; LLVM IR from GGiecold-zz/Cluster_Ensembles :: src/Cluster_Ensembles/Hypergraph_Partitioning/metis-5.1.0/libmetis (mcutil)

; 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: nounwind uwtable
define dso_local i32 @libmetis__ivecle(i32 noundef %0, ptr noundef %1, ptr noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  store i32 %0, ptr %5, align 4, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !9
  %8 = load i32, ptr %5, align 4, !tbaa !5
  %9 = add nsw i32 %8, -1
  store i32 %9, ptr %5, align 4, !tbaa !5
  br label %10

10:                                               ; preds = %27, %3
  %11 = load i32, ptr %5, align 4, !tbaa !5
  %12 = icmp sge i32 %11, 0
  br i1 %12, label %13, label %30

13:                                               ; preds = %10
  %14 = load ptr, ptr %6, align 8, !tbaa !9
  %15 = load i32, ptr %5, align 4, !tbaa !5
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds i32, ptr %14, i64 %16
  %18 = load i32, ptr %17, align 4, !tbaa !5
  %19 = load ptr, ptr %7, align 8, !tbaa !9
  %20 = load i32, ptr %5, align 4, !tbaa !5
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds i32, ptr %19, i64 %21
  %23 = load i32, ptr %22, align 4, !tbaa !5
  %24 = icmp sgt i32 %18, %23
  br i1 %24, label %25, label %26

25:                                               ; preds = %13
  store i32 0, ptr %4, align 4
  br label %31

26:                                               ; preds = %13
  br label %27

27:                                               ; preds = %26
  %28 = load i32, ptr %5, align 4, !tbaa !5
  %29 = add nsw i32 %28, -1
  store i32 %29, ptr %5, align 4, !tbaa !5
  br label %10, !llvm.loop !11

30:                                               ; preds = %10
  store i32 1, ptr %4, align 4
  br label %31

31:                                               ; preds = %30, %25
  %32 = load i32, ptr %4, align 4
  ret i32 %32
}

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" }

!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"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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: nofree norecurse nosync nounwind memory(argmem: read) uwtable
define dso_local range(i32 0, 2) i32 @libmetis__ivecle(i32 noundef %0, ptr nocapture noundef readonly %1, ptr nocapture noundef readonly %2) local_unnamed_addr #0 {
  %4 = zext i32 %0 to i64
  br label %5

5:                                                ; preds = %8, %3
  %indvars.iv = phi i64 [ %9, %8 ], [ %4, %3 ]
  %6 = trunc nuw i64 %indvars.iv to i32
  %7 = icmp sgt i32 %6, 0
  br i1 %7, label %8, label %15

8:                                                ; preds = %5
  %9 = add nsw i64 %indvars.iv, -1
  %10 = getelementptr inbounds i32, ptr %1, i64 %9
  %11 = load i32, ptr %10, align 4, !tbaa !5
  %12 = getelementptr inbounds i32, ptr %2, i64 %9
  %13 = load i32, ptr %12, align 4, !tbaa !5
  %14 = icmp sgt i32 %11, %13
  br i1 %14, label %15, label %5, !llvm.loop !9

15:                                               ; preds = %5, %8
  %.0 = phi i32 [ 0, %8 ], [ 1, %5 ]
  ret i32 %.0
}

attributes #0 = { nofree norecurse nosync nounwind memory(argmem: read) 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" }

!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"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass