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Performance: Simple upgrade/cleanup of stl c++11 containers (10% perf. increase).

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This commit is contained in:
John Kessenich 2015-07-18 22:34:27 -06:00
parent f4673162b7
commit 2f273369e4
10 changed files with 58 additions and 54 deletions
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12
glslang/MachineIndependent/Scan.cpp
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@ -39,6 +39,8 @@
//
#include <string.h>
#include <unordered_map>
#include <unordered_set>
#include "../Include/Types.h"
#include "SymbolTable.h"
@ -293,8 +295,8 @@ namespace {
// A single global usable by all threads, by all versions, by all languages.
// After a single process-level initialization, this is read only and thread safe
std::map<std::string, int>* KeywordMap = 0;
std::set<std::string>* ReservedSet = 0;
std::unordered_map<std::string, int>* KeywordMap = 0;
std::unordered_set<std::string>* ReservedSet = 0;
};
@ -307,7 +309,7 @@ void TScanContext::fillInKeywordMap()
// but, the only risk is if two threads called simultaneously
return;
}
KeywordMap = new std::map<std::string, int>;
KeywordMap = new std::unordered_map<std::string, int>;
(*KeywordMap)["const"] = CONST;
(*KeywordMap)["uniform"] = UNIFORM;
@ -476,7 +478,7 @@ void TScanContext::fillInKeywordMap()
(*KeywordMap)["resource"] = RESOURCE;
(*KeywordMap)["superp"] = SUPERP;
ReservedSet = new std::set<std::string>;
ReservedSet = new std::unordered_set<std::string>;
ReservedSet->insert("common");
ReservedSet->insert("partition");
@ -610,7 +612,7 @@ int TScanContext::tokenizeIdentifier()
if (ReservedSet->find(tokenText) != ReservedSet->end())
return reservedWord();
std::map<std::string, int>::const_iterator it = KeywordMap->find(tokenText);
auto it = KeywordMap->find(tokenText);
if (it == KeywordMap->end()) {
// Should have an identifier of some sort
return identifierOrType();