commit 3b7d917dec53a742fcb14802557ee75d35185968
author Jakob Stoklund Olesen <stoklund@2pi.dk> Wed Apr 20 22:14:20 2011 +0000
committer Jakob Stoklund Olesen <stoklund@2pi.dk> Wed Apr 20 22:14:20 2011 +0000
tree 681aea6f3a0796c561b21edeb65478422e6f1565
parent 08c5a347a05e73a34c70ec8b694b1e89b96a6bf5

Add debug output for rematerializable instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129883 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/InlineSpiller.cpp

diff --git a/lib/CodeGen/InlineSpiller.cpp b/lib/CodeGen/InlineSpiller.cpp
index bcbe718..0a785565 100644
--- a/lib/CodeGen/InlineSpiller.cpp
+++ b/lib/CodeGen/InlineSpiller.cpp
@@ -420,8 +420,10 @@
       }
       if (!DefMI && !VNI->isPHIDef())
         DefMI = LIS.getInstructionFromIndex(VNI->def);
-      if (DefMI)
-        Edit->checkRematerializable(VNI, DefMI, TII, AA);
+      if (DefMI && Edit->checkRematerializable(VNI, DefMI, TII, AA)) {
+        DEBUG(dbgs() << "Value " << PrintReg(Reg) << ':' << VNI->id << '@'
+                     << VNI->def << " may remat from " << *DefMI);
+      }
     }
   }
 }