Index: external/gpl3/gcc.old/dist/gcc/doc/invoke.texi
===================================================================
RCS file: /cvsroot/src/external/gpl3/gcc.old/dist/gcc/doc/invoke.texi,v
retrieving revision 1.6
diff -p -u -r1.6 invoke.texi
--- external/gpl3/gcc.old/dist/gcc/doc/invoke.texi	13 Nov 2017 08:05:20 -0000	1.6
+++ external/gpl3/gcc.old/dist/gcc/doc/invoke.texi	27 Mar 2018 08:15:19 -0000
@@ -23214,6 +23214,42 @@ permits the correct alignment of COMMON 
 used when generating code.  It is enabled by default if
 GCC detects that the target assembler found during configuration
 supports the feature.
+
+@item -mindirect-branch=@var{choice}
+@opindex -mindirect-branch
+Convert indirect call and jump with @var{choice}.  The default is
+@samp{keep}, which keeps indirect call and jump unmodified.
+@samp{thunk} converts indirect call and jump to call and return thunk.
+@samp{thunk-inline} converts indirect call and jump to inlined call
+and return thunk.  @samp{thunk-extern} converts indirect call and jump
+to external call and return thunk provided in a separate object file.
+You can control this behavior for a specific function by using the
+function attribute @code{indirect_branch}.  @xref{Function Attributes}.
+
+Note that @option{-mcmodel=large} is incompatible with
+@option{-mindirect-branch=thunk} nor
+@option{-mindirect-branch=thunk-extern} since the thunk function may
+not be reachable in large code model.
+
+@item -mfunction-return=@var{choice}
+@opindex -mfunction-return
+Convert function return with @var{choice}.  The default is @samp{keep},
+which keeps function return unmodified.  @samp{thunk} converts function
+return to call and return thunk.  @samp{thunk-inline} converts function
+return to inlined call and return thunk.  @samp{thunk-extern} converts
+function return to external call and return thunk provided in a separate
+object file.  You can control this behavior for a specific function by
+using the function attribute @code{function_return}.
+@xref{Function Attributes}.
+
+Note that @option{-mcmodel=large} is incompatible with
+@option{-mfunction-return=thunk} nor
+@option{-mfunction-return=thunk-extern} since the thunk function may
+not be reachable in large code model.
+
+@item -mindirect-branch-register
+@opindex -mindirect-branch-register
+Force indirect call and jump via register.
 @end table
 
 See also under @ref{x86 Options} for standard options.