; LLVM IR from ryanlayer/giggle :: src (util)

; 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"

@.str.3 = external hidden unnamed_addr constant [2 x i8], align 1

; 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 willreturn memory(read)
declare i64 @strlen(ptr noundef) #1

; Function Attrs: nounwind
declare ptr @strcpy(ptr noundef, ptr noundef) #2

; Function Attrs: nounwind
declare ptr @strncpy(ptr noundef, ptr noundef, i64 noundef) #2

; Function Attrs: nounwind uwtable
define dso_local void @safe_basename(ptr noundef %0, ptr noundef %1) #3 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca i32, align 4
  %7 = alloca [4096 x i8], align 16
  %8 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = icmp eq ptr %9, null
  br i1 %10, label %14, label %11

11:                                               ; preds = %2
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = icmp eq ptr %12, null
  br i1 %13, label %14, label %15

14:                                               ; preds = %11, %2
  br label %34

15:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  %16 = load ptr, ptr %3, align 8, !tbaa !5
  %17 = call i64 @strlen(ptr noundef %16) #5
  store i64 %17, ptr %5, align 8, !tbaa !9
  %18 = load i64, ptr %5, align 8, !tbaa !9
  %19 = icmp eq i64 %18, 0
  br i1 %19, label %20, label %23

20:                                               ; preds = %15
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = call ptr @strcpy(ptr noundef %21, ptr noundef @.str.3) #4
  store i32 1, ptr %6, align 4
  br label %32

23:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 4096, ptr %7) #4
  %24 = getelementptr inbounds [4096 x i8], ptr %7, i64 0, i64 0
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  %26 = call ptr @strncpy(ptr noundef %24, ptr noundef %25, i64 noundef 4096) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %27 = getelementptr inbounds [4096 x i8], ptr %7, i64 0, i64 0
  %28 = call ptr @__xpg_basename(ptr noundef %27) #4
  store ptr %28, ptr %8, align 8, !tbaa !5
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = load ptr, ptr %8, align 8, !tbaa !5
  %31 = call ptr @strncpy(ptr noundef %29, ptr noundef %30, i64 noundef 4096) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 4096, ptr %7) #4
  store i32 0, ptr %6, align 4
  br label %32

32:                                               ; preds = %23, %20
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  %33 = load i32, ptr %6, align 4
  switch i32 %33, label %35 [
    i32 0, label %34
    i32 1, label %34
  ]

34:                                               ; preds = %32, %32, %14
  ret void

35:                                               ; preds = %32
  unreachable
}

; Function Attrs: nounwind
declare ptr @__xpg_basename(ptr noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nounwind willreturn memory(read) "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 "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 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 #4 = { nounwind }
attributes #5 = { nounwind willreturn memory(read) }

!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"

@.str.3 = external hidden unnamed_addr constant [2 x i8], align 1

; 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: mustprogress nofree nounwind willreturn memory(argmem: readwrite)
declare ptr @strcpy(ptr noalias noundef returned writeonly, ptr noalias nocapture noundef readonly) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: readwrite)
declare ptr @strncpy(ptr noalias noundef returned writeonly, ptr noalias nocapture noundef readonly, i64 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @safe_basename(ptr noundef readonly %0, ptr noundef %1) local_unnamed_addr #2 {
  %3 = alloca [4096 x i8], align 16
  %4 = icmp eq ptr %0, null
  %5 = icmp eq ptr %1, null
  %or.cond = or i1 %4, %5
  br i1 %or.cond, label %14, label %6

6:                                                ; preds = %2
  %char0 = load i8, ptr %0, align 1
  %7 = icmp eq i8 %char0, 0
  br i1 %7, label %8, label %10

8:                                                ; preds = %6
  %9 = tail call ptr @strcpy(ptr noundef nonnull dereferenceable(1) %1, ptr noundef nonnull dereferenceable(1) @.str.3) #4
  br label %14

10:                                               ; preds = %6
  call void @llvm.lifetime.start.p0(i64 4096, ptr nonnull %3) #4
  %11 = call ptr @strncpy(ptr noundef nonnull dereferenceable(1) %3, ptr noundef nonnull dereferenceable(1) %0, i64 noundef 4096) #4
  %12 = call ptr @__xpg_basename(ptr noundef nonnull %3) #4
  %13 = call ptr @strncpy(ptr noundef nonnull dereferenceable(1) %1, ptr noundef nonnull dereferenceable(1) %12, i64 noundef 4096) #4
  call void @llvm.lifetime.end.p0(i64 4096, ptr nonnull %3) #4
  br label %14

14:                                               ; preds = %8, %10, %2
  ret void
}

; Function Attrs: nounwind
declare ptr @__xpg_basename(ptr noundef) local_unnamed_addr #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nofree nounwind willreturn memory(argmem: readwrite) "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 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 #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 }

!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: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass