Add some basic debug output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105561 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodePlacementOpt.cpp b/lib/CodeGen/CodePlacementOpt.cpp
index 3ff2a04..e0e315c 100644
--- a/lib/CodeGen/CodePlacementOpt.cpp
+++ b/lib/CodeGen/CodePlacementOpt.cpp
@@ -178,6 +178,8 @@
continue;
// Move the block.
+ DEBUG(dbgs() << "CGP: Moving blocks starting at BB#" << Pred->getNumber()
+ << " to top of loop.\n");
Changed = true;
// Move it and all the blocks that can reach it via fallthrough edges
@@ -297,6 +299,8 @@
continue;
// Move the block.
+ DEBUG(dbgs() << "CGP: Moving blocks starting at BB#" << BB->getNumber()
+ << " to be contiguous with loop.\n");
Changed = true;
// Process this block and all loop blocks contiguous with it, to keep