; LLVM IR from jingweizhanghuai/Morn :: src/util (morn_list)

; 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.MList = type { i32, ptr }

@.str = external hidden unnamed_addr constant [76 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [14 x i8], align 1
@__FUNCTION__.mListSort = external hidden unnamed_addr constant [10 x i8], align 1

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

declare void @m_Exception(i32 noundef, i32 noundef, ptr noundef, i32 noundef, ptr noundef, ptr noundef, ...) #1

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

; Function Attrs: nounwind uwtable
declare dso_local void @_ListSort(ptr noundef, i32 noundef, ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local void @mListSort(ptr noundef %0, ptr noundef %1, ptr noundef %2) #2 {
  %4 = alloca ptr, align 8
  %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 %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %10, ptr %7, align 8, !tbaa !5
  br label %11

11:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = icmp eq ptr %12, null
  br i1 %13, label %21, label %14

14:                                               ; preds = %11
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = ptrtoint ptr %15 to i64
  %17 = icmp eq i64 %16, -1
  br i1 %17, label %21, label %18

18:                                               ; preds = %14
  %19 = load ptr, ptr %7, align 8, !tbaa !5
  %20 = icmp eq ptr %19, null
  br label %21

21:                                               ; preds = %18, %14, %11
  %22 = phi i1 [ true, %14 ], [ true, %11 ], [ %20, %18 ]
  %23 = zext i1 %22 to i32
  store i32 %23, ptr %8, align 4, !tbaa !9
  %24 = load i32, ptr %8, align 4, !tbaa !9
  %25 = icmp ne i32 %24, 0
  br i1 %25, label %26, label %28

26:                                               ; preds = %21
  %27 = load i32, ptr %8, align 4, !tbaa !9
  call void (i32, i32, ptr, i32, ptr, ptr, ...) @m_Exception(i32 noundef %27, i32 noundef -1, ptr noundef @.str, i32 noundef 579, ptr noundef @__FUNCTION__.mListSort, ptr noundef @.str.2)
  br label %28

28:                                               ; preds = %26, %21
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  br label %29

29:                                               ; preds = %28
  br label %30

30:                                               ; preds = %29
  %31 = load ptr, ptr %4, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.MList, ptr %31, i32 0, i32 0
  %33 = load i32, ptr %32, align 8, !tbaa !11
  %34 = icmp sle i32 %33, 1
  br i1 %34, label %35, label %36

35:                                               ; preds = %30
  store i32 1, ptr %9, align 4
  br label %45

36:                                               ; preds = %30
  %37 = load ptr, ptr %4, align 8, !tbaa !5
  %38 = getelementptr inbounds %struct.MList, ptr %37, i32 0, i32 1
  %39 = load ptr, ptr %38, align 8, !tbaa !13
  %40 = load ptr, ptr %4, align 8, !tbaa !5
  %41 = getelementptr inbounds %struct.MList, ptr %40, i32 0, i32 0
  %42 = load i32, ptr %41, align 8, !tbaa !11
  %43 = load ptr, ptr %7, align 8, !tbaa !5
  %44 = load ptr, ptr %6, align 8, !tbaa !5
  call void @_ListSort(ptr noundef %39, i32 noundef %42, ptr noundef %43, ptr noundef %44)
  store i32 0, ptr %9, align 4
  br label %45

45:                                               ; preds = %36, %35
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  %46 = load i32, ptr %9, align 4
  switch i32 %46, label %48 [
    i32 0, label %47
    i32 1, label %47
  ]

47:                                               ; preds = %45, %45
  ret void

48:                                               ; preds = %45
  unreachable
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 = { 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 = { 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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"MList", !10, i64 0, !6, i64 8}
!13 = !{!12, !6, i64 8}


; 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 [76 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [14 x i8], align 1
@__FUNCTION__.mListSort = external hidden unnamed_addr constant [10 x i8], align 1

declare void @m_Exception(i32 noundef, i32 noundef, ptr noundef, i32 noundef, ptr noundef, ptr noundef, ...) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @_ListSort(ptr noundef, i32 noundef, ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @mListSort(ptr noundef %0, ptr noundef %1, ptr noundef %2) local_unnamed_addr #1 {
  %magicptr = ptrtoint ptr %0 to i64
  switch i64 %magicptr, label %4 [
    i64 -1, label %.thread
    i64 0, label %.thread
  ]

4:                                                ; preds = %3
  %5 = icmp eq ptr %1, null
  br i1 %5, label %.thread, label %6

.thread:                                          ; preds = %3, %3, %4
  tail call void (i32, i32, ptr, i32, ptr, ptr, ...) @m_Exception(i32 noundef 1, i32 noundef -1, ptr noundef nonnull @.str, i32 noundef 579, ptr noundef nonnull @__FUNCTION__.mListSort, ptr noundef nonnull @.str.2) #2
  br label %6

6:                                                ; preds = %.thread, %4
  %7 = load i32, ptr %0, align 8, !tbaa !5
  %8 = icmp slt i32 %7, 2
  br i1 %8, label %12, label %9

9:                                                ; preds = %6
  %10 = getelementptr inbounds i8, ptr %0, i64 8
  %11 = load ptr, ptr %10, align 8, !tbaa !11
  tail call void @_ListSort(ptr noundef %11, i32 noundef %7, ptr noundef %1, ptr noundef %2)
  br label %12

12:                                               ; preds = %6, %9
  ret void
}

attributes #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 = { 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 = { 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, !7, i64 0}
!6 = !{!"MList", !7, i64 0, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 8}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,SROAPass,SimplifyCFGPass,TailCallElimPass