; LLVM IR from shanet/Crypto-Example :: Crypto.ll (ZN6Crypto11bioToStringEP6bio_stPPh)

; 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 allocsize(0)
declare noalias ptr @malloc(i64 noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN6Crypto11bioToStringEP6bio_stPPh(ptr noundef nonnull align 8 dereferenceable(72) %0, ptr noundef %1, ptr noundef %2) #2 align 2 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  %10 = load ptr, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %11 = load ptr, ptr %6, align 8, !tbaa !5
  %12 = call i64 @BIO_ctrl(ptr noundef %11, i32 noundef 10, i64 noundef 0, ptr noundef null)
  %13 = trunc i64 %12 to i32
  %14 = sext i32 %13 to i64
  store i64 %14, ptr %8, align 8, !tbaa !9
  %15 = load i64, ptr %8, align 8, !tbaa !9
  %16 = add i64 %15, 1
  %17 = call noalias ptr @malloc(i64 noundef %16) #5
  %18 = load ptr, ptr %7, align 8, !tbaa !5
  store ptr %17, ptr %18, align 8, !tbaa !5
  %19 = load ptr, ptr %7, align 8, !tbaa !5
  %20 = icmp eq ptr %19, null
  br i1 %20, label %21, label %22

21:                                               ; preds = %3
  store i32 -1, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %36

22:                                               ; preds = %3
  %23 = load ptr, ptr %6, align 8, !tbaa !5
  %24 = load ptr, ptr %7, align 8, !tbaa !5
  %25 = load ptr, ptr %24, align 8, !tbaa !5
  %26 = load i64, ptr %8, align 8, !tbaa !9
  %27 = trunc i64 %26 to i32
  %28 = call i32 @BIO_read(ptr noundef %23, ptr noundef %25, i32 noundef %27)
  %29 = load ptr, ptr %7, align 8, !tbaa !5
  %30 = load ptr, ptr %29, align 8, !tbaa !5
  %31 = load i64, ptr %8, align 8, !tbaa !9
  %32 = getelementptr inbounds i8, ptr %30, i64 %31
  store i8 0, ptr %32, align 1, !tbaa !11
  %33 = load ptr, ptr %6, align 8, !tbaa !5
  call void @BIO_free_all(ptr noundef %33)
  %34 = load i64, ptr %8, align 8, !tbaa !9
  %35 = trunc i64 %34 to i32
  store i32 %35, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %36

36:                                               ; preds = %22, %21
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  %37 = load i32, ptr %4, align 4
  ret i32 %37
}

declare void @BIO_free_all(ptr noundef) #3

declare i64 @BIO_ctrl(ptr noundef, i32 noundef, i64 noundef, ptr noundef) #3

declare i32 @BIO_read(ptr noundef, ptr noundef, i32 noundef) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nounwind allocsize(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 = { 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 #3 = { "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 #4 = { nounwind }
attributes #5 = { nounwind allocsize(0) }

!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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!7, !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: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN6Crypto11bioToStringEP6bio_stPPh(ptr nocapture noundef nonnull readnone align 8 dereferenceable(72) %0, ptr noundef %1, ptr nocapture noundef %2) local_unnamed_addr #1 align 2 {
  %4 = tail call i64 @BIO_ctrl(ptr noundef %1, i32 noundef 10, i64 noundef 0, ptr noundef null)
  %5 = trunc i64 %4 to i32
  %sext = shl i64 %4, 32
  %6 = ashr exact i64 %sext, 32
  %7 = add nsw i64 %6, 1
  %8 = tail call noalias ptr @malloc(i64 noundef %7) #3
  store ptr %8, ptr %2, align 8, !tbaa !5
  %9 = tail call i32 @BIO_read(ptr noundef %1, ptr noundef %8, i32 noundef %5)
  %10 = load ptr, ptr %2, align 8, !tbaa !5
  %11 = getelementptr inbounds i8, ptr %10, i64 %6
  store i8 0, ptr %11, align 1, !tbaa !9
  tail call void @BIO_free_all(ptr noundef %1)
  ret i32 %5
}

declare void @BIO_free_all(ptr noundef) local_unnamed_addr #2

declare i64 @BIO_ctrl(ptr noundef, i32 noundef, i64 noundef, ptr noundef) local_unnamed_addr #2

declare i32 @BIO_read(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #2

attributes #0 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 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 = { "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 allocsize(0) }

!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++ TBAA"}
!9 = !{!7, !7, i64 0}


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