Enable scalar replacement of AllocaInst whose one of the user is dbg info.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64207 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/include/llvm/Transforms/Utils/Local.h b/include/llvm/Transforms/Utils/Local.h
index 35d2c0ce7e..73389124b8 100644
--- a/include/llvm/Transforms/Utils/Local.h
+++ b/include/llvm/Transforms/Utils/Local.h
@@ -25,6 +25,7 @@ class PHINode;
 class AllocaInst;
 class ConstantExpr;
 class TargetData;
+class DbgInfoIntrinsic;
 
 template<typename T> class SmallVectorImpl;
   
@@ -94,6 +95,11 @@ AllocaInst *DemoteRegToStack(Instruction &X, bool VolatileLoads = false,
 /// The phi node is deleted and it returns the pointer to the alloca inserted. 
 AllocaInst *DemotePHIToStack(PHINode *P, Instruction *AllocaPoint = 0);
 
+/// OnlyUsedByDbgIntrinsics - Return true if the instruction I is only used
+/// by DbgIntrinsics. If DbgInUses is specified then the vector is filled 
+/// with DbgInfoIntrinsic that use the instruction I.
+bool OnlyUsedByDbgInfoIntrinsics(Instruction *I, 
+                           SmallVectorImpl<DbgInfoIntrinsic *> *DbgInUses = 0);
 } // End llvm namespace
 
 #endif