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Move some sets and maps to SmallPtrSet and DenseMap respectively. This 

reduces the time to optimize 403.gcc from 17.6s to 16.4s.

llvm-svn: 40036
This commit is contained in:
Owen Anderson 2007-07-19 03:32:44 +00:00
parent 186e0d8b0a
commit 6a4ff8549b
1 changed files with 7 additions and 8 deletions
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15
llvm/lib/Transforms/Scalar/GVNPRE.cpp
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@ -39,7 +39,6 @@
#include <deque>
#include <map>
#include <vector>
#include <set>
using namespace llvm;
//===----------------------------------------------------------------------===//
@ -655,12 +654,12 @@ namespace {
SmallPtrSet<Value*, 16>& currTemps) ;
bool buildsets_anticout(BasicBlock* BB,
ValueNumberedSet& anticOut,
std::set<BasicBlock*>& visited) ;
SmallPtrSet<BasicBlock*, 8>& visited) ;
unsigned buildsets_anticin(BasicBlock* BB,
ValueNumberedSet& anticOut,
ValueNumberedSet& currExps,
SmallPtrSet<Value*, 16>& currTemps,
std::set<BasicBlock*>& visited) ;
SmallPtrSet<BasicBlock*, 8>& visited) ;
void buildsets(Function& F) ;
void insertion_pre(Value* e, BasicBlock* BB,
@ -1351,7 +1350,7 @@ void GVNPRE::buildsets_availout(BasicBlock::iterator I,
/// set as a function of the ANTIC_IN set of the block's predecessors
bool GVNPRE::buildsets_anticout(BasicBlock* BB,
ValueNumberedSet& anticOut,
std::set<BasicBlock*>& visited) {
SmallPtrSet<BasicBlock*, 8>& visited) {
if (BB->getTerminator()->getNumSuccessors() == 1) {
if (BB->getTerminator()->getSuccessor(0) != BB &&
visited.count(BB->getTerminator()->getSuccessor(0)) == 0) {
@ -1398,7 +1397,7 @@ unsigned GVNPRE::buildsets_anticin(BasicBlock* BB,
ValueNumberedSet& anticOut,
ValueNumberedSet& currExps,
SmallPtrSet<Value*, 16>& currTemps,
std::set<BasicBlock*>& visited) {
SmallPtrSet<BasicBlock*, 8>& visited) {
ValueNumberedSet& anticIn = anticipatedIn[BB];
unsigned old = anticIn.size();
@ -1439,8 +1438,8 @@ unsigned GVNPRE::buildsets_anticin(BasicBlock* BB,
/// buildsets - Phase 1 of the main algorithm. Construct the AVAIL_OUT
/// and the ANTIC_IN sets.
void GVNPRE::buildsets(Function& F) {
std::map<BasicBlock*, ValueNumberedSet> generatedExpressions;
std::map<BasicBlock*, SmallPtrSet<Value*, 16> > generatedTemporaries;
DenseMap<BasicBlock*, ValueNumberedSet> generatedExpressions;
DenseMap<BasicBlock*, SmallPtrSet<Value*, 16> > generatedTemporaries;
DominatorTree &DT = getAnalysis<DominatorTree>();
@ -1471,7 +1470,7 @@ void GVNPRE::buildsets(Function& F) {
// Phase 1, Part 2: calculate ANTIC_IN
std::set<BasicBlock*> visited;
SmallPtrSet<BasicBlock*, 8> visited;
SmallPtrSet<BasicBlock*, 4> block_changed;
for (Function::iterator FI = F.begin(), FE = F.end(); FI != FE; ++FI)
block_changed.insert(FI);