Use ComputeMaskedBits to determine # sign bits as a fallback.  This allows us
to handle all kinds of stuff, including silly things like:
sextinreg(setcc,i16) -> setcc.

llvm-svn: 28155
1 file changed
tree: d5b6ceca4c441057b3c0e97a56b580c5ccf239e0
  1. llvm/