; LLVM IR from buzz-lang/Buzz :: src/buzz (buzzdarray)

; 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.buzzdarray_s = type { ptr, i64, i32, i32, ptr }

; Function Attrs: nounwind uwtable
declare dso_local void @buzzdarray_elem_destroy(i32 noundef, ptr 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 allocsize(0,1)
declare noalias ptr @calloc(i64 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 allocsize(0)
declare noalias ptr @malloc(i64 noundef) #3

; 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) #4

; Function Attrs: nounwind uwtable
define dso_local ptr @buzzdarray_frombuffer(ptr noundef %0, i32 noundef %1, i32 noundef %2, ptr noundef %3) #0 {
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store i32 %2, ptr %7, align 4, !tbaa !9
  store ptr %3, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #5
  %10 = call noalias ptr @calloc(i64 noundef 1, i64 noundef 32) #6
  store ptr %10, ptr %9, align 8, !tbaa !5
  %11 = load i32, ptr %6, align 4, !tbaa !9
  %12 = load i32, ptr %7, align 4, !tbaa !9
  %13 = udiv i32 %11, %12
  %14 = load ptr, ptr %9, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.buzzdarray_s, ptr %14, i32 0, i32 3
  store i32 %13, ptr %15, align 4, !tbaa !11
  %16 = load i32, ptr %7, align 4, !tbaa !9
  %17 = load ptr, ptr %9, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.buzzdarray_s, ptr %17, i32 0, i32 2
  store i32 %16, ptr %18, align 8, !tbaa !14
  %19 = load ptr, ptr %8, align 8, !tbaa !5
  %20 = icmp ne ptr %19, null
  br i1 %20, label %21, label %23

21:                                               ; preds = %4
  %22 = load ptr, ptr %8, align 8, !tbaa !5
  br label %24

23:                                               ; preds = %4
  br label %24

24:                                               ; preds = %23, %21
  %25 = phi ptr [ %22, %21 ], [ @buzzdarray_elem_destroy, %23 ]
  %26 = load ptr, ptr %9, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.buzzdarray_s, ptr %26, i32 0, i32 4
  store ptr %25, ptr %27, align 8, !tbaa !15
  %28 = load ptr, ptr %9, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.buzzdarray_s, ptr %28, i32 0, i32 3
  %30 = load i32, ptr %29, align 4, !tbaa !11
  %31 = zext i32 %30 to i64
  %32 = load ptr, ptr %9, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.buzzdarray_s, ptr %32, i32 0, i32 1
  store i64 %31, ptr %33, align 8, !tbaa !16
  %34 = load i32, ptr %6, align 4, !tbaa !9
  %35 = zext i32 %34 to i64
  %36 = call noalias ptr @malloc(i64 noundef %35) #7
  %37 = load ptr, ptr %9, align 8, !tbaa !5
  %38 = getelementptr inbounds %struct.buzzdarray_s, ptr %37, i32 0, i32 0
  store ptr %36, ptr %38, align 8, !tbaa !17
  %39 = load ptr, ptr %9, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.buzzdarray_s, ptr %39, i32 0, i32 0
  %41 = load ptr, ptr %40, align 8, !tbaa !17
  %42 = load ptr, ptr %5, align 8, !tbaa !5
  %43 = load i32, ptr %6, align 4, !tbaa !9
  %44 = zext i32 %43 to i64
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %41, ptr align 1 %42, i64 %44, i1 false)
  %45 = load ptr, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  ret ptr %45
}

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nounwind allocsize(0,1) "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 = { nounwind allocsize(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 #4 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { nounwind }
attributes #6 = { nounwind allocsize(0,1) }
attributes #7 = { nounwind allocsize(0) }

!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, !10, i64 20}
!12 = !{!"buzzdarray_s", !6, i64 0, !13, i64 8, !10, i64 16, !10, i64 20, !6, i64 24}
!13 = !{!"long", !7, i64 0}
!14 = !{!12, !10, i64 16}
!15 = !{!12, !6, i64 24}
!16 = !{!12, !13, i64 8}
!17 = !{!12, !6, 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"

; Function Attrs: nounwind uwtable
declare dso_local void @buzzdarray_elem_destroy(i32 noundef, ptr noundef, ptr noundef) #0

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @calloc(i64 noundef, i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #2

; 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) #3

; Function Attrs: mustprogress nofree nounwind willreturn uwtable
define dso_local noalias noundef ptr @buzzdarray_frombuffer(ptr nocapture noundef readonly %0, i32 noundef %1, i32 noundef %2, ptr noundef %3) local_unnamed_addr #4 {
  %5 = tail call noalias dereferenceable_or_null(32) ptr @calloc(i64 noundef 1, i64 noundef 32) #5
  %6 = udiv i32 %1, %2
  %7 = getelementptr inbounds i8, ptr %5, i64 20
  store i32 %6, ptr %7, align 4, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %5, i64 16
  store i32 %2, ptr %8, align 8, !tbaa !12
  %.not = icmp eq ptr %3, null
  %9 = select i1 %.not, ptr @buzzdarray_elem_destroy, ptr %3
  %10 = getelementptr inbounds i8, ptr %5, i64 24
  store ptr %9, ptr %10, align 8, !tbaa !13
  %11 = zext i32 %6 to i64
  %12 = getelementptr inbounds i8, ptr %5, i64 8
  store i64 %11, ptr %12, align 8, !tbaa !14
  %13 = zext i32 %1 to i64
  %14 = tail call noalias ptr @malloc(i64 noundef %13) #6
  store ptr %14, ptr %5, align 8, !tbaa !15
  tail call void @llvm.memcpy.p0.p0.i64(ptr align 8 %14, ptr align 1 %0, i64 %13, i1 false)
  ret ptr %5
}

attributes #0 = { 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 #1 = { mustprogress nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { mustprogress nofree nounwind willreturn 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 #5 = { nounwind allocsize(0,1) }
attributes #6 = { nounwind allocsize(0) }

!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, !11, i64 20}
!6 = !{!"buzzdarray_s", !7, i64 0, !10, i64 8, !11, i64 16, !11, i64 20, !7, i64 24}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!"int", !8, i64 0}
!12 = !{!6, !11, i64 16}
!13 = !{!6, !7, i64 24}
!14 = !{!6, !10, i64 8}
!15 = !{!6, !7, i64 0}


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