mzolotukhin updated this revision to Diff 34521. mzolotukhin added a comment.
- Remove paragraph about changing program behavior (since we shouldn't change it anyway). http://reviews.llvm.org/D12785 Files: docs/LanguageExtensions.rst Index: docs/LanguageExtensions.rst =================================================================== --- docs/LanguageExtensions.rst +++ docs/LanguageExtensions.rst @@ -1778,6 +1778,26 @@ For these reasons the higher level atomic primitives should be preferred where possible. +Non-temporal load/store builtins +-------------------------------- + +Clang provides overloaded builtins allowing to generate non-temporal memory +accesses. + +.. code-block:: c + + T __builtin_nontemporal_load(T *addr); + void __builtin_nontemporal_store(T value, T *addr); + +The types ``T`` currently supported are: + +* Integer types. +* Floating-point types. +* Vector types. + +Note that the compiler does not guarantee that non-temporal loads or stores +would be used. + Non-standard C++11 Attributes =============================
Index: docs/LanguageExtensions.rst =================================================================== --- docs/LanguageExtensions.rst +++ docs/LanguageExtensions.rst @@ -1778,6 +1778,26 @@ For these reasons the higher level atomic primitives should be preferred where possible. +Non-temporal load/store builtins +-------------------------------- + +Clang provides overloaded builtins allowing to generate non-temporal memory +accesses. + +.. code-block:: c + + T __builtin_nontemporal_load(T *addr); + void __builtin_nontemporal_store(T value, T *addr); + +The types ``T`` currently supported are: + +* Integer types. +* Floating-point types. +* Vector types. + +Note that the compiler does not guarantee that non-temporal loads or stores +would be used. + Non-standard C++11 Attributes =============================
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