Bring back note about not supporting global register variables.
authorMichael Kuperstein <mkuper@google.com>
Mon, 12 Dec 2016 19:11:39 +0000 (19:11 +0000)
committerMichael Kuperstein <mkuper@google.com>
Mon, 12 Dec 2016 19:11:39 +0000 (19:11 +0000)
commit94b25ecdc0af2025b65741df9938a20bd6a4a472
tree3b5634a8ed00a354f5ec3efe1b5fb9a1247fa61a
parent59e5cb4342748cb96aae2c1ea4d71167f4cac4f2
Bring back note about not supporting global register variables.

This was accidentally removed in r260506, even though we only support
non-allocatable global register variables. The general (allocatable) case
is explicitly not supported.

Differential Revision: https://reviews.llvm.org/D27473

llvm-svn: 289455
clang/docs/UsersManual.rst