[Bug c++/32746] New: tree-ssa-operands int.comp error

[Bug c++/32746] New: tree-ssa-operands int.comp error

[rosana07a at gmail dot com]

Reading specs from /var/tmp/gcc/testsuite/g++/../../specs
Target: i686-pc-linux-gnu
Configured with: ../gcc-4.3.0/configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --disable-nls --disable-multilib --disable-werror
--disable-libunwind-exceptions --disable-checking --disable-decimal-float
--enable-shared --enable-tls --enable-threads=posix --enable-bootstrap
--enable-__cxa_atexit --enable-clocale=gnu --enable-languages=c,c++,fortran
--with-cpu=pentium3 --with-system-zlib
Thread model: posix
gcc version 4.3.0 20070712 (experimental)
 /var/tmp/gcc/testsuite/g++/../../cc1plus -E -quiet -nostdinc++ -v
-I/var/tmp/i686-pc-linux-gnu/libstdc++-v3/include/i686-pc-linux-gnu
-I/var/tmp/i686-pc-linux-gnu/libstdc++-v3/include
-I/var/tmp/gcc-4.3.0/libstdc++-v3/libsupc++
-I/var/tmp/gcc-4.3.0/libstdc++-v3/include/backward
-I/var/tmp/gcc-4.3.0/libstdc++-v3/testsuite/util -iprefix
/var/tmp/gcc/../lib/gcc/i686-pc-linux-gnu/4.3.0/ -isystem
/var/tmp/gcc/testsuite/g++/../../include -isystem
/var/tmp/gcc/testsuite/g++/../../include-fixed -D_GNU_SOURCE
/var/tmp/gcc-4.3.0/gcc/testsuite/g++.dg/opt/pr24665.C -mtune=pentium3
-fmessage-length=0 -O2 -fpch-preprocess -o pr24665.ii
ignoring nonexistent directory
"/var/tmp/gcc/../lib/gcc/i686-pc-linux-gnu/4.3.0/include"
ignoring nonexistent directory
"/var/tmp/gcc/../lib/gcc/i686-pc-linux-gnu/4.3.0/include-fixed"
ignoring nonexistent directory
"/var/tmp/gcc/../lib/gcc/i686-pc-linux-gnu/4.3.0/../../../../i686-pc-linux-gnu/include"
ignoring nonexistent directory
"/var/tmp/gcc/../lib/gcc/../../lib/gcc/i686-pc-linux-gnu/4.3.0/include"
ignoring nonexistent directory
"/var/tmp/gcc/../lib/gcc/../../lib/gcc/i686-pc-linux-gnu/4.3.0/include-fixed"
ignoring nonexistent directory
"/var/tmp/gcc/../lib/gcc/../../lib/gcc/i686-pc-linux-gnu/4.3.0/../../../../i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /var/tmp/i686-pc-linux-gnu/libstdc++-v3/include/i686-pc-linux-gnu
 /var/tmp/i686-pc-linux-gnu/libstdc++-v3/include
 /var/tmp/gcc-4.3.0/libstdc++-v3/libsupc++
 /var/tmp/gcc-4.3.0/libstdc++-v3/include/backward
 /var/tmp/gcc-4.3.0/libstdc++-v3/testsuite/util
 /var/tmp/gcc/testsuite/g++/../../include
 /var/tmp/gcc/testsuite/g++/../../include-fixed
 /usr/lib/qt/include
 /usr/local/include
 /usr/include
End of search list.
 /var/tmp/gcc/testsuite/g++/../../cc1plus -fpreprocessed pr24665.ii -quiet
-dumpbase pr24665.C -mtune=pentium3 -auxbase-strip pr24665.s -O2 -version
-fmessage-length=0 -o pr24665.s
GNU C++ version 4.3.0 20070712 (experimental) (i686-pc-linux-gnu)
        compiled by GNU C version 4.3.0 20070712 (experimental), GMP version
4.2.1, MPFR version 2.2.1-p5.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 34f0066fe8f9a5440faf13dce14cd9f0
/var/tmp/gcc-4.3.0/gcc/testsuite/g++.dg/opt/pr24665.C: In constructor
'Controller_t::Controller_t()':
/var/tmp/gcc-4.3.0/gcc/testsuite/g++.dg/opt/pr24665.C:26: internal compiler
error: in get_indirect_ref_operands, at tree-ssa-operands.c:1612
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.


-- 
           Summary: tree-ssa-operands int.comp error
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rosana07a at gmail dot com
 GCC build triplet: i686
  GCC host triplet: i686
GCC target triplet: i686


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32746

[Bug tree-optimization/32746] [4.3 Regression] tree-ssa-operands int.comp error

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|major                       |normal
  GCC build triplet|i686                        |
   GCC host triplet|i686                        |
 GCC target triplet|i686                        |i686-linux-gnu
           Keywords|                            |ice-on-valid-code
            Summary|tree-ssa-operands int.comp  |[4.3 Regression] tree-ssa-
                   |error                       |operands int.comp error
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32746

[Bug tree-optimization/32746] tree-ssa-operands int.comp error

[rosana07a at gmail dot com]

------- Comment #1 from rosana07a at gmail dot com  2007-07-12 22:30 -------
Created an attachment (id=13905)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13905&action=view)
pr24665.ii


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32746

[Bug tree-optimization/32746] [4.3 Regression] tree-ssa-operands int.comp error

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2007-07-13 02:26 -------
Reduced testcase:
struct RegisterLayout
{
    int intmask;
};
struct Controller_t
{
    static inline void
    disableInterrupt()
    {
        *mpMaskRegister = 0;
    };
    static int * const mpMaskRegister;
};
extern char SimulatedRegisters[];
int * const Controller_t::mpMaskRegister
  = &((RegisterLayout*)SimulatedRegisters)->intmask;
void f()
{
   Controller_t::disableInterrupt();
}


-----  CUT -----
FRE is where it goes wrong:
  mpMaskRegister.0_1 = &((struct RegisterLayout *) (char *)
&SimulatedRegisters)->intmask;


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dberlin at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-07-13 02:26:15
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32746

[Bug tree-optimization/32746] [4.3 Regression] tree-ssa-operands int.comp error

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2007-07-13 23:08 -------
Note the testsuite already have a testcase for this issue as
g++.dg/opt/pr24665.C :).  Actually look at that, this bug is about that
testcase :).


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32746

[Bug tree-optimization/32746] [4.3 Regression] tree-ssa-operands int.comp error

[hp at gcc dot gnu dot org]

------- Comment #4 from hp at gcc dot gnu dot org  2007-07-13 23:36 -------
Also happens for cris-axis-elf and likely other 32-bit platforms.


-- 

hp at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32746

[Bug tree-optimization/32746] [4.3 Regression] tree-ssa-operands int.comp error

[dberlin at dberlin dot org]

------- Comment #5 from dberlin at gcc dot gnu dot org  2007-07-14 02:12 -------
Subject: Re:  [4.3 Regression] tree-ssa-operands int.comp error

valid_gimple_expression_p claims
&((struct RegisterLayout *) (char *) &SimulatedRegisters)->intmask;

is valid GIMPLE, when it is not.



On 13 Jul 2007 23:37:00 -0000, hp at gcc dot gnu dot org
<gcc-bugzilla@gcc.gnu.org> wrote:
>
>
> ------- Comment #4 from hp at gcc dot gnu dot org  2007-07-13 23:36 -------
> Also happens for cris-axis-elf and likely other 32-bit platforms.
>
>
> --
>
> hp at gcc dot gnu dot org changed:
>
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                  CC|                            |hp at gcc dot gnu dot org
>
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32746
>
>


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32746

Re: [Bug tree-optimization/32746] [4.3 Regression] tree-ssa-operands int.comp error

[Daniel Berlin]

valid_gimple_expression_p claims
&((struct RegisterLayout *) (char *) &SimulatedRegisters)->intmask;

is valid GIMPLE, when it is not.



On 13 Jul 2007 23:37:00 -0000, hp at gcc dot gnu dot org
<gcc-bugzilla@gcc.gnu.org> wrote:
>
>
> ------- Comment #4 from hp at gcc dot gnu dot org  2007-07-13 23:36 -------
> Also happens for cris-axis-elf and likely other 32-bit platforms.
>
>
> --
>
> hp at gcc dot gnu dot org changed:
>
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                  CC|                            |hp at gcc dot gnu dot org
>
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32746
>
>

[Bug tree-optimization/32746] [4.3 Regression] tree-ssa-operands int.comp error

[pinskia at gcc dot gnu dot org]

------- Comment #6 from pinskia at gcc dot gnu dot org  2007-07-22 02:19 -------
*** Bug 32848 has been marked as a duplicate of this bug. ***


-- 

pinskia at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32746

[Bug tree-optimization/32746] [4.3 Regression] tree-ssa-operands int.comp error

[hjl at lucon dot org]

------- Comment #7 from hjl at lucon dot org  2007-07-22 07:34 -------
PR 32850 has the revision # which causes this regression.

*** This bug has been marked as a duplicate of 32850 ***


-- 

hjl at lucon dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32746

[Bug tree-optimization/32746] [4.3 Regression] tree-ssa-operands int.comp error

[pinskia at gcc dot gnu dot org]

------- Comment #8 from pinskia at gcc dot gnu dot org  2007-07-22 09:03 -------
Reopen this one.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|DUPLICATE                   |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32746

[Bug tree-optimization/32746] [4.3 Regression] tree-ssa-operands int.comp error

[pinskia at gcc dot gnu dot org]

------- Comment #9 from pinskia at gcc dot gnu dot org  2007-07-22 09:04 -------
*** Bug 32850 has been marked as a duplicate of this bug. ***


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hjl at lucon dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32746

Re: [Bug tree-optimization/32746] [4.3 Regression] tree-ssa-operands int.comp error

[Daniel Berlin]

I already submitted a patch for this (see my followup to HP that fixes
valid_gimple_expression_p).
As soon as i can bootstrap on darwin, i will commit it.
If someone wants to do so before me, all you need to do is change
is_gimple_addressable to is_gimple_id in valid_gimple_expression_p

[Bug tree-optimization/32746] [4.3 Regression] tree-ssa-operands int.comp error

[dberlin at dberlin dot org]

------- Comment #10 from dberlin at gcc dot gnu dot org  2007-07-22 15:42 -------
Subject: Re:  [4.3 Regression] tree-ssa-operands int.comp error

I already submitted a patch for this (see my followup to HP that fixes
valid_gimple_expression_p).
As soon as i can bootstrap on darwin, i will commit it.
If someone wants to do so before me, all you need to do is change
is_gimple_addressable to is_gimple_id in valid_gimple_expression_p


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32746

[Bug tree-optimization/32746] [4.3 Regression] tree-ssa-operands int.comp error

[rosana07a at gmail dot com]

------- Comment #11 from rosana07a at gmail dot com  2007-07-22 20:09 -------
(In reply to comment #10)
> Subject: Re:  [4.3 Regression] tree-ssa-operands int.comp error
> 
> I already submitted a patch for this (see my followup to HP that fixes
> valid_gimple_expression_p).
> As soon as i can bootstrap on darwin, i will commit it.
> If someone wants to do so before me, all you need to do is change
> is_gimple_addressable to is_gimple_id in valid_gimple_expression_p
> 

Implemented change as per #10 on i686 and it appears to cure the problem.

No idea about darwin, cris-axis-elf, or other 32-bit.

Thanks Mr Berlin!


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32746

[Bug tree-optimization/32746] [4.3 Regression] tree-ssa-operands int.comp error

[pinskia at gcc dot gnu dot org]

------- Comment #12 from pinskia at gcc dot gnu dot org  2007-07-23 21:38 -------
Fixed by: http://gcc.gnu.org/viewcvs?view=rev&revision=126857


-- 

pinskia at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32746