[Bug tree-optimization/44674] New: [4.5/4.6 Regression] ICE: in refs_may_alias_p_1, at tree-ssa-alias.c:953 with -fprofile-generate

[Bug tree-optimization/44674] New: [4.5/4.6 Regression] ICE: in refs_may_alias_p_1, at tree-ssa-alias.c:953 with -fprofile-generate

[zsojka at seznam dot cz]

Command line:
$ gcc -O -fprofile-generate testcase.c

Compiler output:
$ gcc -O -fprofile-generate testcase.c
testcase.c: In function 'jumpfunc':
testcase.c:2:1: internal compiler error: in refs_may_alias_p_1, at
tree-ssa-alias.c:953
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions:
r161383 - crash
r161170 - crash
r153685 - crash
4.5 r160526 - crash
4.4 r160770 - OK (with checking)


-- 
           Summary: [4.5/4.6 Regression] ICE: in refs_may_alias_p_1, at
                    tree-ssa-alias.c:953 with -fprofile-generate
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: zsojka at seznam dot cz
  GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44674

[Bug tree-optimization/44674] [4.5/4.6 Regression] ICE: in refs_may_alias_p_1, at tree-ssa-alias.c:953 with -fprofile-generate

[zsojka at seznam dot cz]

------- Comment #1 from zsojka at seznam dot cz  2010-06-25 22:29 -------
Created an attachment (id=21010)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21010&action=view)
reduced testcase (from gcc.c-torture/compile/pr42559.c)

Command line:
$ gcc -O -fprofile-generate pr44674.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44674

[Bug tree-optimization/44674] [4.5/4.6 Regression] ICE: in refs_may_alias_p_1, at tree-ssa-alias.c:953 with -fprofile-generate

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.5.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44674

[Bug tree-optimization/44674] [4.5/4.6 Regression] ICE: in refs_may_alias_p_1, at tree-ssa-alias.c:953 with -fprofile-generate

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2010-06-26 11:53 -------
I have a patch.


-- 

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 11:53:20
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44674

[Bug tree-optimization/44674] [4.5/4.6 Regression] ICE: in refs_may_alias_p_1, at tree-ssa-alias.c:953 with -fprofile-generate

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2010-06-26 13:25 -------
Subject: Bug 44674

Author: rguenth
Date: Sat Jun 26 13:24:57 2010
New Revision: 161431

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=161431
Log:
2010-06-26  Richard Guenther  <rguenther@suse.de>

        PR middle-end/44674
        * tree-ssa-alias.c (refs_may_alias_p_1): Allow all kind of
        decls.  Handle LABEL_DECLs like FUNCTION_DECLs.

        * gcc.dg/pr44674.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/pr44674.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-alias.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44674

[Bug tree-optimization/44674] [4.5/4.6 Regression] ICE: in refs_may_alias_p_1, at tree-ssa-alias.c:953 with -fprofile-generate

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2010-06-26 13:32 -------
Subject: Bug 44674

Author: rguenth
Date: Sat Jun 26 13:32:17 2010
New Revision: 161432

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=161432
Log:
2010-06-26  Richard Guenther  <rguenther@suse.de>

        PR middle-end/44674
        * tree-ssa-alias.c (refs_may_alias_p_1): Allow all kind of
        decls.  Handle LABEL_DECLs like FUNCTION_DECLs.

        * gcc.dg/pr44674.c: New testcase.

Added:
    branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/pr44674.c
Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_5-branch/gcc/tree-ssa-alias.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44674

[Bug tree-optimization/44674] [4.5/4.6 Regression] ICE: in refs_may_alias_p_1, at tree-ssa-alias.c:953 with -fprofile-generate

[rguenth at gcc dot gnu dot org]

------- Comment #5 from rguenth at gcc dot gnu dot org  2010-06-26 13:33 -------
Fixed.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
           Keywords|                            |ice-on-valid-code
      Known to fail|                            |4.5.0
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44674