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

; 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_string_t = type { 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
define dso_local ptr @mln_string_buf_pool_new(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
  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
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = call ptr @mln_alloc_m(ptr noundef %10, i64 noundef 24)
  store ptr %11, ptr %8, align 8, !tbaa !5
  %12 = load ptr, ptr %8, align 8, !tbaa !5
  %13 = icmp eq ptr %12, null
  br i1 %13, label %14, label %15

14:                                               ; preds = %3
  store ptr null, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %38

15:                                               ; preds = %3
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = load ptr, ptr %8, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.mln_string_t, ptr %17, i32 0, i32 0
  store ptr %16, ptr %18, align 8, !tbaa !11
  %19 = load i64, ptr %7, align 8, !tbaa !9
  %20 = load ptr, ptr %8, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.mln_string_t, ptr %20, i32 0, i32 1
  store i64 %19, ptr %21, align 8, !tbaa !13
  %22 = load ptr, ptr %8, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.mln_string_t, ptr %22, i32 0, i32 2
  %24 = load i32, ptr %23, align 8
  %25 = and i32 %24, -2
  %26 = or i32 %25, 0
  store i32 %26, ptr %23, align 8
  %27 = load ptr, ptr %8, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.mln_string_t, ptr %27, i32 0, i32 2
  %29 = load i32, ptr %28, align 8
  %30 = and i32 %29, -3
  %31 = or i32 %30, 2
  store i32 %31, ptr %28, align 8
  %32 = load ptr, ptr %8, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.mln_string_t, ptr %32, i32 0, i32 2
  %34 = load i32, ptr %33, align 8
  %35 = and i32 %34, 3
  %36 = or i32 %35, 4
  store i32 %36, ptr %33, align 8
  %37 = load ptr, ptr %8, align 8, !tbaa !5
  store ptr %37, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %38

38:                                               ; preds = %15, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  %39 = load ptr, ptr %4, align 8
  ret ptr %39
}

declare ptr @mln_alloc_m(ptr noundef, i64 noundef) #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 = { "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 }

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


; 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
define dso_local ptr @mln_string_buf_pool_new(ptr noundef %0, ptr noundef %1, i64 noundef %2) local_unnamed_addr #0 {
  %4 = tail call ptr @mln_alloc_m(ptr noundef %0, i64 noundef 24) #2
  %5 = icmp eq ptr %4, null
  br i1 %5, label %9, label %6

6:                                                ; preds = %3
  store ptr %1, ptr %4, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %4, i64 8
  store i64 %2, ptr %7, align 8, !tbaa !11
  %8 = getelementptr inbounds i8, ptr %4, i64 16
  store i32 6, ptr %8, align 8
  br label %9

9:                                                ; preds = %3, %6
  ret ptr %4
}

declare ptr @mln_alloc_m(ptr noundef, i64 noundef) local_unnamed_addr #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 = { "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 = { 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 = !{!"", !7, i64 0, !10, i64 8, !10, i64 16, !10, i64 16, !10, i64 16}
!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 8}


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