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expmed.c (store_bit_field): Add offset unconditionally for memory targets.

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2005-11-14  Dale Johannesen  <dalej@apple.com>

        * expmed.c (store_bit_field):  Add offset unconditionally for
        memory targets.
        (extract_bit_field):  Don't force extzv or extv operand into
        a register if field is too big.

From-SVN: r106919
This commit is contained in:
Dale Johannesen 2005-11-15 00:45:55 +00:00 committed by Dale Johannesen
parent 53acd3845f
commit 69498c64a3
2 changed files with 22 additions and 8 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2005-11-14 Dale Johannesen <dalej@apple.com>
* expmed.c (store_bit_field): Add offset unconditionally for
memory targets.
(extract_bit_field): Don't force extzv or extv operand into
a register if field is too big.
2005-11-14 Daniel Jacobowitz <dan@codesourcery.com> 2005-11-14 Daniel Jacobowitz <dan@codesourcery.com>
* config/arm/arm.c (pic_labelno): New. * config/arm/arm.c (pic_labelno): New.

15
gcc/expmed.c
View File

@ -429,15 +429,12 @@ store_bit_field (rtx str_rtx, unsigned HOST_WIDE_INT bitsize,
: (! SLOW_UNALIGNED_ACCESS (fieldmode, MEM_ALIGN (op0)) : (! SLOW_UNALIGNED_ACCESS (fieldmode, MEM_ALIGN (op0))
|| (offset * BITS_PER_UNIT % bitsize == 0 || (offset * BITS_PER_UNIT % bitsize == 0
&& MEM_ALIGN (op0) % GET_MODE_BITSIZE (fieldmode) == 0)))) && MEM_ALIGN (op0) % GET_MODE_BITSIZE (fieldmode) == 0))))
{
if (GET_MODE (op0) != fieldmode)
{ {
if (MEM_P (op0)) if (MEM_P (op0))
op0 = adjust_address (op0, fieldmode, offset); op0 = adjust_address (op0, fieldmode, offset);
else else if (GET_MODE (op0) != fieldmode)
op0 = simplify_gen_subreg (fieldmode, op0, GET_MODE (op0), op0 = simplify_gen_subreg (fieldmode, op0, GET_MODE (op0),
byte_offset); byte_offset);
}
emit_move_insn (op0, value); emit_move_insn (op0, value);
return value; return value;
} }
@ -1410,6 +1407,11 @@ extract_bit_field (rtx str_rtx, unsigned HOST_WIDE_INT bitsize,
xbitpos = bitnum % unit; xbitpos = bitnum % unit;
xop0 = adjust_address (xop0, bestmode, xoffset); xop0 = adjust_address (xop0, bestmode, xoffset);
/* Make sure register is big enough for the whole field. */
if (xoffset * BITS_PER_UNIT + unit
< offset * BITS_PER_UNIT + bitsize)
goto extzv_loses;
/* Fetch it to a register in that size. */ /* Fetch it to a register in that size. */
xop0 = force_reg (bestmode, xop0); xop0 = force_reg (bestmode, xop0);
@ -1539,6 +1541,11 @@ extract_bit_field (rtx str_rtx, unsigned HOST_WIDE_INT bitsize,
xbitpos = bitnum % unit; xbitpos = bitnum % unit;
xop0 = adjust_address (xop0, bestmode, xoffset); xop0 = adjust_address (xop0, bestmode, xoffset);
/* Make sure register is big enough for the whole field. */
if (xoffset * BITS_PER_UNIT + unit
< offset * BITS_PER_UNIT + bitsize)
goto extv_loses;
/* Fetch it to a register in that size. */ /* Fetch it to a register in that size. */
xop0 = force_reg (bestmode, xop0); xop0 = force_reg (bestmode, xop0);