From b30f2f51410449a6d476fed5c486a4ef8fd5f912 Mon Sep 17 00:00:00 2001
From: Matthias Braun <matze@braunis.de>
Date: Sat, 30 Jan 2016 01:24:31 +0000
Subject: Avoid overly large SmallPtrSet/SmallSet

These sets perform linear searching in small mode so it is never a good
idea to use SmallSize/N bigger than 32.

llvm-svn: 259283
---
 llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp')

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 82397200e0d..952018e4e2f 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -669,7 +669,7 @@ void SelectionDAGISel::SelectBasicBlock(BasicBlock::const_iterator Begin,
 }
 
 void SelectionDAGISel::ComputeLiveOutVRegInfo() {
-  SmallPtrSet<SDNode*, 128> VisitedNodes;
+  SmallPtrSet<SDNode*, 16> VisitedNodes;
   SmallVector<SDNode*, 128> Worklist;
 
   Worklist.push_back(CurDAG->getRoot().getNode());
-- 
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