Align function starts to target-specific bundle alignment.

src/IceCfg.cpp

 //===- subzero/src/IceCfg.cpp - Control flow graph 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 Cfg class, including constant pool
@@ skipping 296 matching lines @@
         << "\n\n";
   }
   Str << "\t.text\n";
   IceString MangledName = getContext()->mangleName(getFunctionName());
   if (Ctx->getFlags().FunctionSections)
     Str << "\t.section\t.text." << MangledName << ",\"ax\",@progbits\n";
   if (!getInternal()) {
     Str << "\t.globl\t" << MangledName << "\n";
     Str << "\t.type\t" << MangledName << ",@function\n";
   }
+  Str << "\t.p2align " << getTarget()->getBundleAlignLog2Bytes() << ",0x";
+  llvm::ArrayRef<uint8_t> Pad = getTarget()->getNonExecBundlePadding();
+  for (llvm::ArrayRef<uint8_t>::iterator I = Pad.begin(), E = Pad.end();
+       I != E; ++I) {
+    Str.write_hex(*I);
+  }
+  Str << "\n";
   for (NodeList::const_iterator I = Nodes.begin(), E = Nodes.end(); I != E;
        ++I) {
     (*I)->emit(this);
   }
   Str << "\n";
   T_emit.printElapsedUs(Ctx, "emit()");
 }
 
 // Dumps the IR with an optional introductory message.
 void Cfg::dump(const IceString &Message) {
@@ skipping 41 matching lines @@
   for (NodeList::const_iterator I = Nodes.begin(), E = Nodes.end(); I != E;
        ++I) {
     (*I)->dump(this);
   }
   if (getContext()->isVerbose(IceV_Instructions)) {
     Str << "}\n";
   }
 }
 
 } // end of namespace Ice