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- Add new isExternal() method to GlobalVariable to mirror Function.

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- doxygenize comments and add new comments


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4046 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-10-06 22:29:58 +00:00
parent 7d3f8671c1
commit ac8a58d500
1 changed files with 21 additions and 10 deletions
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31
include/llvm/GlobalVariable.h
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@ -42,10 +42,22 @@ public:
// Specialize setName to handle symbol table majik...
virtual void setName(const std::string &name, SymbolTable *ST = 0);
// The initializer for the global variable/constant is held by Operands[0] if
// an initializer is specified.
//
inline bool hasInitializer() const { return !Operands.empty(); }
/// isExternal - Is this global variable lacking an initializer? If so, the
/// global variable is defined in some other translation unit, and is thus
/// externally defined here.
///
bool isExternal() const { return Operands.empty(); }
/// hasInitializer - Unless a global variable isExternal(), it has an
/// initializer. The initializer for the global variable/constant is held by
/// Operands[0] if an initializer is specified.
///
inline bool hasInitializer() const { return !isExternal(); }
/// getInitializer - Return the initializer for this global variable. It is
/// illegal to call this method if the global is external, because we cannot
/// tell what the value is initialized to!
///
inline Constant *getInitializer() const {
assert(hasInitializer() && "GV doesn't have initializer!");
return (Constant*)Operands[0].get();
@ -63,17 +75,16 @@ public:
}
}
// getNext/Prev - Return the next or previous instruction in the list. The
// last node in the list is a terminator instruction.
// getNext/Prev - Return the next or previous global variable in the list.
GlobalVariable *getNext() { return Next; }
const GlobalVariable *getNext() const { return Next; }
GlobalVariable *getPrev() { return Prev; }
const GlobalVariable *getPrev() const { return Prev; }
// If the value is a global constant, its value is immutable throughout the
// runtime execution of the program. Assigning a value into the constant
// leads to undefined behavior.
//
/// If the value is a global constant, its value is immutable throughout the
/// runtime execution of the program. Assigning a value into the constant
/// leads to undefined behavior.
///
inline bool isConstant() const { return isConstantGlobal; }
virtual void print(std::ostream &OS) const;