The TargetData is not used for the isPowerOfTwo determination. It has never

[oota-llvm.git] / include / llvm / Analysis / Loads.h

diff --git a/include/llvm/Analysis/Loads.h b/include/llvm/Analysis/Loads.h
index 1574262dd6d3dc281f0695a9760c88cf7ce244e3..afc90c2f7441034d39549be609d89349630001e6 100644 (file)
--- a/include/llvm/Analysis/Loads.h
+++ b/include/llvm/Analysis/Loads.h
@@ -19,14 +19,15 @@
 namespace llvm {
 
 class AliasAnalysis;
-class TargetData;
+class DataLayout;
+class MDNode;
 
 /// isSafeToLoadUnconditionally - Return true if we know that executing a load
 /// from this value cannot trap.  If it is not obviously safe to load from the
 /// specified pointer, we do a quick local scan of the basic block containing
 /// ScanFrom, to determine if the address is already accessed.
 bool isSafeToLoadUnconditionally(Value *V, Instruction *ScanFrom,
-                                 unsigned Align, const TargetData *TD = 0);
+                                 unsigned Align, const DataLayout *TD = 0);
 
 /// FindAvailableLoadedValue - Scan the ScanBB block backwards (starting at
 /// the instruction before ScanFrom) checking to see if we have the value at
@@ -41,10 +42,15 @@ bool isSafeToLoadUnconditionally(Value *V, Instruction *ScanFrom,
 /// MaxInstsToScan specifies the maximum instructions to scan in the block.
 /// If it is set to 0, it will scan the whole block. You can also optionally
 /// specify an alias analysis implementation, which makes this more precise.
+///
+/// If TBAATag is non-null and a load or store is found, the TBAA tag from the
+/// load or store is recorded there.  If there is no TBAA tag or if no access
+/// is found, it is left unmodified.
 Value *FindAvailableLoadedValue(Value *Ptr, BasicBlock *ScanBB,
                                 BasicBlock::iterator &ScanFrom,
                                 unsigned MaxInstsToScan = 6,
-                                AliasAnalysis *AA = 0);
+                                AliasAnalysis *AA = 0,
+                                MDNode **TBAATag = 0);
 
 }