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Give dagcombiner's worklist some inline capacity.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152454 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer 2012-03-10 00:23:58 +00:00
parent d229b7b8f4
commit d5f7690651
1 changed files with 2 additions and 3 deletions
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5
lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@ -80,7 +80,7 @@ namespace {
// visit, we pop off the order stack until we find an item that is
// also in the contents set. All operations are O(log N).
SmallPtrSet<SDNode*, 64> WorkListContents;
std::vector<SDNode*> WorkListOrder;
SmallVector<SDNode*, 64> WorkListOrder;
// AA - Used for DAG load/store alias analysis.
AliasAnalysis &AA;
@ -1005,8 +1005,7 @@ void DAGCombiner::Run(CombineLevel AtLevel) {
// worklist *should* contain, and check the node we want to visit is should
// actually be visited.
do {
N = WorkListOrder.back();
WorkListOrder.pop_back();
N = WorkListOrder.pop_back_val();
} while (!WorkListContents.erase(N));
// If N has no uses, it is dead. Make sure to revisit all N's operands once