Start adding an integrated assembler.

src/IceTargetLoweringX8632.cpp

Index: src/IceTargetLoweringX8632.cpp
diff --git a/src/IceTargetLoweringX8632.cpp b/src/IceTargetLoweringX8632.cpp
index b4e1b3ea41b8441c332489622e1b9d1e8879c10a..8a35f6021174b18882b8256b6db7138f38f82dfe 100644
--- a/src/IceTargetLoweringX8632.cpp
+++ b/src/IceTargetLoweringX8632.cpp
@@ -513,6 +513,14 @@ void TargetX8632::emitVariable(const Variable *Var, const Cfg *Func) const {
   Str << "]";
 }
 
+x86::Address TargetX8632::stackVarToAsmOperand(const Variable *Var) const {
+  assert(!Var->hasReg());
+  int32_t Offset = Var->getStackOffset();
+  if (!hasFramePointer())
+    Offset += getStackAdjustment();
+  return x86::Address(x86::Register(getFrameOrStackReg()), Offset);
+}
+
 void TargetX8632::lowerArguments() {
   VarList &Args = Func->getArgs();
   // The first four arguments of vector type, regardless of their