; LLVM IR from maksimandrianov/cdcontainers :: src (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_array = type { i64, i64, ptr, ptr }

@.str = external hidden unnamed_addr constant [10 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [74 x i8], align 1
@__PRETTY_FUNCTION__.cdc_array_append = external hidden unnamed_addr constant [59 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: nounwind uwtable
declare hidden i32 @reallocate(ptr noundef, i64 noundef) #2

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

13:                                               ; preds = %3
  br label %15

14:                                               ; preds = %3
  call void @__assert_fail(ptr noundef @.str, ptr noundef @.str.1, i32 noundef 259, ptr noundef @__PRETTY_FUNCTION__.cdc_array_append) #4
  unreachable

15:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #5
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.cdc_array, ptr %16, i32 0, i32 0
  %18 = load i64, ptr %17, align 8, !tbaa !11
  %19 = load i64, ptr %7, align 8, !tbaa !9
  %20 = add i64 %18, %19
  store i64 %20, ptr %8, align 8, !tbaa !9
  %21 = load i64, ptr %8, align 8, !tbaa !9
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.cdc_array, ptr %22, i32 0, i32 1
  %24 = load i64, ptr %23, align 8, !tbaa !13
  %25 = icmp ugt i64 %21, %24
  br i1 %25, label %26, label %41

26:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #5
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = load i64, ptr %8, align 8, !tbaa !9
  %29 = uitofp i64 %28 to float
  %30 = fmul float %29, 2.000000e+00
  %31 = fptoui float %30 to i64
  %32 = call i32 @reallocate(ptr noundef %27, i64 noundef %31)
  store i32 %32, ptr %9, align 4, !tbaa !14
  %33 = load i32, ptr %9, align 4, !tbaa !14
  %34 = icmp ne i32 %33, 0
  br i1 %34, label %35, label %37

35:                                               ; preds = %26
  %36 = load i32, ptr %9, align 4, !tbaa !14
  store i32 %36, ptr %4, align 4
  store i32 1, ptr %10, align 4
  br label %38

37:                                               ; preds = %26
  store i32 0, ptr %10, align 4
  br label %38

38:                                               ; preds = %37, %35
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #5
  %39 = load i32, ptr %10, align 4
  switch i32 %39, label %57 [
    i32 0, label %40
  ]

40:                                               ; preds = %38
  br label %41

41:                                               ; preds = %40, %15
  %42 = load ptr, ptr %5, align 8, !tbaa !5
  %43 = getelementptr inbounds %struct.cdc_array, ptr %42, i32 0, i32 2
  %44 = load ptr, ptr %43, align 8, !tbaa !16
  %45 = load ptr, ptr %5, align 8, !tbaa !5
  %46 = getelementptr inbounds %struct.cdc_array, ptr %45, i32 0, i32 0
  %47 = load i64, ptr %46, align 8, !tbaa !11
  %48 = getelementptr inbounds ptr, ptr %44, i64 %47
  %49 = load ptr, ptr %6, align 8, !tbaa !5
  %50 = load i64, ptr %7, align 8, !tbaa !9
  %51 = mul i64 %50, 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %48, ptr align 8 %49, i64 %51, i1 false)
  %52 = load i64, ptr %7, align 8, !tbaa !9
  %53 = load ptr, ptr %5, align 8, !tbaa !5
  %54 = getelementptr inbounds %struct.cdc_array, ptr %53, i32 0, i32 0
  %55 = load i64, ptr %54, align 8, !tbaa !11
  %56 = add i64 %55, %52
  store i64 %56, ptr %54, align 8, !tbaa !11
  store i32 0, ptr %4, align 4
  store i32 1, ptr %10, align 4
  br label %57

57:                                               ; preds = %41, %38
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  %58 = load i32, ptr %4, align 4
  ret i32 %58
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { noreturn nounwind }
attributes #5 = { 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 0}
!12 = !{!"cdc_array", !10, i64 0, !10, i64 8, !6, i64 16, !6, i64 24}
!13 = !{!12, !10, i64 8}
!14 = !{!15, !15, i64 0}
!15 = !{!"int", !7, i64 0}
!16 = !{!12, !6, i64 16}


; 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 [74 x i8], align 1
@__PRETTY_FUNCTION__.cdc_array_append = external hidden unnamed_addr constant [59 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
declare hidden i32 @reallocate(ptr noundef, i64 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local i32 @cdc_array_append(ptr noundef %0, ptr nocapture noundef readonly %1, i64 noundef %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, ptr noundef nonnull @.str.1, i32 noundef 259, ptr noundef nonnull @__PRETTY_FUNCTION__.cdc_array_append) #3
  unreachable

5:                                                ; preds = %3
  %6 = load i64, ptr %0, align 8, !tbaa !5
  %7 = add i64 %6, %2
  %8 = getelementptr inbounds i8, ptr %0, i64 8
  %9 = load i64, ptr %8, align 8, !tbaa !11
  %10 = icmp ugt i64 %7, %9
  br i1 %10, label %11, label %16

11:                                               ; preds = %5
  %12 = uitofp i64 %7 to float
  %13 = fmul float %12, 2.000000e+00
  %14 = fptoui float %13 to i64
  %15 = tail call i32 @reallocate(ptr noundef nonnull %0, i64 noundef %14)
  %.not19 = icmp eq i32 %15, 0
  br i1 %.not19, label %._crit_edge, label %24

._crit_edge:                                      ; preds = %11
  %.pre = load i64, ptr %0, align 8, !tbaa !5
  br label %16

16:                                               ; preds = %._crit_edge, %5
  %17 = phi i64 [ %.pre, %._crit_edge ], [ %6, %5 ]
  %18 = getelementptr inbounds i8, ptr %0, i64 16
  %19 = load ptr, ptr %18, align 8, !tbaa !12
  %20 = getelementptr inbounds ptr, ptr %19, i64 %17
  %21 = shl i64 %2, 3
  tail call void @llvm.memcpy.p0.p0.i64(ptr align 8 %20, ptr align 8 %1, i64 %21, i1 false)
  %22 = load i64, ptr %0, align 8, !tbaa !5
  %23 = add i64 %22, %2
  store i64 %23, ptr %0, align 8, !tbaa !5
  br label %24

24:                                               ; preds = %11, %16
  %.1 = phi i32 [ 0, %16 ], [ %15, %11 ]
  ret i32 %.1
}

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #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 = { 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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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_array", !7, i64 0, !7, i64 8, !10, i64 16, !10, i64 24}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 8}
!12 = !{!6, !10, i64 16}


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