diff options
Diffstat (limited to 'CodeGen/CodeGenModule.cpp')
| -rw-r--r-- | CodeGen/CodeGenModule.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/CodeGen/CodeGenModule.cpp b/CodeGen/CodeGenModule.cpp index a6a887f90f..ec3d0affae 100644 --- a/CodeGen/CodeGenModule.cpp +++ b/CodeGen/CodeGenModule.cpp @@ -127,7 +127,11 @@ llvm::Function *CodeGenModule::getBuiltinLibFunction(unsigned BuiltinID) { // and for the existing one to be turned into a constantexpr cast of the // builtin. In the case where the existing one is a static function, it // should just be renamed. - assert(getModule().getFunction(Name) == 0 && "FIXME: Name collision"); + if (llvm::Function *Existing = getModule().getFunction(Name)) { + if (Existing->getFunctionType() == Ty && Existing->hasExternalLinkage()) + return FunctionSlot = Existing; + assert(Existing == 0 && "FIXME: Name collision"); + } // FIXME: param attributes for sext/zext etc. return FunctionSlot = new llvm::Function(Ty, llvm::Function::ExternalLinkage, |