[Bug middle-end/41047] New: gcc.target/mips/memcpy-1.c failing

[Bug middle-end/41047] New: gcc.target/mips/memcpy-1.c failing

[nemet at gcc dot gnu dot org]

See http://gcc.gnu.org/ml/gcc-testresults/2009-08/msg01279.html

Seems like we losing alignment on string literals again (PR/27226).  The
testcase is from dhrystone.


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           Summary: gcc.target/mips/memcpy-1.c failing
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: nemet at gcc dot gnu dot org
GCC target triplet: mips64*-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41047

[Bug middle-end/41047] gcc.target/mips/memcpy-1.c failing

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2009-08-12 17:54 -------
Is that a recent regression?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41047

[Bug middle-end/41047] gcc.target/mips/memcpy-1.c failing

[anemet at caviumnetworks dot com]

------- Comment #2 from anemet at caviumnetworks dot com  2009-08-12 18:08 -------
Subject:  gcc.target/mips/memcpy-1.c failing

rguenth at gcc dot gnu dot org writes:
> Is that a recent regression?

Last 12 days.  Guerby has results from 7/30 that don't show this.

Adam


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41047

[Bug middle-end/41047] gcc.target/mips/memcpy-1.c failing

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2009-08-12 18:54 -------
We used to get

  memcpy (&c, &"12345678"[2], 6); [tail call]
  memcpy (&c, "123456", 6); [tail call]

for expansion, but now we get

  D.2386_1 = (const void * restrict) "123456";
  c.1_2 = (void * restrict) &c;
  memcpy (c.1_2, D.2386_1, 6); [tail call]

and

  D.2383_1 = (const void * restrict) "12345678";
  D.2384_2 = D.2383_1 + 2;
  c.0_3 = (void * restrict) &c;
  memcpy (c.0_3, D.2384_2, 6); [tail call]

it's probably me that caused this - will have a look and add a target
independent testcase.


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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         |2009-08-12 18:54:55
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41047

[Bug middle-end/41047] gcc.target/mips/memcpy-1.c failing

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2009-08-12 20:10 -------
Created an attachment (id=18345)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18345&action=view)
patch

Fix I am testing.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41047

[Bug middle-end/41047] [4.5 Regression] gcc.target/mips/memcpy-1.c failing

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |missed-optimization
            Summary|gcc.target/mips/memcpy-1.c  |[4.5 Regression]
                   |failing                     |gcc.target/mips/memcpy-1.c
                   |                            |failing
   Target Milestone|---                         |4.5.0
            Version|4.4.0                       |4.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41047

[Bug middle-end/41047] [4.5 Regression] gcc.target/mips/memcpy-1.c failing

[rguenth at gcc dot gnu dot org]

------- Comment #5 from rguenth at gcc dot gnu dot org  2009-08-12 21:20 -------
Created an attachment (id=18346)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18346&action=view)
good patch

better patch, the old one missed the tree-ssa.c hunk and the testcase was
broken.


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rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #18345|0                           |1
        is obsolete|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41047

[Bug middle-end/41047] [4.5 Regression] gcc.target/mips/memcpy-1.c failing

[nemet at gcc dot gnu dot org]

------- Comment #6 from nemet at gcc dot gnu dot org  2009-08-12 21:27 -------
It fixes the testcase on mips64octeon-linux.  Thanks.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41047

[Bug middle-end/41047] [4.5 Regression] gcc.target/mips/memcpy-1.c failing

[rguenth at gcc dot gnu dot org]

------- Comment #7 from rguenth at gcc dot gnu dot org  2009-08-13 08:19 -------
Subject: Bug 41047

Author: rguenth
Date: Thu Aug 13 08:19:10 2009
New Revision: 150715

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=150715
Log:
2009-08-13  Richard Guenther  <rguenther@suse.de>

        PR middle-end/41047
        * tree-ssa-ccp.c (ccp_fold): When folding pointer additions
        use the constant pointer type.
        * gimplify.c (canonicalize_addr_expr): Canonicalize independent
        of CV qualifiers on the target pointer type.
        * tree-ssa.c (useless_type_conversion_p): Move incomplete pointer
        conversion check before restrict check.

        * gcc.dg/tree-ssa/ssa-ccp-27.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-27.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimplify.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-ccp.c
    trunk/gcc/tree-ssa.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41047

[Bug middle-end/41047] [4.5 Regression] gcc.target/mips/memcpy-1.c failing

[rguenth at gcc dot gnu dot org]

------- Comment #8 from rguenth at gcc dot gnu dot org  2009-08-13 08:38 -------
FIxed.


-- 

rguenth at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41047

[Bug middle-end/41047] [4.5 Regression] gcc.target/mips/memcpy-1.c failing

[hjl at gcc dot gnu dot org]

------- Comment #9 from hjl at gcc dot gnu dot org  2009-08-16 20:25 -------
Subject: Bug 41047

Author: hjl
Date: Sun Aug 16 20:23:57 2009
New Revision: 150812

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=150812
Log:
2009-08-16  H.J. Lu  <hongjiu.lu@intel.com>

        Backport from mainline:
        2009-08-14  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/41070
        * gfortran.dg/structure_constructor_10.f90: New.

        2009-08-14  Paolo Bonzini  <bonzini@gnu.org>

        PR target/40934
        * gcc.target/i386/pr40934.c: New.

        2009-08-13  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/40995
        * gfortran.dg/intrinsic_4.f90: New.

        2009-08-13  Richard Guenther  <rguenther@suse.de>

        PR middle-end/41047
        * gcc.dg/tree-ssa/ssa-ccp-27.c: New testcase.

        2009-08-12  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/41011
        * gfortran.dg/pr41011.f: New testcase.

        2009-08-10  Richard Guenther  <rguenther@suse.de>

        PR middle-end/41006
        * gcc.c-torture/compile/pr41006-1.c: New testcase.
        * gcc.c-torture/compile/pr41006-2.c: Likewise.

        2009-08-10  Dodji Seketeli  <dodji@redhat.com>

        PR c++/40866
        * g++.dg/expr/stmt-expr-1.C: New test.

        2009-08-09  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/41008
        * gcc.dg/vect/O1-pr41008.c: New test.

        2009-08-08  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/40991
        * g++.dg/torture/pr40991.C: New testcase.

        2009-08-06  Uros Bizjak  <ubizjak@gmail.com>
                    H.J. Lu  <hongjiu.lu@intel.com>

        PR target/40957
        * gcc.target/i386/pr40957.c: New test.

        2009-08-06  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/40964
        * gcc.c-torture/compile/pr40964.c: New testcase.

Added:
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/expr/stmt-expr-1.C
      - copied unchanged from r150811,
trunk/gcc/testsuite/g++.dg/expr/stmt-expr-1.C
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/torture/pr40991.C
      - copied unchanged from r150811,
trunk/gcc/testsuite/g++.dg/torture/pr40991.C
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr40964.c
      - copied unchanged from r150811,
trunk/gcc/testsuite/gcc.c-torture/compile/pr40964.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr41006-1.c
      - copied unchanged from r150811,
trunk/gcc/testsuite/gcc.c-torture/compile/pr41006-1.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr41006-2.c
      - copied unchanged from r150811,
trunk/gcc/testsuite/gcc.c-torture/compile/pr41006-2.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-27.c
      - copied unchanged from r150811,
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-27.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/vect/O1-pr41008.c
      - copied unchanged from r150811,
trunk/gcc/testsuite/gcc.dg/vect/O1-pr41008.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.target/i386/pr40934.c
      - copied unchanged from r150811,
trunk/gcc/testsuite/gcc.target/i386/pr40934.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.target/i386/pr40957.c
      - copied unchanged from r150811,
trunk/gcc/testsuite/gcc.target/i386/pr40957.c
    branches/gcc-4_4-branch/gcc/testsuite/gfortran.dg/intrinsic_4.f90
      - copied unchanged from r150811,
trunk/gcc/testsuite/gfortran.dg/intrinsic_4.f90
    branches/gcc-4_4-branch/gcc/testsuite/gfortran.dg/pr41011.f
      - copied unchanged from r150811,
trunk/gcc/testsuite/gfortran.dg/pr41011.f
   
branches/gcc-4_4-branch/gcc/testsuite/gfortran.dg/structure_constructor_10.f90
      - copied unchanged from r150811,
trunk/gcc/testsuite/gfortran.dg/structure_constructor_10.f90
Modified:
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41047