[PATCH] D28727: Add -fstrict-vtable-pointers to UserManual
Piotr Padlewski via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Sun Jan 15 06:14:10 PST 2017
Prazek updated this revision to Diff 84489.
Prazek added a comment.
suggested fix
https://reviews.llvm.org/D28727
Files:
docs/UsersManual.rst
Index: docs/UsersManual.rst
===================================================================
--- docs/UsersManual.rst
+++ docs/UsersManual.rst
@@ -1097,6 +1097,12 @@
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, e.g. vptr is invariant during the lifetime of object.
+ This enables better devirtualization. Turned off by default.
+
.. option:: -ffast-math
Enable fast-math mode. This defines the ``__FAST_MATH__`` preprocessor
-------------- next part --------------
A non-text attachment was scrubbed...
Name: D28727.84489.patch
Type: text/x-patch
Size: 650 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20170115/254229b6/attachment.bin>
More information about the cfe-commits
mailing list