; LLVM IR from gem5/gem5 :: ext/libfdt (fdt_rw)

; 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.fdt_property = type { i32, i32, i32, [0 x i8] }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
declare hidden i32 @_fdt_rw_check_header(ptr noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; 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
define dso_local i32 @fdt_setprop(ptr noundef %0, i32 noundef %1, ptr noundef %2, ptr noundef %3, i32 noundef %4) #1 {
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca ptr, align 8
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  store ptr %0, ptr %7, align 8, !tbaa !5
  store i32 %1, ptr %8, align 4, !tbaa !9
  store ptr %2, ptr %9, align 8, !tbaa !5
  store ptr %3, ptr %10, align 8, !tbaa !5
  store i32 %4, ptr %11, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #3
  %16 = load ptr, ptr %7, align 8, !tbaa !5
  %17 = call i32 @_fdt_rw_check_header(ptr noundef %16)
  store i32 %17, ptr %14, align 4, !tbaa !9
  %18 = icmp ne i32 %17, 0
  br i1 %18, label %19, label %21

19:                                               ; preds = %5
  %20 = load i32, ptr %14, align 4, !tbaa !9
  store i32 %20, ptr %6, align 4
  store i32 1, ptr %15, align 4
  br label %22

21:                                               ; preds = %5
  store i32 0, ptr %15, align 4
  br label %22

22:                                               ; preds = %21, %19
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #3
  %23 = load i32, ptr %15, align 4
  switch i32 %23, label %50 [
    i32 0, label %24
  ]

24:                                               ; preds = %22
  %25 = load ptr, ptr %7, align 8, !tbaa !5
  %26 = load i32, ptr %8, align 4, !tbaa !9
  %27 = load ptr, ptr %9, align 8, !tbaa !5
  %28 = load i32, ptr %11, align 4, !tbaa !9
  %29 = call i32 @_fdt_resize_property(ptr noundef %25, i32 noundef %26, ptr noundef %27, i32 noundef %28, ptr noundef %12)
  store i32 %29, ptr %13, align 4, !tbaa !9
  %30 = load i32, ptr %13, align 4, !tbaa !9
  %31 = icmp eq i32 %30, -1
  br i1 %31, label %32, label %38

32:                                               ; preds = %24
  %33 = load ptr, ptr %7, align 8, !tbaa !5
  %34 = load i32, ptr %8, align 4, !tbaa !9
  %35 = load ptr, ptr %9, align 8, !tbaa !5
  %36 = load i32, ptr %11, align 4, !tbaa !9
  %37 = call i32 @_fdt_add_property(ptr noundef %33, i32 noundef %34, ptr noundef %35, i32 noundef %36, ptr noundef %12)
  store i32 %37, ptr %13, align 4, !tbaa !9
  br label %38

38:                                               ; preds = %32, %24
  %39 = load i32, ptr %13, align 4, !tbaa !9
  %40 = icmp ne i32 %39, 0
  br i1 %40, label %41, label %43

41:                                               ; preds = %38
  %42 = load i32, ptr %13, align 4, !tbaa !9
  store i32 %42, ptr %6, align 4
  store i32 1, ptr %15, align 4
  br label %50

43:                                               ; preds = %38
  %44 = load ptr, ptr %12, align 8, !tbaa !5
  %45 = getelementptr inbounds %struct.fdt_property, ptr %44, i32 0, i32 3
  %46 = getelementptr inbounds [0 x i8], ptr %45, i64 0, i64 0
  %47 = load ptr, ptr %10, align 8, !tbaa !5
  %48 = load i32, ptr %11, align 4, !tbaa !9
  %49 = sext i32 %48 to i64
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %46, ptr align 1 %47, i64 %49, i1 false)
  store i32 0, ptr %6, align 4
  store i32 1, ptr %15, align 4
  br label %50

50:                                               ; preds = %43, %41, %22
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #3
  %51 = load i32, ptr %6, align 4
  ret i32 %51
}

; Function Attrs: nounwind uwtable
declare hidden i32 @_fdt_resize_property(ptr noundef, i32 noundef, ptr noundef, i32 noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
declare hidden i32 @_fdt_add_property(ptr noundef, i32 noundef, ptr noundef, i32 noundef, ptr noundef) #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}


; 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: nounwind uwtable
declare hidden i32 @_fdt_rw_check_header(ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; 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
define dso_local i32 @fdt_setprop(ptr noundef %0, i32 noundef %1, ptr noundef %2, ptr nocapture noundef readonly %3, i32 noundef %4) local_unnamed_addr #1 {
  %6 = alloca ptr, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #3
  %7 = tail call i32 @_fdt_rw_check_header(ptr noundef %0)
  %.not = icmp eq i32 %7, 0
  br i1 %.not, label %8, label %18

8:                                                ; preds = %5
  %9 = call i32 @_fdt_resize_property(ptr noundef %0, i32 noundef %1, ptr noundef %2, i32 noundef %4, ptr noundef nonnull %6)
  %10 = icmp eq i32 %9, -1
  br i1 %10, label %11, label %13

11:                                               ; preds = %8
  %12 = call i32 @_fdt_add_property(ptr noundef %0, i32 noundef %1, ptr noundef %2, i32 noundef %4, ptr noundef nonnull %6)
  br label %13

13:                                               ; preds = %11, %8
  %.017 = phi i32 [ %12, %11 ], [ %9, %8 ]
  %.not19 = icmp eq i32 %.017, 0
  br i1 %.not19, label %14, label %18

14:                                               ; preds = %13
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = getelementptr inbounds i8, ptr %15, i64 12
  %17 = sext i32 %4 to i64
  call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 4 %16, ptr align 1 %3, i64 %17, i1 false)
  br label %18

18:                                               ; preds = %13, %5, %14
  %.1 = phi i32 [ 0, %14 ], [ %7, %5 ], [ %.017, %13 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #3
  ret i32 %.1
}

; Function Attrs: nounwind uwtable
declare hidden i32 @_fdt_resize_property(ptr noundef, i32 noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare hidden i32 @_fdt_add_property(ptr noundef, i32 noundef, ptr noundef, i32 noundef, ptr noundef) 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


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