6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-14 11:32:34 +00:00
Code Issues Projects Releases Wiki Activity

Simplify code. No functionality change.

Browse Source 
Using DenseMap iterators isn't free as they have to check for empty
buckets. Dominator queries are common so this gives a minor speedup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147544 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer 2012-01-04 20:20:08 +00:00
parent 8a86887ba3
commit 34b5f0437b
1 changed files with 4 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
include/llvm/Analysis/Dominators.h
View File

@ -321,8 +321,7 @@ public:
/// block. This is the same as using operator[] on this class.
///
inline DomTreeNodeBase<NodeT> *getNode(NodeT *BB) const {
typename DomTreeNodeMapType::const_iterator I = DomTreeNodes.find(BB);
return I != DomTreeNodes.end() ? I->second : 0;
return DomTreeNodes.lookup(BB);
}
/// getRootNode - This returns the entry node for the CFG of the function. If
@ -623,9 +622,8 @@ protected:
}
DomTreeNodeBase<NodeT> *getNodeForBlock(NodeT *BB) {
typename DomTreeNodeMapType::iterator I = this->DomTreeNodes.find(BB);
if (I != this->DomTreeNodes.end() && I->second)
return I->second;
if (DomTreeNodeBase<NodeT> *Node = getNode(BB))
return Node;
// Haven't calculated this node yet? Get or calculate the node for the
// immediate dominator.
@ -641,8 +639,7 @@ protected:
}
inline NodeT *getIDom(NodeT *BB) const {
typename DenseMap<NodeT*, NodeT*>::const_iterator I = IDoms.find(BB);
return I != IDoms.end() ? I->second : 0;
return IDoms.lookup(BB);
}
inline void addRoot(NodeT* BB) {