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From: "hjl dot tools at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/35466] Different assembly codes on 32bit and 64bit hosts
Date: Wed, 05 Mar 2008 04:28:00 -0000 [thread overview]
Message-ID: <20080305042712.25528.qmail@sourceware.org> (raw)
In-Reply-To: <bug-35466-682@http.gcc.gnu.org/bugzilla/>
------- Comment #1 from hjl dot tools at gmail dot com 2008-03-05 04:27 -------
The difference comes from tree_expand_cfg pass:
[hjl@gnu-9 stage1-gcc]$ diff -up 32/x.i.132r.expand 64
--- 32/x.i.132r.expand 2008-03-04 20:25:21.000000000 -0800
+++ 64/x.i.132r.expand 2008-03-04 20:25:12.000000000 -0800
@@ -5,20 +5,18 @@
;; Generating RTL for tree basic block 2
;; <retval> = 1234123412341234.123412341234
-(insn 6 5 7 x.i:3 (set (subreg:TI (reg:TD 59) 0)
- (mem/u/c:TI (symbol_ref/u:SI ("*.LC0") [flags 0x2]) [0 S16 A128])) -1
(nil))
-
-(insn 7 6 8 x.i:3 (set (reg:TI 60)
- (subreg:TI (reg:TD 59) 0)) -1 (nil))
+(insn 6 5 7 x.i:3 (set (reg:TI 59)
+ (mem/u/c/i:TI (symbol_ref/u:SI ("*.LC0") [flags 0x2]) [0 S16 A128]))
-1 (expr_list:REG_EQUAL (const_double 4404704354742567410 [0x3d20a746050c01f2]
3470023512955869132 [0x3028000003fcd7cc] 0 [0x0] 0 [0x0])
+ (nil)))
-(insn 8 7 0 x.i:3 (set (mem/c/i:TI (reg/f:SI 58 [ D.1355 ]) [0 <result>+0 S16
A128])
- (reg:TI 60)) -1 (nil))
+(insn 7 6 0 x.i:3 (set (mem/c/i:TI (reg/f:SI 58 [ D.1370 ]) [0 <result>+0 S16
A128])
+ (reg:TI 59)) -1 (nil))
;; return <retval>
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35466
next prev parent reply other threads:[~2008-03-05 4:28 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-05 4:13 [Bug target/35466] New: " hjl dot tools at gmail dot com
2008-03-05 4:28 ` hjl dot tools at gmail dot com [this message]
2008-03-05 7:40 ` [Bug target/35466] " steven at gcc dot gnu dot org
2008-03-05 7:50 ` pinskia at gcc dot gnu dot org
2008-03-06 9:44 ` rguenth at gcc dot gnu dot org
2008-03-06 13:33 ` jsm28 at gcc dot gnu dot org
2008-03-06 13:39 ` rguenth at gcc dot gnu dot org
2008-03-06 13:52 ` jsm28 at gcc dot gnu dot org
2009-04-07 16:52 ` info dot gnu at rt-labs dot com
2009-04-08 6:07 ` hp at gcc dot gnu dot org
2009-09-17 9:41 ` ubizjak at gmail dot com
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