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Refactor SymbolTableListTraits to only have a single pointer in it, instead

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of two.  This shrinkifies Function by 8 bytes (104->96) and Module by 8
bytes (68->60).  On a testcase of mine, this reduces the memory used to
read a module header from 565680b to 561024, a little over 4K.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36188 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2007-04-17 03:26:42 +00:00
parent 205c27d4a9
commit 17fcdd5e1b
13 changed files with 138 additions and 113 deletions
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17
include/llvm/Module.h
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@ -26,18 +26,20 @@ class GlobalValueRefMap; // Used by ConstantVals.cpp
class FunctionType;
template<> struct ilist_traits<Function>
: public SymbolTableListTraits<Function, Module, Module> {
: public SymbolTableListTraits<Function, Module> {
// createSentinel is used to create a node that marks the end of the list.
static Function *createSentinel();
static void destroySentinel(Function *F) { delete F; }
static iplist<Function> &getList(Module *M);
static inline ValueSymbolTable *getSymTab(Module *M);
};
template<> struct ilist_traits<GlobalVariable>
: public SymbolTableListTraits<GlobalVariable, Module, Module> {
: public SymbolTableListTraits<GlobalVariable, Module> {
// createSentinel is used to create a node that marks the end of the list.
static GlobalVariable *createSentinel();
static void destroySentinel(GlobalVariable *GV) { delete GV; }
static iplist<GlobalVariable> &getList(Module *M);
static inline ValueSymbolTable *getSymTab(Module *M);
};
/// A Module instance is used to store all the information related to an
@ -319,6 +321,17 @@ inline std::ostream &operator<<(std::ostream &O, const Module &M) {
return O;
}
inline ValueSymbolTable *
ilist_traits<Function>::getSymTab(Module *M) {
return M ? &M->getValueSymbolTable() : 0;
}
inline ValueSymbolTable *
ilist_traits<GlobalVariable>::getSymTab(Module *M) {
return M ? &M->getValueSymbolTable() : 0;
}
} // End llvm namespace
#endif