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make the datastructure used in BytecodeWriter::outputValueSymbolTable

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*slightly* less abusive of memory.  This speeds up the bcwriter from
1.83s to 1.32s (39% faster) on 447.dealII.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34140 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-02-10 07:11:51 +00:00
parent f98aad66fa
commit b8cb5fe12c
1 changed files with 4 additions and 4 deletions
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8
lib/Bytecode/Writer/Writer.cpp
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@ -1086,14 +1086,14 @@ void BytecodeWriter::outputValueSymbolTable(const ValueSymbolTable &VST) {
true/*ElideIfEmpty*/);
// Organize the symbol table by type
typedef std::pair<std::string, const Value*> PlaneMapEntry;
typedef std::pair<const std::string*, const Value*> PlaneMapEntry;
typedef std::vector<PlaneMapEntry> PlaneMapVector;
typedef std::map<const Type*, PlaneMapVector > PlaneMap;
PlaneMap Planes;
for (ValueSymbolTable::const_iterator SI = VST.begin(), SE = VST.end();
SI != SE; ++SI)
Planes[SI->second->getType()].push_back(
std::make_pair(SI->first,SI->second));
Planes[SI->second->getType()]
.push_back(std::make_pair(&SI->first, SI->second));
for (PlaneMap::const_iterator PI = Planes.begin(), PE = Planes.end();
PI != PE; ++PI) {
@ -1112,7 +1112,7 @@ void BytecodeWriter::outputValueSymbolTable(const ValueSymbolTable &VST) {
for (; I != End; ++I) {
// Symtab entry: [def slot #][name]
output_vbr(Table.getSlot(I->second));
output(I->first);
output(*I->first);
}
}
}