; LLVM IR from Water-Melon/Melon :: src (mln_queue)

; 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.mln_queue_t = type { ptr, ptr, ptr, i64, i64, ptr }

; Function Attrs: nounwind uwtable
define dso_local i32 @mln_queue_append(ptr noundef nonnull %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.mln_queue_t, ptr %6, i32 0, i32 4
  %8 = load i64, ptr %7, align 8, !tbaa !9
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.mln_queue_t, ptr %9, i32 0, i32 3
  %11 = load i64, ptr %10, align 8, !tbaa !12
  %12 = icmp uge i64 %8, %11
  br i1 %12, label %13, label %14

13:                                               ; preds = %2
  store i32 -1, ptr %3, align 4
  br label %42

14:                                               ; preds = %2
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.mln_queue_t, ptr %16, i32 0, i32 1
  %18 = load ptr, ptr %17, align 8, !tbaa !13
  %19 = getelementptr inbounds ptr, ptr %18, i32 1
  store ptr %19, ptr %17, align 8, !tbaa !13
  store ptr %15, ptr %18, align 8, !tbaa !5
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.mln_queue_t, ptr %20, i32 0, i32 1
  %22 = load ptr, ptr %21, align 8, !tbaa !13
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.mln_queue_t, ptr %23, i32 0, i32 2
  %25 = load ptr, ptr %24, align 8, !tbaa !14
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.mln_queue_t, ptr %26, i32 0, i32 3
  %28 = load i64, ptr %27, align 8, !tbaa !12
  %29 = getelementptr inbounds ptr, ptr %25, i64 %28
  %30 = icmp eq ptr %22, %29
  br i1 %30, label %31, label %37

31:                                               ; preds = %14
  %32 = load ptr, ptr %4, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.mln_queue_t, ptr %32, i32 0, i32 2
  %34 = load ptr, ptr %33, align 8, !tbaa !14
  %35 = load ptr, ptr %4, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.mln_queue_t, ptr %35, i32 0, i32 1
  store ptr %34, ptr %36, align 8, !tbaa !13
  br label %37

37:                                               ; preds = %31, %14
  %38 = load ptr, ptr %4, align 8, !tbaa !5
  %39 = getelementptr inbounds %struct.mln_queue_t, ptr %38, i32 0, i32 4
  %40 = load i64, ptr %39, align 8, !tbaa !9
  %41 = add i64 %40, 1
  store i64 %41, ptr %39, align 8, !tbaa !9
  store i32 0, ptr %3, align 4
  br label %42

42:                                               ; preds = %37, %13
  %43 = load i32, ptr %3, align 4
  ret i32 %43
}

attributes #0 = { 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" }

!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, !11, i64 32}
!10 = !{!"", !6, i64 0, !6, i64 8, !6, i64 16, !11, i64 24, !11, i64 32, !6, i64 40}
!11 = !{!"long", !7, i64 0}
!12 = !{!10, !11, i64 24}
!13 = !{!10, !6, i64 8}
!14 = !{!10, !6, i64 16}


; 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 nofree norecurse nosync nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: none) uwtable
define dso_local range(i32 -1, 1) i32 @mln_queue_append(ptr nocapture noundef nonnull %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 32
  %4 = load i64, ptr %3, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %0, i64 24
  %6 = load i64, ptr %5, align 8, !tbaa !11
  %.not = icmp ult i64 %4, %6
  br i1 %.not, label %7, label %19

7:                                                ; preds = %2
  %8 = getelementptr inbounds i8, ptr %0, i64 8
  %9 = load ptr, ptr %8, align 8, !tbaa !12
  %10 = getelementptr inbounds i8, ptr %9, i64 8
  store ptr %10, ptr %8, align 8, !tbaa !12
  store ptr %1, ptr %9, align 8, !tbaa !13
  %11 = load ptr, ptr %8, align 8, !tbaa !12
  %12 = getelementptr inbounds i8, ptr %0, i64 16
  %13 = load ptr, ptr %12, align 8, !tbaa !14
  %14 = getelementptr inbounds ptr, ptr %13, i64 %6
  %15 = icmp eq ptr %11, %14
  br i1 %15, label %16, label %17

16:                                               ; preds = %7
  store ptr %13, ptr %8, align 8, !tbaa !12
  br label %17

17:                                               ; preds = %16, %7
  %18 = add nuw i64 %4, 1
  store i64 %18, ptr %3, align 8, !tbaa !5
  br label %19

19:                                               ; preds = %2, %17
  %.0 = phi i32 [ 0, %17 ], [ -1, %2 ]
  ret i32 %.0
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: none) 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" }

!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 32}
!6 = !{!"", !7, i64 0, !7, i64 8, !7, i64 16, !10, i64 24, !10, i64 32, !7, i64 40}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!6, !10, i64 24}
!12 = !{!6, !7, i64 8}
!13 = !{!7, !7, i64 0}
!14 = !{!6, !7, i64 16}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass