[llvm-commits] [llvm] r160219 - /llvm/trunk/lib/CodeGen/InlineSpiller.cpp

[Jakob Stoklund Olesen]

Author: stoklund
Date: Sat Jul 14 13:45:35 2012
New Revision: 160219

URL: http://llvm.org/viewvc/llvm-project?rev=160219&view=rev
Log:
Account for early-clobber reload instructions.

No test case, there are no in-tree targets that require this.

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

Modified: llvm/trunk/lib/CodeGen/InlineSpiller.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/InlineSpiller.cpp?rev=160219&r1=160218&r2=160219&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/InlineSpiller.cpp (original)
+++ llvm/trunk/lib/CodeGen/InlineSpiller.cpp Sat Jul 14 13:45:35 2012
@@ -1081,6 +1081,10 @@
                            MRI.getRegClass(NewLI.reg), &TRI);
   --MI; // Point to load instruction.
   SlotIndex LoadIdx = LIS.InsertMachineInstrInMaps(MI).getRegSlot();
+  // Some (out-of-tree) targets have EC reload instructions.
+  if (MachineOperand *MO = MI->findRegisterDefOperand(NewLI.reg))
+    if (MO->isEarlyClobber())
+      LoadIdx = LoadIdx.getRegSlot(true);
   DEBUG(dbgs() << "\treload:  " << LoadIdx << '\t' << *MI);
   VNInfo *LoadVNI = NewLI.getNextValue(LoadIdx, LIS.getVNInfoAllocator());
   NewLI.addRange(LiveRange(LoadIdx, Idx, LoadVNI));