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

; 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 @iwpool_alloc(i64 noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local ptr @iwpool_strndup(ptr noundef %0, ptr noundef %1, i64 noundef %2, ptr noundef %3) #1 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store i64 %2, ptr %8, align 8, !tbaa !9
  store ptr %3, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  %12 = load i64, ptr %8, align 8, !tbaa !9
  %13 = add i64 %12, 1
  %14 = load ptr, ptr %6, align 8, !tbaa !5
  %15 = call ptr @iwpool_alloc(i64 noundef %13, ptr noundef %14)
  store ptr %15, ptr %10, align 8, !tbaa !5
  %16 = load ptr, ptr %10, align 8, !tbaa !5
  %17 = icmp ne ptr %16, null
  br i1 %17, label %23, label %18

18:                                               ; preds = %4
  %19 = call ptr @__errno_location() #6
  %20 = load i32, ptr %19, align 4, !tbaa !11
  %21 = call i64 @iwrc_set_errno(i64 noundef 70013, i32 noundef %20)
  %22 = load ptr, ptr %9, align 8, !tbaa !5
  store i64 %21, ptr %22, align 8, !tbaa !9
  store ptr null, ptr %5, align 8
  store i32 1, ptr %11, align 4
  br label %33

23:                                               ; preds = %4
  %24 = load ptr, ptr %9, align 8, !tbaa !5
  store i64 0, ptr %24, align 8, !tbaa !9
  br label %25

25:                                               ; preds = %23
  %26 = load ptr, ptr %10, align 8, !tbaa !5
  %27 = load ptr, ptr %7, align 8, !tbaa !5
  %28 = load i64, ptr %8, align 8, !tbaa !9
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %26, ptr align 1 %27, i64 %28, i1 false)
  %29 = load ptr, ptr %10, align 8, !tbaa !5
  %30 = load i64, ptr %8, align 8, !tbaa !9
  %31 = getelementptr inbounds i8, ptr %29, i64 %30
  store i8 0, ptr %31, align 1, !tbaa !13
  %32 = load ptr, ptr %10, align 8, !tbaa !5
  store ptr %32, ptr %5, align 8
  store i32 1, ptr %11, align 4
  br label %33

33:                                               ; preds = %25, %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  %34 = load ptr, ptr %5, align 8
  ret ptr %34
}

declare i64 @iwrc_set_errno(i64 noundef, i32 noundef) #2

; Function Attrs: nounwind willreturn memory(none)
declare ptr @__errno_location() #3

; 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) #4

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 willreturn memory(none) "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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { nounwind }
attributes #6 = { nounwind willreturn memory(none) }

!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, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!7, !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: nounwind uwtable
declare dso_local ptr @iwpool_alloc(i64 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local ptr @iwpool_strndup(ptr noundef %0, ptr nocapture noundef readonly %1, i64 noundef %2, ptr nocapture noundef writeonly %3) local_unnamed_addr #0 {
  %5 = add i64 %2, 1
  %6 = tail call ptr @iwpool_alloc(i64 noundef %5, ptr noundef %0)
  %.not = icmp eq ptr %6, null
  br i1 %.not, label %7, label %11

7:                                                ; preds = %4
  %8 = tail call ptr @__errno_location() #4
  %9 = load i32, ptr %8, align 4, !tbaa !5
  %10 = tail call i64 @iwrc_set_errno(i64 noundef 70013, i32 noundef %9) #5
  store i64 %10, ptr %3, align 8, !tbaa !9
  br label %13

11:                                               ; preds = %4
  store i64 0, ptr %3, align 8, !tbaa !9
  tail call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %6, ptr align 1 %1, i64 %2, i1 false)
  %12 = getelementptr inbounds i8, ptr %6, i64 %2
  store i8 0, ptr %12, align 1, !tbaa !11
  br label %13

13:                                               ; preds = %11, %7
  ret ptr %6
}

declare i64 @iwrc_set_errno(i64 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nosync nounwind willreturn memory(none)
declare ptr @__errno_location() local_unnamed_addr #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) #3

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 = { mustprogress nofree nosync nounwind willreturn memory(none) "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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nounwind willreturn memory(none) }
attributes #5 = { 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 = !{!"int", !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 = !{!7, !7, i64 0}


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