[Bug c/25559] New: Internal compiler error when specifying vector_size(2)

[Bug c/25559] New: Internal compiler error when specifying vector_size(2)

[guilhem at kaffe dot org]

I have found this bug when playing a bit with the vector_size attribute. To
reproduce just compile the attached program with

gcc  -march=pentium4 runsimd.c

Result:
runsimd.c:1: internal compiler error: in round_up, at fold-const.c:11606
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.


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           Summary: Internal compiler error when specifying vector_size(2)
           Product: gcc
           Version: 4.0.2
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: guilhem at kaffe dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25559

[Bug c/25559] Internal compiler error when specifying vector_size(2)

[guilhem at kaffe dot org]

------- Comment #1 from guilhem at kaffe dot org  2005-12-25 14:51 -------
Created an attachment (id=10554)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=10554&action=view)
Testcase


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25559

[Bug c/25559] Internal compiler error when specifying vector_size(2)

[guilhem at kaffe dot org]

------- Comment #2 from guilhem at kaffe dot org  2005-12-25 14:52 -------
Changing vector_size(2) to vector_size(4) does not show any problem by the way.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25559

[Bug c/25559] [4.0/4.1/4.2 Regression] Internal compiler error when specifying vector_size(2) of int

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2005-12-25 14:57 -------
Reduced testcase:
typedef int __m64 __attribute__ ((vector_size(2)));


This is invalid as int is 4 bytes but you are trying to fit a vector of 2bytes
which is just wrong


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pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|major                       |minor
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
           Keywords|                            |ice-on-invalid-code
      Known to fail|                            |4.0.0 4.1.0 4.2.0
      Known to work|                            |3.4.0
   Last reconfirmed|0000-00-00 00:00:00         |2005-12-25 14:57:06
               date|                            |
            Summary|Internal compiler error when|[4.0/4.1/4.2 Regression]
                   |specifying vector_size(2)   |Internal compiler error when
                   |                            |specifying vector_size(2) of
                   |                            |int
   Target Milestone|---                         |4.0.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25559

[Bug c/25559] [4.0/4.1/4.2 Regression] Internal compiler error when specifying vector_size(2) of int

[jakub at gcc dot gnu dot org]

-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jakub at gcc dot gnu dot org
                   |dot org                     |
                URL|                            |http://gcc.gnu.org/ml/gcc-
                   |                            |patches/2005-
                   |                            |12/msg01870.html
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2005-12-25 14:57:06         |2005-12-28 12:40:05
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25559

[Bug c/25559] [4.0/4.1/4.2 Regression] Internal compiler error when specifying vector_size(2) of int

[jakub at gcc dot gnu dot org]

------- Comment #4 from jakub at gcc dot gnu dot org  2006-01-04 08:07 -------
Subject: Bug 25559

Author: jakub
Date: Wed Jan  4 08:07:09 2006
New Revision: 109316

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=109316
Log:
        PR c/25559
        * c-common.c (handle_vector_size_attribute): Reject zero vector size
        as well as sizes not multiple of component size.

        * gcc.dg/pr25559.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr25559.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-common.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25559

[Bug c/25559] [4.0/4.1/4.2 Regression] Internal compiler error when specifying vector_size(2) of int

[jakub at gcc dot gnu dot org]

------- Comment #5 from jakub at gcc dot gnu dot org  2006-01-04 09:16 -------
Subject: Bug 25559

Author: jakub
Date: Wed Jan  4 09:16:09 2006
New Revision: 109320

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=109320
Log:
        PR c/25559
        * c-common.c (handle_vector_size_attribute): Reject zero vector size
        as well as sizes not multiple of component size.

        * gcc.dg/pr25559.c: New test.

Added:
    branches/gcc-4_1-branch/gcc/testsuite/gcc.dg/pr25559.c
Modified:
    branches/gcc-4_1-branch/gcc/ChangeLog
    branches/gcc-4_1-branch/gcc/c-common.c
    branches/gcc-4_1-branch/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25559

[Bug c/25559] [4.0/4.1/4.2 Regression] Internal compiler error when specifying vector_size(2) of int

[jakub at gcc dot gnu dot org]

------- Comment #6 from jakub at gcc dot gnu dot org  2006-01-04 12:27 -------
Subject: Bug 25559

Author: jakub
Date: Wed Jan  4 12:27:48 2006
New Revision: 109326

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=109326
Log:
        PR c/25559
        * c-common.c (handle_vector_size_attribute): Reject zero vector size
        as well as sizes not multiple of component size.

        * gcc.dg/pr25559.c: New test.

Added:
    branches/gcc-4_0-branch/gcc/testsuite/gcc.dg/pr25559.c
Modified:
    branches/gcc-4_0-branch/gcc/ChangeLog
    branches/gcc-4_0-branch/gcc/c-common.c
    branches/gcc-4_0-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25559

[Bug c/25559] [4.0/4.1/4.2 Regression] Internal compiler error when specifying vector_size(2) of int

[jakub at gcc dot gnu dot org]

------- Comment #7 from jakub at gcc dot gnu dot org  2006-01-04 12:33 -------
Fixed.


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jakub at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25559