; LLVM IR from tleonhardt/practical_cryptography_engineering :: mbedtls (x509)

; 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.12 = external hidden unnamed_addr constant [12 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

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

; Function Attrs: nounwind
declare i32 @snprintf(ptr noundef, i64 noundef, ptr noundef, ...) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @mbedtls_x509_key_size_helper(ptr noundef %0, i64 noundef %1, ptr noundef %2) #2 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i64, align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i64 %1, ptr %6, align 8, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %12, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %13 = load i64, ptr %6, align 8, !tbaa !9
  store i64 %13, ptr %9, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  %14 = load ptr, ptr %8, align 8, !tbaa !5
  %15 = load i64, ptr %9, align 8, !tbaa !9
  %16 = load ptr, ptr %7, align 8, !tbaa !5
  %17 = call i32 (ptr, i64, ptr, ...) @snprintf(ptr noundef %14, i64 noundef %15, ptr noundef @.str.12, ptr noundef %16) #3
  store i32 %17, ptr %10, align 4, !tbaa !11
  br label %18

18:                                               ; preds = %3
  %19 = load i32, ptr %10, align 4, !tbaa !11
  %20 = icmp slt i32 %19, 0
  br i1 %20, label %26, label %21

21:                                               ; preds = %18
  %22 = load i32, ptr %10, align 4, !tbaa !11
  %23 = sext i32 %22 to i64
  %24 = load i64, ptr %9, align 8, !tbaa !9
  %25 = icmp uge i64 %23, %24
  br i1 %25, label %26, label %27

26:                                               ; preds = %21, %18
  store i32 -10624, ptr %4, align 4
  store i32 1, ptr %11, align 4
  br label %38

27:                                               ; preds = %21
  %28 = load i32, ptr %10, align 4, !tbaa !11
  %29 = sext i32 %28 to i64
  %30 = load i64, ptr %9, align 8, !tbaa !9
  %31 = sub i64 %30, %29
  store i64 %31, ptr %9, align 8, !tbaa !9
  %32 = load i32, ptr %10, align 4, !tbaa !11
  %33 = sext i32 %32 to i64
  %34 = load ptr, ptr %8, align 8, !tbaa !5
  %35 = getelementptr inbounds i8, ptr %34, i64 %33
  store ptr %35, ptr %8, align 8, !tbaa !5
  br label %36

36:                                               ; preds = %27
  br label %37

37:                                               ; preds = %36
  store i32 0, ptr %4, align 4
  store i32 1, ptr %11, align 4
  br label %38

38:                                               ; preds = %37, %26
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  %39 = load i32, ptr %4, align 4
  ret i32 %39
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nounwind "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.12 = external hidden unnamed_addr constant [12 x i8], align 1

; Function Attrs: nofree nounwind
declare noundef i32 @snprintf(ptr noalias nocapture noundef writeonly, i64 noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #0

; Function Attrs: nofree nounwind uwtable
define dso_local range(i32 -10624, 1) i32 @mbedtls_x509_key_size_helper(ptr nocapture noundef writeonly %0, i64 noundef %1, ptr noundef %2) local_unnamed_addr #1 {
  %4 = tail call i32 (ptr, i64, ptr, ...) @snprintf(ptr noundef %0, i64 noundef %1, ptr noundef nonnull @.str.12, ptr noundef %2) #2
  %5 = icmp sgt i32 %4, -1
  %6 = zext nneg i32 %4 to i64
  %.not = icmp ult i64 %6, %1
  %or.cond = select i1 %5, i1 %.not, i1 false
  %.0 = select i1 %or.cond, i32 0, i32 -10624
  ret i32 %.0
}

attributes #0 = { nofree nounwind "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 = { nofree 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)"}


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