; LLVM IR from DimitrisJim/leetcode_solutions :: C/Algorithms (1365)

; 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"

@get_next_prime.PRIMES = external hidden global [16 x i32], align 16

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

4:                                                ; preds = %13, %1
  %5 = load i32, ptr %2, align 4, !tbaa !5
  %6 = load i32, ptr %3, align 4, !tbaa !5
  %7 = zext i32 %6 to i64
  %8 = getelementptr inbounds [16 x i32], ptr @get_next_prime.PRIMES, i64 0, i64 %7
  %9 = load i32, ptr %8, align 4, !tbaa !5
  %10 = icmp sle i32 %5, %9
  br i1 %10, label %11, label %12

11:                                               ; preds = %4
  br label %16

12:                                               ; preds = %4
  br label %13

13:                                               ; preds = %12
  %14 = load i32, ptr %3, align 4, !tbaa !5
  %15 = add i32 %14, 1
  store i32 %15, ptr %3, align 4, !tbaa !5
  br label %4

16:                                               ; preds = %11
  %17 = load i32, ptr %3, align 4, !tbaa !5
  %18 = zext i32 %17 to i64
  %19 = getelementptr inbounds [16 x i32], ptr @get_next_prime.PRIMES, i64 0, i64 %18
  %20 = load i32, ptr %19, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  ret i32 %20
}

; 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"}


; 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"

@get_next_prime.PRIMES = external hidden local_unnamed_addr global [16 x i32], align 16

; Function Attrs: nofree norecurse nosync nounwind memory(read, argmem: none, inaccessiblemem: none) uwtable
define dso_local i32 @get_next_prime(i32 noundef %0) local_unnamed_addr #0 {
  br label %2

2:                                                ; preds = %2, %1
  %.0 = phi i32 [ 0, %1 ], [ %6, %2 ]
  %3 = zext i32 %.0 to i64
  %4 = getelementptr inbounds [16 x i32], ptr @get_next_prime.PRIMES, i64 0, i64 %3
  %5 = load i32, ptr %4, align 4, !tbaa !5
  %.not = icmp slt i32 %5, %0
  %6 = add i32 %.0, 1
  br i1 %.not, label %2, label %7

7:                                                ; preds = %2
  ret i32 %5
}

attributes #0 = { nofree norecurse nosync nounwind 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/C++ TBAA"}


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