From d0e9d04ab04d862392cbc84543ad9d77c58eb966 Mon Sep 17 00:00:00 2001 From: David Greene Date: Fri, 29 Jul 2011 19:07:14 +0000 Subject: [PATCH] [AVX] Make StringInit Unique Use a StringMap to ensure the StringInits are unique. This is especially important for AVX where we will have many smallish strings representing instruction prefixes, suffixes and the like. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136491 91177308-0d34-0410-b5e6-96231b3b80d8 --- utils/TableGen/Record.cpp | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/utils/TableGen/Record.cpp b/utils/TableGen/Record.cpp index 54edfe5ea8f..ee5db4713dc 100644 --- a/utils/TableGen/Record.cpp +++ b/utils/TableGen/Record.cpp @@ -21,6 +21,7 @@ #include "llvm/ADT/SmallVector.h" #include "llvm/ADT/STLExtras.h" #include "llvm/ADT/StringExtras.h" +#include "llvm/ADT/StringMap.h" using namespace llvm; @@ -565,7 +566,12 @@ IntInit::convertInitializerBitRange(const std::vector &Bits) const { } const StringInit *StringInit::get(const std::string &V) { - return new StringInit(V); + typedef StringMap Pool; + static Pool ThePool; + + StringInit *&I = ThePool[V]; + if (!I) I = new StringInit(V); + return I; } const CodeInit *CodeInit::get(const std::string &V) { -- 2.34.1