; LLVM IR from tangjz/acm-icpc :: hdu/5468.ll (Z3queii)

; 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"

@cnt = external dso_local global i32, align 4
@p = external dso_local global [7 x i32], align 16
@f = external dso_local global [100001 x i32], align 16

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z3queii(i32 noundef %0, i32 noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  %5 = load i32, ptr %3, align 4, !tbaa !5
  %6 = load i32, ptr @cnt, align 4, !tbaa !5
  %7 = icmp eq i32 %5, %6
  br i1 %7, label %8, label %13

8:                                                ; preds = %2
  %9 = load i32, ptr %4, align 4, !tbaa !5
  %10 = sext i32 %9 to i64
  %11 = getelementptr inbounds [100001 x i32], ptr @f, i64 0, i64 %10
  %12 = load i32, ptr %11, align 4, !tbaa !5
  br label %28

13:                                               ; preds = %2
  %14 = load i32, ptr %3, align 4, !tbaa !5
  %15 = add nsw i32 %14, 1
  %16 = load i32, ptr %4, align 4, !tbaa !5
  %17 = call noundef i32 @_Z3queii(i32 noundef %15, i32 noundef %16)
  %18 = load i32, ptr %3, align 4, !tbaa !5
  %19 = add nsw i32 %18, 1
  %20 = load i32, ptr %4, align 4, !tbaa !5
  %21 = load i32, ptr %3, align 4, !tbaa !5
  %22 = sext i32 %21 to i64
  %23 = getelementptr inbounds [7 x i32], ptr @p, i64 0, i64 %22
  %24 = load i32, ptr %23, align 4, !tbaa !5
  %25 = mul nsw i32 %20, %24
  %26 = call noundef i32 @_Z3queii(i32 noundef %19, i32 noundef %25)
  %27 = sub nsw i32 %17, %26
  br label %28

28:                                               ; preds = %13, %8
  %29 = phi i32 [ %12, %8 ], [ %27, %13 ]
  ret i32 %29
}

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"}


; 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"

@cnt = external dso_local local_unnamed_addr global i32, align 4
@p = external dso_local local_unnamed_addr global [7 x i32], align 16
@f = external dso_local local_unnamed_addr global [100001 x i32], align 16

; Function Attrs: mustprogress nofree nosync nounwind willreturn memory(read, argmem: none, inaccessiblemem: none) uwtable
define dso_local noundef i32 @_Z3queii(i32 noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = load i32, ptr @cnt, align 4, !tbaa !5
  %4 = icmp eq i32 %3, %0
  br i1 %4, label %common.ret, label %8

common.ret:                                       ; preds = %2
  %5 = sext i32 %1 to i64
  %6 = getelementptr inbounds [100001 x i32], ptr @f, i64 0, i64 %5
  %7 = load i32, ptr %6, align 4, !tbaa !5
  br label %common.ret7

common.ret7:                                      ; preds = %8, %common.ret
  %common.ret7.op = phi i32 [ %7, %common.ret ], [ %16, %8 ]
  ret i32 %common.ret7.op

8:                                                ; preds = %2
  %9 = add nsw i32 %0, 1
  %10 = tail call noundef i32 @_Z3queii(i32 noundef %9, i32 noundef %1)
  %11 = sext i32 %0 to i64
  %12 = getelementptr inbounds [7 x i32], ptr @p, i64 0, i64 %11
  %13 = load i32, ptr %12, align 4, !tbaa !5
  %14 = mul nsw i32 %13, %1
  %15 = tail call noundef i32 @_Z3queii(i32 noundef %9, i32 noundef %14)
  %16 = sub nsw i32 %10, %15
  br label %common.ret7
}

attributes #0 = { mustprogress nofree nosync nounwind willreturn memory(read, 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: EarlyCSEPass,GlobalOptPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass