; LLVM IR from mbcse/Security_Hacking_Scripts :: Encryption_Algorithms/RSA/enc_dec_RSA.ll (Z5primel)

; 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"

@j = external dso_local global i64, align 8

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z5primel(i64 noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca i64, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store i64 %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  %6 = load i64, ptr %3, align 8, !tbaa !5
  %7 = call noundef double @_ZSt4sqrtIlEN9__gnu_cxx11__enable_ifIXsr12__is_integerIT_EE7__valueEdE6__typeES2_(i64 noundef %6)
  %8 = fptosi double %7 to i64
  store i64 %8, ptr @j, align 8, !tbaa !5
  store i32 2, ptr %4, align 4, !tbaa !9
  br label %9

9:                                                ; preds = %22, %1
  %10 = load i32, ptr %4, align 4, !tbaa !9
  %11 = sext i32 %10 to i64
  %12 = load i64, ptr @j, align 8, !tbaa !5
  %13 = icmp sle i64 %11, %12
  br i1 %13, label %14, label %25

14:                                               ; preds = %9
  %15 = load i64, ptr %3, align 8, !tbaa !5
  %16 = load i32, ptr %4, align 4, !tbaa !9
  %17 = sext i32 %16 to i64
  %18 = srem i64 %15, %17
  %19 = icmp eq i64 %18, 0
  br i1 %19, label %20, label %21

20:                                               ; preds = %14
  store i32 0, ptr %2, align 4
  store i32 1, ptr %5, align 4
  br label %26

21:                                               ; preds = %14
  br label %22

22:                                               ; preds = %21
  %23 = load i32, ptr %4, align 4, !tbaa !9
  %24 = add nsw i32 %23, 1
  store i32 %24, ptr %4, align 4, !tbaa !9
  br label %9, !llvm.loop !11

25:                                               ; preds = %9
  store i32 1, ptr %2, align 4
  store i32 1, ptr %5, align 4
  br label %26

26:                                               ; preds = %25, %20
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  %27 = load i32, ptr %2, align 4
  ret i32 %27
}

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZSt4sqrtIlEN9__gnu_cxx11__enable_ifIXsr12__is_integerIT_EE7__valueEdE6__typeES2_(i64 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 = { 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" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { inlinehint mustprogress 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 #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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !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"

@j = external dso_local local_unnamed_addr global i64, align 8

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef range(i32 0, 2) i32 @_Z5primel(i64 noundef %0) local_unnamed_addr #0 {
  %2 = tail call noundef double @_ZSt4sqrtIlEN9__gnu_cxx11__enable_ifIXsr12__is_integerIT_EE7__valueEdE6__typeES2_(i64 noundef %0)
  %3 = fptosi double %2 to i64
  store i64 %3, ptr @j, align 8, !tbaa !5
  %.not8 = icmp slt i64 %3, 2
  br i1 %.not8, label %._crit_edge, label %.lr.ph

4:                                                ; preds = %.lr.ph
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %.not.not = icmp slt i64 %indvars.iv, %3
  br i1 %.not.not, label %.lr.ph, label %._crit_edge, !llvm.loop !9

.lr.ph:                                           ; preds = %1, %4
  %indvars.iv = phi i64 [ %indvars.iv.next, %4 ], [ 2, %1 ]
  %5 = srem i64 %0, %indvars.iv
  %6 = icmp eq i64 %5, 0
  br i1 %6, label %._crit_edge, label %4

._crit_edge:                                      ; preds = %.lr.ph, %4, %1
  %.06 = phi i32 [ 1, %1 ], [ 1, %4 ], [ 0, %.lr.ph ]
  ret i32 %.06
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZSt4sqrtIlEN9__gnu_cxx11__enable_ifIXsr12__is_integerIT_EE7__valueEdE6__typeES2_(i64 noundef) local_unnamed_addr #1

attributes #0 = { mustprogress 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 = { inlinehint mustprogress 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 = !{!6, !6, i64 0}
!6 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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