; LLVM IR from AlgoGenesis/C :: Bit Manipulation/Check if the i-th bit is set or not (program)

; 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"

@.str = external hidden unnamed_addr constant [30 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [45 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [41 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [58 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [23 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [27 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local i32 @is_ith_bit_set(i32 noundef, i32 noundef) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  %5 = call i32 (ptr, ...) @printf(ptr noundef @.str)
  %6 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %2)
  %7 = icmp ne i32 %6, 1
  br i1 %7, label %8, label %10

8:                                                ; preds = %0
  %9 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  store i32 1, ptr %1, align 4
  store i32 1, ptr %4, align 4
  br label %34

10:                                               ; preds = %0
  %11 = call i32 (ptr, ...) @printf(ptr noundef @.str.3)
  %12 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.4, ptr noundef %3)
  %13 = icmp ne i32 %12, 1
  br i1 %13, label %20, label %14

14:                                               ; preds = %10
  %15 = load i32, ptr %3, align 4, !tbaa !5
  %16 = icmp slt i32 %15, 0
  br i1 %16, label %20, label %17

17:                                               ; preds = %14
  %18 = load i32, ptr %3, align 4, !tbaa !5
  %19 = icmp sgt i32 %18, 31
  br i1 %19, label %20, label %22

20:                                               ; preds = %17, %14, %10
  %21 = call i32 (ptr, ...) @printf(ptr noundef @.str.5)
  store i32 1, ptr %1, align 4
  store i32 1, ptr %4, align 4
  br label %34

22:                                               ; preds = %17
  %23 = load i32, ptr %2, align 4, !tbaa !5
  %24 = load i32, ptr %3, align 4, !tbaa !5
  %25 = call i32 @is_ith_bit_set(i32 noundef %23, i32 noundef %24)
  %26 = icmp ne i32 %25, 0
  br i1 %26, label %27, label %30

27:                                               ; preds = %22
  %28 = load i32, ptr %3, align 4, !tbaa !5
  %29 = call i32 (ptr, ...) @printf(ptr noundef @.str.6, i32 noundef %28)
  br label %33

30:                                               ; preds = %22
  %31 = load i32, ptr %3, align 4, !tbaa !5
  %32 = call i32 (ptr, ...) @printf(ptr noundef @.str.7, i32 noundef %31)
  br label %33

33:                                               ; preds = %30, %27
  store i32 0, ptr %1, align 4
  store i32 1, ptr %4, align 4
  br label %34

34:                                               ; preds = %33, %20, %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #3
  %35 = load i32, ptr %1, align 4
  ret i32 %35
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

declare i32 @printf(ptr noundef, ...) #2

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

; 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 = { "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 #3 = { 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"}


; 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"

@.str = external hidden unnamed_addr constant [30 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [45 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [41 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [58 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [23 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [27 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local i32 @is_ith_bit_set(i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 2) i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #3
  %3 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str)
  %4 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %1)
  %.not = icmp eq i32 %4, 1
  br i1 %.not, label %7, label %5

5:                                                ; preds = %0
  %6 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2)
  br label %23

7:                                                ; preds = %0
  %8 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3)
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.4, ptr noundef nonnull %2)
  %10 = icmp ne i32 %9, 1
  %11 = load i32, ptr %2, align 4
  %12 = icmp ugt i32 %11, 31
  %or.cond3 = select i1 %10, i1 true, i1 %12
  br i1 %or.cond3, label %13, label %15

13:                                               ; preds = %7
  %14 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.5)
  br label %23

15:                                               ; preds = %7
  %16 = load i32, ptr %1, align 4, !tbaa !5
  %17 = call i32 @is_ith_bit_set(i32 noundef %16, i32 noundef %11)
  %.not5 = icmp eq i32 %17, 0
  %18 = load i32, ptr %2, align 4, !tbaa !5
  br i1 %.not5, label %21, label %19

19:                                               ; preds = %15
  %20 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.6, i32 noundef %18)
  br label %23

21:                                               ; preds = %15
  %22 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7, i32 noundef %18)
  br label %23

23:                                               ; preds = %19, %21, %13, %5
  %.0 = phi i32 [ 1, %5 ], [ 1, %13 ], [ 0, %21 ], [ 0, %19 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #3
  ret i32 %.0
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: mustprogress 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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nofree nounwind "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 #3 = { 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"}


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