; LLVM IR from chdb-io/chdb :: base/glibc-compatibility/musl (vasprintf)

; 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.__va_list_tag = type { i32, i32, ptr, ptr }

; Function Attrs: nounwind uwtable
define dso_local i32 @vasprintf(ptr noundef %0, ptr noundef %1, ptr noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca [1 x %struct.__va_list_tag], align 16
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 24, ptr %8) #5
  %11 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %8, i64 0, i64 0
  %12 = load ptr, ptr %7, align 8, !tbaa !5
  call void @llvm.va_copy.p0(ptr %11, ptr %12)
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #5
  %13 = load ptr, ptr %6, align 8, !tbaa !5
  %14 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %8, i64 0, i64 0
  %15 = call i32 @vsnprintf(ptr noundef null, i64 noundef 0, ptr noundef %13, ptr noundef %14) #5
  store i32 %15, ptr %9, align 4, !tbaa !9
  %16 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %8, i64 0, i64 0
  call void @llvm.va_end.p0(ptr %16)
  %17 = load i32, ptr %9, align 4, !tbaa !9
  %18 = icmp slt i32 %17, 0
  br i1 %18, label %26, label %19

19:                                               ; preds = %3
  %20 = load i32, ptr %9, align 4, !tbaa !9
  %21 = add i32 %20, 1
  %22 = zext i32 %21 to i64
  %23 = call noalias ptr @malloc(i64 noundef %22) #6
  %24 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %23, ptr %24, align 8, !tbaa !5
  %25 = icmp ne ptr %23, null
  br i1 %25, label %27, label %26

26:                                               ; preds = %19, %3
  store i32 -1, ptr %4, align 4
  store i32 1, ptr %10, align 4
  br label %36

27:                                               ; preds = %19
  %28 = load ptr, ptr %5, align 8, !tbaa !5
  %29 = load ptr, ptr %28, align 8, !tbaa !5
  %30 = load i32, ptr %9, align 4, !tbaa !9
  %31 = add i32 %30, 1
  %32 = zext i32 %31 to i64
  %33 = load ptr, ptr %6, align 8, !tbaa !5
  %34 = load ptr, ptr %7, align 8, !tbaa !5
  %35 = call i32 @vsnprintf(ptr noundef %29, i64 noundef %32, ptr noundef %33, ptr noundef %34) #5
  store i32 %35, ptr %4, align 4
  store i32 1, ptr %10, align 4
  br label %36

36:                                               ; preds = %27, %26
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %8) #5
  %37 = load i32, ptr %4, align 4
  ret i32 %37
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.va_copy.p0(ptr, ptr) #2

; Function Attrs: nounwind
declare i32 @vsnprintf(ptr noundef, i64 noundef, ptr noundef, ptr noundef) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.va_end.p0(ptr) #2

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nosync nounwind willreturn }
attributes #3 = { nounwind "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 #4 = { nounwind allocsize(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 #5 = { nounwind }
attributes #6 = { nounwind allocsize(0) }

!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"

%struct.__va_list_tag = type { i32, i32, ptr, ptr }

; Function Attrs: nofree nounwind uwtable
define dso_local noundef i32 @vasprintf(ptr nocapture noundef writeonly %0, ptr nocapture noundef readonly %1, ptr noundef %2) local_unnamed_addr #0 {
  %4 = alloca [1 x %struct.__va_list_tag], align 16
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #5
  call void @llvm.va_copy.p0(ptr nonnull %4, ptr %2)
  %5 = call i32 @vsnprintf(ptr noundef null, i64 noundef 0, ptr noundef %1, ptr noundef nonnull %4) #5
  call void @llvm.va_end.p0(ptr nonnull %4)
  %6 = icmp slt i32 %5, 0
  br i1 %6, label %13, label %7

7:                                                ; preds = %3
  %8 = add nuw i32 %5, 1
  %9 = zext i32 %8 to i64
  %10 = call noalias ptr @malloc(i64 noundef %9) #6
  store ptr %10, ptr %0, align 8, !tbaa !5
  %.not = icmp eq ptr %10, null
  br i1 %.not, label %13, label %11

11:                                               ; preds = %7
  %12 = call i32 @vsnprintf(ptr noundef nonnull %10, i64 noundef %9, ptr noundef %1, ptr noundef %2) #5
  br label %13

13:                                               ; preds = %3, %7, %11
  %.0 = phi i32 [ %12, %11 ], [ -1, %7 ], [ -1, %3 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #5
  ret i32 %.0
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.va_copy.p0(ptr, ptr) #2

; Function Attrs: nofree nounwind
declare noundef i32 @vsnprintf(ptr nocapture noundef, i64 noundef, ptr nocapture noundef readonly, ptr noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.va_end.p0(ptr) #2

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { nofree 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 nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #3 = { nofree nounwind "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 #4 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 #5 = { nounwind }
attributes #6 = { nounwind allocsize(0) }

!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,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass