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Make it possible to get an empty struct using

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the new StructType::get method.  The second NULL
is to pacify the gcc warning mechanism.  This
patch compiles but is otherwise untested.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48645 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands 2008-03-21 15:53:17 +00:00
parent 276dcbdc8d
commit 495304e351
2 changed files with 6 additions and 4 deletions
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5
include/llvm/DerivedTypes.h
View File

@ -221,8 +221,9 @@ public:
bool isPacked=false); bool isPacked=false);
/// StructType::get - This static method is a convenience method for /// StructType::get - This static method is a convenience method for
/// creating structure types by specifying the elements as arguments. Note /// creating structure types by specifying the elements as arguments.
/// that this method always returns a non-packed struct. /// Note that this method always returns a non-packed struct. To get
/// an empty struct, pass NULL, NULL.
static StructType *get(const Type *type, ...) END_WITH_NULL; static StructType *get(const Type *type, ...) END_WITH_NULL;
// Iterator access to the elements // Iterator access to the elements

5
lib/VMCore/Type.cpp
View File

@ -1252,9 +1252,10 @@ StructType *StructType::get(const Type *type, ...) {
va_list ap; va_list ap;
std::vector<const llvm::Type*> StructFields; std::vector<const llvm::Type*> StructFields;
va_start(ap, type); va_start(ap, type);
do { while (type) {
StructFields.push_back(type); StructFields.push_back(type);
} while ((type = va_arg(ap, llvm::Type*))); type = va_arg(ap, llvm::Type*);
}
return llvm::StructType::get(StructFields); return llvm::StructType::get(StructFields);
} }