; LLVM IR from ekoontz/graphlab :: src/graphlab/extern/metis/libmetis/kwayrefine.ll_libmetis (IsBalanced)

; 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: nounwind uwtable
define dso_local i64 @libmetis__IsBalanced(ptr noundef %0, i64 noundef %1, ptr noundef %2, float noundef %3) #1 {
  %5 = alloca i64, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca ptr, align 8
  %9 = alloca float, align 4
  %10 = alloca i64, align 8
  %11 = alloca i64, align 8
  %12 = alloca i64, align 8
  %13 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store i64 %1, ptr %7, align 8, !tbaa !9
  store ptr %2, ptr %8, align 8, !tbaa !5
  store float %3, ptr %9, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #3
  %14 = load i64, ptr %7, align 8, !tbaa !9
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = call i64 @libmetis__idxsum(i64 noundef %14, ptr noundef %15, i64 noundef 1)
  store i64 %16, ptr %12, align 8, !tbaa !9
  store i64 0, ptr %10, align 8, !tbaa !9
  br label %17

17:                                               ; preds = %42, %4
  %18 = load i64, ptr %10, align 8, !tbaa !9
  %19 = load i64, ptr %7, align 8, !tbaa !9
  %20 = icmp slt i64 %18, %19
  br i1 %20, label %21, label %45

21:                                               ; preds = %17
  %22 = load ptr, ptr %6, align 8, !tbaa !5
  %23 = load i64, ptr %10, align 8, !tbaa !9
  %24 = getelementptr inbounds i64, ptr %22, i64 %23
  %25 = load i64, ptr %24, align 8, !tbaa !9
  %26 = sitofp i64 %25 to double
  %27 = load ptr, ptr %8, align 8, !tbaa !5
  %28 = load i64, ptr %10, align 8, !tbaa !9
  %29 = getelementptr inbounds float, ptr %27, i64 %28
  %30 = load float, ptr %29, align 4, !tbaa !11
  %31 = load i64, ptr %12, align 8, !tbaa !9
  %32 = sitofp i64 %31 to float
  %33 = fmul float %30, %32
  %34 = fpext float %33 to double
  %35 = load float, ptr %9, align 4, !tbaa !11
  %36 = fpext float %35 to double
  %37 = fadd double %36, 5.000000e-03
  %38 = fmul double %34, %37
  %39 = fcmp ogt double %26, %38
  br i1 %39, label %40, label %41

40:                                               ; preds = %21
  store i64 0, ptr %5, align 8
  store i32 1, ptr %13, align 4
  br label %46

41:                                               ; preds = %21
  br label %42

42:                                               ; preds = %41
  %43 = load i64, ptr %10, align 8, !tbaa !9
  %44 = add nsw i64 %43, 1
  store i64 %44, ptr %10, align 8, !tbaa !9
  br label %17, !llvm.loop !13

45:                                               ; preds = %17
  store i64 1, ptr %5, align 8
  store i32 1, ptr %13, align 4
  br label %46

46:                                               ; preds = %45, %40
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  %47 = load i64, ptr %5, align 8
  ret i64 %47
}

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

declare i64 @libmetis__idxsum(i64 noundef, ptr noundef, i64 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 = { "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 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"float", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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: nounwind uwtable
define dso_local range(i64 0, 2) i64 @libmetis__IsBalanced(ptr noundef %0, i64 noundef %1, ptr nocapture noundef readonly %2, float noundef %3) local_unnamed_addr #0 {
  %5 = tail call i64 @libmetis__idxsum(i64 noundef %1, ptr noundef %0, i64 noundef 1) #2
  %6 = icmp sgt i64 %1, 0
  br i1 %6, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %4
  %7 = sitofp i64 %5 to float
  %8 = fpext float %3 to double
  %9 = fadd double %8, 5.000000e-03
  br label %12

10:                                               ; preds = %12
  %11 = add nuw nsw i64 %.01112, 1
  %exitcond.not = icmp eq i64 %11, %1
  br i1 %exitcond.not, label %._crit_edge, label %12, !llvm.loop !5

12:                                               ; preds = %.lr.ph, %10
  %.01112 = phi i64 [ 0, %.lr.ph ], [ %11, %10 ]
  %13 = getelementptr inbounds i64, ptr %0, i64 %.01112
  %14 = load i64, ptr %13, align 8, !tbaa !7
  %15 = sitofp i64 %14 to double
  %16 = getelementptr inbounds float, ptr %2, i64 %.01112
  %17 = load float, ptr %16, align 4, !tbaa !11
  %18 = fmul float %17, %7
  %19 = fpext float %18 to double
  %20 = fmul double %9, %19
  %21 = fcmp olt double %20, %15
  br i1 %21, label %._crit_edge, label %10

._crit_edge:                                      ; preds = %12, %10, %4
  %.0 = phi i64 [ 1, %4 ], [ 1, %10 ], [ 0, %12 ]
  ret i64 %.0
}

declare i64 @libmetis__idxsum(i64 noundef, ptr noundef, i64 noundef) local_unnamed_addr #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 = { "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"}
!7 = !{!8, !8, i64 0}
!8 = !{!"long", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C/C++ TBAA"}
!11 = !{!12, !12, i64 0}
!12 = !{!"float", !9, i64 0}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass