; LLVM IR from AdrianWR/push_swap :: src (utils)

; 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"

@reverse_array.i = external hidden global i64, align 8

; Function Attrs: nounwind uwtable
define dso_local void @reverse_array(ptr noundef %0, i64 noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !9
  %5 = load i64, ptr @reverse_array.i, align 8, !tbaa !9
  %6 = load i64, ptr %4, align 8, !tbaa !9
  %7 = icmp ult i64 %5, %6
  br i1 %7, label %8, label %20

8:                                                ; preds = %2
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = load i64, ptr @reverse_array.i, align 8, !tbaa !9
  %11 = add i64 %10, 1
  store i64 %11, ptr @reverse_array.i, align 8, !tbaa !9
  %12 = getelementptr inbounds i32, ptr %9, i64 %10
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = load i64, ptr %4, align 8, !tbaa !9
  %15 = sub i64 %14, 1
  %16 = getelementptr inbounds i32, ptr %13, i64 %15
  call void @_swap(ptr noundef %12, ptr noundef %16)
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = load i64, ptr %4, align 8, !tbaa !9
  %19 = sub i64 %18, 1
  call void @reverse_array(ptr noundef %17, i64 noundef %19)
  br label %20

20:                                               ; preds = %8, %2
  store i64 0, ptr @reverse_array.i, align 8, !tbaa !9
  ret void
}

; Function Attrs: nounwind uwtable
declare hidden void @_swap(ptr noundef, ptr noundef) #0

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, !10, i64 0}
!10 = !{!"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"

@reverse_array.i = external hidden local_unnamed_addr global i64, align 8

; Function Attrs: nounwind uwtable
define dso_local void @reverse_array(ptr noundef %0, i64 noundef %1) local_unnamed_addr #0 {
  %3 = load i64, ptr @reverse_array.i, align 8, !tbaa !5
  %4 = icmp ult i64 %3, %1
  br i1 %4, label %5, label %10

5:                                                ; preds = %2
  %6 = add nuw i64 %3, 1
  store i64 %6, ptr @reverse_array.i, align 8, !tbaa !5
  %7 = getelementptr inbounds i32, ptr %0, i64 %3
  %8 = add i64 %1, -1
  %9 = getelementptr inbounds i32, ptr %0, i64 %8
  tail call void @_swap(ptr noundef %7, ptr noundef %9)
  tail call void @reverse_array(ptr noundef %0, i64 noundef %8)
  br label %10

10:                                               ; preds = %5, %2
  store i64 0, ptr @reverse_array.i, align 8, !tbaa !5
  ret void
}

; Function Attrs: nounwind uwtable
declare hidden void @_swap(ptr noundef, ptr noundef) local_unnamed_addr #0

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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InstCombinePass,SROAPass,TailCallElimPass