[llvm] r174586 - Update Release notes regarding TTI.

[Nadav Rotem]

Author: nadav
Date: Wed Feb  6 23:44:58 2013
New Revision: 174586

URL: http://llvm.org/viewvc/llvm-project?rev=174586&view=rev
Log:
Update Release notes regarding TTI.

Modified:
    llvm/trunk/docs/ReleaseNotes.rst

Modified: llvm/trunk/docs/ReleaseNotes.rst
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/ReleaseNotes.rst?rev=174586&r1=174585&r2=174586&view=diff
==============================================================================
--- llvm/trunk/docs/ReleaseNotes.rst (original)
+++ llvm/trunk/docs/ReleaseNotes.rst Wed Feb  6 23:44:58 2013
@@ -67,6 +67,13 @@ Non-comprehensive list of changes in thi
 
   We've also improved the X86 and ARM cost model.
 
+  TargetTransformInfo
+  -------------------
+  TargetTransformInto (TTI) is a new interface that can be used by IR-level passes
+  to obtain target-specific information, such as the costs of instructions. Only "Lowering"
+  passes such as LSR and the vectorizer are allowed to use the TTI infrastructure.
+
+
 * ... next change ...
 
 .. NOTE