; 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.46 = external hidden unnamed_addr constant [95 x i8], align 1
@.str.47 = external hidden unnamed_addr constant [95 x i8], align 1
@.str.48 = 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
define dso_local i32 @s2n_cert_get_utf8_string_from_extension_data_length(ptr noundef %0, i32 noundef %1, ptr noundef %2) #3 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  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.46, 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 402653193, ptr %38, align 4, !tbaa !9
  %39 = call i32 @s2n_calculate_stacktrace()
  br label %40

40:                                               ; preds = %34
  store i32 -1, ptr %4, align 4
  br label %125

41:                                               ; No predecessors!
  br label %42

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

43:                                               ; preds = %42
  br label %44

44:                                               ; preds = %43
  %45 = load i32, ptr %6, align 4, !tbaa !9
  %46 = icmp ugt i32 %45, 0
  br i1 %46, label %78, label %47

47:                                               ; preds = %44
  br label %48

48:                                               ; preds = %47
  br label %49

49:                                               ; preds = %48
  %50 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %51 = getelementptr inbounds %struct.s2n_debug_info, ptr %50, i32 0, i32 0
  store ptr @.str.47, ptr %51, align 8, !tbaa !11
  %52 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %53 = getelementptr inbounds %struct.s2n_debug_info, ptr %52, i32 0, i32 0
  %54 = load ptr, ptr %53, align 8, !tbaa !11
  %55 = getelementptr inbounds i8, ptr %54, i64 21
  %56 = call ptr @strrchr(ptr noundef %55, i32 noundef 47) #4
  %57 = icmp ne ptr %56, null
  br i1 %57, label %58, label %65

58:                                               ; preds = %49
  %59 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %60 = getelementptr inbounds %struct.s2n_debug_info, ptr %59, i32 0, i32 0
  %61 = load ptr, ptr %60, align 8, !tbaa !11
  %62 = getelementptr inbounds i8, ptr %61, i64 21
  %63 = call ptr @strrchr(ptr noundef %62, i32 noundef 47) #4
  %64 = getelementptr inbounds i8, ptr %63, i64 1
  br label %70

65:                                               ; preds = %49
  %66 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %67 = getelementptr inbounds %struct.s2n_debug_info, ptr %66, i32 0, i32 0
  %68 = load ptr, ptr %67, align 8, !tbaa !11
  %69 = getelementptr inbounds i8, ptr %68, i64 21
  br label %70

70:                                               ; preds = %65, %58
  %71 = phi ptr [ %64, %58 ], [ %69, %65 ]
  %72 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %73 = getelementptr inbounds %struct.s2n_debug_info, ptr %72, i32 0, i32 1
  store ptr %71, ptr %73, align 8, !tbaa !13
  %74 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653194, ptr %74, align 4, !tbaa !9
  %75 = call i32 @s2n_calculate_stacktrace()
  br label %76

76:                                               ; preds = %70
  store i32 -1, ptr %4, align 4
  br label %125

77:                                               ; No predecessors!
  br label %78

78:                                               ; preds = %77, %44
  br label %79

79:                                               ; preds = %78
  br label %80

80:                                               ; preds = %79
  %81 = load ptr, ptr %7, align 8, !tbaa !5
  %82 = icmp ne ptr %81, null
  br i1 %82, label %114, label %83

83:                                               ; preds = %80
  br label %84

84:                                               ; preds = %83
  br label %85

85:                                               ; preds = %84
  %86 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %87 = getelementptr inbounds %struct.s2n_debug_info, ptr %86, i32 0, i32 0
  store ptr @.str.48, ptr %87, align 8, !tbaa !11
  %88 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %89 = getelementptr inbounds %struct.s2n_debug_info, ptr %88, i32 0, i32 0
  %90 = load ptr, ptr %89, align 8, !tbaa !11
  %91 = getelementptr inbounds i8, ptr %90, i64 21
  %92 = call ptr @strrchr(ptr noundef %91, i32 noundef 47) #4
  %93 = icmp ne ptr %92, null
  br i1 %93, label %94, label %101

94:                                               ; preds = %85
  %95 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %96 = getelementptr inbounds %struct.s2n_debug_info, ptr %95, i32 0, i32 0
  %97 = load ptr, ptr %96, align 8, !tbaa !11
  %98 = getelementptr inbounds i8, ptr %97, i64 21
  %99 = call ptr @strrchr(ptr noundef %98, i32 noundef 47) #4
  %100 = getelementptr inbounds i8, ptr %99, i64 1
  br label %106

101:                                              ; preds = %85
  %102 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %103 = getelementptr inbounds %struct.s2n_debug_info, ptr %102, i32 0, i32 0
  %104 = load ptr, ptr %103, align 8, !tbaa !11
  %105 = getelementptr inbounds i8, ptr %104, i64 21
  br label %106

106:                                              ; preds = %101, %94
  %107 = phi ptr [ %100, %94 ], [ %105, %101 ]
  %108 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %109 = getelementptr inbounds %struct.s2n_debug_info, ptr %108, i32 0, i32 1
  store ptr %107, ptr %109, align 8, !tbaa !13
  %110 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %110, align 4, !tbaa !9
  %111 = call i32 @s2n_calculate_stacktrace()
  br label %112

112:                                              ; preds = %106
  store i32 -1, ptr %4, align 4
  br label %125

113:                                              ; No predecessors!
  br label %114

114:                                              ; preds = %113, %80
  br label %115

115:                                              ; preds = %114
  br label %116

116:                                              ; preds = %115
  %117 = load ptr, ptr %5, align 8, !tbaa !5
  %118 = load i32, ptr %6, align 4, !tbaa !9
  %119 = load ptr, ptr %7, align 8, !tbaa !5
  %120 = call i32 @s2n_utf8_string_from_extension_data(ptr noundef %117, i32 noundef %118, ptr noundef null, ptr noundef %119)
  %121 = icmp sgt i32 %120, -1
  br i1 %121, label %123, label %122

122:                                              ; preds = %116
  store i32 -1, ptr %4, align 4
  br label %125

123:                                              ; preds = %116
  br label %124

124:                                              ; preds = %123
  store i32 0, ptr %4, align 4
  br label %125

125:                                              ; preds = %124, %122, %112, %76, %40
  %126 = load i32, ptr %4, align 4
  ret i32 %126
}

; Function Attrs: nounwind uwtable
declare hidden i32 @s2n_utf8_string_from_extension_data(ptr noundef, i32 noundef, ptr noundef, ptr noundef) #3

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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"s2n_debug_info", !6, i64 0, !6, i64 8}
!13 = !{!12, !6, 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 }

@_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.46 = external hidden unnamed_addr constant [95 x i8], align 1
@.str.47 = external hidden unnamed_addr constant [95 x i8], align 1
@.str.48 = 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
define dso_local range(i32 -1, 1) i32 @s2n_cert_get_utf8_string_from_extension_data_length(ptr noundef %0, i32 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.46, ptr %5, align 8, !tbaa !5
  %6 = tail call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str.46, i64 21), i32 noundef 47) #4
  %.not12 = icmp eq ptr %6, null
  %7 = getelementptr inbounds i8, ptr %6, i64 1
  %8 = select i1 %.not12, ptr getelementptr inbounds (i8, ptr @.str.46, 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 %32

12:                                               ; preds = %3
  %.not13 = icmp eq i32 %1, 0
  br i1 %.not13, label %13, label %21

13:                                               ; preds = %12
  %14 = tail call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str.47, ptr %14, align 8, !tbaa !5
  %15 = tail call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str.47, i64 21), i32 noundef 47) #4
  %.not14 = icmp eq ptr %15, null
  %16 = getelementptr inbounds i8, ptr %15, i64 1
  %17 = select i1 %.not14, ptr getelementptr inbounds (i8, ptr @.str.47, i64 21), ptr %16
  %18 = getelementptr inbounds i8, ptr %14, i64 8
  store ptr %17, ptr %18, align 8, !tbaa !10
  %19 = tail call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653194, ptr %19, align 4, !tbaa !11
  %20 = tail call i32 @s2n_calculate_stacktrace() #5
  br label %32

21:                                               ; preds = %12
  %.not15 = icmp eq ptr %2, null
  br i1 %.not15, label %22, label %30

22:                                               ; preds = %21
  %23 = tail call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str.48, ptr %23, align 8, !tbaa !5
  %24 = tail call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str.48, i64 21), i32 noundef 47) #4
  %.not16 = icmp eq ptr %24, null
  %25 = getelementptr inbounds i8, ptr %24, i64 1
  %26 = select i1 %.not16, ptr getelementptr inbounds (i8, ptr @.str.48, i64 21), ptr %25
  %27 = getelementptr inbounds i8, ptr %23, i64 8
  store ptr %26, ptr %27, align 8, !tbaa !10
  %28 = tail call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %28, align 4, !tbaa !11
  %29 = tail call i32 @s2n_calculate_stacktrace() #5
  br label %32

30:                                               ; preds = %21
  %31 = tail call i32 @s2n_utf8_string_from_extension_data(ptr noundef nonnull %0, i32 noundef %1, ptr noundef null, ptr noundef nonnull %2)
  %.lobit = ashr i32 %31, 31
  br label %32

32:                                               ; preds = %30, %22, %13, %4
  %.0 = phi i32 [ -1, %22 ], [ -1, %13 ], [ -1, %4 ], [ %.lobit, %30 ]
  ret i32 %.0
}

; Function Attrs: nounwind uwtable
declare hidden i32 @s2n_utf8_string_from_extension_data(ptr noundef, i32 noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

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