Add some basic support for generating C++ member functions.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68425 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenFunction.cpp b/lib/CodeGen/CodeGenFunction.cpp
index dc00a76..5b63e65 100644
--- a/lib/CodeGen/CodeGenFunction.cpp
+++ b/lib/CodeGen/CodeGenFunction.cpp
@@ -18,6 +18,7 @@
#include "clang/AST/APValue.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/Decl.h"
+#include "clang/AST/DeclCXX.h"
#include "llvm/Support/CFG.h"
#include "llvm/Target/TargetData.h"
using namespace clang;
@@ -26,7 +27,8 @@
CodeGenFunction::CodeGenFunction(CodeGenModule &cgm)
: BlockFunction(cgm, *this, Builder), CGM(cgm),
Target(CGM.getContext().Target),
- DebugInfo(0), SwitchInsn(0), CaseRangeBlock(0), InvokeDest(0) {
+ DebugInfo(0), SwitchInsn(0), CaseRangeBlock(0), InvokeDest(0),
+ CXXThisDecl(0) {
LLVMIntTy = ConvertType(getContext().IntTy);
LLVMPointerWidth = Target.getPointerWidth(0);
}
@@ -201,6 +203,19 @@
DebugInfo = CGM.getDebugInfo();
FunctionArgList Args;
+
+ if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(FD)) {
+ if (MD->isInstance()) {
+ // Create the implicit 'this' decl.
+ // FIXME: I'm not entirely sure I like using a fake decl just for code
+ // generation. Maybe we can come up with a better way?
+ CXXThisDecl = ImplicitParamDecl::Create(getContext(), 0, SourceLocation(),
+ &getContext().Idents.get("this"),
+ MD->getThisType(getContext()));
+ Args.push_back(std::make_pair(CXXThisDecl, CXXThisDecl->getType()));
+ }
+ }
+
if (FD->getNumParams()) {
const FunctionProtoType* FProto = FD->getType()->getAsFunctionProtoType();
assert(FProto && "Function def must have prototype!");
@@ -221,6 +236,10 @@
} else {
FinishFunction();
}
+
+ // Destroy the 'this' declaration.
+ if (CXXThisDecl)
+ CXXThisDecl->Destroy(getContext());
}
/// ContainsLabel - Return true if the statement contains a label in it. If