[Bug rtl-optimization/55838] ICE in extract_insn (unrecognizable insn) with -O -funroll-loops

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55838



Andrew Pinski <pinskia at gcc dot gnu.org> changed:



           What    |Removed                     |Added

----------------------------------------------------------------------------

             Target|                            |x86_64-*-* i?86-*-*

             Status|UNCONFIRMED                 |NEW

           Keywords|                            |ice-on-valid-code

   Last reconfirmed|                            |2013-01-01

          Component|tree-optimization           |rtl-optimization

     Ever Confirmed|0                           |1

      Known to fail|                            |4.3.5, 4.4.5, 4.7.2, 4.8.0



--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2013-01-01 
11:07:40 UTC ---

Confirmed.  Maybe a regression but I don't have any version before 4,3,5

installed.



t88.c:8:1: internal compiler error: in extract_insn, at recog.c:2152

0x88987a _fatal_insn(char const*, rtx_def const*, char const*, int, char

const*)

    ../../gcc/rtl-error.c:110

0x8898a9 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)

    ../../gcc/rtl-error.c:118

0x85feda extract_insn(rtx_def*)

    ../../gcc/recog.c:2152

0xb0cd47 union_match_dups

    ../../gcc/web.c:102

0xb0cd47 web_main

    ../../gcc/web.c:380

Please submit a full bug report,