[Bug c/14219] New: mmx code fails to compile

[Bug c/14219] New: mmx code fails to compile

[mj_ at gazeta dot pl]

compiling code like:

typedef int v2si __attribute__ ((mode (V2SI)));
                                                                               
                                               int test (v2si a, v2si b)
{
        return (a == b);
}

with `gcc -march=athlon-xp test.c` gives this error message:

test.c: In function `test':
test.c:5: internal compiler error: in prepare_cmp_insn, at optabs.c:3512

gcc version 3.3.3 20040125 (prerelease) (Debian)

-- 
           Summary: mmx code fails to compile
           Product: gcc
           Version: 3.3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mj_ at gazeta dot pl
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14219

[Bug c/14219] [3.3/3.4/3.5 regression] ICE with mmx vector comparison

[bangerth at dealii dot org]

------- Additional Comments From bangerth at dealii dot org  2004-02-20 00:13 -------
Confirmed. This is a regression against 3.2.3 which simply prints 
the same error message as does presently the C++ compiler on this snippet: 
 
g/x> /home/bangerth/bin/gcc-3.2.3/bin/gcc -c x.c -march=athlon-xp 
x.c: In function `test': 
x.c:5: invalid operands to binary == 
 
g/x> /home/bangerth/bin/gcc-3.3.3-pre/bin/gcc -c x.c -march=athlon-xp 
x.c: In function `test': 
x.c:5: internal compiler error: in prepare_cmp_insn, at optabs.c:3512 
Please submit a full bug report, 
with preprocessed source if appropriate. 
See <URL:http://gcc.gnu.org/bugs.html> for instructions. 
g/x>  
g/x> /home/bangerth/bin/gcc-3.4-pre/bin/gcc -c x.c -march=athlon-xp 
x.c: In function `test': 
x.c:5: internal compiler error: in prepare_cmp_insn, at optabs.c:3687 
Please submit a full bug report, 
with preprocessed source if appropriate. 
See <URL:http://gcc.gnu.org/bugs.html> for instructions. 
g/x>  
g/x> /home/bangerth/bin/gcc-3.5-pre/bin/gcc -c x.c -march=athlon-xp 
x.c: In function `test': 
x.c:5: internal compiler error: in prepare_cmp_insn, at optabs.c:3687 
Please submit a full bug report, 
with preprocessed source if appropriate. 
See <URL:http://gcc.gnu.org/bugs.html> for instructions. 
 

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
      Known to fail|                            |3.4.0 3.5.0 3.3.3
      Known to work|                            |3.2.3
   Last reconfirmed|0000-00-00 00:00:00         |2004-02-20 00:13:33
               date|                            |
            Summary|mmx code fails to compile   |[3.3/3.4/3.5 regression] ICE
                   |                            |with mmx vector comparison
   Target Milestone|---                         |3.3.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14219

[Bug c/14219] [3.3/3.4/3.5 regression] ICE with vector comparison

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-02-20 00:18 -------
MMX is not revelant here really as this causes an ICE on PPC also:
typedef int v2si __attribute__ ((vector_size(16)));
int test (v2si a, v2si b)
{
        return (a == b);
}

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[3.3/3.4/3.5 regression] ICE|[3.3/3.4/3.5 regression] ICE
                   |with mmx vector comparison  |with vector comparison


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14219

[Bug c/14219] [3.3/3.4/3.5 regression] ICE with vector comparison

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-03-01 02:42 -------
Really 3.2.3 just rejected this code, so I do not know if 3.3.x should still reject it or not but 
the real question should we support compare on vectors?

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|3.2.3                       |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14219

[Bug c/14219] [3.3/3.4/3.5 regression] ICE with vector comparison

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-03-15 16:28 -------
It's not clear whether or not this code is valid, and since versions before GCC
3.3 rejected it, there cannot be existing code depending on this feature.

Postponed until 3.4.1.  



-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.3.4                       |3.4.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14219

[Bug c/14219] [3.3/3.4/3.5 regression] ICE with vector comparison

[aldyh at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |aldyh at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14219

[Bug c/14219] [3.3/3.4/3.5 regression] ICE with vector comparison

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-03-25 22:09 -------
Mark, here is the patch that aldy sumbitted: <http://gcc.gnu.org/ml/gcc-patches/2004-03/
msg02125.html>.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mmitchel at gcc dot gnu dot
                   |                            |org
           Keywords|                            |patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14219

[Bug c/14219] [3.3/3.4/3.5 regression] ICE with vector comparison

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-03-26 08:27 -------
OK for 3.4.0.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14219

[Bug c/14219] [3.3/3.4/3.5 regression] ICE with vector comparison

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-03-26 11:45 -------
Subject: Bug 14219

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	aldyh@gcc.gnu.org	2004-03-26 11:45:21

Modified files:
	gcc            : ChangeLog c-typeck.c 

Log message:
	PR 14219
	* c-typeck.c (build_binary_op): Do not allow comparisons of
	vectors.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.3298&r2=2.3299
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-typeck.c.diff?cvsroot=gcc&r1=1.295&r2=1.296



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14219

[Bug c/14219] [3.3/3.4 regression] ICE with vector comparison

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[3.3/3.4/3.5 regression] ICE|[3.3/3.4 regression] ICE
                   |with vector comparison      |with vector comparison
   Target Milestone|3.4.1                       |3.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14219

[Bug c/14219] [3.3/3.4 regression] ICE with vector comparison

[gdr at integrable-solutions dot net]

------- Additional Comments From gdr at integrable-solutions dot net  2004-03-27 00:42 -------
Subject: Re:  [3.3/3.4/3.5 regression] ICE with vector comparison

"mmitchel at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> writes:

| OK for 3.4.0.

Same for 3.3.4 (I don't remember whether I OKed).

-- Gaby


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14219

[Bug c/14219] [3.3/3.4 regression] ICE with vector comparison

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-03-29 11:48 -------
Subject: Bug 14219

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_3-branch
Changes by:	aldyh@gcc.gnu.org	2004-03-29 11:48:36

Modified files:
	gcc            : ChangeLog c-typeck.c 

Log message:
	2004-03-25  Aldy Hernandez  <aldyh@redhat.com>
	
	PR 14219
	* c-typeck.c (build_binary_op): Do not allow comparisons of
	vectors.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.16114.2.956&r2=1.16114.2.957
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-typeck.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.213.2.15&r2=1.213.2.16



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14219

[Bug c/14219] [3.4 regression] ICE with vector comparison

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-03-29 12:06 -------
Subject: Bug 14219

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_3-e500-branch
Changes by:	aldyh@gcc.gnu.org	2004-03-29 12:06:33

Modified files:
	gcc            : ChangeLog.e500 c-typeck.c 

Log message:
	PR 14219
	* c-typeck.c (build_binary_op): Do not allow comparisons of
	vectors.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.e500.diff?cvsroot=gcc&only_with_tag=gcc-3_3-e500-branch&r1=1.1.2.41&r2=1.1.2.42
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-typeck.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-e500-branch&r1=1.213.2.5.2.7&r2=1.213.2.5.2.8



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14219

[Bug c/14219] [3.4 regression] ICE with vector comparison

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-03-30 22:27 -------
Aldy, would you please apply this to 3.4.0?  I approved it in comment #7 a few
days ago.  Thanks!

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14219

[Bug c/14219] [3.4 regression] ICE with vector comparison

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-03-31 00:24 -------
Subject: Bug 14219

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_4-branch
Changes by:	aldyh@gcc.gnu.org	2004-03-31 00:24:55

Modified files:
	gcc            : ChangeLog c-typeck.c 

Log message:
	PR 14219
	* c-typeck.c (build_binary_op): Do not allow comparisons of
	vectors.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=2.2326.2.373&r2=2.2326.2.374
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-typeck.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.272.2.6&r2=1.272.2.7



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14219

[Bug c/14219] [3.4 regression] ICE with vector comparison

[aldyh at redhat dot com]

------- Additional Comments From aldyh at redhat dot com  2004-03-31 00:26 -------
Subject: Re:  [3.4 regression] ICE with vector comparison

IOn Tue, Mar 30, 2004 at 10:27:44PM -0000, mmitchel at gcc dot gnu dot org wrote:
> 
> ------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-03-30 22:27 -------
> Aldy, would you please apply this to 3.4.0?  I approved it in comment #7 a few
> days ago.  Thanks!

Whoops.  Ok, committed.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14219

[Bug c/14219] [3.4 regression] ICE with vector comparison

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-03-31 00:27 -------
Closing as fixed then.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14219