; LLVM IR from PacktPublishing/Demystifying-Cryptography-with-OpenSSL-3 :: Chapter11 (tls-cert-pinning)

; 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"

@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [49 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [26 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [29 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @main(i32 noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  store i32 0, ptr %3, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  store i32 0, ptr %6, align 4, !tbaa !5
  %11 = load i32, ptr %4, align 4, !tbaa !5
  %12 = icmp ne i32 %11, 4
  br i1 %12, label %13, label %19

13:                                               ; preds = %2
  %14 = load ptr, ptr @stderr, align 8, !tbaa !9
  %15 = load ptr, ptr %5, align 8, !tbaa !9
  %16 = getelementptr inbounds ptr, ptr %15, i64 0
  %17 = load ptr, ptr %16, align 8, !tbaa !9
  %18 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %14, ptr noundef @.str, ptr noundef %17) #3
  store i32 1, ptr %6, align 4, !tbaa !5
  br label %43

19:                                               ; preds = %2
  %20 = load ptr, ptr %5, align 8, !tbaa !9
  %21 = getelementptr inbounds ptr, ptr %20, i64 1
  %22 = load ptr, ptr %21, align 8, !tbaa !9
  store ptr %22, ptr %7, align 8, !tbaa !9
  %23 = load ptr, ptr %5, align 8, !tbaa !9
  %24 = getelementptr inbounds ptr, ptr %23, i64 2
  %25 = load ptr, ptr %24, align 8, !tbaa !9
  store ptr %25, ptr %8, align 8, !tbaa !9
  %26 = load ptr, ptr %5, align 8, !tbaa !9
  %27 = getelementptr inbounds ptr, ptr %26, i64 3
  %28 = load ptr, ptr %27, align 8, !tbaa !9
  store ptr %28, ptr %9, align 8, !tbaa !9
  %29 = load ptr, ptr %7, align 8, !tbaa !9
  %30 = load ptr, ptr %8, align 8, !tbaa !9
  %31 = load ptr, ptr %9, align 8, !tbaa !9
  %32 = load ptr, ptr @stderr, align 8, !tbaa !9
  %33 = call i32 @run_tls_client(ptr noundef %29, ptr noundef %30, ptr noundef %31, ptr noundef %32)
  store i32 %33, ptr %10, align 4, !tbaa !5
  %34 = load i32, ptr %10, align 4, !tbaa !5
  %35 = icmp ne i32 %34, 0
  br i1 %35, label %36, label %39

36:                                               ; preds = %19
  %37 = load ptr, ptr @stderr, align 8, !tbaa !9
  %38 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %37, ptr noundef @.str.1) #3
  br label %42

39:                                               ; preds = %19
  %40 = load ptr, ptr @stderr, align 8, !tbaa !9
  %41 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %40, ptr noundef @.str.2) #3
  br label %43

42:                                               ; preds = %36
  store i32 1, ptr %6, align 4, !tbaa !5
  br label %43

43:                                               ; preds = %42, %39, %13
  %44 = load i32, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  ret i32 %44
}

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

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #2

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

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

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" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !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"

@stderr = external local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [49 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [26 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [29 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 2) i32 @main(i32 noundef %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %.not = icmp eq i32 %0, 4
  br i1 %.not, label %7, label %3

3:                                                ; preds = %2
  %4 = load ptr, ptr @stderr, align 8, !tbaa !5
  %5 = load ptr, ptr %1, align 8, !tbaa !5
  %6 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %4, ptr noundef nonnull @.str, ptr noundef %5) #2
  br label %21

7:                                                ; preds = %2
  %8 = getelementptr inbounds i8, ptr %1, i64 8
  %9 = load ptr, ptr %8, align 8, !tbaa !5
  %10 = getelementptr inbounds i8, ptr %1, i64 16
  %11 = load ptr, ptr %10, align 8, !tbaa !5
  %12 = getelementptr inbounds i8, ptr %1, i64 24
  %13 = load ptr, ptr %12, align 8, !tbaa !5
  %14 = load ptr, ptr @stderr, align 8, !tbaa !5
  %15 = tail call i32 @run_tls_client(ptr noundef %9, ptr noundef %11, ptr noundef %13, ptr noundef %14)
  %.not9 = icmp eq i32 %15, 0
  %16 = load ptr, ptr @stderr, align 8, !tbaa !5
  br i1 %.not9, label %19, label %17

17:                                               ; preds = %7
  %18 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %16, ptr noundef nonnull @.str.1) #2
  br label %21

19:                                               ; preds = %7
  %20 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %16, ptr noundef nonnull @.str.2) #2
  br label %21

21:                                               ; preds = %17, %19, %3
  %.0 = phi i32 [ 1, %3 ], [ 1, %17 ], [ 0, %19 ]
  ret i32 %.0
}

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @run_tls_client(ptr noundef, ptr noundef, ptr noundef, ptr 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" }
attributes #1 = { 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 #2 = { cold 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"}


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