; LLVM IR from VastoLorde95/Competitive-Programming :: CodeChef/SHORT/COOK65/Problem E/brute.ll (Z2upiii)

; 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 { i32, i32, i32 }

@qs = external dso_local global i32, align 4
@qe = external dso_local global i32, align 4
@val = external dso_local global i32, align 4
@st = external dso_local global [400040 x %struct.node], align 16

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5mergei(i32 noundef) #0

; 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

; Function Attrs: mustprogress uwtable
define dso_local void @_Z2upiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !5
  %8 = load i32, ptr %5, align 4, !tbaa !5
  %9 = load i32, ptr @qs, align 4, !tbaa !5
  %10 = icmp slt i32 %8, %9
  br i1 %10, label %19, label %11

11:                                               ; preds = %3
  %12 = load i32, ptr @qe, align 4, !tbaa !5
  %13 = load i32, ptr %4, align 4, !tbaa !5
  %14 = icmp slt i32 %12, %13
  br i1 %14, label %19, label %15

15:                                               ; preds = %11
  %16 = load i32, ptr @qs, align 4, !tbaa !5
  %17 = load i32, ptr @qe, align 4, !tbaa !5
  %18 = icmp sgt i32 %16, %17
  br i1 %18, label %19, label %20

19:                                               ; preds = %15, %11, %3
  br label %59

20:                                               ; preds = %15
  %21 = load i32, ptr @qs, align 4, !tbaa !5
  %22 = load i32, ptr %4, align 4, !tbaa !5
  %23 = icmp sle i32 %21, %22
  br i1 %23, label %24, label %43

24:                                               ; preds = %20
  %25 = load i32, ptr %5, align 4, !tbaa !5
  %26 = load i32, ptr @qe, align 4, !tbaa !5
  %27 = icmp sle i32 %25, %26
  br i1 %27, label %28, label %43

28:                                               ; preds = %24
  %29 = load i32, ptr @val, align 4, !tbaa !5
  %30 = load i32, ptr %6, align 4, !tbaa !5
  %31 = sext i32 %30 to i64
  %32 = getelementptr inbounds [400040 x %struct.node], ptr @st, i64 0, i64 %31
  %33 = getelementptr inbounds %struct.node, ptr %32, i32 0, i32 2
  %34 = load i32, ptr %33, align 4, !tbaa !9
  %35 = add nsw i32 %34, %29
  store i32 %35, ptr %33, align 4, !tbaa !9
  %36 = load i32, ptr @val, align 4, !tbaa !5
  %37 = load i32, ptr %6, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds [400040 x %struct.node], ptr @st, i64 0, i64 %38
  %40 = getelementptr inbounds %struct.node, ptr %39, i32 0, i32 0
  %41 = load i32, ptr %40, align 4, !tbaa !11
  %42 = add nsw i32 %41, %36
  store i32 %42, ptr %40, align 4, !tbaa !11
  br label %59

43:                                               ; preds = %24, %20
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  %44 = load i32, ptr %4, align 4, !tbaa !5
  %45 = load i32, ptr %5, align 4, !tbaa !5
  %46 = add nsw i32 %44, %45
  %47 = ashr i32 %46, 1
  store i32 %47, ptr %7, align 4, !tbaa !5
  %48 = load i32, ptr %4, align 4, !tbaa !5
  %49 = load i32, ptr %7, align 4, !tbaa !5
  %50 = load i32, ptr %6, align 4, !tbaa !5
  %51 = mul nsw i32 2, %50
  call void @_Z2upiii(i32 noundef %48, i32 noundef %49, i32 noundef %51)
  %52 = load i32, ptr %7, align 4, !tbaa !5
  %53 = add nsw i32 %52, 1
  %54 = load i32, ptr %5, align 4, !tbaa !5
  %55 = load i32, ptr %6, align 4, !tbaa !5
  %56 = mul nsw i32 2, %55
  %57 = add nsw i32 %56, 1
  call void @_Z2upiii(i32 noundef %53, i32 noundef %54, i32 noundef %57)
  %58 = load i32, ptr %6, align 4, !tbaa !5
  call void @_Z5mergei(i32 noundef %58)
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  br label %59

59:                                               ; preds = %43, %28, %19
  ret void
}

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 = { 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, !6, i64 8}
!10 = !{!"_ZTS4node", !6, i64 0, !6, i64 4, !6, i64 8}
!11 = !{!10, !6, 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 { i32, i32, i32 }

@qs = external dso_local local_unnamed_addr global i32, align 4
@qe = external dso_local local_unnamed_addr global i32, align 4
@val = external dso_local local_unnamed_addr global i32, align 4
@st = external dso_local local_unnamed_addr global [400040 x %struct.node], align 16

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5mergei(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z2upiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = load i32, ptr @qs, align 4, !tbaa !5
  %5 = icmp sgt i32 %4, %1
  br i1 %5, label %common.ret20, label %6

6:                                                ; preds = %3
  %7 = load i32, ptr @qe, align 4, !tbaa !5
  %8 = icmp slt i32 %7, %0
  %9 = icmp sgt i32 %4, %7
  %or.cond = or i1 %8, %9
  br i1 %or.cond, label %common.ret20, label %10

10:                                               ; preds = %6
  %.not = icmp sgt i32 %4, %0
  %.not18 = icmp slt i32 %7, %1
  %or.cond19 = or i1 %.not, %.not18
  br i1 %or.cond19, label %20, label %11

11:                                               ; preds = %10
  %12 = load i32, ptr @val, align 4, !tbaa !5
  %13 = sext i32 %2 to i64
  %14 = getelementptr inbounds [400040 x %struct.node], ptr @st, i64 0, i64 %13
  %15 = getelementptr inbounds i8, ptr %14, i64 8
  %16 = load i32, ptr %15, align 4, !tbaa !9
  %17 = add nsw i32 %16, %12
  store i32 %17, ptr %15, align 4, !tbaa !9
  %18 = load i32, ptr %14, align 4, !tbaa !11
  %19 = add nsw i32 %18, %12
  store i32 %19, ptr %14, align 4, !tbaa !11
  br label %common.ret20

common.ret20:                                     ; preds = %3, %6, %11, %20
  ret void

20:                                               ; preds = %10
  %21 = add nsw i32 %1, %0
  %22 = ashr i32 %21, 1
  %23 = shl nsw i32 %2, 1
  tail call void @_Z2upiii(i32 noundef %0, i32 noundef %22, i32 noundef %23)
  %24 = add nsw i32 %22, 1
  %25 = or disjoint i32 %23, 1
  tail call void @_Z2upiii(i32 noundef %24, i32 noundef %1, i32 noundef %25)
  tail call void @_Z5mergei(i32 noundef %2)
  br label %common.ret20
}

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" }

!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, !6, i64 8}
!10 = !{!"_ZTS4node", !6, i64 0, !6, i64 4, !6, i64 8}
!11 = !{!10, !6, i64 0}


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