; LLVM IR from int32bit/leetcode :: algorithms/BitwiseANDofNumbersRange (solve)

; 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: 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: nounwind uwtable
declare dso_local i32 @test(i32 noundef, i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @main(i32 noundef %0, ptr noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store i32 0, ptr %3, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %9

9:                                                ; preds = %32, %2
  %10 = load i32, ptr %6, align 4, !tbaa !5
  %11 = icmp slt i32 %10, 200
  br i1 %11, label %13, label %12

12:                                               ; preds = %9
  store i32 2, ptr %7, align 4
  br label %35

13:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  %14 = load i32, ptr %6, align 4, !tbaa !5
  store i32 %14, ptr %8, align 4, !tbaa !5
  br label %15

15:                                               ; preds = %26, %13
  %16 = load i32, ptr %8, align 4, !tbaa !5
  %17 = icmp slt i32 %16, 200
  br i1 %17, label %19, label %18

18:                                               ; preds = %15
  store i32 5, ptr %7, align 4
  br label %29

19:                                               ; preds = %15
  %20 = load i32, ptr %6, align 4, !tbaa !5
  %21 = load i32, ptr %8, align 4, !tbaa !5
  %22 = call i32 @test(i32 noundef %20, i32 noundef %21)
  %23 = icmp ne i32 %22, 0
  br i1 %23, label %24, label %25

24:                                               ; preds = %19
  store i32 1, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %29

25:                                               ; preds = %19
  br label %26

26:                                               ; preds = %25
  %27 = load i32, ptr %8, align 4, !tbaa !5
  %28 = add nsw i32 %27, 1
  store i32 %28, ptr %8, align 4, !tbaa !5
  br label %15, !llvm.loop !11

29:                                               ; preds = %24, %18
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  %30 = load i32, ptr %7, align 4
  switch i32 %30, label %35 [
    i32 5, label %31
  ]

31:                                               ; preds = %29
  br label %32

32:                                               ; preds = %31
  %33 = load i32, ptr %6, align 4, !tbaa !5
  %34 = add nsw i32 %33, 1
  store i32 %34, ptr %6, align 4, !tbaa !5
  br label %9, !llvm.loop !13

35:                                               ; preds = %29, %12
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  %36 = load i32, ptr %7, align 4
  switch i32 %36, label %40 [
    i32 2, label %37
    i32 1, label %38
  ]

37:                                               ; preds = %35
  store i32 0, ptr %3, align 4
  br label %38

38:                                               ; preds = %37, %35
  %39 = load i32, ptr %3, align 4
  ret i32 %39

40:                                               ; preds = %35
  unreachable
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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"}
!13 = distinct !{!13, !12}


; 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: nounwind uwtable
declare dso_local i32 @test(i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 2) i32 @main(i32 noundef %0, ptr nocapture noundef readnone %1) local_unnamed_addr #0 {
  br label %.preheader

.preheader:                                       ; preds = %2, %7
  %.01119 = phi i32 [ 0, %2 ], [ %8, %7 ]
  br label %5

3:                                                ; preds = %5
  %4 = add nuw nsw i32 %.018, 1
  %exitcond = icmp eq i32 %4, 200
  br i1 %exitcond, label %7, label %5, !llvm.loop !5

5:                                                ; preds = %.preheader, %3
  %.018 = phi i32 [ %.01119, %.preheader ], [ %4, %3 ]
  %6 = tail call i32 @test(i32 noundef %.01119, i32 noundef %.018)
  %.not = icmp eq i32 %6, 0
  br i1 %.not, label %3, label %.loopexit

7:                                                ; preds = %3
  %8 = add nuw nsw i32 %.01119, 1
  %exitcond21 = icmp eq i32 %8, 200
  br i1 %exitcond21, label %.loopexit, label %.preheader, !llvm.loop !7

.loopexit:                                        ; preds = %7, %5
  %spec.select = phi i32 [ 1, %5 ], [ 0, %7 ]
  ret i32 %spec.select
}

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" }

!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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}
!7 = distinct !{!7, !6}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopInstSimplifyPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass