public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
From: "ramana at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/42509] [4.5 Regression] bootstrap failure in stage3 (integer overflow in preprocessor expression)
Date: Thu, 01 Apr 2010 15:55:00 -0000	[thread overview]
Message-ID: <20100401155539.787.qmail@sourceware.org> (raw)
In-Reply-To: <bug-42509-11764@http.gcc.gnu.org/bugzilla/>



------- Comment #12 from ramana at gcc dot gnu dot org  2010-04-01 15:55 -------
I see this on arm-eabi cross with gcc version 4.5.0 20100401 (experimental)
[trunk revision 157899] (GCC) 

With the following command line options -

./xgcc -B`pwd` -S -O2 -mthumb -mcpu=cortex-a9 -mfpu=vfpv3-d16 ~/expr.i -da -g


In 203r.sched2 I see the following insn sequence which appears to be wrong to
my naked eye. 


(insn 5045 1929 5046 167 /home/ramrad01/trunk/libcpp/expr.c:1281 (set (reg:SI 1
r1)
        (plus:SI (reg/f:SI 13 sp)
            (const_int 272 [0x110]))) 4 {*arm_addsi3} (nil))

(insn:TI 5046 5045 6004 167 /home/ramrad01/trunk/libcpp/expr.c:1281 (set
(reg:DI 0 r0)
        (mem/c:DI (reg:SI 1 r1) [87 %sfp S8 A64])) 587 {*thumb2_movdi_vfp}
(nil))

(insn 6004 5046 5042 167 /home/ramrad01/trunk/libcpp/expr.c:1281 (parallel [
            (set (reg:SI 3 r3 [+4 ])
                (const_int 0 [0x0]))
            (clobber (reg:CC 24 cc))
        ]) 704 {*thumb2_movsi_shortim} (expr_list:REG_UNUSED (reg:CC 24 cc)
        (nil)))

(insn:TI 5042 6004 6002 167 /home/ramrad01/trunk/libcpp/expr.c:1281 (set
(mem/c:SI (plus:SI (reg/f:SI 13 sp)
                (const_int 272 [0x110])) [87 %sfp+-544 S4 A64])
        (reg:SI 14 lr)) 585 {*thumb2_movsi_vfp} (expr_list:REG_DEAD (reg:SI 14
lr)
        (nil)))

(insn:TI 6002 5042 6003 167 /home/ramrad01/trunk/libcpp/expr.c:1281 (parallel [
            (set (reg:SI 3 r3 [+4 ])
                (and:SI (reg:SI 3 r3 [+4 ])
                    (reg:SI 1 r1 [+4 ])))
            (clobber (reg:CC 24 cc))
        ]) 700 {*thumb2_alusi3_short} (expr_list:REG_DEAD (reg:SI 1 r1 [+4 ])
        (expr_list:REG_UNUSED (reg:CC 24 cc)
            (nil))))


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42509


  parent reply	other threads:[~2010-04-01 15:55 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-12-26 12:03 [Bug target/42509] New: " doko at ubuntu dot com
2009-12-29 10:09 ` [Bug target/42509] " ramana at gcc dot gnu dot org
2009-12-30 23:55 ` ramana at gcc dot gnu dot org
2009-12-31 15:21 ` [Bug target/42509] [4.5 Regression] " rguenth at gcc dot gnu dot org
2010-01-06 12:26 ` ramana at gcc dot gnu dot org
2010-01-07 13:53 ` debian-gcc at lists dot debian dot org
2010-03-15 13:23 ` rguenth at gcc dot gnu dot org
2010-03-15 17:36 ` laurent at guerby dot net
2010-03-16  8:57 ` ramana at gcc dot gnu dot org
2010-03-16 13:56 ` rguenth at gcc dot gnu dot org
2010-04-01 15:03 ` rearnsha at gcc dot gnu dot org
2010-04-01 15:11 ` rearnsha at gcc dot gnu dot org
2010-04-01 15:32 ` rearnsha at gcc dot gnu dot org
2010-04-01 15:55 ` ramana at gcc dot gnu dot org [this message]
2010-04-01 17:11 ` ramana at gcc dot gnu dot org
2010-04-01 19:31 ` rearnsha at gcc dot gnu dot org
2010-04-01 22:04 ` rearnsha at gcc dot gnu dot org
2010-04-01 22:44 ` rearnsha at gcc dot gnu dot org
2010-04-01 23:34 ` [Bug middle-end/42509] " rearnsha at gcc dot gnu dot org
2010-04-02  0:02 ` ramana at gcc dot gnu dot org
2010-04-02  8:08 ` ramana at gcc dot gnu dot org
2010-04-02 12:09 ` rguenth at gcc dot gnu dot org
2010-04-02 12:15 ` rguenth at gcc dot gnu dot org
2010-04-02 12:33 ` rguenth at gcc dot gnu dot org
2010-04-02 13:54 ` rguenth at gcc dot gnu dot org
2010-04-02 15:20 ` rguenth at gcc dot gnu dot org
2010-04-02 16:15 ` rguenth at gcc dot gnu dot org
2010-04-03 17:15 ` rguenth at gcc dot gnu dot org
2010-04-03 17:15 ` rguenth at gcc dot gnu dot org
2010-04-12 19:56 ` [Bug middle-end/42509] [4.4 " steven at gcc dot gnu dot org
2010-04-12 19:58 ` [Bug middle-end/42509] [4.4 Regression] nonoverlapping_memrefs_p misinterprets NULL MEM_OFFSET as const0_rtx steven at gcc dot gnu dot org
2010-04-30  8:58 ` jakub at gcc dot gnu dot org
2010-07-28 18:00 ` uweigand at gcc dot gnu dot org
2010-07-28 18:01 ` uweigand at gcc dot gnu dot org

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20100401155539.787.qmail@sourceware.org \
    --to=gcc-bugzilla@gcc.gnu.org \
    --cc=gcc-bugs@gcc.gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).