Update LLVM sources to r73879.

2 files changed, 14 insertions, 4 deletions

diff --git a/include/llvm/Transforms/Scalar.h b/include/llvm/Transforms/Scalar.h
index 2c3fdd4..971baee 100644
--- a/include/llvm/Transforms/Scalar.h
+++ b/include/llvm/Transforms/Scalar.h
@@ -143,10 +143,10 @@ Pass *createLoopIndexSplitPass();
 // this pass is:
 //
 //        FROM CODE                           TO CODE
-//   %X = alloca int, uint 1                 ret int 42
-//   store int 42, int *%X
-//   %Y = load int* %X
-//   ret int %Y
+//   %X = alloca i32, i32 1                 ret i32 42
+//   store i32 42, i32 *%X
+//   %Y = load i32* %X
+//   ret i32 %Y
 //
 FunctionPass *createPromoteMemoryToRegisterPass();
 extern const PassInfo *const PromoteMemoryToRegisterID;
diff --git a/include/llvm/Transforms/Utils/Local.h b/include/llvm/Transforms/Utils/Local.h
index 5ea1a50..7ab8721 100644
--- a/include/llvm/Transforms/Utils/Local.h
+++ b/include/llvm/Transforms/Utils/Local.h
@@ -31,6 +31,16 @@ struct DbgInfoIntrinsic;
 template<typename T> class SmallVectorImpl;
   
 //===----------------------------------------------------------------------===//
+//  Local analysis.
+//
+
+/// 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);
+
+//===----------------------------------------------------------------------===//
 //  Local constant propagation.
 //