; LLVM IR from kala13x/libxutils :: src/data (buf)

; 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.XByteBuffer = type { ptr, i64, i64, i16, i16, i32 }

; 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) #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @XByteBuffer_Reserve(ptr noundef, i64 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @XByteBuffer_Add(ptr noundef %0, ptr noundef %1, i64 noundef %2) #1 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  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
  %8 = load ptr, ptr %6, align 8, !tbaa !5
  %9 = icmp eq ptr %8, null
  br i1 %9, label %13, label %10

10:                                               ; preds = %3
  %11 = load i64, ptr %7, align 8, !tbaa !9
  %12 = icmp ne i64 %11, 0
  br i1 %12, label %14, label %13

13:                                               ; preds = %10, %3
  store i32 0, ptr %4, align 4
  br label %48

14:                                               ; preds = %10
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = load i64, ptr %7, align 8, !tbaa !9
  %17 = add i64 %16, 1
  %18 = call i32 @XByteBuffer_Reserve(ptr noundef %15, i64 noundef %17)
  %19 = icmp sle i32 %18, 0
  br i1 %19, label %20, label %21

20:                                               ; preds = %14
  store i32 -1, ptr %4, align 4
  br label %48

21:                                               ; preds = %14
  br label %22

22:                                               ; preds = %21
  %23 = load ptr, ptr %5, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.XByteBuffer, ptr %23, i32 0, i32 0
  %25 = load ptr, ptr %24, align 8, !tbaa !11
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.XByteBuffer, ptr %26, i32 0, i32 2
  %28 = load i64, ptr %27, align 8, !tbaa !15
  %29 = getelementptr inbounds i8, ptr %25, i64 %28
  %30 = load ptr, ptr %6, align 8, !tbaa !5
  %31 = load i64, ptr %7, align 8, !tbaa !9
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %29, ptr align 1 %30, i64 %31, i1 false)
  %32 = load i64, ptr %7, align 8, !tbaa !9
  %33 = load ptr, ptr %5, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.XByteBuffer, ptr %33, i32 0, i32 2
  %35 = load i64, ptr %34, align 8, !tbaa !15
  %36 = add i64 %35, %32
  store i64 %36, ptr %34, align 8, !tbaa !15
  %37 = load ptr, ptr %5, align 8, !tbaa !5
  %38 = getelementptr inbounds %struct.XByteBuffer, ptr %37, i32 0, i32 0
  %39 = load ptr, ptr %38, align 8, !tbaa !11
  %40 = load ptr, ptr %5, align 8, !tbaa !5
  %41 = getelementptr inbounds %struct.XByteBuffer, ptr %40, i32 0, i32 2
  %42 = load i64, ptr %41, align 8, !tbaa !15
  %43 = getelementptr inbounds i8, ptr %39, i64 %42
  store i8 0, ptr %43, align 1, !tbaa !16
  %44 = load ptr, ptr %5, align 8, !tbaa !5
  %45 = getelementptr inbounds %struct.XByteBuffer, ptr %44, i32 0, i32 2
  %46 = load i64, ptr %45, align 8, !tbaa !15
  %47 = trunc i64 %46 to i32
  store i32 %47, ptr %4, align 4
  br label %48

48:                                               ; preds = %22, %20, %13
  %49 = load i32, ptr %4, align 4
  ret i32 %49
}

attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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" }

!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, !6, i64 0}
!12 = !{!"XByteBuffer", !6, i64 0, !10, i64 8, !10, i64 16, !13, i64 24, !13, i64 26, !14, i64 28}
!13 = !{!"short", !7, i64 0}
!14 = !{!"int", !7, i64 0}
!15 = !{!12, !10, i64 16}
!16 = !{!7, !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"

; 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) #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @XByteBuffer_Reserve(ptr noundef, i64 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local i32 @XByteBuffer_Add(ptr noundef %0, ptr noundef readonly %1, i64 noundef %2) local_unnamed_addr #1 {
  %4 = icmp ne ptr %1, null
  %5 = icmp ne i64 %2, 0
  %or.cond = and i1 %4, %5
  br i1 %or.cond, label %6, label %21

6:                                                ; preds = %3
  %7 = add i64 %2, 1
  %8 = tail call i32 @XByteBuffer_Reserve(ptr noundef %0, i64 noundef %7)
  %9 = icmp slt i32 %8, 1
  br i1 %9, label %21, label %10

10:                                               ; preds = %6
  %11 = load ptr, ptr %0, align 8, !tbaa !5
  %12 = getelementptr inbounds i8, ptr %0, i64 16
  %13 = load i64, ptr %12, align 8, !tbaa !13
  %14 = getelementptr inbounds i8, ptr %11, i64 %13
  tail call void @llvm.memcpy.p0.p0.i64(ptr align 1 %14, ptr nonnull align 1 %1, i64 %2, i1 false)
  %15 = load i64, ptr %12, align 8, !tbaa !13
  %16 = add i64 %15, %2
  store i64 %16, ptr %12, align 8, !tbaa !13
  %17 = load ptr, ptr %0, align 8, !tbaa !5
  %18 = getelementptr inbounds i8, ptr %17, i64 %16
  store i8 0, ptr %18, align 1, !tbaa !14
  %19 = load i64, ptr %12, align 8, !tbaa !13
  %20 = trunc i64 %19 to i32
  br label %21

21:                                               ; preds = %6, %3, %10
  %.0 = phi i32 [ %20, %10 ], [ 0, %3 ], [ -1, %6 ]
  ret i32 %.0
}

attributes #0 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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" }

!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 = !{!"XByteBuffer", !7, i64 0, !10, i64 8, !10, i64 16, !11, i64 24, !11, i64 26, !12, i64 28}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!"short", !8, i64 0}
!12 = !{!"int", !8, i64 0}
!13 = !{!6, !10, i64 16}
!14 = !{!8, !8, i64 0}


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