; LLVM IR from siconos/siconos :: externals/lbl/metis4/kwayrefine.ll_ (ComputeKWayBalanceBoundary)

; 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.graphdef = type { ptr, ptr, i32, i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, i32, i32, ptr, ptr, i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr, i32, ptr, ptr, ptr, ptr }
%struct.rinfodef = type { i32, i32, i32, ptr }

; 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 void @__ComputeKWayBalanceBoundary(ptr noundef %0, ptr noundef %1, i32 noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca ptr, align 8
  %11 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #3
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.graphdef, ptr %12, i32 0, i32 2
  %14 = load i32, ptr %13, align 8, !tbaa !11
  store i32 %14, ptr %8, align 4, !tbaa !9
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.graphdef, ptr %15, i32 0, i32 18
  %17 = load ptr, ptr %16, align 8, !tbaa !13
  store ptr %17, ptr %10, align 8, !tbaa !5
  %18 = load i32, ptr %8, align 4, !tbaa !9
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.graphdef, ptr %19, i32 0, i32 17
  %21 = load ptr, ptr %20, align 8, !tbaa !14
  %22 = call ptr @__idxset(i32 noundef %18, i32 noundef -1, ptr noundef %21)
  store ptr %22, ptr %11, align 8, !tbaa !5
  store i32 0, ptr %9, align 4, !tbaa !9
  store i32 0, ptr %7, align 4, !tbaa !9
  br label %23

23:                                               ; preds = %53, %3
  %24 = load i32, ptr %7, align 4, !tbaa !9
  %25 = load i32, ptr %8, align 4, !tbaa !9
  %26 = icmp slt i32 %24, %25
  br i1 %26, label %27, label %56

27:                                               ; preds = %23
  %28 = load ptr, ptr %5, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.graphdef, ptr %28, i32 0, i32 21
  %30 = load ptr, ptr %29, align 8, !tbaa !15
  %31 = load i32, ptr %7, align 4, !tbaa !9
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds %struct.rinfodef, ptr %30, i64 %32
  %34 = getelementptr inbounds %struct.rinfodef, ptr %33, i32 0, i32 1
  %35 = load i32, ptr %34, align 4, !tbaa !16
  %36 = icmp sgt i32 %35, 0
  br i1 %36, label %37, label %52

37:                                               ; preds = %27
  br label %38

38:                                               ; preds = %37
  %39 = load i32, ptr %7, align 4, !tbaa !9
  %40 = load ptr, ptr %10, align 8, !tbaa !5
  %41 = load i32, ptr %9, align 4, !tbaa !9
  %42 = sext i32 %41 to i64
  %43 = getelementptr inbounds i32, ptr %40, i64 %42
  store i32 %39, ptr %43, align 4, !tbaa !9
  %44 = load i32, ptr %9, align 4, !tbaa !9
  %45 = add nsw i32 %44, 1
  store i32 %45, ptr %9, align 4, !tbaa !9
  %46 = load ptr, ptr %11, align 8, !tbaa !5
  %47 = load i32, ptr %7, align 4, !tbaa !9
  %48 = sext i32 %47 to i64
  %49 = getelementptr inbounds i32, ptr %46, i64 %48
  store i32 %44, ptr %49, align 4, !tbaa !9
  br label %50

50:                                               ; preds = %38
  br label %51

51:                                               ; preds = %50
  br label %52

52:                                               ; preds = %51, %27
  br label %53

53:                                               ; preds = %52
  %54 = load i32, ptr %7, align 4, !tbaa !9
  %55 = add nsw i32 %54, 1
  store i32 %55, ptr %7, align 4, !tbaa !9
  br label %23, !llvm.loop !18

56:                                               ; preds = %23
  %57 = load i32, ptr %9, align 4, !tbaa !9
  %58 = load ptr, ptr %5, align 8, !tbaa !5
  %59 = getelementptr inbounds %struct.graphdef, ptr %58, i32 0, i32 16
  store i32 %57, ptr %59, align 8, !tbaa !20
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  ret void
}

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

declare ptr @__idxset(i32 noundef, i32 noundef, 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 = { "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 = !{!"graphdef", !6, i64 0, !6, i64 8, !10, i64 16, !10, i64 20, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72, !6, i64 80, !10, i64 88, !10, i64 92, !6, i64 96, !6, i64 104, !10, i64 112, !6, i64 120, !6, i64 128, !6, i64 136, !6, i64 144, !6, i64 152, !6, i64 160, !6, i64 168, !10, i64 176, !6, i64 184, !6, i64 192, !6, i64 200, !6, i64 208}
!13 = !{!12, !6, i64 128}
!14 = !{!12, !6, i64 120}
!15 = !{!12, !6, i64 152}
!16 = !{!17, !10, i64 4}
!17 = !{!"rinfodef", !10, i64 0, !10, i64 4, !10, i64 8, !6, i64 16}
!18 = distinct !{!18, !19}
!19 = !{!"llvm.loop.mustprogress"}
!20 = !{!12, !10, i64 112}


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

; Function Attrs: nounwind uwtable
define dso_local void @__ComputeKWayBalanceBoundary(ptr nocapture noundef readnone %0, ptr nocapture noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = getelementptr inbounds i8, ptr %1, i64 16
  %5 = load i32, ptr %4, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %1, i64 128
  %7 = load ptr, ptr %6, align 8, !tbaa !11
  %8 = getelementptr inbounds i8, ptr %1, i64 120
  %9 = load ptr, ptr %8, align 8, !tbaa !12
  %10 = tail call ptr @__idxset(i32 noundef %5, i32 noundef -1, ptr noundef %9) #2
  %11 = icmp sgt i32 %5, 0
  br i1 %11, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %3
  %12 = getelementptr inbounds i8, ptr %1, i64 152
  %13 = load ptr, ptr %12, align 8, !tbaa !13
  %wide.trip.count = zext nneg i32 %5 to i64
  %xtraiter = and i64 %wide.trip.count, 1
  %14 = icmp eq i32 %5, 1
  br i1 %14, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph.new

.lr.ph.new:                                       ; preds = %.lr.ph
  %unroll_iter = and i64 %wide.trip.count, 2147483646
  br label %15

15:                                               ; preds = %35, %.lr.ph.new
  %indvars.iv = phi i64 [ 0, %.lr.ph.new ], [ %indvars.iv.next.1, %35 ]
  %.01617 = phi i32 [ 0, %.lr.ph.new ], [ %.1.1, %35 ]
  %niter = phi i64 [ 0, %.lr.ph.new ], [ %niter.next.1, %35 ]
  %16 = getelementptr inbounds %struct.rinfodef, ptr %13, i64 %indvars.iv, i32 1
  %17 = load i32, ptr %16, align 4, !tbaa !14
  %18 = icmp sgt i32 %17, 0
  br i1 %18, label %19, label %25

19:                                               ; preds = %15
  %20 = sext i32 %.01617 to i64
  %21 = getelementptr inbounds i32, ptr %7, i64 %20
  %22 = trunc nuw nsw i64 %indvars.iv to i32
  store i32 %22, ptr %21, align 4, !tbaa !16
  %23 = add nsw i32 %.01617, 1
  %24 = getelementptr inbounds i32, ptr %10, i64 %indvars.iv
  store i32 %.01617, ptr %24, align 4, !tbaa !16
  br label %25

25:                                               ; preds = %15, %19
  %.1 = phi i32 [ %23, %19 ], [ %.01617, %15 ]
  %indvars.iv.next = or disjoint i64 %indvars.iv, 1
  %26 = getelementptr inbounds %struct.rinfodef, ptr %13, i64 %indvars.iv.next, i32 1
  %27 = load i32, ptr %26, align 4, !tbaa !14
  %28 = icmp sgt i32 %27, 0
  br i1 %28, label %29, label %35

29:                                               ; preds = %25
  %30 = sext i32 %.1 to i64
  %31 = getelementptr inbounds i32, ptr %7, i64 %30
  %32 = trunc nuw nsw i64 %indvars.iv.next to i32
  store i32 %32, ptr %31, align 4, !tbaa !16
  %33 = add nsw i32 %.1, 1
  %34 = getelementptr inbounds i32, ptr %10, i64 %indvars.iv.next
  store i32 %.1, ptr %34, align 4, !tbaa !16
  br label %35

35:                                               ; preds = %29, %25
  %.1.1 = phi i32 [ %33, %29 ], [ %.1, %25 ]
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
  %niter.next.1 = add i64 %niter, 2
  %niter.ncmp.1 = icmp eq i64 %niter.next.1, %unroll_iter
  br i1 %niter.ncmp.1, label %._crit_edge.loopexit.unr-lcssa, label %15, !llvm.loop !17

._crit_edge.loopexit.unr-lcssa:                   ; preds = %35, %.lr.ph
  %.1.lcssa.ph = phi i32 [ poison, %.lr.ph ], [ %.1.1, %35 ]
  %indvars.iv.unr = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next.1, %35 ]
  %.01617.unr = phi i32 [ 0, %.lr.ph ], [ %.1.1, %35 ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %._crit_edge, label %.epil.preheader

.epil.preheader:                                  ; preds = %._crit_edge.loopexit.unr-lcssa
  %36 = getelementptr inbounds %struct.rinfodef, ptr %13, i64 %indvars.iv.unr, i32 1
  %37 = load i32, ptr %36, align 4, !tbaa !14
  %38 = icmp sgt i32 %37, 0
  br i1 %38, label %39, label %._crit_edge

39:                                               ; preds = %.epil.preheader
  %40 = sext i32 %.01617.unr to i64
  %41 = getelementptr inbounds i32, ptr %7, i64 %40
  %42 = trunc nuw nsw i64 %indvars.iv.unr to i32
  store i32 %42, ptr %41, align 4, !tbaa !16
  %43 = add nsw i32 %.01617.unr, 1
  %44 = getelementptr inbounds i32, ptr %10, i64 %indvars.iv.unr
  store i32 %.01617.unr, ptr %44, align 4, !tbaa !16
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit.unr-lcssa, %39, %.epil.preheader, %3
  %.016.lcssa = phi i32 [ 0, %3 ], [ %.1.lcssa.ph, %._crit_edge.loopexit.unr-lcssa ], [ %43, %39 ], [ %.01617.unr, %.epil.preheader ]
  %45 = getelementptr inbounds i8, ptr %1, i64 112
  store i32 %.016.lcssa, ptr %45, align 8, !tbaa !19
  ret void
}

declare ptr @__idxset(i32 noundef, i32 noundef, ptr 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 = !{!6, !10, i64 16}
!6 = !{!"graphdef", !7, i64 0, !7, i64 8, !10, i64 16, !10, i64 20, !7, i64 24, !7, i64 32, !7, i64 40, !7, i64 48, !7, i64 56, !7, i64 64, !7, i64 72, !7, i64 80, !10, i64 88, !10, i64 92, !7, i64 96, !7, i64 104, !10, i64 112, !7, i64 120, !7, i64 128, !7, i64 136, !7, i64 144, !7, i64 152, !7, i64 160, !7, i64 168, !10, i64 176, !7, i64 184, !7, i64 192, !7, i64 200, !7, i64 208}
!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 128}
!12 = !{!6, !7, i64 120}
!13 = !{!6, !7, i64 152}
!14 = !{!15, !10, i64 4}
!15 = !{!"rinfodef", !10, i64 0, !10, i64 4, !10, i64 8, !7, i64 16}
!16 = !{!10, !10, i64 0}
!17 = distinct !{!17, !18}
!18 = !{!"llvm.loop.mustprogress"}
!19 = !{!6, !10, i64 112}


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