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When we complete the bottom-up pass, make sure to merge the globals in 'main' into

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the globals graph.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11562 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-02-17 19:06:47 +00:00
parent 3c5df2612c
commit 28a631d37e
1 changed files with 17 additions and 0 deletions
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17
lib/Analysis/DataStructure/BottomUpClosure.cpp
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@ -57,6 +57,23 @@ bool BUDataStructures::run(Module &M) {
NumCallEdges += ActualCallees.size();
// At the end of the BU phase, clone the BU graph for main into the globals
// graph to make sure it has everything.
if (MainFunc) {
DSGraph &MainGraph = getOrCreateGraph(MainFunc);
DSScalarMap &MainSM = MainGraph.getScalarMap();
ReachabilityCloner RC(*GlobalsGraph, MainGraph, DSGraph::StripAllocaBit);
// Clone everything reachable from globals in the "main" graph into the
// globals graph.
for (DSScalarMap::global_iterator I = MainSM.global_begin(),
E = MainSM.global_end(); I != E; ++I)
RC.getClonedNH(MainSM[*I]);
}
// At the end of the bottom-up pass, the globals graph becomes complete.
// FIXME: This is not the right way to do this, but it is sorta better than
// nothing! In particular, externally visible globals and unresolvable call