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(store_fixed_bit_field): Adjust BITPOS so that it 

fits inside MODE before adjusting OFFSET to get an aligned address.

From-SVN: r6658
This commit is contained in:
Jim Wilson 1994-02-27 14:46:49 -08:00
parent a5f00f07f1
commit 3bd98790b0
1 changed files with 10 additions and 0 deletions
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10
gcc/expmed.c
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@ -569,6 +569,16 @@ store_fixed_bit_field (op0, offset, bitsize, bitpos, value, struct_align)
total_bits = GET_MODE_BITSIZE (mode);
/* Make sure bitpos is valid for the chosen mode. Adjust BITPOS to
be be in the range 0 to total_bits-1, and put any excess bytes in
OFFSET. */
if (bitpos >= total_bits)
{
offset += (bitpos / total_bits) * (total_bits / BITS_PER_UNIT);
bitpos -= ((bitpos / total_bits) * (total_bits / BITS_PER_UNIT)
* BITS_PER_UNIT);
}
/* Get ref to an aligned byte, halfword, or word containing the field.
Adjust BITPOS to be position within a word,
and OFFSET to be the offset of that word.