[PATCH] D96270: [release][docs] Update contributions to LLVM 12 for scalable vectors.

[David Sherwood via Phabricator via cfe-commits]

david-arm updated this revision to Diff 322316.

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D96270/new/

https://reviews.llvm.org/D96270

Files:
  clang/docs/ReleaseNotes.rst


Index: clang/docs/ReleaseNotes.rst
===================================================================
--- clang/docs/ReleaseNotes.rst
+++ clang/docs/ReleaseNotes.rst
@@ -144,6 +144,18 @@
 
 - ...
 
+Modified Pragmas in Clang
+-------------------------
+
+- The "#pragma clang loop vectorize_width" has been extended to support an
+  optional 'fixed|scalable' argument, which can be used to indicate that the
+  compiler should use fixed-width or scalable vectorization.  Fixed-width is
+  assumed by default.
+
+  Scalable or vector length agnostic vectorization is an experimental feature
+  for targets that support scalable vectors. For more information please refer
+  to the Clang Language Extensions documentation.
+
 Attribute Changes in Clang
 --------------------------
 


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