diff options
| -rw-r--r-- | lib/Analysis/LazyValueInfo.cpp | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/lib/Analysis/LazyValueInfo.cpp b/lib/Analysis/LazyValueInfo.cpp index d3a437f..6a7fd38 100644 --- a/lib/Analysis/LazyValueInfo.cpp +++ b/lib/Analysis/LazyValueInfo.cpp @@ -379,7 +379,7 @@ namespace { LVILatticeVal getEdgeValue(BasicBlock *FromBB, BasicBlock *ToBB); private: - LVILatticeVal &getCachedEntryForBlock(BasicBlock *BB); + LVILatticeVal getCachedEntryForBlock(BasicBlock *BB); }; } // end anonymous namespace @@ -402,14 +402,14 @@ void LazyValueInfoCache::LVIValueHandle::deleted() { /// getCachedEntryForBlock - See if we already have a value for this block. If /// so, return it, otherwise create a new entry in the Cache map to use. -LVILatticeVal &LVIQuery::getCachedEntryForBlock(BasicBlock *BB) { +LVILatticeVal LVIQuery::getCachedEntryForBlock(BasicBlock *BB) { NewBlockInfo.insert(BB); return Cache[BB]; } LVILatticeVal LVIQuery::getBlockValue(BasicBlock *BB) { // See if we already have a value for this block. - LVILatticeVal &BBLV = getCachedEntryForBlock(BB); + LVILatticeVal BBLV = getCachedEntryForBlock(BB); // If we've already computed this block's value, return it. if (!BBLV.isUndefined()) { @@ -421,6 +421,7 @@ LVILatticeVal LVIQuery::getBlockValue(BasicBlock *BB) { // lattice value to overdefined, so that cycles will terminate and be // conservatively correct. BBLV.markOverdefined(); + Cache[BB] = BBLV; // If V is live into BB, see if our predecessors know anything about it. Instruction *BBI = dyn_cast<Instruction>(Val); @@ -453,7 +454,7 @@ LVILatticeVal LVIQuery::getBlockValue(BasicBlock *BB) { // Return the merged value, which is more precise than 'overdefined'. assert(!Result.isOverdefined()); - return getCachedEntryForBlock(BB) = Result; + return Cache[BB] = Result; } // If this value is defined by an instruction in this block, we have to @@ -478,7 +479,7 @@ LVILatticeVal LVIQuery::getBlockValue(BasicBlock *BB) { // Return the merged value, which is more precise than 'overdefined'. assert(!Result.isOverdefined()); - return getCachedEntryForBlock(BB) = Result; + Cache[BB] = Result; } else { @@ -489,7 +490,7 @@ LVILatticeVal LVIQuery::getBlockValue(BasicBlock *BB) { LVILatticeVal Result; Result.markOverdefined(); - return getCachedEntryForBlock(BB) = Result; + return Result; } |