fix the varargs version of StructType::get to not require an LLVMContext, making usage

much cleaner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133364 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/DerivedTypes.h

@@ -237,14 +237,13 @@ public:
 
   /// StructType::get - Create an empty structure type.
   ///
-  static StructType *get(LLVMContext &Context, bool isPacked=false);
+  static StructType *get(LLVMContext &Context, bool isPacked = false);
   
-  /// StructType::get - This static method is a convenience method for
+  /// StructType::get - This static method is a convenience method for creating
-  /// creating structure types by specifying the elements as arguments.
+  /// structure types by specifying the elements as arguments.  Note that this
-  /// Note that this method always returns a non-packed struct.  To get
+  /// method always returns a non-packed struct, and requires at least one
-  /// an empty struct, pass NULL, NULL.
+  /// element type.
-  static StructType *get(LLVMContext &Context, 
+  static StructType *get(const Type *elt1, ...) END_WITH_NULL;
-                         const Type *type, ...) END_WITH_NULL;
 
   /// isValidElementType - Return true if the specified type is valid as a
   /// element type.

lib/CodeGen/SjLjEHPrepare.cpp

@@ -91,8 +91,7 @@ bool SjLjEHPass::doInitialization(Module &M) {
           Type::getInt8PtrTy(M.getContext());
   const Type *Int32Ty = Type::getInt32Ty(M.getContext());
   FunctionContextTy =
-    StructType::get(M.getContext(),
+    StructType::get(VoidPtrTy,                        // __prev
-                    VoidPtrTy,                        // __prev
                     Int32Ty,                          // call_site
                     ArrayType::get(Int32Ty, 4),       // __data
                     VoidPtrTy,                        // __personality

lib/Transforms/Instrumentation/PathProfiling.cpp

@@ -376,7 +376,7 @@ namespace llvm {
   public:
     static const StructType *get(LLVMContext& C) {
       return( StructType::get(
-                C, TypeBuilder<types::i<32>, xcompile>::get(C), // type
+                TypeBuilder<types::i<32>, xcompile>::get(C), // type
                 TypeBuilder<types::i<32>, xcompile>::get(C), // array size
                 TypeBuilder<types::i<8>*, xcompile>::get(C), // array/hash ptr
                 NULL));

lib/VMCore/Constants.cpp

@@ -1537,8 +1537,8 @@ Constant *ConstantExpr::getSizeOf(const Type* Ty) {
 Constant *ConstantExpr::getAlignOf(const Type* Ty) {
   // alignof is implemented as: (i64) gep ({i1,Ty}*)null, 0, 1
   // Note that a non-inbounds gep is used, as null isn't within any object.
-  const Type *AligningTy = StructType::get(Ty->getContext(),
+  const Type *AligningTy = 
-                                   Type::getInt1Ty(Ty->getContext()), Ty, NULL);
+    StructType::get(Type::getInt1Ty(Ty->getContext()), Ty, NULL);
   Constant *NullPtr = Constant::getNullValue(AligningTy->getPointerTo());
   Constant *Zero = ConstantInt::get(Type::getInt64Ty(Ty->getContext()), 0);
   Constant *One = ConstantInt::get(Type::getInt32Ty(Ty->getContext()), 1);

lib/VMCore/Type.cpp

@@ -939,15 +939,17 @@ StructType *StructType::get(LLVMContext &Context,
   return ST;
 }
 
-StructType *StructType::get(LLVMContext &Context, const Type *type, ...) {
+StructType *StructType::get(const Type *type, ...) {
+  assert(type != 0 && "Cannot create a struct type with no elements with this");
+  LLVMContext &Ctx = type->getContext();
   va_list ap;
-  std::vector<const llvm::Type*> StructFields;
+  SmallVector<const llvm::Type*, 8> StructFields;
   va_start(ap, type);
   while (type) {
     StructFields.push_back(type);
     type = va_arg(ap, llvm::Type*);
   }
-  return llvm::StructType::get(Context, StructFields);
+  return llvm::StructType::get(Ctx, StructFields);
 }
 
 bool StructType::isValidElementType(const Type *ElemTy) {

unittests/Support/TypeBuilderTest.cpp

@@ -231,19 +231,19 @@ public:
 namespace {
 
 TEST(TypeBuilderTest, Extensions) {
-  EXPECT_EQ(PointerType::getUnqual(StructType::get(getGlobalContext(), 
+  EXPECT_EQ(PointerType::getUnqual(StructType::get(
                                      TypeBuilder<int, false>::get(getGlobalContext()),
                                      TypeBuilder<int*, false>::get(getGlobalContext()),
                                      TypeBuilder<void*[], false>::get(getGlobalContext()),
                                      NULL)),
             (TypeBuilder<MyType*, false>::get(getGlobalContext())));
-  EXPECT_EQ(PointerType::getUnqual(StructType::get(getGlobalContext(), 
+  EXPECT_EQ(PointerType::getUnqual(StructType::get(
                                      TypeBuilder<types::i<32>, false>::get(getGlobalContext()),
                                      TypeBuilder<types::i<32>*, false>::get(getGlobalContext()),
                                      TypeBuilder<types::i<8>*[], false>::get(getGlobalContext()),
                                      NULL)),
             (TypeBuilder<MyPortableType*, false>::get(getGlobalContext())));
-  EXPECT_EQ(PointerType::getUnqual(StructType::get(getGlobalContext(), 
+  EXPECT_EQ(PointerType::getUnqual(StructType::get(
                                      TypeBuilder<types::i<32>, false>::get(getGlobalContext()),
                                      TypeBuilder<types::i<32>*, false>::get(getGlobalContext()),
                                      TypeBuilder<types::i<8>*[], false>::get(getGlobalContext()),

utils/TableGen/IntrinsicEmitter.cpp

@@ -214,7 +214,7 @@ static void EmitTypeGenerate(raw_ostream &OS,
   if (ArgTypes.size() == 1)
     return EmitTypeGenerate(OS, ArgTypes.front(), ArgNo);
 
-  OS << "StructType::get(Context, ";
+  OS << "StructType::get(";
 
   for (std::vector<Record*>::const_iterator
          I = ArgTypes.begin(), E = ArgTypes.end(); I != E; ++I) {