From 464e807d41b73e960ca1aac901c9a320bc93eb60 Mon Sep 17 00:00:00 2001
From: Nadav Rotem <nrotem@apple.com>
Date: Wed, 27 Feb 2013 05:53:43 +0000
Subject: For each function that we optimize we initialize a new list of lib
 functions. For each function name we malloc memory. This patch changes the
 Libcall map to use BumpPtrAllocator. Now we malloc only once. This speeds up
 instcombine by a few % on a large c++ program.

llvm-svn: 176170
---
 llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp')

diff --git a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
index 8ad566c893c..9b39bf40c88 100644
--- a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
+++ b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
@@ -23,6 +23,7 @@
 #include "llvm/IR/Intrinsics.h"
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/Module.h"
+#include "llvm/Support/Allocator.h"
 #include "llvm/Target/TargetLibraryInfo.h"
 #include "llvm/Transforms/Utils/BuildLibCalls.h"
 
@@ -1672,7 +1673,7 @@ class LibCallSimplifierImpl {
   const TargetLibraryInfo *TLI;
   const LibCallSimplifier *LCS;
   bool UnsafeFPShrink;
-  StringMap<LibCallOptimization*> Optimizations;
+  StringMap<LibCallOptimization*, BumpPtrAllocator> Optimizations;
 
   // Fortified library call optimizations.
   MemCpyChkOpt MemCpyChk;
-- 
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