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

14:                                               ; preds = %4
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %15, ptr %5, align 8
  br label %38

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
  br label %20

20:                                               ; preds = %33, %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 %36

24:                                               ; preds = %20
  %25 = load ptr, ptr %8, align 8, !tbaa !5
  %26 = load ptr, ptr %6, align 8, !tbaa !5
  %27 = load ptr, ptr %10, 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 sgt i32 %29, 0
  br i1 %30, label %31, label %33

31:                                               ; preds = %24
  %32 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %32, ptr %10, align 8, !tbaa !5
  br label %33

33:                                               ; preds = %31, %24
  %34 = load ptr, ptr %6, align 8, !tbaa !5
  %35 = getelementptr inbounds i32, ptr %34, i32 1
  store ptr %35, ptr %6, align 8, !tbaa !5
  br label %20, !llvm.loop !9

36:                                               ; preds = %20
  %37 = load ptr, ptr %10, align 8, !tbaa !5
  store ptr %37, ptr %5, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #2
  br label %38

38:                                               ; preds = %36, %14
  %39 = load ptr, ptr %5, align 8
  ret ptr %39
}

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 = distinct !{!9, !10}
!10 = !{!"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 ptr @intv_max_element(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
  %.01620 = getelementptr inbounds i8, ptr %0, i64 4
  %.not21 = icmp eq ptr %.01620, %1
  %or.cond = select i1 %5, i1 true, i1 %.not21
  br i1 %or.cond, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %4, %.lr.ph
  %.01623 = phi ptr [ %.016, %.lr.ph ], [ %.01620, %4 ]
  %.022 = phi ptr [ %spec.select, %.lr.ph ], [ %0, %4 ]
  %6 = tail call i32 %2(ptr noundef nonnull %.01623, ptr noundef %.022, ptr noundef %3) #1
  %7 = icmp sgt i32 %6, 0
  %spec.select = select i1 %7, ptr %.01623, ptr %.022
  %.016 = getelementptr inbounds i8, ptr %.01623, i64 4
  %.not = icmp eq ptr %.016, %1
  br i1 %.not, label %.loopexit, label %.lr.ph, !llvm.loop !5

.loopexit:                                        ; preds = %.lr.ph, %4
  %.015 = phi ptr [ %0, %4 ], [ %spec.select, %.lr.ph ]
  ret ptr %.015
}

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,SROAPass,SimplifyCFGPass,TailCallElimPass