[Bug target/61239] [4.10 Regression]: ICE in decompose, at rtl.h when compiling vshuf-v16hi.c using -mavx2

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61239

Uroš Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2014-06-02
          Component|rtl-optimization            |target
     Ever confirmed|0                           |1

--- Comment #3 from Uroš Bizjak <ubizjak at gmail dot com> ---
Patch in testing:

--cut here--
Index: i386.c
===================================================================
--- i386.c      (revision 211125)
+++ i386.c      (working copy)
@@ -21541,7 +21541,7 @@ ix86_expand_vec_perm (rtx operands[])
          t1 = gen_reg_rtx (V32QImode);
          t2 = gen_reg_rtx (V32QImode);
          t3 = gen_reg_rtx (V32QImode);
-         vt2 = GEN_INT (128);
+         vt2 = GEN_INT (-128);
          for (i = 0; i < 32; i++)
            vec[i] = vt2;
          vt = gen_rtx_CONST_VECTOR (V32QImode, gen_rtvec_v (32, vec));
--cut here--