[asan] Restore check removed by r332033
authorWalter Lee <waltl@google.com>
Wed, 16 May 2018 23:23:56 +0000 (23:23 +0000)
committerWalter Lee <waltl@google.com>
Wed, 16 May 2018 23:23:56 +0000 (23:23 +0000)
commit3bf63c920185530df55a8b0c42158febfbb5450d
tree436081d2fa65509cbfe10bcc5c5bf4326058aaaf
parent5a0872c2b751fd339e10c1b9d29ed4a9e62a323d
[asan] Restore check removed by r332033

Needed by fiber handling code, and possibly other code paths.

Differential Revision: https://reviews.llvm.org/D46981

llvm-svn: 332553
compiler-rt/lib/asan/asan_thread.h