[cfe-commits] r44505 - /cfe/trunk/CodeGen/CodeGenModule.cpp

[Chris Lattner]

Author: lattner
Date: Sat Dec  1 23:56:05 2007
New Revision: 44505

URL: http://llvm.org/viewvc/llvm-project?rev=44505&view=rev
Log:
merge functions with multiple function decls if they have the same name.

Modified:
    cfe/trunk/CodeGen/CodeGenModule.cpp

Modified: cfe/trunk/CodeGen/CodeGenModule.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/CodeGen/CodeGenModule.cpp?rev=44505&r1=44504&r2=44505&view=diff

==============================================================================
--- cfe/trunk/CodeGen/CodeGenModule.cpp (original)
+++ cfe/trunk/CodeGen/CodeGenModule.cpp Sat Dec  1 23:56:05 2007
@@ -40,6 +40,13 @@
   const llvm::Type *Ty = getTypes().ConvertType(ASTTy);
   if (isa<FunctionDecl>(D)) {
     const llvm::FunctionType *FTy = cast<llvm::FunctionType>(Ty);
+    
+    // Check to see if the function already exists.
+    if (llvm::Function *F = getModule().getFunction(D->getName())) {
+      // If so, make sure it is the correct type.
+      return llvm::ConstantExpr::getBitCast(F, llvm::PointerType::get(FTy));
+    }
+    
     // FIXME: param attributes for sext/zext etc.
     return Entry = new llvm::Function(FTy, llvm::Function::ExternalLinkage,
                                       D->getName(), &getModule());