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({store,extract}_bit_field): Don't use bitfield insn if OP0 is

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register and bitfield spans it.

From-SVN: r7837
This commit is contained in:
Richard Kenner 1994-07-30 18:09:27 -04:00
parent 311b7cd795
commit 39e0911f45
1 changed files with 12 additions and 3 deletions
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15
gcc/expmed.c
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@ -369,7 +369,10 @@ store_bit_field (str_rtx, bitsize, bitnum, fieldmode, value, align, total_size)
&& !(bitsize == 1 && GET_CODE (value) == CONST_INT)
/* Ensure insv's size is wide enough for this field. */
&& (GET_MODE_BITSIZE (insn_operand_mode[(int) CODE_FOR_insv][3])
>= bitsize))
>= bitsize)
&& ! ((GET_CODE (op0) == REG || GET_CODE (op0) == SUBREG)
&& (bitsize + bitpos
> GET_MODE_BITSIZE (insn_operand_mode[(int) CODE_FOR_insv][3]))))
{
int xbitpos = bitpos;
rtx value1;
@ -972,7 +975,10 @@ extract_bit_field (str_rtx, bitsize, bitnum, unsignedp,
#ifdef HAVE_extzv
if (HAVE_extzv
&& (GET_MODE_BITSIZE (insn_operand_mode[(int) CODE_FOR_extzv][0])
>= bitsize))
>= bitsize)
&& ! ((GET_CODE (op0) == REG || GET_CODE (op0) == SUBREG)
&& (bitsize + bitpos
> GET_MODE_BITSIZE (insn_operand_mode[(int) CODE_FOR_extzv][0]))))
{
int xbitpos = bitpos, xoffset = offset;
rtx bitsize_rtx, bitpos_rtx;
@ -1111,7 +1117,10 @@ extract_bit_field (str_rtx, bitsize, bitnum, unsignedp,
#ifdef HAVE_extv
if (HAVE_extv
&& (GET_MODE_BITSIZE (insn_operand_mode[(int) CODE_FOR_extv][0])
>= bitsize))
>= bitsize)
&& ! ((GET_CODE (op0) == REG || GET_CODE (op0) == SUBREG)
&& (bitsize + bitpos
> GET_MODE_BITSIZE (insn_operand_mode[(int) CODE_FOR_extv][0]))))
{
int xbitpos = bitpos, xoffset = offset;
rtx bitsize_rtx, bitpos_rtx;