[Bug middle-end/44684] New: [4.6 regression] FAIL: g++.dg/opt/pmf1.C

[Bug middle-end/44684] New: [4.6 regression] FAIL: g++.dg/opt/pmf1.C

[hjl dot tools at gmail dot com]

On Linux/x86, revision 161433 gave

FAIL: g++.dg/opt/pmf1.C (internal compiler error)
FAIL: g++.dg/opt/pmf1.C (test for excess errors)

/export/gnu/import/git/gcc-eas/gcc/testsuite/g++.dg/opt/pmf1.C:75:1: internal
compiler error: in refs_may_alias_p_1, at tree-ssa-alias.c:812^M
Please submit a full bug report,^M
with preprocessed source if appropriate.^M
See <http://gcc.gnu.org/bugs.html> for instructions.^M

Revision 161428 is OK.


-- 
           Summary: [4.6 regression] FAIL: g++.dg/opt/pmf1.C
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hjl dot tools at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44684

[Bug middle-end/44684] [4.6 regression] FAIL: g++.dg/opt/pmf1.C

[hjl dot tools at gmail dot com]

------- Comment #1 from hjl dot tools at gmail dot com  2010-06-26 18:44 -------
It may be caused by revision 161431:

http://gcc.gnu.org/ml/gcc-cvs/2010-06/msg01349.html


-- 

hjl dot tools at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rguenth at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44684

[Bug middle-end/44684] [4.6 regression] FAIL: g++.dg/opt/pmf1.C

[hjl dot tools at gmail dot com]

------- Comment #2 from hjl dot tools at gmail dot com  2010-06-26 18:57 -------
Since the patch is backported to 4.5 branch. This bug
may also impact 4.5.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44684

[Bug middle-end/44684] [4.6 regression] FAIL: g++.dg/opt/pmf1.C

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2010-06-26 21:46 -------
Huh, I did test -m32 and didn't see this.  4.5 is affected only with
checking enabled.

Mine.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rguenth at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-06-26 21:46:35
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44684

[Bug middle-end/44684] [4.6 regression] FAIL: g++.dg/opt/pmf1.C

[hjl dot tools at gmail dot com]

------- Comment #4 from hjl dot tools at gmail dot com  2010-06-26 23:28 -------
On Linux/x86-64, revision 161432 failed to compile SPEC CPU 2006
with similar error:

g++ -c -o XercesXPath.o -DSPEC_CPU -DNDEBUG  -DAPP_NO_THREADS
-DXALAN_INMEM_MSG_LOADER -I. -Ixercesc -Ixercesc/dom -Ixercesc/dom/impl
-Ixercesc/sax -Ixercesc/util/MsgLoaders/InMemory
-Ixercesc/util/Transcoders/Iconv -Ixalanc/include -DPROJ_XMLPARSER
-DPROJ_XMLUTIL -DPROJ_PARSERS -DPROJ_SAX4C -DPROJ_SAX2 -DPROJ_DOM
-DPROJ_VALIDATORS -DXML_USE_NATIVE_TRANSCODER -DXML_USE_INMEM_MESSAGELOADER 
-O2 -ffast-math   -DSPEC_CPU_LP64  -DSPEC_CPU_LINUX     XercesXPath.cpp
g++ -c -o XPath.o -DSPEC_CPU -DNDEBUG  -DAPP_NO_THREADS
-DXALAN_INMEM_MSG_LOADER -I. -Ixercesc -Ixercesc/dom -Ixercesc/dom/impl
-Ixercesc/sax -Ixercesc/util/MsgLoaders/InMemory
-Ixercesc/util/Transcoders/Iconv -Ixalanc/include -DPROJ_XMLPARSER
-DPROJ_XMLUTIL -DPROJ_PARSERS -DPROJ_SAX4C -DPROJ_SAX2 -DPROJ_DOM
-DPROJ_VALIDATORS -DXML_USE_NATIVE_TRANSCODER -DXML_USE_INMEM_MESSAGELOADER 
-O2 -ffast-math   -DSPEC_CPU_LP64  -DSPEC_CPU_LINUX     XPath.cpp
...
XPath.cpp:5696:1: internal compiler error: in refs_may_alias_p_1, at
tree-ssa-alias.c:812
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

g++ -c -o messageoutput.o -DSPEC_CPU -DNDEBUG    -O2 -ffast-math  
-DSPEC_CPU_LP64       messageoutput.cpp
...
messageoutput.cpp:1126:1: internal compiler error: in refs_may_alias_p_1, at
tree-ssa-alias.c:812
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44684

[Bug middle-end/44684] [4.6 regression] FAIL: g++.dg/opt/pmf1.C

[rguenth at gcc dot gnu dot org]

------- Comment #5 from rguenth at gcc dot gnu dot org  2010-06-27 08:11 -------
Subject: Bug 44684

Author: rguenth
Date: Sun Jun 27 08:10:45 2010
New Revision: 161456

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=161456
Log:
2010-06-27  Richard Guenther  <rguenther@suse.de>

        PR middle-end/44684
        * tree-ssa-alias.c (refs_may_alias_p_1): Allow SSA name refs.
        (stmt_may_clobber_ref_p_1): Do not bother to call the oracle
        for register LHS.  Or non-store assignments.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-ssa-alias.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44684

[Bug middle-end/44684] [4.6 regression] FAIL: g++.dg/opt/pmf1.C

[rguenth at gcc dot gnu dot org]

------- Comment #6 from rguenth at gcc dot gnu dot org  2010-06-27 08:14 -------
Subject: Bug 44684

Author: rguenth
Date: Sun Jun 27 08:14:41 2010
New Revision: 161457

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=161457
Log:
2010-06-27  Richard Guenther  <rguenther@suse.de>

        PR middle-end/44684
        * tree-ssa-alias.c (refs_may_alias_p_1): Allow SSA name refs.
        (stmt_may_clobber_ref_p_1): Do not bother to call the oracle
        for register LHS.  Or non-store assignments.

Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/tree-ssa-alias.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44684

[Bug middle-end/44684] [4.5/4.6 regression] FAIL: g++.dg/opt/pmf1.C

[rguenth at gcc dot gnu dot org]

------- Comment #7 from rguenth at gcc dot gnu dot org  2010-06-27 08:19 -------
Fixed.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED
            Summary|[4.6 regression] FAIL:      |[4.5/4.6 regression] FAIL:
                   |g++.dg/opt/pmf1.C           |g++.dg/opt/pmf1.C
   Target Milestone|---                         |4.5.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44684