; LLVM IR from maksimandrianov/cdcontainers :: src (circular-array)

; 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.cdc_circular_array = type { ptr, i64, i64, i64, i64, ptr }

@.str = external hidden unnamed_addr constant [10 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [83 x i8], align 1
@__PRETTY_FUNCTION__.cdc_circular_array_push_back = external hidden unnamed_addr constant [71 x i8], align 1

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

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @cdc_circular_array_push_back(ptr noundef %0, ptr noundef %1) #2 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = icmp ne ptr %8, null
  br i1 %9, label %10, label %11

10:                                               ; preds = %2
  br label %12

11:                                               ; preds = %2
  call void @__assert_fail(ptr noundef @.str, ptr noundef @.str.1, i32 noundef 392, ptr noundef @__PRETTY_FUNCTION__.cdc_circular_array_push_back) #3
  unreachable

12:                                               ; preds = %10
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = call zeroext i1 @should_grow(ptr noundef %13)
  br i1 %14, label %15, label %26

15:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = call i32 @grow(ptr noundef %16)
  store i32 %17, ptr %6, align 4, !tbaa !9
  %18 = load i32, ptr %6, align 4, !tbaa !9
  %19 = icmp ne i32 %18, 0
  br i1 %19, label %20, label %22

20:                                               ; preds = %15
  %21 = load i32, ptr %6, align 4, !tbaa !9
  store i32 %21, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %23

22:                                               ; preds = %15
  store i32 0, ptr %7, align 4
  br label %23

23:                                               ; preds = %22, %20
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  %24 = load i32, ptr %7, align 4
  switch i32 %24, label %52 [
    i32 0, label %25
    i32 1, label %50
  ]

25:                                               ; preds = %23
  br label %26

26:                                               ; preds = %25, %12
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.cdc_circular_array, ptr %28, i32 0, i32 0
  %30 = load ptr, ptr %29, align 8, !tbaa !11
  %31 = load ptr, ptr %4, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.cdc_circular_array, ptr %31, i32 0, i32 2
  %33 = load i64, ptr %32, align 8, !tbaa !14
  %34 = getelementptr inbounds ptr, ptr %30, i64 %33
  store ptr %27, ptr %34, align 8, !tbaa !5
  %35 = load ptr, ptr %4, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.cdc_circular_array, ptr %35, i32 0, i32 2
  %37 = load i64, ptr %36, align 8, !tbaa !14
  %38 = add i64 %37, 1
  %39 = load ptr, ptr %4, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.cdc_circular_array, ptr %39, i32 0, i32 4
  %41 = load i64, ptr %40, align 8, !tbaa !15
  %42 = sub i64 %41, 1
  %43 = and i64 %38, %42
  %44 = load ptr, ptr %4, align 8, !tbaa !5
  %45 = getelementptr inbounds %struct.cdc_circular_array, ptr %44, i32 0, i32 2
  store i64 %43, ptr %45, align 8, !tbaa !14
  %46 = load ptr, ptr %4, align 8, !tbaa !5
  %47 = getelementptr inbounds %struct.cdc_circular_array, ptr %46, i32 0, i32 3
  %48 = load i64, ptr %47, align 8, !tbaa !16
  %49 = add i64 %48, 1
  store i64 %49, ptr %47, align 8, !tbaa !16
  store i32 0, ptr %3, align 4
  br label %50

50:                                               ; preds = %26, %23
  %51 = load i32, ptr %3, align 4
  ret i32 %51

52:                                               ; preds = %23
  unreachable
}

; Function Attrs: nounwind uwtable
declare hidden zeroext i1 @should_grow(ptr noundef) #2

; Function Attrs: nounwind uwtable
declare hidden i32 @grow(ptr noundef) #2

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"cdc_circular_array", !6, i64 0, !13, i64 8, !13, i64 16, !13, i64 24, !13, i64 32, !6, i64 40}
!13 = !{!"long", !7, i64 0}
!14 = !{!12, !13, i64 16}
!15 = !{!12, !13, i64 32}
!16 = !{!12, !13, i64 24}


; 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"

@.str = external hidden unnamed_addr constant [10 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [83 x i8], align 1
@__PRETTY_FUNCTION__.cdc_circular_array_push_back = external hidden unnamed_addr constant [71 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 i32 @cdc_circular_array_push_back(ptr noundef %0, ptr noundef %1) local_unnamed_addr #1 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %3, label %4

3:                                                ; preds = %2
  tail call void @__assert_fail(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 392, ptr noundef nonnull @__PRETTY_FUNCTION__.cdc_circular_array_push_back) #2
  unreachable

4:                                                ; preds = %2
  %5 = tail call zeroext i1 @should_grow(ptr noundef nonnull %0)
  br i1 %5, label %6, label %8

6:                                                ; preds = %4
  %7 = tail call i32 @grow(ptr noundef nonnull %0)
  %.not15.not = icmp eq i32 %7, 0
  br i1 %.not15.not, label %8, label %21

8:                                                ; preds = %6, %4
  %9 = load ptr, ptr %0, align 8, !tbaa !5
  %10 = getelementptr inbounds i8, ptr %0, i64 16
  %11 = load i64, ptr %10, align 8, !tbaa !11
  %12 = getelementptr inbounds ptr, ptr %9, i64 %11
  store ptr %1, ptr %12, align 8, !tbaa !12
  %13 = add i64 %11, 1
  %14 = getelementptr inbounds i8, ptr %0, i64 32
  %15 = load i64, ptr %14, align 8, !tbaa !13
  %16 = add i64 %15, -1
  %17 = and i64 %16, %13
  store i64 %17, ptr %10, align 8, !tbaa !11
  %18 = getelementptr inbounds i8, ptr %0, i64 24
  %19 = load i64, ptr %18, align 8, !tbaa !14
  %20 = add i64 %19, 1
  store i64 %20, ptr %18, align 8, !tbaa !14
  br label %21

21:                                               ; preds = %6, %8
  %.1 = phi i32 [ %7, %6 ], [ 0, %8 ]
  ret i32 %.1
}

; Function Attrs: nounwind uwtable
declare hidden zeroext i1 @should_grow(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare hidden i32 @grow(ptr noundef) local_unnamed_addr #1

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 }

!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, !7, i64 0}
!6 = !{!"cdc_circular_array", !7, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !10, 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, !10, i64 16}
!12 = !{!7, !7, i64 0}
!13 = !{!6, !10, i64 32}
!14 = !{!6, !10, i64 24}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass