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5 Commits

Author SHA1 Message Date
John McCall
89e60f31aa Add protocol witness tables to existential metatype 
layouts.  Introduce new SIL instructions to initialize
and open existential metatype values.

Don't actually, y'know, lift any of the restriction on
existential metatypes; just pointlessly burn extra
memory storing them.

Swift SVN r22592
 2014-10-08 01:20:13 +00:00
John McCall
c367362f22 Properly flag opaque existential types as not being 
bitwise-takable.

Swift SVN r20803
 2014-07-31 02:03:56 +00:00
John McCall
584795e505 Replace the typeOf value witness with an 
initializeBufferWithTakeOfBuffer value witness.

Attempt to use initializeBufferWithTakeOfBuffer in
some appropriate places.

There are some changes enabled by this which are
coming in a follow-up patch.

Swift SVN r20741
 2014-07-30 08:24:12 +00:00
John McCall
934527a029 Eliminate all uses of the typeof value witness. 
Swift SVN r20734
 2014-07-30 04:40:58 +00:00
John McCall
1f5fa04724 Move the rest of the dynamic-cast code over to Casting.cpp. 
Swift SVN r18759
 2014-06-09 21:42:30 +00:00