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arc.c (write_ext_corereg_1): Delete.

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gcc/
	* config/arc/arc.c (write_ext_corereg_1): Delete.
	(arc_write_ext_corereg): Use FOR_EACH_SUBRTX.

From-SVN: r217019
This commit is contained in:
Richard Sandiford 2014-11-02 20:00:25 +00:00 • committed by Richard Sandiford
parent 36cc625486
commit 24dbe738d3
2 changed files with 23 additions and 22 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2014-11-02 Richard Sandiford <richard.sandiford@arm.com>
* config/arc/arc.c (write_ext_corereg_1): Delete.
(arc_write_ext_corereg): Use FOR_EACH_SUBRTX.
2014-11-02 Richard Sandiford <richard.sandiford@arm.com>
* config/arc/arc.c (arc600_corereg_hazard_1): Delete.

40
gcc/config/arc/arc.c
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@ -8441,34 +8441,30 @@ arc_predicate_delay_insns (void)
be hoisted out into a delay slot, a basic block can also be emptied this
way, and branch and/or fall through targets be redirected. Hence we don't
want such writes in a delay slot. */
/* Called by arc_write_ext_corereg via for_each_rtx. */
static int
write_ext_corereg_1 (rtx *xp, void *data ATTRIBUTE_UNUSED)
{
rtx x = *xp;
rtx dest;
switch (GET_CODE (x))
{
case SET: case POST_INC: case POST_DEC: case PRE_INC: case PRE_DEC:
break;
default:
/* This is also fine for PRE/POST_MODIFY, because they contain a SET. */
return 0;
}
dest = XEXP (x, 0);
if (REG_P (dest) && REGNO (dest) >= 32 && REGNO (dest) < 61)
return 1;
return 0;
}
/* Return nonzreo iff INSN writes to an extension core register. */
int
arc_write_ext_corereg (rtx insn)
{
return for_each_rtx (&PATTERN (insn), write_ext_corereg_1, 0);
subrtx_iterator::array_type array;
FOR_EACH_SUBRTX (iter, array, PATTERN (insn), NONCONST)
{
const_rtx x = *iter;
switch (GET_CODE (x))
{
case SET: case POST_INC: case POST_DEC: case PRE_INC: case PRE_DEC:
break;
default:
/* This is also fine for PRE/POST_MODIFY, because they
contain a SET. */
continue;
}
const_rtx dest = XEXP (x, 0);
if (REG_P (dest) && REGNO (dest) >= 32 && REGNO (dest) < 61)
return 1;
}
return 0;
}
/* This is like the hook, but returns NULL when it can't / won't generate