Initial submission for the attribute group feature.

Attribute groups are of the form:

  #0 = attributes { noinline "no-sse" "cpu"="cortex-a8" alignstack=4 }

Target-dependent attributes are represented as strings. Attributes can have
optional values associated with them. E.g., the "cpu" attribute has the value
"cortex-a8".

Target-independent attributes are listed as enums inside the attribute classes.

Multiple attribute groups can be referenced by the same object. In that case,
the attributes are merged together.

llvm-svn: 174493

1 files changed, 5 insertions, 0 deletions

diff --git a/llvm/lib/AsmParser/LLParser.h b/llvm/lib/AsmParser/LLParser.h
index d8de77908cc..131331a5bc6 100644
--- a/llvm/lib/AsmParser/LLParser.h
+++ b/llvm/lib/AsmParser/LLParser.h
@@ -125,6 +125,9 @@ namespace llvm {
     std::map<ValID, std::vector<std::pair<ValID, GlobalValue*> > >
       ForwardRefBlockAddresses;
 
+    // Attribute builder reference information.
+    std::map<unsigned, AttrBuilder> ForwardRefAttrBuilder;
+
   public:
     LLParser(MemoryBuffer *F, SourceMgr &SM, SMDiagnostic &Err, Module *m) :
       Context(m->getContext()), Lex(F, SM, Err, m->getContext()),
@@ -236,6 +239,8 @@ namespace llvm {
     bool ParseMDString(MDString *&Result);
     bool ParseMDNodeID(MDNode *&Result);
     bool ParseMDNodeID(MDNode *&Result, unsigned &SlotNo);
+    bool ParseUnnamedAttrGrp();
+    bool ParseAttributeValuePairs(AttrBuilder &B);
 
     // Type Parsing.
     bool ParseType(Type *&Result, bool AllowVoid = false);