; LLVM IR from Softmotions/iowow :: src/utils (iwhmap)

; 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"

%struct.iwhmap = type { i32, i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, i8 }
%struct.bucket_t = type { ptr, i32, i32 }

; 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: nounwind uwtable
declare hidden ptr @_entry_find(ptr noundef, ptr noundef, i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local zeroext i1 @iwhmap_remove(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.iwhmap, ptr %10, i32 0, i32 4
  %12 = load ptr, ptr %11, align 8, !tbaa !9
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = call i32 %12(ptr noundef %13)
  store i32 %14, ptr %6, align 4, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.iwhmap, ptr %15, i32 0, i32 2
  %17 = load ptr, ptr %16, align 8, !tbaa !14
  %18 = load i32, ptr %6, align 4, !tbaa !13
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.iwhmap, ptr %19, i32 0, i32 1
  %21 = load i32, ptr %20, align 4, !tbaa !15
  %22 = and i32 %18, %21
  %23 = zext i32 %22 to i64
  %24 = getelementptr inbounds %struct.bucket_t, ptr %17, i64 %23
  store ptr %24, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = load i32, ptr %6, align 4, !tbaa !13
  %28 = call ptr @_entry_find(ptr noundef %25, ptr noundef %26, i32 noundef %27)
  store ptr %28, ptr %8, align 8, !tbaa !5
  %29 = load ptr, ptr %8, align 8, !tbaa !5
  %30 = icmp ne ptr %29, null
  br i1 %30, label %31, label %35

31:                                               ; preds = %2
  %32 = load ptr, ptr %4, align 8, !tbaa !5
  %33 = load ptr, ptr %7, align 8, !tbaa !5
  %34 = load ptr, ptr %8, align 8, !tbaa !5
  call void @_entry_remove(ptr noundef %32, ptr noundef %33, ptr noundef %34)
  store i1 true, ptr %3, align 1
  store i32 1, ptr %9, align 4
  br label %36

35:                                               ; preds = %2
  store i1 false, ptr %3, align 1
  store i32 1, ptr %9, align 4
  br label %36

36:                                               ; preds = %35, %31
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  %37 = load i1, ptr %3, align 1
  ret i1 %37
}

; Function Attrs: nounwind uwtable
declare hidden void @_entry_remove(ptr noundef, ptr noundef, ptr noundef) #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #2 = { 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, !6, i64 24}
!10 = !{!"iwhmap", !11, i64 0, !11, i64 4, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !12, i64 72}
!11 = !{!"int", !7, i64 0}
!12 = !{!"_Bool", !7, i64 0}
!13 = !{!11, !11, i64 0}
!14 = !{!10, !6, i64 8}
!15 = !{!10, !11, i64 4}


; 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"

%struct.bucket_t = type { ptr, i32, i32 }

; Function Attrs: nounwind uwtable
declare hidden ptr @_entry_find(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef zeroext i1 @iwhmap_remove(ptr noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 24
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = tail call i32 %4(ptr noundef %1) #1
  %6 = getelementptr inbounds i8, ptr %0, i64 8
  %7 = load ptr, ptr %6, align 8, !tbaa !12
  %8 = getelementptr inbounds i8, ptr %0, i64 4
  %9 = load i32, ptr %8, align 4, !tbaa !13
  %10 = tail call ptr @_entry_find(ptr noundef %0, ptr noundef %1, i32 noundef %5)
  %.not = icmp ne ptr %10, null
  br i1 %.not, label %11, label %15

11:                                               ; preds = %2
  %12 = and i32 %9, %5
  %13 = zext i32 %12 to i64
  %14 = getelementptr inbounds %struct.bucket_t, ptr %7, i64 %13
  tail call void @_entry_remove(ptr noundef nonnull %0, ptr noundef %14, ptr noundef nonnull %10)
  br label %15

15:                                               ; preds = %2, %11
  ret i1 %.not
}

; Function Attrs: nounwind uwtable
declare hidden void @_entry_remove(ptr noundef, 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" }
attributes #1 = { 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, !10, i64 24}
!6 = !{!"iwhmap", !7, i64 0, !7, i64 4, !10, i64 8, !10, i64 16, !10, i64 24, !10, i64 32, !10, i64 40, !10, i64 48, !10, i64 56, !10, i64 64, !11, i64 72}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"_Bool", !8, i64 0}
!12 = !{!6, !10, i64 8}
!13 = !{!6, !7, i64 4}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass