maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Fix the "partial pool allocator" on em3d and others. The problem is that 

DSNodes, unlike other GraphTraits nodes, can have null outgoing edges, and
df_iterator doesn't take this into consideration.  As a workaround, the
successor iterator now handles null nodes and 'indicates' that null has
no successors.

llvm-svn: 12025
This commit is contained in:
Chris Lattner 2004-03-01 01:42:26 +00:00
parent b4c203ce67
commit 482cf01a1e
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
llvm/include/llvm/Analysis/DSGraphTraits.h
View File

@ -33,10 +33,14 @@ class DSNodeIterator : public forward_iterator<const DSNode, ptrdiff_t> {
DSNodeIterator(NodeTy *N) : Node(N), Offset(0) {} // begin iterator
DSNodeIterator(NodeTy *N, bool) : Node(N) { // Create end iterator
Offset = N->getNumLinks() << DS::PointerShift;
if (Offset == 0 && Node->getForwardNode() &&
Node->isDeadNode()) // Model Forward link
Offset += DS::PointerSize;
if (N != 0) {
Offset = N->getNumLinks() << DS::PointerShift;
if (Offset == 0 && Node->getForwardNode() &&
Node->isDeadNode()) // Model Forward link
Offset += DS::PointerSize;
} else {
Offset = 0;
}
}
public:
DSNodeIterator(const DSNodeHandle &NH)