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From: "hjl.tools at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/47725] [x32] error: unable to find a register to spill in class DIREG
Date: Mon, 14 Feb 2011 01:08:00 -0000 [thread overview]
Message-ID: <bug-47725-4-AlBDcG5jFF@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-47725-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47725
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ebotcazou at gcc dot
| |gnu.org
--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2011-02-14 01:07:41 UTC ---
Combine changes
(insn 2 4 3 2 (set (reg/v/f:DI 59 [ pc_target ])
(zero_extend:DI (reg:SI 5 di [ pc_target ]))) u.i:9 115
{*zero_extendsidi2_rex64}
(expr_list:REG_DEAD (reg:SI 5 di [ pc_target ])
(nil)))
...
(insn 11 10 14 2 (parallel [
(set (reg:DI 64)
(const_int 0 [0]))
(set (reg/f:DI 62)
(plus:DI (ashift:DI (reg:DI 64)
(const_int 3 [0x3]))
(reg/f:DI 60)))
(set (mem/s/c:BLK (reg/f:DI 60) [0 context+0 S72 A64])
(const_int 0 [0]))
(use (reg:DI 63))
(use (reg:DI 64))
]) u.i:11 874 {*rep_stosdi_rex64}
(expr_list:REG_DEAD (reg:DI 63)
(expr_list:REG_UNUSED (reg:DI 64)
(expr_list:REG_UNUSED (reg/f:DI 62)
(nil)))))
(insn 14 11 16 2 (set (mem/s/f/c:SI (plus:DI (reg/f:DI 20 frame)
(const_int -8 [0xfffffffffffffff8])) [3 context.ra+0 S4 A64])
(subreg/s/u:SI (reg/v/f:DI 59 [ pc_target ]) 0)) u.i:12 64
{*movsi_internal}
(expr_list:REG_DEAD (reg/v/f:DI 59 [ pc_target ])
(nil)))
to
(insn 11 10 14 2 (parallel [
(set (reg:DI 64)
(const_int 0 [0]))
(set (reg/f:DI 62)
(plus:DI (ashift:DI (reg:DI 64)
(const_int 3 [0x3]))
(reg/f:DI 60)))
(set (mem/s/c:BLK (reg/f:DI 60) [0 context+0 S72 A64])
(const_int 0 [0]))
(use (reg:DI 63))
(use (reg:DI 64))
]) u.i:11 874 {*rep_stosdi_rex64}
(expr_list:REG_DEAD (reg:DI 63)
(expr_list:REG_UNUSED (reg:DI 64)
(expr_list:REG_UNUSED (reg/f:DI 62)
(nil)))))
(insn 14 11 16 2 (set (mem/s/f/c:SI (plus:DI (reg/f:DI 20 frame)
(const_int -8 [0xfffffffffffffff8])) [3 context.ra+0 S4 A64])
(reg:SI 5 di [ pc_target ])) u.i:12 64 {*movsi_internal}
(expr_list:REG_DEAD (reg:SI 5 di [ pc_target ])
(nil)))
Since *rep_stosdi_rex64 needs the RDI register, it kills
reload. Eric, should combine move hard register?
next prev parent reply other threads:[~2011-02-14 1:07 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-14 1:07 [Bug target/47725] New: " hjl.tools at gmail dot com
2011-02-14 1:08 ` hjl.tools at gmail dot com [this message]
2011-02-14 1:31 ` [Bug target/47725] " hjl.tools at gmail dot com
2011-02-14 3:18 ` [Bug middle-end/47725] " hjl.tools at gmail dot com
2011-02-14 8:16 ` ebotcazou at gcc dot gnu.org
2011-02-14 14:08 ` hjl.tools at gmail dot com
2011-02-14 14:21 ` hjl.tools at gmail dot com
2011-02-14 19:01 ` hjl at gcc dot gnu.org
2011-02-14 19:43 ` hjl.tools at gmail dot com
2011-02-15 17:28 ` hjl at gcc dot gnu.org
2011-02-15 20:30 ` hjl at gcc dot gnu.org
2011-02-16 20:22 ` hjl at gcc dot gnu.org
2011-03-18 0:45 ` hjl at gcc dot gnu.org
2011-03-18 5:00 ` hjl at gcc dot gnu.org
2011-04-02 6:04 ` hjl at gcc dot gnu.org
2011-04-02 6:05 ` hjl at gcc dot gnu.org
2011-06-20 14:54 ` hjl at gcc dot gnu.org
2011-06-20 16:02 ` ebotcazou at gcc dot gnu.org
2011-06-20 17:04 ` hjl at gcc dot gnu.org
2011-07-22 6:02 ` pbone at csse dot unimelb.edu.au
2011-07-22 6:07 ` pbone at csse dot unimelb.edu.au
2011-07-28 17:03 ` ubizjak at gmail dot com
2011-07-28 17:07 ` ubizjak at gmail dot com
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