From 5d93fdfa898fb1fcfd574770362e5c79ba2deb2b Mon Sep 17 00:00:00 2001
From: Krzysztof Parzyszek <kparzysz@codeaurora.org>
Date: Tue, 27 Mar 2018 16:14:11 +0000
Subject: [LV] Add TTI::shouldMaximizeVectorBandwidth to allow enabling it per
 target

The default implementation returns false and keeps the current behavior.

Differential Revision: https://reviews.llvm.org/D44735

llvm-svn: 328632
---
 llvm/lib/Transforms/Vectorize/LoopVectorize.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'llvm/lib/Transforms')

diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index ba07ebe1e51..a80c7f94e8d 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -6139,7 +6139,8 @@ LoopVectorizationCostModel::computeFeasibleMaxVF(bool OptForSize,
   }
 
   unsigned MaxVF = MaxVectorSize;
-  if (MaximizeBandwidth && !OptForSize) {
+  if (TTI.shouldMaximizeVectorBandwidth(OptForSize) ||
+      (MaximizeBandwidth && !OptForSize)) {
     // Collect all viable vectorization factors larger than the default MaxVF
     // (i.e. MaxVectorSize).
     SmallVector<unsigned, 8> VFs;
-- 
cgit v1.2.3