[Bug rtl-optimization/50843] [4.7 Regression] ICE in simplify_subreg, simplify-rtx.c:5417 with -march=pentium3

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50843

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |i?86-*-*
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011-10-24
      Known to work|                            |4.6.2
   Target Milestone|---                         |4.7.0
            Summary|ICE in simplify_subreg,     |[4.7 Regression] ICE in
                   |simplify-rtx.c:5417 with    |simplify_subreg,
                   |-march=pentium3             |simplify-rtx.c:5417 with
                   |                            |-march=pentium3
     Ever Confirmed|0                           |1

--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-24 
08:16:38 UTC ---
Confirmed.

#2  0x0000000000b24ad6 in simplify_subreg (outermode=SImode, 
    op=0x2aaaace98470, innermode=SImode, byte=4)
    at /space/rguenther/src/svn/trunk/gcc/simplify-rtx.c:5417
5417      gcc_assert (byte < GET_MODE_SIZE (innermode));