From: Michael Ilseman <milseman@apple.com>
Date: Mon, 17 Sep 2012 18:31:15 +0000 (+0000)
Subject: Increase the static sizes of some SmallSets. finalizeBundle() is very frequently... 
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=8dcc99496d9e32e13e30d6579b7af05f19e7c8d8;p=oota-llvm.git

Increase the static sizes of some SmallSets. finalizeBundle() is very frequently called for some backends, and growing into an std::set is overkill for these numbers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164044 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/MachineInstrBundle.cpp b/lib/CodeGen/MachineInstrBundle.cpp
index 7d49e73f99e..1f7fbfc719b 100644
--- a/lib/CodeGen/MachineInstrBundle.cpp
+++ b/lib/CodeGen/MachineInstrBundle.cpp
@@ -109,10 +109,10 @@ void llvm::finalizeBundle(MachineBasicBlock &MBB,
   MachineInstrBuilder MIB = BuildMI(MBB, FirstMI, FirstMI->getDebugLoc(),
                                     TII->get(TargetOpcode::BUNDLE));
 
-  SmallVector<unsigned, 8> LocalDefs;
-  SmallSet<unsigned, 8> LocalDefSet;
+  SmallVector<unsigned, 32> LocalDefs;
+  SmallSet<unsigned, 32> LocalDefSet;
   SmallSet<unsigned, 8> DeadDefSet;
-  SmallSet<unsigned, 8> KilledDefSet;
+  SmallSet<unsigned, 16> KilledDefSet;
   SmallVector<unsigned, 8> ExternUses;
   SmallSet<unsigned, 8> ExternUseSet;
   SmallSet<unsigned, 8> KilledUseSet;
@@ -181,7 +181,7 @@ void llvm::finalizeBundle(MachineBasicBlock &MBB,
     Defs.clear();
   }
 
-  SmallSet<unsigned, 8> Added;
+  SmallSet<unsigned, 32> Added;
   for (unsigned i = 0, e = LocalDefs.size(); i != e; ++i) {
     unsigned Reg = LocalDefs[i];
     if (Added.insert(Reg)) {