Removing the endian attribute and updating associated test cases. This functionality was never completely implemented, and this is an improvement over silently eating the attribute.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@190303 91177308-0d34-0410-b5e6-96231b3b80d8

include/clang/Basic/Attr.td

@@ -631,11 +631,6 @@ def ReqdWorkGroupSize : InheritableAttr {
               UnsignedArgument<"ZDim">];
 }
 
-def Endian : InheritableAttr {
-  let Spellings = [GNU<"endian">];
-  let Args = [IdentifierArgument<"platform">];
-}
-
 def WorkGroupSizeHint :  InheritableAttr {
   let Spellings = [GNU<"work_group_size_hint">];
   let Args = [UnsignedArgument<"XDim">, 

lib/Sema/SemaDeclAttr.cpp

@@ -2902,24 +2902,6 @@ static void handleVecTypeHint(Sema &S, Decl *D, const AttributeList &Attr) {
                                                ParmType, Attr.getLoc()));
 }
 
-static void handleEndianAttr(Sema &S, Decl *D, const AttributeList &Attr) {
-  if (!Attr.isArgIdent(0)) {
-    S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_type)
-     << Attr.getName() << 1 << AANT_ArgumentIdentifier;
-    return;
-  }
-  
-  if (!checkAttributeNumArgs(S, Attr, 1))
-    return;
-
-  if (!dyn_cast<VarDecl>(D))
-    S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type)
-      << Attr.getName() << ExpectedVariable;
-  StringRef EndianType = Attr.getArgAsIdent(0)->Ident->getName();
-  if (EndianType != "host" && EndianType != "device")
-    S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_endian) << EndianType;
-}
-
 SectionAttr *Sema::mergeSectionAttr(Decl *D, SourceRange Range,
                                     StringRef Name,
                                     unsigned AttrSpellingListIndex) {
@@ -4917,10 +4899,6 @@ static void ProcessDeclAttribute(Sema &S, Scope *scope, Decl *D,
   case AttributeList::AT_VecTypeHint:
     handleVecTypeHint(S, D, Attr); break;
 
-  case AttributeList::AT_Endian:
-    handleEndianAttr(S, D, Attr);
-    break;
-
   case AttributeList::AT_InitPriority: 
       handleInitPriorityAttr(S, D, Attr); break;
       

test/Sema/attr-endian.c

@@ -1,11 +1,3 @@
 // RUN: %clang_cc1 %s -verify -fsyntax-only
 
-int p1 __attribute__((endian(host)));
-int p2 __attribute__((endian(device)));
-
-int p3 __attribute__((endian));	// expected-error {{'endian' attribute requires parameter 1 to be an identifier}}
-int p4 __attribute__((endian("host")));	// expected-error {{'endian' attribute requires parameter 1 to be an identifier}}
-int p5 __attribute__((endian(host, 15)));	// expected-error {{'endian' attribute takes one argument}}
-int p6 __attribute__((endian(strange)));	// expected-warning {{unknown endian 'strange'}}
-
-void func(void) __attribute__((endian(host))); // expected-warning {{'endian' attribute only applies to variables}}
+int p1 __attribute__((endian(host)));	// expected-warning {{unknown attribute 'endian' ignored}}

test/SemaOpenCL/endian-attr.cl

@@ -1,9 +1,3 @@
 // RUN: %clang_cc1 -verify %s
 
-constant long a __attribute__((endian(host))) = 100;
-
-constant long b __attribute__((endian(device))) = 100;
-
-constant long c __attribute__((endian(none))) = 100; // expected-warning {{unknown endian 'none'}}
-
-void func() __attribute__((endian(host))); // expected-warning {{'endian' attribute only applies to variables}}
+constant long a __attribute__((endian(host))) = 100;	// expected-warning {{unknown attribute 'endian' ignored}}