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// PR tree-opt/28937

// PR tree-opt/28937

// Complete unroll forgot to update the statement usage

// Complete unroll forgot to update the statement usage

// which meant we ICEd in add_virtual_operand.

// which meant we ICEd in add_virtual_operand.

// { dg-do compile }

// { dg-do compile }

// { dg-options "-O2" }

// { dg-options "-O2" }

class SHA256

class SHA256

{

{

  unsigned m_digest;

  unsigned m_digest;

  unsigned long long m_count;

  unsigned long long m_count;

  unsigned char _buffer[64];

  unsigned char _buffer[64];

  static void Transform (unsigned * data);

  static void Transform (unsigned * data);

  void WriteByteBlock (unsigned t);

  void WriteByteBlock (unsigned t);

};

};

void SHA256::WriteByteBlock (unsigned t)

void SHA256::WriteByteBlock (unsigned t)

{

{

  unsigned data32[16];

  unsigned data32[16];

  Transform (data32);

  Transform (data32);

  unsigned long long lenInBits = m_count;

  unsigned long long lenInBits = m_count;

  if (t != (64 - 8))

  if (t != (64 - 8))

    return;

    return;

  for (int i = 0; i < 2; i++)

  for (int i = 0; i < 2; i++)

          _buffer[t++] = (unsigned char)lenInBits;

          _buffer[t++] = (unsigned char)lenInBits;

}

}