[Bug target/123643] spec2006 456.tonto ICE since r16-6767-g948d33f490a6b0

[chenglulu at loongson dot cn via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123643
Bug 123643 depends on bug 117575, which changed state.

Bug 117575 Summary: unrecognizable insn
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117575

           What    |Removed                     |Added
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             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED