; LLVM IR from pavlosdais/Abstract-Data-Types :: modules/Vector (vector)

; 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.vector_struct = type { ptr, i64, i64, i64, ptr, ptr }
%struct.n = type { ptr }

@.str.1 = external hidden unnamed_addr constant [88 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [15 x i8], align 1
@__PRETTY_FUNCTION__.vector_binary_search = external hidden unnamed_addr constant [75 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #1

; 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
define dso_local zeroext i1 @vector_binary_search(ptr noundef %0, ptr noundef %1, ptr noundef %2) #2 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = icmp ne ptr %13, null
  br i1 %14, label %15, label %16

15:                                               ; preds = %3
  br label %17

16:                                               ; preds = %3
  call void @__assert_fail(ptr noundef @.str.3, ptr noundef @.str.1, i32 noundef 197, ptr noundef @__PRETTY_FUNCTION__.vector_binary_search) #3
  unreachable

17:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  store i64 0, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.vector_struct, ptr %18, i32 0, i32 1
  %20 = load i64, ptr %19, align 8, !tbaa !11
  %21 = sub i64 %20, 1
  store i64 %21, ptr %9, align 8, !tbaa !9
  br label %22

22:                                               ; preds = %59, %17
  %23 = load i64, ptr %8, align 8, !tbaa !9
  %24 = load i64, ptr %9, align 8, !tbaa !9
  %25 = icmp ule i64 %23, %24
  br i1 %25, label %26, label %60

26:                                               ; preds = %22
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  %27 = load i64, ptr %8, align 8, !tbaa !9
  %28 = load i64, ptr %9, align 8, !tbaa !9
  %29 = load i64, ptr %8, align 8, !tbaa !9
  %30 = sub i64 %28, %29
  %31 = udiv i64 %30, 2
  %32 = add i64 %27, %31
  store i64 %32, ptr %10, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #4
  %33 = load ptr, ptr %7, align 8, !tbaa !5
  %34 = load ptr, ptr %5, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.vector_struct, ptr %34, i32 0, i32 0
  %36 = load ptr, ptr %35, align 8, !tbaa !13
  %37 = load i64, ptr %10, align 8, !tbaa !9
  %38 = getelementptr inbounds %struct.n, ptr %36, i64 %37
  %39 = getelementptr inbounds %struct.n, ptr %38, i32 0, i32 0
  %40 = load ptr, ptr %39, align 8, !tbaa !14
  %41 = load ptr, ptr %6, align 8, !tbaa !5
  %42 = call i32 %33(ptr noundef %40, ptr noundef %41)
  store i32 %42, ptr %11, align 4, !tbaa !16
  %43 = load i32, ptr %11, align 4, !tbaa !16
  %44 = icmp eq i32 %43, 0
  br i1 %44, label %45, label %46

45:                                               ; preds = %26
  store i1 true, ptr %4, align 1
  store i32 1, ptr %12, align 4
  br label %57

46:                                               ; preds = %26
  %47 = load i32, ptr %11, align 4, !tbaa !16
  %48 = icmp sgt i32 %47, 0
  br i1 %48, label %49, label %52

49:                                               ; preds = %46
  %50 = load i64, ptr %10, align 8, !tbaa !9
  %51 = sub i64 %50, 1
  store i64 %51, ptr %9, align 8, !tbaa !9
  br label %55

52:                                               ; preds = %46
  %53 = load i64, ptr %10, align 8, !tbaa !9
  %54 = add i64 %53, 1
  store i64 %54, ptr %8, align 8, !tbaa !9
  br label %55

55:                                               ; preds = %52, %49
  br label %56

56:                                               ; preds = %55
  store i32 0, ptr %12, align 4
  br label %57

57:                                               ; preds = %56, %45
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  %58 = load i32, ptr %12, align 4
  switch i32 %58, label %61 [
    i32 0, label %59
  ]

59:                                               ; preds = %57
  br label %22, !llvm.loop !18

60:                                               ; preds = %22
  store i1 false, ptr %4, align 1
  store i32 1, ptr %12, align 4
  br label %61

61:                                               ; preds = %60, %57
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  %62 = load i1, ptr %4, align 1
  ret i1 %62
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { noreturn nounwind "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 = { noreturn nounwind }
attributes #4 = { 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 = !{!"long", !7, i64 0}
!11 = !{!12, !10, i64 8}
!12 = !{!"vector_struct", !6, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !6, i64 32, !6, i64 40}
!13 = !{!12, !6, i64 0}
!14 = !{!15, !6, i64 0}
!15 = !{!"n", !6, i64 0}
!16 = !{!17, !17, i64 0}
!17 = !{!"int", !7, i64 0}
!18 = distinct !{!18, !19}
!19 = !{!"llvm.loop.mustprogress"}


; 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.n = type { ptr }

@.str.1 = external hidden unnamed_addr constant [88 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [15 x i8], align 1
@__PRETTY_FUNCTION__.vector_binary_search = external hidden unnamed_addr constant [75 x i8], align 1

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef zeroext i1 @vector_binary_search(ptr noundef readonly %0, ptr noundef %1, ptr nocapture noundef readonly %2) local_unnamed_addr #1 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %4, label %5

4:                                                ; preds = %3
  tail call void @__assert_fail(ptr noundef nonnull @.str.3, ptr noundef nonnull @.str.1, i32 noundef 197, ptr noundef nonnull @__PRETTY_FUNCTION__.vector_binary_search) #2
  unreachable

5:                                                ; preds = %3
  %6 = getelementptr inbounds i8, ptr %0, i64 8
  %7 = load i64, ptr %6, align 8, !tbaa !5
  %8 = add i64 %7, -1
  br label %9

9:                                                ; preds = %5, %17
  %.01730 = phi i64 [ 0, %5 ], [ %.118, %17 ]
  %.02029 = phi i64 [ %8, %5 ], [ %.121, %17 ]
  %10 = sub i64 %.02029, %.01730
  %11 = lshr i64 %10, 1
  %12 = add i64 %11, %.01730
  %13 = load ptr, ptr %0, align 8, !tbaa !11
  %14 = getelementptr inbounds %struct.n, ptr %13, i64 %12
  %15 = load ptr, ptr %14, align 8, !tbaa !12
  %16 = tail call i32 %2(ptr noundef %15, ptr noundef %1) #3
  %.not26 = icmp eq i32 %16, 0
  br i1 %.not26, label %.thread, label %17

17:                                               ; preds = %9
  %18 = icmp sgt i32 %16, 0
  %19 = add i64 %12, -1
  %20 = add i64 %12, 1
  %.121 = select i1 %18, i64 %19, i64 %.02029
  %.118 = select i1 %18, i64 %.01730, i64 %20
  %.not25.not = icmp ugt i64 %.118, %.121
  br i1 %.not25.not, label %.thread, label %9, !llvm.loop !14

.thread:                                          ; preds = %9, %17
  ret i1 %.not26
}

attributes #0 = { noreturn nounwind "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" }
attributes #2 = { noreturn nounwind }
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, !10, i64 8}
!6 = !{!"vector_struct", !7, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !7, i64 32, !7, i64 40}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = !{!13, !7, i64 0}
!13 = !{!"n", !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass