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Make PointerSize & Shift be enums 

Fix problem with recursive merging

llvm-svn: 4570
This commit is contained in:
Chris Lattner 2002-11-06 18:01:39 +00:00
parent 075a8d7341
commit 2b79f4b7c3
1 changed files with 1 additions and 6 deletions
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7
llvm/lib/Analysis/DataStructure/DataStructure.cpp
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@ -20,11 +20,6 @@ namespace {
Statistic<> NumFolds("dsnode", "Number of nodes completely folded"); Statistic<> NumFolds("dsnode", "Number of nodes completely folded");
}; };
namespace DS {
const unsigned PointerShift = 3; // 64bit ptrs = 3, 32 bit ptrs = 2
const unsigned PointerSize = 1 << PointerShift;
};
namespace DataStructureAnalysis { // TODO: FIXME namespace DataStructureAnalysis { // TODO: FIXME
// isPointerType - Return true if this first class type is big enough to hold // isPointerType - Return true if this first class type is big enough to hold
// a pointer. // a pointer.
@ -392,7 +387,7 @@ void DSNode::mergeWith(const DSNodeHandle &NH, unsigned Offset) {
} }
N = NH.getNode(); N = NH.getNode();
if (this == N) return; if (this == N || N == 0) return;
// If both nodes are not at offset 0, make sure that we are merging the node // If both nodes are not at offset 0, make sure that we are merging the node
// at an later offset into the node with the zero offset. // at an later offset into the node with the zero offset.