Documentation for #pragma clang loop directive and options vectorize and interleave.

Reviewed by: Aaron Ballman and Dmitri Gribenko


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211135 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 12 insertions, 1 deletions

diff --git a/include/clang/Basic/Attr.td b/include/clang/Basic/Attr.td
index ab83db206e..df4b38d331 100644
--- a/include/clang/Basic/Attr.td
+++ b/include/clang/Basic/Attr.td
@@ -1812,5 +1812,5 @@ def LoopHint : Attr {
   }
   }];
 
-  let Documentation = [Undocumented];
+  let Documentation = [LoopHintDocs];
 }
diff --git a/include/clang/Basic/AttrDocs.td b/include/clang/Basic/AttrDocs.td
index 7441fe5cfe..6c8c9a37ae 100644
--- a/include/clang/Basic/AttrDocs.td
+++ b/include/clang/Basic/AttrDocs.td
@@ -1012,3 +1012,14 @@ This attribute is incompatible with the ``always_inline`` attribute.
   }];
 }
 
+def LoopHintDocs : Documentation {
+  let Category = DocCatStmt;
+  let Content = [{
+The ``#pragma clang loop'' directive allows loop optimization hints to be
+specified for the subsequent loop. The directive allows vectorization
+and interleaving to be enabled or disabled, and the vector width and interleave
+count to be manually specified. See `language extensions
+<http://clang.llvm.org/docs/LanguageExtensions.html#extensions-for-loop-hint-optimizations>'_
+for details.
+  }];
+}