Mark invariant.group as experimental
Differential Revision: https://reviews.llvm.org/D33235
llvm-svn: 329531
diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst
index 8bef503..963a66f 100644
--- a/llvm/docs/LangRef.rst
+++ b/llvm/docs/LangRef.rst
@@ -5313,7 +5313,8 @@
'``invariant.group``' Metadata
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-The ``invariant.group`` metadata may be attached to ``load``/``store`` instructions.
+The experimental ``invariant.group`` metadata may be attached to
+``load``/``store`` instructions.
The existence of the ``invariant.group`` metadata on the instruction tells
the optimizer that every ``load`` and ``store`` to the same pointer operand
within the same invariant group can be assumed to load or store the same
@@ -5363,6 +5364,8 @@
; if %x mustalias %y then we can replace the above instruction with
%v = load i8, i8* %y
+Note that this is an experimental feature, which means that its semantics might
+change in the future.
'``type``' Metadata
^^^^^^^^^^^^^^^^^^^
@@ -12923,7 +12926,8 @@
The '``llvm.invariant.group.barrier``' intrinsic can be used when an invariant
established by invariant.group metadata no longer holds, to obtain a new pointer
-value that does not carry the invariant information.
+value that does not carry the invariant information. It is an experimental
+intrinsic, which means that its semantics might change in the future.
Arguments: