; 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: nounwind uwtable
declare dso_local void @intv_swap(ptr noundef, ptr noundef) #0

; Function Attrs: nounwind uwtable
define dso_local void @intv_reverse(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8, !tbaa !5
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = icmp eq ptr %5, %6
  br i1 %7, label %8, label %9

8:                                                ; preds = %2
  br label %23

9:                                                ; preds = %2
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds i32, ptr %10, i32 -1
  store ptr %11, ptr %4, align 8, !tbaa !5
  br label %12

12:                                               ; preds = %16, %9
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = icmp ult ptr %13, %14
  br i1 %15, label %16, label %23

16:                                               ; preds = %12
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  call void @intv_swap(ptr noundef %17, ptr noundef %18)
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = getelementptr inbounds i32, ptr %19, i32 1
  store ptr %20, ptr %3, align 8, !tbaa !5
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = getelementptr inbounds i32, ptr %21, i32 -1
  store ptr %22, ptr %4, align 8, !tbaa !5
  br label %12, !llvm.loop !9

23:                                               ; preds = %12, %8
  ret void
}

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 = 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
declare dso_local void @intv_swap(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @intv_reverse(ptr noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = icmp ne ptr %0, %1
  %.012 = getelementptr inbounds i8, ptr %1, i64 -4
  %4 = icmp ugt ptr %.012, %0
  %or.cond = select i1 %3, i1 %4, i1 false
  br i1 %or.cond, label %.lr.ph, label %.loopexit

.lr.ph:                                           ; preds = %2, %.lr.ph
  %.014 = phi ptr [ %.0, %.lr.ph ], [ %.012, %2 ]
  %.0913 = phi ptr [ %5, %.lr.ph ], [ %0, %2 ]
  tail call void @intv_swap(ptr noundef %.0913, ptr noundef nonnull %.014)
  %5 = getelementptr inbounds i8, ptr %.0913, i64 4
  %.0 = getelementptr inbounds i8, ptr %.014, i64 -4
  %6 = icmp ult ptr %5, %.0
  br i1 %6, label %.lr.ph, label %.loopexit, !llvm.loop !5

.loopexit:                                        ; preds = %.lr.ph, %2
  ret void
}

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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass