; LLVM IR from aws/s2n-tls :: crypto (s2n_certificate)

; 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"

%struct.s2n_debug_info = type { ptr, ptr }

@_s2n_debug_info = external thread_local global %struct.s2n_debug_info, align 8
@s2n_errno = external thread_local global i32, align 4
@.str.24 = external hidden unnamed_addr constant [95 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #0

; Function Attrs: nounwind willreturn memory(read)
declare ptr @strrchr(ptr noundef, i32 noundef) #1

declare i32 @s2n_calculate_stacktrace() #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @s2n_cert_chain_and_key_set_cert_chain(ptr noundef, ptr noundef) #3

; Function Attrs: nounwind uwtable
declare dso_local i32 @s2n_cert_chain_and_key_set_private_key(ptr noundef, ptr noundef) #3

; Function Attrs: nounwind uwtable
declare dso_local i32 @s2n_cert_chain_and_key_load(ptr noundef) #3

; Function Attrs: nounwind uwtable
define dso_local i32 @s2n_cert_chain_and_key_load_pem(ptr noundef %0, ptr noundef %1, ptr noundef %2) #3 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  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
  br label %8

8:                                                ; preds = %3
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = icmp ne ptr %9, null
  br i1 %10, label %42, label %11

11:                                               ; preds = %8
  br label %12

12:                                               ; preds = %11
  br label %13

13:                                               ; preds = %12
  %14 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %15 = getelementptr inbounds %struct.s2n_debug_info, ptr %14, i32 0, i32 0
  store ptr @.str.24, ptr %15, align 8, !tbaa !9
  %16 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %17 = getelementptr inbounds %struct.s2n_debug_info, ptr %16, i32 0, i32 0
  %18 = load ptr, ptr %17, align 8, !tbaa !9
  %19 = getelementptr inbounds i8, ptr %18, i64 21
  %20 = call ptr @strrchr(ptr noundef %19, i32 noundef 47) #4
  %21 = icmp ne ptr %20, null
  br i1 %21, label %22, label %29

22:                                               ; preds = %13
  %23 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %24 = getelementptr inbounds %struct.s2n_debug_info, ptr %23, i32 0, i32 0
  %25 = load ptr, ptr %24, align 8, !tbaa !9
  %26 = getelementptr inbounds i8, ptr %25, i64 21
  %27 = call ptr @strrchr(ptr noundef %26, i32 noundef 47) #4
  %28 = getelementptr inbounds i8, ptr %27, i64 1
  br label %34

29:                                               ; preds = %13
  %30 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %31 = getelementptr inbounds %struct.s2n_debug_info, ptr %30, i32 0, i32 0
  %32 = load ptr, ptr %31, align 8, !tbaa !9
  %33 = getelementptr inbounds i8, ptr %32, i64 21
  br label %34

34:                                               ; preds = %29, %22
  %35 = phi ptr [ %28, %22 ], [ %33, %29 ]
  %36 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %37 = getelementptr inbounds %struct.s2n_debug_info, ptr %36, i32 0, i32 1
  store ptr %35, ptr %37, align 8, !tbaa !11
  %38 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %38, align 4, !tbaa !12
  %39 = call i32 @s2n_calculate_stacktrace()
  br label %40

40:                                               ; preds = %34
  store i32 -1, ptr %4, align 4
  br label %67

41:                                               ; No predecessors!
  br label %42

42:                                               ; preds = %41, %8
  br label %43

43:                                               ; preds = %42
  br label %44

44:                                               ; preds = %43
  %45 = load ptr, ptr %5, align 8, !tbaa !5
  %46 = load ptr, ptr %6, align 8, !tbaa !5
  %47 = call i32 @s2n_cert_chain_and_key_set_cert_chain(ptr noundef %45, ptr noundef %46)
  %48 = icmp sgt i32 %47, -1
  br i1 %48, label %50, label %49

49:                                               ; preds = %44
  store i32 -1, ptr %4, align 4
  br label %67

50:                                               ; preds = %44
  br label %51

51:                                               ; preds = %50
  br label %52

52:                                               ; preds = %51
  %53 = load ptr, ptr %5, align 8, !tbaa !5
  %54 = load ptr, ptr %7, align 8, !tbaa !5
  %55 = call i32 @s2n_cert_chain_and_key_set_private_key(ptr noundef %53, ptr noundef %54)
  %56 = icmp sgt i32 %55, -1
  br i1 %56, label %58, label %57

57:                                               ; preds = %52
  store i32 -1, ptr %4, align 4
  br label %67

58:                                               ; preds = %52
  br label %59

59:                                               ; preds = %58
  br label %60

60:                                               ; preds = %59
  %61 = load ptr, ptr %5, align 8, !tbaa !5
  %62 = call i32 @s2n_cert_chain_and_key_load(ptr noundef %61)
  %63 = icmp sgt i32 %62, -1
  br i1 %63, label %65, label %64

64:                                               ; preds = %60
  store i32 -1, ptr %4, align 4
  br label %67

65:                                               ; preds = %60
  br label %66

66:                                               ; preds = %65
  store i32 0, ptr %4, align 4
  br label %67

67:                                               ; preds = %66, %64, %57, %49, %40
  %68 = load i32, ptr %4, align 4
  ret i32 %68
}

attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #1 = { nounwind willreturn memory(read) "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 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 #4 = { nounwind willreturn memory(read) }

!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, !6, i64 0}
!10 = !{!"s2n_debug_info", !6, i64 0, !6, i64 8}
!11 = !{!10, !6, i64 8}
!12 = !{!13, !13, i64 0}
!13 = !{!"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"

%struct.s2n_debug_info = type { ptr, ptr }

@_s2n_debug_info = external thread_local local_unnamed_addr global %struct.s2n_debug_info, align 8
@s2n_errno = external thread_local local_unnamed_addr global i32, align 4
@.str.24 = external hidden unnamed_addr constant [95 x i8], align 1

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #0

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare ptr @strrchr(ptr noundef, i32 noundef) local_unnamed_addr #1

declare i32 @s2n_calculate_stacktrace() local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @s2n_cert_chain_and_key_set_cert_chain(ptr noundef, ptr noundef) local_unnamed_addr #3

; Function Attrs: nounwind uwtable
declare dso_local i32 @s2n_cert_chain_and_key_set_private_key(ptr noundef, ptr noundef) local_unnamed_addr #3

; Function Attrs: nounwind uwtable
declare dso_local i32 @s2n_cert_chain_and_key_load(ptr noundef) local_unnamed_addr #3

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 1) i32 @s2n_cert_chain_and_key_load_pem(ptr noundef %0, ptr noundef %1, ptr noundef %2) local_unnamed_addr #3 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %4, label %12

4:                                                ; preds = %3
  %5 = tail call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str.24, ptr %5, align 8, !tbaa !5
  %6 = tail call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str.24, i64 21), i32 noundef 47) #4
  %.not8 = icmp eq ptr %6, null
  %7 = getelementptr inbounds i8, ptr %6, i64 1
  %8 = select i1 %.not8, ptr getelementptr inbounds (i8, ptr @.str.24, i64 21), ptr %7
  %9 = getelementptr inbounds i8, ptr %5, i64 8
  store ptr %8, ptr %9, align 8, !tbaa !10
  %10 = tail call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %10, align 4, !tbaa !11
  %11 = tail call i32 @s2n_calculate_stacktrace() #5
  br label %20

12:                                               ; preds = %3
  %13 = tail call i32 @s2n_cert_chain_and_key_set_cert_chain(ptr noundef nonnull %0, ptr noundef %1)
  %14 = icmp sgt i32 %13, -1
  br i1 %14, label %15, label %20

15:                                               ; preds = %12
  %16 = tail call i32 @s2n_cert_chain_and_key_set_private_key(ptr noundef nonnull %0, ptr noundef %2)
  %17 = icmp sgt i32 %16, -1
  br i1 %17, label %18, label %20

18:                                               ; preds = %15
  %19 = tail call i32 @s2n_cert_chain_and_key_load(ptr noundef nonnull %0)
  %.lobit = ashr i32 %19, 31
  br label %20

20:                                               ; preds = %18, %15, %12, %4
  %.0 = phi i32 [ -1, %4 ], [ -1, %12 ], [ -1, %15 ], [ %.lobit, %18 ]
  ret i32 %.0
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #1 = { mustprogress nofree nounwind willreturn memory(argmem: read) "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 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 #4 = { nounwind willreturn memory(read) }
attributes #5 = { 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, !7, i64 0}
!6 = !{!"s2n_debug_info", !7, i64 0, !7, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!6, !7, i64 8}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !8, i64 0}


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