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[unroll] Tidy up the integer we use to accumululate the number of 

instructions optimized. NFC, just separating this out from the
functionality changing commit.

llvm-svn: 229026
This commit is contained in:
Chandler Carruth 2015-02-13 02:10:56 +00:00
parent 1c93116489
commit 302a133b1e
1 changed files with 5 additions and 2 deletions
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7
llvm/lib/Transforms/Scalar/LoopUnrollPass.cpp
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@ -330,12 +330,14 @@ class UnrollAnalyzer : public InstVisitor<UnrollAnalyzer, bool> {
unsigned TripCount;
ScalarEvolution &SE;
const TargetTransformInfo &TTI;
unsigned NumberOfOptimizedInstructions;
DenseMap<Value *, Constant *> SimplifiedValues;
DenseMap<LoadInst *, Value *> LoadBaseAddresses;
SmallPtrSet<Instruction *, 32> CountedInsns;
/// \brief Count the number of optimized instructions.
unsigned NumberOfOptimizedInstructions;
// Provide base case for our instruction visit.
bool visitInstruction(Instruction &I) { return false; };
// TODO: We should also visit ICmp, FCmp, GetElementPtr, Trunc, ZExt, SExt,
@ -456,8 +458,8 @@ public:
SmallVector<Instruction *, 8> Worklist;
SimplifiedValues.clear();
CountedInsns.clear();
NumberOfOptimizedInstructions = 0;
// We start by adding all loads to the worklist.
for (auto LoadDescr : LoadBaseAddresses) {
LoadInst *LI = LoadDescr.first;
@ -500,6 +502,7 @@ public:
NumberOfOptimizedInstructions = 0;
SmallVector<Instruction *, 8> Worklist;
SmallPtrSet<Instruction *, 16> DeadInstructions;
// Start by initializing worklist with simplified instructions.
for (auto Folded : SimplifiedValues) {
if (auto FoldedInsn = dyn_cast<Instruction>(Folded.first)) {