[X86] Make folding table checking threadsafe
authorBenjamin Kramer <benny.kra@googlemail.com>
Wed, 27 Jun 2018 21:01:53 +0000 (21:01 +0000)
committerBenjamin Kramer <benny.kra@googlemail.com>
Wed, 27 Jun 2018 21:01:53 +0000 (21:01 +0000)
commite214f046af3ae7313a1a868615e728233a00e3b7
treee0c24313b2200a0e2e282480aa5f86f13cab2fab
parent880e34ed45aa1bfae2648d5d3426e6525fafecff
[X86] Make folding table checking threadsafe

This is a benign race, but tsan likes to complain about it. Just make it
happy.

llvm-svn: 335788
llvm/lib/Target/X86/X86InstrInfo.cpp