PR10092 (second try): Don't crash on a load without a momoperand; fast-isel creates...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132826 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp
index 18d71da47410193810d3fb17bb883dd051518da4..e2016eb2d6fb6f4fffc98382d14bc438d3ab2ef3 100644 (file)
--- a/lib/Target/X86/X86InstrInfo.cpp
+++ b/lib/Target/X86/X86InstrInfo.cpp
@@ -2420,7 +2420,7 @@ MachineInstr* X86InstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
       Alignment = 4;
       break;
     default:
-      llvm_unreachable("Don't know how to fold this instruction!");
+      return 0;
     }
   if (Ops.size() == 2 && Ops[0] == 0 && Ops[1] == 1) {
     unsigned NewOpc = 0;