; LLVM IR from jermp/2i_bench :: external/CRoaring/tests (toplevel_unit)

; 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: inlinehint nounwind uwtable
declare zeroext i1 @roaring_bitmap_contains(ptr noundef, i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @choose_missing_value(ptr noundef %0, i32 noundef %1) #2 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %21, %2
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  %9 = call i32 @our_rand()
  %10 = load i32, ptr %5, align 4, !tbaa !9
  %11 = urem i32 %9, %10
  store i32 %11, ptr %6, align 4, !tbaa !9
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = load i32, ptr %6, align 4, !tbaa !9
  %14 = call zeroext i1 @roaring_bitmap_contains(ptr noundef %12, i32 noundef %13)
  br i1 %14, label %17, label %15

15:                                               ; preds = %8
  %16 = load i32, ptr %6, align 4, !tbaa !9
  store i32 %16, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %18

17:                                               ; preds = %8
  store i32 0, ptr %7, align 4
  br label %18

18:                                               ; preds = %17, %15
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  %19 = load i32, ptr %7, align 4
  switch i32 %19, label %24 [
    i32 0, label %20
    i32 1, label %22
  ]

20:                                               ; preds = %18
  br label %21

21:                                               ; preds = %20
  br i1 true, label %8, label %22

22:                                               ; preds = %21, %18
  %23 = load i32, ptr %3, align 4
  ret i32 %23

24:                                               ; preds = %18
  unreachable
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden i32 @our_rand() #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { inlinehint 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 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 #3 = { 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 = !{!10, !10, i64 0}
!10 = !{!"int", !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"

; Function Attrs: inlinehint nounwind uwtable
declare zeroext i1 @roaring_bitmap_contains(ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @choose_missing_value(ptr noundef %0, i32 noundef %1) local_unnamed_addr #1 {
  br label %3

3:                                                ; preds = %3, %2
  %4 = tail call i32 @our_rand()
  %5 = urem i32 %4, %1
  %6 = tail call zeroext i1 @roaring_bitmap_contains(ptr noundef %0, i32 noundef %5)
  br i1 %6, label %3, label %7

7:                                                ; preds = %3
  ret i32 %5
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden i32 @our_rand() local_unnamed_addr #0

attributes #0 = { inlinehint 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 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,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass