gcc/testsuite/gcc.dg/torture/pr55888.c

   1 /* { dg-do compile } */
   2
   3 typedef unsigned _GCC_ATTR_ALIGN_u32t;
   4 typedef _GCC_ATTR_ALIGN_u32t _Uint32t __attribute__ ((__aligned__ (4)));
   5 typedef unsigned int _GCC_ATTR_ALIGN_u8t __attribute__ ((__mode__ (__QI__)));
   6 typedef _GCC_ATTR_ALIGN_u8t _Uint8t __attribute__ ((__aligned__ (1)));
   7 typedef unsigned _Sizet;
   8 typedef _Sizet size_t;
   9 typedef _Uint8t uint8_t;
  10 typedef _Uint32t uint32_t;
  11 typedef enum
  12 {
  13   PROTOBUF_C_LABEL_REQUIRED, PROTOBUF_C_LABEL_OPTIONAL,
  14     PROTOBUF_C_LABEL_REPEATED
  15 }
  16 ProtobufCLabel;
  17 typedef enum
  18 {
  19   PROTOBUF_C_TYPE_INT32, PROTOBUF_C_TYPE_SINT32, PROTOBUF_C_TYPE_SFIXED32,
  20     PROTOBUF_C_TYPE_INT64, PROTOBUF_C_TYPE_SINT64, PROTOBUF_C_TYPE_SFIXED64,
  21     PROTOBUF_C_TYPE_UINT32, PROTOBUF_C_TYPE_FIXED32, PROTOBUF_C_TYPE_UINT64,
  22     PROTOBUF_C_TYPE_FIXED64, PROTOBUF_C_TYPE_FLOAT, PROTOBUF_C_TYPE_DOUBLE,
  23     PROTOBUF_C_TYPE_BOOL, PROTOBUF_C_TYPE_ENUM, PROTOBUF_C_TYPE_STRING,
  24     PROTOBUF_C_TYPE_BYTES, PROTOBUF_C_TYPE_MESSAGE,
  25 }
  26 ProtobufCType;
  27 typedef struct _ProtobufCBinaryData ProtobufCBinaryData;
  28 struct _ProtobufCBinaryData
  29 {
  30   size_t len;
  31 };
  32 typedef struct _ProtobufCMessageDescriptor ProtobufCMessageDescriptor;
  33 typedef struct _ProtobufCFieldDescriptor ProtobufCFieldDescriptor;
  34 typedef struct _ProtobufCMessage ProtobufCMessage;
  35 struct _ProtobufCFieldDescriptor
  36 {
  37   uint32_t id;
  38   ProtobufCLabel label;
  39   ProtobufCType type;
  40   unsigned offset;
  41 };
  42 struct _ProtobufCMessageDescriptor
  43 {
  44   unsigned n_fields;
  45   const ProtobufCFieldDescriptor *fields;
  46 };
  47 struct _ProtobufCMessage
  48 {
  49   const ProtobufCMessageDescriptor *descriptor;
  50 };
  51 typedef enum
  52 {
  53   PROTOBUF_C_WIRE_TYPE_VARINT, PROTOBUF_C_WIRE_TYPE_64BIT,
  54     PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED, PROTOBUF_C_WIRE_TYPE_START_GROUP,
  55     PROTOBUF_C_WIRE_TYPE_END_GROUP, PROTOBUF_C_WIRE_TYPE_32BIT
  56 }
  57 ProtobufCWireType;
  58 static inline size_t
  59 uint32_pack (uint32_t value, uint8_t * out)
  60 {
  61   unsigned rv = 0;
  62   if (value >= 0x80)
  63     {
  64       if (value >= 0x80)
  65         {
  66           value >>= 7;
  67         }
  68     }
  69   out[rv++] = value;
  70 }
  71
  72 static inline size_t
  73 binary_data_pack (const ProtobufCBinaryData * bd, uint8_t * out)
  74 {
  75   size_t len = bd->len;
  76   size_t rv = uint32_pack (len, out);
  77   return rv + len;
  78 }
  79
  80 static size_t
  81 required_field_pack (const ProtobufCFieldDescriptor * field,
  82                      const void *member, uint8_t * out)
  83 {
  84   size_t rv = tag_pack (field->id, out);
  85   switch (field->type)
  86     {
  87     case PROTOBUF_C_TYPE_BYTES:
  88       {
  89         const ProtobufCBinaryData *bd =
  90           ((const ProtobufCBinaryData *) member);
  91         out[0] |= PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED;
  92         return rv + binary_data_pack (bd, out + rv);
  93       }
  94     case PROTOBUF_C_TYPE_MESSAGE:
  95       {
  96         out[0] |= PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED;
  97         return rv +
  98           prefixed_message_pack (*(ProtobufCMessage * const *) member,
  99                                  out + rv);
 100       }
 101     }
 102 }
 103
 104 size_t
 105 protobuf_c_message_pack (const ProtobufCMessage * message, uint8_t * out)
 106 {
 107   unsigned i;
 108   size_t rv = 0;
 109   for (i = 0; i < message->descriptor->n_fields; i++)
 110     {
 111       const ProtobufCFieldDescriptor *field = message->descriptor->fields + i;
 112       const void *member = ((const char *) message) + field->offset;
 113       if (field->label == PROTOBUF_C_LABEL_REQUIRED)
 114         rv += required_field_pack (field, member, out + rv);
 115     }
 116 }