; LLVM IR from PaulBatchelor/sndkit :: graforge (graforge)

; 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"

; 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 @gf_patch_stack(ptr noundef) #1

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

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

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

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

; Function Attrs: nounwind uwtable
define dso_local i32 @gf_patch_bhold(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #2
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = call ptr @gf_patch_stack(ptr noundef %11)
  store ptr %12, ptr %7, align 8, !tbaa !5
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = call ptr @gf_patch_pool(ptr noundef %13)
  store ptr %14, ptr %9, align 8, !tbaa !5
  %15 = load ptr, ptr %7, align 8, !tbaa !5
  %16 = call i32 @gf_stack_pop(ptr noundef %15, ptr noundef %8)
  store i32 %16, ptr %6, align 4, !tbaa !9
  %17 = load i32, ptr %6, align 4, !tbaa !9
  %18 = icmp ne i32 %17, 0
  br i1 %18, label %19, label %21

19:                                               ; preds = %2
  %20 = load i32, ptr %6, align 4, !tbaa !9
  store i32 %20, ptr %3, align 4
  store i32 1, ptr %10, align 4
  br label %32

21:                                               ; preds = %2
  %22 = load ptr, ptr %9, align 8, !tbaa !5
  call void @gf_bufferpool_clear_last_free(ptr noundef %22)
  %23 = load ptr, ptr %9, align 8, !tbaa !5
  %24 = load ptr, ptr %8, align 8, !tbaa !5
  %25 = call i32 @gf_bufferpool_holdu(ptr noundef %23, ptr noundef %24)
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = icmp ne ptr %26, null
  br i1 %27, label %28, label %31

28:                                               ; preds = %21
  %29 = load ptr, ptr %8, align 8, !tbaa !5
  %30 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %29, ptr %30, align 8, !tbaa !5
  br label %31

31:                                               ; preds = %28, %21
  store i32 0, ptr %3, align 4
  store i32 1, ptr %10, align 4
  br label %32

32:                                               ; preds = %31, %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  %33 = load i32, ptr %3, align 4
  ret i32 %33
}

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 = { 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 = !{!"int", !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 nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress 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 @gf_patch_stack(ptr noundef) local_unnamed_addr #1

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

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

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

; Function Attrs: nounwind uwtable
declare dso_local ptr @gf_patch_pool(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local i32 @gf_patch_bhold(ptr noundef %0, ptr noundef writeonly %1) local_unnamed_addr #1 {
  %3 = alloca ptr, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #2
  %4 = tail call ptr @gf_patch_stack(ptr noundef %0)
  %5 = tail call ptr @gf_patch_pool(ptr noundef %0)
  %6 = call i32 @gf_stack_pop(ptr noundef %4, ptr noundef nonnull %3)
  %.not = icmp eq i32 %6, 0
  br i1 %.not, label %7, label %12

7:                                                ; preds = %2
  call void @gf_bufferpool_clear_last_free(ptr noundef %5)
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = call i32 @gf_bufferpool_holdu(ptr noundef %5, ptr noundef %8)
  %.not11 = icmp eq ptr %1, null
  br i1 %.not11, label %12, label %10

10:                                               ; preds = %7
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  store ptr %11, ptr %1, align 8, !tbaa !5
  br label %12

12:                                               ; preds = %7, %10, %2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #2
  ret i32 %6
}

attributes #0 = { mustprogress 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 = { 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"}


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