[PATCH] D28727: Add -fstrict-vtable-pointers to UserManual

Piotr Padlewski via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Sat Jan 14 02:10:24 PST 2017

Prazek created this revision.
Prazek added a reviewer: hans.
Prazek added a subscriber: cfe-commits.

It would be good to merge it to 4.0 branch.



Index: docs/UsersManual.rst
--- docs/UsersManual.rst
+++ docs/UsersManual.rst
@@ -1097,6 +1097,11 @@
    the behavior of sanitizers in the ``cfi`` group to allow checking
    of cross-DSO virtual and indirect calls.
+.. option:: -f[no-]strict-vtable-pointers
+   Enable optimizations based on the strict rules for overwriting polymorphic
+   C++ objects. This enables better devirtualization. Turned off by default.
 .. option:: -ffast-math
    Enable fast-math mode. This defines the ``__FAST_MATH__`` preprocessor

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