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recog.c (constrain_operands): Prefer exact match over reloadable EXTRA_MEMORY_CONSTRAINT or...

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* recog.c (constrain_operands): Prefer exact match over reloadable
	EXTRA_MEMORY_CONSTRAINT or EXTRA_ADDRESS_CONSTRAINT.

	* reload.c (find_reloads): Always reload EXTRA_ADDRESS_CONSTRAINT
	operands in Pmode.

From-SVN: r59308
This commit is contained in:
Ulrich Weigand 2002-11-20 17:05:08 +00:00 committed by Ulrich Weigand
parent 3ebb998e6f
commit 3ba2436a67
3 changed files with 25 additions and 13 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2002-11-20 Ulrich Weigand <uweigand@de.ibm.com>
* recog.c (constrain_operands): Prefer exact match over reloadable
EXTRA_MEMORY_CONSTRAINT or EXTRA_ADDRESS_CONSTRAINT.
* reload.c (find_reloads): Always reload EXTRA_ADDRESS_CONSTRAINT
operands in Pmode.
2002-11-20  Eric Botcazou  <ebotcazou@libertysurf.fr>
PR c/8518

26
gcc/recog.c
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@ -2628,23 +2628,23 @@ constrain_operands (strict)
if (EXTRA_MEMORY_CONSTRAINT (c))
{
/* Every memory operand can be reloaded to fit,
so copy the condition from the 'm' case. */
if (GET_CODE (op) == MEM
/* Before reload, accept what reload can turn into mem. */
|| (strict < 0 && CONSTANT_P (op))
/* During reload, accept a pseudo */
|| (reload_in_progress && GET_CODE (op) == REG
&& REGNO (op) >= FIRST_PSEUDO_REGISTER))
/* Every memory operand can be reloaded to fit. */
if (strict < 0 && GET_CODE (op) == MEM)
win = 1;
/* Before reload, accept what reload can turn into mem. */
if (strict < 0 && CONSTANT_P (op))
win = 1;
/* During reload, accept a pseudo */
if (reload_in_progress && GET_CODE (op) == REG
&& REGNO (op) >= FIRST_PSEUDO_REGISTER)
win = 1;
}
if (EXTRA_ADDRESS_CONSTRAINT (c))
{
/* Every address operand can be reloaded to fit,
so copy the condition from the 'p' case. */
if (strict <= 0
|| (strict_memory_address_p (recog_data.operand_mode[opno],
op)))
/* Every address operand can be reloaded to fit. */
if (strict < 0)
win = 1;
}
#endif

4
gcc/reload.c
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@ -3283,6 +3283,10 @@ find_reloads (insn, replace, ind_levels, live_known, reload_reg_p)
the address into a base register. */
this_alternative[i] = (int) MODE_BASE_REG_CLASS (VOIDmode);
badop = 0;
/* Address constraints are reloaded in Pmode, no matter
what mode is given in the machine description. */
operand_mode[i] = Pmode;
break;
}