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8 Commits

Author SHA1 Message Date
John McCall 351762cda2 A few more tweaks to the blocks AST representation: 
- BlockDeclRefExprs always store VarDecls
  - BDREs no longer store copy expressions
  - BlockDecls now store a list of captured variables, information about
    how they're captured, and a copy expression if necessary
    
With that in hand, change IR generation to use the captures data in       
blocks instead of walking the block independently.        

Additionally, optimize block layout by emitting fields in descending
alignment order, with a heuristic for filling in words when alignment
of the end of the block header is insufficient for the most aligned
field.

llvm-svn: 125005
 2011-02-07 10:33:21 +00:00
Fariborz Jahanian 2a5deb56a4 Adding couple of Block API, a bug fix and 
a test change, all for blocks. wip.

llvm-svn: 118745
 2010-11-11 00:11:38 +00:00
Fariborz Jahanian 0aa35b9cf5 Block description for trivial block literals have 
their 'isa' field scanned regardless.

llvm-svn: 113749
 2010-09-13 16:09:44 +00:00
Fariborz Jahanian 933c6723a4 Fixes an obscure bug in importd block variable layout 
information when imported variable is used
more than once. Originally though to be a bug in importing
block varibles. Fixes radar 8417746.

llvm-svn: 113675
 2010-09-11 01:27:29 +00:00
Fariborz Jahanian cfddabf5a3 Block ivar layout must assume that the 'isa' 
field of the block descriptor is GC'able (scanned)
as this what the runtime expects (one can send it 
messages). Radar 8394947.

llvm-svn: 113454
 2010-09-09 00:21:45 +00:00
Fariborz Jahanian f95e358004 Finishing up block variable layout API by supporting 
union type variables and their nesting inside other
aggregate types.

llvm-svn: 110448
 2010-08-06 16:28:55 +00:00
Fariborz Jahanian 903aba39ee Add support for block imported struct variable layout info. 
(objc gc and blocks in NeXt runtime).

llvm-svn: 110377
 2010-08-05 21:00:25 +00:00
Fariborz Jahanian 9659f6b540 Block variable layout bitmap API generation. 
llvm-svn: 110287
 2010-08-04 23:55:24 +00:00