; 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 }
%struct.cdc_data_info = type { ptr, ptr, ptr, ptr, ptr, i64, i64 }

@.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_pop_back = external hidden unnamed_addr constant [53 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [12 x i8], align 1

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

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

5:                                                ; preds = %1
  br label %7

6:                                                ; preds = %1
  call void @__assert_fail(ptr noundef @.str, ptr noundef @.str.1, i32 noundef 409, ptr noundef @__PRETTY_FUNCTION__.cdc_circular_array_pop_back) #2
  unreachable

7:                                                ; preds = %5
  %8 = load ptr, ptr %2, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.cdc_circular_array, ptr %8, i32 0, i32 3
  %10 = load i64, ptr %9, align 8, !tbaa !9
  %11 = icmp ugt i64 %10, 0
  br i1 %11, label %12, label %13

12:                                               ; preds = %7
  br label %14

13:                                               ; preds = %7
  call void @__assert_fail(ptr noundef @.str.5, ptr noundef @.str.1, i32 noundef 410, ptr noundef @__PRETTY_FUNCTION__.cdc_circular_array_pop_back) #2
  unreachable

14:                                               ; preds = %12
  %15 = load ptr, ptr %2, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.cdc_circular_array, ptr %15, i32 0, i32 5
  %17 = load ptr, ptr %16, align 8, !tbaa !12
  %18 = icmp ne ptr %17, null
  br i1 %18, label %19, label %40

19:                                               ; preds = %14
  %20 = load ptr, ptr %2, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.cdc_circular_array, ptr %20, i32 0, i32 5
  %22 = load ptr, ptr %21, align 8, !tbaa !12
  %23 = getelementptr inbounds %struct.cdc_data_info, ptr %22, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8, !tbaa !13
  %25 = icmp ne ptr %24, null
  br i1 %25, label %26, label %40

26:                                               ; preds = %19
  %27 = load ptr, ptr %2, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.cdc_circular_array, ptr %27, i32 0, i32 5
  %29 = load ptr, ptr %28, align 8, !tbaa !12
  %30 = getelementptr inbounds %struct.cdc_data_info, ptr %29, i32 0, i32 0
  %31 = load ptr, ptr %30, align 8, !tbaa !13
  %32 = load ptr, ptr %2, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.cdc_circular_array, ptr %32, i32 0, i32 0
  %34 = load ptr, ptr %33, align 8, !tbaa !15
  %35 = load ptr, ptr %2, 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 !16
  %38 = getelementptr inbounds ptr, ptr %34, i64 %37
  %39 = load ptr, ptr %38, align 8, !tbaa !5
  call void %31(ptr noundef %39)
  br label %40

40:                                               ; preds = %26, %19, %14
  %41 = load ptr, ptr %2, align 8, !tbaa !5
  %42 = getelementptr inbounds %struct.cdc_circular_array, ptr %41, i32 0, i32 2
  %43 = load i64, ptr %42, align 8, !tbaa !16
  %44 = load ptr, ptr %2, align 8, !tbaa !5
  %45 = getelementptr inbounds %struct.cdc_circular_array, ptr %44, i32 0, i32 4
  %46 = load i64, ptr %45, align 8, !tbaa !17
  %47 = add i64 %43, %46
  %48 = sub i64 %47, 1
  %49 = load ptr, ptr %2, align 8, !tbaa !5
  %50 = getelementptr inbounds %struct.cdc_circular_array, ptr %49, i32 0, i32 4
  %51 = load i64, ptr %50, align 8, !tbaa !17
  %52 = sub i64 %51, 1
  %53 = and i64 %48, %52
  %54 = load ptr, ptr %2, align 8, !tbaa !5
  %55 = getelementptr inbounds %struct.cdc_circular_array, ptr %54, i32 0, i32 2
  store i64 %53, ptr %55, align 8, !tbaa !16
  %56 = load ptr, ptr %2, align 8, !tbaa !5
  %57 = getelementptr inbounds %struct.cdc_circular_array, ptr %56, i32 0, i32 3
  %58 = load i64, ptr %57, align 8, !tbaa !9
  %59 = add i64 %58, -1
  store i64 %59, ptr %57, align 8, !tbaa !9
  ret void
}

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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !11, i64 24}
!10 = !{!"cdc_circular_array", !6, i64 0, !11, i64 8, !11, i64 16, !11, i64 24, !11, i64 32, !6, i64 40}
!11 = !{!"long", !7, i64 0}
!12 = !{!10, !6, i64 40}
!13 = !{!14, !6, i64 0}
!14 = !{!"cdc_data_info", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !11, i64 40, !11, i64 48}
!15 = !{!10, !6, i64 0}
!16 = !{!10, !11, i64 16}
!17 = !{!10, !11, i64 32}


; 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_pop_back = external hidden unnamed_addr constant [53 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [12 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 void @cdc_circular_array_pop_back(ptr noundef %0) local_unnamed_addr #1 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %2, label %3

2:                                                ; preds = %1
  tail call void @__assert_fail(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 409, ptr noundef nonnull @__PRETTY_FUNCTION__.cdc_circular_array_pop_back) #2
  unreachable

3:                                                ; preds = %1
  %4 = getelementptr inbounds i8, ptr %0, i64 24
  %5 = load i64, ptr %4, align 8, !tbaa !5
  %.not14 = icmp eq i64 %5, 0
  br i1 %.not14, label %6, label %7

6:                                                ; preds = %3
  tail call void @__assert_fail(ptr noundef nonnull @.str.5, ptr noundef nonnull @.str.1, i32 noundef 410, ptr noundef nonnull @__PRETTY_FUNCTION__.cdc_circular_array_pop_back) #2
  unreachable

7:                                                ; preds = %3
  %8 = getelementptr inbounds i8, ptr %0, i64 40
  %9 = load ptr, ptr %8, align 8, !tbaa !11
  %.not15 = icmp eq ptr %9, null
  br i1 %.not15, label %18, label %10

10:                                               ; preds = %7
  %11 = load ptr, ptr %9, align 8, !tbaa !12
  %.not16 = icmp eq ptr %11, null
  br i1 %.not16, label %18, label %12

12:                                               ; preds = %10
  %13 = load ptr, ptr %0, align 8, !tbaa !14
  %14 = getelementptr inbounds i8, ptr %0, i64 16
  %15 = load i64, ptr %14, align 8, !tbaa !15
  %16 = getelementptr inbounds ptr, ptr %13, i64 %15
  %17 = load ptr, ptr %16, align 8, !tbaa !16
  tail call void %11(ptr noundef %17) #3
  %.pre = load i64, ptr %4, align 8, !tbaa !5
  br label %18

18:                                               ; preds = %12, %10, %7
  %19 = phi i64 [ %.pre, %12 ], [ %5, %10 ], [ %5, %7 ]
  %20 = getelementptr inbounds i8, ptr %0, i64 16
  %21 = load i64, ptr %20, align 8, !tbaa !15
  %22 = getelementptr inbounds i8, ptr %0, i64 32
  %23 = load i64, ptr %22, align 8, !tbaa !17
  %24 = add i64 %23, -1
  %25 = add i64 %24, %21
  %26 = and i64 %25, %24
  store i64 %26, ptr %20, align 8, !tbaa !15
  %27 = add i64 %19, -1
  store i64 %27, ptr %4, align 8, !tbaa !5
  ret void
}

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 24}
!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, !7, i64 40}
!12 = !{!13, !7, i64 0}
!13 = !{!"cdc_data_info", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !10, i64 40, !10, i64 48}
!14 = !{!6, !7, i64 0}
!15 = !{!6, !10, i64 16}
!16 = !{!7, !7, i64 0}
!17 = !{!6, !10, i64 32}


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