Implement the last major missing piece in the DAG isel generator: when emitting a pattern match, make sure to emit the (minimal number of) type checks that verify the pattern matches this specific instruction.  This allows FMA32 patterns to not match double expressions for example.
Implement the last major missing piece in the DAG isel generator: when emitting
a pattern match, make sure to emit the (minimal number of) type checks that
verify the pattern matches this specific instruction.  This allows FMA32
patterns to not match double expressions for example.


git-svn-id: a4a6f32337ebd29ad4763b423022f00f68d1c7b7@23748 91177308-0d34-0410-b5e6-96231b3b80d8

lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx