public final AlignmentSpecifierContext alignmentSpecifier() throws RecognitionException {
		AlignmentSpecifierContext _localctx = new AlignmentSpecifierContext(_ctx, getState());
		enterRule(_localctx, 92, RULE_alignmentSpecifier);
		try {
			setState(698);
			switch ( getInterpreter().adaptivePredict(_input,55,_ctx) ) {
			case 1:
				enterOuterAlt(_localctx, 1);
				{
				setState(688); match(Alignas);
				setState(689); match(LeftParen);
				setState(690); typeName();
				setState(691); match(RightParen);
				}
				break;

			case 2:
				enterOuterAlt(_localctx, 2);
				{
				setState(693); match(Alignas);
				setState(694); match(LeftParen);
				setState(695); constantExpression();
				setState(696); match(RightParen);
				}
				break;
			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}