[lanai] Add Lanai backend.

Add the Lanai backend to lib/Target.

General Lanai backend discussion on llvm-dev thread "[RFC] Lanai backend" (http://lists.llvm.org/pipermail/llvm-dev/2016-February/095118.html).

Differential Revision: http://reviews.llvm.org/D17011



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264578 91177308-0d34-0410-b5e6-96231b3b80d8

CODE_OWNERS.TXT

@@ -142,6 +142,10 @@ N: Krzysztof Parzyszek
 E: [email protected]
 D: Hexagon Backend
 
+N: Jacques Pienaar
+E: [email protected]
+D: Lanai Backend
+
 N: Paul Robinson
 E: [email protected]
 D: Sony PlayStation®4 support

lib/ObjectYAML/ELFYAML.cpp

@@ -194,6 +194,7 @@ ScalarEnumerationTraits<ELFYAML::ELF_EM>::enumeration(IO &IO,
   ECase(EM_78KOR)
   ECase(EM_56800EX)
   ECase(EM_AMDGPU)
+  ECase(EM_LANAI)
 #undef ECase
 }
 
@@ -527,6 +528,9 @@ void ScalarEnumerationTraits<ELFYAML::ELF_REL>::enumeration(
   case ELF::EM_ARM:
 #include "llvm/Support/ELFRelocs/ARM.def"
     break;
+  case ELF::EM_LANAI:
+#include "llvm/Support/ELFRelocs/Lanai.def"
+    break;
   default:
     llvm_unreachable("Unsupported architecture");
   }

lib/Target/LLVMBuild.txt

@@ -25,6 +25,7 @@ subdirectories =
  AVR
  BPF
  CppBackend
+ Lanai
  Hexagon
  MSP430
  NVPTX

lib/Target/Lanai/AsmParser/CMakeLists.txt

@@ -0,0 +1,7 @@
+include_directories( ${CMAKE_CURRENT_BINARY_DIR}/.. ${CMAKE_CURRENT_SOURCE_DIR}/.. )
+
+add_llvm_library(LLVMLanaiAsmParser
+  LanaiAsmParser.cpp
+  )
+
+add_dependencies( LLVMLanaiAsmParser LanaiCommonTableGen )

lib/Target/Lanai/AsmParser/LLVMBuild.txt

@@ -0,0 +1,23 @@
+;===- ./lib/Target/Lanai/AsmParser/LLVMBuild.txt ----------------*- Conf -*-===;
+;
+;                     The LLVM Compiler Infrastructure
+;
+; This file is distributed under the University of Illinois Open Source
+; License. See LICENSE.TXT for details.
+;
+;===------------------------------------------------------------------------===;
+;
+; This is an LLVMBuild description file for the components in this subdirectory.
+;
+; For more information on the LLVMBuild system, please see:
+;
+;   http://llvm.org/docs/LLVMBuild.html
+;
+;===------------------------------------------------------------------------===;
+
+[component_0]
+type = Library
+name = LanaiAsmParser
+parent = Lanai
+required_libraries = MC MCParser Support LanaiMCTargetDesc LanaiInfo
+add_to_library_groups = Lanai