[MC] Do not consider .ifdef/.ifndef as a use
authorScott Linder <scott@scottlinder.com>
Mon, 28 Jan 2019 19:32:08 +0000 (19:32 +0000)
committerScott Linder <scott@scottlinder.com>
Mon, 28 Jan 2019 19:32:08 +0000 (19:32 +0000)
commitb5d6292822c87dd66cc7646ddd9db180723a3233
treedb53f83763ccc2f96aeb3faa79ffa27e7fefda5d
parentff35dbac47119c84c0968ce1847b6661e7236ab2
[MC] Do not consider .ifdef/.ifndef as a use

This is allowed by GAS and seems correct.

Differential Revision: https://reviews.llvm.org/D55439

llvm-svn: 352414
llvm/lib/MC/MCParser/AsmParser.cpp
llvm/test/MC/AsmParser/ifdef.s
llvm/test/MC/AsmParser/ifndef.s