[CIR] Support inline C++ member function definitions (#142484)

This change upstreams the code to support emitting inline C++ function
definitions, including the ASTConsumer handler for inline definitions
and the code to load the 'this' pointer.

This necessitates introducing the Itanium CXXABI class. No other CXXABI
subclasses are supported at this time. The Itanium CXXABI is used for
AppleARM64, which will require its own handler for a few special cases
(such as array cookies) later.

1 files changed, 0 insertions, 8 deletions

diff --git a/clang/lib/CIR/CodeGen/CIRGenModule.cpp b/clang/lib/CIR/CodeGen/CIRGenModule.cpp
index 9da7fcc..0ec5dce 100644
--- a/clang/lib/CIR/CodeGen/CIRGenModule.cpp
+++ b/clang/lib/CIR/CodeGen/CIRGenModule.cpp
@@ -55,14 +55,6 @@ static CIRGenCXXABI *createCXXABI(CIRGenModule &cgm) {
   llvm_unreachable("invalid C++ ABI kind");
 }
 
-namespace clang::CIRGen {
-// TODO(cir): Implement target-specific CIRGenCXXABIs
-CIRGenCXXABI *CreateCIRGenItaniumCXXABI(CIRGenModule &cgm) {
-  assert(!cir::MissingFeatures::targetSpecificCXXABI());
-  return new CIRGenCXXABI(cgm);
-}
-} // namespace clang::CIRGen
-
 CIRGenModule::CIRGenModule(mlir::MLIRContext &mlirContext,
                            clang::ASTContext &astContext,
                            const clang::CodeGenOptions &cgo,