; LLVM IR from yellow-footed-honeyguide/facad :: src (dir_config)

; 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.DirectoryConfig = type { ptr, i32 }

@directory_configs = external dso_local constant [2 x %struct.DirectoryConfig], align 16

; Function Attrs: nounwind uwtable
define dso_local i32 @get_max_columns(ptr noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %6

6:                                                ; preds = %26, %1
  %7 = load i32, ptr %4, align 4, !tbaa !9
  %8 = icmp slt i32 %7, 2
  br i1 %8, label %10, label %9

9:                                                ; preds = %6
  store i32 2, ptr %5, align 4
  br label %29

10:                                               ; preds = %6
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = load i32, ptr %4, align 4, !tbaa !9
  %13 = sext i32 %12 to i64
  %14 = getelementptr inbounds [2 x %struct.DirectoryConfig], ptr @directory_configs, i64 0, i64 %13
  %15 = getelementptr inbounds %struct.DirectoryConfig, ptr %14, i32 0, i32 0
  %16 = load ptr, ptr %15, align 16, !tbaa !11
  %17 = call i32 @strcmp(ptr noundef %11, ptr noundef %16) #4
  %18 = icmp eq i32 %17, 0
  br i1 %18, label %19, label %25

19:                                               ; preds = %10
  %20 = load i32, ptr %4, align 4, !tbaa !9
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds [2 x %struct.DirectoryConfig], ptr @directory_configs, i64 0, i64 %21
  %23 = getelementptr inbounds %struct.DirectoryConfig, ptr %22, i32 0, i32 1
  %24 = load i32, ptr %23, align 8, !tbaa !13
  store i32 %24, ptr %2, align 4
  store i32 1, ptr %5, align 4
  br label %29

25:                                               ; preds = %10
  br label %26

26:                                               ; preds = %25
  %27 = load i32, ptr %4, align 4, !tbaa !9
  %28 = add nsw i32 %27, 1
  store i32 %28, ptr %4, align 4, !tbaa !9
  br label %6, !llvm.loop !14

29:                                               ; preds = %19, %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  %30 = load i32, ptr %5, align 4
  switch i32 %30, label %34 [
    i32 2, label %31
    i32 1, label %32
  ]

31:                                               ; preds = %29
  store i32 4, ptr %2, align 4
  br label %32

32:                                               ; preds = %31, %29
  %33 = load i32, ptr %2, align 4
  ret i32 %33

34:                                               ; preds = %29
  unreachable
}

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

; Function Attrs: nounwind willreturn memory(read)
declare i32 @strcmp(ptr noundef, ptr noundef) #2

; 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 = { 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 #3 = { nounwind }
attributes #4 = { 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 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"", !6, i64 0, !10, i64 8}
!13 = !{!12, !10, i64 8}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; 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.DirectoryConfig = type { ptr, i32 }

@directory_configs = external dso_local local_unnamed_addr constant [2 x %struct.DirectoryConfig], align 16

; Function Attrs: mustprogress nofree nounwind willreturn memory(read, inaccessiblemem: none) uwtable
define dso_local i32 @get_max_columns(ptr nocapture noundef readonly %0) local_unnamed_addr #0 {
  %2 = load ptr, ptr @directory_configs, align 16, !tbaa !5
  %3 = tail call i32 @strcmp(ptr noundef nonnull dereferenceable(1) %0, ptr noundef nonnull dereferenceable(1) %2) #2
  %4 = icmp eq i32 %3, 0
  br i1 %4, label %9, label %5

5:                                                ; preds = %1
  %6 = load ptr, ptr getelementptr inbounds (i8, ptr @directory_configs, i64 16), align 16, !tbaa !5
  %7 = tail call i32 @strcmp(ptr noundef nonnull dereferenceable(1) %0, ptr noundef nonnull dereferenceable(1) %6) #2
  %8 = icmp eq i32 %7, 0
  br i1 %8, label %9, label %.loopexit

9:                                                ; preds = %5, %1
  %.lcssa = phi ptr [ @directory_configs, %1 ], [ getelementptr inbounds (i8, ptr @directory_configs, i64 16), %5 ]
  %10 = getelementptr inbounds i8, ptr %.lcssa, i64 8
  %11 = load i32, ptr %10, align 8, !tbaa !11
  br label %.loopexit

.loopexit:                                        ; preds = %5, %9
  %spec.select = phi i32 [ %11, %9 ], [ 4, %5 ]
  ret i32 %spec.select
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i32 @strcmp(ptr nocapture noundef, ptr nocapture noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nofree nounwind willreturn memory(read, inaccessiblemem: none) 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 nofree nounwind willreturn memory(argmem: 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 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, !7, i64 0}
!6 = !{!"", !7, i64 0, !10, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !10, i64 8}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass