diff options
Diffstat (limited to 'include/llvm/Analysis/MemoryDependenceAnalysis.h')
| -rw-r--r-- | include/llvm/Analysis/MemoryDependenceAnalysis.h | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/include/llvm/Analysis/MemoryDependenceAnalysis.h b/include/llvm/Analysis/MemoryDependenceAnalysis.h index 8a5b07e..ac92b90 100644 --- a/include/llvm/Analysis/MemoryDependenceAnalysis.h +++ b/include/llvm/Analysis/MemoryDependenceAnalysis.h @@ -156,12 +156,18 @@ namespace llvm { /// ValueIsLoadPair - This is a pair<Value*, bool> where the bool is true if /// the dependence is a read only dependence, false if read/write. typedef PointerIntPair<Value*, 1, bool> ValueIsLoadPair; - + + /// BBSkipFirstBlockPair - This pair is used when caching information for a + /// block. If the pointer is null, the cache value is not a full query that + /// starts at the specified block. If non-null, the bool indicates whether + /// or not the contents of the block was skipped. + typedef PointerIntPair<BasicBlock*, 1, bool> BBSkipFirstBlockPair; + /// CachedNonLocalPointerInfo - This map stores the cached results of doing /// a pointer lookup at the bottom of a block. The key of this map is the /// pointer+isload bit, the value is a list of <bb->result> mappings. - typedef DenseMap<ValueIsLoadPair, - std::pair<BasicBlock*, NonLocalDepInfo> > CachedNonLocalPointerInfo; + typedef DenseMap<ValueIsLoadPair, std::pair<BBSkipFirstBlockPair, + NonLocalDepInfo> > CachedNonLocalPointerInfo; CachedNonLocalPointerInfo NonLocalPointerDeps; // A map from instructions to their non-local pointer dependencies. @@ -259,10 +265,11 @@ namespace llvm { MemDepResult getCallSiteDependencyFrom(CallSite C, bool isReadOnlyCall, BasicBlock::iterator ScanIt, BasicBlock *BB); - void getNonLocalPointerDepFromBB(Value *Pointer, uint64_t Size, + bool getNonLocalPointerDepFromBB(Value *Pointer, uint64_t Size, bool isLoad, BasicBlock *BB, SmallVectorImpl<NonLocalDepEntry> &Result, - SmallPtrSet<BasicBlock*, 64> &Visited); + DenseMap<BasicBlock*, Value*> &Visited, + bool SkipFirstBlock = false); MemDepResult GetNonLocalInfoForBlock(Value *Pointer, uint64_t PointeeSize, bool isLoad, BasicBlock *BB, NonLocalDepInfo *Cache, |