; LLVM IR from bjourne/fast_snn_fpga :: src (utils)

; 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 = external hidden unnamed_addr constant [3 x i8], align 1

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

15:                                               ; preds = %3
  store i1 false, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %56

16:                                               ; preds = %3
  %17 = load ptr, ptr %8, align 8, !tbaa !5
  %18 = call i32 @fseek(ptr noundef %17, i64 noundef 0, i32 noundef 2)
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  %19 = load ptr, ptr %8, align 8, !tbaa !5
  %20 = call i64 @ftell(ptr noundef %19)
  store i64 %20, ptr %10, align 8, !tbaa !9
  %21 = load ptr, ptr %8, align 8, !tbaa !5
  call void @rewind(ptr noundef %21)
  %22 = load ptr, ptr %7, align 8, !tbaa !5
  %23 = icmp ne ptr %22, null
  br i1 %23, label %24, label %27

24:                                               ; preds = %16
  %25 = load i64, ptr %10, align 8, !tbaa !9
  %26 = load ptr, ptr %7, align 8, !tbaa !5
  store i64 %25, ptr %26, align 8, !tbaa !9
  br label %27

27:                                               ; preds = %24, %16
  %28 = load ptr, ptr %6, align 8, !tbaa !5
  %29 = icmp ne ptr %28, null
  br i1 %29, label %31, label %30

30:                                               ; preds = %27
  br label %52

31:                                               ; preds = %27
  %32 = load i64, ptr %10, align 8, !tbaa !9
  %33 = add i64 %32, 1
  %34 = mul i64 1, %33
  %35 = call noalias ptr @malloc(i64 noundef %34) #6
  %36 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %35, ptr %36, align 8, !tbaa !5
  %37 = load ptr, ptr %6, align 8, !tbaa !5
  %38 = load ptr, ptr %37, align 8, !tbaa !5
  %39 = load i64, ptr %10, align 8, !tbaa !9
  %40 = load ptr, ptr %8, align 8, !tbaa !5
  %41 = call i64 @fread(ptr noundef %38, i64 noundef 1, i64 noundef %39, ptr noundef %40)
  %42 = load i64, ptr %10, align 8, !tbaa !9
  %43 = icmp ne i64 %41, %42
  br i1 %43, label %44, label %47

44:                                               ; preds = %31
  %45 = load ptr, ptr %6, align 8, !tbaa !5
  %46 = load ptr, ptr %45, align 8, !tbaa !5
  call void @free(ptr noundef %46) #5
  store i1 false, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %55

47:                                               ; preds = %31
  %48 = load ptr, ptr %6, align 8, !tbaa !5
  %49 = load ptr, ptr %48, align 8, !tbaa !5
  %50 = load i64, ptr %10, align 8, !tbaa !9
  %51 = getelementptr inbounds i8, ptr %49, i64 %50
  store i8 0, ptr %51, align 1, !tbaa !11
  br label %52

52:                                               ; preds = %47, %30
  %53 = load ptr, ptr %8, align 8, !tbaa !5
  %54 = call i32 @fclose(ptr noundef %53)
  store i1 true, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %55

55:                                               ; preds = %52, %44
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  br label %56

56:                                               ; preds = %55, %15
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  %57 = load i1, ptr %4, align 1
  ret i1 %57
}

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

declare noalias ptr @fopen(ptr noundef, ptr noundef) #2

declare i32 @fseek(ptr noundef, i64 noundef, i32 noundef) #2

declare i64 @ftell(ptr noundef) #2

declare void @rewind(ptr noundef) #2

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #3

declare i64 @fread(ptr noundef, i64 noundef, i64 noundef, ptr noundef) #2

; Function Attrs: nounwind
declare void @free(ptr noundef) #4

declare i32 @fclose(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 = { "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 allocsize(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 "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 #5 = { nounwind }
attributes #6 = { nounwind allocsize(0) }

!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 = !{!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"

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

; Function Attrs: nounwind uwtable
define dso_local noundef zeroext i1 @files_read(ptr nocapture noundef readonly %0, ptr noundef %1, ptr noundef writeonly %2) local_unnamed_addr #0 {
  %4 = tail call noalias ptr @fopen(ptr noundef %0, ptr noundef nonnull @.str)
  %.not = icmp eq ptr %4, null
  br i1 %.not, label %20, label %5

5:                                                ; preds = %3
  %6 = tail call i32 @fseek(ptr noundef nonnull %4, i64 noundef 0, i32 noundef 2)
  %7 = tail call i64 @ftell(ptr noundef nonnull %4)
  tail call void @rewind(ptr noundef nonnull %4)
  %.not23 = icmp eq ptr %2, null
  br i1 %.not23, label %9, label %8

8:                                                ; preds = %5
  store i64 %7, ptr %2, align 8, !tbaa !5
  br label %9

9:                                                ; preds = %8, %5
  %.not24 = icmp eq ptr %1, null
  br i1 %.not24, label %18, label %10

10:                                               ; preds = %9
  %11 = add i64 %7, 1
  %12 = tail call noalias ptr @malloc(i64 noundef %11) #4
  store ptr %12, ptr %1, align 8, !tbaa !9
  %13 = tail call i64 @fread(ptr noundef %12, i64 noundef 1, i64 noundef %7, ptr noundef nonnull %4)
  %.not25 = icmp eq i64 %13, %7
  %14 = load ptr, ptr %1, align 8, !tbaa !9
  br i1 %.not25, label %16, label %15

15:                                               ; preds = %10
  tail call void @free(ptr noundef %14) #5
  br label %20

16:                                               ; preds = %10
  %17 = getelementptr inbounds i8, ptr %14, i64 %7
  store i8 0, ptr %17, align 1, !tbaa !11
  br label %18

18:                                               ; preds = %9, %16
  %19 = tail call i32 @fclose(ptr noundef nonnull %4)
  br label %20

20:                                               ; preds = %15, %18, %3
  %.1 = phi i1 [ false, %3 ], [ false, %15 ], [ true, %18 ]
  ret i1 %.1
}

; Function Attrs: nofree nounwind
declare noalias noundef ptr @fopen(ptr nocapture noundef readonly, ptr nocapture noundef readonly) local_unnamed_addr #1

; Function Attrs: nofree nounwind
declare noundef i32 @fseek(ptr nocapture noundef, i64 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: nofree nounwind
declare noundef i64 @ftell(ptr nocapture noundef) local_unnamed_addr #1

; Function Attrs: nofree nounwind
declare void @rewind(ptr nocapture noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i64 @fread(ptr nocapture noundef, i64 noundef, i64 noundef, ptr nocapture noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #3

; Function Attrs: nofree nounwind
declare noundef i32 @fclose(ptr nocapture noundef) local_unnamed_addr #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 = { nofree 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 #2 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 allocsize(0) }
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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!7, !7, i64 0}


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