; LLVM IR from HarshCasper/NeoAlgo :: C/graphs (Kruskal_Algorithm)

; 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"

@n = external dso_local global i32, align 4
@Graph = external dso_local global [30 x [30 x i32]], align 16

; Function Attrs: nounwind uwtable
declare dso_local void @kruskalAlgo() #0

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

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

; Function Attrs: nounwind uwtable
declare dso_local void @print() #0

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  store i32 6, ptr @n, align 4, !tbaa !5
  store i32 0, ptr @Graph, align 16, !tbaa !5
  store i32 4, ptr getelementptr inbounds ([30 x i32], ptr @Graph, i64 0, i64 1), align 4, !tbaa !5
  store i32 4, ptr getelementptr inbounds ([30 x i32], ptr @Graph, i64 0, i64 2), align 8, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr @Graph, i64 0, i64 3), align 4, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr @Graph, i64 0, i64 4), align 16, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr @Graph, i64 0, i64 5), align 4, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr @Graph, i64 0, i64 6), align 8, !tbaa !5
  store i32 4, ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 1), align 8, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 1), i64 0, i64 1), align 4, !tbaa !5
  store i32 2, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 1), i64 0, i64 2), align 8, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 1), i64 0, i64 3), align 4, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 1), i64 0, i64 4), align 8, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 1), i64 0, i64 5), align 4, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 1), i64 0, i64 6), align 8, !tbaa !5
  store i32 4, ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 2), align 16, !tbaa !5
  store i32 2, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 2), i64 0, i64 1), align 4, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 2), i64 0, i64 2), align 8, !tbaa !5
  store i32 3, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 2), i64 0, i64 3), align 4, !tbaa !5
  store i32 4, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 2), i64 0, i64 4), align 16, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 2), i64 0, i64 5), align 4, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 2), i64 0, i64 6), align 8, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 3), align 8, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 3), i64 0, i64 1), align 4, !tbaa !5
  store i32 3, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 3), i64 0, i64 2), align 8, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 3), i64 0, i64 3), align 4, !tbaa !5
  store i32 3, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 3), i64 0, i64 4), align 8, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 3), i64 0, i64 5), align 4, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 3), i64 0, i64 6), align 8, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 4), align 16, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 4), i64 0, i64 1), align 4, !tbaa !5
  store i32 4, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 4), i64 0, i64 2), align 8, !tbaa !5
  store i32 3, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 4), i64 0, i64 3), align 4, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 4), i64 0, i64 4), align 16, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 4), i64 0, i64 5), align 4, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 4), i64 0, i64 6), align 8, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 5), align 8, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 5), i64 0, i64 1), align 4, !tbaa !5
  store i32 2, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 5), i64 0, i64 2), align 8, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 5), i64 0, i64 3), align 4, !tbaa !5
  store i32 3, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 5), i64 0, i64 4), align 8, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 5), i64 0, i64 5), align 4, !tbaa !5
  store i32 0, ptr getelementptr inbounds ([30 x i32], ptr getelementptr inbounds ([30 x [30 x i32]], ptr @Graph, i64 0, i64 5), i64 0, i64 6), align 8, !tbaa !5
  call void @kruskalAlgo()
  call void @print()
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #2
  ret i32 0
}

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 = { 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/C++ TBAA"}


; 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"

@n = external dso_local local_unnamed_addr global i32, align 4
@Graph = external dso_local local_unnamed_addr global [30 x [30 x i32]], align 16

; Function Attrs: nounwind uwtable
declare dso_local void @kruskalAlgo() local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @print() local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  store i32 6, ptr @n, align 4, !tbaa !5
  store i32 0, ptr @Graph, align 16, !tbaa !5
  store i32 4, ptr getelementptr inbounds (i8, ptr @Graph, i64 4), align 4, !tbaa !5
  store i32 4, ptr getelementptr inbounds (i8, ptr @Graph, i64 8), align 8, !tbaa !5
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 4 dereferenceable(16) getelementptr inbounds (i8, ptr @Graph, i64 12), i8 0, i64 16, i1 false)
  store i32 4, ptr getelementptr inbounds (i8, ptr @Graph, i64 120), align 8, !tbaa !5
  store i32 0, ptr getelementptr inbounds (i8, ptr @Graph, i64 124), align 4, !tbaa !5
  store i32 2, ptr getelementptr inbounds (i8, ptr @Graph, i64 128), align 16, !tbaa !5
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 4 dereferenceable(16) getelementptr inbounds (i8, ptr @Graph, i64 132), i8 0, i64 16, i1 false)
  store <4 x i32> <i32 4, i32 2, i32 0, i32 3>, ptr getelementptr inbounds (i8, ptr @Graph, i64 240), align 16, !tbaa !5
  store i32 4, ptr getelementptr inbounds (i8, ptr @Graph, i64 256), align 16, !tbaa !5
  store i32 0, ptr getelementptr inbounds (i8, ptr @Graph, i64 260), align 4, !tbaa !5
  store i32 0, ptr getelementptr inbounds (i8, ptr @Graph, i64 264), align 8, !tbaa !5
  store <4 x i32> <i32 0, i32 0, i32 3, i32 0>, ptr getelementptr inbounds (i8, ptr @Graph, i64 360), align 8, !tbaa !5
  store i32 3, ptr getelementptr inbounds (i8, ptr @Graph, i64 376), align 8, !tbaa !5
  store i32 0, ptr getelementptr inbounds (i8, ptr @Graph, i64 380), align 4, !tbaa !5
  store i32 0, ptr getelementptr inbounds (i8, ptr @Graph, i64 384), align 16, !tbaa !5
  store <4 x i32> <i32 0, i32 0, i32 4, i32 3>, ptr getelementptr inbounds (i8, ptr @Graph, i64 480), align 16, !tbaa !5
  store i32 0, ptr getelementptr inbounds (i8, ptr @Graph, i64 496), align 16, !tbaa !5
  store i32 0, ptr getelementptr inbounds (i8, ptr @Graph, i64 500), align 4, !tbaa !5
  store i32 0, ptr getelementptr inbounds (i8, ptr @Graph, i64 504), align 8, !tbaa !5
  store <4 x i32> <i32 0, i32 0, i32 2, i32 0>, ptr getelementptr inbounds (i8, ptr @Graph, i64 600), align 8, !tbaa !5
  store i32 3, ptr getelementptr inbounds (i8, ptr @Graph, i64 616), align 8, !tbaa !5
  store i32 0, ptr getelementptr inbounds (i8, ptr @Graph, i64 620), align 4, !tbaa !5
  store i32 0, ptr getelementptr inbounds (i8, ptr @Graph, i64 624), align 16, !tbaa !5
  tail call void @kruskalAlgo()
  tail call void @print()
  ret i32 0
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #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 nounwind willreturn memory(argmem: write) }

!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/C++ TBAA"}


; Effective O3 passes: GlobalOptPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass,TailCallElimPass