diff options
author | Cameron Zwarich <zwarich@apple.com> | 2011-01-03 04:07:46 +0000 |
---|---|---|
committer | Cameron Zwarich <zwarich@apple.com> | 2011-01-03 04:07:46 +0000 |
commit | 53eeba586dac8a25db63fe02a00ef10feb8b3925 (patch) | |
tree | 50fdb8d3ff37bc6955d02a53c6695e6b7174d796 | |
parent | 041ee7e6fa1a04e64371ece9225a984d9a6bdf4b (diff) | |
download | external_llvm-53eeba586dac8a25db63fe02a00ef10feb8b3925.zip external_llvm-53eeba586dac8a25db63fe02a00ef10feb8b3925.tar.gz external_llvm-53eeba586dac8a25db63fe02a00ef10feb8b3925.tar.bz2 |
Use a RecyclingAllocator to allocate values for MachineCSE's ScopedHashTable for
a 28% speedup of MachineCSE time on 403.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122735 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r-- | lib/CodeGen/MachineCSE.cpp | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/lib/CodeGen/MachineCSE.cpp b/lib/CodeGen/MachineCSE.cpp index fc3f594..bb1db86 100644 --- a/lib/CodeGen/MachineCSE.cpp +++ b/lib/CodeGen/MachineCSE.cpp @@ -25,6 +25,7 @@ #include "llvm/ADT/SmallSet.h" #include "llvm/ADT/Statistic.h" #include "llvm/Support/Debug.h" +#include "llvm/Support/RecyclingAllocator.h" using namespace llvm; @@ -65,10 +66,13 @@ namespace { private: const unsigned LookAheadLimit; - typedef ScopedHashTableScope<MachineInstr*, unsigned, - MachineInstrExpressionTrait> ScopeType; + typedef RecyclingAllocator<BumpPtrAllocator, + ScopedHashTableVal<MachineInstr*, unsigned> > AllocatorTy; + typedef ScopedHashTable<MachineInstr*, unsigned, + MachineInstrExpressionTrait, AllocatorTy> ScopedHTType; + typedef ScopedHTType::ScopeTy ScopeType; DenseMap<MachineBasicBlock*, ScopeType*> ScopeMap; - ScopedHashTable<MachineInstr*, unsigned, MachineInstrExpressionTrait> VNT; + ScopedHTType VNT; SmallVector<MachineInstr*, 64> Exps; unsigned CurrVN; |