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From: "hp at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/45051] [4.6 Regression]: gcc.c-torture/execute/builtins/abs-2.c and abs-3.c due to "track subwords of DImode allocnos"
Date: Sat, 24 Jul 2010 03:03:00 -0000 [thread overview]
Message-ID: <20100724030258.32246.qmail@sourceware.org> (raw)
In-Reply-To: <bug-45051-507@http.gcc.gnu.org/bugzilla/>
------- Comment #3 from hp at gcc dot gnu dot org 2010-07-24 03:02 -------
--- good:r162417/abs-2.s Sat Jul 24 03:13:36 2010
+++ bad:r162418/abs-2.s Sat Jul 24 03:15:53 2010
@@ -9,27 +9,27 @@ _main_test:
move $srp,[$sp]
subu.b 84,$sp
movem $r8,[$sp]
- clear.d $r4
- clear.d $r5
- move.b 1,$r4
- move.d $r4,[$sp+76]
- move.d $r5,[$sp+80]
+ clear.d $r0 ; (set (reg:SI r0) (const_int 0))
+ clear.d $r1
+ move.b 1,$r0 ; (set (strict_low_part:QI (reg:SI r0)) (const_int 1))
+ move.d $r0,[$sp+76]
+ move.d $r1,[$sp+80]
moveq -1,$r12
move.d $r12,[$sp+68]
move.d $r12,[$sp+72]
- clear.d $r10
- move.d $r4,$r11
- move.d $r11,$r8
- move.d -2147483648,$r0
- move.d $r11,[$sp+60]
- move.d $r10,[$sp+64]
- move.d 2147483647,$r11
+ move.d $r0,$r10
+ move.d -2147483648,$r11
+ move.d $r10,[$sp+60]
+ move.d $r11,[$sp+64]
+ clear.b $r0 ; (set (strict_low_part:QI (reg:SI r9)) (const_int 0))
+ move.d $r0,$r9 ; (set (reg:SI r9) (reg:SI r0))
+ move.d 2147483647,$r0
move.d $r12,[$sp+52]
- move.d $r11,[$sp+56]
- move.d $r8,[$sp+44]
- move.d $r0,[$sp+48]
+ move.d $r9,[$sp+56] ; stored here
+ move.d $r10,[$sp+44]
+ move.d $r11,[$sp+48]
move.d $r12,[$sp+36]
- move.d $r11,[$sp+40]
+ move.d $r0,[$sp+40]
move.d [$sp+52],$r12
move.d [$sp+56],$r13 ; loaded here
test.d $r12 ; fatally tested below; containing 0, expected 0x7fffffff
--
hp at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-07-24 03:02:58
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45051
next prev parent reply other threads:[~2010-07-24 3:03 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-24 2:43 [Bug rtl-optimization/45051] New: " hp at gcc dot gnu dot org
2010-07-24 2:46 ` [Bug rtl-optimization/45051] " hp at gcc dot gnu dot org
2010-07-24 2:51 ` hp at gcc dot gnu dot org
2010-07-24 3:03 ` hp at gcc dot gnu dot org [this message]
2010-07-27 9:35 ` bernds at gcc dot gnu dot org
2010-07-27 21:49 ` bernds at gcc dot gnu dot org
2010-09-21 21:26 ` hp at gcc dot gnu dot org
[not found] <bug-45051-4@http.gcc.gnu.org/bugzilla/>
2010-12-22 16:23 ` ibolton at gcc dot gnu.org
2010-12-23 1:56 ` hp at gcc dot gnu.org
2010-12-23 14:29 ` hp at gcc dot gnu.org
2011-01-03 19:58 ` rguenth at gcc dot gnu.org
2011-01-03 20:01 ` rguenth at gcc dot gnu.org
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