Revert a series of commits starting at r228886 which is triggering some

regressions for LLDB on Linux. Rafael indicated on lldb-dev that we
should just go ahead and revert these but that he wasn't at a computer.
The patches backed out are as follows:

r228980: Add support for having multiple sections with the name and ...
r228889: Invert the section relocation map.
r228888: Use the existing SymbolTableIndex intsead of doing a lookup.
r228886: Create the Section -> Rel Section map when it is first needed.

These patches look pretty nice to me, so hoping its not too hard to get
them re-instated. =D

llvm-svn: 229080

1 files changed, 2 insertions, 12 deletions

diff --git a/llvm/lib/MC/MCParser/ELFAsmParser.cpp b/llvm/lib/MC/MCParser/ELFAsmParser.cpp
index 7a120a1..21c65ce 100644
--- a/llvm/lib/MC/MCParser/ELFAsmParser.cpp
+++ b/llvm/lib/MC/MCParser/ELFAsmParser.cpp
@@ -378,8 +378,6 @@ bool ELFAsmParser::ParseSectionArguments(bool IsPush, SMLoc loc) {
   unsigned Flags = 0;
   const MCExpr *Subsection = nullptr;
   bool UseLastGroup = false;
-  StringRef UniqueStr;
-  bool Unique = false;
 
   // Set the defaults first.
   if (SectionName == ".fini" || SectionName == ".init" ||
@@ -464,14 +462,6 @@ bool ELFAsmParser::ParseSectionArguments(bool IsPush, SMLoc loc) {
             return TokError("Linkage must be 'comdat'");
         }
       }
-      if (getLexer().is(AsmToken::Comma)) {
-        Lex();
-        if (getParser().parseIdentifier(UniqueStr))
-          return TokError("expected identifier in directive");
-        if (UniqueStr != "unique")
-          return TokError("expected 'unique'");
-        Unique = true;
-      }
     }
   }
 
@@ -519,8 +509,8 @@ EndStmt:
       }
   }
 
-  const MCSection *ELFSection = getContext().getELFSection(
-      SectionName, Type, Flags, Size, GroupName, Unique);
+  const MCSection *ELFSection =
+      getContext().getELFSection(SectionName, Type, Flags, Size, GroupName);
   getStreamer().SwitchSection(ELFSection, Subsection);
 
   if (getContext().getGenDwarfForAssembly()) {