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(-)gcc/gimple-ssa-store-merging.c.jj (-1 / +2 lines)
Lines 3948-3954 mem_valid_for_store_merging (tree mem, p Link Here
3948
  if (known_eq (bitregion_end, 0U))
3948
  if (known_eq (bitregion_end, 0U))
3949
    {
3949
    {
3950
      bitregion_start = round_down_to_byte_boundary (bitpos);
3950
      bitregion_start = round_down_to_byte_boundary (bitpos);
3951
      bitregion_end = round_up_to_byte_boundary (bitpos + bitsize);
3951
      bitregion_end = bitpos;
3952
      bitregion_end = round_up_to_byte_boundary (bitregion_end + bitsize);
3952
    }
3953
    }
3953
3954
3954
  if (offset != NULL_TREE)
3955
  if (offset != NULL_TREE)

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