; LLVM IR from clibraries/array-algorithms :: test (impl)

; 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"

; 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 i64 @intv_unique_count(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) #1 {
  %5 = alloca i64, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i64, align 8
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store ptr %2, ptr %8, align 8, !tbaa !5
  store ptr %3, ptr %9, align 8, !tbaa !5
  %12 = load ptr, ptr %6, align 8, !tbaa !5
  %13 = load ptr, ptr %7, align 8, !tbaa !5
  %14 = icmp eq ptr %12, %13
  br i1 %14, label %15, label %16

15:                                               ; preds = %4
  store i64 0, ptr %5, align 8
  br label %40

16:                                               ; preds = %4
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #2
  %17 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %17, ptr %10, align 8, !tbaa !5
  %18 = load ptr, ptr %6, align 8, !tbaa !5
  %19 = getelementptr inbounds i32, ptr %18, i32 1
  store ptr %19, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #2
  store i64 1, ptr %11, align 8, !tbaa !9
  br label %20

20:                                               ; preds = %35, %16
  %21 = load ptr, ptr %6, align 8, !tbaa !5
  %22 = load ptr, ptr %7, align 8, !tbaa !5
  %23 = icmp ne ptr %21, %22
  br i1 %23, label %24, label %38

24:                                               ; preds = %20
  %25 = load ptr, ptr %8, align 8, !tbaa !5
  %26 = load ptr, ptr %10, align 8, !tbaa !5
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = load ptr, ptr %9, align 8, !tbaa !5
  %29 = call i32 %25(ptr noundef %26, ptr noundef %27, ptr noundef %28)
  %30 = icmp ne i32 %29, 0
  br i1 %30, label %31, label %35

31:                                               ; preds = %24
  %32 = load i64, ptr %11, align 8, !tbaa !9
  %33 = add i64 %32, 1
  store i64 %33, ptr %11, align 8, !tbaa !9
  %34 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %34, ptr %10, align 8, !tbaa !5
  br label %35

35:                                               ; preds = %31, %24
  %36 = load ptr, ptr %6, align 8, !tbaa !5
  %37 = getelementptr inbounds i32, ptr %36, i32 1
  store ptr %37, ptr %6, align 8, !tbaa !5
  br label %20, !llvm.loop !11

38:                                               ; preds = %20
  %39 = load i64, ptr %11, align 8, !tbaa !9
  store i64 %39, ptr %5, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #2
  br label %40

40:                                               ; preds = %38, %15
  %41 = load i64, ptr %5, align 8
  ret i64 %41
}

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, !10, i64 0}
!10 = !{!"long", !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: nounwind uwtable
define dso_local i64 @intv_unique_count(ptr noundef %0, ptr noundef readnone %1, ptr nocapture noundef readonly %2, ptr noundef %3) local_unnamed_addr #0 {
  %5 = icmp eq ptr %0, %1
  br i1 %5, label %.loopexit, label %.preheader

.preheader:                                       ; preds = %4
  %.01722 = getelementptr inbounds i8, ptr %0, i64 4
  %.not23 = icmp eq ptr %.01722, %1
  br i1 %.not23, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %.01726 = phi ptr [ %.017, %.lr.ph ], [ %.01722, %.preheader ]
  %.025 = phi i64 [ %spec.select21, %.lr.ph ], [ 1, %.preheader ]
  %.01424 = phi ptr [ %spec.select, %.lr.ph ], [ %0, %.preheader ]
  %6 = tail call i32 %2(ptr noundef %.01424, ptr noundef nonnull %.01726, ptr noundef %3) #1
  %.not20 = icmp ne i32 %6, 0
  %spec.select = select i1 %.not20, ptr %.01726, ptr %.01424
  %7 = zext i1 %.not20 to i64
  %spec.select21 = add i64 %.025, %7
  %.017 = getelementptr inbounds i8, ptr %.01726, i64 4
  %.not = icmp eq ptr %.017, %1
  br i1 %.not, label %.loopexit, label %.lr.ph, !llvm.loop !5

.loopexit:                                        ; preds = %.lr.ph, %.preheader, %4
  %.016 = phi i64 [ 0, %4 ], [ 1, %.preheader ], [ %spec.select21, %.lr.ph ]
  ret i64 %.016
}

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" }
attributes #1 = { 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: GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass