Akira Hatanaka 2e00b98027 Distinguish __block variables that are captured by escaping blocks
from those that aren't.

This patch changes the way __block variables that aren't captured by
escaping blocks are handled:

- Since non-escaping blocks on the stack never get copied to the heap
  (see https://reviews.llvm.org/D49303), Sema shouldn't error out when
  the type of a non-escaping __block variable doesn't have an accessible
  copy constructor.

- IRGen doesn't have to use the specialized byref structure (see
  https://clang.llvm.org/docs/Block-ABI-Apple.html#id8) for a
  non-escaping __block variable anymore. Instead IRGen can emit the
  variable as a normal variable and copy the reference to the block
  literal. Byref copy/dispose helpers aren't needed either.

rdar://problem/39352313

Differential Revision: https://reviews.llvm.org/D51564

llvm-svn: 341754
2018-09-08 20:03:00 +00:00
..
2018-02-23 19:30:48 +00:00
2018-02-15 19:12:41 +00:00
2018-03-27 17:17:39 +00:00
2018-04-06 15:14:32 +00:00
2017-05-04 08:37:59 +00:00
2016-11-09 17:02:07 +00:00
2016-06-14 21:02:05 +00:00
2018-02-23 19:30:48 +00:00
2017-12-27 10:01:00 +00:00
2017-11-06 07:04:12 +00:00
2017-11-06 07:04:12 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-03-20 20:42:55 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-03-29 16:35:52 +00:00
2017-04-04 21:18:36 +00:00
2017-03-31 13:48:18 +00:00
2018-02-23 19:30:48 +00:00
2018-05-25 06:34:42 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-02-07 22:15:33 +00:00
2018-02-07 22:15:33 +00:00
2016-05-04 23:37:40 +00:00
2018-02-23 19:30:48 +00:00
2017-08-11 11:03:54 +00:00
2018-02-07 22:15:33 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2016-05-19 17:47:47 +00:00
2018-02-23 19:30:48 +00:00
2016-06-14 21:02:05 +00:00
2017-05-23 00:35:09 +00:00
2018-04-06 15:14:32 +00:00
2018-02-23 19:30:48 +00:00
2018-08-23 04:09:49 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-02-07 22:15:33 +00:00
2016-06-24 13:11:15 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2018-02-23 19:30:48 +00:00
2016-06-14 21:02:05 +00:00