add new apis for getting/setting !dbg metadata on

instructions.  In addition to being a convenience,
they are faster than the old apis, particularly when
not going from an MDKindID like people should be
doing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99982 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 11 insertions, 2 deletions

diff --git a/include/llvm/Instruction.h b/include/llvm/Instruction.h
index 41841126b3..472ab83f2e 100644
--- a/include/llvm/Instruction.h
+++ b/include/llvm/Instruction.h
@@ -156,6 +156,16 @@ public:
   void setMetadata(unsigned KindID, MDNode *Node);
   void setMetadata(const char *Kind, MDNode *Node);
 
+  /// setDbgMetadata - This is just an optimized helper function that is
+  /// equivalent to setMetadata("dbg", Node);
+  void setDbgMetadata(MDNode *Node);
+  
+  /// getDbgMetadata - This is just an optimized helper function that is
+  /// equivalent to calling getMetadata("dbg").
+  MDNode *getDbgMetadata() const {
+    return DbgInfo;
+  }
+  
 private:
   /// hasMetadataHashEntry - Return true if we have an entry in the on-the-side
   /// metadata hash.
diff --git a/include/llvm/Support/ValueHandle.h b/include/llvm/Support/ValueHandle.h
index 0e61d093b9..130a620ab2 100644
--- a/include/llvm/Support/ValueHandle.h
+++ b/include/llvm/Support/ValueHandle.h
@@ -284,8 +284,7 @@ class TrackingVH : public ValueHandleBase {
     Value *VP = ValueHandleBase::getValPtr();
 
     // Null is always ok.
-    if (!VP)
-        return;
+    if (!VP) return;
 
     // Check that this value is valid (i.e., it hasn't been deleted). We
     // explicitly delay this check until access to avoid requiring clients to be