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Richard Kenner c6dc70d681 (BYTE_LOAD_EXTEND, LOAD_EXTEND): New macros.
(subst, simplify_and_const_int, nonzero_bits, num_sign_bit_copies): Use them.
(subst, case SET): Make a SIGN_EXTEND instead of paradoxical SUBREG if
BYTE_LOADS_SIGN_EXTEND; previously only made ZERO_EXTEND.

From-SVN: r3160
1993-01-08 17:26:25 -05:00
gcc (BYTE_LOAD_EXTEND, LOAD_EXTEND): New macros. 1993-01-08 17:26:25 -05:00