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Introduce rtx_expr_list subclass of rtx_def

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gcc/
2014-08-27  David Malcolm  <dmalcolm@redhat.com>

	* coretypes.h (class rtx_expr_list): Add forward declaration.
	* emit-rtl.c (gen_rtx_EXPR_LIST): New.
	* gengenrtl.c (special_rtx): Add EXPR_LIST.
	* rtl.h (class rtx_expr_list): New subclass of rtx_def, adding
	invariant: GET_CODE (X) == EXPR_LIST.
	(is_a_helper <rtx_expr_list *>::test): New.
	(rtx_expr_list::next): New.
	(rtx_expr_list::element): New.
	(gen_rtx_EXPR_LIST): New.

From-SVN: r214601
This commit is contained in:
David Malcolm 2014-08-27 20:30:51 +00:00 • committed by David Malcolm
parent 30db48d9d2
commit 38e60c554d
5 changed files with 58 additions and 1 deletions
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12
gcc/ChangeLog
View file

@ -1,3 +1,15 @@
2014-08-27 David Malcolm <dmalcolm@redhat.com>
* coretypes.h (class rtx_expr_list): Add forward declaration.
* emit-rtl.c (gen_rtx_EXPR_LIST): New.
* gengenrtl.c (special_rtx): Add EXPR_LIST.
* rtl.h (class rtx_expr_list): New subclass of rtx_def, adding
invariant: GET_CODE (X) == EXPR_LIST.
(is_a_helper <rtx_expr_list *>::test): New.
(rtx_expr_list::next): New.
(rtx_expr_list::element): New.
(gen_rtx_EXPR_LIST): New.
2014-08-27 David Malcolm <dmalcolm@redhat.com>
* varasm.c (mark_constants): Convert a GET_CODE check into a

1
gcc/coretypes.h
View file

@ -60,6 +60,7 @@ typedef const struct rtx_def *const_rtx;
hierarchy, along with the relevant invariant.
Where possible, keep this list in the same order as in rtl.def. */
class rtx_def;
class rtx_expr_list; /* GET_CODE (X) == EXPR_LIST */
class rtx_insn_list; /* GET_CODE (X) == INSN_LIST */
class rtx_sequence; /* GET_CODE (X) == SEQUENCE */
class rtx_insn;

7
gcc/emit-rtl.c
View file

@ -409,6 +409,13 @@ gen_raw_REG (enum machine_mode mode, int regno)
functions do the raw handling. If you add to this list, modify
special_rtx in gengenrtl.c as well. */
rtx_expr_list *
gen_rtx_EXPR_LIST (enum machine_mode mode, rtx expr, rtx expr_list)
{
return as_a <rtx_expr_list *> (gen_rtx_fmt_ee (EXPR_LIST, mode, expr,
expr_list));
}
rtx_insn_list *
gen_rtx_INSN_LIST (enum machine_mode mode, rtx insn, rtx insn_list)
{

3
gcc/gengenrtl.c
View file

@ -123,7 +123,8 @@ special_format (const char *fmt)
static int
special_rtx (int idx)
{
return (strcmp (defs[idx].enumname, "INSN_LIST") == 0
return (strcmp (defs[idx].enumname, "EXPR_LIST") == 0
|| strcmp (defs[idx].enumname, "INSN_LIST") == 0
|| strcmp (defs[idx].enumname, "CONST_INT") == 0
|| strcmp (defs[idx].enumname, "REG") == 0
|| strcmp (defs[idx].enumname, "SUBREG") == 0

36
gcc/rtl.h
View file

@ -402,6 +402,28 @@ struct GTY((desc("0"), tag("0"),
} GTY ((special ("rtx_def"), desc ("GET_CODE (&%0)"))) u;
};
/* A node for constructing singly-linked lists of rtx. */
class GTY(()) rtx_expr_list : public rtx_def
{
/* No extra fields, but adds invariant: (GET_CODE (X) == EXPR_LIST). */
public:
/* Get next in list. */
rtx_expr_list *next () const;
/* Get at the underlying rtx. */
rtx element () const;
};
template <>
template <>
inline bool
is_a_helper <rtx_expr_list *>::test (rtx rt)
{
return rt->code == EXPR_LIST;
}
class GTY(()) rtx_insn_list : public rtx_def
{
/* No extra fields, but adds invariant: (GET_CODE (X) == INSN_LIST).
@ -1233,6 +1255,19 @@ extern void rtl_check_failed_flag (const char *, const_rtx, const char *,
#define XC2EXP(RTX, N, C1, C2) (RTL_CHECKC2 (RTX, N, C1, C2).rt_rtx)
/* Methods of rtx_expr_list. */
inline rtx_expr_list *rtx_expr_list::next () const
{
rtx tmp = XEXP (this, 1);
return safe_as_a <rtx_expr_list *> (tmp);
}
inline rtx rtx_expr_list::element () const
{
return XEXP (this, 0);
}
/* Methods of rtx_insn_list. */
inline rtx_insn_list *rtx_insn_list::next () const
@ -3048,6 +3083,7 @@ get_mem_attrs (const_rtx x)
generation functions included above do the raw handling. If you
add to this list, modify special_rtx in gengenrtl.c as well. */
extern rtx_expr_list *gen_rtx_EXPR_LIST (enum machine_mode, rtx, rtx);
extern rtx_insn_list *gen_rtx_INSN_LIST (enum machine_mode, rtx, rtx);
extern rtx gen_rtx_CONST_INT (enum machine_mode, HOST_WIDE_INT);
extern rtx gen_rtx_CONST_VECTOR (enum machine_mode, rtvec);