From: Jakob Stoklund Olesen <stoklund@2pi.dk>
Date: Fri, 29 Jul 2011 22:10:27 +0000 (+0000)
Subject: Enable compact region splitting by default.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=9162abb39f13146c0dea159e92ac291e4ea900bf;p=oota-llvm.git

Enable compact region splitting by default.

This helps generate better code in functions with high register
pressure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136528 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/RegAllocGreedy.cpp b/lib/CodeGen/RegAllocGreedy.cpp
index 239c8e43595..9bc26518704 100644
--- a/lib/CodeGen/RegAllocGreedy.cpp
+++ b/lib/CodeGen/RegAllocGreedy.cpp
@@ -52,7 +52,7 @@ STATISTIC(NumGlobalSplits, "Number of split global live ranges");
 STATISTIC(NumLocalSplits,  "Number of split local live ranges");
 STATISTIC(NumEvicted,      "Number of interferences evicted");
 
-cl::opt<bool> CompactRegions("compact-regions");
+cl::opt<bool> CompactRegions("compact-regions", cl::init(true));
 
 static RegisterRegAlloc greedyRegAlloc("greedy", "greedy register allocator",
                                        createGreedyRegisterAllocator);