; LLVM IR from littlefs-project/littlefs :: bd (lfs_filebd)

; 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.lfs_config = type { ptr, ptr, ptr, ptr, ptr, i32, i32, i32, i32, i32, i32, i32, i32, ptr, ptr, ptr, i32, i32, i32, i32, i32 }
%struct.lfs_filebd = type { i32, ptr }

; Function Attrs: nounwind uwtable
define dso_local i32 @lfs_filebd_create(ptr noundef %0, ptr noundef %1, ptr noundef %2) #0 {
  %4 = alloca i32, align 4
  %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 i32, align 4
  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) #4
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.lfs_config, ptr %11, i32 0, i32 0
  %13 = load ptr, ptr %12, align 8, !tbaa !9
  store ptr %13, ptr %8, align 8, !tbaa !5
  %14 = load ptr, ptr %7, align 8, !tbaa !5
  %15 = load ptr, ptr %8, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.lfs_filebd, ptr %15, i32 0, i32 1
  store ptr %14, ptr %16, align 8, !tbaa !12
  %17 = load ptr, ptr %6, align 8, !tbaa !5
  %18 = call i32 (ptr, i32, ...) @open(ptr noundef %17, i32 noundef 66, i32 noundef 438)
  %19 = load ptr, ptr %8, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.lfs_filebd, ptr %19, i32 0, i32 0
  store i32 %18, ptr %20, align 8, !tbaa !14
  %21 = load ptr, ptr %8, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.lfs_filebd, ptr %21, i32 0, i32 0
  %23 = load i32, ptr %22, align 8, !tbaa !14
  %24 = icmp slt i32 %23, 0
  br i1 %24, label %25, label %30

25:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #4
  %26 = call ptr @__errno_location() #5
  %27 = load i32, ptr %26, align 4, !tbaa !15
  %28 = sub nsw i32 0, %27
  store i32 %28, ptr %9, align 4, !tbaa !15
  %29 = load i32, ptr %9, align 4, !tbaa !15
  store i32 %29, ptr %4, align 4
  store i32 1, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  br label %31

30:                                               ; preds = %3
  store i32 0, ptr %4, align 4
  store i32 1, ptr %10, align 4
  br label %31

31:                                               ; preds = %30, %25
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  %32 = load i32, ptr %4, align 4
  ret i32 %32
}

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

declare i32 @open(ptr noundef, i32 noundef, ...) #2

; Function Attrs: nounwind willreturn memory(none)
declare ptr @__errno_location() #3

; 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 willreturn memory(none) "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(none) }

!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, !6, i64 0}
!10 = !{!"lfs_config", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !11, i64 40, !11, i64 44, !11, i64 48, !11, i64 52, !11, i64 56, !11, i64 60, !11, i64 64, !11, i64 68, !6, i64 72, !6, i64 80, !6, i64 88, !11, i64 96, !11, i64 100, !11, i64 104, !11, i64 108, !11, i64 112}
!11 = !{!"int", !7, i64 0}
!12 = !{!13, !6, i64 8}
!13 = !{!"lfs_filebd", !11, i64 0, !6, i64 8}
!14 = !{!13, !11, i64 0}
!15 = !{!11, !11, 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"

; Function Attrs: nofree nounwind uwtable
define dso_local range(i32 -2147483647, -2147483648) i32 @lfs_filebd_create(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1, ptr noundef %2) local_unnamed_addr #0 {
  %4 = load ptr, ptr %0, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %4, i64 8
  store ptr %2, ptr %5, align 8, !tbaa !11
  %6 = tail call i32 (ptr, i32, ...) @open(ptr noundef %1, i32 noundef 66, i32 noundef 438) #3
  store i32 %6, ptr %4, align 8, !tbaa !13
  %7 = icmp slt i32 %6, 0
  br i1 %7, label %8, label %12

8:                                                ; preds = %3
  %9 = tail call ptr @__errno_location() #4
  %10 = load i32, ptr %9, align 4, !tbaa !14
  %11 = sub nsw i32 0, %10
  br label %12

12:                                               ; preds = %3, %8
  %.0 = phi i32 [ %11, %8 ], [ 0, %3 ]
  ret i32 %.0
}

; Function Attrs: nofree
declare noundef i32 @open(ptr nocapture noundef readonly, i32 noundef, ...) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nosync nounwind willreturn memory(none)
declare ptr @__errno_location() local_unnamed_addr #2

attributes #0 = { nofree 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 "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 nosync nounwind willreturn memory(none) "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(none) }

!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 = !{!"lfs_config", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !10, i64 40, !10, i64 44, !10, i64 48, !10, i64 52, !10, i64 56, !10, i64 60, !10, i64 64, !10, i64 68, !7, i64 72, !7, i64 80, !7, i64 88, !10, i64 96, !10, i64 100, !10, i64 104, !10, i64 108, !10, i64 112}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!12, !7, i64 8}
!12 = !{!"lfs_filebd", !10, i64 0, !7, i64 8}
!13 = !{!12, !10, i64 0}
!14 = !{!10, !10, i64 0}


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