[Bug tree-optimization/66636] New: [6 Regression] ICE in vect_get_vec_def_for_stmt_copy, at tree-vect-stmts.c:1590

[Bug tree-optimization/66636] New: [6 Regression] ICE in vect_get_vec_def_for_stmt_copy, at tree-vect-stmts.c:1590

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66636

            Bug ID: 66636
           Summary: [6 Regression] ICE in vect_get_vec_def_for_stmt_copy,
                    at tree-vect-stmts.c:1590
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: rguenth at gcc dot gnu.org
  Target Milestone: ---

struct X { double x; double y; };

struct X *x;
void foo (double px, int s)
{
  int i;
  for (i = 0; i < 256; ++i)
    {
      x[i*s].x = px;
      x[i*s].y = i + px;
    }
}

with -O3 -mavx2

This causes ammp in SPEC 2000 to ICE.

[Bug tree-optimization/66636] [6 Regression] ICE in vect_get_vec_def_for_stmt_copy, at tree-vect-stmts.c:1590

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66636

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |6.0

[Bug tree-optimization/66636] [6 Regression] ICE in vect_get_vec_def_for_stmt_copy, at tree-vect-stmts.c:1590

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66636

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Jun 23 13:56:34 2015
New Revision: 224841

URL: https://gcc.gnu.org/viewcvs?rev=224841&root=gcc&view=rev
Log:
2015-06-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/66636
        * tree-vect-stmts.c (vectorizable_store): Properly compute the
        def type for further defs for strided stores.

        * gcc.dg/vect/pr66636.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr66636.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-stmts.c

[Bug tree-optimization/66636] [6 Regression] ICE in vect_get_vec_def_for_stmt_copy, at tree-vect-stmts.c:1590

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66636

Richard Biener <rguenth at gcc dot gnu.org> changed:

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

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.