; LLVM IR from graphitemaster/libintrusive :: example (test_avl_compare)

; 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.test_avl_t = type { i32, %struct.avl_node_s }
%struct.avl_node_s = type { i64, ptr, 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: nounwind uwtable
define dso_local i32 @test_avl_compare(ptr noundef %0, ptr noundef %1, ptr noundef %2) #1 {
  %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
  %10 = 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
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = getelementptr inbounds i8, ptr %11, i64 -8
  store ptr %12, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #2
  %13 = load ptr, ptr %6, align 8, !tbaa !5
  %14 = getelementptr inbounds i8, ptr %13, i64 -8
  store ptr %14, ptr %9, align 8, !tbaa !5
  %15 = load ptr, ptr %8, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.test_avl_t, ptr %15, i32 0, i32 0
  %17 = load i32, ptr %16, align 8, !tbaa !9
  %18 = load ptr, ptr %9, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.test_avl_t, ptr %18, i32 0, i32 0
  %20 = load i32, ptr %19, align 8, !tbaa !9
  %21 = icmp slt i32 %17, %20
  br i1 %21, label %22, label %23

22:                                               ; preds = %3
  store i32 -1, ptr %4, align 4
  store i32 1, ptr %10, align 4
  br label %33

23:                                               ; preds = %3
  %24 = load ptr, ptr %8, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.test_avl_t, ptr %24, i32 0, i32 0
  %26 = load i32, ptr %25, align 8, !tbaa !9
  %27 = load ptr, ptr %9, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.test_avl_t, ptr %27, i32 0, i32 0
  %29 = load i32, ptr %28, align 8, !tbaa !9
  %30 = icmp sgt i32 %26, %29
  br i1 %30, label %31, label %32

31:                                               ; preds = %23
  store i32 1, ptr %4, align 4
  store i32 1, ptr %10, align 4
  br label %33

32:                                               ; preds = %23
  store i32 0, ptr %4, align 4
  store i32 1, ptr %10, align 4
  br label %33

33:                                               ; preds = %32, %31, %22
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  %34 = load i32, ptr %4, align 4
  ret i32 %34
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"", !11, i64 0, !12, i64 8}
!11 = !{!"int", !7, i64 0}
!12 = !{!"avl_node_s", !13, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32}
!13 = !{!"long", !7, i64 0}


; 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(argmem: read) uwtable
define dso_local range(i32 -1, 2) i32 @test_avl_compare(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1, ptr nocapture noundef readnone %2) local_unnamed_addr #0 {
  %4 = getelementptr inbounds i8, ptr %0, i64 -8
  %5 = getelementptr inbounds i8, ptr %1, i64 -8
  %6 = load i32, ptr %4, align 8, !tbaa !5
  %7 = load i32, ptr %5, align 8, !tbaa !5
  %8 = icmp slt i32 %6, %7
  %9 = icmp sgt i32 %6, %7
  %. = zext i1 %9 to i32
  %.0 = select i1 %8, i32 -1, i32 %.
  ret i32 %.0
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) 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, !7, i64 0}
!6 = !{!"", !7, i64 0, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"avl_node_s", !11, i64 0, !12, i64 8, !12, i64 16, !12, i64 24, !12, i64 32}
!11 = !{!"long", !8, i64 0}
!12 = !{!"any pointer", !8, i64 0}


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