptr %8, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.ListNode, ptr %32, i32 0, i32 1
  store ptr null, ptr %33, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #6
  %34 = load ptr, ptr %2, align 8, !tbaa !5
  %35 = call noundef ptr @_Z11rotateRightP8ListNodei(ptr noundef %34, i32 noundef 3)
  store ptr %35, ptr %9, align 8, !tbaa !5
  br label %36

36:                                               ; preds = %39, %19
  %37 = load ptr, ptr %9, align 8, !tbaa !5
  %38 = icmp ne ptr %37, null
  br i1 %38, label %39, label %67

39:                                               ; preds = %36
  %40 = load ptr, ptr %9, align 8, !tbaa !5
  %41 = getelementptr inbounds %struct.ListNode, ptr %40, i32 0, i32 0
  %42 = load i32, ptr %41, align 8, !tbaa !12
  %43 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %42)
  %44 = load ptr, ptr %9, align 8, !tbaa !5
  %45 = getelementptr inbounds %struct.ListNode, ptr %44, i32 0, i32 1
  %46 = load ptr, ptr %45, align 8, !tbaa !9
  store ptr %46, ptr %9, align 8, !tbaa !5
  br label %36, !llvm.loop !13

47:                                               ; preds = %0
  %48 = landingpad { ptr, i32 }
          cleanup
  %49 = extractvalue { ptr, i32 } %48, 0
  store ptr %49, ptr %3, align 8
  %50 = extractvalue { ptr, i32 } %48, 1
  store i32 %50, ptr %4, align 4
  call void @_ZdlPvm(ptr noundef %10, i64 noundef 16) #8
  br label %72

51:                                               ; preds = %11
  %52 = landingpad { ptr, i32 }
          cleanup
  %53 = extractvalue { ptr, i32 } %52, 0
  store ptr %53, ptr %3, align 8
  %54 = extractvalue { ptr, i32 } %52, 1
  store i32 %54, ptr %4, align 4
  call void @_ZdlPvm(ptr noundef %12, i64 noundef 16) #8
  br label %71

55:                                               ; preds = %13
  %56 = landingpad { ptr, i32 }
          cleanup
  %57 = extractvalue { ptr, i32 } %56, 0
  store ptr %57, ptr %3, align 8
  %58 = extractvalue { ptr, i32 } %56, 1
  store i32 %58, ptr %4, align 4
  call void @_ZdlPvm(ptr noundef %14, i64 noundef 16) #8
  br label %70

59:                                               ; preds = %15
  %60 = landingpad { ptr, i32 }
          cleanup
  %61 = extractvalue { ptr, i32 } %60, 0
  store ptr %61, ptr %3, align 8
  %62 = extractvalue { ptr, i32 } %60, 1
  store i32 %62, ptr %4, align 4
  call void @_ZdlPvm(ptr noundef %16, i64 noundef 16) #8
  br label %69

63:                                               ; preds = %17
  %64 = landingpad { ptr, i32 }
          cleanup
  %65 = extractvalue { ptr, i32 } %64, 0
  store ptr %65, ptr %3, align 8
  %66 = extractvalue { ptr, i32 } %64, 1
  store i32 %66, ptr %4, align 4
  call void @_ZdlPvm(ptr noundef %18, i64 noundef 16) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  br label %69

67:                                               ; preds = %36
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  %68 = load i32, ptr %1, align 4
  ret i32 %68

69:                                               ; preds = %63, %59
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  br label %70

70:                                               ; preds = %69, %55
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  br label %71

71:                                               ; preds = %70, %51
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #6
  br label %72

72:                                               ; preds = %71, %47
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  br label %73

73:                                               ; preds = %72
  %74 = load ptr, ptr %3, align 8
  %75 = load i32, ptr %4, align 4
  %76 = insertvalue { ptr, i32 } poison, ptr %74, 0
  %77 = insertvalue { ptr, i32 } %76, i32 %75, 1
  resume { ptr, i32 } %77
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN8ListNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_Z11rotateRightP8ListNodei(ptr noundef, i32 noundef) #3

declare i32 @printf(ptr noundef, ...) #5

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { mustprogress norecurse 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nobuiltin allocsize(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 = { 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 #4 = { nobuiltin nounwind "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 #5 = { "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 #6 = { nounwind }
attributes #7 = { builtin allocsize(0) }
attributes #8 = { builtin 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, !6, i64 8}
!10 = !{!"_ZTS8ListNode", !11, i64 0, !6, i64 8}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !11, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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"

@.str = external hidden unnamed_addr constant [14 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = tail call noalias noundef nonnull dereferenceable(16) ptr @_Znwm(i64 noundef 16) #4
  tail call void @_ZN8ListNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(16) %1, i32 noundef 0)
  %2 = tail call noalias noundef nonnull dereferenceable(16) ptr @_Znwm(i64 noundef 16) #4
  tail call void @_ZN8ListNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(16) %2, i32 noundef 1)
  %3 = tail call noalias noundef nonnull dereferenceable(16) ptr @_Znwm(i64 noundef 16) #4
  tail call void @_ZN8ListNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(16) %3, i32 noundef 2)
  %4 = tail call noalias noundef nonnull dereferenceable(16) ptr @_Znwm(i64 noundef 16) #4
  tail call void @_ZN8ListNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(16) %4, i32 noundef 4)
  %5 = tail call noalias noundef nonnull dereferenceable(16) ptr @_Znwm(i64 noundef 16) #4
  tail call void @_ZN8ListNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(16) %5, i32 noundef 5)
  %6 = getelementptr inbounds i8, ptr %1, i64 8
  store ptr %2, ptr %6, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %2, i64 8
  store ptr %3, ptr %7, align 8, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %3, i64 8
  store ptr %4, ptr %8, align 8, !tbaa !5
  %9 = getelementptr inbounds i8, ptr %4, i64 8
  store ptr %5, ptr %9, align 8, !tbaa !5
  %10 = getelementptr inbounds i8, ptr %5, i64 8
  store ptr null, ptr %10, align 8, !tbaa !5
  %11 = tail call noundef ptr @_Z11rotateRightP8ListNodei(ptr noundef nonnull %1, i32 noundef 3)
  %.not13 = icmp eq ptr %11, null
  br i1 %.not13, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %0, %.lr.ph
  %.014 = phi ptr [ %15, %.lr.ph ], [ %11, %0 ]
  %12 = load i32, ptr %.014, align 8, !tbaa !11
  %13 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %12)
  %14 = getelementptr inbounds i8, ptr %.014, i64 8
  %15 = load ptr, ptr %14, align 8, !tbaa !5
  %.not = icmp eq ptr %15, null
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !12

._crit_edge:                                      ; preds = %.lr.ph, %0
  ret i32 0
}

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN8ListNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_Z11rotateRightP8ListNodei(ptr noundef, i32 noundef) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #3

attributes #0 = { mustprogress norecurse 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 = { nobuiltin allocsize(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 = { nofree nounwind "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 = { builtin allocsize(0) }

!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, !10, i64 8}
!6 = !{!"_ZTS8ListNode", !7, i64 0, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass