; LLVM IR from maksimandrianov/cdcontainers :: src (heap)

; 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_heap = type { ptr }

@.str = external hidden unnamed_addr constant [10 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [73 x i8], align 1
@__PRETTY_FUNCTION__.cdc_heap_merge = external hidden unnamed_addr constant [49 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [14 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_heap_merge(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 225, ptr noundef @__PRETTY_FUNCTION__.cdc_heap_merge) #4
  unreachable

12:                                               ; preds = %10
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = icmp ne ptr %13, null
  br i1 %14, label %15, label %16

15:                                               ; preds = %12
  br label %17

16:                                               ; preds = %12
  call void @__assert_fail(ptr noundef @.str.8, ptr noundef @.str.1, i32 noundef 226, ptr noundef @__PRETTY_FUNCTION__.cdc_heap_merge) #4
  unreachable

17:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.cdc_heap, ptr %18, i32 0, i32 0
  %20 = load ptr, ptr %19, align 8, !tbaa !9
  %21 = load ptr, ptr %5, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.cdc_heap, ptr %21, i32 0, i32 0
  %23 = load ptr, ptr %22, align 8, !tbaa !9
  %24 = call i32 @cdc_array_append_move(ptr noundef %20, ptr noundef %23)
  store i32 %24, ptr %6, align 4, !tbaa !11
  %25 = load i32, ptr %6, align 4, !tbaa !11
  %26 = icmp ne i32 %25, 0
  br i1 %26, label %27, label %29

27:                                               ; preds = %17
  %28 = load i32, ptr %6, align 4, !tbaa !11
  store i32 %28, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %31

29:                                               ; preds = %17
  %30 = load ptr, ptr %4, align 8, !tbaa !5
  call void @build_heap(ptr noundef %30)
  store i32 0, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %31

31:                                               ; preds = %29, %27
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  %32 = load i32, ptr %3, align 4
  ret i32 %32
}

declare i32 @cdc_array_append_move(ptr noundef, ptr noundef) #3

; Function Attrs: nounwind uwtable
declare hidden void @build_heap(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 = { "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 #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, !6, i64 0}
!10 = !{!"cdc_heap", !6, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}


; 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 [73 x i8], align 1
@__PRETTY_FUNCTION__.cdc_heap_merge = external hidden unnamed_addr constant [49 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [14 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_heap_merge(ptr noundef %0, ptr noundef readonly %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 225, ptr noundef nonnull @__PRETTY_FUNCTION__.cdc_heap_merge) #3
  unreachable

4:                                                ; preds = %2
  %.not10 = icmp eq ptr %1, null
  br i1 %.not10, label %5, label %6

5:                                                ; preds = %4
  tail call void @__assert_fail(ptr noundef nonnull @.str.8, ptr noundef nonnull @.str.1, i32 noundef 226, ptr noundef nonnull @__PRETTY_FUNCTION__.cdc_heap_merge) #3
  unreachable

6:                                                ; preds = %4
  %7 = load ptr, ptr %0, align 8, !tbaa !5
  %8 = load ptr, ptr %1, align 8, !tbaa !5
  %9 = tail call i32 @cdc_array_append_move(ptr noundef %7, ptr noundef %8) #4
  %.not11 = icmp eq i32 %9, 0
  br i1 %.not11, label %10, label %11

10:                                               ; preds = %6
  tail call void @build_heap(ptr noundef nonnull %0)
  br label %11

11:                                               ; preds = %6, %10
  ret i32 %9
}

declare i32 @cdc_array_append_move(ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare hidden void @build_heap(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 = { "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, !7, i64 0}
!6 = !{!"cdc_heap", !7, i64 0}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}


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