make the datastructure used in BytecodeWriter::outputValueSymbolTable
*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
diff --git a/lib/Bytecode/Writer/Writer.cpp b/lib/Bytecode/Writer/Writer.cpp
index 1c42044..bdd3ca4 100644
--- a/lib/Bytecode/Writer/Writer.cpp
+++ b/lib/Bytecode/Writer/Writer.cpp
@@ -1086,14 +1086,14 @@
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 @@
for (; I != End; ++I) {
// Symtab entry: [def slot #][name]
output_vbr(Table.getSlot(I->second));
- output(I->first);
+ output(*I->first);
}
}
}