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expmed.c (store_bit_field): Ignore adjustment to bitpos and use bitnum to decide about register move. 

* expmed.c (store_bit_field): Ignore adjustment to bitpos
        and use bitnum to decide about register move.

From-SVN: r45215
This commit is contained in:
Roman Zippel 2001-08-27 22:43:37 +00:00 committed by Richard Henderson
parent a224278b11
commit f21bdd05bd
2 changed files with 8 additions and 3 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2001-08-27 Roman Zippel <zippel@linux-m68k.org>
* expmed.c (store_bit_field): Ignore adjustment to bitpos
and use bitnum to decide about register move.
2001-08-27 Richard Henderson <rth@redhat.com>
* genattr.c (main): Emit state_t even when not doing scheduling.

6
gcc/expmed.c
View File

@ -350,14 +350,14 @@ store_bit_field (str_rtx, bitsize, bitnum, fieldmode, value, align, total_size)
done with a simple store. For targets that support fast unaligned
memory, any naturally sized, unit aligned field can be done directly. */
if (bitsize == GET_MODE_BITSIZE (fieldmode)
if (bitnum == 0
&& bitsize == GET_MODE_BITSIZE (fieldmode)
&& (GET_CODE (op0) != MEM
? (GET_MODE_SIZE (fieldmode) >= UNITS_PER_WORD
|| GET_MODE_SIZE (GET_MODE (op0)) == GET_MODE_SIZE (fieldmode))
: (! SLOW_UNALIGNED_ACCESS (fieldmode, align)
|| (offset * BITS_PER_UNIT % bitsize == 0
&& align % GET_MODE_BITSIZE (fieldmode) == 0)))
&& (BYTES_BIG_ENDIAN ? bitpos + bitsize == unit : bitpos == 0))
&& align % GET_MODE_BITSIZE (fieldmode) == 0))))
{
if (GET_MODE (op0) != fieldmode)
{