[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.
@@ -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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