; LLVM IR from Water-Melon/Melon :: src (mln_alloc)

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

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

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

; Function Attrs: nounwind uwtable
declare dso_local void @mln_alloc_free(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local ptr @mln_alloc_re(ptr noundef %0, ptr noundef %1, i64 noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca ptr, 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
  %11 = load i64, ptr %7, align 8, !tbaa !9
  %12 = icmp eq i64 %11, 0
  br i1 %12, label %13, label %15

13:                                               ; preds = %3
  %14 = load ptr, ptr %6, align 8, !tbaa !5
  call void @mln_alloc_free(ptr noundef %14)
  store ptr null, ptr %4, align 8
  br label %48

15:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = getelementptr inbounds i8, ptr %16, i64 -56
  store ptr %17, ptr %8, align 8, !tbaa !5
  %18 = load ptr, ptr %8, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.mln_alloc_blk_s, ptr %18, i32 0, i32 2
  %20 = load ptr, ptr %19, align 8, !tbaa !11
  %21 = load ptr, ptr %5, align 8, !tbaa !5
  %22 = icmp eq ptr %20, %21
  br i1 %22, label %23, label %31

23:                                               ; preds = %15
  %24 = load ptr, ptr %8, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.mln_alloc_blk_s, ptr %24, i32 0, i32 5
  %26 = load i64, ptr %25, align 8, !tbaa !13
  %27 = load i64, ptr %7, align 8, !tbaa !9
  %28 = icmp uge i64 %26, %27
  br i1 %28, label %29, label %31

29:                                               ; preds = %23
  %30 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %30, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %47

31:                                               ; preds = %23, %15
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %32 = load ptr, ptr %5, align 8, !tbaa !5
  %33 = load i64, ptr %7, align 8, !tbaa !9
  %34 = call ptr @mln_alloc_m(ptr noundef %32, i64 noundef %33)
  store ptr %34, ptr %10, align 8, !tbaa !5
  %35 = load ptr, ptr %10, align 8, !tbaa !5
  %36 = icmp eq ptr %35, null
  br i1 %36, label %37, label %38

37:                                               ; preds = %31
  store ptr null, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %46

38:                                               ; preds = %31
  %39 = load ptr, ptr %10, align 8, !tbaa !5
  %40 = load ptr, ptr %6, align 8, !tbaa !5
  %41 = load ptr, ptr %8, align 8, !tbaa !5
  %42 = getelementptr inbounds %struct.mln_alloc_blk_s, ptr %41, i32 0, i32 5
  %43 = load i64, ptr %42, align 8, !tbaa !13
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %39, ptr align 1 %40, i64 %43, i1 false)
  %44 = load ptr, ptr %6, align 8, !tbaa !5
  call void @mln_alloc_free(ptr noundef %44)
  %45 = load ptr, ptr %10, align 8, !tbaa !5
  store ptr %45, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %46

46:                                               ; preds = %38, %37
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  br label %47

47:                                               ; preds = %46, %29
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %48

48:                                               ; preds = %47, %13
  %49 = load ptr, ptr %4, align 8
  ret ptr %49
}

; 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) #2

attributes #0 = { nocallback nofree nosync 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" }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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, !6, i64 16}
!12 = !{!"mln_alloc_blk_s", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !10, i64 40, !10, i64 48, !10, i64 48, !10, i64 48}
!13 = !{!12, !10, i64 40}


; 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 ptr @mln_alloc_m(ptr noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @mln_alloc_free(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local ptr @mln_alloc_re(ptr noundef %0, ptr noundef %1, i64 noundef %2) local_unnamed_addr #0 {
  %4 = icmp eq i64 %2, 0
  br i1 %4, label %5, label %6

5:                                                ; preds = %3
  tail call void @mln_alloc_free(ptr noundef %1)
  br label %19

6:                                                ; preds = %3
  %7 = getelementptr inbounds i8, ptr %1, i64 -40
  %8 = load ptr, ptr %7, align 8, !tbaa !5
  %9 = icmp eq ptr %8, %0
  br i1 %9, label %10, label %13

10:                                               ; preds = %6
  %11 = getelementptr inbounds i8, ptr %1, i64 -16
  %12 = load i64, ptr %11, align 8, !tbaa !11
  %.not = icmp ult i64 %12, %2
  br i1 %.not, label %13, label %19

13:                                               ; preds = %10, %6
  %14 = tail call ptr @mln_alloc_m(ptr noundef %0, i64 noundef %2)
  %15 = icmp eq ptr %14, null
  br i1 %15, label %19, label %16

16:                                               ; preds = %13
  %17 = getelementptr inbounds i8, ptr %1, i64 -16
  %18 = load i64, ptr %17, align 8, !tbaa !11
  tail call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %14, ptr nonnull align 1 %1, i64 %18, i1 false)
  tail call void @mln_alloc_free(ptr noundef nonnull %1)
  br label %19

19:                                               ; preds = %10, %13, %16, %5
  %.2 = phi ptr [ null, %5 ], [ %1, %10 ], [ %14, %16 ], [ null, %13 ]
  ret ptr %.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) #1

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, !7, i64 16}
!6 = !{!"mln_alloc_blk_s", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !10, i64 40, !10, i64 48, !10, i64 48, !10, i64 48}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!6, !10, i64 40}


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