aboutsummaryrefslogtreecommitdiff
path: root/include/llvm/Transforms
diff options
context:
space:
mode:
Diffstat (limited to 'include/llvm/Transforms')
-rw-r--r--include/llvm/Transforms/Utils/BasicBlockUtils.h6
-rw-r--r--include/llvm/Transforms/Utils/Local.h27
2 files changed, 4 insertions, 29 deletions
diff --git a/include/llvm/Transforms/Utils/BasicBlockUtils.h b/include/llvm/Transforms/Utils/BasicBlockUtils.h
index 6105416a40..7dc2b94dc4 100644
--- a/include/llvm/Transforms/Utils/BasicBlockUtils.h
+++ b/include/llvm/Transforms/Utils/BasicBlockUtils.h
@@ -25,7 +25,6 @@ namespace llvm {
class Instruction;
class Pass;
class AliasAnalysis;
-class ValueDeletionListener;
/// DeleteDeadBlock - Delete the specified block, which must have no
/// predecessors.
@@ -41,9 +40,8 @@ void FoldSingleEntryPHINodes(BasicBlock *BB);
/// DeleteDeadPHIs - Examine each PHI in the given block and delete it if it
/// is dead. Also recursively delete any operands that become dead as
/// a result. This includes tracing the def-use list from the PHI to see if
-/// it is ultimately unused or if it reaches an unused cycle. If a
-/// ValueDeletionListener is specified, it is notified of the deletions.
-void DeleteDeadPHIs(BasicBlock *BB, ValueDeletionListener *VDL = 0);
+/// it is ultimately unused or if it reaches an unused cycle.
+void DeleteDeadPHIs(BasicBlock *BB);
/// MergeBlockIntoPredecessor - Attempts to merge a block into its predecessor,
/// if possible. The return value indicates success or failure.
diff --git a/include/llvm/Transforms/Utils/Local.h b/include/llvm/Transforms/Utils/Local.h
index 4cb46b0c4b..5ea1a500c5 100644
--- a/include/llvm/Transforms/Utils/Local.h
+++ b/include/llvm/Transforms/Utils/Local.h
@@ -50,40 +50,17 @@ bool ConstantFoldTerminator(BasicBlock *BB);
///
bool isInstructionTriviallyDead(Instruction *I);
-/// ValueDeletionListener - A simple abstract interface for delivering
-/// notifications when Values are deleted.
-///
-/// @todo Consider whether ValueDeletionListener can be made obsolete by
-/// requiring clients to use CallbackVH instead.
-class ValueDeletionListener {
-public:
- /// ValueWillBeDeleted - This method is called shortly before the specified
- /// value will be deleted.
- virtual void ValueWillBeDeleted(Value *V) = 0;
-
-protected:
- virtual ~ValueDeletionListener();
-};
-
/// RecursivelyDeleteTriviallyDeadInstructions - If the specified value is a
/// trivially dead instruction, delete it. If that makes any of its operands
/// trivially dead, delete them too, recursively.
-///
-/// If a ValueDeletionListener is specified, it is notified of instructions that
-/// are actually deleted (before they are actually deleted).
-void RecursivelyDeleteTriviallyDeadInstructions(Value *V,
- ValueDeletionListener *VDL = 0);
+void RecursivelyDeleteTriviallyDeadInstructions(Value *V);
/// RecursivelyDeleteDeadPHINode - If the specified value is an effectively
/// dead PHI node, due to being a def-use chain of single-use nodes that
/// either forms a cycle or is terminated by a trivially dead instruction,
/// delete it. If that makes any of its operands trivially dead, delete them
/// too, recursively.
-///
-/// If a ValueDeletionListener is specified, it is notified of instructions that
-/// are actually deleted (before they are actually deleted).
-void RecursivelyDeleteDeadPHINode(PHINode *PN,
- ValueDeletionListener *VDL = 0);
+void RecursivelyDeleteDeadPHINode(PHINode *PN);
//===----------------------------------------------------------------------===//
// Control Flow Graph Restructuring.