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Eliminate the old LateResolveValues data structure, replacing it with a

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new, simpler, ForwardReferences data structure.  This is just the first
simple replacement, subsequent changes will improve the code more.

This simple change improves the performance of loading a file from HDF5
(contributed by Bill) from 2.36s to 1.93s, a 22% improvement.  This
presumably has to do with the fact that we only create ONE placeholder for
a particular forward referenced values, and also may be because the data
structure is much simpler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8979 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2003-10-09 06:05:40 +00:00
parent 13eb87162a
commit 8eb10cef39
2 changed files with 27 additions and 25 deletions
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4
lib/Bytecode/Reader/ReaderInternals.h
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@ -57,7 +57,6 @@ public:
}
void freeState() {
freeTable(Values);
freeTable(LateResolveValues);
freeTable(ModuleValues);
}
@ -100,8 +99,9 @@ private:
bool hasInternalMarkerOnly; // Only types of linkage are intern/external
typedef std::vector<ValueList*> ValueTable;
ValueTable Values, LateResolveValues;
ValueTable Values;
ValueTable ModuleValues;
std::map<std::pair<unsigned,unsigned>, Value*> ForwardReferences;
std::vector<BasicBlock*> ParsedBasicBlocks;