diff options
| author | Michael Gottesman <mgottesman@apple.com> | 2013-01-16 06:32:39 +0000 |
|---|---|---|
| committer | Michael Gottesman <mgottesman@apple.com> | 2013-01-16 06:32:39 +0000 |
| commit | 09c84f13c6662e680f86e16f2474adf6177cf52f (patch) | |
| tree | e0fcf773d98019069dd5195c86836adf9de61e67 /lib/ExecutionEngine/TargetSelect.cpp | |
| parent | 457ee1a12e2c52624af7fdb81cf938f6d8d96572 (diff) | |
[ObjCARC] Turn off ignoring unwind edges in ObjCARC when -fno-objc-arc-exception is enabled due to it's affect on correctness.
Specifically according to the semantics of ARC -fno-objc-arc-exception simply
states that it is expected that the unwind path out of a call *MAY* not release
objects. Thus we can have the situation where a release gets moved into a catch
block which we ignore when we remove a retain/release pair resulting in (even
though we assume the program is exiting anyways) the cleanup code path
potentially blowing up before program exit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172599 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/ExecutionEngine/TargetSelect.cpp')
0 files changed, 0 insertions, 0 deletions