; LLVM IR from VastoLorde95/Competitive-Programming :: CodeChef/LONG/JULY15/ADDMUL/A.ll (Z4upd2iiix)

; 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.node = type { i64 }

@MOD = external dso_local global i64, align 8
@lazy1 = external dso_local global [262144 x i64], align 16
@lazy2 = external dso_local global [262144 x i64], align 16
@tree = external dso_local global [524288 x %struct.node], align 16

; Function Attrs: mustprogress uwtable
define dso_local void @_Z4upd2iiix(i32 noundef %0, i32 noundef %1, i32 noundef %2, i64 noundef %3) #0 {
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i64, align 8
  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 i64 %3, ptr %8, align 8, !tbaa !9
  %9 = load i32, ptr %5, align 4, !tbaa !5
  %10 = sext i32 %9 to i64
  %11 = getelementptr inbounds [262144 x i64], ptr @lazy1, i64 0, i64 %10
  %12 = load i64, ptr %11, align 8, !tbaa !9
  %13 = icmp sgt i64 %12, 0
  br i1 %13, label %14, label %26

14:                                               ; preds = %4
  %15 = load i32, ptr %5, align 4, !tbaa !5
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds [262144 x i64], ptr @lazy1, i64 0, i64 %16
  %18 = load i64, ptr %17, align 8, !tbaa !9
  %19 = load i64, ptr %8, align 8, !tbaa !9
  %20 = mul nsw i64 %18, %19
  %21 = load i64, ptr @MOD, align 8, !tbaa !9
  %22 = srem i64 %20, %21
  %23 = load i32, ptr %5, align 4, !tbaa !5
  %24 = sext i32 %23 to i64
  %25 = getelementptr inbounds [262144 x i64], ptr @lazy1, i64 0, i64 %24
  store i64 %22, ptr %25, align 8, !tbaa !9
  br label %26

26:                                               ; preds = %14, %4
  %27 = load i32, ptr %5, align 4, !tbaa !5
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds [262144 x i64], ptr @lazy2, i64 0, i64 %28
  %30 = load i64, ptr %29, align 8, !tbaa !9
  %31 = load i64, ptr %8, align 8, !tbaa !9
  %32 = mul nsw i64 %30, %31
  %33 = load i64, ptr @MOD, align 8, !tbaa !9
  %34 = srem i64 %32, %33
  %35 = load i32, ptr %5, align 4, !tbaa !5
  %36 = sext i32 %35 to i64
  %37 = getelementptr inbounds [262144 x i64], ptr @lazy2, i64 0, i64 %36
  store i64 %34, ptr %37, align 8, !tbaa !9
  %38 = load i32, ptr %5, align 4, !tbaa !5
  %39 = sext i32 %38 to i64
  %40 = getelementptr inbounds [524288 x %struct.node], ptr @tree, i64 0, i64 %39
  %41 = load i64, ptr %8, align 8, !tbaa !9
  call void @_ZN4node7update2Ex(ptr noundef nonnull align 8 dereferenceable(8) %40, i64 noundef %41)
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4node7update2Ex(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #1 align 2

attributes #0 = { mustprogress 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 = { 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" }

!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}


; 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.node = type { i64 }

@MOD = external dso_local local_unnamed_addr global i64, align 8
@lazy1 = external dso_local local_unnamed_addr global [262144 x i64], align 16
@lazy2 = external dso_local local_unnamed_addr global [262144 x i64], align 16
@tree = external dso_local global [524288 x %struct.node], align 16

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z4upd2iiix(i32 noundef %0, i32 noundef %1, i32 noundef %2, i64 noundef %3) local_unnamed_addr #0 {
  %5 = sext i32 %0 to i64
  %6 = getelementptr inbounds [262144 x i64], ptr @lazy1, i64 0, i64 %5
  %7 = load i64, ptr %6, align 8, !tbaa !5
  %8 = icmp sgt i64 %7, 0
  %.pre = load i64, ptr @MOD, align 8, !tbaa !5
  br i1 %8, label %9, label %12

9:                                                ; preds = %4
  %10 = mul nsw i64 %7, %3
  %11 = srem i64 %10, %.pre
  store i64 %11, ptr %6, align 8, !tbaa !5
  br label %12

12:                                               ; preds = %9, %4
  %13 = getelementptr inbounds [262144 x i64], ptr @lazy2, i64 0, i64 %5
  %14 = load i64, ptr %13, align 8, !tbaa !5
  %15 = mul nsw i64 %14, %3
  %16 = srem i64 %15, %.pre
  store i64 %16, ptr %13, align 8, !tbaa !5
  %17 = getelementptr inbounds [524288 x %struct.node], ptr @tree, i64 0, i64 %5
  tail call void @_ZN4node7update2Ex(ptr noundef nonnull align 8 dereferenceable(8) %17, i64 noundef %3)
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4node7update2Ex(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #0 align 2

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" }

!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"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass