; LLVM IR from yudi-matsuzake/libgenerics :: src (vector)

; 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.vector_t = type { ptr, i64, i64, i64 }

; Function Attrs: nounwind uwtable
declare dso_local i32 @vector_resize_buffer(ptr noundef, i64 noundef) #0

; 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) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @vector_append_buffer(ptr noundef %0, ptr noundef %1, i64 noundef %2) #0 {
  %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 %5, align 8, !tbaa !5
  %9 = icmp ne ptr %8, null
  br i1 %9, label %11, label %10

10:                                               ; preds = %3
  store i32 1, ptr %4, align 4
  br label %45

11:                                               ; preds = %3
  %12 = load ptr, ptr %6, align 8, !tbaa !5
  %13 = icmp ne ptr %12, null
  br i1 %13, label %15, label %14

14:                                               ; preds = %11
  store i32 4, ptr %4, align 4
  br label %45

15:                                               ; preds = %11
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = load ptr, ptr %5, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.vector_t, ptr %17, i32 0, i32 1
  %19 = load i64, ptr %18, align 8, !tbaa !11
  %20 = load i64, ptr %7, align 8, !tbaa !9
  %21 = add i64 %19, %20
  %22 = call i32 @vector_resize_buffer(ptr noundef %16, i64 noundef %21)
  %23 = load ptr, ptr %5, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.vector_t, ptr %23, i32 0, i32 0
  %25 = load ptr, ptr %24, align 8, !tbaa !13
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.vector_t, ptr %26, i32 0, i32 1
  %28 = load i64, ptr %27, align 8, !tbaa !11
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.vector_t, ptr %29, i32 0, i32 3
  %31 = load i64, ptr %30, align 8, !tbaa !14
  %32 = mul i64 %28, %31
  %33 = getelementptr inbounds i8, ptr %25, i64 %32
  %34 = load ptr, ptr %6, align 8, !tbaa !5
  %35 = load i64, ptr %7, align 8, !tbaa !9
  %36 = load ptr, ptr %5, align 8, !tbaa !5
  %37 = getelementptr inbounds %struct.vector_t, ptr %36, i32 0, i32 3
  %38 = load i64, ptr %37, align 8, !tbaa !14
  %39 = mul i64 %35, %38
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %33, ptr align 1 %34, i64 %39, i1 false)
  %40 = load i64, ptr %7, align 8, !tbaa !9
  %41 = load ptr, ptr %5, align 8, !tbaa !5
  %42 = getelementptr inbounds %struct.vector_t, ptr %41, i32 0, i32 1
  %43 = load i64, ptr %42, align 8, !tbaa !11
  %44 = add i64 %43, %40
  store i64 %44, ptr %42, align 8, !tbaa !11
  store i32 0, ptr %4, align 4
  br label %45

45:                                               ; preds = %15, %14, %10
  %46 = load i32, ptr %4, align 4
  ret i32 %46
}

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 nounwind willreturn memory(argmem: readwrite) }

!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 8}
!12 = !{!"vector_t", !6, i64 0, !10, i64 8, !10, i64 16, !10, i64 24}
!13 = !{!12, !6, i64 0}
!14 = !{!12, !10, i64 24}


; 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 i32 @vector_resize_buffer(ptr noundef, i64 noundef) local_unnamed_addr #0

; 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) #1

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 5) i32 @vector_append_buffer(ptr noundef %0, ptr noundef readonly %1, i64 noundef %2) local_unnamed_addr #0 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %19, label %4

4:                                                ; preds = %3
  %.not15 = icmp eq ptr %1, null
  br i1 %.not15, label %19, label %5

5:                                                ; preds = %4
  %6 = getelementptr inbounds i8, ptr %0, i64 8
  %7 = load i64, ptr %6, align 8, !tbaa !5
  %8 = add i64 %7, %2
  %9 = tail call i32 @vector_resize_buffer(ptr noundef nonnull %0, i64 noundef %8)
  %10 = load ptr, ptr %0, align 8, !tbaa !11
  %11 = load i64, ptr %6, align 8, !tbaa !5
  %12 = getelementptr inbounds i8, ptr %0, i64 24
  %13 = load i64, ptr %12, align 8, !tbaa !12
  %14 = mul i64 %13, %11
  %15 = getelementptr inbounds i8, ptr %10, i64 %14
  %16 = mul i64 %13, %2
  tail call void @llvm.memcpy.p0.p0.i64(ptr align 1 %15, ptr nonnull align 1 %1, i64 %16, i1 false)
  %17 = load i64, ptr %6, align 8, !tbaa !5
  %18 = add i64 %17, %2
  store i64 %18, ptr %6, align 8, !tbaa !5
  br label %19

19:                                               ; preds = %4, %3, %5
  %.0 = phi i32 [ 0, %5 ], [ 1, %3 ], [ 4, %4 ]
  ret i32 %.0
}

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 nocallback nofree nounwind willreturn memory(argmem: readwrite) }

!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 8}
!6 = !{!"vector_t", !7, i64 0, !10, i64 8, !10, i64 16, !10, 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 = !{!6, !7, i64 0}
!12 = !{!6, !10, i64 24}


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