; LLVM IR from aws/s2n-tls :: tls (s2n_auth_selection)

; 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 }

@.str = external hidden unnamed_addr constant [94 x i8], align 1
@_s2n_debug_info = external thread_local global %struct.s2n_debug_info, align 8
@s2n_errno = external thread_local global i32, align 4
@.str.1 = external hidden unnamed_addr constant [94 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @s2n_get_auth_method_for_cert_type(i32 noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  %6 = load i32, ptr %4, align 4, !tbaa !5
  switch i32 %6, label %42 [
    i32 0, label %7
    i32 2, label %7
    i32 1, label %9
    i32 3, label %11
    i32 -1, label %11
    i32 4, label %11
  ]

7:                                                ; preds = %2, %2
  %8 = load ptr, ptr %5, align 8, !tbaa !9
  store i32 0, ptr %8, align 4, !tbaa !5
  store i32 0, ptr %3, align 4
  br label %72

9:                                                ; preds = %2
  %10 = load ptr, ptr %5, align 8, !tbaa !9
  store i32 1, ptr %10, align 4, !tbaa !5
  store i32 0, ptr %3, align 4
  br label %72

11:                                               ; preds = %2, %2, %2
  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, ptr %15, align 8, !tbaa !11
  %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 !11
  %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 !11
  %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 !11
  %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 !13
  %38 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 335544370, ptr %38, align 4, !tbaa !5
  %39 = call i32 @s2n_calculate_stacktrace()
  br label %40

40:                                               ; preds = %34
  store i32 -1, ptr %3, align 4
  br label %72

41:                                               ; No predecessors!
  br label %42

42:                                               ; preds = %41, %2
  br label %43

43:                                               ; preds = %42
  br label %44

44:                                               ; preds = %43
  %45 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %46 = getelementptr inbounds %struct.s2n_debug_info, ptr %45, i32 0, i32 0
  store ptr @.str.1, ptr %46, align 8, !tbaa !11
  %47 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %48 = getelementptr inbounds %struct.s2n_debug_info, ptr %47, i32 0, i32 0
  %49 = load ptr, ptr %48, align 8, !tbaa !11
  %50 = getelementptr inbounds i8, ptr %49, i64 21
  %51 = call ptr @strrchr(ptr noundef %50, i32 noundef 47) #4
  %52 = icmp ne ptr %51, null
  br i1 %52, label %53, label %60

53:                                               ; preds = %44
  %54 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %55 = getelementptr inbounds %struct.s2n_debug_info, ptr %54, i32 0, i32 0
  %56 = load ptr, ptr %55, align 8, !tbaa !11
  %57 = getelementptr inbounds i8, ptr %56, i64 21
  %58 = call ptr @strrchr(ptr noundef %57, i32 noundef 47) #4
  %59 = getelementptr inbounds i8, ptr %58, i64 1
  br label %65

60:                                               ; preds = %44
  %61 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %62 = getelementptr inbounds %struct.s2n_debug_info, ptr %61, i32 0, i32 0
  %63 = load ptr, ptr %62, align 8, !tbaa !11
  %64 = getelementptr inbounds i8, ptr %63, i64 21
  br label %65

65:                                               ; preds = %60, %53
  %66 = phi ptr [ %59, %53 ], [ %64, %60 ]
  %67 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %68 = getelementptr inbounds %struct.s2n_debug_info, ptr %67, i32 0, i32 1
  store ptr %66, ptr %68, align 8, !tbaa !13
  %69 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 335544370, ptr %69, align 4, !tbaa !5
  %70 = call i32 @s2n_calculate_stacktrace()
  br label %71

71:                                               ; preds = %65
  store i32 -1, ptr %3, align 4
  br label %72

72:                                               ; preds = %71, %40, %9, %7
  %73 = load i32, ptr %3, align 4
  ret i32 %73
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #1

; Function Attrs: nounwind willreturn memory(read)
declare ptr @strrchr(ptr noundef, i32 noundef) #2

declare i32 @s2n_calculate_stacktrace() #3

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 speculatable willreturn memory(none) }
attributes #2 = { 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 #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 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 = !{!"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}
!11 = !{!12, !10, i64 0}
!12 = !{!"s2n_debug_info", !10, i64 0, !10, i64 8}
!13 = !{!12, !10, i64 8}


; 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 }

@.str = external hidden unnamed_addr constant [94 x i8], align 1
@_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.1 = external hidden unnamed_addr constant [94 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 1) i32 @s2n_get_auth_method_for_cert_type(i32 noundef %0, ptr nocapture noundef writeonly %1) local_unnamed_addr #0 {
  switch i32 %0, label %13 [
    i32 0, label %3
    i32 2, label %3
    i32 1, label %4
    i32 3, label %5
    i32 -1, label %5
    i32 4, label %5
  ]

3:                                                ; preds = %2, %2
  store i32 0, ptr %1, align 4, !tbaa !5
  br label %21

4:                                                ; preds = %2
  store i32 1, ptr %1, align 4, !tbaa !5
  br label %21

5:                                                ; preds = %2, %2, %2
  %6 = tail call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str, ptr %6, align 8, !tbaa !9
  %7 = tail call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str, i64 21), i32 noundef 47) #4
  %.not = icmp eq ptr %7, null
  %8 = getelementptr inbounds i8, ptr %7, i64 1
  %9 = select i1 %.not, ptr getelementptr inbounds (i8, ptr @.str, i64 21), ptr %8
  %10 = getelementptr inbounds i8, ptr %6, i64 8
  store ptr %9, ptr %10, align 8, !tbaa !12
  %11 = tail call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 335544370, ptr %11, align 4, !tbaa !5
  %12 = tail call i32 @s2n_calculate_stacktrace() #5
  br label %21

13:                                               ; preds = %2
  %14 = tail call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str.1, ptr %14, align 8, !tbaa !9
  %15 = tail call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str.1, i64 21), i32 noundef 47) #4
  %.not5 = icmp eq ptr %15, null
  %16 = getelementptr inbounds i8, ptr %15, i64 1
  %17 = select i1 %.not5, ptr getelementptr inbounds (i8, ptr @.str.1, i64 21), ptr %16
  %18 = getelementptr inbounds i8, ptr %14, i64 8
  store ptr %17, ptr %18, align 8, !tbaa !12
  %19 = tail call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 335544370, ptr %19, align 4, !tbaa !5
  %20 = tail call i32 @s2n_calculate_stacktrace() #5
  br label %21

21:                                               ; preds = %13, %5, %4, %3
  %.0 = phi i32 [ -1, %13 ], [ -1, %5 ], [ 0, %4 ], [ 0, %3 ]
  ret i32 %.0
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #1

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare ptr @strrchr(ptr noundef, i32 noundef) local_unnamed_addr #2

declare i32 @s2n_calculate_stacktrace() local_unnamed_addr #3

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 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { 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 #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 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, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"s2n_debug_info", !11, i64 0, !11, i64 8}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!10, !11, i64 8}


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