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better c99 struct handling 

llvm-svn: 27970
This commit is contained in:
Andrew Lenharth 2006-04-25 19:33:23 +00:00
parent a3f7583408
commit f5a713d273
1 changed files with 1 additions and 2 deletions
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3
llvm/lib/Analysis/DataStructure/Local.cpp
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@ -1122,13 +1122,12 @@ void GraphBuilder::MergeConstantInitIntoNode(DSNodeHandle &NH, Constant *C) {
for (unsigned i = 0, e = CS->getNumOperands(); i != e; ++i) {
DSNode *NHN = NH.getNode();
//Some programmers think ending a structure with a [0 x sbyte] is cute
//This should be ok as the allocation type should grow this type when
//it is merged in if it is bigger.
if (SL->MemberOffsets[i] < SL->StructSize) {
DSNodeHandle NewNH(NHN, NH.getOffset()+(unsigned)SL->MemberOffsets[i]);
MergeConstantInitIntoNode(NewNH, cast<Constant>(CS->getOperand(i)));
} else if (SL->MemberOffsets[i] == SL->StructSize) {
DEBUG(std::cerr << "Zero size element at end of struct\n");
NHN->foldNodeCompletely();
} else {
assert(0 && "type was smaller than offsets of of struct layout indicate");
}