[Bug tree-optimization/32421] [4.3 Regression] -ftree-vectorize -msse2 ICEs in build2_stat when vectorizing POINTER_PLUS_EXPR

[Bug tree-optimization/32421] [4.3 Regression] -ftree-vectorize -msse2 ICEs in build2_stat when vectorizing POINTER_PLUS_EXPR

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2007-06-20 13:34 -------
Mine.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |pinskia at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-06-20 13:34:42
               date|                            |
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32421

[Bug tree-optimization/32421] New: [4.3 Regression] -ftree-vectorize -msse2 ICEs in build2_stat when vectorizing POINTER_PLUS_EXPR

[pinskia at gcc dot gnu dot org]

Testcase:
int f(int **restrict a, int ** restrict b)
{
  int i;
  for(i= 0;i<32;i++)
    a[i] = b[i] + 1;
}


-- 
           Summary: [4.3 Regression] -ftree-vectorize -msse2 ICEs in
                    build2_stat when vectorizing POINTER_PLUS_EXPR
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32421

[Bug tree-optimization/32421] [4.3 Regression] -ftree-vectorize -msse2 ICEs in build2_stat when vectorizing POINTER_PLUS_EXPR

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2007-06-21 13:32 -------
*** Bug 32435 has been marked as a duplicate of this bug. ***


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pinskia at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32421

[Bug tree-optimization/32421] [4.3 Regression] -ftree-vectorize -msse2 ICEs in build2_stat when vectorizing POINTER_PLUS_EXPR

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2007-06-22 00:01 -------
Patch which fixes the ICE:
Index: tree-vect-transform.c
===================================================================
--- tree-vect-transform.c       (revision 125927)
+++ tree-vect-transform.c       (working copy)
@@ -2968,6 +2968,12 @@

   operation = GIMPLE_STMT_OPERAND (stmt, 1);
   code = TREE_CODE (operation);
+
+  /* For pointer addition, we should use the normal plus for
+     the vector addition.  */
+  if (code == POINTER_PLUS_EXPR)
+    code = PLUS_EXPR;
+
   optab = optab_for_tree_code (code, vectype);

   /* Support only unary or binary operations.  */


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32421

[Bug tree-optimization/32421] [4.3 Regression] -ftree-vectorize -msse2 ICEs in build2_stat when vectorizing POINTER_PLUS_EXPR

[pinskia at gcc dot gnu dot org]

------- Comment #4 from pinskia at gcc dot gnu dot org  2007-06-24 08:08 -------
*** Bug 32476 has been marked as a duplicate of this bug. ***


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pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dcb314 at hotmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32421

[Bug tree-optimization/32421] [4.3 Regression] -ftree-vectorize -msse2 ICEs in build2_stat when vectorizing POINTER_PLUS_EXPR

[pinskia at gcc dot gnu dot org]

------- Comment #5 from pinskia at gcc dot gnu dot org  2007-06-26 00:19 -------
Subject: Bug 32421

Author: pinskia
Date: Tue Jun 26 00:19:44 2007
New Revision: 126012

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=126012
Log:
2007-06-25  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR tree-opt/32421
        * tree-vect-transform.c (vectorizable_operation): Convert
        POINTER_PLUS_EXPR over to PLUS_EXPR.


2007-06-25  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR tree-opt/32421
        * gcc.dg/vect/pr32421.c: New test.



Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr32421.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-transform.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32421

[Bug tree-optimization/32421] [4.3 Regression] -ftree-vectorize -msse2 ICEs in build2_stat when vectorizing POINTER_PLUS_EXPR

[pinskia at gcc dot gnu dot org]

------- Comment #6 from pinskia at gcc dot gnu dot org  2007-06-26 00:22 -------
Fixed.


-- 

pinskia at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32421