; LLVM IR from kala13x/libxutils :: src/sys (xfs)

; 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"

; 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 @XFile_GetStats(ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @XFile_GetLine(ptr noundef, ptr noundef, i64 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @XFile_GetLineCount(ptr noundef %0) #1 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  %4 = alloca [2048 x i8], align 16
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 2048, ptr %4) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 0, ptr %5, align 4, !tbaa !9
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = call i32 @XFile_GetStats(ptr noundef %7)
  %9 = icmp sgt i32 %8, 0
  br i1 %9, label %11, label %10

10:                                               ; preds = %1
  store i32 -1, ptr %2, align 4
  store i32 1, ptr %6, align 4
  br label %22

11:                                               ; preds = %1
  br label %12

12:                                               ; preds = %17, %11
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = getelementptr inbounds [2048 x i8], ptr %4, i64 0, i64 0
  %15 = call i32 @XFile_GetLine(ptr noundef %13, ptr noundef %14, i64 noundef 2048)
  %16 = icmp sgt i32 %15, 0
  br i1 %16, label %17, label %20

17:                                               ; preds = %12
  %18 = load i32, ptr %5, align 4, !tbaa !9
  %19 = add nsw i32 %18, 1
  store i32 %19, ptr %5, align 4, !tbaa !9
  br label %12, !llvm.loop !11

20:                                               ; preds = %12
  %21 = load i32, ptr %5, align 4, !tbaa !9
  store i32 %21, ptr %2, align 4
  store i32 1, ptr %6, align 4
  br label %22

22:                                               ; preds = %20, %10
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  call void @llvm.lifetime.end.p0(i64 2048, ptr %4) #2
  %23 = load i32, ptr %2, align 4
  ret i32 %23
}

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 = { 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 = distinct !{!11, !12}
!12 = !{!"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"

; 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 @XFile_GetStats(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @XFile_GetLine(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local i32 @XFile_GetLineCount(ptr noundef %0) local_unnamed_addr #1 {
  %2 = alloca [2048 x i8], align 16
  call void @llvm.lifetime.start.p0(i64 2048, ptr nonnull %2) #2
  %3 = tail call i32 @XFile_GetStats(ptr noundef %0)
  %4 = icmp sgt i32 %3, 0
  br i1 %4, label %.preheader, label %.loopexit

.preheader:                                       ; preds = %1, %.preheader
  %.0 = phi i32 [ %7, %.preheader ], [ 0, %1 ]
  %5 = call i32 @XFile_GetLine(ptr noundef %0, ptr noundef nonnull %2, i64 noundef 2048)
  %6 = icmp sgt i32 %5, 0
  %7 = add nuw nsw i32 %.0, 1
  br i1 %6, label %.preheader, label %.loopexit, !llvm.loop !5

.loopexit:                                        ; preds = %.preheader, %1
  %.04 = phi i32 [ -1, %1 ], [ %.0, %.preheader ]
  call void @llvm.lifetime.end.p0(i64 2048, ptr nonnull %2) #2
  ret i32 %.04
}

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 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass