Commit Graph

1 Commits

Author SHA1 Message Date
Reid Kleckner 392f062675 [sancov] Don't instrument blocks with no insertion point
This prevents crashes when attempting to instrument functions containing
C++ try.

Sanitizer coverage will still fail at runtime when an exception is
thrown through a sancov instrumented function, but that seems marginally
better than what we have now. The full solution is to color the blocks
in LLVM IR and only instrument blocks that have an unambiguous color,
using the appropriate token.

llvm-svn: 298662
2017-03-23 23:30:41 +00:00