Revert "Use a simpler data structure to calculate the least recently used register...

[oota-llvm.git] / lib / CodeGen / RegisterScavenging.cpp

diff --git a/lib/CodeGen/RegisterScavenging.cpp b/lib/CodeGen/RegisterScavenging.cpp
index d34b701db94710a5a77eacb8a4861451a0dc24cd..179984f2a998a15949ba3f39f2418360f1365de6 100644 (file)
--- a/lib/CodeGen/RegisterScavenging.cpp
+++ b/lib/CodeGen/RegisterScavenging.cpp
@@ -136,6 +136,9 @@ void RegScavenger::forward() {
     ScavengeRestore = NULL;
   }
 
+  if (MI->isDebugValue())
+    return;
+
   // Find out which registers are early clobbered, killed, defined, and marked
   // def-dead in this instruction.
   BitVector EarlyClobberRegs(NumPhysRegs);