[Bug rtl-optimization/25483] New: ICE on valid code with -O2 -fmove-loop-invariants

["drab at kepler dot fjfi dot cvut dot cz" <gcc-bugzilla at gcc dot gnu dot org>]

Attached testcase when compiled by gcc version 4.2.0 20051217 (experimental) on
x86 using:

-----------------
gcc -O2 -fmove-loop-invariants -c -o mpegaudiodec.o mpegaudiodec.c
-----------------

results in the following

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mpegaudiodec.c: In function ?decode_init?:
mpegaudiodec.c:510: error: unrecognizable insn:
(insn:HI 1144 718 1309 70 (set (reg:SI 507)
        (fix:SI (reg:DF 506))) -1 (insn_list:REG_DEP_TRUE 718 (nil))
    (expr_list:REG_DEAD (reg:DF 506)
        (nil)))
mpegaudiodec.c:510: internal compiler error: in extract_insn, at recog.c:2084
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
-----------------

Works on x86_64.


-- 
           Summary: ICE on valid code with -O2 -fmove-loop-invariants
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: drab at kepler dot fjfi dot cvut dot cz
GCC target triplet: i?86-pc-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25483