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switch an std::set over to a SmallPtrSet, speeding up mem2reg 6% on 176.gcc.

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llvm-svn: 33929
This commit is contained in:
Chris Lattner 2007-02-05 22:15:21 +00:00
parent 19e7a5695d
commit 9a99e6ee24
1 changed files with 1 additions and 1 deletions
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lib/Transforms/Utils/PromoteMemoryToRegister.cpp
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@ -84,7 +84,7 @@ namespace {
/// Visited - The set of basic blocks the renamer has already visited.
///
std::set<BasicBlock*> Visited;
SmallPtrSet<BasicBlock*, 16> Visited;
/// BBNumbers - Contains a stable numbering of basic blocks to avoid
/// non-determinstic behavior.