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GNU Info (gcc-295.info)RTL DeclarationsDeclarations ============ Declaration expression codes do not represent arithmetic operations but rather state assertions about their operands. `(strict_low_part (subreg:M (reg:N R) 0))' This expression code is used in only one context: as the destination operand of a `set' expression. In addition, the operand of this expression must be a non-paradoxical `subreg' expression. The presence of `strict_low_part' says that the part of the register which is meaningful in mode N, but is not part of mode M, is not to be altered. Normally, an assignment to such a subreg is allowed to have undefined effects on the rest of the register when M is less than a word. automatically generated by info2www version 1.2.2.9 |