Move the DebugEmissionKind enum from DIBuilder into DICompileUnit.

This mostly cosmetic patch moves the DebugEmissionKind enum from DIBuilder
into DICompileUnit. DIBuilder is not the right place for this enum to live
in — a metadata consumer should not have to include DIBuilder.h.
I also added a Verifier check that checks that the emission kind of a
DICompileUnit is actually legal.

http://reviews.llvm.org/D18612
<rdar://problem/25427165>

llvm-svn: 265077

1 files changed, 5 insertions, 1 deletions

diff --git a/llvm/lib/AsmParser/LLLexer.cpp b/llvm/lib/AsmParser/LLLexer.cpp
index 46ffc642ec6..5ad5ddd52a0 100644
--- a/llvm/lib/AsmParser/LLLexer.cpp
+++ b/llvm/lib/AsmParser/LLLexer.cpp
@@ -787,11 +787,15 @@ lltok::Kind LLLexer::LexIdentifier() {
   DWKEYWORD(OP, DwarfOp);
   DWKEYWORD(MACINFO, DwarfMacinfo);
 #undef DWKEYWORD
-
   if (Keyword.startswith("DIFlag")) {
     StrVal.assign(Keyword.begin(), Keyword.end());
     return lltok::DIFlag;
   }
+  if (Keyword == "NoDebug" || Keyword == "FullDebug" ||
+      Keyword == "LineTablesOnly") {
+    StrVal.assign(Keyword.begin(), Keyword.end());
+    return lltok::EmissionKind;
+  }
 
   // Check for [us]0x[0-9A-Fa-f]+ which are Hexadecimal constant generated by
   // the CFE to avoid forcing it to deal with 64-bit numbers.