Move LangStandard*, InputKind::Language to Basic

This patch is a prerequisite for using LangStandard from Driver in
https://reviews.llvm.org/D64793.

It moves LangStandard* and InputKind::Language to Basic.  It is mostly
mechanical, with only a few changes of note:

- enum Language has been changed into enum class Language : uint8_t to
  avoid a clash between OpenCL in enum Language and OpenCL in enum
  LangFeatures and not to increase the size of class InputKind.

- Now that getLangStandardForName, which is currently unused, also checks
  both canonical and alias names, I've introduced a helper getLangKind
  which factors out a code pattern already used 3 times.

The patch has been tested on x86_64-pc-solaris2.11, sparcv9-sun-solaris2.11,
and x86_64-pc-linux-gnu.

There's a companion patch for lldb which uses LangStandard.h
(https://reviews.llvm.org/D65717).

While polly includes isl which in turn uses InputKind::C, that part of the
code isn't even built inside the llvm tree.  I've posted a patch to allow
for both InputKind::C and Language::C upstream
(https://groups.google.com/forum/#!topic/isl-development/6oEvNWOSQFE).

Differential Revision: https://reviews.llvm.org/D65562

llvm-svn: 367864

1 files changed, 0 insertions, 42 deletions

diff --git a/clang/lib/Frontend/LangStandards.cpp b/clang/lib/Frontend/LangStandards.cpp
deleted file mode 100644
index 05087eb41f0..00000000000
--- a/clang/lib/Frontend/LangStandards.cpp
+++ /dev/null
@@ -1,42 +0,0 @@
-//===--- LangStandards.cpp - Language Standard Definitions ----------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "clang/Frontend/LangStandard.h"
-#include "llvm/ADT/StringSwitch.h"
-#include "llvm/Support/ErrorHandling.h"
-using namespace clang;
-using namespace clang::frontend;
-
-#define LANGSTANDARD(id, name, lang, desc, features) \
-static const LangStandard Lang_##id = { name, desc, features, InputKind::lang };
-#include "clang/Frontend/LangStandards.def"
-
-const LangStandard &LangStandard::getLangStandardForKind(Kind K) {
-  switch (K) {
-  case lang_unspecified:
-    llvm::report_fatal_error("getLangStandardForKind() on unspecified kind");
-#define LANGSTANDARD(id, name, lang, desc, features) \
-    case lang_##id: return Lang_##id;
-#include "clang/Frontend/LangStandards.def"
-  }
-  llvm_unreachable("Invalid language kind!");
-}
-
-const LangStandard *LangStandard::getLangStandardForName(StringRef Name) {
-  Kind K = llvm::StringSwitch<Kind>(Name)
-#define LANGSTANDARD(id, name, lang, desc, features) \
-    .Case(name, lang_##id)
-#include "clang/Frontend/LangStandards.def"
-    .Default(lang_unspecified);
-  if (K == lang_unspecified)
-    return nullptr;
-
-  return &getLangStandardForKind(K);
-}
-
-