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reload.c (reload_inner_reg_of_subreg): Return 1 for PLUS.

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* reload.c (reload_inner_reg_of_subreg): Return 1 for PLUS.
	(push_reload): Handle non-REG in reload_inner_reg_of_subreg case.

From-SVN: r42843
This commit is contained in:
Richard Kenner 2001-06-04 01:58:24 +00:00 committed by Richard Kenner
parent b91455de3d
commit 35fb60c476
2 changed files with 20 additions and 9 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Sun Jun 3 21:59:51 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* reload.c (reload_inner_reg_of_subreg): Return 1 for PLUS.
(push_reload): Handle non-REG in reload_inner_reg_of_subreg case.
2001-06-03 kaz Kojima <kkojima@rr.iij4u.or.jp>
* gcc/config/sh/sh.c (print_operand_address, print_operand): Call

24
gcc/reload.c
View File

@ -690,6 +690,7 @@ find_valid_class (m1, n)
combine. P_IN points to the corresponding value of IN, which can be
modified by this function.
DONT_SHARE is nonzero if we can't share any input-only reload for IN. */
static int
find_reusable_reload (p_in, out, class, type, opnum, dont_share)
rtx *p_in, out;
@ -780,8 +781,8 @@ reload_inner_reg_of_subreg (x, mode)
inner = SUBREG_REG (x);
/* If INNER is a constant, then INNER must be reloaded. */
if (CONSTANT_P (inner))
/* If INNER is a constant or PLUS, then INNER must be reloaded. */
if (CONSTANT_P (inner) || GET_CODE (inner) == PLUS)
return 1;
/* If INNER is not a hard register, then INNER will not need to
@ -1030,18 +1031,23 @@ push_reload (in, out, inloc, outloc, class,
if (in != 0 && reload_inner_reg_of_subreg (in, inmode))
{
enum reg_class in_class = class;
if (GET_CODE (SUBREG_REG (in)) == REG)
in_class
= find_valid_class (inmode,
subreg_regno_offset (REGNO (SUBREG_REG (in)),
GET_MODE (SUBREG_REG (in)),
SUBREG_BYTE (in),
GET_MODE (in)));
/* This relies on the fact that emit_reload_insns outputs the
instructions for input reloads of type RELOAD_OTHER in the same
order as the reloads. Thus if the outer reload is also of type
RELOAD_OTHER, we are guaranteed that this inner reload will be
output before the outer reload. */
push_reload (SUBREG_REG (in), NULL_RTX, &SUBREG_REG (in), (rtx*)0,
find_valid_class (inmode,
subreg_regno_offset (REGNO (SUBREG_REG (in)),
GET_MODE (SUBREG_REG (in)),
SUBREG_BYTE (in),
GET_MODE (in))),
VOIDmode, VOIDmode, 0, 0, opnum, type);
push_reload (SUBREG_REG (in), NULL_RTX, &SUBREG_REG (in), NULL_RTX,
in_class, VOIDmode, VOIDmode, 0, 0, opnum, type);
dont_remove_subreg = 1;
}