; LLVM IR from JessonYue/LeetCodeLearning :: Array/zhangjunwei/8月 (containsDuplicate)

; 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"

; Function Attrs: nounwind uwtable
define dso_local i32 @find_hash(i32 noundef %0, ptr noundef %1, i32 noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %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 ptr %1, ptr %6, align 8, !tbaa !9
  store i32 %2, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  %10 = load i32, ptr %5, align 4, !tbaa !5
  %11 = load i32, ptr %7, align 4, !tbaa !5
  %12 = sdiv i32 %11, 2
  %13 = add nsw i32 %10, %12
  %14 = load i32, ptr %7, align 4, !tbaa !5
  %15 = srem i32 %13, %14
  store i32 %15, ptr %8, align 4, !tbaa !5
  %16 = load i32, ptr %8, align 4, !tbaa !5
  %17 = icmp slt i32 %16, 0
  br i1 %17, label %18, label %21

18:                                               ; preds = %3
  %19 = load i32, ptr %8, align 4, !tbaa !5
  %20 = sub nsw i32 0, %19
  store i32 %20, ptr %8, align 4, !tbaa !5
  br label %21

21:                                               ; preds = %18, %3
  br label %22

22:                                               ; preds = %46, %21
  %23 = load ptr, ptr %6, align 8, !tbaa !9
  %24 = load i32, ptr %8, align 4, !tbaa !5
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds i32, ptr %23, i64 %25
  %27 = load i32, ptr %26, align 4, !tbaa !5
  %28 = load i32, ptr %5, align 4, !tbaa !5
  %29 = icmp ne i32 %27, %28
  br i1 %29, label %30, label %37

30:                                               ; preds = %22
  %31 = load ptr, ptr %6, align 8, !tbaa !9
  %32 = load i32, ptr %8, align 4, !tbaa !5
  %33 = sext i32 %32 to i64
  %34 = getelementptr inbounds i32, ptr %31, i64 %33
  %35 = load i32, ptr %34, align 4, !tbaa !5
  %36 = icmp ne i32 %35, -234567
  br label %37

37:                                               ; preds = %30, %22
  %38 = phi i1 [ false, %22 ], [ %36, %30 ]
  br i1 %38, label %39, label %47

39:                                               ; preds = %37
  %40 = load i32, ptr %8, align 4, !tbaa !5
  %41 = add nsw i32 %40, 1
  store i32 %41, ptr %8, align 4, !tbaa !5
  %42 = load i32, ptr %8, align 4, !tbaa !5
  %43 = load i32, ptr %7, align 4, !tbaa !5
  %44 = icmp sge i32 %42, %43
  br i1 %44, label %45, label %46

45:                                               ; preds = %39
  store i32 0, ptr %8, align 4, !tbaa !5
  br label %46

46:                                               ; preds = %45, %39
  br label %22, !llvm.loop !11

47:                                               ; preds = %37
  %48 = load ptr, ptr %6, align 8, !tbaa !9
  %49 = load i32, ptr %8, align 4, !tbaa !5
  %50 = sext i32 %49 to i64
  %51 = getelementptr inbounds i32, ptr %48, i64 %50
  %52 = load i32, ptr %51, align 4, !tbaa !5
  %53 = load i32, ptr %5, align 4, !tbaa !5
  %54 = icmp eq i32 %52, %53
  br i1 %54, label %55, label %56

55:                                               ; preds = %47
  store i32 1, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %57

56:                                               ; preds = %47
  store i32 0, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %57

57:                                               ; preds = %56, %55
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  %58 = load i32, ptr %4, align 4
  ret i32 %58
}

; 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 = { 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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; 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"

; Function Attrs: nofree norecurse nosync nounwind memory(argmem: read) uwtable
define dso_local range(i32 0, 2) i32 @find_hash(i32 noundef %0, ptr nocapture noundef readonly %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = sdiv i32 %2, 2
  %5 = add nsw i32 %4, %0
  %6 = srem i32 %5, %2
  %spec.select = tail call i32 @llvm.abs.i32(i32 %6, i1 true)
  %7 = zext nneg i32 %spec.select to i64
  %8 = getelementptr inbounds i32, ptr %1, i64 %7
  %9 = load i32, ptr %8, align 4, !tbaa !5
  %.not22 = icmp eq i32 %9, %0
  %.not2023 = icmp eq i32 %9, -234567
  %or.cond24 = or i1 %.not22, %.not2023
  br i1 %or.cond24, label %.critedge, label %.lr.ph

.lr.ph:                                           ; preds = %3, %.lr.ph
  %.125 = phi i32 [ %spec.store.select, %.lr.ph ], [ %spec.select, %3 ]
  %10 = add nuw nsw i32 %.125, 1
  %.not21 = icmp slt i32 %10, %2
  %spec.store.select = select i1 %.not21, i32 %10, i32 0
  %11 = zext nneg i32 %spec.store.select to i64
  %12 = getelementptr inbounds i32, ptr %1, i64 %11
  %13 = load i32, ptr %12, align 4, !tbaa !5
  %.not = icmp eq i32 %13, %0
  %.not20 = icmp eq i32 %13, -234567
  %or.cond = or i1 %.not, %.not20
  br i1 %or.cond, label %.critedge, label %.lr.ph, !llvm.loop !9

.critedge:                                        ; preds = %.lr.ph, %3
  %.not.lcssa = phi i1 [ %.not22, %3 ], [ %.not, %.lr.ph ]
  %. = zext i1 %.not.lcssa to i32
  ret i32 %.
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.abs.i32(i32, i1 immarg) #1

attributes #0 = { nofree norecurse nosync nounwind memory(argmem: read) 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 speculatable willreturn memory(none) }

!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/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass