From b4b130f0b10184efd34f76c0287943b02da5688b Mon Sep 17 00:00:00 2001 From: Bill Wendling Date: Wed, 5 Nov 2008 23:42:27 +0000 Subject: [PATCH] Add comments to function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58781 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/VMCore/Module.cpp | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/VMCore/Module.cpp b/lib/VMCore/Module.cpp index d4432c6ed95..b7bb49184b0 100644 --- a/lib/VMCore/Module.cpp +++ b/lib/VMCore/Module.cpp @@ -224,6 +224,12 @@ GlobalVariable *Module::getGlobalVariable(const std::string &Name, return 0; } +/// getOrInsertGlobal - Look up the specified global in the module symbol table. +/// 1. If it does not exist, add a declaration of the global and return it. +/// 2. Else, the global exists but has the wrong type: return the function +/// with a constantexpr cast to the right type. +/// 3. Finally, if the existing global is the correct delclaration, return the +/// existing global. Constant *Module::getOrInsertGlobal(const std::string &Name, const Type *Ty) { ValueSymbolTable &SymTab = getValueSymbolTable();