; LLVM IR from ElsevierSoftwareX/SOFTX-D-20-00016 :: GameplayFootball/src/misc (hungarian)

; 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"

@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1

; 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: nounwind uwtable
define dso_local void @hungarian_print_matrix(ptr noundef %0, i32 noundef %1, i32 noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  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
  %9 = load ptr, ptr @stderr, align 8, !tbaa !5
  %10 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %9, ptr noundef @.str) #3
  store i32 0, ptr %7, align 4, !tbaa !9
  br label %11

11:                                               ; preds = %40, %3
  %12 = load i32, ptr %7, align 4, !tbaa !9
  %13 = load i32, ptr %5, align 4, !tbaa !9
  %14 = icmp slt i32 %12, %13
  br i1 %14, label %15, label %43

15:                                               ; preds = %11
  %16 = load ptr, ptr @stderr, align 8, !tbaa !5
  %17 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %16, ptr noundef @.str.1) #3
  store i32 0, ptr %8, align 4, !tbaa !9
  br label %18

18:                                               ; preds = %34, %15
  %19 = load i32, ptr %8, align 4, !tbaa !9
  %20 = load i32, ptr %6, align 4, !tbaa !9
  %21 = icmp slt i32 %19, %20
  br i1 %21, label %22, label %37

22:                                               ; preds = %18
  %23 = load ptr, ptr @stderr, align 8, !tbaa !5
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  %25 = load i32, ptr %7, align 4, !tbaa !9
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds ptr, ptr %24, i64 %26
  %28 = load ptr, ptr %27, align 8, !tbaa !5
  %29 = load i32, ptr %8, align 4, !tbaa !9
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds i32, ptr %28, i64 %30
  %32 = load i32, ptr %31, align 4, !tbaa !9
  %33 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %23, ptr noundef @.str.2, i32 noundef %32) #3
  br label %34

34:                                               ; preds = %22
  %35 = load i32, ptr %8, align 4, !tbaa !9
  %36 = add nsw i32 %35, 1
  store i32 %36, ptr %8, align 4, !tbaa !9
  br label %18, !llvm.loop !11

37:                                               ; preds = %18
  %38 = load ptr, ptr @stderr, align 8, !tbaa !5
  %39 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %38, ptr noundef @.str.3) #3
  br label %40

40:                                               ; preds = %37
  %41 = load i32, ptr %7, align 4, !tbaa !9
  %42 = add nsw i32 %41, 1
  store i32 %42, ptr %7, align 4, !tbaa !9
  br label %11, !llvm.loop !13

43:                                               ; preds = %11
  %44 = load ptr, ptr @stderr, align 8, !tbaa !5
  %45 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %44, ptr noundef @.str) #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: nounwind
declare i32 @fprintf(ptr 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 = { nounwind "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 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


; 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"

@stderr = external local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: nofree nounwind uwtable
define dso_local void @hungarian_print_matrix(ptr nocapture noundef readonly %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = load ptr, ptr @stderr, align 8, !tbaa !5
  %5 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %4, ptr noundef nonnull @.str) #2
  %6 = icmp sgt i32 %1, 0
  br i1 %6, label %.lr.ph12, label %._crit_edge13

.lr.ph12:                                         ; preds = %3
  %7 = icmp sgt i32 %2, 0
  br i1 %7, label %.lr.ph.us.preheader, label %.lr.ph12.split

.lr.ph.us.preheader:                              ; preds = %.lr.ph12
  %wide.trip.count20 = zext nneg i32 %1 to i64
  %wide.trip.count = zext nneg i32 %2 to i64
  br label %.lr.ph.us

.lr.ph.us:                                        ; preds = %.lr.ph.us.preheader, %._crit_edge.us
  %indvars.iv17 = phi i64 [ 0, %.lr.ph.us.preheader ], [ %indvars.iv.next18, %._crit_edge.us ]
  %8 = load ptr, ptr @stderr, align 8, !tbaa !5
  %9 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %8, ptr noundef nonnull @.str.1) #2
  %10 = getelementptr inbounds ptr, ptr %0, i64 %indvars.iv17
  br label %11

11:                                               ; preds = %.lr.ph.us, %11
  %indvars.iv = phi i64 [ 0, %.lr.ph.us ], [ %indvars.iv.next, %11 ]
  %12 = load ptr, ptr @stderr, align 8, !tbaa !5
  %13 = load ptr, ptr %10, align 8, !tbaa !5
  %14 = getelementptr inbounds i32, ptr %13, i64 %indvars.iv
  %15 = load i32, ptr %14, align 4, !tbaa !9
  %16 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %12, ptr noundef nonnull @.str.2, i32 noundef %15) #2
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond16.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond16.not, label %._crit_edge.us, label %11, !llvm.loop !11

._crit_edge.us:                                   ; preds = %11
  %17 = load ptr, ptr @stderr, align 8, !tbaa !5
  %18 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %17, ptr noundef nonnull @.str.3) #2
  %indvars.iv.next18 = add nuw nsw i64 %indvars.iv17, 1
  %exitcond21.not = icmp eq i64 %indvars.iv.next18, %wide.trip.count20
  br i1 %exitcond21.not, label %._crit_edge13, label %.lr.ph.us, !llvm.loop !13

.lr.ph12.split:                                   ; preds = %.lr.ph12, %.lr.ph12.split
  %.0810 = phi i32 [ %23, %.lr.ph12.split ], [ 0, %.lr.ph12 ]
  %19 = load ptr, ptr @stderr, align 8, !tbaa !5
  %20 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %19, ptr noundef nonnull @.str.1) #2
  %21 = load ptr, ptr @stderr, align 8, !tbaa !5
  %22 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %21, ptr noundef nonnull @.str.3) #2
  %23 = add nuw nsw i32 %.0810, 1
  %exitcond.not = icmp eq i32 %23, %1
  br i1 %exitcond.not, label %._crit_edge13, label %.lr.ph12.split, !llvm.loop !13

._crit_edge13:                                    ; preds = %.lr.ph12.split, %._crit_edge.us, %3
  %24 = load ptr, ptr @stderr, align 8, !tbaa !5
  %25 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %24, ptr noundef nonnull @.str) #2
  ret void
}

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #1

attributes #0 = { nofree 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 = { nofree nounwind "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 = { cold 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 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


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