[LLVMdev] atomic memoperand patch

[Mon P Wang]

Just noticed that when we generate a custom lowering for some atomics  
that we forgot to transfer the MemOperand to the new instruction that  
touches memory.

   -- Mon Ping

Index: lib/Target/X86/X86ISelLowering.cpp
===================================================================
--- lib/Target/X86/X86ISelLowering.cpp	(revision 53702)
+++ lib/Target/X86/X86ISelLowering.cpp	(working copy)
@@ -6010,7 +6010,9 @@
    for (int i=0; i <= lastAddrIndx; ++i)
      (*MIB).addOperand(*argOpers[i]);
    MIB.addReg(t2);
-
+  assert(bInstr->hasOneMemOperand() && "Unexpected number of  
memoperand");
+  (*MIB).addMemOperand(*F, *bInstr->memoperands_begin());
+
    MIB = BuildMI(newMBB, TII->get(X86::MOV32rr), destOper.getReg());
    MIB.addReg(X86::EAX);

@@ -6107,6 +6109,8 @@
    for (int i=0; i <= lastAddrIndx; ++i)
      (*MIB).addOperand(*argOpers[i]);
    MIB.addReg(t3);
+  assert(mInstr->hasOneMemOperand() && "Unexpected number of  
memoperand");
+  (*MIB).addMemOperand(*F, *mInstr->memoperands_begin());

    MIB = BuildMI(newMBB, TII->get(X86::MOV32rr), destOper.getReg());
    MIB.addReg(X86::EAX);