; LLVM IR from VastoLorde95/Competitive-Programming :: CodeChef/IPC/IPC15FLA/TREEPAL/A.ll (Z10initializev)

; 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.node = type { [26 x i32], i32, i32, i32 }

@tree = external dso_local global [131072 x %struct.node], align 16
@num = external dso_local global i32, align 4
@suff = external dso_local global i32, align 4

; 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: mustprogress nounwind uwtable
declare dso_local void @_ZN4nodeC2Ev(ptr noundef nonnull align 4 dereferenceable(116)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z10initializev() #2 {
  %1 = alloca i32, align 4
  %2 = alloca %struct.node, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #4
  store i32 1, ptr %1, align 4, !tbaa !5
  br label %3

3:                                                ; preds = %11, %0
  %4 = load i32, ptr %1, align 4, !tbaa !5
  %5 = icmp slt i32 %4, 131072
  br i1 %5, label %7, label %6

6:                                                ; preds = %3
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #4
  br label %14

7:                                                ; preds = %3
  call void @llvm.lifetime.start.p0(i64 116, ptr %2) #4
  call void @_ZN4nodeC2Ev(ptr noundef nonnull align 4 dereferenceable(116) %2)
  %8 = load i32, ptr %1, align 4, !tbaa !5
  %9 = sext i32 %8 to i64
  %10 = getelementptr inbounds [131072 x %struct.node], ptr @tree, i64 0, i64 %9
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %10, ptr align 4 %2, i64 116, i1 false), !tbaa.struct !9
  call void @llvm.lifetime.end.p0(i64 116, ptr %2) #4
  br label %11

11:                                               ; preds = %7
  %12 = load i32, ptr %1, align 4, !tbaa !5
  %13 = add nsw i32 %12, 1
  store i32 %13, ptr %1, align 4, !tbaa !5
  br label %3, !llvm.loop !11

14:                                               ; preds = %6
  store i32 2, ptr @num, align 4, !tbaa !5
  store i32 2, ptr @suff, align 4, !tbaa !5
  store i32 -1, ptr getelementptr inbounds (%struct.node, ptr getelementptr inbounds ([131072 x %struct.node], ptr @tree, i64 0, i64 1), i32 0, i32 1), align 4, !tbaa !13
  store i32 1, ptr getelementptr inbounds (%struct.node, ptr getelementptr inbounds ([131072 x %struct.node], ptr @tree, i64 0, i64 1), i32 0, i32 2), align 4, !tbaa !15
  store i32 0, ptr getelementptr inbounds (%struct.node, ptr getelementptr inbounds ([131072 x %struct.node], ptr @tree, i64 0, i64 2), i32 0, i32 1), align 8, !tbaa !13
  store i32 1, ptr getelementptr inbounds (%struct.node, ptr getelementptr inbounds ([131072 x %struct.node], ptr @tree, i64 0, i64 2), i32 0, i32 2), align 4, !tbaa !15
  ret void
}

; 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) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 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 #3 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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++ TBAA"}
!9 = !{i64 0, i64 104, !10, i64 104, i64 4, !5, i64 108, i64 4, !5, i64 112, i64 4, !5}
!10 = !{!7, !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !6, i64 104}
!14 = !{!"_ZTS4node", !7, i64 0, !6, i64 104, !6, i64 108, !6, i64 112}
!15 = !{!14, !6, i64 108}


; 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"

%struct.node = type { [26 x i32], i32, i32, i32 }

@tree = external dso_local local_unnamed_addr global [131072 x %struct.node], align 16
@num = external dso_local local_unnamed_addr global i32, align 4
@suff = external dso_local local_unnamed_addr global i32, align 4

; 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: mustprogress nounwind uwtable
declare dso_local void @_ZN4nodeC2Ev(ptr noundef nonnull align 4 dereferenceable(116)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z10initializev() local_unnamed_addr #1 {
  %1 = alloca %struct.node, align 4
  br label %3

2:                                                ; preds = %3
  store i32 2, ptr @num, align 4, !tbaa !5
  store i32 2, ptr @suff, align 4, !tbaa !5
  store i32 -1, ptr getelementptr inbounds (i8, ptr @tree, i64 220), align 4, !tbaa !9
  store i32 1, ptr getelementptr inbounds (i8, ptr @tree, i64 224), align 16, !tbaa !11
  store i32 0, ptr getelementptr inbounds (i8, ptr @tree, i64 336), align 16, !tbaa !9
  store i32 1, ptr getelementptr inbounds (i8, ptr @tree, i64 340), align 4, !tbaa !11
  ret void

3:                                                ; preds = %0, %3
  %indvars.iv = phi i64 [ 1, %0 ], [ %indvars.iv.next, %3 ]
  call void @llvm.lifetime.start.p0(i64 116, ptr nonnull %1) #3
  call void @_ZN4nodeC2Ev(ptr noundef nonnull align 4 dereferenceable(116) %1)
  %4 = getelementptr inbounds [131072 x %struct.node], ptr @tree, i64 0, i64 %indvars.iv
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(116) %4, ptr noundef nonnull align 4 dereferenceable(116) %1, i64 116, i1 false), !tbaa.struct !12
  call void @llvm.lifetime.end.p0(i64 116, ptr nonnull %1) #3
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, 131072
  br i1 %exitcond.not, label %2, label %3, !llvm.loop !14
}

; 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

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 104}
!10 = !{!"_ZTS4node", !7, i64 0, !6, i64 104, !6, i64 108, !6, i64 112}
!11 = !{!10, !6, i64 108}
!12 = !{i64 0, i64 104, !13, i64 104, i64 4, !5, i64 108, i64 4, !5, i64 112, i64 4, !5}
!13 = !{!7, !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass