[llvm-commits] [llvm] r123339 - /llvm/trunk/lib/CodeGen/LiveDebugVariables.cpp

[Jakob Stoklund Olesen]

Author: stoklund
Date: Wed Jan 12 17:14:07 2011
New Revision: 123339

URL: http://llvm.org/viewvc/llvm-project?rev=123339&view=rev
Log:
Don't emit a DBG_VALUE for a spill slot that the rewriter decided not to use after all.

Modified:
    llvm/trunk/lib/CodeGen/LiveDebugVariables.cpp

Modified: llvm/trunk/lib/CodeGen/LiveDebugVariables.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/LiveDebugVariables.cpp?rev=123339&r1=123338&r2=123339&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/LiveDebugVariables.cpp (original)
+++ llvm/trunk/lib/CodeGen/LiveDebugVariables.cpp Wed Jan 12 17:14:07 2011
@@ -568,7 +568,8 @@
     if (VRM.isAssignedReg(VirtReg) &&
         TargetRegisterInfo::isPhysicalRegister(VRM.getPhys(VirtReg))) {
       Loc.substPhysReg(VRM.getPhys(VirtReg), TRI);
-    } else if (VRM.getStackSlot(VirtReg) != VirtRegMap::NO_STACK_SLOT) {
+    } else if (VRM.getStackSlot(VirtReg) != VirtRegMap::NO_STACK_SLOT &&
+               VRM.isSpillSlotUsed(VRM.getStackSlot(VirtReg))) {
       // FIXME: Translate SubIdx to a stackslot offset.
       Loc = MachineOperand::CreateFI(VRM.getStackSlot(VirtReg));
     } else {