Mention -ftls-model in release notes and manual.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160169 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/UsersManual.html b/docs/UsersManual.html
index 0ca0e53..130fcef 100644
--- a/docs/UsersManual.html
+++ b/docs/UsersManual.html
@@ -913,6 +913,16 @@
regardless of whether the target ISA has a trap instruction. This option is
useful for environments (e.g. deeply embedded) where a trap cannot be properly
handled, or when some custom behavior is desired.</dd>
+
+<dt id="opt_ftls-model"><b>-ftls-model=[model]</b>: Select which TLS model to
+use.</dt>
+<dd>Valid values are: <tt>global-dynamic</tt>, <tt>local-dynamic</tt>,
+<tt>initial-exec</tt> and <tt>local-exec</tt>. The default value is
+<tt>global-dynamic</tt>. The compiler may use a different model if the selected
+model is not supported by the target, or if a more efficient model can be used.
+The TLS model can be overridden per variable using the <tt>tls_model</tt>
+attribute.
+</dd>
</dl>
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