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expmed.c (store_bit_field): Use simplify_gen_subreg to make SUBREG so we avoid SUBREGing memory.

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* expmed.c (store_bit_field): Use simplify_gen_subreg to make
        SUBREG so we avoid SUBREGing memory.

From-SVN: r46721
This commit is contained in:
Aldy Hernandez 2001-11-02 22:07:29 +00:00 • committed by Aldy Hernandez
parent c9e8cb32e3
commit bb33f166a5
2 changed files with 6 additions and 6 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2001-11-02 Aldy Hernandez <aldyh@redhat.com>
* expmed.c (store_bit_field): Use simplify_gen_subreg to make
SUBREG so we avoid SUBREGing memory.
2001-11-02 DJ Delorie <dj@redhat.com>
* config/rs6000/rs6000.c (rs6000_emit_move): Make sure that

7
gcc/expmed.c
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@ -638,12 +638,7 @@ store_bit_field (str_rtx, bitsize, bitnum, fieldmode, value, align, total_size)
if we must narrow it, be sure we do it correctly. */
if (GET_MODE_SIZE (GET_MODE (value)) < GET_MODE_SIZE (maxmode))
{
/* Avoid making subreg of a subreg, or of a mem. */
if (GET_CODE (value1) != REG)
value1 = copy_to_reg (value1);
value1 = gen_rtx_SUBREG (maxmode, value1, 0);
}
value1 = simplify_gen_subreg (maxmode, value1, GET_MODE (value1), 0);
else
value1 = gen_lowpart (maxmode, value1);
}