[llvm-commits] [llvm] r128467 - /llvm/trunk/lib/Target/ARM/ARMLoadStoreOptimizer.cpp

[Owen Anderson]

Author: resistor
Date: Tue Mar 29 12:42:25 2011
New Revision: 128467

URL: http://llvm.org/viewvc/llvm-project?rev=128467&view=rev
Log:
Add safety check that didn't show up in testing.

Modified:
    llvm/trunk/lib/Target/ARM/ARMLoadStoreOptimizer.cpp

Modified: llvm/trunk/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMLoadStoreOptimizer.cpp?rev=128467&r1=128466&r2=128467&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMLoadStoreOptimizer.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMLoadStoreOptimizer.cpp Tue Mar 29 12:42:25 2011
@@ -350,6 +350,7 @@
   bool isDef = (isi32Load(Opcode) || Opcode == ARM::VLDRS ||
                 Opcode == ARM::VLDRD);
   Opcode = getLoadStoreMultipleOpcode(Opcode, Mode);
+  if (!Opcode) return false;
   MachineInstrBuilder MIB = BuildMI(MBB, MBBI, dl, TII->get(Opcode))
     .addReg(Base, getKillRegState(BaseKill))
     .addImm(Pred).addReg(PredReg);