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From: "amodra at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/65779] [5/6 Regression] undefined local symbol on powerpc [regression]
Date: Fri, 17 Apr 2015 02:13:00 -0000	[thread overview]
Message-ID: <bug-65779-4-gbSFTK3CWl@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-65779-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65779

--- Comment #3 from Alan Modra <amodra at gmail dot com> ---
Re comment #1, insn 36 is not removed, but moved later to bb3

(insn 363 364 41 3 (set (reg/v:SI 0 0 [orig:239 s2 ] [239])                     
        (lshiftrt:SI (reg/v:SI 3 3 [orig:265 adler ] [265])                     
            (const_int 16 [0x10]))) 270 {lshrsi3}                               
     (nil))                                                                     
(debug_insn 41 363 42 3 (var_location:SI s2 (reg/v:SI 0 0 [orig:239 s2 ]
[239])\
) -1                                                                            
     (nil))

The trouble is that the original debug insn is not removed.  We still have
(debug_insn 37 35 39 2 (var_location:SI s2 (reg/v:SI 0 0 [orig:239 s2 ]
[239]))\

../../../../../../../../../rtems/c/src/lib/libbsp/powerpc/motorola_powerpc/boo\
tloader/../../../powerpc/shared/bootloader/zlib.c:2083 -1                       
     (nil))                                                                     
but this is not valid.  s2 does *not* live in reg:SI 0 at this point.


  parent reply	other threads:[~2015-04-17  2:13 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-15 21:45 [Bug target/65779] New: undefined local symbol on powerpc joel at gcc dot gnu.org
2015-04-16  7:39 ` [Bug target/65779] [5 Regression] undefined local symbol on powerpc [regression] rguenth at gcc dot gnu.org
2015-04-16 14:00 ` [Bug target/65779] [5/6 " jakub at gcc dot gnu.org
2015-04-17  1:51 ` amodra at gmail dot com
2015-04-17  2:13 ` amodra at gmail dot com [this message]
2015-04-17  5:26 ` [Bug debug/65779] " amodra at gmail dot com
2015-04-17  7:28 ` jakub at gcc dot gnu.org
2015-04-22 11:58 ` jakub at gcc dot gnu.org
2015-06-30 10:20 ` rguenth at gcc dot gnu.org
2015-07-16  9:16 ` rguenth at gcc dot gnu.org
2015-10-08 23:55 ` pangbw at gmail dot com
2015-10-09 23:47 ` pangbw at gmail dot com
2015-10-15 14:31 ` segher at gcc dot gnu.org

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