; LLVM IR from fritzsedlazeck/SURVIVOR :: src/merge_vcf/combine_svs.ll (Z10get_len_idi)

; 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: mustprogress nounwind uwtable
define dso_local noundef i64 @_Z10get_len_idi(i32 noundef %0) #0 {
  %2 = alloca i64, align 8
  %3 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  %4 = load i32, ptr %3, align 4, !tbaa !5
  %5 = icmp slt i32 %4, 50
  br i1 %5, label %6, label %7

6:                                                ; preds = %1
  store i64 0, ptr %2, align 8
  br label %23

7:                                                ; preds = %1
  %8 = load i32, ptr %3, align 4, !tbaa !5
  %9 = icmp slt i32 %8, 100
  br i1 %9, label %10, label %11

10:                                               ; preds = %7
  store i64 1, ptr %2, align 8
  br label %23

11:                                               ; preds = %7
  %12 = load i32, ptr %3, align 4, !tbaa !5
  %13 = icmp slt i32 %12, 1000
  br i1 %13, label %14, label %15

14:                                               ; preds = %11
  store i64 2, ptr %2, align 8
  br label %23

15:                                               ; preds = %11
  %16 = load i32, ptr %3, align 4, !tbaa !5
  %17 = icmp slt i32 %16, 10000
  br i1 %17, label %18, label %19

18:                                               ; preds = %15
  store i64 3, ptr %2, align 8
  br label %23

19:                                               ; preds = %15
  br label %20

20:                                               ; preds = %19
  br label %21

21:                                               ; preds = %20
  br label %22

22:                                               ; preds = %21
  store i64 4, ptr %2, align 8
  br label %23

23:                                               ; preds = %22, %18, %14, %10, %6
  %24 = load i64, ptr %2, align 8
  ret i64 %24
}

attributes #0 = { mustprogress 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; 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: mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local noundef range(i64 0, 5) i64 @_Z10get_len_idi(i32 noundef %0) local_unnamed_addr #0 {
  %2 = icmp slt i32 %0, 50
  br i1 %2, label %9, label %3

3:                                                ; preds = %1
  %4 = icmp ult i32 %0, 100
  br i1 %4, label %9, label %5

5:                                                ; preds = %3
  %6 = icmp ult i32 %0, 1000
  br i1 %6, label %9, label %7

7:                                                ; preds = %5
  %8 = icmp ult i32 %0, 10000
  %. = select i1 %8, i64 3, i64 4
  br label %9

9:                                                ; preds = %7, %5, %3, %1
  %.0 = phi i64 [ 0, %1 ], [ 1, %3 ], [ 2, %5 ], [ %., %7 ]
  ret i64 %.0
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(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)"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,IPSCCPPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass