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Further reduce the number of nodes cloned with getClonedNH, using merge instead.

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This reduces the number of nodes allocated, then immediately merged and DNE'd
from 2193852 to 1298049.  unfortunately this only speeds DSA up by ~1.5s (of
53s), because it's spending most of its time waddling through the scalar map :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10992 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-01-28 02:11:49 +00:00
parent 00948c05b2
commit 239644dc3b
1 changed files with 1 additions and 1 deletions
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lib/Analysis/DataStructure/DataStructure.cpp
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@ -1070,7 +1070,7 @@ void DSGraph::updateFromGlobalGraph() {
if (InlinedGlobals.count(GV) == 0) { // GNode is not up-to-date
ScalarMapTy::iterator It = GlobalsGraph->ScalarMap.find(GV);
if (It != GlobalsGraph->ScalarMap.end())
RC.getClonedNH(It->second);
RC.merge(I->second, It->second);
}
// Merging global nodes leaves behind unused nodes: get rid of them now.