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Change the interface to Module::getOrInsertFunction to be easier to use,

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to resolve PR1088, and to help PR411.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32988 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2007-01-07 08:09:25 +00:00
parent 12969887a3
commit 70d130516a
2 changed files with 34 additions and 16 deletions
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14
include/llvm/Module.h
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@@ -166,15 +166,21 @@ public:
/// @{
public:
/// getOrInsertFunction - Look up the specified function in the module symbol
/// table. If it does not exist, add a prototype for the function and return
/// it.
Function *getOrInsertFunction(const std::string &Name, const FunctionType *T);
/// table. Four possibilities:
/// 1. If it does not exist, add a prototype for the function and return it.
/// 2. If it exists, and has internal linkage, the existing function is
/// renamed and a new one is inserted.
/// 3. Otherwise, if the existing function has the correct prototype, return
/// the existing function.
/// 4. Finally, the function exists but has the wrong prototype: return the
/// function with a constantexpr cast to the right prototype.
Constant *getOrInsertFunction(const std::string &Name, const FunctionType *T);
/// getOrInsertFunction - Look up the specified function in the module symbol
/// table. If it does not exist, add a prototype for the function and return
/// it. This version of the method takes a null terminated list of function
/// arguments, which makes it easier for clients to use.
Function *getOrInsertFunction(const std::string &Name, const Type *RetTy,...)
Constant *getOrInsertFunction(const std::string &Name, const Type *RetTy,...)
END_WITH_NULL;
/// getFunction - Look up the specified function in the module symbol table.