[cfe-commits] r81602 - in /cfe/trunk: lib/CodeGen/CGBlocks.cpp lib/CodeGen/CGDecl.cpp lib/CodeGen/CGExpr.cpp test/CodeGen/blocks-aligned-byref-variable.c

[Mike Stump]

On Sep 11, 2009, at 7:44 PM, Anders Carlsson wrote:
> URL: http://llvm.org/viewvc/llvm-project?rev=81602&view=rev
> Log:
> Add support for __block variables with alignment greater than  
> __alignof(void *).

Unfortunately, we also need a sema error for alignment larger than the  
minimum of the maximal stack alignmint and the alignment of malloc on  
the system.  For darwin, I think that means 16.  Also, ordinary stack  
decls that request larger than the maximal stack alignment the system  
conspires to allow need a sema error as well.  In time, people might  
include the required alignment in the block and a flag to request more  
than the standard align in the blocks runtime, but until then...  I've  
added a FIXME.