Add a LLVM_DUMP_METHOD macro.

The motivation is to mark dump methods as used in debug builds so that they can
be called from lldb, but to not do so in release builds so that they can be
dead-stripped.

There's lots of potential follow-up work suggested in the thread
"Should dump methods be LLVM_ATTRIBUTE_USED only in debug builds?" on cfe-dev,
but everyone seems to agreen on this subset.

Macro name chosen by fair coin toss.

llvm-svn: 198456

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/CodeGen/MachineBlockPlacement.cpp b/llvm/lib/CodeGen/MachineBlockPlacement.cpp
index f297c5f6786..760033fff13 100644
--- a/llvm/lib/CodeGen/MachineBlockPlacement.cpp
+++ b/llvm/lib/CodeGen/MachineBlockPlacement.cpp
@@ -152,7 +152,7 @@ public:
 
 #ifndef NDEBUG
   /// \brief Dump the blocks in this chain.
-  void dump() LLVM_ATTRIBUTE_USED {
+  LLVM_DUMP_METHOD void dump() {
     for (iterator I = begin(), E = end(); I != E; ++I)
       (*I)->dump();
   }