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, 10 insertions, 9 deletions

diff --git a/clang/lib/Frontend/ASTUnit.cpp b/clang/lib/Frontend/ASTUnit.cpp
index fe5eb4e5d19..df0d6d4fe5e 100644
--- a/clang/lib/Frontend/ASTUnit.cpp
+++ b/clang/lib/Frontend/ASTUnit.cpp
@@ -30,6 +30,7 @@
 #include "clang/Basic/IdentifierTable.h"
 #include "clang/Basic/LLVM.h"
 #include "clang/Basic/LangOptions.h"
+#include "clang/Basic/LangStandard.h"
 #include "clang/Basic/Module.h"
 #include "clang/Basic/SourceLocation.h"
 #include "clang/Basic/SourceManager.h"
@@ -1153,7 +1154,7 @@ bool ASTUnit::Parse(std::shared_ptr<PCHContainerOperations> PCHContainerOps,
              InputKind::Source &&
          "FIXME: AST inputs not yet supported here!");
   assert(Clang->getFrontendOpts().Inputs[0].getKind().getLanguage() !=
-             InputKind::LLVM_IR &&
+             Language::LLVM_IR &&
          "IR inputs not support here!");
 
   // Configure the various subsystems.
@@ -1586,7 +1587,7 @@ ASTUnit *ASTUnit::LoadFromCompilerInvocationAction(
              InputKind::Source &&
          "FIXME: AST inputs not yet supported here!");
   assert(Clang->getFrontendOpts().Inputs[0].getKind().getLanguage() !=
-             InputKind::LLVM_IR &&
+             Language::LLVM_IR &&
          "IR inputs not support here!");
 
   // Configure the various subsystems.
@@ -2210,7 +2211,7 @@ void ASTUnit::CodeComplete(
              InputKind::Source &&
          "FIXME: AST inputs not yet supported here!");
   assert(Clang->getFrontendOpts().Inputs[0].getKind().getLanguage() !=
-             InputKind::LLVM_IR &&
+             Language::LLVM_IR &&
          "IR inputs not support here!");
 
   // Use the source and file managers that we were given.
@@ -2667,17 +2668,17 @@ bool ASTUnit::isModuleFile() const {
 InputKind ASTUnit::getInputKind() const {
   auto &LangOpts = getLangOpts();
 
-  InputKind::Language Lang;
+  Language Lang;
   if (LangOpts.OpenCL)
-    Lang = InputKind::OpenCL;
+    Lang = Language::OpenCL;
   else if (LangOpts.CUDA)
-    Lang = InputKind::CUDA;
+    Lang = Language::CUDA;
   else if (LangOpts.RenderScript)
-    Lang = InputKind::RenderScript;
+    Lang = Language::RenderScript;
   else if (LangOpts.CPlusPlus)
-    Lang = LangOpts.ObjC ? InputKind::ObjCXX : InputKind::CXX;
+    Lang = LangOpts.ObjC ? Language::ObjCXX : Language::CXX;
   else
-    Lang = LangOpts.ObjC ? InputKind::ObjC : InputKind::C;
+    Lang = LangOpts.ObjC ? Language::ObjC : Language::C;
 
   InputKind::Format Fmt = InputKind::Source;
   if (LangOpts.getCompilingModule() == LangOptions::CMK_ModuleMap)