[Bug rtl-optimization/60508] [4.8/4.9 Regression] internal compiler error: in lra_set_insn_recog_data, at lra.c:1082

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60508

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |vmakarov at gcc dot gnu.org
   Target Milestone|---                         |4.8.3
            Summary|internal compiler error: in |[4.8/4.9 Regression]
                   |lra_set_insn_recog_data, at |internal compiler error: in
                   |lra.c:1082                  |lra_set_insn_recog_data, at
                   |                            |lra.c:1082

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Started to ICE with r195902:
pr60508.c: In function ‘fn1’:
pr60508.c:29:1: error: unrecognizable insn:
(insn 95 94 88 3 (set (reg/v:QI 4 si [orig:84 i ] [84])
        (subreg:QI (subreg:SI (reg:DI 2 cx [126]) 0) 0)) pr60508.c:14 -1
     (nil))
pr60508.c:29:1: internal compiler error: in extract_insn, at recog.c:2164

On 4.8 branch with release checking the ICE is:
pr60508.c:29:1: internal compiler error: in subreg_get_info, at rtlanal.c:3278

Starting with r206023 it is:
pr60508.c:29:1: internal compiler error: in lra_set_insn_recog_data, at
lra.c:1081
rather than ICE about unrecognizable insn.