; LLVM IR from aws/s2n-tls :: tls/extensions (s2n_extension_list)

; 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_extension_type = type { i16, i8, i16, ptr, ptr, ptr, ptr }
%struct.s2n_parsed_extensions_list = type { [21 x %struct.s2n_parsed_extension], %struct.s2n_blob, i16 }
%struct.s2n_parsed_extension = type { %struct.s2n_blob, i16, i16, i8 }
%struct.s2n_blob = type { ptr, i32, i32, i8 }

@.str = external hidden unnamed_addr constant [105 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 [105 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 uwtable
define dso_local i32 @s2n_extension_process(ptr noundef %0, ptr noundef %1, ptr noundef %2) #1 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i8, align 1
  %9 = alloca i32, align 4
  %10 = 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 %11

11:                                               ; preds = %3
  %12 = load ptr, ptr %7, align 8, !tbaa !5
  %13 = icmp ne ptr %12, null
  br i1 %13, label %45, label %14

14:                                               ; preds = %11
  br label %15

15:                                               ; preds = %14
  br label %16

16:                                               ; preds = %15
  %17 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %18 = getelementptr inbounds %struct.s2n_debug_info, ptr %17, i32 0, i32 0
  store ptr @.str, ptr %18, align 8, !tbaa !9
  %19 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %20 = getelementptr inbounds %struct.s2n_debug_info, ptr %19, i32 0, i32 0
  %21 = load ptr, ptr %20, align 8, !tbaa !9
  %22 = getelementptr inbounds i8, ptr %21, i64 21
  %23 = call ptr @strrchr(ptr noundef %22, i32 noundef 47) #5
  %24 = icmp ne ptr %23, null
  br i1 %24, label %25, label %32

25:                                               ; preds = %16
  %26 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %27 = getelementptr inbounds %struct.s2n_debug_info, ptr %26, i32 0, i32 0
  %28 = load ptr, ptr %27, align 8, !tbaa !9
  %29 = getelementptr inbounds i8, ptr %28, i64 21
  %30 = call ptr @strrchr(ptr noundef %29, i32 noundef 47) #5
  %31 = getelementptr inbounds i8, ptr %30, i64 1
  br label %37

32:                                               ; preds = %16
  %33 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %34 = getelementptr inbounds %struct.s2n_debug_info, ptr %33, i32 0, i32 0
  %35 = load ptr, ptr %34, align 8, !tbaa !9
  %36 = getelementptr inbounds i8, ptr %35, i64 21
  br label %37

37:                                               ; preds = %32, %25
  %38 = phi ptr [ %31, %25 ], [ %36, %32 ]
  %39 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %40 = getelementptr inbounds %struct.s2n_debug_info, ptr %39, i32 0, i32 1
  store ptr %38, ptr %40, align 8, !tbaa !11
  %41 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %41, align 4, !tbaa !12
  %42 = call i32 @s2n_calculate_stacktrace()
  br label %43

43:                                               ; preds = %37
  store i32 -1, ptr %4, align 4
  br label %115

44:                                               ; No predecessors!
  br label %45

45:                                               ; preds = %44, %11
  br label %46

46:                                               ; preds = %45
  br label %47

47:                                               ; preds = %46
  %48 = load ptr, ptr %5, align 8, !tbaa !5
  %49 = icmp ne ptr %48, null
  br i1 %49, label %81, label %50

50:                                               ; preds = %47
  br label %51

51:                                               ; preds = %50
  br label %52

52:                                               ; preds = %51
  %53 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %54 = getelementptr inbounds %struct.s2n_debug_info, ptr %53, i32 0, i32 0
  store ptr @.str.1, ptr %54, align 8, !tbaa !9
  %55 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %56 = getelementptr inbounds %struct.s2n_debug_info, ptr %55, i32 0, i32 0
  %57 = load ptr, ptr %56, align 8, !tbaa !9
  %58 = getelementptr inbounds i8, ptr %57, i64 21
  %59 = call ptr @strrchr(ptr noundef %58, i32 noundef 47) #5
  %60 = icmp ne ptr %59, null
  br i1 %60, label %61, label %68

61:                                               ; preds = %52
  %62 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %63 = getelementptr inbounds %struct.s2n_debug_info, ptr %62, i32 0, i32 0
  %64 = load ptr, ptr %63, align 8, !tbaa !9
  %65 = getelementptr inbounds i8, ptr %64, i64 21
  %66 = call ptr @strrchr(ptr noundef %65, i32 noundef 47) #5
  %67 = getelementptr inbounds i8, ptr %66, i64 1
  br label %73

68:                                               ; preds = %52
  %69 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %70 = getelementptr inbounds %struct.s2n_debug_info, ptr %69, i32 0, i32 0
  %71 = load ptr, ptr %70, align 8, !tbaa !9
  %72 = getelementptr inbounds i8, ptr %71, i64 21
  br label %73

73:                                               ; preds = %68, %61
  %74 = phi ptr [ %67, %61 ], [ %72, %68 ]
  %75 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %76 = getelementptr inbounds %struct.s2n_debug_info, ptr %75, i32 0, i32 1
  store ptr %74, ptr %76, align 8, !tbaa !11
  %77 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %77, align 4, !tbaa !12
  %78 = call i32 @s2n_calculate_stacktrace()
  br label %79

79:                                               ; preds = %73
  store i32 -1, ptr %4, align 4
  br label %115

80:                                               ; No predecessors!
  br label %81

81:                                               ; preds = %80, %47
  br label %82

82:                                               ; preds = %81
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #6
  store i8 0, ptr %8, align 1, !tbaa !14
  br label %83

83:                                               ; preds = %82
  %84 = load ptr, ptr %5, align 8, !tbaa !5
  %85 = getelementptr inbounds %struct.s2n_extension_type, ptr %84, i32 0, i32 0
  %86 = load i16, ptr %85, align 8, !tbaa !15
  %87 = call i32 @s2n_extension_supported_iana_value_to_id(i16 noundef zeroext %86, ptr noundef %8)
  %88 = icmp sgt i32 %87, -1
  br i1 %88, label %90, label %89

89:                                               ; preds = %83
  store i32 -1, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %114

90:                                               ; preds = %83
  br label %91

91:                                               ; preds = %90
  br label %92

92:                                               ; preds = %91
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #6
  %93 = load ptr, ptr %7, align 8, !tbaa !5
  %94 = getelementptr inbounds %struct.s2n_parsed_extensions_list, ptr %93, i32 0, i32 0
  %95 = load i8, ptr %8, align 1, !tbaa !14
  %96 = zext i8 %95 to i64
  %97 = getelementptr inbounds [21 x %struct.s2n_parsed_extension], ptr %94, i64 0, i64 %96
  store ptr %97, ptr %10, align 8, !tbaa !5
  br label %98

98:                                               ; preds = %92
  %99 = load ptr, ptr %5, align 8, !tbaa !5
  %100 = load ptr, ptr %6, align 8, !tbaa !5
  %101 = load ptr, ptr %10, align 8, !tbaa !5
  %102 = call i32 @s2n_extension_process_impl(ptr noundef %99, ptr noundef %100, ptr noundef %101)
  %103 = icmp sgt i32 %102, -1
  br i1 %103, label %105, label %104

104:                                              ; preds = %98
  store i32 -1, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %113

105:                                              ; preds = %98
  br label %106

106:                                              ; preds = %105
  br label %107

107:                                              ; preds = %106
  %108 = load ptr, ptr %10, align 8, !tbaa !5
  %109 = getelementptr inbounds %struct.s2n_parsed_extension, ptr %108, i32 0, i32 3
  %110 = load i8, ptr %109, align 4
  %111 = and i8 %110, -2
  %112 = or i8 %111, 1
  store i8 %112, ptr %109, align 4
  store i32 0, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %113

113:                                              ; preds = %107, %104
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  br label %114

114:                                              ; preds = %113, %89
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #6
  br label %115

115:                                              ; preds = %114, %79, %43
  %116 = load i32, ptr %4, align 4
  ret i32 %116
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #2

; Function Attrs: nounwind willreturn memory(read)
declare ptr @strrchr(ptr noundef, i32 noundef) #3

declare i32 @s2n_calculate_stacktrace() #4

declare i32 @s2n_extension_supported_iana_value_to_id(i16 noundef zeroext, ptr noundef) #4

; Function Attrs: nounwind uwtable
declare hidden i32 @s2n_extension_process_impl(ptr noundef, ptr noundef, ptr noundef) #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #3 = { 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 #4 = { "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 #5 = { nounwind willreturn memory(read) }
attributes #6 = { 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}
!14 = !{!7, !7, i64 0}
!15 = !{!16, !17, i64 0}
!16 = !{!"", !17, i64 0, !13, i64 2, !17, i64 4, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32}
!17 = !{!"short", !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_parsed_extension = type { %struct.s2n_blob, i16, i16, i8 }
%struct.s2n_blob = type { ptr, i32, i32, i8 }

@.str = external hidden unnamed_addr constant [105 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 [105 x i8], align 1

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

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

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 1) i32 @s2n_extension_process(ptr noundef %0, ptr noundef %1, ptr noundef %2) local_unnamed_addr #1 {
  %4 = alloca i8, align 1
  %.not = icmp eq ptr %2, null
  br i1 %.not, label %5, label %13

5:                                                ; preds = %3
  %6 = tail call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str, ptr %6, align 8, !tbaa !5
  %7 = tail call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str, i64 21), i32 noundef 47) #5
  %.not12 = icmp eq ptr %7, null
  %8 = getelementptr inbounds i8, ptr %7, i64 1
  %9 = select i1 %.not12, 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 !10
  %11 = tail call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %11, align 4, !tbaa !11
  %12 = tail call i32 @s2n_calculate_stacktrace() #6
  br label %37

13:                                               ; preds = %3
  %.not13 = icmp eq ptr %0, null
  br i1 %.not13, label %14, label %22

14:                                               ; preds = %13
  %15 = tail call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str.1, ptr %15, align 8, !tbaa !5
  %16 = tail call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str.1, i64 21), i32 noundef 47) #5
  %.not14 = icmp eq ptr %16, null
  %17 = getelementptr inbounds i8, ptr %16, i64 1
  %18 = select i1 %.not14, ptr getelementptr inbounds (i8, ptr @.str.1, i64 21), ptr %17
  %19 = getelementptr inbounds i8, ptr %15, i64 8
  store ptr %18, ptr %19, align 8, !tbaa !10
  %20 = tail call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %20, align 4, !tbaa !11
  %21 = tail call i32 @s2n_calculate_stacktrace() #6
  br label %37

22:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #6
  store i8 0, ptr %4, align 1, !tbaa !13
  %23 = load i16, ptr %0, align 8, !tbaa !14
  %24 = call i32 @s2n_extension_supported_iana_value_to_id(i16 noundef zeroext %23, ptr noundef nonnull %4) #6
  %25 = icmp sgt i32 %24, -1
  br i1 %25, label %26, label %36

26:                                               ; preds = %22
  %27 = load i8, ptr %4, align 1, !tbaa !13
  %28 = zext i8 %27 to i64
  %29 = getelementptr inbounds [21 x %struct.s2n_parsed_extension], ptr %2, i64 0, i64 %28
  %30 = call i32 @s2n_extension_process_impl(ptr noundef nonnull %0, ptr noundef %1, ptr noundef nonnull %29)
  %31 = icmp sgt i32 %30, -1
  br i1 %31, label %32, label %36

32:                                               ; preds = %26
  %33 = getelementptr inbounds i8, ptr %29, i64 28
  %34 = load i8, ptr %33, align 4
  %35 = or i8 %34, 1
  store i8 %35, ptr %33, align 4
  br label %36

36:                                               ; preds = %32, %26, %22
  %.1 = phi i32 [ -1, %22 ], [ 0, %32 ], [ -1, %26 ]
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  br label %37

37:                                               ; preds = %36, %14, %5
  %.2 = phi i32 [ %.1, %36 ], [ -1, %14 ], [ -1, %5 ]
  ret i32 %.2
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #2

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare ptr @strrchr(ptr noundef, i32 noundef) local_unnamed_addr #3

declare i32 @s2n_calculate_stacktrace() local_unnamed_addr #4

declare i32 @s2n_extension_supported_iana_value_to_id(i16 noundef zeroext, ptr noundef) local_unnamed_addr #4

; Function Attrs: nounwind uwtable
declare hidden i32 @s2n_extension_process_impl(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #3 = { 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 #4 = { "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 #5 = { nounwind willreturn memory(read) }
attributes #6 = { 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}
!13 = !{!8, !8, i64 0}
!14 = !{!15, !16, i64 0}
!15 = !{!"", !16, i64 0, !12, i64 2, !16, i64 4, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32}
!16 = !{!"short", !8, i64 0}


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