; LLVM IR from VastoLorde95/Competitive-Programming :: Hackerrank/Random/Cube Summation/A.ll (Z6updateiiii)

; 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"

@tree = external dso_local global [101 x [101 x [101 x i64]]], align 16

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z6updateiiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3) #0 {
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store i32 %0, ptr %5, align 4, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !5
  store i32 %3, ptr %8, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #2
  br label %10

10:                                               ; preds = %38, %4
  %11 = load i32, ptr %5, align 4, !tbaa !5
  %12 = icmp slt i32 %11, 101
  br i1 %12, label %13, label %45

13:                                               ; preds = %10
  %14 = load i32, ptr %6, align 4, !tbaa !5
  store i32 %14, ptr %9, align 4, !tbaa !5
  br label %15

15:                                               ; preds = %18, %13
  %16 = load i32, ptr %9, align 4, !tbaa !5
  %17 = icmp slt i32 %16, 101
  br i1 %17, label %18, label %38

18:                                               ; preds = %15
  %19 = load i32, ptr %8, align 4, !tbaa !5
  %20 = sext i32 %19 to i64
  %21 = load i32, ptr %5, align 4, !tbaa !5
  %22 = sext i32 %21 to i64
  %23 = getelementptr inbounds [101 x [101 x [101 x i64]]], ptr @tree, i64 0, i64 %22
  %24 = load i32, ptr %9, align 4, !tbaa !5
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds [101 x [101 x i64]], ptr %23, i64 0, i64 %25
  %27 = load i32, ptr %7, align 4, !tbaa !5
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds [101 x i64], ptr %26, i64 0, i64 %28
  %30 = load i64, ptr %29, align 8, !tbaa !9
  %31 = add nsw i64 %30, %20
  store i64 %31, ptr %29, align 8, !tbaa !9
  %32 = load i32, ptr %9, align 4, !tbaa !5
  %33 = load i32, ptr %9, align 4, !tbaa !5
  %34 = sub nsw i32 0, %33
  %35 = and i32 %32, %34
  %36 = load i32, ptr %9, align 4, !tbaa !5
  %37 = add nsw i32 %36, %35
  store i32 %37, ptr %9, align 4, !tbaa !5
  br label %15, !llvm.loop !11

38:                                               ; preds = %15
  %39 = load i32, ptr %5, align 4, !tbaa !5
  %40 = load i32, ptr %5, align 4, !tbaa !5
  %41 = sub nsw i32 0, %40
  %42 = and i32 %39, %41
  %43 = load i32, ptr %5, align 4, !tbaa !5
  %44 = add nsw i32 %43, %42
  store i32 %44, ptr %5, align 4, !tbaa !5
  br label %10, !llvm.loop !13

45:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  ret void
}

; 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

attributes #0 = { mustprogress 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long long", !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"

@tree = external dso_local local_unnamed_addr global [101 x [101 x [101 x i64]]], align 16

; Function Attrs: mustprogress nofree norecurse nosync nounwind memory(readwrite, argmem: none, inaccessiblemem: none) uwtable
define dso_local void @_Z6updateiiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3) local_unnamed_addr #0 {
  %5 = icmp slt i32 %0, 101
  br i1 %5, label %.preheader.lr.ph, label %._crit_edge16

.preheader.lr.ph:                                 ; preds = %4
  %6 = icmp slt i32 %1, 101
  %7 = sext i32 %3 to i64
  %8 = sext i32 %2 to i64
  br i1 %6, label %.preheader.us, label %._crit_edge16

.preheader.us:                                    ; preds = %.preheader.lr.ph, %._crit_edge.us
  %.01315.us = phi i32 [ %21, %._crit_edge.us ], [ %0, %.preheader.lr.ph ]
  %9 = sext i32 %.01315.us to i64
  br label %10

10:                                               ; preds = %.preheader.us, %10
  %.014.us = phi i32 [ %1, %.preheader.us ], [ %17, %10 ]
  %11 = sext i32 %.014.us to i64
  %12 = getelementptr inbounds [101 x [101 x [101 x i64]]], ptr @tree, i64 0, i64 %9, i64 %11, i64 %8
  %13 = load i64, ptr %12, align 8, !tbaa !5
  %14 = add nsw i64 %13, %7
  store i64 %14, ptr %12, align 8, !tbaa !5
  %15 = sub nsw i32 0, %.014.us
  %16 = and i32 %.014.us, %15
  %17 = add nsw i32 %16, %.014.us
  %18 = icmp slt i32 %17, 101
  br i1 %18, label %10, label %._crit_edge.us, !llvm.loop !9

._crit_edge.us:                                   ; preds = %10
  %19 = sub nsw i32 0, %.01315.us
  %20 = and i32 %.01315.us, %19
  %21 = add nsw i32 %20, %.01315.us
  %22 = icmp slt i32 %21, 101
  br i1 %22, label %.preheader.us, label %._crit_edge16, !llvm.loop !11

._crit_edge16:                                    ; preds = %._crit_edge.us, %.preheader.lr.ph, %4
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind memory(readwrite, argmem: none, inaccessiblemem: none) 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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


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