Subzero: Partial implementation of global initializers.

src/IceTargetLowering.cpp

 //===- subzero/src/IceTargetLowering.cpp - Basic lowering implementation --===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file implements the skeleton of the TargetLowering class,
@@ skipping 156 matching lines @@
   RegSetMask RegExclude = RegSet_None;
   RegInclude |= RegSet_CallerSave;
   RegInclude |= RegSet_CalleeSave;
   RegExclude |= RegSet_StackPointer;
   if (hasFramePointer())
     RegExclude |= RegSet_FramePointer;
   llvm::SmallBitVector RegMask = getRegisterSet(RegInclude, RegExclude);
   LinearScan.scan(RegMask);
 }
 
+TargetGlobalInitLowering *
+TargetGlobalInitLowering::createLowering(TargetArch Target,
+                                         GlobalContext *Ctx) {
+  // These statements can be #ifdef'd to specialize the code generator
+  // to a subset of the available targets.  TODO: use CRTP.
+  if (Target == Target_X8632)
+    return TargetGlobalInitX8632::create(Ctx);
+#if 0
+  if (Target == Target_X8664)
+    return IceTargetGlobalInitX8664::create(Ctx);
+  if (Target == Target_ARM32)
+    return IceTargetGlobalInitARM32::create(Ctx);
+  if (Target == Target_ARM64)
+    return IceTargetGlobalInitARM64::create(Ctx);
+#endif
+  llvm_unreachable("Unsupported target");
+  return NULL;
+}
+
 } // end of namespace Ice