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* [Bug regression/61516] New: [4.10 Regression]: build fails on auto-inc-dec.c or libgcc2.c with obvious patch
@ 2014-06-15 23:36 hp at gcc dot gnu.org
  2014-06-16  0:00 ` [Bug regression/61516] " hp at gcc dot gnu.org
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: hp at gcc dot gnu.org @ 2014-06-15 23:36 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61516

            Bug ID: 61516
           Summary: [4.10 Regression]: build fails on auto-inc-dec.c or
                    libgcc2.c with obvious patch
           Product: gcc
           Version: 4.10.0
               URL: http://gcc.gnu.org/ml/gcc-patches/2014-06/msg01200.htm
                    l
            Status: UNCONFIRMED
          Keywords: build, ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: regression
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hp at gcc dot gnu.org
                CC: rsandifo at gcc dot gnu.org
              Host: x86_64-unknown-linux-gnu
            Target: cris-axis-elf

Created attachment 32945
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=32945&action=edit
cc1 -fpreprocessed libgcc2.i -g -O2 -fbuilding-libgcc -fno-stack-protector
-fvisibility=hidden -o libgcc2.s

A patch in the revision range (last_known_working:first_known_failing)
(211677:211684) caused the build for cris-elf (and likely all autoincdec
targets) to fail as follows:


/tmp/hpautotest-gcc0/gcc/gcc/auto-inc-dec.c
/tmp/hpautotest-gcc0/gcc/gcc/auto-inc-dec.c: In function 'void
merge_in_block(int, basic_block_def*)':
/tmp/hpautotest-gcc0/gcc/gcc/auto-inc-dec.c:1442: error: 'uid'
was not declared in this scope
make[2]: *** [auto-inc-dec.o] Error 1

With the patch in the referenced URL, the breakage is moved to building libgcc:

/expvol/pp_slask/hp/break0615/tmp/break0615/gccobj/./gcc/xgcc
-B/expvol/pp_slask/hp/break0615/tmp/break0615/gccobj/./gcc/ -nostdinc
-B/expvol/pp_slask/hp/break0615/tmp/break0615/gccobj/cris-elf/newlib/ -isystem
/expvol/pp_slask/hp/break0615/tmp/break0615/gccobj/cris-elf/newlib/targ-include
-isystem /expvol/pp_slask/hp/break0615/tmp/break0615/gcc/newlib/libc/include
-B/expvol/pp_slask/hp/break0615/tmp/break0615/gccobj/cris-elf/libgloss/cris
-L/expvol/pp_slask/hp/break0615/tmp/break0615/gccobj/cris-elf/libgloss/libnosys
-L/expvol/pp_slask/hp/break0615/tmp/break0615/gcc/libgloss/cris
-B/expvol/pp_slask/hp/break0615/tmp/break0615/pre/cris-elf/bin/
-B/expvol/pp_slask/hp/break0615/tmp/break0615/pre/cris-elf/lib/ -isystem
/expvol/pp_slask/hp/break0615/tmp/break0615/pre/cris-elf/include -isystem
/expvol/pp_slask/hp/break0615/tmp/break0615/pre/cris-elf/sys-include    -g -O2
-march=v8 -mbest-lib-options -O2  -g -O2 -DIN_GCC  -DCROSS_DIRECTORY_STRUCTURE 
-W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definition  -isystem ./include   -g -DIN_LIBGCC2 -fbuilding-libgcc
-fno-stack-protector -Dinhibit_libc  -I. -I. -I../../.././gcc
-I/expvol/pp_slask/hp/break0615/tmp/break0615/gcc/libgcc
-I/expvol/pp_slask/hp/break0615/tmp/break0615/gcc/libgcc/.
-I/expvol/pp_slask/hp/break0615/tmp/break0615/gcc/libgcc/../gcc
-I/expvol/pp_slask/hp/break0615/tmp/break0615/gcc/libgcc/../include 
-DHAVE_CC_TLS -DUSE_EMUTLS -o __gcc_bcmp.o -MT __gcc_bcmp.o -MD -MP -MF
__gcc_bcmp.dep -DL__gcc_bcmp -c
/expvol/pp_slask/hp/break0615/tmp/break0615/gcc/libgcc/libgcc2.c
-fvisibility=hidden -DHIDE_EXPORTS
/expvol/pp_slask/hp/break0615/tmp/break0615/gcc/libgcc/libgcc2.c: In function
'__gcc_bcmp':
/expvol/pp_slask/hp/break0615/tmp/break0615/gcc/libgcc/libgcc2.c:2105:1:
internal compiler error: Segmentation fault
 }
 ^
0x9179b5 crash_signal
    /expvol/pp_slask/hp/break0615/tmp/break0615/gcc/gcc/toplev.c:337
0xbe23d0 merge_in_block
    /expvol/pp_slask/hp/break0615/tmp/break0615/gcc/gcc/auto-inc-dec.c:1427
0xbe23d0 execute
    /expvol/pp_slask/hp/break0615/tmp/break0615/gcc/gcc/auto-inc-dec.c:1522
Please submit a full bug report,
with preprocessed source if appropriate.


A gdb session shows that the segv is on line 1427:
          FOR_EACH_INSN_INFO_DEF (def, insn_info)
            {
=>            reg_next_use[DF_REF_REGNO (def)] = NULL;
              reg_next_inc_use[DF_REF_REGNO (def)] = NULL;
              reg_next_def[DF_REF_REGNO (def)] = insn;
            }

(gdb) p def
$5 = (df_ref) 0xafafafafafafafaf
(gdb) p *insn_info
$6 = {insn = 0x0, defs = 0xafafafafafafafaf, uses = 0xafafafafafafafaf,
  eq_uses = 0xafafafafafafafaf, mw_hardregs = 0xafafafafafafafaf,
  luid = -1347440721}
(gdb)

Preprocessed code is attached.

Author of suspect patches in revision range CC:ed.


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug regression/61516] [4.10 Regression]: build fails on auto-inc-dec.c or libgcc2.c with obvious patch
  2014-06-15 23:36 [Bug regression/61516] New: [4.10 Regression]: build fails on auto-inc-dec.c or libgcc2.c with obvious patch hp at gcc dot gnu.org
@ 2014-06-16  0:00 ` hp at gcc dot gnu.org
  2014-06-16  1:39 ` dje at gcc dot gnu.org
                   ` (3 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: hp at gcc dot gnu.org @ 2014-06-16  0:00 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61516

--- Comment #1 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
Also,

(gdb) p insn
$7 = (rtx) 0x7ffff7bc13c0
(gdb) pr
(insn/v 54 53 55 4 (set (reg/v/f:SI 50 [ s2 ])
        (plus:SI (reg/v/f:SI 50 [ s2 ])
            (const_int 1 [0x1])))
/expvol/pp_slask/hp/break0615/tmp/break0615/gcc/libgcc/libgcc2.c:2099 74
{*addsi3_non\
_v32}
     (nil))


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug regression/61516] [4.10 Regression]: build fails on auto-inc-dec.c or libgcc2.c with obvious patch
  2014-06-15 23:36 [Bug regression/61516] New: [4.10 Regression]: build fails on auto-inc-dec.c or libgcc2.c with obvious patch hp at gcc dot gnu.org
  2014-06-16  0:00 ` [Bug regression/61516] " hp at gcc dot gnu.org
@ 2014-06-16  1:39 ` dje at gcc dot gnu.org
  2014-06-16  7:40 ` rsandifo at gcc dot gnu.org
                   ` (2 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: dje at gcc dot gnu.org @ 2014-06-16  1:39 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61516

David Edelsohn <dje at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|cris-axis-elf               |cris-axis-elf, powerpc*-*-*
           Priority|P3                          |P1
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-06-16
                 CC|                            |dje at gcc dot gnu.org
               Host|x86_64-unknown-linux-gnu    |x86_64-unknown-linux-gnu,
                   |                            |powerpc*-*-*
     Ever confirmed|0                           |1
           Severity|normal                      |blocker

--- Comment #2 from David Edelsohn <dje at gcc dot gnu.org> ---
Bootstrap failure. Fails on PPC AIX also, probably PPC Linux.


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug regression/61516] [4.10 Regression]: build fails on auto-inc-dec.c or libgcc2.c with obvious patch
  2014-06-15 23:36 [Bug regression/61516] New: [4.10 Regression]: build fails on auto-inc-dec.c or libgcc2.c with obvious patch hp at gcc dot gnu.org
  2014-06-16  0:00 ` [Bug regression/61516] " hp at gcc dot gnu.org
  2014-06-16  1:39 ` dje at gcc dot gnu.org
@ 2014-06-16  7:40 ` rsandifo at gcc dot gnu.org
  2014-06-16  7:41 ` rsandifo at gcc dot gnu.org
  2014-06-16  8:24 ` rguenth at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: rsandifo at gcc dot gnu.org @ 2014-06-16  7:40 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61516

--- Comment #3 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> ---
Author: rsandifo
Date: Mon Jun 16 07:40:17 2014
New Revision: 211694

URL: https://gcc.gnu.org/viewcvs?rev=211694&root=gcc&view=rev
Log:
gcc/
    PR bootstrap/61516
    * auto-inc-dec.c (merge_in_block): Fix location of insn_info
    initialization.  Replace remaining use of uid.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/auto-inc-dec.c


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug regression/61516] [4.10 Regression]: build fails on auto-inc-dec.c or libgcc2.c with obvious patch
  2014-06-15 23:36 [Bug regression/61516] New: [4.10 Regression]: build fails on auto-inc-dec.c or libgcc2.c with obvious patch hp at gcc dot gnu.org
                   ` (2 preceding siblings ...)
  2014-06-16  7:40 ` rsandifo at gcc dot gnu.org
@ 2014-06-16  7:41 ` rsandifo at gcc dot gnu.org
  2014-06-16  8:24 ` rguenth at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: rsandifo at gcc dot gnu.org @ 2014-06-16  7:41 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61516

rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #4 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> ---
Patch applied.


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug regression/61516] [4.10 Regression]: build fails on auto-inc-dec.c or libgcc2.c with obvious patch
  2014-06-15 23:36 [Bug regression/61516] New: [4.10 Regression]: build fails on auto-inc-dec.c or libgcc2.c with obvious patch hp at gcc dot gnu.org
                   ` (3 preceding siblings ...)
  2014-06-16  7:41 ` rsandifo at gcc dot gnu.org
@ 2014-06-16  8:24 ` rguenth at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-06-16  8:24 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61516

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.10.0


^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2014-06-16  8:24 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2014-06-15 23:36 [Bug regression/61516] New: [4.10 Regression]: build fails on auto-inc-dec.c or libgcc2.c with obvious patch hp at gcc dot gnu.org
2014-06-16  0:00 ` [Bug regression/61516] " hp at gcc dot gnu.org
2014-06-16  1:39 ` dje at gcc dot gnu.org
2014-06-16  7:40 ` rsandifo at gcc dot gnu.org
2014-06-16  7:41 ` rsandifo at gcc dot gnu.org
2014-06-16  8:24 ` rguenth at gcc dot gnu.org

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