; LLVM IR from tleonhardt/practical_cryptography_engineering :: mbedtls (pkwrite)

; 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.2 = external hidden unnamed_addr constant [33 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [31 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [32 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [30 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare i32 @mbedtls_pk_get_type(ptr noundef) #1

; 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
declare dso_local i32 @mbedtls_pk_write_key_der(ptr noundef, ptr noundef, i64 noundef) #2

declare i32 @mbedtls_pem_write_buffer(ptr noundef, ptr noundef, ptr noundef, i64 noundef, ptr noundef, i64 noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @mbedtls_pk_write_key_pem(ptr noundef %0, ptr noundef %1, i64 noundef %2) #2 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i32, align 4
  %9 = alloca [5679 x i8], align 16
  %10 = alloca ptr, align 8
  %11 = alloca ptr, align 8
  %12 = alloca i64, align 8
  %13 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i64 %2, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.start.p0(i64 5679, ptr %9) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #3
  store i64 0, ptr %12, align 8, !tbaa !9
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = getelementptr inbounds [5679 x i8], ptr %9, i64 0, i64 0
  %16 = call i32 @mbedtls_pk_write_key_der(ptr noundef %14, ptr noundef %15, i64 noundef 5679)
  store i32 %16, ptr %8, align 4, !tbaa !11
  %17 = icmp slt i32 %16, 0
  br i1 %17, label %18, label %20

18:                                               ; preds = %3
  %19 = load i32, ptr %8, align 4, !tbaa !11
  store i32 %19, ptr %4, align 4
  store i32 1, ptr %13, align 4
  br label %50

20:                                               ; preds = %3
  %21 = load ptr, ptr %5, align 8, !tbaa !5
  %22 = call i32 @mbedtls_pk_get_type(ptr noundef %21)
  %23 = icmp eq i32 %22, 1
  br i1 %23, label %24, label %25

24:                                               ; preds = %20
  store ptr @.str.2, ptr %10, align 8, !tbaa !5
  store ptr @.str.3, ptr %11, align 8, !tbaa !5
  br label %32

25:                                               ; preds = %20
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = call i32 @mbedtls_pk_get_type(ptr noundef %26)
  %28 = icmp eq i32 %27, 2
  br i1 %28, label %29, label %30

29:                                               ; preds = %25
  store ptr @.str.4, ptr %10, align 8, !tbaa !5
  store ptr @.str.5, ptr %11, align 8, !tbaa !5
  br label %31

30:                                               ; preds = %25
  store i32 -14720, ptr %4, align 4
  store i32 1, ptr %13, align 4
  br label %50

31:                                               ; preds = %29
  br label %32

32:                                               ; preds = %31, %24
  %33 = load ptr, ptr %10, align 8, !tbaa !5
  %34 = load ptr, ptr %11, align 8, !tbaa !5
  %35 = getelementptr inbounds [5679 x i8], ptr %9, i64 0, i64 0
  %36 = getelementptr inbounds i8, ptr %35, i64 5679
  %37 = load i32, ptr %8, align 4, !tbaa !11
  %38 = sext i32 %37 to i64
  %39 = sub i64 0, %38
  %40 = getelementptr inbounds i8, ptr %36, i64 %39
  %41 = load i32, ptr %8, align 4, !tbaa !11
  %42 = sext i32 %41 to i64
  %43 = load ptr, ptr %6, align 8, !tbaa !5
  %44 = load i64, ptr %7, align 8, !tbaa !9
  %45 = call i32 @mbedtls_pem_write_buffer(ptr noundef %33, ptr noundef %34, ptr noundef %40, i64 noundef %42, ptr noundef %43, i64 noundef %44, ptr noundef %12)
  store i32 %45, ptr %8, align 4, !tbaa !11
  %46 = icmp ne i32 %45, 0
  br i1 %46, label %47, label %49

47:                                               ; preds = %32
  %48 = load i32, ptr %8, align 4, !tbaa !11
  store i32 %48, ptr %4, align 4
  store i32 1, ptr %13, align 4
  br label %50

49:                                               ; preds = %32
  store i32 0, ptr %4, align 4
  store i32 1, ptr %13, align 4
  br label %50

50:                                               ; preds = %49, %47, %30, %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 5679, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  %51 = load i32, ptr %4, align 4
  ret i32 %51
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"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"

@.str.2 = external hidden unnamed_addr constant [33 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [31 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [32 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [30 x i8], align 1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare i32 @mbedtls_pk_get_type(ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @mbedtls_pk_write_key_der(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #2

declare i32 @mbedtls_pem_write_buffer(ptr noundef, ptr noundef, ptr noundef, i64 noundef, ptr noundef, i64 noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local i32 @mbedtls_pk_write_key_pem(ptr noundef %0, ptr noundef %1, i64 noundef %2) local_unnamed_addr #2 {
  %4 = alloca [5679 x i8], align 16
  %5 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 5679, ptr nonnull %4) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #3
  store i64 0, ptr %5, align 8, !tbaa !5
  %6 = call i32 @mbedtls_pk_write_key_der(ptr noundef %0, ptr noundef nonnull %4, i64 noundef 5679)
  %7 = icmp slt i32 %6, 0
  br i1 %7, label %20, label %8

8:                                                ; preds = %3
  %9 = call i32 @mbedtls_pk_get_type(ptr noundef %0) #3
  %10 = icmp eq i32 %9, 1
  br i1 %10, label %14, label %11

11:                                               ; preds = %8
  %12 = call i32 @mbedtls_pk_get_type(ptr noundef %0) #3
  %13 = icmp eq i32 %12, 2
  br i1 %13, label %14, label %20

14:                                               ; preds = %11, %8
  %.011 = phi ptr [ @.str.2, %8 ], [ @.str.4, %11 ]
  %.0 = phi ptr [ @.str.3, %8 ], [ @.str.5, %11 ]
  %15 = getelementptr inbounds i8, ptr %4, i64 5679
  %16 = zext nneg i32 %6 to i64
  %17 = sub nsw i64 0, %16
  %18 = getelementptr inbounds i8, ptr %15, i64 %17
  %19 = call i32 @mbedtls_pem_write_buffer(ptr noundef nonnull %.011, ptr noundef nonnull %.0, ptr noundef nonnull %18, i64 noundef %16, ptr noundef %1, i64 noundef %2, ptr noundef nonnull %5) #3
  br label %20

20:                                               ; preds = %14, %11, %3
  %.012 = phi i32 [ %6, %3 ], [ -14720, %11 ], [ %19, %14 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #3
  call void @llvm.lifetime.end.p0(i64 5679, ptr nonnull %4) #3
  ret i32 %.012
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 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/C++ TBAA"}


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