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Two changes:

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1. Functions do not make things incomplete, only variables
 2. Constant global variables no longer need to be marked incomplete, because
    we are guaranteed that the initializer for the global will be in the
    graph we are hacking on now.  This makes resolution of indirect calls happen
    a lot more in the bu pass, supports things like vtables and the C counterparts
    (giant constant arrays of function pointers), etc...

Testcase here: test/Regression/Analysis/DSGraph/constant_globals.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11852 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-02-25 23:36:08 +00:00
parent 26b6dac640
commit cf14e71c5e
1 changed files with 4 additions and 1 deletions
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5
lib/Analysis/DataStructure/DataStructure.cpp
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@ -13,6 +13,7 @@
#include "llvm/Analysis/DSGraph.h"
#include "llvm/Function.h"
#include "llvm/GlobalVariable.h"
#include "llvm/iOther.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Target/TargetData.h"
@ -1353,7 +1354,9 @@ void DSGraph::markIncompleteNodes(unsigned Flags) {
if ((Flags & DSGraph::IgnoreGlobals) == 0)
for (DSScalarMap::global_iterator I = ScalarMap.global_begin(),
E = ScalarMap.global_end(); I != E; ++I)
markIncompleteNode(ScalarMap[*I].getNode());
if (GlobalVariable *GV = dyn_cast<GlobalVariable>(*I))
if (!GV->isConstant())
markIncompleteNode(ScalarMap[GV].getNode());
}
static inline void killIfUselessEdge(DSNodeHandle &Edge) {