; LLVM IR from specinfo-ua/UAPKI :: library/uapkif/src/asn1 (per_support)

; 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
define dso_local i32 @uper_put_nsnnwn(ptr noundef %0, i32 noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  %8 = load i32, ptr %5, align 4, !tbaa !9
  %9 = icmp sle i32 %8, 63
  br i1 %9, label %10, label %18

10:                                               ; preds = %2
  %11 = load i32, ptr %5, align 4, !tbaa !9
  %12 = icmp slt i32 %11, 0
  br i1 %12, label %13, label %14

13:                                               ; preds = %10
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %45

14:                                               ; preds = %10
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = load i32, ptr %5, align 4, !tbaa !9
  %17 = call i32 @per_put_few_bits(ptr noundef %15, i32 noundef %16, i32 noundef 7)
  store i32 %17, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %45

18:                                               ; preds = %2
  %19 = load i32, ptr %5, align 4, !tbaa !9
  %20 = icmp slt i32 %19, 256
  br i1 %20, label %21, label %22

21:                                               ; preds = %18
  store i32 1, ptr %6, align 4, !tbaa !9
  br label %33

22:                                               ; preds = %18
  %23 = load i32, ptr %5, align 4, !tbaa !9
  %24 = icmp slt i32 %23, 65536
  br i1 %24, label %25, label %26

25:                                               ; preds = %22
  store i32 2, ptr %6, align 4, !tbaa !9
  br label %32

26:                                               ; preds = %22
  %27 = load i32, ptr %5, align 4, !tbaa !9
  %28 = icmp slt i32 %27, 16777216
  br i1 %28, label %29, label %30

29:                                               ; preds = %26
  store i32 3, ptr %6, align 4, !tbaa !9
  br label %31

30:                                               ; preds = %26
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %45

31:                                               ; preds = %29
  br label %32

32:                                               ; preds = %31, %25
  br label %33

33:                                               ; preds = %32, %21
  %34 = load ptr, ptr %4, align 8, !tbaa !5
  %35 = load i32, ptr %6, align 4, !tbaa !9
  %36 = call i32 @per_put_few_bits(ptr noundef %34, i32 noundef %35, i32 noundef 8)
  %37 = icmp ne i32 %36, 0
  br i1 %37, label %38, label %39

38:                                               ; preds = %33
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %45

39:                                               ; preds = %33
  %40 = load ptr, ptr %4, align 8, !tbaa !5
  %41 = load i32, ptr %5, align 4, !tbaa !9
  %42 = load i32, ptr %6, align 4, !tbaa !9
  %43 = mul nsw i32 8, %42
  %44 = call i32 @per_put_few_bits(ptr noundef %40, i32 noundef %41, i32 noundef %43)
  store i32 %44, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %45

45:                                               ; preds = %39, %38, %30, %14, %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  %46 = load i32, ptr %3, align 4
  ret i32 %46
}

; Function Attrs: nounwind uwtable
declare dso_local i32 @per_put_few_bits(ptr noundef, i32 noundef, i32 noundef) #1

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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}


; 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
define dso_local i32 @uper_put_nsnnwn(ptr noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = icmp slt i32 %1, 64
  br i1 %3, label %4, label %6

4:                                                ; preds = %2
  %5 = icmp slt i32 %1, 0
  br i1 %5, label %17, label %.sink.split

6:                                                ; preds = %2
  %7 = icmp ult i32 %1, 256
  br i1 %7, label %12, label %8

8:                                                ; preds = %6
  %9 = icmp ult i32 %1, 65536
  br i1 %9, label %12, label %10

10:                                               ; preds = %8
  %11 = icmp ult i32 %1, 16777216
  br i1 %11, label %12, label %17

12:                                               ; preds = %10, %8, %6
  %.0 = phi i32 [ 1, %6 ], [ 2, %8 ], [ 3, %10 ]
  %13 = tail call i32 @per_put_few_bits(ptr noundef %0, i32 noundef %.0, i32 noundef 8)
  %.not = icmp eq i32 %13, 0
  br i1 %.not, label %14, label %17

14:                                               ; preds = %12
  %15 = shl nuw nsw i32 %.0, 3
  br label %.sink.split

.sink.split:                                      ; preds = %4, %14
  %.sink = phi i32 [ %15, %14 ], [ 7, %4 ]
  %16 = tail call i32 @per_put_few_bits(ptr noundef %0, i32 noundef %1, i32 noundef %.sink)
  br label %17

17:                                               ; preds = %.sink.split, %12, %10, %4
  %.012 = phi i32 [ -1, %4 ], [ -1, %10 ], [ -1, %12 ], [ %16, %.sink.split ]
  ret i32 %.012
}

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

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)"}


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