diff options
| author | Daniel Berlin <dberlin@dberlin.org> | 2017-05-16 06:06:15 +0000 |
|---|---|---|
| committer | Daniel Berlin <dberlin@dberlin.org> | 2017-05-16 06:06:15 +0000 |
| commit | 629e1ff6e642e86e65aae5f365594cc0e8a156eb (patch) | |
| tree | 4f412ea2d95abc73401ab084734905b865834e20 /llvm/lib/Transforms | |
| parent | abd632dfeb17b47263294016094e3e2c521fa6c2 (diff) | |
| download | bcm5719-llvm-629e1ff6e642e86e65aae5f365594cc0e8a156eb.tar.gz bcm5719-llvm-629e1ff6e642e86e65aae5f365594cc0e8a156eb.zip | |
NewGVN: Use StoreExpression StoredValue instead of looking it up again, since it was already looked up when it was created
llvm-svn: 303144
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/NewGVN.cpp | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/llvm/lib/Transforms/Scalar/NewGVN.cpp b/llvm/lib/Transforms/Scalar/NewGVN.cpp index 6a03a83bd4c..5e0a705782e 100644 --- a/llvm/lib/Transforms/Scalar/NewGVN.cpp +++ b/llvm/lib/Transforms/Scalar/NewGVN.cpp @@ -1982,10 +1982,9 @@ void NewGVN::moveValueToNewCongruenceClass(Instruction *I, const Expression *E, if (NewClass->getStoreCount() == 0 && !NewClass->getStoredValue()) { // If it's a store expression we are using, it means we are not equivalent // to something earlier. - if (isa<StoreExpression>(E)) { - assert(lookupOperandLeader(SI->getValueOperand()) != - NewClass->getLeader()); - NewClass->setStoredValue(lookupOperandLeader(SI->getValueOperand())); + if (auto *SE = dyn_cast<StoreExpression>(E)) { + assert(SE->getStoredValue() != NewClass->getLeader()); + NewClass->setStoredValue(SE->getStoredValue()); markValueLeaderChangeTouched(NewClass); // Shift the new class leader to be the store DEBUG(dbgs() << "Changing leader of congruence class " @@ -2011,7 +2010,7 @@ void NewGVN::moveValueToNewCongruenceClass(Instruction *I, const Expression *E, // See if we destroyed the class or need to swap leaders. if (OldClass->empty() && OldClass != TOPClass) { if (OldClass->getDefiningExpr()) { - DEBUG(dbgs() << "Erasing expression " << OldClass->getDefiningExpr() + DEBUG(dbgs() << "Erasing expression " << *OldClass->getDefiningExpr() << " from table\n"); ExpressionToClass.erase(OldClass->getDefiningExpr()); } @@ -2090,7 +2089,7 @@ void NewGVN::performCongruenceFinding(Instruction *I, const Expression *E) { } else if (const auto *SE = dyn_cast<StoreExpression>(E)) { StoreInst *SI = SE->getStoreInst(); NewClass->setLeader(SI); - NewClass->setStoredValue(lookupOperandLeader(SI->getValueOperand())); + NewClass->setStoredValue(SE->getStoredValue()); // The RepMemoryAccess field will be filled in properly by the // moveValueToNewCongruenceClass call. } else { |
