; LLVM IR from Softmotions/iowow :: src/utils (iwxstr)

; 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: 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 noalias ptr @iwxstr_create_empty() #1

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

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

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

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

; Function Attrs: nounwind uwtable
define dso_local ptr @iwxstr_new_printf(ptr noundef %0, ...) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca [1 x %struct.__va_list_tag], align 16
  %7 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %8 = call noalias ptr @iwxstr_create_empty()
  store ptr %8, ptr %4, align 8, !tbaa !5
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = icmp ne ptr %9, null
  br i1 %10, label %12, label %11

11:                                               ; preds = %1
  store ptr null, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %26

12:                                               ; preds = %1
  call void @llvm.lifetime.start.p0(i64 24, ptr %6) #3
  %13 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %6, i64 0, i64 0
  call void @llvm.va_start.p0(ptr %13)
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %6, i64 0, i64 0
  %17 = call i64 @iwxstr_printf_va(ptr noundef %14, ptr noundef %15, ptr noundef %16)
  store i64 %17, ptr %7, align 8, !tbaa !9
  %18 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %6, i64 0, i64 0
  call void @llvm.va_end.p0(ptr %18)
  %19 = load i64, ptr %7, align 8, !tbaa !9
  %20 = icmp ne i64 %19, 0
  br i1 %20, label %21, label %23

21:                                               ; preds = %12
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  call void @iwxstr_destroy(ptr noundef %22)
  store ptr null, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %25

23:                                               ; preds = %12
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %24, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %25

25:                                               ; preds = %23, %21
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #3
  br label %26

26:                                               ; preds = %25, %11
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  %27 = load ptr, ptr %2, align 8
  ret ptr %27
}

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 nosync nounwind willreturn }
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}


; 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: 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 noalias ptr @iwxstr_create_empty() local_unnamed_addr #1

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

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

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

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

; Function Attrs: nounwind uwtable
define dso_local ptr @iwxstr_new_printf(ptr noundef %0, ...) local_unnamed_addr #1 {
  %2 = alloca [1 x %struct.__va_list_tag], align 16
  %3 = tail call noalias ptr @iwxstr_create_empty()
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %8, label %4

4:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #3
  call void @llvm.va_start.p0(ptr nonnull %2)
  %5 = call i64 @iwxstr_printf_va(ptr noundef nonnull %3, ptr noundef %0, ptr noundef nonnull %2)
  call void @llvm.va_end.p0(ptr nonnull %2)
  %.not7 = icmp eq i64 %5, 0
  br i1 %.not7, label %7, label %6

6:                                                ; preds = %4
  call void @iwxstr_destroy(ptr noundef nonnull %3)
  br label %7

7:                                                ; preds = %4, %6
  %.0 = phi ptr [ null, %6 ], [ %3, %4 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #3
  br label %8

8:                                                ; preds = %1, %7
  %.1 = phi ptr [ %.0, %7 ], [ null, %1 ]
  ret ptr %.1
}

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 = { mustprogress nocallback nofree nosync nounwind willreturn }
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)"}


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