; LLVM IR from aws/s2n-tls :: tls (s2n_signature_algorithms)

; 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_signature_scheme = type { i16, ptr, i32, i32, i8, i8, i16, ptr }
%struct.s2n_result = type { i32 }
%struct.s2n_connection = type { i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, [22 x i8], [22 x i8], [22 x i8], i32, i32, %struct.s2n_timer, i64, i64, [32 x i8], i8, i8, i8, i8, i8, i8, i8, ptr, ptr, %struct.s2n_secrets, ptr, ptr, %struct.s2n_kex_parameters, %struct.s2n_handshake_parameters, %struct.s2n_psk_parameters, ptr, i8, i32, [5 x i8], %struct.s2n_stuffer, %struct.s2n_stuffer, %struct.s2n_stuffer, %struct.s2n_stuffer, i32, i64, [2 x i8], %struct.s2n_stuffer, i8, i8, i8, i8, %struct.s2n_atomic_flag, %struct.s2n_atomic_flag, %struct.s2n_handshake, i16, i32, i16, i64, i8, i64, i64, i64, %struct.s2n_atomic_flag, %struct.s2n_atomic_flag, [256 x i8], [256 x i8], i32, %struct.s2n_blob, i32, %struct.s2n_blob, %struct.s2n_blob, %struct.s2n_blob, %struct.s2n_client_hello, %struct.s2n_x509_validator, ptr, ptr, i8, i32, %struct.s2n_blob, i32, %struct.s2n_ticket_fields, [138 x i8], %struct.s2n_stuffer, %struct.s2n_blob, %struct.s2n_blob, i8, i8, i8, i16, i16, i32, i32, %struct.s2n_blob, i32, %struct.s2n_post_handshake, %struct.s2n_atomic_flag, i8, i8 }
%struct.s2n_timer = type { i64 }
%struct.s2n_secrets = type { %union.anon, i32 }
%union.anon = type { %struct.s2n_tls13_secrets }
%struct.s2n_tls13_secrets = type { [48 x i8], [48 x i8], [48 x i8], [48 x i8], [48 x i8], [48 x i8], [48 x i8], [48 x i8], i32 }
%struct.s2n_kex_parameters = type { %struct.s2n_dh_params, %struct.s2n_ecc_evp_params, [4 x ptr], %struct.s2n_ecc_evp_params, %struct.s2n_kem_group_params, %struct.s2n_kem_group_params, [8 x ptr], %struct.s2n_kem_params, %struct.s2n_blob, %struct.s2n_blob }
%struct.s2n_dh_params = type { ptr }
%struct.s2n_ecc_evp_params = type { ptr, ptr }
%struct.s2n_kem_group_params = type { ptr, %struct.s2n_kem_params, %struct.s2n_ecc_evp_params }
%struct.s2n_kem_params = type { ptr, %struct.s2n_blob, %struct.s2n_blob, %struct.s2n_blob, i8 }
%struct.s2n_handshake_parameters = type { %struct.s2n_pkey, %struct.s2n_pkey, %struct.s2n_blob, i32, %struct.s2n_sig_scheme_list, ptr, ptr, ptr, [4 x ptr], [4 x ptr], i8, i8, [32 x i8], [32 x i8] }
%struct.s2n_pkey = type { ptr, ptr, ptr, ptr, ptr, ptr }
%struct.s2n_sig_scheme_list = type { [128 x i16], i8 }
%struct.s2n_psk_parameters = type { i32, %struct.s2n_array, i16, i16, ptr, i32 }
%struct.s2n_array = type { %struct.s2n_blob, i32, i32 }
%struct.s2n_handshake = type { %struct.s2n_stuffer, ptr, [8 x i8], [48 x i8], [48 x i8], i8, i32, i32, i32, i32, %struct.s2n_offered_early_data, i8, i32 }
%struct.s2n_offered_early_data = type { ptr }
%struct.s2n_client_hello = type { %struct.s2n_blob, %struct.s2n_parsed_extensions_list, %struct.s2n_blob, %struct.s2n_blob, %struct.s2n_blob, i8, i8, i8 }
%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_x509_validator = type { ptr, ptr, i8, i8, i16, ptr, i32, ptr, %struct.s2n_cert_validation_info, i8 }
%struct.s2n_cert_validation_info = type { i8, [3 x i8] }
%struct.s2n_ticket_fields = type { %struct.s2n_blob, i32 }
%struct.s2n_stuffer = type { %struct.s2n_blob, i32, i32, i32, i8 }
%struct.s2n_blob = type { ptr, i32, i32, i8 }
%struct.s2n_post_handshake = type { %struct.s2n_stuffer, [4 x i8] }
%struct.s2n_atomic_flag = type { i32 }
%struct.s2n_crypto_parameters = type { ptr, %struct.s2n_session_key, %struct.s2n_session_key, %struct.s2n_hmac_state, %struct.s2n_hmac_state, [16 x i8], [16 x i8], [8 x i8], [8 x i8] }
%struct.s2n_session_key = type { ptr }
%struct.s2n_hmac_state = type { i32, i16, i32, i16, i8, %struct.s2n_hash_state, %struct.s2n_hash_state, %struct.s2n_hash_state, %struct.s2n_hash_state, [128 x i8], [64 x i8] }
%struct.s2n_hash_state = type { ptr, i32, i8, i64, %union.anon.0 }
%union.anon.0 = type { %struct.s2n_hash_evp_digest }
%struct.s2n_hash_evp_digest = type { %struct.s2n_evp_digest, %struct.s2n_evp_digest }
%struct.s2n_evp_digest = type { ptr, ptr }
%struct.s2n_signature_preferences = type { i8, ptr }

@_s2n_debug_info = external thread_local global %struct.s2n_debug_info, align 8
@s2n_errno = external thread_local global i32, align 4
@.str.4 = external hidden unnamed_addr constant [101 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [101 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [101 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [101 x i8], align 1
@s2n_ecdsa_sha1 = external constant %struct.s2n_signature_scheme, align 8
@s2n_rsa_pkcs1_sha1 = external constant %struct.s2n_signature_scheme, align 8
@.str.8 = external hidden unnamed_addr constant [101 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: nounwind uwtable
declare hidden i32 @s2n_signature_algorithms_get_legacy_default(ptr noundef, i32 noundef, ptr noundef) #4

declare i32 @s2n_connection_get_signature_preferences(ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
declare hidden zeroext i1 @s2n_signature_scheme_is_valid_for_recv(ptr noundef, ptr noundef) #4

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

; Function Attrs: nounwind uwtable
define dso_local i32 @s2n_signature_algorithm_select(ptr noundef %0) #4 {
  %2 = alloca %struct.s2n_result, align 4
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca %struct.s2n_result, align 4
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i64, align 8
  %11 = alloca ptr, align 8
  %12 = alloca i8, align 1
  %13 = alloca i8, align 1
  store ptr %0, ptr %3, align 8, !tbaa !5
  br label %14

14:                                               ; preds = %1
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = icmp ne ptr %15, null
  br i1 %16, label %49, label %17

17:                                               ; preds = %14
  br label %18

18:                                               ; preds = %17
  br label %19

19:                                               ; preds = %18
  %20 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %21 = getelementptr inbounds %struct.s2n_debug_info, ptr %20, i32 0, i32 0
  store ptr @.str.4, ptr %21, align 8, !tbaa !9
  %22 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %23 = getelementptr inbounds %struct.s2n_debug_info, ptr %22, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8, !tbaa !9
  %25 = getelementptr inbounds i8, ptr %24, i64 21
  %26 = call ptr @strrchr(ptr noundef %25, i32 noundef 47) #6
  %27 = icmp ne ptr %26, null
  br i1 %27, label %28, label %35

28:                                               ; preds = %19
  %29 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %30 = getelementptr inbounds %struct.s2n_debug_info, ptr %29, i32 0, i32 0
  %31 = load ptr, ptr %30, align 8, !tbaa !9
  %32 = getelementptr inbounds i8, ptr %31, i64 21
  %33 = call ptr @strrchr(ptr noundef %32, i32 noundef 47) #6
  %34 = getelementptr inbounds i8, ptr %33, i64 1
  br label %40

35:                                               ; preds = %19
  %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 0
  %38 = load ptr, ptr %37, align 8, !tbaa !9
  %39 = getelementptr inbounds i8, ptr %38, i64 21
  br label %40

40:                                               ; preds = %35, %28
  %41 = phi ptr [ %34, %28 ], [ %39, %35 ]
  %42 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %43 = getelementptr inbounds %struct.s2n_debug_info, ptr %42, i32 0, i32 1
  store ptr %41, ptr %43, align 8, !tbaa !11
  %44 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %44, align 4, !tbaa !12
  %45 = call i32 @s2n_calculate_stacktrace()
  br label %46

46:                                               ; preds = %40
  %47 = getelementptr inbounds %struct.s2n_result, ptr %2, i32 0, i32 0
  store i32 -1, ptr %47, align 4, !tbaa !14
  br label %334

48:                                               ; No predecessors!
  br label %49

49:                                               ; preds = %48, %14
  br label %50

50:                                               ; preds = %49
  br label %51

51:                                               ; preds = %50
  %52 = load ptr, ptr %3, align 8, !tbaa !5
  %53 = getelementptr inbounds %struct.s2n_connection, ptr %52, i32 0, i32 27
  %54 = load ptr, ptr %53, align 8, !tbaa !16
  %55 = icmp ne ptr %54, null
  br i1 %55, label %88, label %56

56:                                               ; preds = %51
  br label %57

57:                                               ; preds = %56
  br label %58

58:                                               ; preds = %57
  %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
  store ptr @.str.5, ptr %60, align 8, !tbaa !9
  %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 !9
  %64 = getelementptr inbounds i8, ptr %63, i64 21
  %65 = call ptr @strrchr(ptr noundef %64, i32 noundef 47) #6
  %66 = icmp ne ptr %65, null
  br i1 %66, label %67, label %74

67:                                               ; preds = %58
  %68 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %69 = getelementptr inbounds %struct.s2n_debug_info, ptr %68, i32 0, i32 0
  %70 = load ptr, ptr %69, align 8, !tbaa !9
  %71 = getelementptr inbounds i8, ptr %70, i64 21
  %72 = call ptr @strrchr(ptr noundef %71, i32 noundef 47) #6
  %73 = getelementptr inbounds i8, ptr %72, i64 1
  br label %79

74:                                               ; preds = %58
  %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 0
  %77 = load ptr, ptr %76, align 8, !tbaa !9
  %78 = getelementptr inbounds i8, ptr %77, i64 21
  br label %79

79:                                               ; preds = %74, %67
  %80 = phi ptr [ %73, %67 ], [ %78, %74 ]
  %81 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %82 = getelementptr inbounds %struct.s2n_debug_info, ptr %81, i32 0, i32 1
  store ptr %80, ptr %82, align 8, !tbaa !11
  %83 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %83, align 4, !tbaa !12
  %84 = call i32 @s2n_calculate_stacktrace()
  br label %85

85:                                               ; preds = %79
  %86 = getelementptr inbounds %struct.s2n_result, ptr %2, i32 0, i32 0
  store i32 -1, ptr %86, align 4, !tbaa !14
  br label %334

87:                                               ; No predecessors!
  br label %88

88:                                               ; preds = %87, %51
  br label %89

89:                                               ; preds = %88
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #7
  %90 = load ptr, ptr %3, align 8, !tbaa !5
  %91 = getelementptr inbounds %struct.s2n_connection, ptr %90, i32 0, i32 27
  %92 = load ptr, ptr %91, align 8, !tbaa !16
  %93 = getelementptr inbounds %struct.s2n_crypto_parameters, ptr %92, i32 0, i32 0
  %94 = load ptr, ptr %93, align 8, !tbaa !43
  store ptr %94, ptr %4, align 8, !tbaa !5
  br label %95

95:                                               ; preds = %89
  %96 = load ptr, ptr %4, align 8, !tbaa !5
  %97 = icmp ne ptr %96, null
  br i1 %97, label %132, label %98

98:                                               ; preds = %95
  br label %99

99:                                               ; preds = %98
  br label %100

100:                                              ; preds = %99
  %101 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %102 = getelementptr inbounds %struct.s2n_debug_info, ptr %101, i32 0, i32 0
  store ptr @.str.6, ptr %102, align 8, !tbaa !9
  %103 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %104 = getelementptr inbounds %struct.s2n_debug_info, ptr %103, i32 0, i32 0
  %105 = load ptr, ptr %104, align 8, !tbaa !9
  %106 = getelementptr inbounds i8, ptr %105, i64 21
  %107 = call ptr @strrchr(ptr noundef %106, i32 noundef 47) #6
  %108 = icmp ne ptr %107, null
  br i1 %108, label %109, label %116

109:                                              ; preds = %100
  %110 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %111 = getelementptr inbounds %struct.s2n_debug_info, ptr %110, i32 0, i32 0
  %112 = load ptr, ptr %111, align 8, !tbaa !9
  %113 = getelementptr inbounds i8, ptr %112, i64 21
  %114 = call ptr @strrchr(ptr noundef %113, i32 noundef 47) #6
  %115 = getelementptr inbounds i8, ptr %114, i64 1
  br label %121

116:                                              ; preds = %100
  %117 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %118 = getelementptr inbounds %struct.s2n_debug_info, ptr %117, i32 0, i32 0
  %119 = load ptr, ptr %118, align 8, !tbaa !9
  %120 = getelementptr inbounds i8, ptr %119, i64 21
  br label %121

121:                                              ; preds = %116, %109
  %122 = phi ptr [ %115, %109 ], [ %120, %116 ]
  %123 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %124 = getelementptr inbounds %struct.s2n_debug_info, ptr %123, i32 0, i32 1
  store ptr %122, ptr %124, align 8, !tbaa !11
  %125 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %125, align 4, !tbaa !12
  %126 = call i32 @s2n_calculate_stacktrace()
  br label %127

127:                                              ; preds = %121
  br label %128

128:                                              ; preds = %127
  %129 = getelementptr inbounds %struct.s2n_result, ptr %2, i32 0, i32 0
  store i32 -1, ptr %129, align 4, !tbaa !14
  store i32 1, ptr %5, align 4
  br label %333

130:                                              ; No predecessors!
  br label %131

131:                                              ; preds = %130
  br label %132

132:                                              ; preds = %131, %95
  br label %133

133:                                              ; preds = %132
  br label %134

134:                                              ; preds = %133
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #7
  store ptr null, ptr %6, align 8, !tbaa !5
  %135 = load ptr, ptr %3, align 8, !tbaa !5
  %136 = getelementptr inbounds %struct.s2n_connection, ptr %135, i32 0, i32 13
  %137 = load i32, ptr %136, align 4, !tbaa !48
  %138 = icmp eq i32 %137, 1
  br i1 %138, label %139, label %143

139:                                              ; preds = %134
  %140 = load ptr, ptr %3, align 8, !tbaa !5
  %141 = getelementptr inbounds %struct.s2n_connection, ptr %140, i32 0, i32 32
  %142 = getelementptr inbounds %struct.s2n_handshake_parameters, ptr %141, i32 0, i32 6
  store ptr %142, ptr %6, align 8, !tbaa !5
  br label %147

143:                                              ; preds = %134
  %144 = load ptr, ptr %3, align 8, !tbaa !5
  %145 = getelementptr inbounds %struct.s2n_connection, ptr %144, i32 0, i32 32
  %146 = getelementptr inbounds %struct.s2n_handshake_parameters, ptr %145, i32 0, i32 5
  store ptr %146, ptr %6, align 8, !tbaa !5
  br label %147

147:                                              ; preds = %143, %139
  %148 = load ptr, ptr %3, align 8, !tbaa !5
  %149 = getelementptr inbounds %struct.s2n_connection, ptr %148, i32 0, i32 23
  %150 = load i8, ptr %149, align 4, !tbaa !49
  %151 = zext i8 %150 to i32
  %152 = icmp slt i32 %151, 33
  br i1 %152, label %153, label %171

153:                                              ; preds = %147
  br label %154

154:                                              ; preds = %153
  %155 = load ptr, ptr %3, align 8, !tbaa !5
  %156 = load ptr, ptr %3, align 8, !tbaa !5
  %157 = getelementptr inbounds %struct.s2n_connection, ptr %156, i32 0, i32 13
  %158 = load i32, ptr %157, align 4, !tbaa !48
  %159 = load ptr, ptr %6, align 8, !tbaa !5
  %160 = call i32 @s2n_signature_algorithms_get_legacy_default(ptr noundef %155, i32 noundef %158, ptr noundef %159)
  %161 = getelementptr inbounds %struct.s2n_result, ptr %7, i32 0, i32 0
  store i32 %160, ptr %161, align 4
  %162 = getelementptr inbounds %struct.s2n_result, ptr %7, i32 0, i32 0
  %163 = load i32, ptr %162, align 4
  %164 = call zeroext i1 @s2n_result_is_ok(i32 %163)
  br i1 %164, label %167, label %165

165:                                              ; preds = %154
  %166 = getelementptr inbounds %struct.s2n_result, ptr %2, i32 0, i32 0
  store i32 -1, ptr %166, align 4, !tbaa !14
  store i32 1, ptr %5, align 4
  br label %332

167:                                              ; preds = %154
  br label %168

168:                                              ; preds = %167
  br label %169

169:                                              ; preds = %168
  %170 = getelementptr inbounds %struct.s2n_result, ptr %2, i32 0, i32 0
  store i32 0, ptr %170, align 4, !tbaa !14
  store i32 1, ptr %5, align 4
  br label %332

171:                                              ; preds = %147
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #7
  store ptr null, ptr %8, align 8, !tbaa !5
  br label %172

172:                                              ; preds = %171
  %173 = load ptr, ptr %3, align 8, !tbaa !5
  %174 = call i32 @s2n_connection_get_signature_preferences(ptr noundef %173, ptr noundef %8)
  %175 = icmp sgt i32 %174, -1
  br i1 %175, label %178, label %176

176:                                              ; preds = %172
  %177 = getelementptr inbounds %struct.s2n_result, ptr %2, i32 0, i32 0
  store i32 -1, ptr %177, align 4, !tbaa !14
  store i32 1, ptr %5, align 4
  br label %331

178:                                              ; preds = %172
  br label %179

179:                                              ; preds = %178
  br label %180

180:                                              ; preds = %179
  br label %181

181:                                              ; preds = %180
  %182 = load ptr, ptr %8, align 8, !tbaa !5
  %183 = icmp ne ptr %182, null
  br i1 %183, label %218, label %184

184:                                              ; preds = %181
  br label %185

185:                                              ; preds = %184
  br label %186

186:                                              ; preds = %185
  %187 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %188 = getelementptr inbounds %struct.s2n_debug_info, ptr %187, i32 0, i32 0
  store ptr @.str.7, ptr %188, align 8, !tbaa !9
  %189 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %190 = getelementptr inbounds %struct.s2n_debug_info, ptr %189, i32 0, i32 0
  %191 = load ptr, ptr %190, align 8, !tbaa !9
  %192 = getelementptr inbounds i8, ptr %191, i64 21
  %193 = call ptr @strrchr(ptr noundef %192, i32 noundef 47) #6
  %194 = icmp ne ptr %193, null
  br i1 %194, label %195, label %202

195:                                              ; preds = %186
  %196 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %197 = getelementptr inbounds %struct.s2n_debug_info, ptr %196, i32 0, i32 0
  %198 = load ptr, ptr %197, align 8, !tbaa !9
  %199 = getelementptr inbounds i8, ptr %198, i64 21
  %200 = call ptr @strrchr(ptr noundef %199, i32 noundef 47) #6
  %201 = getelementptr inbounds i8, ptr %200, i64 1
  br label %207

202:                                              ; preds = %186
  %203 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %204 = getelementptr inbounds %struct.s2n_debug_info, ptr %203, i32 0, i32 0
  %205 = load ptr, ptr %204, align 8, !tbaa !9
  %206 = getelementptr inbounds i8, ptr %205, i64 21
  br label %207

207:                                              ; preds = %202, %195
  %208 = phi ptr [ %201, %195 ], [ %206, %202 ]
  %209 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %210 = getelementptr inbounds %struct.s2n_debug_info, ptr %209, i32 0, i32 1
  store ptr %208, ptr %210, align 8, !tbaa !11
  %211 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %211, align 4, !tbaa !12
  %212 = call i32 @s2n_calculate_stacktrace()
  br label %213

213:                                              ; preds = %207
  br label %214

214:                                              ; preds = %213
  %215 = getelementptr inbounds %struct.s2n_result, ptr %2, i32 0, i32 0
  store i32 -1, ptr %215, align 4, !tbaa !14
  store i32 1, ptr %5, align 4
  br label %331

216:                                              ; No predecessors!
  br label %217

217:                                              ; preds = %216
  br label %218

218:                                              ; preds = %217, %181
  br label %219

219:                                              ; preds = %218
  br label %220

220:                                              ; preds = %219
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #7
  store ptr null, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #7
  store i64 0, ptr %10, align 8, !tbaa !50
  br label %221

221:                                              ; preds = %283, %220
  %222 = load i64, ptr %10, align 8, !tbaa !50
  %223 = load ptr, ptr %8, align 8, !tbaa !5
  %224 = getelementptr inbounds %struct.s2n_signature_preferences, ptr %223, i32 0, i32 0
  %225 = load i8, ptr %224, align 8, !tbaa !51
  %226 = zext i8 %225 to i64
  %227 = icmp ult i64 %222, %226
  br i1 %227, label %229, label %228

228:                                              ; preds = %221
  store i32 30, ptr %5, align 4
  br label %286

229:                                              ; preds = %221
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #7
  %230 = load ptr, ptr %8, align 8, !tbaa !5
  %231 = getelementptr inbounds %struct.s2n_signature_preferences, ptr %230, i32 0, i32 1
  %232 = load ptr, ptr %231, align 8, !tbaa !53
  %233 = load i64, ptr %10, align 8, !tbaa !50
  %234 = getelementptr inbounds ptr, ptr %232, i64 %233
  %235 = load ptr, ptr %234, align 8, !tbaa !5
  store ptr %235, ptr %11, align 8, !tbaa !5
  %236 = load ptr, ptr %3, align 8, !tbaa !5
  %237 = load ptr, ptr %11, align 8, !tbaa !5
  %238 = call zeroext i1 @s2n_signature_scheme_is_valid_for_recv(ptr noundef %236, ptr noundef %237)
  br i1 %238, label %240, label %239

239:                                              ; preds = %229
  store i32 32, ptr %5, align 4
  br label %280

240:                                              ; preds = %229
  %241 = load ptr, ptr %3, align 8, !tbaa !5
  %242 = load ptr, ptr %11, align 8, !tbaa !5
  %243 = call i32 @s2n_is_sig_scheme_valid_for_auth(ptr noundef %241, ptr noundef %242)
  %244 = icmp ne i32 %243, 0
  br i1 %244, label %245, label %246

245:                                              ; preds = %240
  store i32 32, ptr %5, align 4
  br label %280

246:                                              ; preds = %240
  call void @llvm.lifetime.start.p0(i64 1, ptr %12) #7
  %247 = load ptr, ptr %3, align 8, !tbaa !5
  %248 = load ptr, ptr %11, align 8, !tbaa !5
  %249 = getelementptr inbounds %struct.s2n_signature_scheme, ptr %248, i32 0, i32 0
  %250 = load i16, ptr %249, align 8, !tbaa !54
  %251 = call zeroext i1 @s2n_signature_algorithm_is_supported_by_peer(ptr noundef %247, i16 noundef zeroext %250)
  %252 = zext i1 %251 to i8
  store i8 %252, ptr %12, align 1, !tbaa !56
  %253 = load i8, ptr %12, align 1, !tbaa !56, !range !57, !noundef !58
  %254 = trunc i8 %253 to i1
  br i1 %254, label %255, label %259

255:                                              ; preds = %246
  %256 = load ptr, ptr %11, align 8, !tbaa !5
  %257 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %256, ptr %257, align 8, !tbaa !5
  %258 = getelementptr inbounds %struct.s2n_result, ptr %2, i32 0, i32 0
  store i32 0, ptr %258, align 4, !tbaa !14
  store i32 1, ptr %5, align 4
  br label %279

259:                                              ; preds = %246
  call void @llvm.lifetime.start.p0(i64 1, ptr %13) #7
  %260 = load ptr, ptr %11, align 8, !tbaa !5
  %261 = icmp eq ptr %260, @s2n_ecdsa_sha1
  br i1 %261, label %265, label %262

262:                                              ; preds = %259
  %263 = load ptr, ptr %11, align 8, !tbaa !5
  %264 = icmp eq ptr %263, @s2n_rsa_pkcs1_sha1
  br label %265

265:                                              ; preds = %262, %259
  %266 = phi i1 [ true, %259 ], [ %264, %262 ]
  %267 = zext i1 %266 to i8
  store i8 %267, ptr %13, align 1, !tbaa !56
  %268 = load i8, ptr %13, align 1, !tbaa !56, !range !57, !noundef !58
  %269 = trunc i8 %268 to i1
  br i1 %269, label %270, label %272

270:                                              ; preds = %265
  %271 = load ptr, ptr %11, align 8, !tbaa !5
  store ptr %271, ptr %9, align 8, !tbaa !5
  br label %278

272:                                              ; preds = %265
  %273 = load ptr, ptr %9, align 8, !tbaa !5
  %274 = icmp eq ptr %273, null
  br i1 %274, label %275, label %277

275:                                              ; preds = %272
  %276 = load ptr, ptr %11, align 8, !tbaa !5
  store ptr %276, ptr %9, align 8, !tbaa !5
  br label %277

277:                                              ; preds = %275, %272
  br label %278

278:                                              ; preds = %277, %270
  call void @llvm.lifetime.end.p0(i64 1, ptr %13) #7
  store i32 0, ptr %5, align 4
  br label %279

279:                                              ; preds = %278, %255
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #7
  br label %280

280:                                              ; preds = %279, %245, %239
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #7
  %281 = load i32, ptr %5, align 4
  switch i32 %281, label %286 [
    i32 0, label %282
    i32 32, label %283
  ]

282:                                              ; preds = %280
  br label %283

283:                                              ; preds = %282, %280
  %284 = load i64, ptr %10, align 8, !tbaa !50
  %285 = add i64 %284, 1
  store i64 %285, ptr %10, align 8, !tbaa !50
  br label %221, !llvm.loop !59

286:                                              ; preds = %280, %228
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #7
  %287 = load i32, ptr %5, align 4
  switch i32 %287, label %330 [
    i32 30, label %288
  ]

288:                                              ; preds = %286
  %289 = load ptr, ptr %9, align 8, !tbaa !5
  %290 = icmp ne ptr %289, null
  br i1 %290, label %291, label %294

291:                                              ; preds = %288
  %292 = load ptr, ptr %9, align 8, !tbaa !5
  %293 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %292, ptr %293, align 8, !tbaa !5
  br label %328

294:                                              ; preds = %288
  br label %295

295:                                              ; preds = %294
  br label %296

296:                                              ; preds = %295
  %297 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %298 = getelementptr inbounds %struct.s2n_debug_info, ptr %297, i32 0, i32 0
  store ptr @.str.8, ptr %298, align 8, !tbaa !9
  %299 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %300 = getelementptr inbounds %struct.s2n_debug_info, ptr %299, i32 0, i32 0
  %301 = load ptr, ptr %300, align 8, !tbaa !9
  %302 = getelementptr inbounds i8, ptr %301, i64 21
  %303 = call ptr @strrchr(ptr noundef %302, i32 noundef 47) #6
  %304 = icmp ne ptr %303, null
  br i1 %304, label %305, label %312

305:                                              ; preds = %296
  %306 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %307 = getelementptr inbounds %struct.s2n_debug_info, ptr %306, i32 0, i32 0
  %308 = load ptr, ptr %307, align 8, !tbaa !9
  %309 = getelementptr inbounds i8, ptr %308, i64 21
  %310 = call ptr @strrchr(ptr noundef %309, i32 noundef 47) #6
  %311 = getelementptr inbounds i8, ptr %310, i64 1
  br label %317

312:                                              ; preds = %296
  %313 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %314 = getelementptr inbounds %struct.s2n_debug_info, ptr %313, i32 0, i32 0
  %315 = load ptr, ptr %314, align 8, !tbaa !9
  %316 = getelementptr inbounds i8, ptr %315, i64 21
  br label %317

317:                                              ; preds = %312, %305
  %318 = phi ptr [ %311, %305 ], [ %316, %312 ]
  %319 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %320 = getelementptr inbounds %struct.s2n_debug_info, ptr %319, i32 0, i32 1
  store ptr %318, ptr %320, align 8, !tbaa !11
  %321 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 335544349, ptr %321, align 4, !tbaa !12
  %322 = call i32 @s2n_calculate_stacktrace()
  br label %323

323:                                              ; preds = %317
  br label %324

324:                                              ; preds = %323
  %325 = getelementptr inbounds %struct.s2n_result, ptr %2, i32 0, i32 0
  store i32 -1, ptr %325, align 4, !tbaa !14
  store i32 1, ptr %5, align 4
  br label %330

326:                                              ; No predecessors!
  br label %327

327:                                              ; preds = %326
  br label %328

328:                                              ; preds = %327, %291
  %329 = getelementptr inbounds %struct.s2n_result, ptr %2, i32 0, i32 0
  store i32 0, ptr %329, align 4, !tbaa !14
  store i32 1, ptr %5, align 4
  br label %330

330:                                              ; preds = %328, %324, %286
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #7
  br label %331

331:                                              ; preds = %330, %214, %176
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #7
  br label %332

332:                                              ; preds = %331, %169, %165
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #7
  br label %333

333:                                              ; preds = %332, %128
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #7
  br label %334

334:                                              ; preds = %333, %85, %46
  %335 = getelementptr inbounds %struct.s2n_result, ptr %2, i32 0, i32 0
  %336 = load i32, ptr %335, align 4
  ret i32 %336
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden zeroext i1 @s2n_result_is_ok(i32) #5

declare i32 @s2n_is_sig_scheme_valid_for_auth(ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
declare hidden zeroext i1 @s2n_signature_algorithm_is_supported_by_peer(ptr noundef, i16 noundef zeroext) #4

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 = { 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 #5 = { inlinehint 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}
!14 = !{!15, !13, i64 0}
!15 = !{!"", !13, i64 0}
!16 = !{!17, !6, i64 232}
!17 = !{!"s2n_connection", !13, i64 0, !13, i64 0, !13, i64 0, !13, i64 0, !13, i64 0, !13, i64 0, !13, i64 0, !13, i64 0, !13, i64 1, !13, i64 1, !13, i64 1, !13, i64 1, !13, i64 1, !13, i64 1, !13, i64 1, !13, i64 1, !13, i64 2, !13, i64 2, !13, i64 2, !13, i64 2, !13, i64 2, !13, i64 2, !13, i64 2, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72, !7, i64 80, !7, i64 102, !7, i64 124, !13, i64 148, !13, i64 152, !18, i64 160, !19, i64 168, !19, i64 176, !7, i64 184, !7, i64 216, !7, i64 217, !7, i64 218, !7, i64 219, !7, i64 220, !7, i64 221, !7, i64 222, !6, i64 224, !6, i64 232, !20, i64 240, !6, i64 632, !6, i64 640, !21, i64 648, !28, i64 1144, !31, i64 1688, !6, i64 1752, !7, i64 1760, !13, i64 1764, !7, i64 1768, !34, i64 1776, !34, i64 1816, !34, i64 1856, !34, i64 1896, !13, i64 1936, !19, i64 1944, !7, i64 1952, !34, i64 1960, !7, i64 2000, !7, i64 2001, !7, i64 2002, !27, i64 2003, !15, i64 2004, !15, i64 2008, !35, i64 2016, !33, i64 2208, !13, i64 2212, !33, i64 2216, !19, i64 2224, !7, i64 2232, !19, i64 2240, !19, i64 2248, !19, i64 2256, !15, i64 2264, !15, i64 2268, !7, i64 2272, !7, i64 2528, !13, i64 2784, !26, i64 2792, !13, i64 2816, !26, i64 2824, !26, i64 2848, !26, i64 2872, !37, i64 2896, !39, i64 3704, !6, i64 3760, !6, i64 3768, !7, i64 3776, !13, i64 3780, !26, i64 3784, !13, i64 3808, !41, i64 3816, !7, i64 3848, !34, i64 3992, !26, i64 4032, !26, i64 4056, !27, i64 4080, !27, i64 4081, !27, i64 4082, !33, i64 4084, !33, i64 4086, !13, i64 4088, !13, i64 4092, !26, i64 4096, !13, i64 4120, !42, i64 4128, !15, i64 4176, !7, i64 4180, !7, i64 4181}
!18 = !{!"s2n_timer", !19, i64 0}
!19 = !{!"long", !7, i64 0}
!20 = !{!"s2n_secrets", !7, i64 0, !13, i64 388}
!21 = !{!"s2n_kex_parameters", !22, i64 0, !23, i64 8, !7, i64 24, !23, i64 56, !24, i64 72, !24, i64 184, !7, i64 296, !25, i64 360, !26, i64 448, !26, i64 472}
!22 = !{!"s2n_dh_params", !6, i64 0}
!23 = !{!"s2n_ecc_evp_params", !6, i64 0, !6, i64 8}
!24 = !{!"s2n_kem_group_params", !6, i64 0, !25, i64 8, !23, i64 96}
!25 = !{!"s2n_kem_params", !6, i64 0, !26, i64 8, !26, i64 32, !26, i64 56, !27, i64 80}
!26 = !{!"s2n_blob", !6, i64 0, !13, i64 8, !13, i64 12, !13, i64 16}
!27 = !{!"_Bool", !7, i64 0}
!28 = !{!"s2n_handshake_parameters", !29, i64 0, !29, i64 48, !26, i64 96, !13, i64 120, !30, i64 124, !6, i64 384, !6, i64 392, !6, i64 400, !7, i64 408, !7, i64 440, !7, i64 472, !7, i64 473, !7, i64 474, !7, i64 506}
!29 = !{!"s2n_pkey", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40}
!30 = !{!"s2n_sig_scheme_list", !7, i64 0, !7, i64 256}
!31 = !{!"s2n_psk_parameters", !13, i64 0, !32, i64 8, !33, i64 40, !33, i64 42, !6, i64 48, !13, i64 56}
!32 = !{!"s2n_array", !26, i64 0, !13, i64 24, !13, i64 28}
!33 = !{!"short", !7, i64 0}
!34 = !{!"s2n_stuffer", !26, i64 0, !13, i64 24, !13, i64 28, !13, i64 32, !13, i64 36, !13, i64 36, !13, i64 36}
!35 = !{!"s2n_handshake", !34, i64 0, !6, i64 40, !7, i64 48, !7, i64 56, !7, i64 104, !7, i64 152, !13, i64 156, !13, i64 160, !13, i64 164, !13, i64 168, !36, i64 176, !13, i64 184, !13, i64 184, !13, i64 184, !13, i64 184, !13, i64 188}
!36 = !{!"s2n_offered_early_data", !6, i64 0}
!37 = !{!"s2n_client_hello", !26, i64 0, !38, i64 24, !26, i64 728, !26, i64 752, !26, i64 776, !7, i64 800, !7, i64 801, !13, i64 802, !13, i64 802, !13, i64 802, !13, i64 802, !13, i64 802, !13, i64 802, !13, i64 802}
!38 = !{!"", !7, i64 0, !26, i64 672, !33, i64 696}
!39 = !{!"s2n_x509_validator", !6, i64 0, !6, i64 8, !7, i64 16, !7, i64 17, !33, i64 18, !6, i64 24, !13, i64 32, !6, i64 40, !40, i64 48, !27, i64 52}
!40 = !{!"s2n_cert_validation_info", !13, i64 0, !13, i64 0}
!41 = !{!"s2n_ticket_fields", !26, i64 0, !13, i64 24}
!42 = !{!"s2n_post_handshake", !34, i64 0, !7, i64 40}
!43 = !{!44, !6, i64 0}
!44 = !{!"s2n_crypto_parameters", !6, i64 0, !45, i64 8, !45, i64 16, !46, i64 24, !46, i64 456, !7, i64 888, !7, i64 904, !7, i64 920, !7, i64 928}
!45 = !{!"s2n_session_key", !6, i64 0}
!46 = !{!"s2n_hmac_state", !13, i64 0, !33, i64 4, !13, i64 8, !33, i64 12, !7, i64 14, !47, i64 16, !47, i64 72, !47, i64 128, !47, i64 184, !7, i64 240, !7, i64 368}
!47 = !{!"s2n_hash_state", !6, i64 0, !13, i64 8, !7, i64 12, !19, i64 16, !7, i64 24}
!48 = !{!17, !13, i64 148}
!49 = !{!17, !7, i64 220}
!50 = !{!19, !19, i64 0}
!51 = !{!52, !7, i64 0}
!52 = !{!"s2n_signature_preferences", !7, i64 0, !6, i64 8}
!53 = !{!52, !6, i64 8}
!54 = !{!55, !33, i64 0}
!55 = !{!"s2n_signature_scheme", !33, i64 0, !6, i64 8, !13, i64 16, !13, i64 20, !7, i64 24, !7, i64 25, !33, i64 26, !6, i64 32}
!56 = !{!27, !27, i64 0}
!57 = !{i8 0, i8 2}
!58 = !{}
!59 = distinct !{!59, !60}
!60 = !{!"llvm.loop.mustprogress"}


; 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_signature_scheme = type { i16, ptr, i32, i32, i8, i8, i16, 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.4 = external hidden unnamed_addr constant [101 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [101 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [101 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [101 x i8], align 1
@s2n_ecdsa_sha1 = external constant %struct.s2n_signature_scheme, align 8
@s2n_rsa_pkcs1_sha1 = external constant %struct.s2n_signature_scheme, align 8
@.str.8 = external hidden unnamed_addr constant [101 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: nounwind uwtable
declare hidden i32 @s2n_signature_algorithms_get_legacy_default(ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #4

declare i32 @s2n_connection_get_signature_preferences(ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare hidden zeroext i1 @s2n_signature_scheme_is_valid_for_recv(ptr noundef, ptr noundef) local_unnamed_addr #4

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

; Function Attrs: nounwind uwtable
define dso_local i32 @s2n_signature_algorithm_select(ptr noundef %0) local_unnamed_addr #4 {
  %2 = alloca ptr, 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.4, ptr %4, align 8, !tbaa !5
  %5 = tail call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str.4, i64 21), i32 noundef 47) #6
  %.not48 = icmp eq ptr %5, null
  %6 = getelementptr inbounds i8, ptr %5, i64 1
  %7 = select i1 %.not48, ptr getelementptr inbounds (i8, ptr @.str.4, 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 %87

11:                                               ; preds = %1
  %12 = getelementptr inbounds i8, ptr %0, i64 232
  %13 = load ptr, ptr %12, align 8, !tbaa !13
  %.not49 = icmp eq ptr %13, null
  br i1 %.not49, label %14, label %22

14:                                               ; preds = %11
  %15 = tail call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str.5, ptr %15, align 8, !tbaa !5
  %16 = tail call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str.5, i64 21), i32 noundef 47) #6
  %.not50 = icmp eq ptr %16, null
  %17 = getelementptr inbounds i8, ptr %16, i64 1
  %18 = select i1 %.not50, ptr getelementptr inbounds (i8, ptr @.str.5, 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() #7
  br label %87

22:                                               ; preds = %11
  %23 = load ptr, ptr %13, align 8, !tbaa !41
  %.not51 = icmp eq ptr %23, null
  br i1 %.not51, label %24, label %32

24:                                               ; preds = %22
  %25 = tail call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str.6, ptr %25, align 8, !tbaa !5
  %26 = tail call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str.6, i64 21), i32 noundef 47) #6
  %.not52 = icmp eq ptr %26, null
  %27 = getelementptr inbounds i8, ptr %26, i64 1
  %28 = select i1 %.not52, ptr getelementptr inbounds (i8, ptr @.str.6, i64 21), ptr %27
  %29 = getelementptr inbounds i8, ptr %25, i64 8
  store ptr %28, ptr %29, align 8, !tbaa !10
  %30 = tail call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %30, align 4, !tbaa !11
  %31 = tail call i32 @s2n_calculate_stacktrace() #7
  br label %87

32:                                               ; preds = %22
  %33 = getelementptr inbounds i8, ptr %0, i64 148
  %34 = load i32, ptr %33, align 4, !tbaa !46
  %35 = icmp eq i32 %34, 1
  %.035.v = select i1 %35, i64 1536, i64 1528
  %.035 = getelementptr inbounds i8, ptr %0, i64 %.035.v
  %36 = getelementptr inbounds i8, ptr %0, i64 220
  %37 = load i8, ptr %36, align 4, !tbaa !47
  %38 = icmp ult i8 %37, 33
  br i1 %38, label %39, label %42

39:                                               ; preds = %32
  %40 = tail call i32 @s2n_signature_algorithms_get_legacy_default(ptr noundef nonnull %0, i32 noundef %34, ptr noundef nonnull %.035)
  %41 = tail call zeroext i1 @s2n_result_is_ok(i32 %40)
  %not. = xor i1 %41, true
  %. = sext i1 %not. to i32
  br label %87

42:                                               ; preds = %32
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #7
  store ptr null, ptr %2, align 8, !tbaa !48
  %43 = call i32 @s2n_connection_get_signature_preferences(ptr noundef nonnull %0, ptr noundef nonnull %2) #7
  %44 = icmp sgt i32 %43, -1
  br i1 %44, label %45, label %86

45:                                               ; preds = %42
  %46 = load ptr, ptr %2, align 8, !tbaa !48
  %.not53 = icmp eq ptr %46, null
  br i1 %.not53, label %48, label %.preheader

.preheader:                                       ; preds = %45
  %47 = load i8, ptr %46, align 8, !tbaa !49
  %.not5665.not = icmp eq i8 %47, 0
  br i1 %.not5665.not, label %._crit_edge.thread, label %.lr.ph

48:                                               ; preds = %45
  %49 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str.7, ptr %49, align 8, !tbaa !5
  %50 = call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str.7, i64 21), i32 noundef 47) #6
  %.not54 = icmp eq ptr %50, null
  %51 = getelementptr inbounds i8, ptr %50, i64 1
  %52 = select i1 %.not54, ptr getelementptr inbounds (i8, ptr @.str.7, i64 21), ptr %51
  %53 = getelementptr inbounds i8, ptr %49, i64 8
  store ptr %52, ptr %53, align 8, !tbaa !10
  %54 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %54, align 4, !tbaa !11
  %55 = call i32 @s2n_calculate_stacktrace() #7
  br label %86

.lr.ph:                                           ; preds = %.preheader, %73
  %56 = phi ptr [ %75, %73 ], [ %46, %.preheader ]
  %.03667 = phi i64 [ %74, %73 ], [ 0, %.preheader ]
  %.03766 = phi ptr [ %.3.ph, %73 ], [ null, %.preheader ]
  %57 = getelementptr inbounds i8, ptr %56, i64 8
  %58 = load ptr, ptr %57, align 8, !tbaa !51
  %59 = getelementptr inbounds ptr, ptr %58, i64 %.03667
  %60 = load ptr, ptr %59, align 8, !tbaa !48
  %61 = call zeroext i1 @s2n_signature_scheme_is_valid_for_recv(ptr noundef nonnull %0, ptr noundef %60)
  br i1 %61, label %62, label %73

62:                                               ; preds = %.lr.ph
  %63 = call i32 @s2n_is_sig_scheme_valid_for_auth(ptr noundef nonnull %0, ptr noundef %60) #7
  %.not55 = icmp eq i32 %63, 0
  br i1 %.not55, label %64, label %73

64:                                               ; preds = %62
  %65 = load i16, ptr %60, align 8, !tbaa !52
  %66 = call zeroext i1 @s2n_signature_algorithm_is_supported_by_peer(ptr noundef nonnull %0, i16 noundef zeroext %65)
  br i1 %66, label %.thread62, label %67

67:                                               ; preds = %64
  %68 = icmp eq ptr %60, @s2n_ecdsa_sha1
  %69 = icmp eq ptr %60, @s2n_rsa_pkcs1_sha1
  %70 = or i1 %68, %69
  br i1 %70, label %73, label %71

71:                                               ; preds = %67
  %72 = icmp eq ptr %.03766, null
  %spec.select = select i1 %72, ptr %60, ptr %.03766
  br label %73

.thread62:                                        ; preds = %64
  store ptr %60, ptr %.035, align 8, !tbaa !48
  br label %86

73:                                               ; preds = %.lr.ph, %62, %67, %71
  %.3.ph = phi ptr [ %spec.select, %71 ], [ %60, %67 ], [ %.03766, %62 ], [ %.03766, %.lr.ph ]
  %74 = add nuw nsw i64 %.03667, 1
  %75 = load ptr, ptr %2, align 8, !tbaa !48
  %76 = load i8, ptr %75, align 8, !tbaa !49
  %77 = zext i8 %76 to i64
  %.not56 = icmp ult i64 %74, %77
  br i1 %.not56, label %.lr.ph, label %._crit_edge, !llvm.loop !54

._crit_edge:                                      ; preds = %73
  %.not57 = icmp eq ptr %.3.ph, null
  br i1 %.not57, label %._crit_edge.thread, label %78

78:                                               ; preds = %._crit_edge
  store ptr %.3.ph, ptr %.035, align 8, !tbaa !48
  br label %86

._crit_edge.thread:                               ; preds = %.preheader, %._crit_edge
  %79 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str.8, ptr %79, align 8, !tbaa !5
  %80 = call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str.8, i64 21), i32 noundef 47) #6
  %.not58 = icmp eq ptr %80, null
  %81 = getelementptr inbounds i8, ptr %80, i64 1
  %82 = select i1 %.not58, ptr getelementptr inbounds (i8, ptr @.str.8, i64 21), ptr %81
  %83 = getelementptr inbounds i8, ptr %79, i64 8
  store ptr %82, ptr %83, align 8, !tbaa !10
  %84 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 335544349, ptr %84, align 4, !tbaa !11
  %85 = call i32 @s2n_calculate_stacktrace() #7
  br label %86

86:                                               ; preds = %.thread62, %._crit_edge.thread, %78, %42, %48
  %.sroa.034.5 = phi i32 [ -1, %48 ], [ -1, %42 ], [ 0, %78 ], [ -1, %._crit_edge.thread ], [ 0, %.thread62 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #7
  br label %87

87:                                               ; preds = %24, %39, %86, %14, %3
  %.sroa.034.8 = phi i32 [ -1, %14 ], [ -1, %3 ], [ -1, %24 ], [ %.sroa.034.5, %86 ], [ %., %39 ]
  ret i32 %.sroa.034.8
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden zeroext i1 @s2n_result_is_ok(i32) local_unnamed_addr #5

declare i32 @s2n_is_sig_scheme_valid_for_auth(ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare hidden zeroext i1 @s2n_signature_algorithm_is_supported_by_peer(ptr noundef, i16 noundef zeroext) local_unnamed_addr #4

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 = { 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 #5 = { inlinehint 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}
!13 = !{!14, !7, i64 232}
!14 = !{!"s2n_connection", !12, i64 0, !12, i64 0, !12, i64 0, !12, i64 0, !12, i64 0, !12, i64 0, !12, i64 0, !12, i64 0, !12, i64 1, !12, i64 1, !12, i64 1, !12, i64 1, !12, i64 1, !12, i64 1, !12, i64 1, !12, i64 1, !12, i64 2, !12, i64 2, !12, i64 2, !12, i64 2, !12, i64 2, !12, i64 2, !12, i64 2, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !7, i64 48, !7, i64 56, !7, i64 64, !7, i64 72, !8, i64 80, !8, i64 102, !8, i64 124, !12, i64 148, !12, i64 152, !15, i64 160, !16, i64 168, !16, i64 176, !8, i64 184, !8, i64 216, !8, i64 217, !8, i64 218, !8, i64 219, !8, i64 220, !8, i64 221, !8, i64 222, !7, i64 224, !7, i64 232, !17, i64 240, !7, i64 632, !7, i64 640, !18, i64 648, !25, i64 1144, !28, i64 1688, !7, i64 1752, !8, i64 1760, !12, i64 1764, !8, i64 1768, !31, i64 1776, !31, i64 1816, !31, i64 1856, !31, i64 1896, !12, i64 1936, !16, i64 1944, !8, i64 1952, !31, i64 1960, !8, i64 2000, !8, i64 2001, !8, i64 2002, !24, i64 2003, !32, i64 2004, !32, i64 2008, !33, i64 2016, !30, i64 2208, !12, i64 2212, !30, i64 2216, !16, i64 2224, !8, i64 2232, !16, i64 2240, !16, i64 2248, !16, i64 2256, !32, i64 2264, !32, i64 2268, !8, i64 2272, !8, i64 2528, !12, i64 2784, !23, i64 2792, !12, i64 2816, !23, i64 2824, !23, i64 2848, !23, i64 2872, !35, i64 2896, !37, i64 3704, !7, i64 3760, !7, i64 3768, !8, i64 3776, !12, i64 3780, !23, i64 3784, !12, i64 3808, !39, i64 3816, !8, i64 3848, !31, i64 3992, !23, i64 4032, !23, i64 4056, !24, i64 4080, !24, i64 4081, !24, i64 4082, !30, i64 4084, !30, i64 4086, !12, i64 4088, !12, i64 4092, !23, i64 4096, !12, i64 4120, !40, i64 4128, !32, i64 4176, !8, i64 4180, !8, i64 4181}
!15 = !{!"s2n_timer", !16, i64 0}
!16 = !{!"long", !8, i64 0}
!17 = !{!"s2n_secrets", !8, i64 0, !12, i64 388}
!18 = !{!"s2n_kex_parameters", !19, i64 0, !20, i64 8, !8, i64 24, !20, i64 56, !21, i64 72, !21, i64 184, !8, i64 296, !22, i64 360, !23, i64 448, !23, i64 472}
!19 = !{!"s2n_dh_params", !7, i64 0}
!20 = !{!"s2n_ecc_evp_params", !7, i64 0, !7, i64 8}
!21 = !{!"s2n_kem_group_params", !7, i64 0, !22, i64 8, !20, i64 96}
!22 = !{!"s2n_kem_params", !7, i64 0, !23, i64 8, !23, i64 32, !23, i64 56, !24, i64 80}
!23 = !{!"s2n_blob", !7, i64 0, !12, i64 8, !12, i64 12, !12, i64 16}
!24 = !{!"_Bool", !8, i64 0}
!25 = !{!"s2n_handshake_parameters", !26, i64 0, !26, i64 48, !23, i64 96, !12, i64 120, !27, i64 124, !7, i64 384, !7, i64 392, !7, i64 400, !8, i64 408, !8, i64 440, !8, i64 472, !8, i64 473, !8, i64 474, !8, i64 506}
!26 = !{!"s2n_pkey", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40}
!27 = !{!"s2n_sig_scheme_list", !8, i64 0, !8, i64 256}
!28 = !{!"s2n_psk_parameters", !12, i64 0, !29, i64 8, !30, i64 40, !30, i64 42, !7, i64 48, !12, i64 56}
!29 = !{!"s2n_array", !23, i64 0, !12, i64 24, !12, i64 28}
!30 = !{!"short", !8, i64 0}
!31 = !{!"s2n_stuffer", !23, i64 0, !12, i64 24, !12, i64 28, !12, i64 32, !12, i64 36, !12, i64 36, !12, i64 36}
!32 = !{!"", !12, i64 0}
!33 = !{!"s2n_handshake", !31, i64 0, !7, i64 40, !8, i64 48, !8, i64 56, !8, i64 104, !8, i64 152, !12, i64 156, !12, i64 160, !12, i64 164, !12, i64 168, !34, i64 176, !12, i64 184, !12, i64 184, !12, i64 184, !12, i64 184, !12, i64 188}
!34 = !{!"s2n_offered_early_data", !7, i64 0}
!35 = !{!"s2n_client_hello", !23, i64 0, !36, i64 24, !23, i64 728, !23, i64 752, !23, i64 776, !8, i64 800, !8, i64 801, !12, i64 802, !12, i64 802, !12, i64 802, !12, i64 802, !12, i64 802, !12, i64 802, !12, i64 802}
!36 = !{!"", !8, i64 0, !23, i64 672, !30, i64 696}
!37 = !{!"s2n_x509_validator", !7, i64 0, !7, i64 8, !8, i64 16, !8, i64 17, !30, i64 18, !7, i64 24, !12, i64 32, !7, i64 40, !38, i64 48, !24, i64 52}
!38 = !{!"s2n_cert_validation_info", !12, i64 0, !12, i64 0}
!39 = !{!"s2n_ticket_fields", !23, i64 0, !12, i64 24}
!40 = !{!"s2n_post_handshake", !31, i64 0, !8, i64 40}
!41 = !{!42, !7, i64 0}
!42 = !{!"s2n_crypto_parameters", !7, i64 0, !43, i64 8, !43, i64 16, !44, i64 24, !44, i64 456, !8, i64 888, !8, i64 904, !8, i64 920, !8, i64 928}
!43 = !{!"s2n_session_key", !7, i64 0}
!44 = !{!"s2n_hmac_state", !12, i64 0, !30, i64 4, !12, i64 8, !30, i64 12, !8, i64 14, !45, i64 16, !45, i64 72, !45, i64 128, !45, i64 184, !8, i64 240, !8, i64 368}
!45 = !{!"s2n_hash_state", !7, i64 0, !12, i64 8, !8, i64 12, !16, i64 16, !8, i64 24}
!46 = !{!14, !12, i64 148}
!47 = !{!14, !8, i64 220}
!48 = !{!7, !7, i64 0}
!49 = !{!50, !8, i64 0}
!50 = !{!"s2n_signature_preferences", !8, i64 0, !7, i64 8}
!51 = !{!50, !7, i64 8}
!52 = !{!53, !30, i64 0}
!53 = !{!"s2n_signature_scheme", !30, i64 0, !7, i64 8, !12, i64 16, !12, i64 20, !8, i64 24, !8, i64 25, !30, i64 26, !7, i64 32}
!54 = distinct !{!54, !55}
!55 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass