[Bug middle-end/21850] New: misscompiling comparision from vector to integer

[Bug middle-end/21850] New: misscompiling comparision from vector to integer

[pinskia at gcc dot gnu dot org]

the following code is miscompiled:

extern void abort (void);

typedef int V2SI __attribute__ ((vector_size (8)));

int
main (void)
{
  if (((int)(long long)(V2SI){ 2, 2 })!=2)
    abort ();
}


Note this is now blocking my tree combiner to be regression free.

-- 
           Summary: misscompiling comparision from vector to integer
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P2
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21850

[Bug middle-end/21850] misscompiling comparision from vector to integer

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-05-31 20:50 -------
This used to work right before the branch of 4.0.0.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
OtherBugsDependingO|                            |15459
              nThis|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21850

[Bug middle-end/21850] misscompiling comparision from vector to integer

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-05-31 21:02 -------
The problem is that we are assuming TYPE_PRECISION of the vector is really the precision when it is in 
fact the number of elements.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21850

[Bug middle-end/21850] misscompiling comparision from vector to integer

[jakub at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jakub at gcc dot gnu dot org
                   |dot org                     |
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2005-06-07 12:20:36
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21850

[Bug middle-end/21850] misscompiling comparision from vector to integer

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-06-07 21:45 -------
Subject: Bug 21850

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	jakub@gcc.gnu.org	2005-06-07 21:45:08

Modified files:
	gcc            : ChangeLog tree.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.c-torture/execute: 20050607-1.c 

Log message:
	PR middle-end/21850
	* tree.c (get_unwidened): Stop at NOP_EXPR/CONVERT_EXPR that convert
	from vector types.
	
	* gcc.c-torture/execute/20050607-1.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.9074&r2=2.9075
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree.c.diff?cvsroot=gcc&r1=1.486&r2=1.487
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5608&r2=1.5609
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20050607-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21850

[Bug middle-end/21850] [4.0 Regression] misscompiling comparision from vector to integer

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |4.1.0
   Last reconfirmed|2005-06-07 12:20:36         |2005-06-09 14:45:12
               date|                            |
            Summary|misscompiling comparision   |[4.0 Regression]
                   |from vector to integer      |misscompiling comparision
                   |                            |from vector to integer
   Target Milestone|---                         |4.0.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21850

[Bug middle-end/21850] [4.0 Regression] misscompiling comparision from vector to integer

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-06-16 23:20 -------
Subject: Bug 21850

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-4_0-branch
Changes by:	jakub@gcc.gnu.org	2005-06-16 23:19:59

Modified files:
	gcc            : ChangeLog tree.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.c-torture/execute: 20050607-1.c 

Log message:
	PR middle-end/21850
	* tree.c (get_unwidened): Stop at NOP_EXPR/CONVERT_EXPR that convert
	from vector types.
	
	* gcc.c-torture/execute/20050607-1.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.7592.2.288&r2=2.7592.2.289
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.466.4.3&r2=1.466.4.4
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.5084.2.242&r2=1.5084.2.243
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20050607-1.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=NONE&r2=1.1.2.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21850

[Bug middle-end/21850] [4.0 Regression] misscompiling comparision from vector to integer

[giovannibajo at libero dot it]

------- Additional Comments From giovannibajo at libero dot it  2005-06-17 00:35 -------
Fixed!

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|4.0.2                       |4.0.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21850