From 0d23725a8d602a007cda3fe9529e444543789446 Mon Sep 17 00:00:00 2001
From: Pekka Jaaskelainen <pekka.jaaskelainen@tut.fi>
Date: Wed, 13 Feb 2013 18:08:57 +0000
Subject: Metadata for annotating loops as parallel. The first consumer for
 this metadata is the loop vectorizer.

See the documentation update for more info.

llvm-svn: 175060
---
 llvm/lib/Transforms/Vectorize/LoopVectorize.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'llvm/lib/Transforms')

diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index 9fb451b0a99..842ae0291e2 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -2276,6 +2276,14 @@ void LoopVectorizationLegality::collectLoopUniforms() {
 }
 
 bool LoopVectorizationLegality::canVectorizeMemory() {
+
+  if (TheLoop->isAnnotatedParallel()) {
+    DEBUG(dbgs()
+          << "LV: A loop annotated parallel, ignore memory dependency "
+          << "checks.\n");
+    return true;
+  }
+
   typedef SmallVector<Value*, 16> ValueVector;
   typedef SmallPtrSet<Value*, 16> ValueSet;
   // Holds the Load and Store *instructions*.
-- 
cgit v1.2.3