Shoaib Meenai 074728a2a9 [ObjCARC] Prevent code motion into a catchswitch ...

A catchswitch must be the only non-phi instruction in its basic block;
attempting to move a retain or release into a catchswitch basic block
will result in invalid IR. Explicitly mark a CFG hazard in this case to
prevent the code motion.

Differential Revision: https://reviews.llvm.org/D46482

llvm-svn: 332430

2018-05-16 04:52:18 +00:00

14 KiB

Raw Blame History

View Raw