MacOS 10.6, valgrind-svn from a couple weeks ago.

vex x86->IR: unhandled instruction bytes: 0x66 0xF 0xBF 0x44
==880== valgrind: Unrecognised instruction at address 0x307dab.
...
==880== Process terminating with default action of signal 4 (SIGILL)
==880==  Illegal opcode at address 0x307DAB
==880==    at 0x307DAB: frexp$fenv_access_off (in /usr/lib/libSystem.B.dylib)

Actual instruction:

0x97c42dab <frexp$fenv_access_off+107>: movsww 0x8(%esp),%ax

I see lots of SIGILL bugs in the bugbase but none for this 
function/instruction.   Should I log a new bug?
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