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Description of problem:
I have a short test-case for an unrecognizable insn ICE at -O2 or higher.

Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1.on ppc, gcc -O2 screen.c (source file will be attached)
2.
3.
	

Actual Results:  screen.c: In function `workspace_layout':
screen.c:17: unrecognizable insn:
(insn 117 48 118 (parallel[
            (set (reg/v:SI 10 r10 [118])
                (plus:SI (gt:SI (reg:SI 0 r0 [141])
                        (const_int 0 [0x0]))
                    (reg:SI 9 r9 [134])))
            (clobber (reg:SI 8 r8))
        ] ) -1 (nil)
    (nil))
screen.c:17: Internal compiler error in extract_insn, at recog.c:2148


Expected Results:  successful compile

Additional info:

does not fail at -O1 or lower. The test case is reduced from a source file in
metacity.