R600: Add ISA documents to the CompilerWriterInfo page
[oota-llvm.git] / lib / AsmParser / LLParser.cpp
index 22c21c62b92d47162e9186e8c73a6b1e4bc6d817..62a07f5016a66a742c3cad8f17c1a2ffdea45aa8 100644 (file)
@@ -65,6 +65,64 @@ bool LLParser::ValidateEndOfModule() {
     ForwardRefInstMetadata.clear();
   }
 
+  // Handle any function attribute group forward references.
+  for (std::map<Value*, std::vector<unsigned> >::iterator
+         I = ForwardRefAttrGroups.begin(), E = ForwardRefAttrGroups.end();
+         I != E; ++I) {
+    Value *V = I->first;
+    std::vector<unsigned> &Vec = I->second;
+    AttrBuilder B;
+
+    for (std::vector<unsigned>::iterator VI = Vec.begin(), VE = Vec.end();
+         VI != VE; ++VI)
+      B.merge(NumberedAttrBuilders[*VI]);
+
+    if (Function *Fn = dyn_cast<Function>(V)) {
+      AttributeSet AS = Fn->getAttributes();
+      AttrBuilder FnAttrs(AS.getFnAttributes(), AttributeSet::FunctionIndex);
+      AS = AS.removeAttributes(Context, AttributeSet::FunctionIndex,
+                               AS.getFnAttributes());
+
+      FnAttrs.merge(B);
+
+      // If the alignment was parsed as an attribute, move to the alignment
+      // field.
+      if (FnAttrs.hasAlignmentAttr()) {
+        Fn->setAlignment(FnAttrs.getAlignment());
+        FnAttrs.removeAttribute(Attribute::Alignment);
+      }
+
+      AS = AS.addAttributes(Context, AttributeSet::FunctionIndex,
+                            AttributeSet::get(Context,
+                                              AttributeSet::FunctionIndex,
+                                              FnAttrs));
+      Fn->setAttributes(AS);
+    } else if (CallInst *CI = dyn_cast<CallInst>(V)) {
+      AttributeSet AS = CI->getAttributes();
+      AttrBuilder FnAttrs(AS.getFnAttributes(), AttributeSet::FunctionIndex);
+      AS = AS.removeAttributes(Context, AttributeSet::FunctionIndex,
+                               AS.getFnAttributes());
+      FnAttrs.merge(B);
+      AS = AS.addAttributes(Context, AttributeSet::FunctionIndex,
+                            AttributeSet::get(Context,
+                                              AttributeSet::FunctionIndex,
+                                              FnAttrs));
+      CI->setAttributes(AS);
+    } else if (InvokeInst *II = dyn_cast<InvokeInst>(V)) {
+      AttributeSet AS = II->getAttributes();
+      AttrBuilder FnAttrs(AS.getFnAttributes(), AttributeSet::FunctionIndex);
+      AS = AS.removeAttributes(Context, AttributeSet::FunctionIndex,
+                               AS.getFnAttributes());
+      FnAttrs.merge(B);
+      AS = AS.addAttributes(Context, AttributeSet::FunctionIndex,
+                            AttributeSet::get(Context,
+                                              AttributeSet::FunctionIndex,
+                                              FnAttrs));
+      II->setAttributes(AS);
+    } else {
+      llvm_unreachable("invalid object with forward attribute group reference");
+    }
+  }
 
   // If there are entries in ForwardRefBlockAddresses at this point, they are
   // references after the function was defined.  Resolve those now.
@@ -175,7 +233,6 @@ bool LLParser::ParseTopLevelEntities() {
     case lltok::GlobalVar:  if (ParseNamedGlobal()) return true; break;
     case lltok::exclaim:    if (ParseStandaloneMetadata()) return true; break;
     case lltok::MetadataVar:if (ParseNamedMetadata()) return true; break;
-    case lltok::AttrGrpID:  if (ParseUnnamedAttrGrp()) return true; break;
 
     // The Global variable production with no name can have many different
     // optional leading prefixes, the production is:
@@ -221,6 +278,8 @@ bool LLParser::ParseTopLevelEntities() {
     case lltok::kw_global:        // GlobalType
       if (ParseGlobal("", SMLoc(), 0, false, 0)) return true;
       break;
+
+    case lltok::kw_attributes: if (ParseUnnamedAttrGrp()) return true; break;
     }
   }
 }
@@ -469,7 +528,7 @@ bool LLParser::ParseMDNodeID(MDNode *&Result) {
   if (Result) return false;
 
   // Otherwise, create MDNode forward reference.
-  MDNode *FwdNode = MDNode::getTemporary(Context, ArrayRef<Value*>());
+  MDNode *FwdNode = MDNode::getTemporary(Context, None);
   ForwardRefMDNodes[MID] = std::make_pair(FwdNode, Lex.getLoc());
 
   if (NumberedMetadata.size() <= MID)
@@ -742,38 +801,68 @@ bool LLParser::ParseGlobal(const std::string &Name, LocTy NameLoc,
 }
 
 /// ParseUnnamedAttrGrp
-///   ::= AttrGrpID '=' '{' AttrValPair+ '}'
+///   ::= 'attributes' AttrGrpID '=' '{' AttrValPair+ '}'
 bool LLParser::ParseUnnamedAttrGrp() {
-  assert(Lex.getKind() == lltok::AttrGrpID);
+  assert(Lex.getKind() == lltok::kw_attributes);
   LocTy AttrGrpLoc = Lex.getLoc();
+  Lex.Lex();
+
+  assert(Lex.getKind() == lltok::AttrGrpID);
   unsigned VarID = Lex.getUIntVal();
+  std::vector<unsigned> unused;
+  LocTy BuiltinLoc;
   Lex.Lex();
 
   if (ParseToken(lltok::equal, "expected '=' here") ||
-      ParseToken(lltok::kw_attributes, "expected 'attributes' keyword here") ||
       ParseToken(lltok::lbrace, "expected '{' here") ||
-      ParseAttributeValuePairs(ForwardRefAttrBuilder[VarID]) ||
+      ParseFnAttributeValuePairs(NumberedAttrBuilders[VarID], unused, true,
+                                 BuiltinLoc) ||
       ParseToken(lltok::rbrace, "expected end of attribute group"))
     return true;
 
-  if (!ForwardRefAttrBuilder[VarID].hasAttributes())
+  if (!NumberedAttrBuilders[VarID].hasAttributes())
     return Error(AttrGrpLoc, "attribute group has no attributes");
 
   return false;
 }
 
-/// ParseAttributeValuePairs
+/// ParseFnAttributeValuePairs
 ///   ::= <attr> | <attr> '=' <value>
-bool LLParser::ParseAttributeValuePairs(AttrBuilder &B) {
+bool LLParser::ParseFnAttributeValuePairs(AttrBuilder &B,
+                                          std::vector<unsigned> &FwdRefAttrGrps,
+                                          bool inAttrGrp, LocTy &BuiltinLoc) {
+  bool HaveError = false;
+
+  B.clear();
+
   while (true) {
     lltok::Kind Token = Lex.getKind();
+    if (Token == lltok::kw_builtin)
+      BuiltinLoc = Lex.getLoc();
     switch (Token) {
     default:
+      if (!inAttrGrp) return HaveError;
       return Error(Lex.getLoc(), "unterminated attribute group");
     case lltok::rbrace:
       // Finished.
       return false;
 
+    case lltok::AttrGrpID: {
+      // Allow a function to reference an attribute group:
+      //
+      //   define void @foo() #1 { ... }
+      if (inAttrGrp)
+        HaveError |=
+          Error(Lex.getLoc(),
+              "cannot have an attribute group reference in an attribute group");
+
+      unsigned AttrGrpNum = Lex.getUIntVal();
+      if (inAttrGrp) break;
+
+      // Save the reference to the attribute group. We'll fill it in later.
+      FwdRefAttrGrps.push_back(AttrGrpNum);
+      break;
+    }
     // Target-dependent attributes:
     case lltok::StringConstant: {
       std::string Attr = Lex.getStrVal();
@@ -784,54 +873,85 @@ bool LLParser::ParseAttributeValuePairs(AttrBuilder &B) {
         return true;
 
       B.addAttribute(Attr, Val);
-      break;
+      continue;
     }
 
     // Target-independent attributes:
     case lltok::kw_align: {
+      // As a hack, we allow function alignment to be initially parsed as an
+      // attribute on a function declaration/definition or added to an attribute
+      // group and later moved to the alignment field.
       unsigned Alignment;
-      if (ParseToken(lltok::equal, "expected '=' here") ||
-          ParseUInt32(Alignment))
-        return true;
+      if (inAttrGrp) {
+        Lex.Lex();
+        if (ParseToken(lltok::equal, "expected '=' here") ||
+            ParseUInt32(Alignment))
+          return true;
+      } else {
+        if (ParseOptionalAlignment(Alignment))
+          return true;
+      }
       B.addAlignmentAttr(Alignment);
-      break;
+      continue;
     }
     case lltok::kw_alignstack: {
       unsigned Alignment;
-      if (ParseToken(lltok::equal, "expected '=' here") ||
-          ParseUInt32(Alignment))
-        return true;
+      if (inAttrGrp) {
+        Lex.Lex();
+        if (ParseToken(lltok::equal, "expected '=' here") ||
+            ParseUInt32(Alignment))
+          return true;
+      } else {
+        if (ParseOptionalStackAlignment(Alignment))
+          return true;
+      }
       B.addStackAlignmentAttr(Alignment);
-      break;
+      continue;
     }
-    case lltok::kw_address_safety:  B.addAttribute(Attribute::AddressSafety); break;
-    case lltok::kw_alwaysinline:    B.addAttribute(Attribute::AlwaysInline); break;
-    case lltok::kw_byval:           B.addAttribute(Attribute::ByVal); break;
-    case lltok::kw_inlinehint:      B.addAttribute(Attribute::InlineHint); break;
-    case lltok::kw_inreg:           B.addAttribute(Attribute::InReg); break;
-    case lltok::kw_minsize:         B.addAttribute(Attribute::MinSize); break;
-    case lltok::kw_naked:           B.addAttribute(Attribute::Naked); break;
-    case lltok::kw_nest:            B.addAttribute(Attribute::Nest); break;
-    case lltok::kw_noalias:         B.addAttribute(Attribute::NoAlias); break;
-    case lltok::kw_nocapture:       B.addAttribute(Attribute::NoCapture); break;
-    case lltok::kw_noduplicate:     B.addAttribute(Attribute::NoDuplicate); break;
-    case lltok::kw_noimplicitfloat: B.addAttribute(Attribute::NoImplicitFloat); break;
-    case lltok::kw_noinline:        B.addAttribute(Attribute::NoInline); break;
-    case lltok::kw_nonlazybind:     B.addAttribute(Attribute::NonLazyBind); break;
-    case lltok::kw_noredzone:       B.addAttribute(Attribute::NoRedZone); break;
-    case lltok::kw_noreturn:        B.addAttribute(Attribute::NoReturn); break;
-    case lltok::kw_nounwind:        B.addAttribute(Attribute::NoUnwind); break;
-    case lltok::kw_optsize:         B.addAttribute(Attribute::OptimizeForSize); break;
-    case lltok::kw_readnone:        B.addAttribute(Attribute::ReadNone); break;
-    case lltok::kw_readonly:        B.addAttribute(Attribute::ReadOnly); break;
-    case lltok::kw_returns_twice:   B.addAttribute(Attribute::ReturnsTwice); break;
-    case lltok::kw_signext:         B.addAttribute(Attribute::SExt); break;
-    case lltok::kw_sret:            B.addAttribute(Attribute::StructRet); break;
-    case lltok::kw_ssp:             B.addAttribute(Attribute::StackProtect); break;
-    case lltok::kw_sspreq:          B.addAttribute(Attribute::StackProtectReq); break;
-    case lltok::kw_sspstrong:       B.addAttribute(Attribute::StackProtectStrong); break;
-    case lltok::kw_uwtable:         B.addAttribute(Attribute::UWTable); break;
-    case lltok::kw_zeroext:         B.addAttribute(Attribute::ZExt); break;
+    case lltok::kw_alwaysinline:      B.addAttribute(Attribute::AlwaysInline); break;
+    case lltok::kw_builtin:           B.addAttribute(Attribute::Builtin); break;
+    case lltok::kw_cold:              B.addAttribute(Attribute::Cold); break;
+    case lltok::kw_inlinehint:        B.addAttribute(Attribute::InlineHint); break;
+    case lltok::kw_minsize:           B.addAttribute(Attribute::MinSize); break;
+    case lltok::kw_naked:             B.addAttribute(Attribute::Naked); break;
+    case lltok::kw_nobuiltin:         B.addAttribute(Attribute::NoBuiltin); break;
+    case lltok::kw_noduplicate:       B.addAttribute(Attribute::NoDuplicate); break;
+    case lltok::kw_noimplicitfloat:   B.addAttribute(Attribute::NoImplicitFloat); break;
+    case lltok::kw_noinline:          B.addAttribute(Attribute::NoInline); break;
+    case lltok::kw_nonlazybind:       B.addAttribute(Attribute::NonLazyBind); break;
+    case lltok::kw_noredzone:         B.addAttribute(Attribute::NoRedZone); break;
+    case lltok::kw_noreturn:          B.addAttribute(Attribute::NoReturn); break;
+    case lltok::kw_nounwind:          B.addAttribute(Attribute::NoUnwind); break;
+    case lltok::kw_optsize:           B.addAttribute(Attribute::OptimizeForSize); break;
+    case lltok::kw_readnone:          B.addAttribute(Attribute::ReadNone); break;
+    case lltok::kw_readonly:          B.addAttribute(Attribute::ReadOnly); break;
+    case lltok::kw_returns_twice:     B.addAttribute(Attribute::ReturnsTwice); break;
+    case lltok::kw_ssp:               B.addAttribute(Attribute::StackProtect); break;
+    case lltok::kw_sspreq:            B.addAttribute(Attribute::StackProtectReq); break;
+    case lltok::kw_sspstrong:         B.addAttribute(Attribute::StackProtectStrong); break;
+    case lltok::kw_sanitize_address:  B.addAttribute(Attribute::SanitizeAddress); break;
+    case lltok::kw_sanitize_thread:   B.addAttribute(Attribute::SanitizeThread); break;
+    case lltok::kw_sanitize_memory:   B.addAttribute(Attribute::SanitizeMemory); break;
+    case lltok::kw_uwtable:           B.addAttribute(Attribute::UWTable); break;
+
+    // Error handling.
+    case lltok::kw_inreg:
+    case lltok::kw_signext:
+    case lltok::kw_zeroext:
+      HaveError |=
+        Error(Lex.getLoc(),
+              "invalid use of attribute on a function");
+      break;
+    case lltok::kw_byval:
+    case lltok::kw_nest:
+    case lltok::kw_noalias:
+    case lltok::kw_nocapture:
+    case lltok::kw_returned:
+    case lltok::kw_sret:
+      HaveError |=
+        Error(Lex.getLoc(),
+              "invalid use of parameter-only attribute on a function");
+      break;
     }
 
     Lex.Lex();
@@ -1016,72 +1136,6 @@ bool LLParser::ParseOptionalAddrSpace(unsigned &AddrSpace) {
          ParseToken(lltok::rparen, "expected ')' in address space");
 }
 
-/// ParseOptionalFuncAttrs - Parse a potentially empty list of function attributes.
-bool LLParser::ParseOptionalFuncAttrs(AttrBuilder &B) {
-  bool HaveError = false;
-
-  B.clear();
-
-  while (1) {
-    lltok::Kind Token = Lex.getKind();
-    switch (Token) {
-    default:  // End of attributes.
-      return HaveError;
-    case lltok::kw_alignstack: {
-      unsigned Alignment;
-      if (ParseOptionalStackAlignment(Alignment))
-        return true;
-      B.addStackAlignmentAttr(Alignment);
-      continue;
-    }
-    case lltok::kw_align: {
-      // As a hack, we allow "align 2" on functions as a synonym for "alignstack
-      // 2".
-      unsigned Alignment;
-      if (ParseOptionalAlignment(Alignment))
-        return true;
-      B.addAlignmentAttr(Alignment);
-      continue;
-    }
-    case lltok::kw_address_safety:  B.addAttribute(Attribute::AddressSafety); break;
-    case lltok::kw_alwaysinline:    B.addAttribute(Attribute::AlwaysInline); break;
-    case lltok::kw_inlinehint:      B.addAttribute(Attribute::InlineHint); break;
-    case lltok::kw_minsize:         B.addAttribute(Attribute::MinSize); break;
-    case lltok::kw_naked:           B.addAttribute(Attribute::Naked); break;
-    case lltok::kw_noinline:        B.addAttribute(Attribute::NoInline); break;
-    case lltok::kw_nonlazybind:     B.addAttribute(Attribute::NonLazyBind); break;
-    case lltok::kw_noredzone:       B.addAttribute(Attribute::NoRedZone); break;
-    case lltok::kw_noimplicitfloat: B.addAttribute(Attribute::NoImplicitFloat); break;
-    case lltok::kw_noreturn:        B.addAttribute(Attribute::NoReturn); break;
-    case lltok::kw_nounwind:        B.addAttribute(Attribute::NoUnwind); break;
-    case lltok::kw_optsize:         B.addAttribute(Attribute::OptimizeForSize); break;
-    case lltok::kw_readnone:        B.addAttribute(Attribute::ReadNone); break;
-    case lltok::kw_readonly:        B.addAttribute(Attribute::ReadOnly); break;
-    case lltok::kw_returns_twice:   B.addAttribute(Attribute::ReturnsTwice); break;
-    case lltok::kw_ssp:             B.addAttribute(Attribute::StackProtect); break;
-    case lltok::kw_sspreq:          B.addAttribute(Attribute::StackProtectReq); break;
-    case lltok::kw_sspstrong:       B.addAttribute(Attribute::StackProtectStrong); break;
-    case lltok::kw_uwtable:         B.addAttribute(Attribute::UWTable); break;
-    case lltok::kw_noduplicate:     B.addAttribute(Attribute::NoDuplicate); break;
-
-    // Error handling.
-    case lltok::kw_zeroext:
-    case lltok::kw_signext:
-    case lltok::kw_inreg:
-      HaveError |= Error(Lex.getLoc(), "invalid use of attribute on a function");
-      break;
-    case lltok::kw_sret:      case lltok::kw_noalias:
-    case lltok::kw_nocapture: case lltok::kw_byval:
-    case lltok::kw_nest:
-      HaveError |=
-        Error(Lex.getLoc(), "invalid use of parameter-only attribute on a function");
-      break;
-    }
-
-    Lex.Lex();
-  }
-}
-
 /// ParseOptionalParamAttrs - Parse a potentially empty list of parameter attributes.
 bool LLParser::ParseOptionalParamAttrs(AttrBuilder &B) {
   bool HaveError = false;
@@ -1105,20 +1159,36 @@ bool LLParser::ParseOptionalParamAttrs(AttrBuilder &B) {
     case lltok::kw_nest:            B.addAttribute(Attribute::Nest); break;
     case lltok::kw_noalias:         B.addAttribute(Attribute::NoAlias); break;
     case lltok::kw_nocapture:       B.addAttribute(Attribute::NoCapture); break;
+    case lltok::kw_readnone:        B.addAttribute(Attribute::ReadNone); break;
+    case lltok::kw_readonly:        B.addAttribute(Attribute::ReadOnly); break;
+    case lltok::kw_returned:        B.addAttribute(Attribute::Returned); break;
     case lltok::kw_signext:         B.addAttribute(Attribute::SExt); break;
     case lltok::kw_sret:            B.addAttribute(Attribute::StructRet); break;
     case lltok::kw_zeroext:         B.addAttribute(Attribute::ZExt); break;
 
-    case lltok::kw_noreturn:       case lltok::kw_nounwind:
-    case lltok::kw_uwtable:        case lltok::kw_returns_twice:
-    case lltok::kw_noinline:       case lltok::kw_readnone:
-    case lltok::kw_readonly:       case lltok::kw_inlinehint:
-    case lltok::kw_alwaysinline:   case lltok::kw_optsize:
-    case lltok::kw_ssp:            case lltok::kw_sspreq:
-    case lltok::kw_noredzone:      case lltok::kw_noimplicitfloat:
-    case lltok::kw_naked:          case lltok::kw_nonlazybind:
-    case lltok::kw_address_safety: case lltok::kw_minsize:
     case lltok::kw_alignstack:
+    case lltok::kw_alwaysinline:
+    case lltok::kw_builtin:
+    case lltok::kw_inlinehint:
+    case lltok::kw_minsize:
+    case lltok::kw_naked:
+    case lltok::kw_nobuiltin:
+    case lltok::kw_noduplicate:
+    case lltok::kw_noimplicitfloat:
+    case lltok::kw_noinline:
+    case lltok::kw_nonlazybind:
+    case lltok::kw_noredzone:
+    case lltok::kw_noreturn:
+    case lltok::kw_nounwind:
+    case lltok::kw_optsize:
+    case lltok::kw_returns_twice:
+    case lltok::kw_sanitize_address:
+    case lltok::kw_sanitize_memory:
+    case lltok::kw_sanitize_thread:
+    case lltok::kw_ssp:
+    case lltok::kw_sspreq:
+    case lltok::kw_sspstrong:
+    case lltok::kw_uwtable:
       HaveError |= Error(Lex.getLoc(), "invalid use of function-only attribute");
       break;
     }
@@ -1144,24 +1214,45 @@ bool LLParser::ParseOptionalReturnAttrs(AttrBuilder &B) {
     case lltok::kw_zeroext:         B.addAttribute(Attribute::ZExt); break;
 
     // Error handling.
-    case lltok::kw_sret:  case lltok::kw_nocapture:
-    case lltok::kw_byval: case lltok::kw_nest:
+    case lltok::kw_align:
+    case lltok::kw_byval:
+    case lltok::kw_nest:
+    case lltok::kw_nocapture:
+    case lltok::kw_returned:
+    case lltok::kw_sret:
       HaveError |= Error(Lex.getLoc(), "invalid use of parameter-only attribute");
       break;
 
-    case lltok::kw_noreturn:       case lltok::kw_nounwind:
-    case lltok::kw_uwtable:        case lltok::kw_returns_twice:
-    case lltok::kw_noinline:       case lltok::kw_readnone:
-    case lltok::kw_readonly:       case lltok::kw_inlinehint:
-    case lltok::kw_alwaysinline:   case lltok::kw_optsize:
-    case lltok::kw_ssp:            case lltok::kw_sspreq:
-    case lltok::kw_sspstrong:      case lltok::kw_noimplicitfloat:
-    case lltok::kw_noredzone:      case lltok::kw_naked:
-    case lltok::kw_nonlazybind:    case lltok::kw_address_safety:
-    case lltok::kw_minsize:        case lltok::kw_alignstack:
-    case lltok::kw_align:          case lltok::kw_noduplicate:
+    case lltok::kw_alignstack:
+    case lltok::kw_alwaysinline:
+    case lltok::kw_builtin:
+    case lltok::kw_cold:
+    case lltok::kw_inlinehint:
+    case lltok::kw_minsize:
+    case lltok::kw_naked:
+    case lltok::kw_nobuiltin:
+    case lltok::kw_noduplicate:
+    case lltok::kw_noimplicitfloat:
+    case lltok::kw_noinline:
+    case lltok::kw_nonlazybind:
+    case lltok::kw_noredzone:
+    case lltok::kw_noreturn:
+    case lltok::kw_nounwind:
+    case lltok::kw_optsize:
+    case lltok::kw_returns_twice:
+    case lltok::kw_sanitize_address:
+    case lltok::kw_sanitize_memory:
+    case lltok::kw_sanitize_thread:
+    case lltok::kw_ssp:
+    case lltok::kw_sspreq:
+    case lltok::kw_sspstrong:
+    case lltok::kw_uwtable:
       HaveError |= Error(Lex.getLoc(), "invalid use of function-only attribute");
       break;
+
+    case lltok::kw_readnone:
+    case lltok::kw_readonly:
+      HaveError |= Error(Lex.getLoc(), "invalid use of attribute on return type");
     }
 
     Lex.Lex();
@@ -1253,6 +1344,8 @@ bool LLParser::ParseOptionalVisibility(unsigned &Res) {
 ///   ::= 'ptx_device'
 ///   ::= 'spir_func'
 ///   ::= 'spir_kernel'
+///   ::= 'x86_64_sysvcc'
+///   ::= 'x86_64_win64cc'
 ///   ::= 'cc' UINT
 ///
 bool LLParser::ParseOptionalCallingConv(CallingConv::ID &CC) {
@@ -1273,6 +1366,8 @@ bool LLParser::ParseOptionalCallingConv(CallingConv::ID &CC) {
   case lltok::kw_spir_kernel:    CC = CallingConv::SPIR_KERNEL; break;
   case lltok::kw_spir_func:      CC = CallingConv::SPIR_FUNC; break;
   case lltok::kw_intel_ocl_bicc: CC = CallingConv::Intel_OCL_BI; break;
+  case lltok::kw_x86_64_sysvcc:  CC = CallingConv::X86_64_SysV; break;
+  case lltok::kw_x86_64_win64cc: CC = CallingConv::X86_64_Win64; break;
   case lltok::kw_cc: {
       unsigned ArbitraryCC;
       Lex.Lex();
@@ -2265,7 +2360,8 @@ bool LLParser::ParseValID(ValID &ID, PerFunctionState *PFS) {
     return false;
 
   case lltok::kw_asm: {
-    // ValID ::= 'asm' SideEffect? AlignStack? STRINGCONSTANT ',' STRINGCONSTANT
+    // ValID ::= 'asm' SideEffect? AlignStack? IntelDialect? STRINGCONSTANT ','
+    //             STRINGCONSTANT
     bool HasSideEffect, AlignStack, AsmDialect;
     Lex.Lex();
     if (ParseOptionalToken(lltok::kw_sideeffect, HasSideEffect) ||
@@ -2895,6 +2991,8 @@ bool LLParser::ParseFunctionHeader(Function *&Fn, bool isDefine) {
   SmallVector<ArgInfo, 8> ArgList;
   bool isVarArg;
   AttrBuilder FuncAttrs;
+  std::vector<unsigned> FwdRefAttrGrps;
+  LocTy BuiltinLoc;
   std::string Section;
   unsigned Alignment;
   std::string GC;
@@ -2904,7 +3002,8 @@ bool LLParser::ParseFunctionHeader(Function *&Fn, bool isDefine) {
   if (ParseArgumentList(ArgList, isVarArg) ||
       ParseOptionalToken(lltok::kw_unnamed_addr, UnnamedAddr,
                          &UnnamedAddrLoc) ||
-      ParseOptionalFuncAttrs(FuncAttrs) ||
+      ParseFnAttributeValuePairs(FuncAttrs, FwdRefAttrGrps, false,
+                                 BuiltinLoc) ||
       (EatIfPresent(lltok::kw_section) &&
        ParseStringConstant(Section)) ||
       ParseOptionalAlignment(Alignment) ||
@@ -2912,6 +3011,9 @@ bool LLParser::ParseFunctionHeader(Function *&Fn, bool isDefine) {
        ParseStringConstant(GC)))
     return true;
 
+  if (FuncAttrs.contains(Attribute::Builtin))
+    return Error(BuiltinLoc, "'builtin' attribute not valid on function");
+
   // If the alignment was parsed as an attribute, move to the alignment field.
   if (FuncAttrs.hasAlignmentAttr()) {
     Alignment = FuncAttrs.getAlignment();
@@ -3004,6 +3106,7 @@ bool LLParser::ParseFunctionHeader(Function *&Fn, bool isDefine) {
   Fn->setAlignment(Alignment);
   Fn->setSection(Section);
   if (!GC.empty()) Fn->setGC(GC.c_str());
+  ForwardRefAttrGroups[Fn] = FwdRefAttrGrps;
 
   // Add all of the arguments we parsed to the function.
   Function::arg_iterator ArgIt = Fn->arg_begin();
@@ -3423,6 +3526,8 @@ bool LLParser::ParseIndirectBr(Instruction *&Inst, PerFunctionState &PFS) {
 bool LLParser::ParseInvoke(Instruction *&Inst, PerFunctionState &PFS) {
   LocTy CallLoc = Lex.getLoc();
   AttrBuilder RetAttrs, FnAttrs;
+  std::vector<unsigned> FwdRefAttrGrps;
+  LocTy NoBuiltinLoc;
   CallingConv::ID CC;
   Type *RetType = 0;
   LocTy RetTypeLoc;
@@ -3435,7 +3540,8 @@ bool LLParser::ParseInvoke(Instruction *&Inst, PerFunctionState &PFS) {
       ParseType(RetType, RetTypeLoc, true /*void allowed*/) ||
       ParseValID(CalleeID) ||
       ParseParameterList(ArgList, PFS) ||
-      ParseOptionalFuncAttrs(FnAttrs) ||
+      ParseFnAttributeValuePairs(FnAttrs, FwdRefAttrGrps, false,
+                                 NoBuiltinLoc) ||
       ParseToken(lltok::kw_to, "expected 'to' in invoke") ||
       ParseTypeAndBasicBlock(NormalBB, PFS) ||
       ParseToken(lltok::kw_unwind, "expected 'unwind' in invoke") ||
@@ -3510,6 +3616,7 @@ bool LLParser::ParseInvoke(Instruction *&Inst, PerFunctionState &PFS) {
   InvokeInst *II = InvokeInst::Create(Callee, NormalBB, UnwindBB, Args);
   II->setCallingConv(CC);
   II->setAttributes(PAL);
+  ForwardRefAttrGroups[II] = FwdRefAttrGrps;
   Inst = II;
   return false;
 }
@@ -3828,6 +3935,8 @@ bool LLParser::ParseLandingPad(Instruction *&Inst, PerFunctionState &PFS) {
 bool LLParser::ParseCall(Instruction *&Inst, PerFunctionState &PFS,
                          bool isTail) {
   AttrBuilder RetAttrs, FnAttrs;
+  std::vector<unsigned> FwdRefAttrGrps;
+  LocTy BuiltinLoc;
   CallingConv::ID CC;
   Type *RetType = 0;
   LocTy RetTypeLoc;
@@ -3841,7 +3950,8 @@ bool LLParser::ParseCall(Instruction *&Inst, PerFunctionState &PFS,
       ParseType(RetType, RetTypeLoc, true /*void allowed*/) ||
       ParseValID(CalleeID) ||
       ParseParameterList(ArgList, PFS) ||
-      ParseOptionalFuncAttrs(FnAttrs))
+      ParseFnAttributeValuePairs(FnAttrs, FwdRefAttrGrps, false,
+                                 BuiltinLoc))
     return true;
 
   // If RetType is a non-function pointer type, then this is the short syntax
@@ -3913,6 +4023,7 @@ bool LLParser::ParseCall(Instruction *&Inst, PerFunctionState &PFS,
   CI->setTailCall(isTail);
   CI->setCallingConv(CC);
   CI->setAttributes(PAL);
+  ForwardRefAttrGroups[CI] = FwdRefAttrGrps;
   Inst = CI;
   return false;
 }
@@ -4163,7 +4274,9 @@ int LLParser::ParseGetElementPtr(Instruction *&Inst, PerFunctionState &PFS) {
 
   if (ParseTypeAndValue(Ptr, Loc, PFS)) return true;
 
-  if (!Ptr->getType()->getScalarType()->isPointerTy())
+  Type *BaseType = Ptr->getType();
+  PointerType *BasePointerType = dyn_cast<PointerType>(BaseType->getScalarType());
+  if (!BasePointerType)
     return Error(Loc, "base of getelementptr must be a pointer");
 
   SmallVector<Value*, 16> Indices;
@@ -4188,7 +4301,10 @@ int LLParser::ParseGetElementPtr(Instruction *&Inst, PerFunctionState &PFS) {
     Indices.push_back(Val);
   }
 
-  if (!GetElementPtrInst::getIndexedType(Ptr->getType(), Indices))
+  if (!Indices.empty() && !BasePointerType->getElementType()->isSized())
+    return Error(Loc, "base element of getelementptr must be sized");
+
+  if (!GetElementPtrInst::getIndexedType(BaseType, Indices))
     return Error(Loc, "invalid getelementptr indices");
   Inst = GetElementPtrInst::Create(Ptr, Indices);
   if (InBounds)