; LLVM IR from ElsevierSoftwareX/SOFTX-D-20-00016 :: GameplayFootball/src/libs/glee/GLee.ll_ (GLeeExtList_clean)

; 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.ExtensionList = type { ptr, ptr, i32 }

; 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
define dso_local void @__GLeeExtList_clean(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %4

4:                                                ; preds = %28, %1
  %5 = load i32, ptr %3, align 4, !tbaa !9
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.ExtensionList, ptr %6, i32 0, i32 2
  %8 = load i32, ptr %7, align 8, !tbaa !11
  %9 = icmp slt i32 %5, %8
  br i1 %9, label %10, label %31

10:                                               ; preds = %4
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.ExtensionList, ptr %11, i32 0, i32 0
  %13 = load ptr, ptr %12, align 8, !tbaa !13
  %14 = load i32, ptr %3, align 4, !tbaa !9
  %15 = sext i32 %14 to i64
  %16 = getelementptr inbounds ptr, ptr %13, i64 %15
  %17 = load ptr, ptr %16, align 8, !tbaa !5
  %18 = icmp ne ptr %17, null
  br i1 %18, label %19, label %27

19:                                               ; preds = %10
  %20 = load ptr, ptr %2, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.ExtensionList, ptr %20, i32 0, i32 0
  %22 = load ptr, ptr %21, align 8, !tbaa !13
  %23 = load i32, ptr %3, align 4, !tbaa !9
  %24 = sext i32 %23 to i64
  %25 = getelementptr inbounds ptr, ptr %22, i64 %24
  %26 = load ptr, ptr %25, align 8, !tbaa !5
  call void @free(ptr noundef %26) #3
  br label %27

27:                                               ; preds = %19, %10
  br label %28

28:                                               ; preds = %27
  %29 = load i32, ptr %3, align 4, !tbaa !9
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %3, align 4, !tbaa !9
  br label %4, !llvm.loop !14

31:                                               ; preds = %4
  %32 = load ptr, ptr %2, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.ExtensionList, ptr %32, i32 0, i32 0
  %34 = load ptr, ptr %33, align 8, !tbaa !13
  %35 = icmp ne ptr %34, null
  br i1 %35, label %36, label %40

36:                                               ; preds = %31
  %37 = load ptr, ptr %2, align 8, !tbaa !5
  %38 = getelementptr inbounds %struct.ExtensionList, ptr %37, i32 0, i32 0
  %39 = load ptr, ptr %38, align 8, !tbaa !13
  call void @free(ptr noundef %39) #3
  br label %40

40:                                               ; preds = %36, %31
  %41 = load ptr, ptr %2, align 8, !tbaa !5
  %42 = getelementptr inbounds %struct.ExtensionList, ptr %41, i32 0, i32 1
  %43 = load ptr, ptr %42, align 8, !tbaa !16
  %44 = icmp ne ptr %43, null
  br i1 %44, label %45, label %49

45:                                               ; preds = %40
  %46 = load ptr, ptr %2, align 8, !tbaa !5
  %47 = getelementptr inbounds %struct.ExtensionList, ptr %46, i32 0, i32 1
  %48 = load ptr, ptr %47, align 8, !tbaa !16
  call void @free(ptr noundef %48) #3
  br label %49

49:                                               ; preds = %45, %40
  %50 = load ptr, ptr %2, align 8, !tbaa !5
  %51 = getelementptr inbounds %struct.ExtensionList, ptr %50, i32 0, i32 0
  store ptr null, ptr %51, align 8, !tbaa !13
  %52 = load ptr, ptr %2, align 8, !tbaa !5
  %53 = getelementptr inbounds %struct.ExtensionList, ptr %52, i32 0, i32 1
  store ptr null, ptr %53, align 8, !tbaa !16
  %54 = load ptr, ptr %2, align 8, !tbaa !5
  %55 = getelementptr inbounds %struct.ExtensionList, ptr %54, i32 0, i32 2
  store i32 0, ptr %55, align 8, !tbaa !11
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  ret void
}

; Function Attrs: nounwind
declare void @free(ptr noundef) #2

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 "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 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 16}
!12 = !{!"", !6, i64 0, !6, i64 8, !10, i64 16}
!13 = !{!12, !6, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = !{!12, !6, i64 8}


; 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: nounwind uwtable
define dso_local void @__GLeeExtList_clean(ptr nocapture noundef %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 16
  %3 = load i32, ptr %2, align 8, !tbaa !5
  %4 = icmp sgt i32 %3, 0
  br i1 %4, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1, %10
  %5 = phi i32 [ %11, %10 ], [ %3, %1 ]
  %indvars.iv = phi i64 [ %indvars.iv.next, %10 ], [ 0, %1 ]
  %6 = load ptr, ptr %0, align 8, !tbaa !11
  %7 = getelementptr inbounds ptr, ptr %6, i64 %indvars.iv
  %8 = load ptr, ptr %7, align 8, !tbaa !12
  %.not17 = icmp eq ptr %8, null
  br i1 %.not17, label %10, label %9

9:                                                ; preds = %.lr.ph
  tail call void @free(ptr noundef nonnull %8) #3
  %.pre = load i32, ptr %2, align 8, !tbaa !5
  br label %10

10:                                               ; preds = %.lr.ph, %9
  %11 = phi i32 [ %5, %.lr.ph ], [ %.pre, %9 ]
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %12 = sext i32 %11 to i64
  %13 = icmp slt i64 %indvars.iv.next, %12
  br i1 %13, label %.lr.ph, label %._crit_edge, !llvm.loop !13

._crit_edge:                                      ; preds = %10, %1
  %14 = load ptr, ptr %0, align 8, !tbaa !11
  %.not = icmp eq ptr %14, null
  br i1 %.not, label %16, label %15

15:                                               ; preds = %._crit_edge
  tail call void @free(ptr noundef nonnull %14) #3
  br label %16

16:                                               ; preds = %15, %._crit_edge
  %17 = getelementptr inbounds i8, ptr %0, i64 8
  %18 = load ptr, ptr %17, align 8, !tbaa !15
  %.not16 = icmp eq ptr %18, null
  br i1 %.not16, label %20, label %19

19:                                               ; preds = %16
  tail call void @free(ptr noundef nonnull %18) #3
  br label %20

20:                                               ; preds = %19, %16
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(20) %0, i8 0, i64 20, i1 false)
  ret void
}

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #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 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 #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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, !10, i64 16}
!6 = !{!"", !7, i64 0, !7, i64 8, !10, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = !{!7, !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = !{!6, !7, i64 8}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,MemCpyOptPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass