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| author | Akira Hatanaka <ahatanaka@apple.com> | 2018-09-08 20:03:00 +0000 |
|---|---|---|
| committer | Akira Hatanaka <ahatanaka@apple.com> | 2018-09-08 20:03:00 +0000 |
| commit | 2e00b98027b51ee5bfb88a4daea8b78bf9a01e62 (patch) | |
| tree | f3d7abea73167f1aae4c974d890ed608e5c41e7f /llvm/lib/Target/PowerPC/Disassembler/PPCDisassembler.cpp | |
| parent | 7af5e333e7f9ae0a74d86c81babd99006c12a83b (diff) | |
| download | llvm-2e00b98027b51ee5bfb88a4daea8b78bf9a01e62.zip llvm-2e00b98027b51ee5bfb88a4daea8b78bf9a01e62.tar.gz llvm-2e00b98027b51ee5bfb88a4daea8b78bf9a01e62.tar.bz2 | |
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
Diffstat (limited to 'llvm/lib/Target/PowerPC/Disassembler/PPCDisassembler.cpp')
0 files changed, 0 insertions, 0 deletions