; LLVM IR from aws/s2n-tls :: tls (s2n_key_update)

; 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 }
%struct.s2n_stuffer = type { %struct.s2n_blob, i32, i32, i32, i8 }
%struct.s2n_blob = type { ptr, i32, i32, i8 }

@_s2n_debug_info = external thread_local global %struct.s2n_debug_info, align 8
@s2n_errno = external thread_local global i32, align 4
@key_update_request_val = external hidden global i32, align 4
@.str.11 = external hidden unnamed_addr constant [91 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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #4

; Function Attrs: nounwind uwtable
define dso_local i32 @s2n_key_update_write(ptr noundef %0) #5 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  %4 = alloca %struct.s2n_stuffer, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  br label %6

6:                                                ; preds = %1
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = icmp ne ptr %7, null
  br i1 %8, label %40, label %9

9:                                                ; preds = %6
  br label %10

10:                                               ; preds = %9
  br label %11

11:                                               ; preds = %10
  %12 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %13 = getelementptr inbounds %struct.s2n_debug_info, ptr %12, i32 0, i32 0
  store ptr @.str.11, ptr %13, align 8, !tbaa !9
  %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
  %16 = load ptr, ptr %15, align 8, !tbaa !9
  %17 = getelementptr inbounds i8, ptr %16, i64 21
  %18 = call ptr @strrchr(ptr noundef %17, i32 noundef 47) #6
  %19 = icmp ne ptr %18, null
  br i1 %19, label %20, label %27

20:                                               ; preds = %11
  %21 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %22 = getelementptr inbounds %struct.s2n_debug_info, ptr %21, i32 0, i32 0
  %23 = load ptr, ptr %22, align 8, !tbaa !9
  %24 = getelementptr inbounds i8, ptr %23, i64 21
  %25 = call ptr @strrchr(ptr noundef %24, i32 noundef 47) #6
  %26 = getelementptr inbounds i8, ptr %25, i64 1
  br label %32

27:                                               ; preds = %11
  %28 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %29 = getelementptr inbounds %struct.s2n_debug_info, ptr %28, i32 0, i32 0
  %30 = load ptr, ptr %29, align 8, !tbaa !9
  %31 = getelementptr inbounds i8, ptr %30, i64 21
  br label %32

32:                                               ; preds = %27, %20
  %33 = phi ptr [ %26, %20 ], [ %31, %27 ]
  %34 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %35 = getelementptr inbounds %struct.s2n_debug_info, ptr %34, i32 0, i32 1
  store ptr %33, ptr %35, align 8, !tbaa !11
  %36 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %36, align 4, !tbaa !12
  %37 = call i32 @s2n_calculate_stacktrace()
  br label %38

38:                                               ; preds = %32
  store i32 -1, ptr %2, align 4
  br label %74

39:                                               ; No predecessors!
  br label %40

40:                                               ; preds = %39, %6
  br label %41

41:                                               ; preds = %40
  call void @llvm.lifetime.start.p0(i64 40, ptr %4) #7
  call void @llvm.memset.p0.i64(ptr align 8 %4, i8 0, i64 40, i1 false)
  br label %42

42:                                               ; preds = %41
  %43 = load ptr, ptr %3, align 8, !tbaa !5
  %44 = call i32 @s2n_stuffer_init(ptr noundef %4, ptr noundef %43)
  %45 = icmp sgt i32 %44, -1
  br i1 %45, label %47, label %46

46:                                               ; preds = %42
  store i32 -1, ptr %2, align 4
  store i32 1, ptr %5, align 4
  br label %73

47:                                               ; preds = %42
  br label %48

48:                                               ; preds = %47
  br label %49

49:                                               ; preds = %48
  br label %50

50:                                               ; preds = %49
  %51 = call i32 @s2n_stuffer_write_uint8(ptr noundef %4, i8 noundef zeroext 24)
  %52 = icmp sgt i32 %51, -1
  br i1 %52, label %54, label %53

53:                                               ; preds = %50
  store i32 -1, ptr %2, align 4
  store i32 1, ptr %5, align 4
  br label %73

54:                                               ; preds = %50
  br label %55

55:                                               ; preds = %54
  br label %56

56:                                               ; preds = %55
  br label %57

57:                                               ; preds = %56
  %58 = call i32 @s2n_stuffer_write_uint24(ptr noundef %4, i32 noundef 1)
  %59 = icmp sgt i32 %58, -1
  br i1 %59, label %61, label %60

60:                                               ; preds = %57
  store i32 -1, ptr %2, align 4
  store i32 1, ptr %5, align 4
  br label %73

61:                                               ; preds = %57
  br label %62

62:                                               ; preds = %61
  br label %63

63:                                               ; preds = %62
  br label %64

64:                                               ; preds = %63
  %65 = load i32, ptr @key_update_request_val, align 4, !tbaa !12
  %66 = trunc i32 %65 to i8
  %67 = call i32 @s2n_stuffer_write_uint8(ptr noundef %4, i8 noundef zeroext %66)
  %68 = icmp sgt i32 %67, -1
  br i1 %68, label %70, label %69

69:                                               ; preds = %64
  store i32 -1, ptr %2, align 4
  store i32 1, ptr %5, align 4
  br label %73

70:                                               ; preds = %64
  br label %71

71:                                               ; preds = %70
  br label %72

72:                                               ; preds = %71
  store i32 0, ptr %2, align 4
  store i32 1, ptr %5, align 4
  br label %73

73:                                               ; preds = %72, %69, %60, %53, %46
  call void @llvm.lifetime.end.p0(i64 40, ptr %4) #7
  br label %74

74:                                               ; preds = %73, %38
  %75 = load i32, ptr %2, align 4
  ret i32 %75
}

declare i32 @s2n_stuffer_init(ptr noundef, ptr noundef) #2

declare i32 @s2n_stuffer_write_uint8(ptr noundef, i8 noundef zeroext) #2

declare i32 @s2n_stuffer_write_uint24(ptr noundef, i32 noundef) #2

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #5 = { 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 #6 = { nounwind willreturn memory(read) }
attributes #7 = { 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, !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 }
%struct.s2n_stuffer = type { %struct.s2n_blob, i32, i32, i32, i8 }
%struct.s2n_blob = type { ptr, i32, i32, i8 }

@_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
@key_update_request_val = external hidden local_unnamed_addr global i32, align 4
@.str.11 = external hidden unnamed_addr constant [91 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: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #4

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 1) i32 @s2n_key_update_write(ptr noundef %0) local_unnamed_addr #5 {
  %2 = alloca %struct.s2n_stuffer, align 8
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %3, label %11

3:                                                ; preds = %1
  %4 = tail call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str.11, ptr %4, align 8, !tbaa !5
  %5 = tail call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str.11, i64 21), i32 noundef 47) #6
  %.not4 = icmp eq ptr %5, null
  %6 = getelementptr inbounds i8, ptr %5, i64 1
  %7 = select i1 %.not4, ptr getelementptr inbounds (i8, ptr @.str.11, i64 21), ptr %6
  %8 = getelementptr inbounds i8, ptr %4, i64 8
  store ptr %7, ptr %8, align 8, !tbaa !10
  %9 = tail call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %9, align 4, !tbaa !11
  %10 = tail call i32 @s2n_calculate_stacktrace() #7
  br label %25

11:                                               ; preds = %1
  call void @llvm.lifetime.start.p0(i64 40, ptr nonnull %2) #7
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(40) %2, i8 0, i64 40, i1 false)
  %12 = call i32 @s2n_stuffer_init(ptr noundef nonnull %2, ptr noundef nonnull %0) #7
  %13 = icmp sgt i32 %12, -1
  br i1 %13, label %14, label %24

14:                                               ; preds = %11
  %15 = call i32 @s2n_stuffer_write_uint8(ptr noundef nonnull %2, i8 noundef zeroext 24) #7
  %16 = icmp sgt i32 %15, -1
  br i1 %16, label %17, label %24

17:                                               ; preds = %14
  %18 = call i32 @s2n_stuffer_write_uint24(ptr noundef nonnull %2, i32 noundef 1) #7
  %19 = icmp sgt i32 %18, -1
  br i1 %19, label %20, label %24

20:                                               ; preds = %17
  %21 = load i32, ptr @key_update_request_val, align 4, !tbaa !11
  %22 = trunc i32 %21 to i8
  %23 = call i32 @s2n_stuffer_write_uint8(ptr noundef nonnull %2, i8 noundef zeroext %22) #7
  %.lobit = ashr i32 %23, 31
  br label %24

24:                                               ; preds = %20, %17, %14, %11
  %.0 = phi i32 [ -1, %11 ], [ -1, %14 ], [ -1, %17 ], [ %.lobit, %20 ]
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %2) #7
  br label %25

25:                                               ; preds = %24, %3
  %.1 = phi i32 [ %.0, %24 ], [ -1, %3 ]
  ret i32 %.1
}

declare i32 @s2n_stuffer_init(ptr noundef, ptr noundef) local_unnamed_addr #2

declare i32 @s2n_stuffer_write_uint8(ptr noundef, i8 noundef zeroext) local_unnamed_addr #2

declare i32 @s2n_stuffer_write_uint24(ptr noundef, i32 noundef) local_unnamed_addr #2

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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #5 = { 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 #6 = { nounwind willreturn memory(read) }
attributes #7 = { 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