Add support for global initializers.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78515 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGCXX.cpp b/lib/CodeGen/CGCXX.cpp
index bed6785..bcae829 100644
--- a/lib/CodeGen/CGCXX.cpp
+++ b/lib/CodeGen/CGCXX.cpp
@@ -91,6 +91,41 @@
}
}
+void
+CodeGenModule::EmitCXXGlobalInitFunc() {
+ if (CXXGlobalInits.empty())
+ return;
+
+ const llvm::FunctionType *FTy = llvm::FunctionType::get(llvm::Type::VoidTy,
+ false);
+
+ // Create our global initialization function.
+ // FIXME: Should this be tweakable by targets?
+ llvm::Function *Fn =
+ llvm::Function::Create(FTy, llvm::GlobalValue::InternalLinkage,
+ "__cxx_global_initialization", &TheModule);
+
+ CodeGenFunction(*this).GenerateCXXGlobalInitFunc(Fn,
+ CXXGlobalInits.data(),
+ CXXGlobalInits.size());
+ AddGlobalCtor(Fn);
+}
+
+void CodeGenFunction::GenerateCXXGlobalInitFunc(llvm::Function *Fn,
+ const VarDecl **Decls,
+ unsigned NumDecls) {
+ StartFunction(0, getContext().VoidTy, Fn, FunctionArgList(),
+ SourceLocation());
+
+ for (unsigned i = 0; i != NumDecls; ++i) {
+ const VarDecl *D = Decls[i];
+
+ llvm::Constant *DeclPtr = CGM.GetAddrOfGlobalVar(D);
+ EmitCXXGlobalVarDeclInit(*D, DeclPtr);
+ }
+ FinishFunction();
+}
+
void
CodeGenFunction::EmitStaticCXXBlockVarDeclInit(const VarDecl &D,
llvm::GlobalVariable *GV) {