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Cache the size of the vector instead of calling .size() all over the place.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149368 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2012-01-31 06:57:53 +00:00
parent cac50c5ab8
commit 5d8ab0f02b
1 changed files with 5 additions and 5 deletions
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10
lib/Transforms/Scalar/GVN.cpp
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@ -1278,14 +1278,14 @@ bool GVN::processNonLocalLoad(LoadInst *LI) {
// If we had to process more than one hundred blocks to find the // If we had to process more than one hundred blocks to find the
// dependencies, this load isn't worth worrying about. Optimizing // dependencies, this load isn't worth worrying about. Optimizing
// it will be too expensive. // it will be too expensive.
if (Deps.size() > 100) unsigned NumDeps = Deps.size();
if (NumDeps > 100)
return false; return false;
// If we had a phi translation failure, we'll have a single entry which is a // If we had a phi translation failure, we'll have a single entry which is a
// clobber in the current block. Reject this early. // clobber in the current block. Reject this early.
if (Deps.size() == 1 if (NumDeps == 1 &&
&& !Deps[0].getResult().isDef() && !Deps[0].getResult().isClobber()) !Deps[0].getResult().isDef() && !Deps[0].getResult().isClobber()) {
{
DEBUG( DEBUG(
dbgs() << "GVN: non-local load "; dbgs() << "GVN: non-local load ";
WriteAsOperand(dbgs(), LI); WriteAsOperand(dbgs(), LI);
@ -1301,7 +1301,7 @@ bool GVN::processNonLocalLoad(LoadInst *LI) {
SmallVector<AvailableValueInBlock, 16> ValuesPerBlock; SmallVector<AvailableValueInBlock, 16> ValuesPerBlock;
SmallVector<BasicBlock*, 16> UnavailableBlocks; SmallVector<BasicBlock*, 16> UnavailableBlocks;
for (unsigned i = 0, e = Deps.size(); i != e; ++i) { for (unsigned i = 0, e = NumDeps; i != e; ++i) {
BasicBlock *DepBB = Deps[i].getBB(); BasicBlock *DepBB = Deps[i].getBB();
MemDepResult DepInfo = Deps[i].getResult(); MemDepResult DepInfo = Deps[i].getResult();