Evan Cheng 8c500100f6 Minor bug fix. LowerSubregs should translate ...

%S0<def> = EXTRACT_SUBREG %Q0<kill>, 1
to
%S0<def> = IMPLICIT_DEF %Q0<imp-use,kill>

Implicit_def does not *read* any register so the operand should be marked "implicit". The missing "implicit" marker on the operand is wrong, but it doesn't actually break anything.

llvm-svn: 82503

2009-09-22 00:29:40 +00:00

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