; LLVM IR from ryansturmer/thinfat32 :: src (thinfat32)

; 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.struct_TFFILE = type { i32, i32, i32, i32, i16, i16, i32, i8, i8, i8, i32, [256 x i8] }

@temp = external dso_local global [13 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 uwtable
declare dso_local i32 @tf_find_file(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @tf_choose_sfn(ptr noundef %0, ptr noundef %1, ptr noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca %struct.struct_TFFILE, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  store i32 1, ptr %8, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 288, ptr %9) #3
  %11 = load ptr, ptr %6, align 8, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %9, ptr align 4 %11, i64 288, i1 false)
  br label %12

12:                                               ; preds = %31, %3
  br label %13

13:                                               ; preds = %12
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = load i32, ptr %8, align 4, !tbaa !9
  %17 = trunc i32 %16 to i8
  %18 = call i32 @tf_shorten_filename(ptr noundef %14, ptr noundef %15, i8 noundef zeroext %17)
  store i32 %18, ptr %7, align 4, !tbaa !9
  %19 = load i32, ptr %7, align 4, !tbaa !9
  switch i32 %19, label %31 [
    i32 0, label %20
    i32 -1, label %30
  ]

20:                                               ; preds = %13
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 @temp, ptr align 1 %21, i64 8, i1 false)
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = getelementptr inbounds i8, ptr %22, i64 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 getelementptr inbounds (i8, ptr @temp, i64 9), ptr align 1 %23, i64 3, i1 false)
  store i8 46, ptr getelementptr inbounds ([13 x i8], ptr @temp, i64 0, i64 8), align 1, !tbaa !11
  store i8 0, ptr getelementptr inbounds ([13 x i8], ptr @temp, i64 0, i64 12), align 1, !tbaa !11
  %24 = call i32 @tf_find_file(ptr noundef %9, ptr noundef @temp)
  %25 = icmp sgt i32 0, %24
  br i1 %25, label %26, label %27

26:                                               ; preds = %20
  store i32 1, ptr %10, align 4
  br label %32

27:                                               ; preds = %20
  %28 = load i32, ptr %8, align 4, !tbaa !9
  %29 = add nsw i32 %28, 1
  store i32 %29, ptr %8, align 4, !tbaa !9
  br label %31

30:                                               ; preds = %13
  store i32 1, ptr %10, align 4
  br label %32

31:                                               ; preds = %27, %13
  br label %12

32:                                               ; preds = %30, %26
  call void @llvm.lifetime.end.p0(i64 288, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  ret void
}

; 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) #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @tf_shorten_filename(ptr noundef, ptr noundef, i8 noundef zeroext) #1

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 nounwind willreturn memory(argmem: readwrite) }
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 = !{!"int", !7, i64 0}
!11 = !{!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"

%struct.struct_TFFILE = type { i32, i32, i32, i32, i16, i16, i32, i8, i8, i8, i32, [256 x i8] }

@temp = external dso_local global [13 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: nounwind uwtable
declare dso_local i32 @tf_find_file(ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @tf_choose_sfn(ptr noundef %0, ptr noundef %1, ptr nocapture noundef readonly %2) local_unnamed_addr #1 {
  %4 = alloca %struct.struct_TFFILE, align 4
  call void @llvm.lifetime.start.p0(i64 288, ptr nonnull %4) #3
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(288) %4, ptr noundef nonnull align 4 dereferenceable(288) %2, i64 288, i1 false)
  %5 = getelementptr inbounds i8, ptr %0, i64 8
  br label %.outer

.outer:                                           ; preds = %12, %3
  %.0.ph = phi i8 [ %13, %12 ], [ 1, %3 ]
  br label %6

6:                                                ; preds = %.outer, %6
  %7 = call i32 @tf_shorten_filename(ptr noundef %0, ptr noundef %1, i8 noundef zeroext %.0.ph)
  switch i32 %7, label %6 [
    i32 0, label %8
    i32 -1, label %.loopexit
  ]

8:                                                ; preds = %6
  %9 = load i64, ptr %0, align 1
  store i64 %9, ptr @temp, align 1
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 1 dereferenceable(3) getelementptr inbounds (i8, ptr @temp, i64 9), ptr noundef nonnull align 1 dereferenceable(3) %5, i64 3, i1 false)
  store i8 46, ptr getelementptr inbounds (i8, ptr @temp, i64 8), align 1, !tbaa !5
  store i8 0, ptr getelementptr inbounds (i8, ptr @temp, i64 12), align 1, !tbaa !5
  %10 = call i32 @tf_find_file(ptr noundef nonnull %4, ptr noundef nonnull @temp)
  %11 = icmp slt i32 %10, 0
  br i1 %11, label %.loopexit, label %12

12:                                               ; preds = %8
  %13 = add i8 %.0.ph, 1
  br label %.outer

.loopexit:                                        ; preds = %8, %6
  call void @llvm.lifetime.end.p0(i64 288, ptr nonnull %4) #3
  ret void
}

; 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) #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @tf_shorten_filename(ptr noundef, ptr noundef, i8 noundef zeroext) local_unnamed_addr #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 nounwind willreturn memory(argmem: readwrite) }
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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: AggressiveInstCombinePass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,LICMPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass