--- a/docs/SegmentedStacks.rst	Thu Dec 12 15:22:36 2013 +0900
+++ b/docs/SegmentedStacks.rst	Mon Sep 08 22:06:00 2014 +0900
@@ -13,9 +13,8 @@
 done by allocating stack blocks (henceforth called *stacklets*) and linking them
 into a doubly linked list. The function prologue is responsible for checking if
 the current stacklet has enough space for the function to execute; and if not,
-call into the libgcc runtime to allocate more stack space. When using ``llc``,
-segmented stacks can be enabled by adding ``-segmented-stacks`` to the command
-line.
+call into the libgcc runtime to allocate more stack space. Segmented stacks are
+enabled with the ``"split-stack"`` attribute on LLVM functions.
 
 The runtime functionality is `already there in libgcc
 <http://gcc.gnu.org/wiki/SplitStacks>`_.