[PATCH] D42146: libcxx: Disable CFI in function std::get_temporary_buffer.

[Peter Collingbourne via Phabricator via llvm-commits]

pcc created this revision.
pcc added reviewers: mclow.lists, EricWF.

The specification of this function mandates a cast to uninitialized
T*, which is forbidden under CFI.


https://reviews.llvm.org/D42146

Files:
  libcxx/include/memory


Index: libcxx/include/memory
===================================================================
--- libcxx/include/memory
+++ libcxx/include/memory
@@ -1992,6 +1992,7 @@
 };
 
 template <class _Tp>
+_LIBCPP_NO_CFI
 pair<_Tp*, ptrdiff_t>
 get_temporary_buffer(ptrdiff_t __n) _NOEXCEPT
 {


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