diff options
author | Eli Friedman <eli.friedman@gmail.com> | 2009-03-05 04:18:07 +0000 |
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committer | Eli Friedman <eli.friedman@gmail.com> | 2009-03-05 04:18:07 +0000 |
commit | 2136b2e9345c23c26426110873dd97ef5d761ef2 (patch) | |
tree | fdbc375a7ea8b8a5ce012618d24d220eb633ea2e /lib/CodeGen | |
parent | ac78d6b8491bc0378c6237351814e81b1f46f0e8 (diff) |
Make IRGen compatible with declaring a function with incomplete
return/argument types. (The generated IR isn't ideal, but we can't
really do better in general.)
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66132 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
-rw-r--r-- | lib/CodeGen/CodeGenModule.cpp | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp index 422415c2e2..a187f8a51b 100644 --- a/lib/CodeGen/CodeGenModule.cpp +++ b/lib/CodeGen/CodeGenModule.cpp @@ -779,13 +779,24 @@ void CodeGenModule::EmitGlobalVarDefinition(const VarDecl *D) { llvm::GlobalValue * CodeGenModule::EmitForwardFunctionDefinition(const FunctionDecl *D, const llvm::Type *Ty) { - if (!Ty) + bool DoSetAttributes = true; + if (!Ty) { Ty = getTypes().ConvertType(D->getType()); + if (!isa<llvm::FunctionType>(Ty)) { + // This function doesn't have a complete type (for example, the return + // type is an incomplete struct). Use a fake type instead, and make + // sure not to try to set attributes. + Ty = llvm::FunctionType::get(llvm::Type::VoidTy, + std::vector<const llvm::Type*>(), false); + DoSetAttributes = false; + } + } llvm::Function *F = llvm::Function::Create(cast<llvm::FunctionType>(Ty), llvm::Function::ExternalLinkage, getMangledName(D), &getModule()); - SetFunctionAttributes(D, F); + if (DoSetAttributes) + SetFunctionAttributes(D, F); return F; } |