; LLVM IR from ctlst-tech/catpilot :: os/fatfs/fsa (fatfs)

; 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"

@FreeRTOS_errno = external global i32, align 4

; Function Attrs: nounwind uwtable
declare dso_local ptr @stream_to_fatfs(ptr noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @fatfs_to_errno(i32 noundef) #0

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

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

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

14:                                               ; preds = %3
  store i32 9, ptr @FreeRTOS_errno, align 4, !tbaa !11
  store i32 -1, ptr %4, align 4
  store i32 1, ptr %11, align 4
  br label %42

15:                                               ; preds = %3
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = call ptr @stream_to_fatfs(ptr noundef %16)
  store ptr %17, ptr %10, align 8, !tbaa !5
  %18 = load ptr, ptr %10, align 8, !tbaa !5
  %19 = icmp eq ptr %18, null
  br i1 %19, label %20, label %21

20:                                               ; preds = %15
  store i32 9, ptr @FreeRTOS_errno, align 4, !tbaa !11
  store i32 -1, ptr %4, align 4
  store i32 1, ptr %11, align 4
  br label %42

21:                                               ; preds = %15
  %22 = load ptr, ptr %10, align 8, !tbaa !5
  %23 = load ptr, ptr %6, align 8, !tbaa !5
  %24 = load i64, ptr %7, align 8, !tbaa !9
  %25 = trunc i64 %24 to i32
  %26 = call i32 @f_write(ptr noundef %22, ptr noundef %23, i32 noundef %25, ptr noundef %8)
  store i32 %26, ptr %9, align 4, !tbaa !11
  %27 = load i32, ptr %9, align 4, !tbaa !11
  %28 = icmp ne i32 %27, 0
  br i1 %28, label %29, label %32

29:                                               ; preds = %21
  %30 = load i32, ptr %9, align 4, !tbaa !11
  %31 = call i32 @fatfs_to_errno(i32 noundef %30)
  store i32 %31, ptr @FreeRTOS_errno, align 4, !tbaa !11
  store i32 -1, ptr %4, align 4
  store i32 1, ptr %11, align 4
  br label %42

32:                                               ; preds = %21
  %33 = load i32, ptr %8, align 4, !tbaa !11
  %34 = zext i32 %33 to i64
  %35 = load i64, ptr %7, align 8, !tbaa !9
  %36 = icmp ne i64 %34, %35
  br i1 %36, label %37, label %40

37:                                               ; preds = %32
  %38 = load i32, ptr %9, align 4, !tbaa !11
  %39 = call i32 @fatfs_to_errno(i32 noundef %38)
  store i32 %39, ptr @FreeRTOS_errno, align 4, !tbaa !11
  store i32 -1, ptr %4, align 4
  store i32 1, ptr %11, align 4
  br label %42

40:                                               ; preds = %32
  %41 = load i32, ptr %8, align 4, !tbaa !11
  store i32 %41, ptr %4, align 4
  store i32 1, ptr %11, align 4
  br label %42

42:                                               ; preds = %40, %37, %29, %20, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  %43 = load i32, ptr %4, align 4
  ret i32 %43
}

declare i32 @f_write(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #2

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 }

!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}


; 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"

@FreeRTOS_errno = external local_unnamed_addr global i32, align 4

; Function Attrs: nounwind uwtable
declare dso_local ptr @stream_to_fatfs(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @fatfs_to_errno(i32 noundef) local_unnamed_addr #0

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

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

; Function Attrs: nounwind uwtable
define dso_local i32 @fatfs_write(ptr noundef %0, ptr noundef %1, i64 noundef %2) local_unnamed_addr #0 {
  %4 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #3
  store i32 0, ptr @FreeRTOS_errno, align 4, !tbaa !5
  %5 = icmp eq ptr %0, null
  br i1 %5, label %.sink.split, label %6

6:                                                ; preds = %3
  %7 = tail call ptr @stream_to_fatfs(ptr noundef nonnull %0)
  %8 = icmp eq ptr %7, null
  br i1 %8, label %.sink.split, label %9

9:                                                ; preds = %6
  %10 = trunc i64 %2 to i32
  %11 = call i32 @f_write(ptr noundef nonnull %7, ptr noundef %1, i32 noundef %10, ptr noundef nonnull %4) #3
  %.not = icmp eq i32 %11, 0
  br i1 %.not, label %12, label %.sink.split.sink.split

12:                                               ; preds = %9
  %13 = load i32, ptr %4, align 4, !tbaa !5
  %14 = zext i32 %13 to i64
  %.not13 = icmp eq i64 %14, %2
  br i1 %.not13, label %16, label %.sink.split.sink.split

.sink.split.sink.split:                           ; preds = %12, %9
  %.sink14 = phi i32 [ %11, %9 ], [ 0, %12 ]
  %15 = call i32 @fatfs_to_errno(i32 noundef %.sink14)
  br label %.sink.split

.sink.split:                                      ; preds = %.sink.split.sink.split, %6, %3
  %.sink = phi i32 [ 9, %3 ], [ 9, %6 ], [ %15, %.sink.split.sink.split ]
  store i32 %.sink, ptr @FreeRTOS_errno, align 4, !tbaa !5
  br label %16

16:                                               ; preds = %.sink.split, %12
  %.0 = phi i32 [ %13, %12 ], [ -1, %.sink.split ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #3
  ret i32 %.0
}

declare i32 @f_write(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #2

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 = { mustprogress 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 }

!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"}


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