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From: "uros at kss-loka dot si" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/16111] generates invalid SSE movdqa instruction (instead of movaps)
Date: Tue, 21 Dec 2004 15:25:00 -0000 [thread overview]
Message-ID: <20041221152523.27205.qmail@sourceware.org> (raw)
In-Reply-To: <20040621114206.16111.djp@volny.cz>
------- Additional Comments From uros at kss-loka dot si 2004-12-21 15:25 -------
Does life analysis eat RTLs with -O2?
This part is from pr16111_.cpp.15.cse2:
...
(note 8 7 13 0 NOTE_INSN_FUNCTION_BEG)
(insn 13 8 16 0 (set (mem/i:SI (plus:SI (reg/f:SI 20 frame)
(const_int -4 [0xfffffffc])) [5 MASK+0 S4 A32])
(const_int -2147483648 [0x80000000])) 35 {*movsi_1} (nil)
(nil))
(insn 16 13 17 0 (set (reg:SF 73)
(mem:SF (plus:SI (reg/f:SI 20 frame)
(const_int -4 [0xfffffffc])) [7 S4 A32])) 60 {*movsf_1} (nil)
(nil))
(insn 17 16 21 0 (set (mem/i:SF (plus:SI (reg/f:SI 20 frame)
(const_int -8 [0xfffffff8])) [7 __F+0 S4 A32])
(reg:SF 73)) 60 {*movsf_1} (nil)
(nil))
...
And in pr16111_.cpp.16.life, (insn 13) is just missing. There is no
NOTE_INSN_DELETED, just plain nothing:
...
(note 8 7 16 0 NOTE_INSN_FUNCTION_BEG)
(insn 16 8 17 0 (set (reg:SF 73)
(mem:SF (plus:SI (reg/f:SI 20 frame)
(const_int -4 [0xfffffffc])) [7 S4 A32])) 60 {*movsf_1} (nil)
(nil))
(insn 17 16 21 0 (set (mem/i:SF (plus:SI (reg/f:SI 20 frame)
(const_int -8 [0xfffffff8])) [7 __F+0 S4 A32])
(reg:SF 73)) 60 {*movsf_1} (insn_list:REG_DEP_TRUE 16 (nil))
(expr_list:REG_DEAD (reg:SF 73)
(nil)))
...
Uros.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2004-12-21 15:25:19
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16111
next prev parent reply other threads:[~2004-12-21 15:25 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-21 11:42 [Bug translation/16111] New: " djp at volny dot cz
2004-06-21 15:09 ` [Bug target/16111] " bangerth at dealii dot org
2004-06-21 16:34 ` pinskia at gcc dot gnu dot org
2004-06-21 17:18 ` djp at volny dot cz
2004-06-21 17:40 ` pinskia at gcc dot gnu dot org
2004-07-25 17:35 ` drober32 at fau dot edu
2004-09-21 12:53 ` coyote at coyotegulch dot com
2004-12-21 3:41 ` pinskia at gcc dot gnu dot org
2004-12-21 6:42 ` uros at kss-loka dot si
2004-12-21 15:25 ` uros at kss-loka dot si [this message]
2004-12-28 6:33 ` uros at kss-loka dot si
2004-12-29 0:32 ` rth at gcc dot gnu dot org
2004-12-29 0:35 ` pinskia at gcc dot gnu dot org
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