; LLVM IR from pranjalwalia/Competitive-programming :: spoj/RMQSQ.ll (Z10update_sumiiiii)

; 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"

@st = external dso_local global [400000 x i32], align 16

; 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: mustprogress uwtable
define dso_local void @_Z10update_sumiiiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) #1 {
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  store i32 %0, ptr %6, align 4, !tbaa !5
  store i32 %1, ptr %7, align 4, !tbaa !5
  store i32 %2, ptr %8, align 4, !tbaa !5
  store i32 %3, ptr %9, align 4, !tbaa !5
  store i32 %4, ptr %10, align 4, !tbaa !5
  %12 = load i32, ptr %7, align 4, !tbaa !5
  %13 = load i32, ptr %8, align 4, !tbaa !5
  %14 = icmp eq i32 %12, %13
  br i1 %14, label %15, label %20

15:                                               ; preds = %5
  %16 = load i32, ptr %10, align 4, !tbaa !5
  %17 = load i32, ptr %6, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [400000 x i32], ptr @st, i64 0, i64 %18
  store i32 %16, ptr %19, align 4, !tbaa !5
  br label %62

20:                                               ; preds = %5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #2
  %21 = load i32, ptr %7, align 4, !tbaa !5
  %22 = load i32, ptr %8, align 4, !tbaa !5
  %23 = add nsw i32 %21, %22
  %24 = sdiv i32 %23, 2
  store i32 %24, ptr %11, align 4, !tbaa !5
  %25 = load i32, ptr %9, align 4, !tbaa !5
  %26 = load i32, ptr %11, align 4, !tbaa !5
  %27 = icmp sle i32 %25, %26
  br i1 %27, label %28, label %36

28:                                               ; preds = %20
  %29 = load i32, ptr %6, align 4, !tbaa !5
  %30 = mul nsw i32 2, %29
  %31 = add nsw i32 %30, 1
  %32 = load i32, ptr %7, align 4, !tbaa !5
  %33 = load i32, ptr %11, align 4, !tbaa !5
  %34 = load i32, ptr %9, align 4, !tbaa !5
  %35 = load i32, ptr %10, align 4, !tbaa !5
  call void @_Z10update_sumiiiii(i32 noundef %31, i32 noundef %32, i32 noundef %33, i32 noundef %34, i32 noundef %35)
  br label %45

36:                                               ; preds = %20
  %37 = load i32, ptr %6, align 4, !tbaa !5
  %38 = mul nsw i32 2, %37
  %39 = add nsw i32 %38, 2
  %40 = load i32, ptr %11, align 4, !tbaa !5
  %41 = add nsw i32 %40, 1
  %42 = load i32, ptr %8, align 4, !tbaa !5
  %43 = load i32, ptr %9, align 4, !tbaa !5
  %44 = load i32, ptr %10, align 4, !tbaa !5
  call void @_Z10update_sumiiiii(i32 noundef %39, i32 noundef %41, i32 noundef %42, i32 noundef %43, i32 noundef %44)
  br label %45

45:                                               ; preds = %36, %28
  %46 = load i32, ptr %6, align 4, !tbaa !5
  %47 = mul nsw i32 2, %46
  %48 = add nsw i32 %47, 1
  %49 = sext i32 %48 to i64
  %50 = getelementptr inbounds [400000 x i32], ptr @st, i64 0, i64 %49
  %51 = load i32, ptr %50, align 4, !tbaa !5
  %52 = load i32, ptr %6, align 4, !tbaa !5
  %53 = mul nsw i32 2, %52
  %54 = add nsw i32 %53, 2
  %55 = sext i32 %54 to i64
  %56 = getelementptr inbounds [400000 x i32], ptr @st, i64 0, i64 %55
  %57 = load i32, ptr %56, align 4, !tbaa !5
  %58 = add nsw i32 %51, %57
  %59 = load i32, ptr %6, align 4, !tbaa !5
  %60 = sext i32 %59 to i64
  %61 = getelementptr inbounds [400000 x i32], ptr @st, i64 0, i64 %60
  store i32 %58, ptr %61, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #2
  br label %62

62:                                               ; preds = %45, %15
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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"}


; 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"

@st = external dso_local local_unnamed_addr global [400000 x i32], align 16

; Function Attrs: mustprogress nofree nosync nounwind memory(readwrite, argmem: none, inaccessiblemem: none) uwtable
define dso_local void @_Z10update_sumiiiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) local_unnamed_addr #0 {
  %6 = icmp eq i32 %1, %2
  br i1 %6, label %24, label %7

7:                                                ; preds = %5
  %8 = add nsw i32 %2, %1
  %9 = sdiv i32 %8, 2
  %.not = icmp slt i32 %9, %3
  %10 = shl nsw i32 %0, 1
  br i1 %.not, label %13, label %11

11:                                               ; preds = %7
  %12 = or disjoint i32 %10, 1
  tail call void @_Z10update_sumiiiii(i32 noundef %12, i32 noundef %1, i32 noundef %9, i32 noundef %3, i32 noundef %4)
  %.pre26 = add nsw i32 %10, 2
  br label %16

13:                                               ; preds = %7
  %14 = add nsw i32 %10, 2
  %15 = add nsw i32 %9, 1
  tail call void @_Z10update_sumiiiii(i32 noundef %14, i32 noundef %15, i32 noundef %2, i32 noundef %3, i32 noundef %4)
  %.pre = or disjoint i32 %10, 1
  br label %16

16:                                               ; preds = %13, %11
  %.pre-phi27 = phi i32 [ %14, %13 ], [ %.pre26, %11 ]
  %.pre-phi25 = phi i32 [ %.pre, %13 ], [ %12, %11 ]
  %17 = sext i32 %.pre-phi25 to i64
  %18 = getelementptr inbounds [400000 x i32], ptr @st, i64 0, i64 %17
  %19 = load i32, ptr %18, align 4, !tbaa !5
  %20 = sext i32 %.pre-phi27 to i64
  %21 = getelementptr inbounds [400000 x i32], ptr @st, i64 0, i64 %20
  %22 = load i32, ptr %21, align 4, !tbaa !5
  %23 = add nsw i32 %22, %19
  br label %24

24:                                               ; preds = %5, %16
  %.sink = phi i32 [ %23, %16 ], [ %4, %5 ]
  %25 = sext i32 %0 to i64
  %26 = getelementptr inbounds [400000 x i32], ptr @st, i64 0, i64 %25
  store i32 %.sink, ptr %26, align 4, !tbaa !5
  ret void
}

attributes #0 = { mustprogress nofree 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: BDCEPass,EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass