; LLVM IR from brpapa/algorithms :: solutions/uri/2965.ll (Z18arrestAllSuperiorsi)

; 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"

@p = external dso_local global [100010 x i32], align 16
@arrested = external dso_local global [100010 x i8], align 16

; Function Attrs: mustprogress uwtable
define dso_local void @_Z18arrestAllSuperiorsi(i32 noundef %0) #0 {
  %2 = alloca i32, align 4
  store i32 %0, ptr %2, align 4, !tbaa !5
  %3 = load i32, ptr %2, align 4, !tbaa !5
  %4 = sext i32 %3 to i64
  %5 = getelementptr inbounds [100010 x i8], ptr @arrested, i64 0, i64 %4
  %6 = load i8, ptr %5, align 1, !tbaa !9, !range !11, !noundef !12
  %7 = trunc i8 %6 to i1
  br i1 %7, label %11, label %8

8:                                                ; preds = %1
  %9 = load i32, ptr %2, align 4, !tbaa !5
  %10 = icmp eq i32 %9, 0
  br i1 %10, label %11, label %12

11:                                               ; preds = %8, %1
  br label %20

12:                                               ; preds = %8
  %13 = load i32, ptr %2, align 4, !tbaa !5
  %14 = sext i32 %13 to i64
  %15 = getelementptr inbounds [100010 x i8], ptr @arrested, i64 0, i64 %14
  store i8 1, ptr %15, align 1, !tbaa !9
  %16 = load i32, ptr %2, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds [100010 x i32], ptr @p, i64 0, i64 %17
  %19 = load i32, ptr %18, align 4, !tbaa !5
  call void @_Z18arrestAllSuperiorsi(i32 noundef %19)
  br label %20

20:                                               ; preds = %12, %11
  ret void
}

attributes #0 = { mustprogress 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"bool", !7, i64 0}
!11 = !{i8 0, i8 2}
!12 = !{}


; 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"

@p = external dso_local local_unnamed_addr global [100010 x i32], align 16
@arrested = external dso_local local_unnamed_addr global [100010 x i8], align 16

; Function Attrs: mustprogress nofree norecurse nosync nounwind memory(readwrite, argmem: none, inaccessiblemem: none) uwtable
define dso_local void @_Z18arrestAllSuperiorsi(i32 noundef %0) local_unnamed_addr #0 {
  %2 = sext i32 %0 to i64
  %3 = getelementptr inbounds [100010 x i8], ptr @arrested, i64 0, i64 %2
  %4 = load i8, ptr %3, align 1, !tbaa !5, !range !9, !noundef !10
  %5 = trunc nuw i8 %4 to i1
  %6 = icmp eq i32 %0, 0
  %or.cond5 = or i1 %6, %5
  br i1 %or.cond5, label %tailrecurse._crit_edge, label %tailrecurse

tailrecurse:                                      ; preds = %1, %tailrecurse
  %7 = phi ptr [ %12, %tailrecurse ], [ %3, %1 ]
  %8 = phi i64 [ %11, %tailrecurse ], [ %2, %1 ]
  store i8 1, ptr %7, align 1, !tbaa !5
  %9 = getelementptr inbounds [100010 x i32], ptr @p, i64 0, i64 %8
  %10 = load i32, ptr %9, align 4, !tbaa !11
  %11 = sext i32 %10 to i64
  %12 = getelementptr inbounds [100010 x i8], ptr @arrested, i64 0, i64 %11
  %13 = load i8, ptr %12, align 1, !tbaa !5, !range !9, !noundef !10
  %14 = trunc nuw i8 %13 to i1
  %15 = icmp eq i32 %10, 0
  %or.cond = or i1 %15, %14
  br i1 %or.cond, label %tailrecurse._crit_edge, label %tailrecurse

tailrecurse._crit_edge:                           ; preds = %tailrecurse, %1
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind memory(readwrite, argmem: none, inaccessiblemem: none) 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 = !{!"bool", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{i8 0, i8 2}
!10 = !{}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}


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